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(Faculty Division of Natural Sciences Research Group of Chemistry)｜Researchers' Profile Teacher performance management system

KAWAI Risa

Faculty Division of Natural Sciences Research Group of ChemistryAssistant Professor
Last Updated :2025/04/23

■researchmap

Profile Information

  • Contact Point

    kawai-rcc.nara-wu.ac.jp

  • Name (Japanese)

    Kawai

  • Name (Kana)

    Risa

Degree

  • PhD in Science, Nara Women's University, Mar. 2020

Research Interests

  • Surfactant
  • Amphiphilic ionic liquid

Research Areas

  • Nanotechnology/Materials, Functional solid-state chemistry

Research History

  • Apr. 2024 - Present, Nara Women's University, 研究院自然科学系化学領域, 助教, Japan
  • Apr. 2024 - Mar. 2025, National College of Technology, Suzuka College, Department of Materials Science and Engineering, 非常勤講師
  • Apr. 2023 - Mar. 2024, National Institute of Technology (KOSEN), Suzuka College, Department of Materials Science and Engineering, Senior assistant professor
  • Apr. 2020 - Mar. 2024, Nara Women's University, Institute for YAMATO and Kii-peninsula studies, 協力研究員, Japan
  • Apr. 2020 - Mar. 2023, National Institute of Techology (KOSEN), Suzuka College, Department of Materials Science and Engineering, 助教, Japan

Education

  • Apr. 2017 - Mar. 2020, Nara Women's University, Graduate School of Humanities and Sciences, School of Natural Science and Ecological Awareness
  • Apr. 2015 - Mar. 2017, Nara Women's University, Graduate School of Humanities and Sciences, Department of Chemistry, Japan
  • Apr. 2011 - Mar. 2015, Nara Women's University, Faculty of Science, Department of Chemistry, Japan

Teaching Experience

  • Apr. 2025 - Present
  • Chemistry of Molecular Aggregates, Nara Women's University, Oct. 2024 - Present
  • Apr. 2024 - Present
  • Instrumental Analysis for Materials, National Institute of Technology (KOSEN), Suzuka College, Sep. 2020 - Mar. 2025
  • Organic Chemistry, National Institute of Technology (KOSEN), Suzuka College, Apr. 2020 - Mar. 2025
  • Organic industrial chemistry, Suzuka National College of Technology, Oct. 2023 - Mar. 2024
  • Polymer Properties, National Institute of Technology (KOSEN), Suzuka College, Oct. 2022 - Mar. 2024
  • Graduation research, National Institute of Technology (KOSEN), Suzuka College, Oct. 2020 - Mar. 2024
  • Practice of Metalwork, National Institute of Technology (KOSEN), Suzuka College, Sep. 2020 - Mar. 2024
  • Creative Engineering, National Institute of Technology (KOSEN), Suzuka College, Sep. 2020 - Mar. 2024
  • Experiments in Materials Engineering, National Institute of Technology (KOSEN), Suzuka College, Apr. 2020 - Mar. 2024
  • Introduction to Materials Engineering, Suzuka National College of Technology, Apr. 2020 - Mar. 2024
  • Information Processing, National Institute of Technology (KOSEN), Suzuka College, Oct. 2021 - Mar. 2022
  • Organic Materials, National Institute of Technology (KOSEN), Suzuka College, Sep. 2021 - Mar. 2022
  • Basic Experiments in Materials, National Institute of Technology (KOSEN), Suzuka College, Apr. 2020 - Mar. 2021
  • Analytical Chemistry, National Institute of Technology (KOSEN), Suzuka College, Apr. 2020 - Mar. 2021

Professional Memberships

  • The Society of Separation Process Engineers, Japan
    Oct. 2024 - Present
  • The Society of Polymer Science, Japan
    Apr. 2018 - Present
  • Division of Colloid and Surface Chemistry
    May 2016 - Present
  • Japan Oil Chemists' Society
    Jun. 2015 - Present
  • 日本化学会
    Dec. 2014 - Present
  • Japan Society of Colour Material
    Jul. 2016 - Dec. 2021

■Ⅱ．研究活動実績

Published Papers

  • Soft Matter, Royal Society of Chemistry (RSC), Adsorption and aggregation properties of quaternary-ammonium-salt-based gemini surfactants with a glycinate counterion, Shan Wang; Hiroki Iwase; Shinichi Takata; Risa Kawai; Shiho Yada; Tomokazu Yoshimura, Cationic gemini surfactants have promising bioapplications that are limited by the use of halides as counterions, which pose environmental and human health risks. This can be circumvented by using naturally..., 2025, Scientific journal, 10.1039/d5sm00139k
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  • Refereed, Procedia Computer Science, Elsevier BV, Digital Innovation in Faculty Development: Crafting Academic Portfolios for the Next Era, Hideyuki Kanematsu; Akiko Ogawa; Takeshi Kogo; Risa Kawai; Dana M. Barry; Nobuyuki Ogawa; Shin-nosuke Suzuki; Goichi Hagiwara; Kayoko Kurita, This paper presents one project on integrating digital innovation in faculty development by creating academic portfolios. Academic portfolios document the multifaceted achievements of faculty members and help them in their professional progress and self-evaluation. This initiative adopted a systematic approach following the TU guidelines, incorporating lectures, mentoring, and collaborative sessions, and guiding educators to create portfolios that integrate teaching, research, and service activities. The project’s use of digital tools enabled time efficiency, accessibility, and iterative improvement and improved the transparency and scope of faculty performance. The digital platform also facilitated real-time feedback and integration of the portfolio with a wider digital repository, which aligns with environmentally sustainable practices. Participant feedback highlighted increased motivation and a deeper understanding of the interaction between teaching and research. The project demonstrated that the digital portfolio powerfully aligned teachers’ activities with their professional ethos and promoted continuous development and personal growth goals. This approach suggests the potential for transforming faculty development in the academic community., Nov. 2024, 246, 4075, 4083, Scientific journal, True, True, 10.1016/j.procs.2024.09.246
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  • Materials, MDPI AG, AC Electromagnetic Field Controls the Biofilms on the Glass Surface by Escherichia coli and Staphylococcus epidermidis Inhibition Effect, Natsu Aoyama; Hideyuki Kanematsu; Dana M. Barry; Hidekazu Miura; Akiko Ogawa; Takeshi Kogo; Risa Kawai; Takeshi Hagio; Nobumitsu Hirai; Takehito Kato; Michiko Yoshitake; Ryoichi Ichino, Biofilms, mainly comprised of bacteria, form on materials’ surfaces due to bacterial activity. They are generally composed of water, extracellular polymeric substances (polysaccharides, proteins, nucleic acids, and lipids), and bacteria. Some bacteria that form biofilms cause periodontal disease, corrosion of the metal materials that make up drains, and slippage. Inside of a biofilm is an environment conducive to the growth and propagation of bacteria. Problems with biofilms include the inability of disinfectants and antibiotics to act on them. Therefore, we have investigated the potential application of alternating electromagnetic fields for biofilm control. We obtained exciting results using various materials’ specimens and frequency conditions. Through these studies, we gradually understood that the combination of the type of bacteria, the kind of material, and the application of an electromagnetic field with various low frequencies (4 kHz–12 kHz) changes the circumstances of the onset of the biofilm suppression effect. In this study, relatively high frequencies (20 and 30 kHz) were applied to biofilms caused by Escherichia coli (E. coli) and Staphylococcus epidermidis (S. epidermidis), and quantitative evaluation was performed using staining methods. The sample surfaces were analyzed by Raman spectroscopy using a Laser Raman spectrometer to confirm the presence of biofilms on the surface., 06 Nov. 2023, 16, 21, 7051, 7051, Scientific journal, 10.3390/ma16217051
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  • Refereed, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier BV, Surface adsorption and bulk properties of polyoxyethylene–polyoxypropylene random copolymer-type double-chained surfactants in quaternary-ammonium-salt-type amphiphilic gemini ionic liquids, Risa Kawai; Maiko Niki; Shiho Yada; Tomokazu Yoshimura, 05 Feb. 2023, 658, 130644, 130644, Scientific journal, 10.1016/j.colsurfa.2022.130644
    DOI URL
  • Materials, MDPI AG, Quantitative Analyses of Biofilm by Using Crystal Violet Staining and Optical Reflection, Ryuto Kamimura; Hideyuki Kanematsu; Akiko Ogawa; Takeshi Kogo; Hidekazu Miura; Risa Kawai; Nobumitsu Hirai; Takehito Kato; Michiko Yoshitake; Dana M. Barry, Biofilms have caused many problems, not only in the industrial fields, but also in our daily lives. Therefore, it is important for us to control them by evaluating them properly. There are many instrumental analytical methods available for evaluating formed biofilm qualitatively. These methods include the use of Raman spectroscopy and various microscopes (optical microscopes, confocal laser microscopes, scanning electron microscopes, transmission electron microscopes, atomic force microscopes, etc.). On the other hand, there are some biological methods, such as staining, gene analyses, etc. From the practical viewpoint, staining methods seem to be the best due to various reasons. Therefore, we focused on the staining method that used a crystal violet solution. In the previous study, we devised an evaluation process for biofilms using a color meter to analyze the various staining situations. However, this method was complicated and expensive for practical engineers. For this experiment, we investigated the process of using regular photos that were quantified without any instruments except for digitized cameras. Digitized cameras were used to compare the results. As a result, we confirmed that the absolute values were different for both cases, respectively. However, the tendency of changes was the same. Therefore, we plan to utilize the changes before and after biofilm formation as indicators for the future., 28 Sep. 2022, 15, 19, 6727, 6727, Scientific journal, 10.3390/ma15196727
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  • Refereed, Transactions of the IMF, Informa UK Limited, Biofilms formed on metallic materials by E. coli and S. epidermidis and their evaluation by crystal violet staining and its reflection, M. Takayanagi; H. Kanematsu; H. Miura; T. Kogo; R. Kawai; A. Ogawa; N. Hirai; T. Kato; M. Yoshitake; T. Tanaka; D. M. Barry, 04 Jul. 2022, 100, 4, 200, 207, Scientific journal, 10.1080/00202967.2022.2066830
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  • Refereed, Materials, MDPI AG, Proposal for Some Affordable Laboratory Biofilm Reactors and Their Critical Evaluations from Practical Viewpoints, Hikonaru Kudara; Hideyuki Kanematsu; Dana M. Barry; Akiko Ogawa; Takeshi Kogo; Hidekazu Miura; Risa Kawai; Nobumitsu Hirai; Takehito Kato; Michiko Yoshitake, Biofilms are a result of bacterial activities and are found everywhere. They often form on metal surfaces and on the surfaces of polymeric compounds. Biofilms are sticky and mostly consist of water. They have a strong resistance to antimicrobial agents and can cause serious problems for modern medicine and industry. Biofilms are composed of extracellular polymeric substances (EPS) such as polysaccharides produced from bacterial cells and are dominated by water at the initial stage. In a series of experiments, using Escherichia coli, we developed three types of laboratory biofilm reactors (LBR) to simulate biofilm formation. For the first trial, we used a rotary type of biofilm reactor for stirring. For the next trial, we tried another rotary type of reactor where the circular plate holding specimens was rotated. Finally, a circular laboratory biofilm reactor was used. Biofilms were evaluated by using a crystal violet staining method and by using Raman spectroscopy. Additionally, they were compared to each other from the practical (industrial) viewpoints. The third type was the best to form biofilms in a short period. However, the first and second were better from the viewpoint of “ease of use”. All of these have their own advantages and disadvantages, respectively. Therefore, they should be properly selected and used for specific and appropriate purposes in the future., 04 Jul. 2022, 15, 13, 4691, 4691, Scientific journal, 10.3390/ma15134691
    DOI URL
  • Refereed, Antimicrobial and Antiviral Materials - Polymers, Metals, Ceramics, and Applications, CRC Press (Taylor Francis), Biofilms and Materials' Infectivity, Hideyuki Kanematsu; Dana M. Barry; Risa Kawai; Takeshi Kogo; Akiko Ogawa; Paul McGrath; Toshihiro Tanaka, Infection has attracted global concern, since the pandemic caused by COVID-19 occurred at the end of 2019. Infection is generally defined as the phenomenon that microorganisms and viruses as pathogens attach to cell surfaces and enter organisms, which serve as their hosts. However, infection is not restricted to the phenomenon where bacteria and viruses move from human to human. For example, in the case of COVID-19, viruses seem to move from human to human through materials. If this is true for other infections, then the role of materials, the force between materials and microorganisms/viruses, and their attachments must be studied in detail.
    In this chapter, we focus on bacteria and viruses, and discuss their structures, the general mechanisms of infection in humans, and the interaction with materials' surfaces. When we discuss the interaction between materials’ surfaces and microorganisms/viruses, biofilms must be mentioned. They are produced by bacterial activities and appear as unique structures on materials’ surfaces [1-8]. Biofilms are mainly composed of water, proteins, nucleic acids (DNA and RNA), and lipids at the initial stage. They cause materials’ surfaces to be sticky and a “hot bed" for bacteria resisting biocides, antibiotics, etc.
    Biofilms seem to play an important role for infections spread from human to human. They are strongly related to materials too. In this chapter, an outline is provided about biofilms in terms of infectivity of materials, the appropriate quantitative evaluation methods, and potential countermeasures from the viewpoint of materials science., May 2022, 47, 66, In book, True, True, 10.1201/9781003143093
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  • Refereed, Antimicrobial and Antiviral Materials - Polymers, Metals, Ceramics, and Applications, CRC Press (Taylor Francis), antibacterial Ceramics: The Past, Present, and Future, Hideyuki Kanematsu; Dana M. Barry; Risa Kawai; Takeshi Kogo; Akiko Ogawa; Paul McGrath; Toshihiro Tanaka, In this chapter paper, we focus on ceramic materials. Mechanisms for the antibacterial effect by ceramics are discussed and some concrete examples of antibacterial ceramics are mentioned., May 2022, 85, 102, In book, True, True, 10.1201/9781003143093
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  • Refereed, Handbook of Nanocelluloses - Classification, Properties, Fabrication, and Emerging Applications ed.Ahmed Barhaum, Springer Nature, Nanocellulose for Antibacterial, Anti-biofouling Applications: To Antiviral Development in the Future, Hideyuki Kanematsu; Dana M. Barry; Ryo Satoh; Risa Kawai; Paul McGrath, Nanocellulose is produced from natural resources, such as plants and bacteria, by using artificial mechanical and chemical processes. Since it is made from natural resources, nanocellulose is environmentally friendly, biocompatible, and biodegradable and has low toxicity. In addition, it has high mechanical strength and elasticity and many other attractive properties for a variety of applications.
    However, it doesn’t have inherent antifouling properties. In this chapter, we analyze nanocellulose materials from the viewpoint of antifouling properties. We discuss the fundamental aspects needed for the analyses and introduce the concepts of antibacterial and antifouling properties. Then, some specific cases are provided. Finally, the antiviral property for nanocellulose materials is proposed for future investigations., Feb. 2022, 1, 1, 1, 14, Scientific journal, True, True, 10.1007/978-3-030-62976-2_20-1#DOI
    DOI URL
  • Refereed, Langmuir, American Chemical Society (ACS), Adsorption and Aggregation Behavior of Mixtures of Quaternary-Ammonium-Salt-Type Amphiphilic Compounds with Fluorinated Counterions and Surfactants, Risa Kawai; Shiho Yada; Tomokazu Yoshimura, 28 Sep. 2021, 37, 38, 11330, 11337, Scientific journal, 10.1021/acs.langmuir.1c01912
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  • Refereed, Journal of Molecular Liquids, Elsevier BV, Layer Structure of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini and Trimeric Ionic Liquids, Risa Kawai; Shiho Yada; Tomokazu Yoshimura, 15 Aug. 2021, 336, 116459, Scientific journal, 10.1016/j.molliq.2021.116459
    DOI URL
  • Refereed, Proceedings of the 3rd J-PARC Symposium (J-PARC2019), Journal of the Physical Society of Japan, Rheo-SANS Study on Shear Thinning Behavior of Cationic Gemini Surfactant (12–2–12) in Salt-free Solution, Hiroki Iwase; Risa Kawai; Tomokazu Yoshimura; Shin-ichi Takata, 26 Mar. 2021, 33, 01107878, International conference proceedings, 10.7566/jpscp.33.011078
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  • Refereed, Molecules, {MDPI} {AG}, Surface Adsorption Properties and Layer Structures of Homogeneous Polyoxyethylene-Type Nonionic Surfactants in Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids with Oxygen- or Nitrogen-Containing Spacers, Risa Kawai; Maiko Niki; Shiho Yada; Tomokazu Yoshimura, 22 Oct. 2020, 25, 21, 4881, 4881, Scientific journal, 10.3390/molecules25214881
    DOI URL
  • Refereed, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Elsevier BV, Physicochemical and Solution Properties of Quaternary-Ammonium- Salt-Type Amphiphilic Gemini Ionic Liquids with Spacers Containing Oxygen or Nitrogen, Risa Kawai; Maiko Niki; Shiho Yada; Tomokazu Yoshimura, 20 Oct. 2020, 603, 125218, 125218, Scientific journal, 10.1016/j.colsurfa.2020.125218
    DOI URL
  • Refereed, Langmuir, American Chemical Society (ACS), Surface Adsorption and Bulk Properties of Surfactants in Quaternary-Ammonium-Salt-Type Amphiphilic Monomeric and Gemini Ionic Liquids, Risa Kawai; Shiho Yada; Tomokazu Yoshimura, 19 May 2020, 36, 19, 5219, 5226, Scientific journal, 10.1021/acs.langmuir.0c00541
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  • Refereed, Characterization and Solution Properties of Adamantane-Containing Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquids, 15 Nov. 2019, 294, 111586, Scientific journal, 10.1016/j.molliq.2019.111586
    DOI URL
  • Refereed, Physical Chemistry Chemical Physics, Physicochemical and Solution Properties of Quaternary-Ammonium-Salt-Type Amphiphilic Trimeric Ionic Liquids, Risa KAWAI; Shiho YADA; Tomokazu YOSHIMURA, 07 Nov. 2019, 21, 45, 25065, 25071, Scientific journal
  • Refereed, ACS Omega, Characterization and Solution Properties of Quaternary-Ammonium-Salt-Type Amphiphlic Gemini Ionic Liquids, Risa KAWAI; Shiho YADA; Tomokazu YOSHIMURA, 03 Sep. 2019, 4, 10, 14242, 14250, Scientific journal, 10.1021/acsomega.9b01660
    DOI URL
  • Refereed, Journal of Colloid and Interface Science, Elsevier {BV}, Rheo-SANS Study on Relationship between Micellar Structures and Rheological Behavior of Cationic Gemini Surfactants in Solution, Hiroki Iwase; Risa Kawai; Ken Morishima; Shin-ichi Takata; Tomokazu Yoshimura; Mitsuhiro Shibayama, Hypothesis: Gemini surfactant 12-2-12 (dimethylene-1,2-bis(dodecyl dimethylammonium bromide)) solutions are known to show shear thickening and thinning under salt-free conditions. Because the rheological behavior of the wormlike micelles formed by 12-2-12 in solution is related to their structure, we expected that changes to the precursor structure would affect their rheological behaviors. It is also important to understand the effect of the introduction of a spacer group in the 12-2-12 molecules on the rheological behavior and structure of the wormlike micelles under shear flow.Experiments: Simultaneous small-angle neutron scattering and rheological measurements (Rheo-SANS) of the 12-2-12 solutions were performed. We exhaustively studied the structural changes in the wormlike micelles upon increasing shear rate.Findings: We found that the wormlike micelles were oriented in the direction of the flow due to elongation and that changes to the precursor of the wormlike micelles did not affect the shear thickening. As a precursor structural change of shear thinning, the wormlike micelles elongated while maintaining their orientation. We found that an increase in the molecular curvature of the 12-2-12 due to the introduction of a spacer-group contributed to the unusual rheological behaviors of the wormlike micelles in a solution under shear flow. (C) 2018 Elsevier Inc. All rights reserved., 07 Mar. 2019, 538, 357, 366, Scientific journal, 10.1016/j.jcis.2018.11.104
    DOI URL

MISC

  • Not Refereed, Oleoscience, Japan Oil Chemists' Society, Study on Molecular Design and Syntheses of Novel Amphiphilic Ionic Liquids and Their Surface and Bulk Properties, Risa KAWAI, 01 Jan. 2025, 25, 1, 5, 11, Introduction scientific journal, 10.5650/oleoscience.25.5
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  • レオロジー討論会講演要旨集(CD-ROM), Rheological Behavior of Amino Acid-Sugar Hybrid Surfactants in Aqueous Solution, 高見風夏; 河合里紗; 吉村倫一; 矢田詩歩, 2024, 72nd
  • Refereed, Accounts of Materials & Surface Research, Interfacial Adsorption and Layer Structure of Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquids, Risa Kawai; Shiho Yada; Tomokazu Yoshimura, 25 Aug. 2022, 7, 3, 92, 102, Introduction scientific journal
  • Not Refereed, Colloid & Interface Communication (C & I Commun), Buk Behavior and Adsorption Properties at Air/Water Interface of Amphiphilic Ionic Liquids, Risa Kawai, 10 May 2022, 47, 2, 21, 24, Introduction scientific journal
  • Not Refereed, Advanced Materials and Processes, ASM International, Various methods are available to evaluate the behavior of viruses on material surfaces, an important area of research for determining how long a virus can live on an inanimate object, and learning how to design and develop advanced antiviral materials., Hideyuki Kanematsu; Risa Kawai; Dana M. Barry; Eri Nakajima; Yasuo Imoto, 01 Jul. 2021, 179, 5, 28, 30, Report scientific journal
  • Refereed, Biofouling on Materials’ Surfaces, the Effects and the Countermeasures, Hideyuki Kanematsu; Risa Kawai; Takeshi Kogo; Akiko Ogawa, Jun. 2021, 58, 3, 10, 14, Introduction scientific journal
  • 2021, 144th
  • Refereed, Japan Thermal Spray Society, Antibacterial, Antiviral and Antibiofilim Coatings, Hideyuki Kanematsu; Risa Kawai; Ryo Satoh, Oct. 2020, 57, 4, 183, 190, Introduction scientific journal
  • Not Refereed, ALUTOPIA (Kallos Publishing Co. Ltd), Antibacterial Materials and Biofilm - the Importance and Meaning 5, Hideyuki Kanematsu; Risa Kawai; Ryo Satoh, Apr. 2020, 51, 4, 9, 17, Introduction scientific journal
  • Refereed, Journal of the Japan Society of Colour Material, Japan Society of Colour Material, Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquids, Risa KAWAI; Shiho YADA; Tomokazu YOSHIMURA, 20 Mar. 2020, 93, 3, 91, 98, Introduction scientific journal, 10.4011/shikizai.93.91
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  • 2020, 142nd
  • 量子ビームサイエンスフェスタ(Web), Formation mechanism of wormlike micelles formed by polymeric cationic surfactants: salt-concentration and shear-rate dependences, 岩瀬裕希; 河合里紗; 吉村倫一, 2019, 2018
  • Not Refereed, Development of Quaternary Ammonium Salt-Type Amphiphilic Ionic Liquids, Risa KAWAI; Tomokazu TOSHIMURA, Sep. 2018, 47, 5, 13, Introduction commerce magazine

Presentations

  • Effect of Amino Acid on Structure and Stability of Foam Formed by Amino Acid-Sugar Hybrid Surfactant, Oral presentation, 27 Mar. 2025, 26 Mar. 2025 - 29 Mar. 2025
  • Aggregation Behavior of Double-Chained Amphiphilic Glycolipid in Water/Ethanol Mixed Solution, Oral presentation, 27 Mar. 2025, 26 Mar. 2025 - 29 Mar. 2025
  • Synthesis and Solution Properties of Inverse-Monomeric and Gemini Surfactants with Phosphorylcholine Group, Oral presentation, 27 Mar. 2025, 26 Mar. 2025 - 29 Mar. 2025
  • Synthesis and Solution Properties of Sugar-Based Surfactants with Multi-Branched Chains, Oral presentation, 27 Mar. 2025, 26 Mar. 2025 - 29 Mar. 2025
  • Solution Properties of Quaternary Ammonium Salt-Type Monomeric and Gemini Surfactants with Sugar in Counterion, Oral presentation, 27 Mar. 2025, 26 Mar. 2025 - 29 Mar. 2025
  • Solubilization Properties of Polyoxyethylene-Type Surfactant with Multi-Branched Chains, Poster presentation, 26 Mar. 2025, 26 Mar. 2025 - 29 Mar. 2025
  • Risa Kawai; Tomokazu Yoshimura, Extraction of Metal Ions Using Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids, Poster presentation, 20 Dec. 2024, 19 Dec. 2024 - 20 Dec. 2024
  • Poster presentation, 13 Dec. 2024, 13 Dec. 2024 - 13 Dec. 2024
  • Poster presentation, 13 Dec. 2024, 13 Dec. 2024 - 13 Dec. 2024
  • Risa Kawai; Tomokazu Yoshimura, Extraction of Metal Ions Using Quaternary-Ammonium-Salt-Type Gemini Ionic Liquids, Poster presentation, 13 Nov. 2024, 13 Nov. 2024 - 14 Nov. 2024
  • Poster presentation, 21 Oct. 2024, 20 Oct. 2024 - 24 Oct. 2024
  • Poster presentation, 17 Oct. 2024, 17 Oct. 2024 - 18 Oct. 2024
  • Risa Kawai; Shiho Yada; Masashi Ohno; Toshinari Ohno; Tomokazu Yoshimura, The 75th Divisional Meeting of Division of Colloid and Surface Chemistry, Solubilization Behavior of Polyoxyethylene-Type Nonionic Surfactants with Multi-Branched Chains, 17 Sep. 2024, 19 Sep. 2024 - 19 Sep. 2024
  • Fuka Takami; Risa Kawai; Goro Hashimoto; Kentaro Teramoto; Ryuji Ohmori; Tomokazu Yoshimura, The 62nd Annual Meeting of the Japan Oil Chemist's Society, Air/Water Interface Adsorption and Aggregate Formation of Amino Acid-Sugar Hybrid Surfactants with Aromatic Rings, Oral presentation, 03 Sep. 2024, 03 Sep. 2024 - 05 Sep. 2024
  • Risa Kawai, The 62nd Annual Meeting of the Japan Oil Chemist's Society, Design and Synthesis of Novel Amphiphilic Ionic Liquids and Properties of Surface and Bulk, Invited oral presentation, 03 Sep. 2024, 03 Sep. 2024 - 05 Sep. 2024
  • Yasuharu Domoto; Risa Kawai; Shiho Yada; Tomokazu Yoshimura, The 104th Annual Spring Meeting of the Chemical Society of Japan, Monolayer Formation of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids at Air/Water Interface, Poster presentation, 20 Mar. 2024, 18 Mar. 2024 - 21 Mar. 2024
  • Risa Kawai; Hideyuki Kanematsu; Shiho Yada; Tomokazu Yoshimura, The 104th Annual Spring Meeting of the Chemical Society of Japan, Wettability of Solid Surface and Antibacterial Properties of Cationic Gemini and Trimeric Surfactants, Poster presentation, 20 Mar. 2024, 18 Mar. 2024 - 21 Mar. 2024
  • Risa Kawai; Tomokazu Yoshimura, Development of Benzalkonium-Type Surfactants with Amino Acid in Counterion, Nominated symposium, 22 Feb. 2024, 22 Feb. 2024 - 22 Feb. 2024
  • Iria Ikeda; Akiko Ogawa; Takeshi Kogo; Risa Kawai; Hideyuki Kanematsu, Evaluation of Antibiofilm Properties of Various Commercial Polymer Materials, Oral presentation, 22 Dec. 2023, 22 Dec. 2023 - 22 Dec. 2023
  • Nonoka Ikeda; Akiko Ogawa; Takeshi Kogo; Risa Kawai; Hideyuki Kanematsu, Evaluation of Antibiofilm Properties of Ionic Liquids, Oral presentation, 22 Dec. 2023, 22 Dec. 2023 - 22 Dec. 2023
  • Risa Kawai, For the Development of Antibacterial and Anti-Biofilm Coatings, 22 Dec. 2023, 22 Dec. 2023 - 22 Dec. 2023
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, Monolayer Formation of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids at the Air-Water Interface, 21 Nov. 2023, 21 Nov. 2023 - 22 Nov. 2023
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, The 74th Divisional Meeting of Division of Colloid and Surface Chemistry, Synthesis and Solution Properties of Cationic Gemini Surfactants Containing Amino Acids in Counterion, 12 Sep. 2023, 12 Sep. 2023 - 14 Sep. 2023
  • Risa Kawai; Masashi Ohno; Toshinari Koda; Shiho Yada; Tomokazu Yoshimura, The 61st Annual Meeting of the Japan Oil Chemists' Society, Evaluation of Wettability of Polyoxyethylene-Type Nonionic Surfactants with Multi-Branched Chains at Solid/Liquid Interface, 07 Sep. 2023, 08 Sep. 2023 - 09 Sep. 2023
  • Risa Kawai; Maiko Niki; Shiho Yada; Tomokazu Yoshimura, The 37rd Conference of the European Colloid and Interface Society (ECIS 2023), Surface Adsorption and Bulk Properties of Polyoxyethylene–Polyoxypropylene Random Copolymer-Type Double-Chained Surfactants in Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids, 05 Sep. 2023, 03 Sep. 2023 - 08 Sep. 2023
  • Risa Kawai, Surface Adsorption and Bulk Properties of Amphiphilic Ionic Liquids, 28 Aug. 2023, 28 Aug. 2023 - 29 Aug. 2023
  • Risa Kawai, 11th Asian Network for Natural and Unnatural Materials (ANNUM XI), Surface Adsorption and Solution Properties of Mixtures of Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquids and Surfactants, 04 Jul. 2023, 03 Jul. 2023 - 07 Jul. 2023
  • Risa Kawai; Junsei Yahata; Shiho Yada; Tomokazu Yoshimura, 103rd CSJ Annual Meeting (Nenkai), Solution Properties of Quaternary-Ammonium-Salt-Type Gemini Surfactants Containing Amino Acid as Counterion, 24 Mar. 2023, 22 Mar. 2023 - 25 Mar. 2023
  • Keisuke Suzaki; Yudai Nakamura; Risa Kawai; Hideyuki Kanematsu; Tsukasa morita; Shiho Yada; Tomokazu Yoshimura, 103, Contact Angle and Antibacterial Properties of Quaternary-Ammonium-Salt-Type Gemini and Trimeric Surfactants, 22 Mar. 2023, 22 Mar. 2023 - 25 Mar. 2023
  • Junsei Yahata; Risa Kawai; Hideyuki Kanematsu; Shiho Yada; Tomokazu Yoshimura, 103rd CSJ Annual Meeting (Nenkai), Surface Adsorption and Antibacterial Properties of Cationic Gemini Surfactant Containing Amino Acid, 22 Mar. 2023, 22 Mar. 2023 - 25 Mar. 2023
  • Kota Shiomoto; Momoka Nishimura; Sato Haraguchi; Kanta Futamura; Kohei Watanabe; Risa Kawai, The 25th Student Presentation of the Society of Chemical Engineers, Japan, Preparation and Evaluation of Soaps Using Waste Rice Bran, 04 Mar. 2023, 04 Mar. 2023 - 04 Mar. 2023
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, Surface Adsorption and Bulk Behavior of Polyoxyethylene-Polyoxypropylene Random Copolymer-Type Double-Chained Surfactants in Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids, 24 Nov. 2022, 24 Nov. 2022 - 25 Nov. 2022
  • Shan Wang; Hiroki Iwase; Shinichi Takata; Risa Kawai; Shiho Yada; Tomokazu Yoshimura, The 73rd Divisional Meeting of Division of Colloid and Surface Chemistry, Aggregation Properties of Quaternary-Ammonium-Salt-type Gemini Amphiphile with Amino Acid in Counterion, 22 Sep. 2022, 20 Sep. 2022 - 22 Sep. 2022
  • Moe Watanabe; Risa Kawai; Shiho Yada; Tomokazu Yoshimura, The 73rd Divisional Meeting of Division of Colloid and Surface Chemistry, Synthesis and Solution Properties of Benzalkonium-type Novel Gemini Surfactant, 22 Sep. 2022, 20 Sep. 2022 - 22 Sep. 2022
  • Risa Kawai; Wang Shan; Shiho Yada; Tomokazu Yoshimura, The 73rd Divisional Meeting of Division of Colloid and Surface Chemistry, Synthesis and Solution Properties of Quaternary-Ammonium-Salt-Type Gemini Surfactants with Glycine in Counterion, 22 Sep. 2022, 20 Sep. 2022 - 22 Sep. 2022
  • Risa Kawai, The 53rd Autumn Meeting, The Society of Chemical Engineers, Japan, Surface Adsorption and Bulk Properties of Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquid, 14 Sep. 2022, 14 Sep. 2022 - 16 Sep. 2022
  • Ai Okado; Risa Kawai; Shiho Yada; Tomokazu Yoshimura, 102nd CSJ Annual Meeting (Nenkai), Solution Properties of Quaternary-Ammonium-Salt-Type Gemini Surfactants Containing Amino Acid as Counterion, 24 Mar. 2022, 23 Mar. 2022 - 26 Mar. 2022
  • Risa Kawai; Aya Furuichi; Hideyuki Kanematsu; Tsukasa Morita; Shiho Yada; Tomokazu Yoshimura, 102nd CSJ Annual Meeting (Nenkai), Surface Adsorption Behavior and Antibacterial Properties of Quaternary-Ammonium-Salt-Type Gemini and Trimeric Surfactants, 23 Mar. 2022, 23 Mar. 2022 - 26 Mar. 2022
  • Risa Kawai, Learning as a Science Researcher" - Education and Research at a National College of Technology, 18 Feb. 2022, 18 Feb. 2022 - 18 Feb. 2022
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, The 72nd Divisional Meeting of Division of Colloid and Surface Chemistry, Adsorption Behavior at Air/Water Interface and Aggregation Behavior in Solution for Mixtures of Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquids and Surfactants, 15 Sep. 2021, 15 Sep. 2021 - 17 Sep. 2021
  • Risa Kawai; Maiko Niki; Shiho Yada; Tomokazu Yoshimura, The 60th Annual Meeting of the Japan Oil Chemists' Society, Adsorption Behavior and Bulk Properties of Polyoxyethylene–Polyoxypropylene Copolymer Dialkyl Ether in Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids as a Solvent, 06 Sep. 2021, 06 Sep. 2021 - 11 Sep. 2021
  • Mao Nakagawa; Risa Kawai; Atsushi Okada; Tohru Inaoka; Shiho Yada; Tomokazu Yoshimura, The 59th Annual Meeting of the Japan Oil Chemists' Society, Solution properties and phase behavior of polyoxyethylene secondary alkyl ether surfactants, 02 Nov. 2020, 02 Nov. 2020 - 07 Nov. 2020
  • ShihoYada; Rino Ohara; Risa Kawai; Yasuhiro Ohno; Takeshi Matsumoto; Tsutomu Hosoya; Tomokazu Yoshimura, The 59th Annual Meeting of the Japan Oil Chemists' Society, Effect of Polymer Structure on Solution Properties of Mixture of Anionic Surfactant LAS and Polymer, 02 Nov. 2020, 02 Nov. 2020 - 07 Nov. 2020
  • Risa Kawai; Maiko Niki; Shiho Yada; Tomokazu Yoshimura, The 59th Annual Meeting of the Japan Oil Chemists' Society, Solution and Bulk Properties of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids with Spacers Containing Oxygen or Nitrogen, 02 Nov. 2020, 02 Nov. 2020 - 07 Nov. 2020
  • Risa Kawai; Shho Yada; Tomokazu Yoshimura, The 71st Divisional Meeting of Division of Colloid and Surface Chemistry, Bulk Properties of Nonionic Surfactants in Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids with Different Alkyl Chains, 14 Sep. 2020, 14 Sep. 2020 - 16 Sep. 2020
  • Mao Nakagawa; Risa Kawai; Atsushi Okada; Toru Inaoka; Shiho Yada; Tomokazu Yoshimura, Interfacial Adsorption and Micelle Properties of Polyoxyethylene Type Double Chained Nonionic Surfactants, 23 Mar. 2020, 22 Mar. 2020 - 25 Mar. 2020
  • Risa Kawai; Masashi Ohno; Toshinari Koda; Shiho Yada; Tomokazu Yoshimura, 100th CSJ Annual Meeting (Nenkai), Layer Structure of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids, 23 Mar. 2020, 22 Mar. 2020 - 25 Mar. 2020
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, Surface Adsorption and Bulk Properties for Two Component System of Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquids and Three Component System with Water, 21 Nov. 2019, 21 Nov. 2019 - 22 Nov. 2019
  • OKINAWA COLLOIDS 2019: An International Conference on Colloid & Surface Science Celebrating the 70th Anniversary of the Divisional Meeting of Division of Colloid and Surface Chemistry, Surface Adsorption and Layer Structure of Mixed System of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquid and Homogeneous Polyoxyethylene-Type Nonionic Surfactant, 06 Nov. 2019, 03 Nov. 2019 - 09 Nov. 2019
  • Hiroki Iwase; Risa Kawai; Tomokazu Yoshimura, OKINAWA COLLOIDS 2019: An International Conference on Colloid & Surface Science Celebrating the 70th Anniversary of the Divisional Meeting of Division of Colloid and Surface Chemistry, Rheo-SANS Study on Rheological Behavior Observed in Cationic Gemini-Type Surfactant Solution, 06 Nov. 2019, 03 Nov. 2019 - 08 Nov. 2019
  • Risa Kawai; Maiko Niki; Shiho Yada; Tomokazu Yoshimura, OKINAWA COLLOIDS 2019: An International Conference on Colloid & Surface Science Celebrating the 70th Anniversary of the Divisional Meeting of Division of Colloid and Surface Chemistry, Characterization of Amphiphilic Gemini Ionic Liquids Having Various Spacers and Their Properties with Nonionic Surfactants, 06 Nov. 2019, 03 Nov. 2019 - 08 Nov. 2019
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, The 58th Annual Meeting of the Japan Oil Chemists' Society, Interfacial Adsorption and Aggregation Behavior for Three Component System of Quaternary Ammonium Salt-Type Amphiphilic Ionic Liquid / Surfactant / Water, 26 Sep. 2019, 24 Sep. 2019 - 26 Sep. 2019
  • Risa Kawai; Mao Nakagawa; Shiho Yada; Tomokazu Yoshimura; Atsushi Okada; Toru Inaoka, The 58th Annual Meeting of the Japan Oil Chemists' Society, Determining the wettability at Solid Surface by Polyoxyethylene Type Double Chained Nonionic Surfactants, 26 Sep. 2019, 24 Sep. 2019 - 26 Sep. 2019
  • The 33rd Conference of the European Colloid and Interface Society (ECIS 2019), Characterization of Quaternary-Ammonium-Salt-Type Amphiphilic Gemini Ionic Liquids with Various Spacer Structures, 10 Sep. 2019, 08 Sep. 2019 - 13 Sep. 2019
  • Risa Kawai; Mao Nakagawa; Shiho Yada; Tomokazu Yoshimura; Atsushi Okada; Toru Inaoka, The 33rd Conference of the European Colloid and Interface Society (ECIS 2019), Solution Properties of Polyoxyethylene Type Double Chained Nonionic Surfactants, 09 Sep. 2019, 08 Sep. 2019 - 13 Sep. 2019
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, Development of Quaternary-Ammonium-Salt-Type Amphiphilic Ionic Liquids with Various Structures, 20 Jul. 2019, 20 Jul. 2019 - 20 Jul. 2019
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Atsushi Okada; Toru Inaoka, The 68th Annual Meeting of Polymer Society of Japan, Aggregation Properties of Polyoxyethylene Type Double Chained Nonionic Surfactants in Aqueous Solution, 29 May 2019, 29 May 2019 - 31 May 2019
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Atsushi Okada; Toru Inaoka, Solution Properties of Polyoxyethylene Type Double Chained Nonionic Surfactants, 17 Mar. 2019, 16 Mar. 2019 - 19 Mar. 2019
  • Maiko Niki; Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Masaki Murai; Koji Sekiguchi, Surface Adsorption and Layer Structure of Polyoxyethylene-Polyoxypropylene Copolymer Dialkyl Ether in Quaternary Ammonium Salt-Type Gemini Ionic Liquids, 30 Oct. 2018, 29 Oct. 2018 - 30 Oct. 2018
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, Development of Quaternary Ammonium Salt-Type Novel Amphiphilic Ionic Liquids with Various Structure, 30 Oct. 2018, 29 Oct. 2018 - 30 Oct. 2018
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 69th Divisional Meeting on Colloid and Interface Chemistry, Properties of Quaternary Ammonium Salt-Type Ionic Liquid with Adamantane, and Surface Adsorption and Aggregation Behavior of Nonionic Surfactant in Ionic Liquid, 20 Sep. 2018, 18 Sep. 2018 - 20 Sep. 2018
  • Maiko Niki; Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 69th Divisional Meeting on Colloid and Interface Chemistry, Surface Adsorption and Aggregation Behavior for Two Component System of Quaternary Ammonium Salt-Type Amphiphilic Gemini Ionic Liquid and Homogeneous Polyoxyethylene-Polyoxypropylene-Type Nonionic Surfactant, 18 Sep. 2018, 18 Sep. 2018 - 20 Sep. 2018
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 69th Divisional Meeting on Colloid & Interface Chemistry, Surface Adsorption and Aggregation Behavior for Two Components of Quaternary Ammonium Salt-Type Amphiphilic Ionic Liquid and Surfactant and Three Components Containing Water, 18 Sep. 2018, 18 Sep. 2018 - 20 Sep. 2018
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 57th Annual Meeting of the Japan Oil Chemists' Society, Surface Adsorption Behavior for Quaternary Ammonium Salt-Type Ionic Liquid and Surfactant Mixed Solution System, 06 Sep. 2018, 04 Sep. 2018 - 06 Sep. 2018
  • Risa Kawai Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, 8th International Colloids Conference, Properties of Quaternary Ammonium Salt-Type Gemini Ionic Liquids and Surface Adsorption Behavior of Polyoxyethylene-Type Nonionic Surfactant in Ionic Liquid, 10 Jun. 2018, 10 Jun. 2018 - 13 Jun. 2018
  • Risa Kawai; Tomokazu Yoshimura, IUPAC Workshop Advances in Analytical Chemistry II, Properties of Quaternary Ammonium Salt-Type Ionic Liquids with Adamantyl Group, 27 Apr. 2018, 27 Apr. 2018 - 27 Apr. 2018
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, 98th CSJ Annual Meeting (Nenkai), Development of Quaternary Ammonium Salt-Type Novel Ionic Liquids and Properties of Surfactants in Ionic Liquids, 20 Mar. 2018, 23 Mar. 2018 - 23 Mar. 2018
  • Maiko Niki; Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, 98th CSJ Annual Meeting (Nenkai), Surface-Active Properties of Homogeneous Polyoxyethylene-Type Nonionic Surfactants in Quaternary Ammonium Salt-Type Gemini Ionic Liquids, 20 Mar. 2018, 20 Mar. 2018 - 23 Mar. 2018
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, 98th CSJ Annual Meeting (Nenkai), Surface Adsorption Behavior of Ionic Liquid and Surfactant in Three Components of Quaternary Ammonium Salt-Type Ionic Liquid / Surfactant / Water, 20 Mar. 2018, 20 Mar. 2018 - 23 Mar. 2018
  • Maiko Niki; Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, Behavior of Homogeneous Polyoxyethylene-Type Nonionic Surfactants in Quaternary Ammonium Salt-Type Gemini Ionic Liquids with Various Spacers, 24 Nov. 2017, 23 Nov. 2017 - 24 Nov. 2017
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, Surface Adsorption Behavior for Three Components of Quaternary Ammonium Salt-Type Ionic Liquid / Surfactant / Water, 24 Nov. 2017, 23 Nov. 2017 - 24 Nov. 2017
  • 8th International Symposium on Surface Science (ISSS-8), Surface Adsorption Behavior of Nonionic and Ionic Surfactants in Quaternary Ammonium Salt-type Ionic Liquids, 23 Oct. 2017, 22 Oct. 2017 - 26 Oct. 2017
  • Maiko Niki; Risa Kawai; Tomokazu Yoshimura, The 56th Annual Meeting of the Japan Oil Chemists' Society, Characteristics of Quaternary Ammonium Salt-Type Gemini Ionic Liquids Using Various Ethyleneamine Derivatives as Spacer and Their Properties in Aqueous Solution, 13 Sep. 2017, 11 Sep. 2017 - 13 Sep. 2017
  • Risa Kawai; Tomokazu Yoshimura, The 56th Annual Meeting of the Japan Oil Chemists' Society, Synthesis and Properties of Quaternary Ammonium Salt-Type Trimeric Amphiphilic Ionic Liquids, and Their Surface-Active Properties in Aqueous Solution, 11 Sep. 2017, 11 Sep. 2017 - 13 Sep. 2017
  • Maiko Niki; Risa Kawai; Shiho Yada; Tomokazu Yoshimura, The 68th Divisional Meeting on Colloid and Interface Chemistry, Properties of Homogeneous Polyoxyethylene-Type Nonionic Surfactant in Quaternary Ammonium Salt-Type Gemini Ionic Liquids with Various Spacers, 08 Sep. 2017, 06 Sep. 2017 - 08 Sep. 2017
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 68th Divisional Meeting on Colloid and Interface Chemistry, Surface Adsorption Behavior of Nonionic and Ionic Surfactants in Quaternary Ammonium Salt-Type Amphiphilic Ionic Liquid, 07 Sep. 2017, 06 Sep. 2017 - 08 Sep. 2017
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 97th Spring Annual Meeting of the Chemical Society of Japan, Unique Surface Adsorption Behavior of Nonionic Surfactant in Quaternary Ammonium Salt-type Ionic Liquid, 18 Mar. 2017, 16 Mar. 2017 - 19 Mar. 2017
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Suzuki Toshiyuki, The 97th Spring Annual Meeting of the Chemical Society of Japan, Development of Quaternary-Ammonium-Salt-Type Novel Amphiphilic Ionic Liquids, 16 Mar. 2017, 16 Mar. 2017 - 19 Mar. 2017
  • Shiho Yada; Risa Kawai; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, Homogeneous Polyoxyethylene-Type Nonionic Surfactant in Quaternary Ammonium Salt-Type Novel Ionic Liquid : Nano-Structure by Small-Angle X-ray Scattering, 25 Oct. 2016, 24 Oct. 2016 - 25 Oct. 2016
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, Homogeneous Polyoxyethylene-Type Nonionic Surfactant in Quaternary Ammonium Salt-Type Novel Ionic Liquid : Surface-Active Properties, 24 Oct. 2016, 24 Oct. 2016 - 25 Oct. 2016
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The Annual Technical Meeting 2016 of the Japan Society of Colour Material, Characteristics of Quaternary Ammonium Salt-Type Ionic Liquids with Adamantyl Group and Properties of Nonionic Surfactants in the Ionic Liquids, 13 Oct. 2016, 13 Oct. 2016 - 14 Oct. 2016
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 67th Divisional Meeting of Division of Colloid and Surface Chemistry, Surface Properties of Homogeneous Polyoxyethylene-Type Nonionic Surfactant in Quaternary Ammonium Salt-Type Novel Ionic Liquid, 24 Sep. 2016, 22 Sep. 2016 - 24 Sep. 2016
  • Maiko Niki; Risa Kawai; Tomokazu Yoshimura, The 55th Annual Meeting of the Japan Oil Chemists' Society, Synthesis and Properties of Gemini Ionic Liquids with Ethyleneamine Derivatives, 08 Sep. 2016, 07 Sep. 2016 - 09 Sep. 2016
  • Risa Kawai; Tomokazu Yoshimura, The 55th Annual Meeting of the Japan Oil Chemists' Society, Synthesis and Properties of Quaternary Ammonium Salt-Type Gemini Ionic Liquids with Adamantyl Group, 07 Sep. 2016, 07 Sep. 2016 - 09 Sep. 2016
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura; Satoru Hashimoto; Toshiyuki Suzuki, The 96th Spring Annual Meeting of the Chemical Society of Japan, Synthesis and Properties of Quaternary Ammonium Salt-type Gemini Ionic Liquids and Surface Active Properties of Homogeneous Nonionic Surfactant in the Ionic Liquid, 26 Mar. 2016, 24 Mar. 2016 - 27 Mar. 2016
  • Risa Kawai; Shiho Yada; Tomokazu Yoshimura, Synthesis and Properties of Quaternary Ammonium Salt-type Gemini Ionic Liquids and Their Surface Active Properties in Aqueous Solution, 27 Oct. 2015, 26 Oct. 2015 - 27 Oct. 2015
  • Risa Kawai; Tomokazu Yoshimura, The 54th Annual Meeting of the Japan Oil Chemists' Society, Synthesis and Properties of Quaternary Ammonium Salt-type Gemini Ionic Liquids with Short Alkyl Chains, 08 Sep. 2015, 08 Sep. 2015 - 10 Sep. 2015
  • Risa Kawai; Tomokazu Yoshimura, The 95th Spring Annual Meeting of the Chemical Society of Japan, Synthesis and Properties of Quaternary Ammonium Salt-Type Gemini Ionic Liquids, 27 Mar. 2015, 26 Mar. 2015 - 29 Mar. 2015

Awards

  • Sep. 2024
  • Mar. 2020
  • Mar. 2020

Industrial Property Rights

  • Patent right, 第四級アンモニウム塩型界面活性剤、及び組成物, 河合里紗; 吉村倫一, 特願2025-038747, 10 Mar. 2024

Research Projects

  • Grant-in-Aid for Scientific Research (B), 01 Apr. 2024 - 31 Mar. 2027, 24K01617, Study on novel functional IL/LiILBP hybrid membrane as pseudo-SEI film for negative electrode in aqueous media, 山田 裕久; 松本 充央; 伊藤 滋啓; 河合 里紗; 森永 隆志; 綱島 克彦, Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Nara National College of Technology, 18460000, 14200000, 4260000, kaken
    対象リソースIRI
  • Dec. 2024 - Mar. 2027, Principal investigator, 環境負荷低減を目指したアミノ糖由来の新規両親媒性イオン液体の開発, 公益財団法人 コーセーコスメトロジー研究財団, 2024年度 コスメトロジー研究助成, 奈良国立大学機構 奈良女子大学
  • Apr. 2025 - Mar. 2026, Principal investigator, 環境負荷低減型両親媒性イオン液体を用いた抽出・可溶化剤の開発, 河合里紗, 公益財団法人 八洲環境技術振興財団, 2024年度 研究開発・調査助成
  • Apr. 2025 - Mar. 2026, Principal investigator, 種々の疎水鎖骨格を導入した環境負荷低減型両親媒性イオン液体の創製, 公益財団法人 ENEOS東燃ゼネラル研究奨励・奨学会, 第44回（2024年度）研究奨励助成, 奈良国立大学機構 奈良女子大学
  • Apr. 2024 - Mar. 2025, Principal investigator, 界面化学的手法を用いた環境負荷低減型カチオン界面活性剤の抗菌メカニズムの解明, 河合里紗; 矢田詩歩; 吉村倫一, 文部科学省化学技術人材育成費補助事業「ダイバーシティ研究環境実現イニシアティブ（女性リーダー育成型）」, 奈良女子大学男女共同参画機構 みかさプログラム 大型共同研究支援経費, 奈良女子大学
  • Apr. 2024 - Mar. 2025, Principal investigator, 多分岐鎖型を有するポリオキシエチレン系非イオン界面活性剤を用いた可溶化挙動の解明, 河合里紗, 文部科学省化学技術人材育成費補助事業「ダイバーシティ研究環境実現イニシアティブ（女性リーダー育成型）」, 奈良女子大学男女共同参画機構 みかさプログラム 新規採用女性教員スタートアップ支援, 奈良女子大学
  • Jul. 2024 - Jan. 2025, Principal investigator, Development of Environmentally Friendly Cationic Surfactants with Sugar as Counterion, 河合里紗, マイクロン・テクノロジー財団, 奈良女子大学マイクロン科学技術研究助成, 奈良女子大学
  • 一般課題, Nov. 2024, 2024B1542, Principal investigator, アミノ酸を対イオンに有する四級アンモニウム塩系ジェミニ型界面活性剤が形成する集合体の構造解析, 公益財団法人高輝度光科学研究センター, SPring-8 利用研究課題, 奈良女子大学
  • Apr. 2023 - Mar. 2024, Principal investigator, Development of Novel Cationic Gemini Surfactants Friendly to Humans and the Environment, 河合里紗, 公益財団法人 東海産業技術振興財団, 2023年度単年度研究助成
  • Oct. 2021 - Sep. 2023, Principal investigator, Development of Antibacterial and Antibiofilm Agents Using Quaternary-Ammonium-Salt-Type Gemini Ionic Liquid Polymers, Risa Kawai; Hideyuki Kanematsu, 公益財団法人泉科学技術振興財団, 2021年度研究助成
  • Apr. 2022 - Mar. 2023, Principal investigator, 次世代型カチオン界面活性剤を用いた抗菌メカニズムの解明, 河合里紗, 公益財団法人 池谷科学技術振興財団, 2022年度単年度研究助成
  • Apr. 2022 - Mar. 2023, Principal investigator, Development of Low Toxicity Cationic Surfactants for Antibacterial and Antiviral Agents, 河合里紗, 公益財団法人 岡三加藤文化振興財団, 令和4年度（第35回）研究助成
  • Oct. 2019 - Oct. 2019, 2019B1782, Principal investigator, Structural Analysis of Aggregates of Quaternary-Ammonium-Salt-Type Novel Ionic Liquids, Risa Kawai; Tomokazu Yoshimura, Japan Synchrotron Radiation Research Institute, 大学院生提案型課題, Large Synchrotron Radiation Facility, SPring-8

■Ⅲ．社会連携活動実績

１．公的団体の委員等（審議会、国家試験委員、他大学評価委員，科研費審査委員等）

  • 日本油化学会, 第63回日本油化学会年会, プログラム実行委員, Apr. 2025 - Mar. 2026, Society