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Upconversion Fluorescent Materials Studies to Lead the Development of Near Infrared Biophotonics 上转换荧光材料研究引领近红外生物光子学的发展
Oleoscience Pub Date : 2022-01-01 DOI: 10.5650/oleoscience.22.211
K. Soga
{"title":"Upconversion Fluorescent Materials Studies to Lead the Development of Near Infrared Biophotonics","authors":"K. Soga","doi":"10.5650/oleoscience.22.211","DOIUrl":"https://doi.org/10.5650/oleoscience.22.211","url":null,"abstract":": Studies on up-conversion (UC) fluorescent materials are closely related to the emergence of materials that exhibit UC fluorescence and the development of their synthetic processes, and is also an opportunity to develop biophotonics using near-infrared light as excitation light, which has been at-tracting attention in recent years. The basis of the design of a fluorescent material is how to emit the given excitation energy as light without converting it into heat. The establishment of a method for synthesizing fluoride nanoparticles had a great influence on the development of UC fluorescent materials for biophotonics, and once a stable method for synthesizing nanoparticles is established, the design and synthesis of organic-inorganic composites using them had broken out. An important guideline in this case is again how to avoid the heat generation. It was inevitable to consider the effect of organic molecules, which have not been discussed so far, on the thermal relaxation of the excited electrons of rare earth ions in ceramic nanoparticles. This paper introduces the development of biophotonics, which originated from the studies on UC fluorescent materials, and presents the concept of the influence of organic molecular systems on electrons of rare earth ions in inorganic nanoparticles.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84470728","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}
引用次数: 0
Role of Packaging in Maintaining Food Quality 包装在保持食品质量中的作用
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/OLEOSCIENCE.21.93
H. Kitazawa
{"title":"Role of Packaging in Maintaining Food Quality","authors":"H. Kitazawa","doi":"10.5650/OLEOSCIENCE.21.93","DOIUrl":"https://doi.org/10.5650/OLEOSCIENCE.21.93","url":null,"abstract":"Long-term food storage has recently drawn attention owing to the interest in reducing food loss and to lifestyle changes brought about by the coronavirus disease 2019 pandemic. Packaging plays an important role in the long-term storage of preser ved or emergency foods. This review explains the primary function of packaging and discusses typical materials that perform such functions; it also describes the role of packaging in maintaining food quality. The development of technology for maintaining the quality of fresh produce during long-term storage is also garnering attention. However, fresh produce packaging usually dif fers from non-perishable food packaging. Therefore, this review includes a separate section that explains the requirements for fresh produce packaging and provides the latest research on such packaging.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74852439","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}
引用次数: 2
Composition and Biological Activities of Exosomal Lipids Bilayers 外泌体脂质双层的组成及生物活性
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/OLEOSCIENCE.21.69
Nao Nishida-Aoki
{"title":"Composition and Biological Activities of Exosomal Lipids Bilayers","authors":"Nao Nishida-Aoki","doi":"10.5650/OLEOSCIENCE.21.69","DOIUrl":"https://doi.org/10.5650/OLEOSCIENCE.21.69","url":null,"abstract":": Exosomes, lipid bilayer vesicles secreted from almost all cells, have emerged as a novel signal mediator of cell-to-cell communication. Lipids are essential components of exosomes to outline the boundaries of exosomes and to sequester their components from the external environment. Addi-tionally, recent studies have suggested that exosomal lipids engage in exosome formation, uptake, and signal transduction to receiver cells. Lipids consisting of exosomal membrane are similar to those of cellular membrane, but some lipids seem to be actively enriched in exosomes, indicating a selective lipid loading system during exosome formation. Despite the importance and intriguing biological functions, the lipid composition of exosomes is less studied than other components due to technical diffi-culties. Here I summarize current knowledge and limitations of lipid studies of exosomes.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88570338","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}
引用次数: 0
How about Thread-like Micelle? 线状胶束呢?
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/OLEOSCIENCE.21.235
Yasushi Yamamoto, K. Taga
{"title":"How about Thread-like Micelle?","authors":"Yasushi Yamamoto, K. Taga","doi":"10.5650/OLEOSCIENCE.21.235","DOIUrl":"https://doi.org/10.5650/OLEOSCIENCE.21.235","url":null,"abstract":": When small portion of surfactant which forms thread-like micelle is added in turbulent flow, drag reduction is occurred and may provide significant savings for electric power. As for screen-ing of the surfactant for the drag reduction, vortex inhibition and viscoelastic recoil were used. While, in oil solution, such as cyclohexane or heptane, reverse thread-like micelle by cationic gemini surfac-tants was stabilized by small portion of water as matrix and was succeeded in the oil gelation. The reverse thread-like oil solution also showed the vortex inhibition and viscoelastic recoil.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73782972","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}
引用次数: 0
Developments and Applications of Photoresponsive Molecular Assemblies 光响应分子组件的研究进展与应用
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/OLEOSCIENCE.21.227
Masaaki Akamatsu, K. Sakai, H. Sakai
{"title":"Developments and Applications of Photoresponsive Molecular Assemblies","authors":"Masaaki Akamatsu, K. Sakai, H. Sakai","doi":"10.5650/OLEOSCIENCE.21.227","DOIUrl":"https://doi.org/10.5650/OLEOSCIENCE.21.227","url":null,"abstract":"連絡者 :赤松 允顕 E-mail :makamatsu@rs.tus.ac.jp 論文要旨:界面活性剤が形成する分子集合体の構造を光刺激により変化させれば,内包した物質の放出制 御が可能となり,薬物や有効成分の送達システムが構築できる。本総説では,これまでに筆者らが開発した 光応答性界面活性剤について紹介する。アゾベンゼン修飾カチオン性界面活性剤は,紫外光および可視光照 射にともなう trans-cis 異性化により臨界ミセル濃度が大きく変化した。桂皮酸修飾光分解性界面活性剤は, 紫外光照射にともない界面物性が変化し,さらに紐状ミセル構造の変化に由来した水溶液粘度や微粒子分散 性の光制御に成功した。オンデマンドな界面物性制御を可能にするため,光応答性界面活性剤の光応答スピー ドの高速化を検討した。紫外光照射にともないロフィンダイマーから生成するロフィルラジカルの再結合反 応は,ミセル内部の閉鎖空間内で高速化することが分かった。両親媒性ロフィンダイマーを用いることで, その水溶液の表面張力を紫外光照射により数スケールで制御することができた。in situ 小角中性子散乱 (SANS)を用いた解析の結果,両親媒性ロフィンダイマーは楕円体ミセルを形成し,紫外光照射 ON-OFF にともない伸張・収縮を高速で繰り返すことが分かった。さらに,このミセル水溶液を用いることで,可溶 化されたモデル薬物を光照射により高速で放出制御できた。 酒井 健一 東京理科大学理工学部先端化学科 〒 278-8510 千葉県野田市山崎 2641","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84982533","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}
引用次数: 0
Self-organization under Nonequilibrium and Open Systems 非平衡和开放系统下的自组织
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/OLEOSCIENCE.21.215
S. Nakata
{"title":"Self-organization under Nonequilibrium and Open Systems","authors":"S. Nakata","doi":"10.5650/OLEOSCIENCE.21.215","DOIUrl":"https://doi.org/10.5650/OLEOSCIENCE.21.215","url":null,"abstract":": Self-organization under nonequilibrium and open systems was reviewed using self-pro-pelled motors of which driving force is the difference in the surface tension. If nonlinearity is intro-duced into the self-propelled systems, autonomy of self-propelled objects is enhanced, and characteris-tic features of self-organization such as pattern formation, oscillation, synchronization, and bifurcation are produced. In this review, I would like to explain the mechanism of self-organized motion in various self-propelled systems.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87060064","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}
引用次数: 0
Toward the Elucidation of the Biological Mechanism for the Pleasant and Unpleasant Taste of Fatty Acids 脂肪酸喜味与苦味的生物学机制探讨
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/oleoscience.21.261
K. Yasumatsu, Mihoko Tada, Yumiko Nagai, Haruka Nakata
{"title":"Toward the Elucidation of the Biological Mechanism for the Pleasant and Unpleasant Taste of Fatty Acids","authors":"K. Yasumatsu, Mihoko Tada, Yumiko Nagai, Haruka Nakata","doi":"10.5650/oleoscience.21.261","DOIUrl":"https://doi.org/10.5650/oleoscience.21.261","url":null,"abstract":": Evidences have been accumulated that the taste organ is involved in the detection of fats since ~2000, because several molecules have been found to detect fatty acids in taste systems. The au-thors reported expression and function of GPR40 (FFAR1) and GPR120 (FFAR4) in mouse tongue to transmit fatty acid information to the brain. Particularly, GPR120 is involved in neural information pathway that plays role in distinguishing fatty acid taste from other primary tastes. The function of GPR120 was first reported to be involved in appetite and feeding control in the intestine through secretion of intestinal peptides, GLP-1. Recently, GPR120 is also reported in gastric ghrelin-expressing cells to suppress ghrelin secretion by fatty-acid stimulation. Taste information of fatty acids is suggested to be induce cephalic phase responses before food has reached the digestion, priming the body for an in-coming fats or oils. As for the relationship between taste and disease, due to poor taste sensitivity, obese and/or diabetic patients have a risk of taking too much lipids and seasonings. In conclusion, it is important to elucidate mechanisms for the pleasant and unpleasant taste of fats because taste is closely related to feeding behavior connecting to lifestyle-related diseases.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73933780","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}
引用次数: 0
Analytical Methods for Plasmalogen Plasmalogen的分析方法
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/oleoscience.21.321
M. Nishimukai, R. Maeba, H. Hara
{"title":"Analytical Methods for Plasmalogen","authors":"M. Nishimukai, R. Maeba, H. Hara","doi":"10.5650/oleoscience.21.321","DOIUrl":"https://doi.org/10.5650/oleoscience.21.321","url":null,"abstract":": Plasmalogen is a subclass of phospholipids widely distributed in the biological world, from anaerobic bacteria to mammals. Although the pathophysiologic roles of Plasmalogen are poorly understood, it has long been implicated in a number of neurodegenerative disorders such as Alzheim-er's disease. Recently, there have been various reports that changes of plasmalogen in the body are in-volved in metabolic diseases associated with oxidative stress and chronic inflammation. Thus, plasma/ serum Plasmalogen is a potential biomarker for these diseases. Here we describe the relationship between plasmalogen and diseases, and the various reports from conventional to new methods of plasmalogen measurement.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75231879","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}
引用次数: 0
Immuno-modulating Biomaterials～Apoptotic Cell-inspired Anti-inflammatory Polymers～ 免疫调节生物材料~凋亡细胞激发的抗炎聚合物~
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/oleoscience.21.447
M. Ebara, Akari Tasaki
{"title":"Immuno-modulating Biomaterials～Apoptotic Cell-inspired Anti-inflammatory Polymers～","authors":"M. Ebara, Akari Tasaki","doi":"10.5650/oleoscience.21.447","DOIUrl":"https://doi.org/10.5650/oleoscience.21.447","url":null,"abstract":"The field of biomaterials has seen a strong rejuvenation due to the new potential to modulate immune system in our body. This special class of materials is called“immunomodulatory biomaterials”. Generally, three fundamental strategies are followed in the design of immunomodulatory biomaterials: (1) immuno-iner t biomaterials, (2) immuno-activating biomaterials, and (3) immuno-tolerant biomaterials. While many applications of immuno-inert biomaterials such as biocompatible medical implants have been already proposed in the past decades, the ability to engineer biological activity into synthetic materials greatly increases the number of their potential uses and improves their per formance in more traditional applications. The major focus of researchers is now set on developing immuno-tolerant biomaterials for anti-inflammatory therapies. In this review, we therefore introduce recent developments of immuno-tolerant biomaterials. Especially we introduce an apoptotic cell membrane inspired polymer and its post-inflammatory ef fects on immune cells in this ar ticle.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86024309","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}
引用次数: 0
Application to Heat Stroke Prevention Technology Based on Visualization of Hemodynamic Changes Using a General Single-Lens Camera 基于通用单镜头摄像机血流动力学变化可视化的中暑预防技术应用
Oleoscience Pub Date : 2021-01-01 DOI: 10.5650/oleoscience.21.377
Keiichiro Yoshida
{"title":"Application to Heat Stroke Prevention Technology Based on Visualization of Hemodynamic Changes Using a General Single-Lens Camera","authors":"Keiichiro Yoshida","doi":"10.5650/oleoscience.21.377","DOIUrl":"https://doi.org/10.5650/oleoscience.21.377","url":null,"abstract":": In these days, the number of patients suffering from heat stroke is increasing. But, to de-termine heat stroke, most people tend to be empirical evidence. Therefore, we recognized the need for technology to prevent heat stroke before it happens. We have converted a single-lens camera into a near-infrared camera to measure the hemodynamic changes before and after exercise. In this study, we measured the IR images from human skin surface and calculated the reflectance images from IR images. And we performed three types of experiments, 1) Forearm measurement in the darkroom, 2) Sole measurement in the darkroom, 3) Outdoor forearm measurement. The results show that the rela-tionship between reflectance images and hemodynamic changes, it was suggested that it could be used as a guide to prevent heat stroke.","PeriodicalId":19666,"journal":{"name":"Oleoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86050588","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}
引用次数: 1
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