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Kojima T, Noguchi Y, Terasaka K, Asakura K, Banno T. Engineering pH-Responsive, Self-Healing Vesicle-Type Artificial Tissues with Higher-Order Cooperative Functionalities. Small 2024:e2311255. [PMID: 38415816 DOI: 10.1002/smll.202311255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/30/2024] [Indexed: 02/29/2024]
Abstract
Multicellular organisms demonstrate a hierarchical organization where multiple cells collectively form tissues, thereby enabling higher-order cooperative functionalities beyond the capabilities of individual cells. Drawing inspiration from this biological organization, assemblies of multiple protocells are developed to create novel functional materials with emergent higher-order cooperative functionalities. This paper presents new artificial tissues derived from multiple vesicles, which serve as protocellular models. These tissues are formed and manipulated through non-covalent interactions triggered by a salt bridge. Exhibiting pH-sensitive reversible formation and destruction under neutral conditions, these artificial vesicle tissues demonstrate three distinct higher-order cooperative functionalities: transportation of large cargoes, photo-induced contractions, and enhanced survivability against external threats. The rapid assembly and disassembly of these artificial tissues in response to pH variations enable controlled mechanical task performance. Additionally, the self-healing property of these artificial tissues indicates robustness against external mechanical damage. The research suggests that these vesicles can detect specific pH environments and spontaneously assemble into artificial tissues with advanced functionalities. This leads to the possibility of developing intelligent materials with high environmental specificity, particularly for applications in soft robotics.
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Affiliation(s)
- Tomoya Kojima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan
| | - Yutaro Noguchi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan
| | - Koichi Terasaka
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522, Japan
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2
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Banno T, Ueno K, Kojima T, Asakura K. Induction for Self-Propelled Motion of Artificial Objects with/without Shape Anisotropy. J Oleo Sci 2024; 73:509-518. [PMID: 38556285 DOI: 10.5650/jos.ess23210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024] Open
Abstract
Motion is an essential feature of living systems. Microorganisms autonomously change their nature in response to slight changes in the surrounding environment induced by external stimuli and exhibit unique motion modes. Various self-propelled objects have been constructed to understand these behaviors. Towards achievement of such purpose, the precise settings of experimental conditions including fabrication of objects with a shape anisotropy have been made attempts in the field of active matter and supramolecular chemistry. This review describes the recent progress in inducing the self-propelled motion of artificial objects. If life-like dynamic behavior such as self-propelled motion can be designed and experimentally induced from molecular properties, it will be easier to control functions expressed as outputs. This will lead to not only a better understanding of the complex functions in living systems, but also the fabrication of exotic materials with life-like properties.
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Affiliation(s)
- Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Kazuki Ueno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Tomoya Kojima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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3
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Fujishiro M, Yahagi S, Kuroda A, Banno T, Asakura K. Investigation on the Validity of in vitro Sun Protection Factor and Ultraviolet-A Protection Factor Evaluation Method for Sunscreen Samples. J Oleo Sci 2024; 73:603-610. [PMID: 38556293 DOI: 10.5650/jos.ess23224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024] Open
Abstract
Factors affecting the in vitro Sun Protection Factor (SPF) and Ultraviolet-A Protection Factor (UVA-PF) of sunscreens were analyzed for verifying the validity and reliability of the ISO24443 evaluation method. UV absorbance measurements by different spectrophotometers did not lead to the large difference in in vitro SPF/UVA-PF, although the UV absorbance determined by each spectrophotometer exhibited relatively large difference when it was larger than 2. On the other hand, relatively large difference was found in in vitro SPF/UVA-PF by utilizing European Cosmetic and Perfumery Association (Colipa) 1994 or UV-solar simulated radiation (UV-SSR) for the spectral irradiance. Appropriateness of employing the coefficient of adjustment for the determination of in vitro UVA-PF was also found to be reexamined.
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Affiliation(s)
- Miyuki Fujishiro
- New Business Promotion Division, Nikoderm Research Inc
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
| | - Shoichi Yahagi
- Nikko Chemicals Co., Ltd
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
| | - Akihiro Kuroda
- Yokohama Research Center, Kuroda Consulting Inc
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
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4
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Aizawa A, Sumita R, Banno T, Asakura K. Spot Overtaking of Dyes of Their Chromatographic Development Associated with Solvent Evaporation. J Oleo Sci 2024; 73:593-601. [PMID: 38556292 DOI: 10.5650/jos.ess23235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024] Open
Abstract
Infiltration of binary solution of hexane and ethanol into chromatography paper associated with their evaporation was found to generate unexpected initial rapid advancement of wicking front followed by its receding and readvancing in our previous research. In the present study, paper chromatography development of hydrophobic dye, Sudan III, and hydrophilic dye, Acid Blue 9, was carried out using binary solutions of hexane and ethanol in open environment, allowing the developing solvent been evaporated. Sudan III was developed with initial rapid advancing wicking front, while Acid Blue 9 was scarcely developed. On the other hand, Acid Blue 9 was developed with the readvancing second wicking front, while the spot of Sudan III scarcely migrated. Thus, the unexpected illusional phenomenon, overtaking the spot of Sudan III by the spot of Acid Blue 9, was observed. The readvancement of the second wicking front was found to be enhanced as increasing the relative humidity in the environment. Surface temperature of the chromatography paper was measured during the chromatographic development in open environment to show that it became lower than the dew point when the experiments were carried out in relatively high humidity. Solubility of Sudan III in a binary solution of ethanol and water remarkably decreased as increasing the content of water. It was thus suggested that the water vapor condensation to induce water mixing into the mobile phase to decrease the solubility of Sudan III to inhibit its chromatographic development to realize the illusional spot overtaking of dyes of their chromatographic development associated with solvent evaporation.
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Affiliation(s)
- Amiko Aizawa
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Rina Sumita
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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5
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Aizawa A, Banno T, Asakura K. Bifurcation and Transposition of the Wicking Front of Binary Solutions Infiltrating into Chromatography Paper Associated with Their Evaporation. Langmuir 2023; 39:16731-16739. [PMID: 37963320 PMCID: PMC10688430 DOI: 10.1021/acs.langmuir.3c01767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 11/16/2023]
Abstract
Nonequilibrium fluid patterns, such as Marangoni contraction, coffee rings, and tears of wine, are generated in binary solutions spread on a substrate during their evaporation. In this study, we observed another type of nonequilibrium behavior exhibited by binary solutions as they infiltrate porous materials and undergo evaporation. A binary solution comprising hexane and ethanol was brought into contact with the chromatography paper to facilitate infiltration into the paper's pores. Because the experimental setup was in an open environment, infiltration and evaporation occurred simultaneously. The wicking front exhibited an initial rapid advancement, followed by subsequent receding and readvancing. Additionally, the bifurcation of the wicking front after the onset of its readvancement was confirmed by monitoring the temporal evolution of the spatial luminance distribution and temperature distribution on the surface of the chromatography paper. Chromatographic development of a hydrophilic dye was conducted in this experimental setup in an open environment. Additionally, it was confirmed that the receding and readvancing of the wicking front represented the transposition of the bifurcated wicking fronts.
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Affiliation(s)
- Amiko Aizawa
- Department of Applied Chemistry, Faculty
of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty
of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty
of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan
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Takekawa S, Ohara M, Banno T, Asakura K. Factors to control the alignment of surface-treated titanium dioxide powders to maximize performance of sunscreens. Int J Cosmet Sci 2023; 45:38-49. [PMID: 36121393 DOI: 10.1111/ics.12816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/18/2022] [Accepted: 08/24/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Titanium dioxide powders are contained in a large class of colour cosmetics and sunscreen formulas. When they are used, the formation of a uniform functional powder layer on the skin is an important factor to show their functionality, such as aesthetic and UV protection. Attempts were made to extract the factors that affect the UV shielding ability of the deposited powder layer. METHODS Seven kinds of surface treatments were conducted on nano-sized titanium dioxide powder to modify the surface characteristics. Dispersion samples were prepared by mixing these powders with liquids, such as mixed solutions of cyclopentasiloxane, isododecane, coconuts alkane and dimethicone using a disperser and a bead mill. The dispersions were applied using an applicator on cellulose triacetate film, polycarbonate film and polymethyl pentene film. Laser microscope observation and micro-gloss glossmeter analysis were carried out to assess the flatness of the deposited powder layers, and the UV shielding ability was evaluated using SPF analyser. RESULTS Factors whose influences on the structure and UV shielding ability of the deposited powder layer being analysed were pseudo-HLB of the powders, liquids for preparing the dispersions and material of the substrates. Higher UV shielding ability was attained when powders having pseudo-HLB at around 6 were employed independent from the kinds of liquids and substrates. Flatness of the deposited layer was found to enhance the UV shielding ability of the UV-B region, while that of the UV-A region was scarcely influenced by the flatness. Employing lower surface tension liquids for preparing the dispersions and materials exhibiting lower polar components of surface free energy as substrates tended to enhance the UV shielding ability. CONCLUSION Surface treatments conducted on the powders in this study were found to change UV shielding ability, especially UV-B shielding ability, and the relation between pseudo-HLB and UV shielding ability was scarcely influenced by the kinds of liquids. Both surface tension of liquids and the polar component of surface free energy of substrates affected the UV shielding ability. It was suggested that pseudo-HLB calculated based on chemical structure becomes useful information to choose optimum surface treatment to make uniform powder alignment independent from the surrounding environment.
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Affiliation(s)
- Shoji Takekawa
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Miwa Ohara
- Research and Development, Miyoshi America Inc., Dayville, Connecticut, USA
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Japan
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Kaburagi M, Kojima T, Asakura K, Banno T. pH-Sensitive Controlled Motion of Micrometer-sized Oil Droplets in a Solution of Surfactants Containing Fumaric Acid Derivatives. J Oleo Sci 2022; 71:1319-1326. [PMID: 35965092 DOI: 10.5650/jos.ess22129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Self-propelled droplets are of considerable interest as an appropriate model for understanding the self-propulsion of objects in the fields of nonequilibrium physics and nonlinear science. Several research groups have reported the monodirectional motion of droplets, that is, chemotaxis, using stimuli-responsive materials. However, the precise control of chemotaxis remains challenging from the perspective of synthetic chemistry because chemotactic motion is primarily induced by the consumption of reactive oil or surfactants. Herein, we report a chemical system containing pH-responsive fumaric acid derivatives, in which the oil droplet exhibited positive chemotaxis over a wide pH range-from basic to acidic conditions. From the measurements of the interfacial tension between the oil and aqueous phases, it was deduced that the positive chemotaxis was due to heterogeneity in the interfacial tension of the droplet surface, which was accompanied by the production of surface-active compounds in the pH gradient in a linear-type channel.
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Affiliation(s)
- Mari Kaburagi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Tomoya Kojima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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Kondo T, Yasui C, Miyajima I, Banno T, Asakura K, Fukuoka T, Ushimaru K, Koga M, Saika A, Morita T, Takahashi Y, Hayashi C, Igarashi M, Takahashi D, Toshima K. Synthesis of Mannosylerythritol Lipid Analogues and their Self‐Assembling Properties, Recovery Effects on Damaged Skin Cells, and Antibacterial Activity. Chemistry 2022; 28:e202201733. [DOI: 10.1002/chem.202201733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Takanori Kondo
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Chihiro Yasui
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Ikkei Miyajima
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Taisuke Banno
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kouichi Asakura
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Tokuma Fukuoka
- Research Institute for Sustainable Chemistry National Institute of Advanced Industrial Science and Technology (AIST) 5-2 Tsukuba Central 1-1 Higashi Tsukuba, Ibaraki 305-8565 Japan
| | - Kazunori Ushimaru
- Research Institute for Sustainable Chemistry National Institute of Advanced Industrial Science and Technology (AIST) 5-2 Tsukuba Central 1-1 Higashi Tsukuba, Ibaraki 305-8565 Japan
| | - Maito Koga
- Research Institute for Sustainable Chemistry National Institute of Advanced Industrial Science and Technology (AIST) 5-2 Tsukuba Central 1-1 Higashi Tsukuba, Ibaraki 305-8565 Japan
| | - Azusa Saika
- Research Institute for Sustainable Chemistry National Institute of Advanced Industrial Science and Technology (AIST) 5-2 Tsukuba Central 1-1 Higashi Tsukuba, Ibaraki 305-8565 Japan
| | - Tomotake Morita
- Research Institute for Sustainable Chemistry National Institute of Advanced Industrial Science and Technology (AIST) 5-2 Tsukuba Central 1-1 Higashi Tsukuba, Ibaraki 305-8565 Japan
| | - Yoshiaki Takahashi
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Chigusa Hayashi
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Masayuki Igarashi
- Institute of Microbial Chemistry (BIKAKEN) 3-14-23 Kamiosaki, Shinagawa-ku Tokyo 141-0021 Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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Banno T, Sawada D, Toyota T. Construction of Supramolecular Systems That Achieve Lifelike Functions. Materials (Basel) 2022; 15:ma15072391. [PMID: 35407724 PMCID: PMC8999524 DOI: 10.3390/ma15072391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/16/2022] [Accepted: 03/22/2022] [Indexed: 12/04/2022]
Abstract
The Nobel Prize in Chemistry was awarded in 1987 and 2016 for research in supramolecular chemistry on the “development and use of molecules with structure-specific interactions of high selectivity” and the “design and production of molecular machines”, respectively. This confirmed the explosive development of supramolecular chemistry. In addition, attempts have been made in systems chemistry to embody the complex functions of living organisms as artificial non-equilibrium chemical systems, which have not received much attention in supramolecular chemistry. In this review, we explain recent developments in supramolecular chemistry through four categories: stimuli-responsiveness, time evolution, dissipative self-assembly, and hierarchical expression of functions. We discuss the development of non-equilibrium supramolecular systems, including the use of molecules with precisely designed properties, to achieve functions found in life as a hierarchical chemical system.
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Affiliation(s)
- Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan; (T.B.); (D.S.)
| | - Daichi Sawada
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan; (T.B.); (D.S.)
| | - Taro Toyota
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
- Universal Biology Institute, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
- Correspondence:
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10
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Ikawa K, Aizawa A, Banno T, Fujishiro M, Yahagi S, Kuroda A, Asakura K. New in vitro SPF Evaluation Method for Hydrophilic Sunscreen Samples. J Oleo Sci 2022; 71:321-331. [PMID: 34980740 DOI: 10.5650/jos.ess21266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A new method was developed for the in vitro sun protection factor (SPF) evaluation of sunscreen samples. A new type of substrate, a hydroxyalkyl cellulose-coated plate, was also prepared specifically for hydrophilic samples. This new substrate was required because hydrophilic samples would be unlikely to wet the surface of the standard cosmetic PMMA UV evaluation plate. A super-hydrophilic quartz plate was prepared by corona-discharge treatment before an aqueous solution of hydroxyalkyl cellulose was spread on it. A flat and uniform hydroxyalkyl cellulose film was subsequently formed through the evaporation of water. Special care was taken to inhibit the generation of spatial non-uniformity. Six hydrophilic sunscreen samples with in vivo SPF values of 56, 55, 52, 25, 15, and 4, were then applied to the prepared hydroxyalkyl cellulose-coated plate, as well as a super-hydrophilic quartz plate and a flat hydrophobic PMMA plate. The thicknesses of the applied layers were determined using a wheel-shaped wet film thickness gauge immediately after the application, and UV transmission was measured using an SPF analyzer. The value of in vitro SPF was calculated from the UV absorbance and the thickness of the layer. For two out of the six samples, PMMA plate could not be available, as the samples were unable to wet the PMMA surface. Relatively small differences were observed between the in vitro SPF values when the super-hydrophilic and hydroxyalkyl cellulose-coated plates were used. Samples exhibiting higher in vivo SPF were also associated with higher in vitro SPF values, although a linear relationship was not observed. In contrast to the super-hydrophilic plate whose half-life of the super-hydrophilicity is only approximately five days, the hydrophilicity of the hydroxyalkyl cellulose-coated plate scarcely varied during six months of storage. Finally, a simplified evaluation method was also proposed. The validity of the method was verified through a ring test where three researchers employed this method in different laboratories at three independent organizations.
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Affiliation(s)
- Kurumi Ikawa
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
| | - Amiko Aizawa
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
| | - Miyuki Fujishiro
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University.,Advanced Technology Development Division, NIKKOL Group Cosmos Technical Center Co., LTD
| | - Shoichi Yahagi
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University.,Advanced Technology Development Division, NIKKOL Group Cosmos Technical Center Co., LTD
| | - Akihiro Kuroda
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University.,Yokohama Research Center, Kuroda Consulting Inc
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science & Technology, Keio University
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11
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Kondo T, Yasui C, Banno T, Asakura K, Fukuoka T, Ushimaru K, Koga M, Minamikawa H, Saika A, Morita T, Takahashi D, Toshima K. Self-Assembling Properties and Recovery Effects on Damaged Skin Cells of Chemically Synthesized Mannosylerythritol Lipids. Chembiochem 2021; 23:e202100631. [PMID: 34783433 DOI: 10.1002/cbic.202100631] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Indexed: 01/06/2023]
Abstract
Mannosylerythritol lipids (MELs), which are one of the representative sugar-based biosurfactants (BSs) produced by microorganisms, have attracted much attention in various fields in the sustainable development goals (SDGs) era. However, they are inseparable mixtures with respect to the chain length of the fatty acids. In this study, self-assembling properties and structure-activity relationship (SAR) studies of recovery effects on damaged skin cells using chemically synthesized MELs were investigated. It was revealed, for the first time, that synthetic and homogeneous MELs exhibited significant self-assembling properties to form droplets or giant vesicles. In addition, a small difference in the length of the fatty acid chains of the MELs significantly affected their recovery effects on the damaged skin cells. MELs with medium or longer length alkyl chains exhibited much higher recovery effects than that of C18-ceramide NP.
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Affiliation(s)
- Takanori Kondo
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Chihiro Yasui
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Tokuma Fukuoka
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 5-2 Tsukuba Central, 1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Kazunori Ushimaru
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 5-2 Tsukuba Central, 1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Maito Koga
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 5-2 Tsukuba Central, 1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Hiroyuki Minamikawa
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 5-2 Tsukuba Central, 1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Azusa Saika
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 5-2 Tsukuba Central, 1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Tomotake Morita
- Research Institute for Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 5-2 Tsukuba Central, 1-1 Higashi, Tsukuba, Ibaraki, 305-8565, Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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12
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Nakayama S, Kojima T, Kaburagi M, Kikuchi T, Asakura K, Banno T. Chemotaxis of Oil Droplets and Their Phase Transition to Aggregates with Membrane Structures in Surfactant Solution Containing Metal Salts. ChemSystemsChem 2021. [DOI: 10.1002/syst.202100035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sepia Nakayama
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Tomoya Kojima
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Mari Kaburagi
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Takanori Kikuchi
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kouichi Asakura
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Taisuke Banno
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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13
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Sawada D, Asakura K, Banno T. Pathway-Dependent Phase Transitions of Supramolecular Self-assemblies Containing Cationic Amphiphiles with Azobenzene and Disulfide Groups. Chemistry 2021; 27:13840-13845. [PMID: 34398482 DOI: 10.1002/chem.202102143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Indexed: 11/11/2022]
Abstract
There have been several attempts to construct supramolecular chemical systems that mimic the phase transitions in living systems. However, most of these phase transitions are one-to-one and induced by one stimulus or chemical; there have been few reports on the pathway-dependent phase transition of supramolecular self-assemblies in multi-step. To induce multistep phase transitions, molecular crystals were prepared that contained a cationic amphiphile bearing azobenzene and disulfide groups. A reducing agent caused the crystals to become vesicles, and adjacent, non-touching vesicles fused under UV and subsequent visible light. Adding a reducing agent to the worm-like aggregates that were generated after UV irradiation of the original crystals resulted in the growth of sheet-like aggregates. 1 H NMR and fluorescence anisotropy measurements showed that a series of phase transitions was induced by changes in the phase structures from molecular conversions of the reactive amphiphiles. The multiple pathway-dependent phase transitions of supramolecular self-assemblies can provide a methodology for developing new stimuli-responsive materials that exhibit the desirable properties under specific circumstances from a systems chemistry viewpoint.
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Affiliation(s)
- Daichi Sawada
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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14
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Takekawa S, Ohara M, Banno T, Asakura K. How to Control Powder Alignment to Maximize Functionality and Performance of Color Cosmetics and Sunscreen. J Oleo Sci 2021; 70:1081-1091. [PMID: 34248101 DOI: 10.5650/jos.ess21091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Control of powder alignment is essential for maximizing the functionality of color cosmetics and sunscreens. Various surface treatments were applied to nanosized titanium dioxide to modify their surface characteristics. Such modifications can be used to control the behavior of dispersions in cosmetics, enabling them to align uniformly. The powders were mixed with solvents and applied to a cellulose triacetate film. The features of powder alignment on the film were evaluated using several approaches. When the type of surface treatment changed by varying the weight ratio, there was no significant correlation between its alignment and treatment. However, when we focused on the pseudo-HLB each treated pigment, their alignments were correlated. It was confirmed that the powders subjected to the appropriate surface treatment combinations from the pseudo-HLB standpoint made it possible to align uniformly and create a smooth coating film. As a result, it has a high UV-shielding ability. The surface-treated powders in this study were found to change the UV shielding ability and surface roughness of the layer formed when they were formed by spreading the sample powder dispersion and drying of the film. It was suggested that the pseudoHLB, which is calculated based on the chemical structure after the surface treatment process, is useful for choosing the optimum surface treatment to create a uniformly aligned pigment layer.
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Affiliation(s)
- Shoji Takekawa
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Miwa Ohara
- Research and Development, Miyoshi America, Inc
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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15
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Sawada D, Hirono A, Asakura K, Banno T. pH-Tolerant giant vesicles composed of cationic lipids with imine linkages and oleic acids. RSC Adv 2020; 10:34247-34253. [PMID: 35519057 PMCID: PMC9056790 DOI: 10.1039/d0ra06822e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/08/2020] [Indexed: 02/05/2023] Open
Abstract
Giant vesicles (GVs) have attracted attention as functional materials because they can encapsulate both hydrophilic and hydrophobic compounds. For next generation functional GVs, both tolerance and stimuli-sensitivity are needed. So far, vesicles tolerant to acidic or basic conditions were generated using a mixture of cationic lipids and fatty acids. Here, to create functional GVs that are tolerant to a wide pH range but sensitively respond at below a specific pH, the behaviour of GVs composed of a cationic lipid with an imine bond and oleic acid was investigated. Even though the GVs prepared by the film swelling method were tolerant to strongly acidic conditions, GVs without oleic acid gradually shrank, accompanied by the generation of oil droplets at the same pH. 1H NMR analysis revealed that during hydration of the film, the imine bond hydrolysed to provide a cationic surfactant and an oil component in the presence of oleic acid due to its own Lewis basicity, suggesting the dissociation of oleic acid. The results of fluorescence spectroscopy using an environment-responsive probe and IR spectroscopy indicated that the GV tolerance originated from the intermolecular interactions of cationic lipids and anionic oleate. Giant vesicles composed of cationic lipids having an imine linkage and oleic acid were stable at strong acidic conditions.![]()
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Affiliation(s)
- Daichi Sawada
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Ayana Hirono
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Kouichi Asakura
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
| | - Taisuke Banno
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Yokohama 223-8522
- Japan
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16
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Tameyuki M, Hiranaka H, Toyota T, Asakura K, Banno T. Temperature-Dependent Dynamics of Giant Vesicles Composed of Hydrolysable Lipids Having an Amide Linkage. Langmuir 2019; 35:17075-17081. [PMID: 31797676 DOI: 10.1021/acs.langmuir.9b02707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Various amphiphiles including surfactants and lipids have been designed and synthesized to improve and create new functionalities. In particular, the emergence of cell-like behaviors of giant vesicles (GVs) composed of synthetic lipids has drawn much attention in the development of chemical models for cells. The aim of this study was to measure temperature-dependent morphological changes of GVs induced by fragmentation and subsequent growth using hydrolysable cationic lipids having an amide linkage. Results from differential scanning calorimetry, fluorescence spectroscopy using an environment-responsive probe, and confocal Raman microscopy showed that the dynamics observed were due to changes in the vesicle membrane, including variation in the lipid composition, induced by thermal stimulation.
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Affiliation(s)
- Maito Tameyuki
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
| | - Hisato Hiranaka
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
| | - Taro Toyota
- Department of Basic Science, Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
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17
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Kasuo Y, Kitahata H, Koyano Y, Takinoue M, Asakura K, Banno T. Start of Micrometer-Sized Oil Droplet Motion through Generation of Surfactants. Langmuir 2019; 35:13351-13355. [PMID: 31550892 DOI: 10.1021/acs.langmuir.9b01722] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-propelled motion of micrometer-sized oil droplets in surfactant solution has drawn much attention as an example of nonlinear life-like dynamics under far-from-equilibrium conditions. The driving force of this motion is thought to be induced by Marangoni convection based on heterogeneity in the interfacial tension at the droplet surface. Here, to clarify the required conditions for the self-propelled motion of oil droplets, we have constructed a chemical system, where oil droplet motion is induced by the production of 1,2,3-triazole-containing surfactants through the Cu-catalyzed azide-alkyne cycloaddition reaction. From the results of the visualization and analysis of flow fields around the droplet, the motion of the droplets could be attributed to the formation of flow fields, which achieved sufficient strength caused by the in situ production of surfactants at the droplet surface.
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Affiliation(s)
- Yui Kasuo
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
| | - Hiroyuki Kitahata
- Department of Physics, Graduate School of Science , Chiba University , 1-33 Yayoi-cho , Inage-ku, Chiba 263-8522 , Japan
| | - Yuki Koyano
- Department of Physics , Tohoku University , 6-3 Aramaki-Aza-Aoba , Aoba-ku, Miyagi 980-8578 , Japan
| | - Masahiro Takinoue
- Department of Computer Science , Tokyo Institute of Technology , 4259 Nagatsuta-cho , Midori-ku , Yokohama 226-8502 , Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
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18
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Affiliation(s)
- Shohei Kozuka
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Syuji Fujii
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Yoshinobu Nakamura
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan
| | - Shin-ichi Yusa
- Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2280, Japan
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19
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Kuroda A, Sakai K, Yahagi S, Mukawa T, Sato N, Nakamura N, Maezawa D, Masaki H, Banno T, Asakura K. Surface Structures of Cosmetic Standard Poly Methyl Methacrylate UV Evaluation Plates and their Influence on the in vitro Evaluation of UV Protection Abilities of Cosmetic Sunscreens. J Oleo Sci 2019; 68:175-182. [PMID: 30651410 DOI: 10.5650/jos.ess18207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cosmetic standard poly methyl methacrylate (PMMA) UV evaluation plates, i.e., roughened PMMA plates, are used in the EU and the US for the in vitro evaluation of UV protection abilities of sunscreen, such as in vitro UVA-PF and critical wavelength for the Broad-spectrum approval. In our previous studies, inhomogeneity in the thickness of a pseudo-sunscreen layer applied on a flat quartz plate was observed to alter UV transmission. Thus, the surface roughness of the standard plates should have a significant influence on the in vitro evaluation. In the present study, we have analyzed the surface structures of three cosmetic standard PMMA UV evaluation plates: Helioplates HD6 (Sa = 6 µm) and ISO plates (Ra = 2 and 5 µm). A decamethylcyclopentasiloxane and 2-propanol-mixed solvent solution of acrylsilicone resin was prepared, and the solution was added dropwise onto the plates. After the evaporation of the solvents, the plates were cut and the cross section was analyzed using SEM-EDS. The distribution of silicon atoms at the cross-section suggested that the maximum depth of penetrating of acrylsilicone resin was larger than Ra for all the standard plates, and the surface structure was significantly different for each standard plate. In addition, cracks into which the acrylsilicone resin deeply penetrated were observed on the surface of some plates. Clear-solution-type pseudo-sunscreen samples in which UV absorbers and acrylsilicone resin were dissolved were deposited on the standard roughened PMMA plates. It was observed that the addition of acrylsilicone resin drastically changed the net UV transmission. The degree to which the hollows of the roughened surface were filled with the pseudo-sunscreen samples determined the variation of UV transmittance.
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Affiliation(s)
- Akihiro Kuroda
- Yokohama Research Center, Kuroda Consulting Inc.,Department of Applied Chemistry, Keio University
| | - Karin Sakai
- Department of Applied Chemistry, Keio University
| | - Shoichi Yahagi
- Department of Efficacy and Safety Evaluation, NIKKOL Group Cosmos Technical Center Co., LTD
| | | | | | | | - Daisuke Maezawa
- Department of Applied Chemistry, Keio University.,R & D Center, Para Hermosa Co., Ltd
| | - Hitoshi Masaki
- School of Bioscience and Biotechnology, Tokyo University of Technology
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20
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Konno S, Banno T, Takagi H, Honda S, Toyota T. Irreversible aggregation of alternating tetra-block-like amphiphile in water. PLoS One 2018; 13:e0202816. [PMID: 30148887 PMCID: PMC6110477 DOI: 10.1371/journal.pone.0202816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 08/09/2018] [Indexed: 11/18/2022] Open
Abstract
As a frontier topic of soft condensed matter physics, irreversible aggregation has drawn attention for a better understanding of the complex behavior of biomaterials. In this study, we have described the synthesis of an artificial amphiphilic molecule, an alternating tetra-block-like amphiphile, which was able to diversify its aggregate structure in water. The aggregated state of its aqueous dispersion was obtained by slow evaporation of the organic solvent at room temperature, and it collapsed irreversibly at ~ 50°C. By using a cryo-transmission electron microscope and a differential scanning calorimeter, it was revealed that two types of molecular nanostructures were formed and developed into submicro- and micrometer-sized fibrils in the aggregated material.
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Affiliation(s)
- Shota Konno
- Department of Basic Science, The University of Tokyo, Komaba, Meguro-ku, Tokyo, Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Japan
| | - Hideaki Takagi
- Photon Factory, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Oho, Tsukuba, Ibaraki, Japan
| | - Satoshi Honda
- Department of Basic Science, The University of Tokyo, Komaba, Meguro-ku, Tokyo, Japan
| | - Taro Toyota
- Department of Basic Science, The University of Tokyo, Komaba, Meguro-ku, Tokyo, Japan
- * E-mail:
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21
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Hirono A, Toyota T, Asakura K, Banno T. Locomotion Mode of Micrometer-Sized Oil Droplets in Solutions of Cationic Surfactants Having Ester or Ether Linkages. Langmuir 2018; 34:7821-7826. [PMID: 29878786 DOI: 10.1021/acs.langmuir.8b01352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Micrometer-sized self-propelled oil droplets under a far-from-equilibrium condition have drawn much attention because of their potential as a dynamic model for the chemical machinery in living organisms. To clarify the effect of interactions between the system components (surfactant, oil, and water) on the locomotion mode of droplets, we investigated the behaviors of oil droplets composed of n-heptyloxybenzaldehyde (HBA) in solutions of cationic surfactants having or not having an ester or an ether linkage. It was observed that in solutions of cationic surfactants having an ester or an ether linkage, spherical HBA droplets self-propelled by changing their direction frequently. On the other hand, when this functional group is absent, a slow self-propelled motion of the oil droplets concurrent with the evolution of aggregates on their surface was observed. From the results of measurement of interfacial tension and assessment of self-emulsification, we determined that the attractive interactions of cationic surfactants without an ester or an ether linkage with HBA are stronger than those having the linkage. The difference in the locomotion mode of oil droplets is probably explained from the viewpoint of the interactions among the system components.
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Affiliation(s)
- Ayana Hirono
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
| | - Taro Toyota
- Department of Basic Science, Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi , Kohoku-ku, Yokohama 223-8522 , Japan
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22
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Abstract
Liquid droplets are very simple objects present in our everyday life. They are extremely important for many natural phenomena as well as for a broad variety of industrial processes. The conventional research areas in which the droplets are studied include physical chemistry, fluid mechanics, chemical engineering, materials science, and micro- and nanotechnology. Typical studies include phenomena such as condensation and droplet formation, evaporation of droplets, or wetting of surfaces. The present article reviews the recent literature that employs droplets as animated soft matter. It is argued that droplets can be considered as liquid robots possessing some characteristics of living systems, and such properties can be applied to unconventional computing through maze solving or operation in logic gates. In particular, the lifelike properties and behavior of liquid robots, namely (i) movement, (ii) self-division, and (iii) group dynamics, will be discussed.
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23
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Affiliation(s)
- W.T. Shmayda
- Ontario Hydro Research Division 800 Kipling Avenue Toronto, Ontario, Canada, M8Z 5S4 (416) 231-4111
| | - F. Waelbroeck
- Ontario Hydro Research Division 800 Kipling Avenue Toronto, Ontario, Canada, M8Z 5S4 (416) 231-4111
| | - J. Winter
- Ontario Hydro Research Division 800 Kipling Avenue Toronto, Ontario, Canada, M8Z 5S4 (416) 231-4111
| | - P. Wienhold
- Ontario Hydro Research Division 800 Kipling Avenue Toronto, Ontario, Canada, M8Z 5S4 (416) 231-4111
| | - T. Banno
- Ontario Hydro Research Division 800 Kipling Avenue Toronto, Ontario, Canada, M8Z 5S4 (416) 231-4111
| | - N.P. Kherani
- Ontario Hydro Research Division 800 Kipling Avenue Toronto, Ontario, Canada, M8Z 5S4 (416) 231-4111
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24
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Yuasa H, Asakura K, Banno T. Sequential dynamic structuralisation by in situ production of supramolecular building blocks. Chem Commun (Camb) 2017; 53:8553-8556. [PMID: 28707692 DOI: 10.1039/c7cc04301e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We herein report an example of sequential dynamic higher structuralisation from disordered droplets into higher-ordered structures, resulting in the formation of a hydrogel. This is a potential model for understanding complicated biosystems in which lower-ordered structures evolve into higher-ordered structures that interact with specific molecules.
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Affiliation(s)
- Hirohiko Yuasa
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
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25
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Ueno N, Banno T, Asami A, Kazayama Y, Morimoto Y, Osaki T, Takeuchi S, Kitahata H, Toyota T. Self-Propelled Motion of Monodisperse Underwater Oil Droplets Formed by a Microfluidic Device. Langmuir 2017; 33:5393-5397. [PMID: 28502179 DOI: 10.1021/acs.langmuir.7b00092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We evaluated the speed profile of self-propelled underwater oil droplets comprising a hydrophobic aldehyde derivative in terms of their diameter and the surrounding surfactant concentration using a microfluidic device. We found that the speed of the oil droplets is dependent on not only the surfactant concentration but also the droplet size in a certain range of the surfactant concentration. This tendency is interpreted in terms of combination of the oil and surfactant affording spontaneous emulsification in addition to the Marangoni effect.
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Affiliation(s)
- Naoko Ueno
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
| | - Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University , 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Arisa Asami
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
| | - Yuki Kazayama
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
| | - Yuya Morimoto
- Institute of Industrial Science (IIS), The University of Tokyo , 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Toshihisa Osaki
- Institute of Industrial Science (IIS), The University of Tokyo , 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
- KAST R&D, Kanagawa Institute of Industrial Science and Technology , 3-2-1 Sakado, Takatsu-ku, Kawasaki City, Kanagawa 213-0012, Japan
| | - Shoji Takeuchi
- Institute of Industrial Science (IIS), The University of Tokyo , 4-6-1 Komaba, Meguro, Tokyo 153-8505, Japan
| | - Hiroyuki Kitahata
- Department of Physics, Chiba University , 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
| | - Taro Toyota
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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26
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Kaneko S, Asakura K, Banno T. Phototactic behavior of self-propelled micrometer-sized oil droplets in a surfactant solution. Chem Commun (Camb) 2017; 53:2237-2240. [DOI: 10.1039/c6cc09236e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We demonstrate the phototactic behavior of self-propelled micrometer-sized oil droplets in a far-from-equilibrium state.
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Affiliation(s)
- Sho Kaneko
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| | - Kouichi Asakura
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| | - Taisuke Banno
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
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27
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Takamochi K, Hattori A, Maeyashiki T, Matsunaga T, Banno T, Oh S, Suzuki K. Are the criteria indicating patients to be “medically inoperable” that are used in clinical trials on stereotactic body radiotherapy appropriate for patients with early stage non-small cell lung cancer? Ann Oncol 2016. [DOI: 10.1093/annonc/mdw381.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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28
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Banno T, Tanaka Y, Asakura K, Toyota T. Self-Propelled Oil Droplets and Their Morphological Change to Giant Vesicles Induced by a Surfactant Solution at Low pH. Langmuir 2016; 32:9591-9597. [PMID: 27580350 DOI: 10.1021/acs.langmuir.6b02449] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Unique dynamics using inanimate molecular assemblies based on soft matter have drawn much attention for demonstrating far-from-equilibrium chemical systems. However, there are no soft matter systems that exhibit a possible pathway linking the self-propelled oil droplets to formation of giant vesicles stimulated by low pH. In this study, we conceived an experimental oil-in-water emulsion system in which flocculated particles composed of a imine-containing oil transformed to spherical oil droplets that self-propelled and, after coming to rest, formed membranous figures. Finally, these figures became giant vesicles. From NMR, pH curves, and surface tension measurements, we determined that this far-from-equilibrium phenomenon was due to the acidic hydrolysis of the oil, which produced a benzaldehyde derivative as an oil component and a primary amine as a surfactant precursor, and the dynamic behavior of the hydrolytic products in the emulsion system. These findings afforded us a potential linkage between mobile droplet-based protocells and vesicle-based protocells stimulated by low pH.
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Affiliation(s)
- Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University , 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Yuki Tanaka
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
| | - Kouichi Asakura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University , 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Taro Toyota
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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Furue Y, Okano K, Banno T, Asakura K. Controlled polymerization of acrylonitrile proceeded along with the Belousov–Zhabotinsky oscillator by changing its stirring conditions. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2015.12.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Takahashi K, Matsuo M, Banno T, Toyota T. Micrometer-sized network structure of novel DNA-lipid conjugates induced by heat stimulation. Soft Matter 2015; 11:7053-7058. [PMID: 26249035 DOI: 10.1039/c5sm01456e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have developed a novel lipid-bearing DNA that forms hairpin modules, including a single RNA monomer; this can be used to create micrometer-sized structures from nanometer-sized building blocks during breakage at the RNA site. In the presence of divalent metal ions and heat stimulation, we observed transition of the self-assembly, which results in the formation of a three-dimensional network structure. To our knowledge, this is also the first report of heat-induced micrometer-sized molecular self-assembly of molecules that carry biological information.
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Affiliation(s)
- K Takahashi
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan.
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Abstract
Unique dynamics using inanimate molecular assemblies have drawn a great amount of attention for demonstrating prebiomimetic molecular systems. For the construction of an organized logic combining two fundamental dynamics of life, we demonstrate here a molecular system that exhibits both division and self-propelled motion using oil droplets. The key molecule of this molecular system is a novel cationic surfactant containing a five-membered acetal moiety, and the molecular system can feed the self-propelled oil droplet composed of a benzaldehyde derivative and an alkanol. The division dynamics of the self-propelled oil droplets were observed through the hydrolysis of the cationic surfactant in bulk solution. The mechanism of the current dynamics is argued to be based on the supply of "fresh" oil components in the moving oil droplets, which is induced by the Marangoni instability. We consider this molecular system to be a prototype of self-reproducing inanimate molecular assembly exhibiting self-propelled motion.
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Affiliation(s)
- Taisuke Banno
- †Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
| | - Taro Toyota
- †Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
- ‡Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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Abstract
We demonstrate a novel system that exhibits both self-propelled motion and division of micrometer-sized oil droplets induced by chemical conversion of the system components. Such unique dynamics were observed in an oil-in-water emulsion of a benzaldehyde derivative, an alkanol and a cationic surfactant at a low pH.
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Affiliation(s)
- Taisuke Banno
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan.
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Banno T, Kazayama Y, Toyota T. Giant Vesicle Formation of Novel Polymerizable Amphiphile Associated with Its Polymerization and Hydrolysis in Water. CHEM LETT 2014. [DOI: 10.1246/cl.140635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Taisuke Banno
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Yuki Kazayama
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
| | - Taro Toyota
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
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Miura S, Banno T, Tonooka T, Osaki T, Takeuchi S, Toyota T. pH-induced motion control of self-propelled oil droplets using a hydrolyzable gemini cationic surfactant. Langmuir 2014; 30:7977-7985. [PMID: 24934718 DOI: 10.1021/la5018032] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Self-propelled motion of micrometer-sized substances has drawn much attention as an autonomous transportation system. One candidate vehicle is a chemically driven micrometer-sized oil droplet. However, to the best of our knowledge, there has been no report of a chemical reaction system controlling the three-dimensional motion of oil droplets underwater. In this study, we developed a molecular system that controlled the self-propelled motion of 4-heptyloxybenzaldehyde oil droplets by using novel gemini cationic surfactants containing carbonate linkages (2G12C). We found that, in emulsions containing sodium hydroxide, the motion time of the self-propelled oil droplets was longer in the presence of 2G12C than in the presence of gemini cationic surfactants without carbonate linkages. Moreover, in 2G12C solution, oil droplets at rest underwent unidirectional, self-propelled motion in a gradient field toward a higher concentration of sodium hydroxide. Even though they stopped within several seconds, they restarted in the same direction. 2G12C was gradually hydrolyzed under basic conditions to produce a pair of the corresponding monomeric surfactants, which exhibit different interfacial properties from 2G12C. The prolonged and restart motion of the oil droplets were explained by the increase in the heterogeneity of the interfacial tension of the oil droplets.
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Affiliation(s)
- Shingo Miura
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo , 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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Banno T, Suzuki K, Takamochi K, Oh S. P-149 * CLINICAL FEATURES OF PATIENTS ON HOME OXYGEN THERAPY AFTER SURGICAL RESECTION FOR LUNG CANCER. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Uchida S, Nakamura H, Matsunaga T, Fukui M, Banno T, Takamochi K, Oh S, Suzuki K. P-178 * PROPHYLACTIC LIGATION OF THE THORACIC DUCT DOES NOT ALWAYS PREVENT POSTOPERATIVE CHYLOTHORAX IN PULMONARY RESECTION. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Suzuki K, Takamochi K, Oh S, Imashimizu K, Banno T, Matsunaga T, Fukui M. V-050 * EXTENDED DOUBLE SLEEVE RIGHT UPPER LOBECTOMY (SO-CALLED TYPE A EXTENDED SLEEVE) COMBINED WITH TRANSPOSITION OF THE INFERIOR PULMONARY VEIN FOR LUNG CANCER. Interact Cardiovasc Thorac Surg 2014. [DOI: 10.1093/icvts/ivu167.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Toyota T, Banno T, Nitta S, Takinoue M, Nomoto T, Natsume Y, Matsumura S, Fujinami M. Molecular Building Blocks and Their Architecture in Biologically/Environmentally Compatible Soft Matter Chemical Machinery. J Oleo Sci 2014; 63:1085-98. [DOI: 10.5650/jos.ess14190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Banno T, Miura S, Kuroha R, Toyota T. Mode changes associated with oil droplet movement in solutions of gemini cationic surfactants. Langmuir 2013; 29:7689-7696. [PMID: 23706080 DOI: 10.1021/la401416h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Micrometer-sized self-propelled oil droplets in nonequilibrium systems have attracted much attention, since they form stable emulsions composed of oil, water, and surfactant which represent a primitive type of inanimate chemical machinery. In this work, we examined means of controlling the movement of oil droplets by studying the dynamics of n-heptyloxybenzaldehyde droplets in phosphate buffers containing alkanediyl-α,ω-bis(N-dodecyl-N,N-dimethylammonium bromide) (nG12) with either tetramethylene (4G12), octaethylene (8G12), or dodecamethylene (12G12) chains in the linker moiety. Significant differences in droplet dynamics were observed to be induced by changes in the linker structure of these gemini cationic surfactants. In a phosphate buffer containing 30 mM 4G12, self-propelled motion of droplets concurrent with the formation of molecular aggregates on their surfaces was observed, whereas the fusion of oil droplets was evident in both 8G12 and 12G12 solutions. We also determined that the surface activities and the extent of molecular self-assembly of the surfactants in phosphate buffer were strongly influenced by the alkyl chain length in the linker moiety. We therefore conclude that the surface activities of the gemini cationic surfactant have important effects on the oil-water interfacial tension of oil droplets and the formation of molecular aggregates and that both of these factors induce the unique movement of the droplets.
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Affiliation(s)
- Taisuke Banno
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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Banno T, Kuroha R, Toyota T. pH-Sensitive self-propelled motion of oil droplets in the presence of cationic surfactants containing hydrolyzable ester linkages. Langmuir 2012; 28:1190-1195. [PMID: 22149384 DOI: 10.1021/la2045338] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Self-propelled oil droplets in a nonequilibrium system have drawn much attention as both a primitive type of inanimate chemical machinery and a dynamic model of the origin of life. Here, to create the pH-sensitive self-propelled motion of oil droplets, we synthesized cationic surfactants containing hydrolyzable ester linkages. We found that n-heptyloxybenzaldehyde oil droplets were self-propelled in the presence of ester-containing cationic surfactant. In basic solution prepared with sodium hydroxide, oil droplets moved as molecular aggregates formed on their surface. Moreover, the self-propelled motion in the presence of the hydrolyzable cationic surfactant lasted longer than that in the presence of nonhydrolyzable cationic surfactant. This is probably due to the production of a fatty acid by the hydrolysis of the ester-containing cationic surfactant and the subsequent neutralization of the fatty acid with sodium hydroxide. A complex surfactant was formed in the aqueous solution because of the cation and anion combination. Because such complex formation can induce both a decrease in the interfacial tension of the oil droplet and self-assembly with n-heptyloxybenzaldehyde and lauric acid in the aqueous dispersion, the prolonged movement of the oil droplet may be explained by the increase in heterogeneity of the interfacial tension of the oil droplet triggered by the hydrolysis of the ester-containing surfactant.
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Affiliation(s)
- Taisuke Banno
- Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan
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Banno T, Kawada K, Matsumura S. Chemo-enzymatic Synthesis and Properties of Novel Optically Active Cationics Containing Carbonate Linkages. J Oleo Sci 2011; 60:185-95. [DOI: 10.5650/jos.60.185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Banno T, Sato H, Tsuda T, Matsumura S. Synthesis and Properties of Green Sustainable Carbonate-type Nonionics Containing Polyoxyethylene Chains. J Oleo Sci 2011; 60:117-26. [DOI: 10.5650/jos.60.117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Banno T, Kawada K, Matsumura S. Creation of Novel Green and Sustainable Gemini-Type Cationics Containing Carbonate Linkages. J SURFACTANTS DETERG 2010. [DOI: 10.1007/s11743-010-1224-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Okada Y, Banno T, Toshima K, Matsumura S. Synthesis and Properties of Polycarboxylate-type Green Surfactants with S- or N-Linkages. J Oleo Sci 2009; 58:519-28. [DOI: 10.5650/jos.58.519] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sonoda T, Katou K, Asahina T, Banno T, Yamada Y. Improvement of porous structure of sintered highly porous aluminum materials by surface modification of aluminum particles with tin. SURF INTERFACE ANAL 2008. [DOI: 10.1002/sia.2982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kawachi Y, Itoh M, Fujisawa Y, Furuta J, Nakamura Y, Banno T, Takahashi T, Otsuka F. Epidermal cell necrosis with direct epidermal infiltration of Epstein-Barr virus (EBV)-encoded small nuclear RNA-positive T lymphocytes in a patient with EBV-associated haemophagocytic syndrome. Br J Dermatol 2007; 157:1053-6. [PMID: 17725675 DOI: 10.1111/j.1365-2133.2007.08142.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Banno T, Toshima K, Kawada K, Matsumura S. Synthesis and Properties of Biodegradable and Chemically Recyclable Cationic Surfactants Containing Carbonate Linkages. J Oleo Sci 2007; 56:493-9. [PMID: 17898517 DOI: 10.5650/jos.56.493] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Novel biodegradable and chemically recyclable carbonate-type cationic surfactants consisting of a long chain alkyl group and a quaternary ammonium propyl group were designed and synthesized as a green surfactant. These carbonate-type cationics showed better surface activities in an aqueous solution when compared to the conventional cationics. Novel cationics containing both the carbonate linkage and n-dodecyl group showed strong antimicrobial properties, enzymatic degradabilities for chemical recycling and rapid biodegradabilities by activated sludge.
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Affiliation(s)
- Taisuke Banno
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama-shi, Japan
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Ogino H, Banno T, Sato Y, Hara M, Shibamoto Y. Superior Mesenteric Artery Stent-graft Placement in a Patient with Pseudoaneurysm Developing from a Pancreatic Pseudocyst. Cardiovasc Intervent Radiol 2003; 27:68-70. [PMID: 15109233 DOI: 10.1007/s00270-003-2727-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Pseudoaneurysm is a relatively rare but serious complication of pancreatitis which is often fatal. We report successful stent-graft placement in the superior mesenteric artery in a 45-year-old man with a pancreatic pseudocyst that grew during therapy for chronic pancreatitis and developed into a pseudoaneurysm. After a stent graft was inserted in the superior mesenteric artery, the pseudoaneurysm disappeared and no further complications developed. Stentgraft placement was considered to be a useful therapy for pseudoaneurysms in the superior mesenteric arterial region.
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Affiliation(s)
- H Ogino
- Department of Radiology, Nagoya City University School of Medicine 1, Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Japan.
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Sato Y, Ogino H, Hara M, Satake M, Oshima H, Banno T, Mizuno K, Mishima A, Shibamoto Y. Embolization of Collateral Vessels Using Mechanically Detachable Coils in Young Children with Congenital Heart Disease. Cardiovasc Intervent Radiol 2003; 26:528-33. [PMID: 15061176 DOI: 10.1007/s00270-003-2723-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Our objective was to evaluate the usefulness of embolizing collateral vessels using mechanically detachable coils (MDCs) in children aged 3 years or younger with congenital heart disease. The subjects were 8 children with congenital heart disease featuring collateral vessels (age 18 days-3 years): 3 with a single ventricle, 2 with the tetralogy of Fallot, 2 with pulmonary atresia, and 1 with a ventricular septal defect. The embolized vessels were the major aortopulmonary collateral artery (MAPCA) in 5 patients, the persistent left superior vena cava in 2, and the coronary arteriovenous fistula in 1. A 4 or a 5 F catheter was used as the guiding device, and embolization was performed using MDCs and other conventional coils introduced through the microcatheter. One patient had growth of new MAPCAs after embolization, and these MAPCAs were also embolized with MDCs. Thus, a total of 9 embolization procedures were performed in 8 patients. Complete occlusion of the collateral vessels was achieved in 8 of 9 procedures (89%). Seven of 8 patients (88%) had uneventful courses after embolization, and MDC procedures appeared to play important roles in avoiding coil migration and achievement of safe coil embolization. One patient who underwent MAPCA embolization showed no improvement in heart function and died 2 months and 19 days later. Embolization of collateral vessels using MDCs in young children with congenital heart disease can be an effective procedure and a valuable adjunct to surgical management.
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Affiliation(s)
- Y Sato
- Department of Radiology, Nagoya City University Medical School, Nagoya, Japan.
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