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Effect of lysozyme subphase and insertion on several lipid films 溶菌酶亚相及插入对几种脂质膜的影响
Advanced Material Science Pub Date : 2019-06-01 DOI: 10.15761/ams.1000149
J. Torrent-Burgués, R. Raju
{"title":"Effect of lysozyme subphase and insertion on several lipid films","authors":"J. Torrent-Burgués, R. Raju","doi":"10.15761/ams.1000149","DOIUrl":"https://doi.org/10.15761/ams.1000149","url":null,"abstract":"The influence of proteins on lipid monolayers is a subject of biological interest. In this work the influence of lysozyme on lipid films of stearic acid, oleic acid, cholesterol, DPPC and POPC has been studied. The Langmuir monolayer technique, using surface pressure-area isotherms and elastic modulus plots, as well as protein insertion experiments in lipid monolayers, have been used. Results indicate that lysozyme affects the lipid monolayer formation, the elastic modulus and, sometimes, the physical state of the monolayer. This influence is more important till moderate surface pressures. At high surface pressures and near the physiological value of lateral pressure of 33 mN/m, there is expulsion of lysozyme out of the monolayer. This expulsion is more important for stearic acid, DPPC and POPC. The lower value of maximum insertion pressure is for stearic acid and the higher one is for oleic acid. The relation between the initial and the increased surface pressure in insertion experiments has been analysed","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130715456","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: 18
Nano-materials as anode electrocatalysts for microbial fuel cells 纳米材料作为微生物燃料电池阳极电催化剂
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000156
Weishan Li
{"title":"Nano-materials as anode electrocatalysts for microbial fuel cells","authors":"Weishan Li","doi":"10.15761/ams.1000156","DOIUrl":"https://doi.org/10.15761/ams.1000156","url":null,"abstract":"Recent progresses made in our laboratory on nano-materials as electrocatalysts for microbial fuel cells are summarized in this review. Compared to the cathode electrocatalysts for oxygen reduction reaction, which are similar to those used for other fuel cells such as proton exchange membrane fuel cells, our interest is mainly focused on the anode electrocatalysts with the aim to accelerate the charge transfer process on anodes. Various nano-materials have been developed in our laboratory as anode electrocatalysts, based on the concept that the charge transfer kinetics between anode and substrates is highly dependent of the bio-compatibility that favors the formation of biofilm on anode, and electrocatalytic activities towards the oxidation reactions of the redox couples in bacteria and the intermediates fermented by bacteria. *Correspondence to: Weishan Li, National and Local Joint Engineering Research Center of MPTES in High Energy and Safety LIBs, Engineering Research Center of MTEES (Ministry of Education), and Key Lab. of ETESPG(GHEI), South China Normal University, Guangzhou 510006, China, Email: liwsh@scnu.edu.cn","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131635405","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
Formation of branched structure of polyimide macromolecules in the temperatures range below the onset of the thermal destruction 形成支链结构的聚酰亚胺大分子在温度范围以下开始热破坏
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000150
V. Svetlichnyi, I. Gofman, A. Didenko, Elena Vlasova
{"title":"Formation of branched structure of polyimide macromolecules in the temperatures range below the onset of the thermal destruction","authors":"V. Svetlichnyi, I. Gofman, A. Didenko, Elena Vlasova","doi":"10.15761/ams.1000150","DOIUrl":"https://doi.org/10.15761/ams.1000150","url":null,"abstract":"The film samples of poly-[4,4'-bis(4\"-N-phenoxy)biphenyl-sulfone]imide1,3-bis(3',4-dicarboxyphenoxy)benzene obtained both by two-step synthesis and by onestep high temperature synthesis in N-methyl-2-pyrrolidone solution were used to study the formation of the interchain crosslinks in this soluble polyimide in the temperature range of 250-300°C. Just in this region a final stage of the thermal treatment of different polyimide materials takes place during their processing. A possible crosslink formation mechanism has been put forward to present the adequate explanation of the experimental data obtained in the work. A simple technological way is offered to avoid the unfavourable effect above. *Correspondence to: Iosif Gofman, Institute of Macromolecular Compounds, Russian Academy of Sciences, 31, Bol’shoi str. (V.O.), St. Petersburg, 199004, Russia, Tel: +7(812)328-8511; E-mail: gofman@imc.macro.ru","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131362364","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
Effect of gabapentin on postoperative pain control after a cesarean delivery: a pilot randomized controlled trial 加巴喷丁对剖宫产术后疼痛控制的影响:一项随机对照试验
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/jaa.1000121
Tienne Randolf, Cindy A Evrard, Harini Gurram, David M Haas, Amy Dorwart, Nicole Ngo
{"title":"Effect of gabapentin on postoperative pain control after a cesarean delivery: a pilot randomized controlled trial","authors":"Tienne Randolf, Cindy A Evrard, Harini Gurram, David M Haas, Amy Dorwart, Nicole Ngo","doi":"10.15761/jaa.1000121","DOIUrl":"https://doi.org/10.15761/jaa.1000121","url":null,"abstract":"Background: Opioid dependence has risen dramatically and is becoming more common in pregnant women. Finding adjunct methods to reduce the need for postoperative opioid pain medications is needed. The objective of this pilot trial was to evaluate if administration of gabapentin after cesarean delivery would decrease postoperative opiate requirements and pain scores. Methods: This was a pilot, triple-blind, placebo-controlled, randomized trial. Women undergoing a non-emergent repeat cesarean delivery who only planned to bottle feed The primary outcome was opiate consumption in the acute postoperative period. pain that were converted to morphine equivalents for statistical analysis. The secondary outcomes assessed included pain scores and events.","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114202869","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 of horse-derived placental peptides in cosmetics 马源胎盘肽在化妆品中的应用
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000151
K. Wakame, A. Nakata, Keisuke Sato, K. Komatsu, T. Maruta
{"title":"Application of horse-derived placental peptides in cosmetics","authors":"K. Wakame, A. Nakata, Keisuke Sato, K. Komatsu, T. Maruta","doi":"10.15761/ams.1000151","DOIUrl":"https://doi.org/10.15761/ams.1000151","url":null,"abstract":"The placenta is a tissue mass formed in the uterus. It is an indispensable organ that is responsible for the transportation of blood required for fetal growth. Horse placenta has been used in the health food and cosmetic fields in recent years. We enzymatically treated horse placenta and obtained placental peptides with molecular weights < 3,000 Da. We mainly performed the in vitro experiments using human fibroblasts. We confirmed that placental peptides primarily activate the mitochondria of human fibroblasts and promote the production of type I collagen. Therefore, we suggest the use of placental peptides as materials that contribute to the improvement of skin elasticity and reduction of wrinkles in the cosmetic field. *Correspondence to: Koji Wakame, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, 15-4-1,Maeda 7-jo, Teine-ku, Sapporo-shi, Hokkaido 006-0085, Japan, Tel: +81(11) 676 8682; Fax: +81 (11) 676 8666; E-mail: wakame-k@hus.ac.jp","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"64 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129586803","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
Physical, mechanical, thermal and morphological analysis of date palm mat (DPM) and palmyra palm fruit (PPF) fiber reinforced high density polyethylene hybrid composites 枣棕榈垫(DPM)和棕榈果(PPF)纤维增强高密度聚乙烯杂化复合材料的物理、力学、热及形态分析
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000153
Afroza Khatun M, S. S, Parvin Nur H, Sarwaruddin Chowdhury AM
{"title":"Physical, mechanical, thermal and morphological analysis of date palm mat (DPM) and palmyra palm fruit (PPF) fiber reinforced high density polyethylene hybrid composites","authors":"Afroza Khatun M, S. S, Parvin Nur H, Sarwaruddin Chowdhury AM","doi":"10.15761/ams.1000153","DOIUrl":"https://doi.org/10.15761/ams.1000153","url":null,"abstract":"In this work, date palm mat (DPM) and palmyra palm fruit (PPF) fibers were incorporated to high density polyethylene (HDPE) for the fabrication of hybrid composites. The composites were prepared by compression molding at different weight % (5, 10, 15, 20 and 25 wt %) of fiber contents. Physical, mechanical and soil degradation properties were studied. Thermal properties, scanning electron microscopy (SEM) and Fourier-transform infrared (FT-IR) analysis of the 100% HDPE and hybrid composites were also done. The results from experiments indicate that the properties of the hybrid composites at 5% fiber content are better than 100% HDPE.","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114815467","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: 5
Converting the langmuir trough into an interfacial rheometer 将朗缪尔槽转换成界面流变仪
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000146
Ernesto Javier Grasso
{"title":"Converting the langmuir trough into an interfacial rheometer","authors":"Ernesto Javier Grasso","doi":"10.15761/ams.1000146","DOIUrl":"https://doi.org/10.15761/ams.1000146","url":null,"abstract":"","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114710881","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
Preparation, characterization, and application in water purification of g-C3N4/I-TiO2 composite photocatalysts g-C3N4/I-TiO2复合光催化剂的制备、表征及其在水净化中的应用
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000148
Mohammed Q Alfaifi, Abdulaziz A Bagabas
{"title":"Preparation, characterization, and application in water purification of g-C3N4/I-TiO2 composite photocatalysts","authors":"Mohammed Q Alfaifi, Abdulaziz A Bagabas","doi":"10.15761/ams.1000148","DOIUrl":"https://doi.org/10.15761/ams.1000148","url":null,"abstract":"","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115966228","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
Development and characterization of new XLPE compounds for high performance cables in the automotive industry 用于汽车行业高性能电缆的新型XLPE化合物的开发和表征
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000152
J. Rompante, A. Vieira, F. Amaral, Pinedo Aa, J. Goncalves, E. Oliveira, Conceição Ds
{"title":"Development and characterization of new XLPE compounds for high performance cables in the automotive industry","authors":"J. Rompante, A. Vieira, F. Amaral, Pinedo Aa, J. Goncalves, E. Oliveira, Conceição Ds","doi":"10.15761/ams.1000152","DOIUrl":"https://doi.org/10.15761/ams.1000152","url":null,"abstract":"The materials employed in the electrical insulation of cables/wires used in the automotive industry are exposed to several external factors that may affect the overall performance of the system. These factors include mechanical vibrations, high temperature, humidity, wind and rain. In order to have a stable and trustworthy solution, these materials need to follow specific criteria in what regards their abrasion, thermal and chemical resistance, flame retardancy, and mechanical properties. In this work, new crosslinked polyethylene (XLPE) compounds were developed by means of compound extrusion, using peroxide crosslinking, and also different polymeric matrices. Ultimately, blends of ethylene-vinyl-acetate (EVA) and low density polyethylene (LDPE) with alumina trihydrate (ATH) and magnesium hydroxide (MH), exhibited a significant increase in both the oxidation-induction time – higher than 95 min (OIT), and abrasion resistance (sandpaper abrasion) – approximately 38.1 g, while maintaining a low density profile and fair mechanical properties, when compared with the selected standard material, based on a ATH-additivated EVA material. These findings show that such material can be considered as a promising and suitable candidate for high performance cables.","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116201326","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
An unpresented approach to ameliorate swine waste contamination 一种未提出的改善猪粪污染的方法
Advanced Material Science Pub Date : 1900-01-01 DOI: 10.15761/ams.1000158
W. C. Chen, T. Yeh
{"title":"An unpresented approach to ameliorate swine waste contamination","authors":"W. C. Chen, T. Yeh","doi":"10.15761/ams.1000158","DOIUrl":"https://doi.org/10.15761/ams.1000158","url":null,"abstract":"Piggery waste is one the tree major water pollution sources in Taiwan. Piggery waste should be viewed as resource and not waste. Conventionally, three stage wastewater treatments are too costly and hard to operate. Direct application to soil can be a remedy if the application rate is careful managed. Generally, wastewater from the piggery industry is treated in three stages: liquid solid separation, anaerobic digestion and then aerobic treatment. However, this process is difficult due to high cost and difficult operation. Therefore, a feasible method was to establish a centralized methane production facility for the treatment of piggery industrial waste. The products after treated like methane and fertilize are utilized as clean and environmentally friendly products. Methane can be used for cooking or electricity generation. This is a new direction suitable for sustainable development. Three stage piggery waste water treatment including soil liquid separation, anaerobic digestion and then aerobic treatment which is not well received and popular due to costly and difficult operation in Taiwan. Particularly, the anaerobic component is always a headache. Taiwan EPA ambitiously launches piggery manure direct apply to soil policy. It might the panacea to water pollution control. The feasible approach is to set a centralized methane production facility to purify, electricity as well as heat generation, and gay for motor. With the major pollutants such as odors, BOD, TN and TS, waste from the piggery industry has been seriously affecting the environment in Taiwan. However, if this amount of waste is properly treated, it will bring great benefits and can be considered as a resource.","PeriodicalId":217415,"journal":{"name":"Advanced Material Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130501407","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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