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Affiliation |
Faculty of Environment and Information Sciences, Division of Artificial Environment and Information |
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Job Title |
Professor |
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Research Fields, Keywords |
gel, micro emulsion, cosmetics, solubilization, surfactant, washing, emulsion, complex fluid, molecular self-assembly |
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Related SDGs |
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ARAMAKI Kenji
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ORCID
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 Journal of Oleo Science 2022.08
【Published Thesis】 Effect of Adding Lecithin and Nonionic Surfactant on alpha-Gels Based on a Cationic Surfactant-Fatty Alcohol Mixture(JOURNAL OF OLEO SCIENCE) 2021.01
【Published Thesis】 Formulation of Bicelles Based on Lecithin-Nonionic Surfactant Mixtures 2020.07
【Published Thesis】 Hydrogelation with a water-insoluble organogelator - surfactant mediated gelation (SMG) 2019.11
【Published Thesis】 Rheological properties of silicone-surfactant-based wormlike micellar solution 2019.11
Education 【 display / non-display 】
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-1999
Yokohama National University Doctor Course Unfinished Course
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-1995
Yokohama National University Division of Material Science and Chemical Engineering Graduated
Degree 【 display / non-display 】
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Doctor of Engineering - Yokohama National University
Campus Career 【 display / non-display 】
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2020.4
Duty Yokohama National UniversityFaculty of Environment and Information Sciences Division of Artificial Environment and Information Professor
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2007.4-2020.3
Duty Yokohama National UniversityFaculty of Environment and Information Sciences Division of Artificial Environment and Information Associate Professor
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2005.10-2007.3
Duty Yokohama National UniversityResearch Institute of Environment and Information Sciences Division of Artificial Environment and Information Associate Professor
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2001.4-2005.9
Duty Yokohama National UniversityResearch Institute of Environment and Information Sciences Division of Artificial Environment and Information Research Assistant
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1999.4-2001.3
Duty Yokohama National UniversitySchool of Engineering Research Assistant
Academic Society Affiliations 【 display / non-display 】
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American Chemical Society
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Chemical Society of Japan
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Japan Oil Chemist's Society
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The Society of Chemical Engineers
Research Areas 【 display / non-display 】
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Nanotechnology/Materials / Organic functional materials
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Nanotechnology/Materials / Functional solid state chemistry
Books 【 display / non-display 】
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低分子ゲル・超分子ゲルの設計開発と応用
荒牧賢治（ Role： Joint author , 界面活性剤媒介ゲル化（SMG）法によるオルソゴナルハイドロゲル形成）
シーエムシー出版 （ ISBN:978-4-7813-1749-6 ） [Reviewed]
Responsible for pages：79-86 Language：English Book type：Scholarly book
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化学便覧 基礎編 改訂6版
荒牧賢治（ Role： Contributor , 曇点）
丸善 （ ISBN:978-4-621-30521-8 ） [Reviewed]
Language：Japanese Book type：Scholarly book
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第４版 現代界面コロイド化学の基礎
荒牧賢治，他（ Role： Contributor）
丸善出版 （ ISBN:978-4-621-30291-0 ）
Total pages：548 Responsible for pages：54-61 Language：Japanese Book type：Scholarly book
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Encyclopedia of Biocolloid and Biointerface Science
Hiroyuki Ohshima et al.（ Role： Joint author）
Wiley （ ISBN:978-1-118-542 ）
Total pages：1200 Responsible for pages：1144-1150 Language：English Book type：Scholarly book
Thesis for a degree 【 display / non-display 】
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界面活性剤を含む多成分系の相挙動とマイクロエマルションに関する研究
荒牧 賢治
2003.3
Doctoral Thesis Single Work
Papers 【 display / non-display 】
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Effect of Micellar Shape on Viscoelastic Behavior and Gel Network Structure of Hydrogel Formed by Surfactant-mediated Gelation Using Glutamic-acid- based Organogelator
Naoaki Ikeda, Kenji Aramaki
Journal of Oleo Science 72 ( 6 ) 613 - 621 2023.6 [Reviewed]
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Single Work
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Self-Assemblies and Phase Behavior
Aramaki Kenji
Oleoscience 23 ( 1 ) 37 - 41 2023
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Oil Chemists' Society Single Work
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Hydrogel Formation by Glutamic-acid-based Organogelator Using Surfactant-mediated Gelation
Ikeda Naoaki, Aramaki Kenji
Journal of Oleo Science 71 ( 8 ) 1169 - 1180 2022.8 [Reviewed]
DOI Web of Science PubMed CiNii Research
Authorship：Last author Language：English Publishing type：Research paper (scientific journal) Publisher：公益社団法人 日本油化学会 Joint Work
<p>Hydrogels formed by low-molecular-weight gelators have reversible sol-gel transition and responsiveness to various stimuli, and are used in cosmetics and drug applications. It is challenging to obtain hydrogels using novel gelators because subtle differences in their molecular architecture affect gelation. Organogelators (which form organogels) are insoluble in water, and their use as hydrogelators has not previously been considered. However, a surfactant-mediated gelation method was reported in which organogelators were solubilized in water by surfactants to form hydrogels using 12-hydroxyoctadecanoic acid. To investigate whether this method can be applied with other organogelators, the formation of hydrogel using a glutamic-acid-based organogelator was studied here. Hydrogels were formed by solubilizing 1:1 mixtures of glutamate-based organogelators, N-lauroyl-L-glutamic acid dibuthylamide, and N-2-ethylhexanoyl-L-glutamic acid dibutylamide in aqueous micellar solutions of anionic surfactant (sodium lauroyl glutamate) and cationic surfactant (cetyltrimethylammonium chloride). The minimum gelation concentration of the hydrogel was ~0.2-0.6 wt%. By changing the molar fraction of cetyltrimethylammonium chloride in the mixed surfactant, either spherical or wormlike micelles were formed. The hydrogel with wormlike micelles had a higher sol-gel transition temperature than that with spherical micelles and formed fine self-assembled fibrillar networks. Additionally, the hydrogel with the spherical micelles was elastic, whereas that with wormlike micelles was viscoelastic, suggesting that networks of the organogelators and wormlike micelles coexisted in the hydrogel from the wormlike micellar solution. Moreover, the hydrogel suppressed the reduction in the storage modulus at higher temperatures compared with the micellar aqueous solution, indicating that the elastic properties of the organogelator networks were maintained at high temperatures. The gel fibers of the hydrogel partially formed a loosely aggregated structure as the temperature increased, the fibers bundled via hydrophobic interactions, and new cross-linking points formed spontaneously. This phenomenon corresponded with an inflection point in the temperature-dependent storage modulus of the hydrogel.</p>
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Cation Effect on the Binary and Ternary Phase Behaviors of Double-Tailed Methanesulfonate Amphiphiles
Ontiveros Jesus F., Hong Bing, Aramaki Kenji, Pierlot Christel, Aubry Jean-Marie, Nardello-Rataj Ve … Show more authors
Ontiveros Jesus F., Hong Bing, Aramaki Kenji, Pierlot Christel, Aubry Jean-Marie, Nardello-Rataj Veronique Hide authors
JOURNAL OF SURFACTANTS AND DETERGENTS 2021.2 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Aramaki Kenji, Matsuura Yuka, Kawahara Katsuki, Matsutomo Daisuke, Konno Yoshikazu
JOURNAL OF OLEO SCIENCE 70 ( 1 ) 67 - 76 2021.1 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：公益社団法人 日本油化学会 Joint Work
<p>α-Gels are often used as base materials for cosmetics and hair conditioners. α-Gel-based commercial products typically contain many types of additives, such as polymers, electrolytes, oily components, and other surfactants, in addition to the three basic components. However, few systematic studies have been conducted on the effect of such additives on α-gels. In this study, we chose surfactant as an example to initiate the effect of such additives on the structure and rheological properties of α-gel samples formulated using cetyl alcohol (C<sub>16</sub>OH) and cetyltrimethylammonium chloride (CTAC). Optical microscopy analysis demonstrated that the size of the vesicles in the α-gel samples in this study was decreased via the addition of hydrogenated soybean lecithin (HSL) and penta(oxyethylene) cetyl ether (C<sub>16</sub>EO<sub>5</sub>), a nonionic surfactant, to them. Rheological measurements revealed that at high C<sub>16</sub>OH/CTAC ratios, the viscosity and yield stress of the α-gel samples decreased owing to the addition of surfactants to them. Conversely, at low C<sub>16</sub>OH/CTAC ratios, the opposite tendency was observed. Small-angle X-ray scattering analysis indicated that for the α-gel samples with high C<sub>16</sub>OH/CTAC ratios, the addition of HSL or C<sub>16</sub>EO<sub>5</sub> to them decreased the interlayer spacing of their lamellar bilayer stack, which led to the changes in the rheological properties of the α-gel samples.</p>
Other Link： https://ci.nii.ac.jp/naid/130007966427
Review Papers 【 display / non-display 】
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Formulation of Orthogonal Hydrogels by Surfactant Mediated Method
Accounts of Materials & Surface Research 8 ( 2 ) 90 - 97 2023.1 [Reviewed] [Invited]
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media) Single Work
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Self-Assemblies and Phase Behavior
23 ( 1 ) 37 - 41 2023.1
Authorship：Lead author, Corresponding author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Single Work
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ひも状ミセルの形成と増粘・ゲル化
荒牧賢治
科学と工業 94 ( 9 ) 256 - 263 2020.9 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other) Publisher：一般社団法人 大阪工研協会 Single Work
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Wormlike Micellar Formation by Using Surfactant Derived From Renewable Resources
Accounts of Materials&Surface Research 2018.10 [Reviewed] [Invited]
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other) Joint Work
Shape of surfactant micelles may change to spherical, rod-like, or wormlike micelle depending on the surfactant concentration in the aqueous solution and the hydrophilic-lipophilic balance. Wormlike micelles entangle like polymer chains and increase the viscosity of the solution. Solution viscosity may reach up to 10 million times the viscosity of water. In addition, such a thickened solution becomes a non-Newtonian viscoelastic body exhibiting thixotropy and a Maxwell-type relaxation behavior having a single relaxation time like a polymer solution. Unlike polymer, wormlike micelles, which are supramolecular assembly systems, has self-repairing ability against chain breaking due to mechanical disturbance by mechanical force, heat, light, etc. Because of these characteristics, wormlike micelles are used for viscosity control in detergents (e.g. shampoo) and cement as well as fluid transport by drag reduction (DR) effect. Petroleum-based surfactants are conventionally used in these applications, but the use of surfactants derived from renewable resources (bio-based surfactant) is demanded from the viewpoint of appeal to consumers as well as environmental problems. In this review, some examples of wormlike micelle formation from our studies are briefly described. Bio-based surfactants used are commercially-available ones such as acyl glutamate, sucrose fatty acid ester, polyoxyethylene cholesteryl ether in addition to a newly developed surfactant, isosorbide-based surfactant.Shape of surfactant micelles may change to spherical, rod-like, or wormlike micelle depending on the surfactant concentration in the aqueous solution and the hydrophilic-lipophilic balance. Wormlike micelles entangle like polymer chains and increase the viscosity of the solution. Solution viscosity may reach up to 10 million times the viscosity of water. In addition, such a thickened solution becomes a non-Newtonian viscoelastic body exhibiting thixotropy and a Maxwell-type relaxation behavior having a single relaxation time like a polymer solution. Unlike polymer, wormlike micelles, which are supramolecular assembly systems, has self-repairing ability against chain breaking due to mechanical disturbance by mechanical force, heat, light, etc. Because of these characteristics, wormlike micelles are used for viscosity control in detergents (e.g. shampoo) and cement as well as fluid transport by drag reduction (DR) effect. Petroleum-based surfactants are conventionally used in these applications, but the use of surfactants derived from renewable resources (bio-based surfactant) is demanded from the viewpoint of appeal to consumers as well as environmental problems. In this review, some examples of wormlike micelle formation from our studies are briefly described. Bio-based surfactants used are commercially-available ones such as acyl glutamate, sucrose fatty acid ester, polyoxyethylene cholesteryl ether in addition to a newly developed surfactant, isosorbide-based surfactant.
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荒牧賢治
色材協会誌 89 ( 3 ) 98 - 101 2016.3
Language：Japanese Publishing type：Other Publisher：色材協会 Single Work
界面活性剤の機能性は表界面への吸着と分子集合体形成による。界面活性剤の水中での濃度上昇とともにミセルやリオトロピック液晶が形成され，相平衡図中であらわすことが一般的である。界面活性剤濃厚系で形成されるリオトロピック液晶の構造はおもに界面活性剤の集合体中での充填形態によって決まる。非イオン界面活性剤であるポリ（オキシエチレン）アルキルエーテルではポリ（オキシエチレン）鎖の重合度を変化させると親水基間の反発力が変化しリオトロピック構造の変化が生じ，その構造変化は臨界充填パラメーターによって説明できる。リオトロピック液晶はメソ多孔体合成やDDSキャリアなどに用いることができる。また，希薄系で形成されるミセルの形状も親水基間の反発力に応じて変化する。とくにひも状ミセルと呼ばれる高分子鎖のように伸びたミセルは系の増粘をもたらし，DR剤や泡沫安定化剤などに利用される。
Other Link： https://www.jstage.jst.go.jp/article/shikizai/89/3/89_98/_article/-char/ja
Industrial Property Rights 【 display / non-display 】
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液滴分散液の製法
奥山邦人, 國枝博信, 荒牧賢治, 飯田嘉宏
Application no：2004-68457 Date applied：2004.3
Announcement no：2005-254124 Date announced：2005.9
Country of applicant：Domestic
Awards 【 display / non-display 】
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油脂技術論文優秀賞
2017.2 一般財団法人油脂工業会館 α-スルホ脂肪酸メチルエステルナトリウム塩結晶の脆性に与える温・湿度履歴の影響
Individual or group name of awards：渡辺英明，森垣篤典，荒牧賢治
Grant-in-Aid for Scientific Research 【 display / non-display 】
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オルソゴナルハイドロゲルの機械的特性に及ぼす異種分子集合体ネットワークの相乗効果
Grant number：23K04531 2023.4 - 2026.3
日本学術振興会 Grant-in-Aid for Scientific Research(C)
Investigator(s)：荒牧賢治
Authorship：Principal investigator Grant type：Competitive
生体系が有する優れた機能性と形態安定性に学び，ソフト性の高い界面活性剤分子集合体のしなやかなネットワークと機械的強度に優れた超分子ファイバーの剛直なネットワークが共存したオルソゴナルハイドロゲルを構築する。界面活性剤集合構造の違いによるオルソゴナルハイドロゲル中の超分子ファイバーの形成速度，サイズ，ネットワーク密度への影響を解明し，ゲルの機械的特性との関係を明らかにする。さらに，異種の分子集合体ネットワークの共存によるゲルの機械的特性に対する相補的，相乗的効果の発現を目指す。これらにより医薬品・化粧品などの基剤に有用なソフトマターの構築を行い，分子集合系科学の発展に貢献することを目指す。
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オルソゴナル自己集合系ソフトマターの構築
2018.4 - 2021.3
科学研究費補助金 Grant-in-Aid for Scientific Research(C)
Investigator(s)：荒牧賢治
Grant type：Competitive
細胞が有する優れた機能性と形態安定性に学び，薬物送達システムやナノ材料開発に有用な界面活性剤・脂質などの両親媒性分子集合体のソフト性を保持したまま，超分子繊維状集合体により機械的特性強化を行ったソフトマターをワンステップで異なる集合構造を同時に形成・共存させるオルソゴナル自己集合により形成させる。多様な構造の界面活性剤・脂質の分子集合構造（ミセル，リオトロピック液晶，ベシクル、ナノディスク）に超分子ゲル化剤の繊維状構造を組み合わせたゲル（液晶ゲル・液晶ナノ粒子ゲル）と微粒子状ゲル（ゲルボール）の最適形成条件，構造の解明および機能性開発を行う。これにより新しいボトムアップ型ナノ構造ソフトマターの構築を行うことができるのみならず，多様な分子間力が同時に働くことで異なるナノ構造が同時形成されるメカニズムについて理解が深まり，自己集合・自己組織化の科学の新境地を拓くことが期待できる。
Other external funds procured 【 display / non-display 】
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界面活性剤溶液の溶液物性測定
2018.4 - 2020.3
Investigator(s)：荒牧賢治
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アシルアミノ酸系界面活性剤の界面化学的挙動に関する研究
2018.4 - 2020.3
Investigator(s)：荒牧賢治
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新規生物資源利用界面活性剤によるソフトマテリアル
2017.4 - 2019.3
二国間交流事業 共同研究
Investigator(s)：荒牧賢治
再生可能資源由来原料であるイソソルバイドを利用したグリーンサーファクタントの合成とその分子集合体構造制御について研究を行うことを目的とする。廃棄物のトウモロコシデンプンからイソソルバイドおよびその誘導体を合成する研究を行っているフランス側と界面活性剤の分子集合体構造制御の研究を行っている日本側で日仏共同研究として実施する。医薬品・化粧品や一般化学品に有用な分子集合体を利用したソフトマテリアル（ゲル、マイクロカプセル）の構築を行い、再生可能原料の利用促進に資する基盤素材を提供することができる。
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ひも状ミセルと両親媒性高分子による溶液増粘挙動に対する協同効果
2014.6 - 2015.3
学術研究奨学事業
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紫外線吸収剤を内包したO/I1型ゲルエマルションの調製
2013.4 - 2014.9
第２４回（平成２５年度）研究助成
Investigator(s)：荒牧賢治
Presentations 【 display / non-display 】
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Structure and Properties of Orthogonal Hydrogels Formed by Surfactant Mediated Gelation (SMG)
Kenji Aramaki [Invited]
9th Asian Conference on Colloid and Interface (ACCIS 2023)
Event date： 2023.12
Language：English Presentation type：Oral presentation (invited, special)
Country：Hong Kong
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Effects of Different Low-molecular-weight Organogelators on the Physical Properties of Hydrogels by Surfactant-mediated Gelation (SMG)
Maki Funaki, Kenji Aramaki
9th Asian Conference on Colloid and Interface (ACCIS 2023)
Event date： 2023.12
Language：English Presentation type：Poster presentation
Country：Hong Kong
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Effect of Carbon Chain Length on α-Gel Structure and Physical Properties in Cationic Surfactant-Fatty Alcohol Mixtures
Mayu Kodaka, Kenji Aramaki
9th Asian Conference on Colloid and Interface (ACCIS 2023)
Event date： 2023.12
Language：English Presentation type：Poster presentation
Country：Hong Kong
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Variation of Fiber Structure by Degree of Neutralization of Sodium N-Lauroylglycine in Aqueous Media
Asuka Tamabayashi, Kenji Aramaki
9th Asian Conference on Colloid and Interface (ACCIS 2023)
Event date： 2023.12
Language：English Presentation type：Poster presentation
Country：Hong Kong
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水/非イオン界面活性剤/リンゴ酸ジイソステアリル系の転相温度
荒牧賢治，鈴木諒大，花田奈穂子，竹谷俊亮，斎田利典，加知久典，大山慶一
第74回コロイドおよび界面化学討論会 2023.9 日本化学会コロイドおよび界面化学部会
Event date： 2023.9
Language：Japanese Presentation type：Oral presentation (general)
Venue：信州大学
Past of Collaboration and Commissioned Research 【 display / non-display 】
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化粧品用ゲルの物性測定と構造解析
Funded Research offered by Enterprises
Project Year： 2018.4 - 2019.3
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界面活性剤溶液の溶液物性測定
Funded Research offered by Enterprises
Project Year： 2018.4 - 2019.3
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Construction of soft matters based on orthogonal self-assembled systems
Offer organization: University of Stuttgart International Cooperative Research
Project Year： 2018.4 - 2019.3
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Improvement of mechanical strength of wormlike micellar gel by cellurose nanofiber
Offer organization: Chalmers University of Technology International Cooperative Research
Project Year： 2018.4 - 2019.3
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Soft materials based on new bio-based surfactants
Offer organization: National Graduate School of Engineering Chemistry of Lille International Cooperative Research
Project Year： 2017.4 - 2019.3
Charge of on-campus class subject 【 display / non-display 】
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2024 Design Engineering of Environmental Material Ⅱ
Interfaculty Graduate School of Innovative and Practical Studies
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2024 Design Engineering of Environmental Material Ⅰ
Interfaculty Graduate School of Innovative and Practical Studies
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2024 Material/Life and Environment
Interfaculty Graduate School of Innovative and Practical Studies
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2024 Seminar in Advanced Physical Chemistry of Functional Solutions
Graduate School of Environment and Information Sciences
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2024 Excersize of Environmental Material Design IV
Graduate School of Environment and Information Sciences
Charge of off-campus class subject 【 display / non-display 】
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先端化学大学院特別講義
2023.11 Institution：東京理科大学
Level：Postgraduate
界面活性剤分子集合体
Committee Memberships 【 display / non-display 】
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ISO/TC91 Working Group 1: Analytical Methods
2009.11 - 2017.6 Convenor
Committee type：Other
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ISO/TC91国内審議委員会
2006.9 委員
Committee type：Other
Social Contribution(Extension lecture) 【 display / non-display 】
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日本油化学会 界面実践講座 2018
Role(s)： Lecturer
公益社団法人 日本油化学会 油脂工業会館9階会議室 2018.7
Audience： University students, Graduate students, Researchers, Scientific organization, Company
Type：Newspaper, magazine
処方設計のための多成分界面活性剤混合溶液の理解
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界面コロイドラーニング 第 34 回現代コロイド・界面化学基礎講座
Role(s)： Lecturer
日本化学会 コロイドおよび界面化学部会 化学会館 2018.5
Audience： University students, Graduate students, Researchers, Scientific organization, Company
Type：Seminar, workshop
2章 界面活性剤:基礎からの界面活性剤
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平成２８年度免許状更新講習 コロイド界面科学と環境
Role(s)： Lecturer, Planner
横浜国立大学 横浜国立大学 2016.8
Audience： Teachers
Type：Certification seminar
異なる気体、液体、固体同士が接する界面における現象を理解する学問である界面科学とその関連分野であるコロイド科学の一端を解説し、コロイド界面科学が関わる自然環境および人工環境における様々な問題を事例をあげながら解説します。
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横浜国立大学平成25年度公開講座 身の回りの化学と物理
Role(s)： Lecturer, Planner
横浜国立大学 横浜国立大学環境情報１号棟 2013.8
Audience： High school students, University students, Graduate students, Researchers, General public, Company
Type：Extension Lecture
スマホやタブレットに使われているタッチパネル、森の枯れ木や枯れ葉の中に住んでいる粘菌の不思議な動き、女性には欠かせない化粧品について、仕組みと面白さの背後にある化学・物理を分かりやすく解説します。