Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.471
Y. Kondo
{"title":"Interface - Classification and Functions of Surfactants","authors":"Y. Kondo","doi":"10.5650/oleoscience.22.471","DOIUrl":"https://doi.org/10.5650/oleoscience.22.471","url":null,"abstract":"","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87389705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.459
Mamiko Kikuchi
: Controlling oxidative stress on the skin surface, such as lipid peroxidation in sebum and subsequent carbonylation of stratum corneum proteins, is an important challenge in the field of cos-metology because this stress negatively affects the properties and appearance of the skin. Sebum spreads through the pores in skin to the surface of the stratum corneum, so the oxidation of sebum as a phenomenon that occurs within the pores cannot be overlooked. Therefore, to control oxidative stress on the skin surface, it is necessary to understand it as a series of oxidative stress reactions of the sebum, stratum corneum, pores, and pore plugs. This article presents the effects of pore plugs to oxidative stress for skin and the contribution reducing oxidative stress via pore plug cleansing has on skin color.
{"title":"Effects of Pore Plug Cleansing on Skin－Focusing on Skin Surface Oxidative Stress－","authors":"Mamiko Kikuchi","doi":"10.5650/oleoscience.22.459","DOIUrl":"https://doi.org/10.5650/oleoscience.22.459","url":null,"abstract":": Controlling oxidative stress on the skin surface, such as lipid peroxidation in sebum and subsequent carbonylation of stratum corneum proteins, is an important challenge in the field of cos-metology because this stress negatively affects the properties and appearance of the skin. Sebum spreads through the pores in skin to the surface of the stratum corneum, so the oxidation of sebum as a phenomenon that occurs within the pores cannot be overlooked. Therefore, to control oxidative stress on the skin surface, it is necessary to understand it as a series of oxidative stress reactions of the sebum, stratum corneum, pores, and pore plugs. This article presents the effects of pore plugs to oxidative stress for skin and the contribution reducing oxidative stress via pore plug cleansing has on skin color.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88847813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.219
K. Aoyagi
: Turbidity measurement was found to be a simple and effective method to evaluate the solubilization of water in Aerosol OT (AOT) / cosurfactant / mineral oil systems. The systems showed greater ability to solubilize water when the mineral oil was a long chain hydrocarbon with a carbon number between C10 and C12. Because these hydrocarbons do not easily penetrate the monolayer of the reversed micelles, the effective volume of the monolayer does not increase and the micellar size is maintained. The most suitable cosurfactants were sorbitan trioleate (Span 85) and sorbitan monolaurate (Span 20), and each increased the solubilization of water by a different mechanism. It seems that Span 85 acts on the lipophilic groups of the AOT molecules, thickening the monolayer of the reversed micelle to prevent the mineral oil from penetrating it, thereby promoting formation of larger, stabler reversed micelles. Meanwhile, Span 20 may form reversed micelles with the AOT molecules, weaken-ing the electrostatic interaction between the hydrophilic groups to allow formation of larger and stabler reversed micelles.
{"title":"Solubilization of Water in Aerosol OT / Cosurfactant / Mineral Oil Systems","authors":"K. Aoyagi","doi":"10.5650/oleoscience.22.219","DOIUrl":"https://doi.org/10.5650/oleoscience.22.219","url":null,"abstract":": Turbidity measurement was found to be a simple and effective method to evaluate the solubilization of water in Aerosol OT (AOT) / cosurfactant / mineral oil systems. The systems showed greater ability to solubilize water when the mineral oil was a long chain hydrocarbon with a carbon number between C10 and C12. Because these hydrocarbons do not easily penetrate the monolayer of the reversed micelles, the effective volume of the monolayer does not increase and the micellar size is maintained. The most suitable cosurfactants were sorbitan trioleate (Span 85) and sorbitan monolaurate (Span 20), and each increased the solubilization of water by a different mechanism. It seems that Span 85 acts on the lipophilic groups of the AOT molecules, thickening the monolayer of the reversed micelle to prevent the mineral oil from penetrating it, thereby promoting formation of larger, stabler reversed micelles. Meanwhile, Span 20 may form reversed micelles with the AOT molecules, weaken-ing the electrostatic interaction between the hydrophilic groups to allow formation of larger and stabler reversed micelles.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86024942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.605
Hideyuki Hara
{"title":"Advances in TDNMR State Analysis Techniques","authors":"Hideyuki Hara","doi":"10.5650/oleoscience.22.605","DOIUrl":"https://doi.org/10.5650/oleoscience.22.605","url":null,"abstract":"","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73036114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.381
Y. Ishida
{"title":"Structural Analysis of Drying Oil Components in Japanese Traditional Carpet “Yuton” by Thermochemolysis-Gas Chromatography","authors":"Y. Ishida","doi":"10.5650/oleoscience.22.381","DOIUrl":"https://doi.org/10.5650/oleoscience.22.381","url":null,"abstract":"","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78773551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.551
Hideaki Tokuyama
{"title":"Thermosensitive Properties of Polymeric Gels with Alkyl Side Chains","authors":"Hideaki Tokuyama","doi":"10.5650/oleoscience.22.551","DOIUrl":"https://doi.org/10.5650/oleoscience.22.551","url":null,"abstract":"","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75726096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.195
N. Kimizuka
: Photon upconversion by triplet-triplet annihilation mechanism (TTA-UC) is a promising methodology for advanced utilization of sunlight. Conventionally, TTA-UC has utilized diffusion and collision of molecules in organic solvents, while we have developed molecularly organized TTA-UC by combining the concepts of TTA-UC and molecular self-assembly. We herein describe the development of our research from molecular self-assembly in solution systems to solid-state materials.
{"title":"Chemistry of Photon Upconversion Based on Molecular Assembly","authors":"N. Kimizuka","doi":"10.5650/oleoscience.22.195","DOIUrl":"https://doi.org/10.5650/oleoscience.22.195","url":null,"abstract":": Photon upconversion by triplet-triplet annihilation mechanism (TTA-UC) is a promising methodology for advanced utilization of sunlight. Conventionally, TTA-UC has utilized diffusion and collision of molecules in organic solvents, while we have developed molecularly organized TTA-UC by combining the concepts of TTA-UC and molecular self-assembly. We herein describe the development of our research from molecular self-assembly in solution systems to solid-state materials.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91278775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-01-01DOI: 10.5650/oleoscience.22.514
K. Nagao
{"title":"Absorption, Metabolism, Nutrition and Function of Lipids","authors":"K. Nagao","doi":"10.5650/oleoscience.22.514","DOIUrl":"https://doi.org/10.5650/oleoscience.22.514","url":null,"abstract":"","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78715658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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