Journal of Material Sciences & Engineering最新文献_第7页

Electrochemical Chelation and Reduction of Nitrate Ion on EDTA Modified Carbon Paste Electrode EDTA修饰碳糊电极上硝酸离子的电化学螯合与还原

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000433

J. ElMastour, El Qouatli Se, A. Zaroual, Chtaini Abdelilah

引用次数: 1

Manufacturing of Sheet Gasket using a Paper Making Process without Organic Solvents 用无有机溶剂造纸工艺制造薄板衬垫

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000445

Seong Min Park, Hyenjong Lee, Sang Hoon Lee, Sung Kim, Yoonjong Yoo

引用次数: 0

Characterization of 3D Printed PLA/PCL/TiO 2 Composites for Cancellous Bone 3D打印PLA/PCL/ tio2松质骨复合材料的表征

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000417

S. Nájera, Mónica Michel, J. Kyung-Hwan, N. Kim

{"title":"Characterization of 3D Printed PLA/PCL/TiO 2 Composites for Cancellous Bone","authors":"S. Nájera, Mónica Michel, J. Kyung-Hwan, N. Kim","doi":"10.4172/2169-0022.1000417","DOIUrl":"https://doi.org/10.4172/2169-0022.1000417","url":null,"abstract":"The reproduction of a 3D bone structure with suitable porosity, which allows the flow of nutrients, blood, oxygen and mineral, remains a problem using conventional methods. A material that mimics their properties was developed by optimizing the ratio of a biodegradable blend of immiscible polylactic acid (PLA) and poly-e-caprolactone (PCL). In this study, PLA and PCL particularly optimize the strength of the artificial cancellous bone by supplying the initial support strength lasting 6 months to 2 years and allowing for the gradual degradation desired in the human body. This study focused on the mechanical properties of successfully printed 3D structures. The ultimate tensile strength was modified by blending different ratios of PLA and PCL resulting in an optimum value of approximately 30 MPa when the ratio of PLA to PCL reached 3:1. The addition of 1 wt.% of titanium dioxide (TiO2) to the immiscible PLA/PCL composite and the modification of the interface area between them resulted in the formation of a binding force that allowed for an increase in the tensile strength up to 37 MPa. Besides the mechanical properties, the in vitro biocompatibility of PLA/ PCL/TiO2 composites was examined. A vigorous cell growth was observed in the cells cultivated with the PLA/PCL/TiO2 composites and the unimpeded ability to differentiate into osteoblast also was found. The resulting properties of the 3D printed structures indicate promising applications in the fields of bone tissue engineering and cancellous bone grafting.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"23 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89026897","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: 7

Mechanism of Ultra-Fast Actin-Myosin Sliding Producing Cytoplasmic Streaming in Giant Algal Cell, Studied Using the Centrifuge Microscope 离心显微镜下巨藻细胞超快速肌动蛋白-肌球蛋白滑动产生细胞质流动的机制研究

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000426

S. Chaen, H. Sugi

{"title":"Mechanism of Ultra-Fast Actin-Myosin Sliding Producing Cytoplasmic Streaming in Giant Algal Cell, Studied Using the Centrifuge Microscope","authors":"S. Chaen, H. Sugi","doi":"10.4172/2169-0022.1000426","DOIUrl":"https://doi.org/10.4172/2169-0022.1000426","url":null,"abstract":"In giant intermodal cells of green algae Chara collaria, cytoplasmic streaming is produced by ATP-dependent sliding between myosin heads extending from amorphous cytoplasmic organelles and actin filament arrays (actin cables) fixed on chloroplast rows. The velocity of cytoplasmic streaming is many times faster than the maximum myofilament sliding in skeletal muscle. In this article, we compared steady-state force-velocity (P-V) relations between cytoplasmic myosin and skeletal and cardiac muscle myosins using the centrifuge microscope, in which myosincoated latex beads were made to slide along the actin cables under various centrifugal forces. In contrast with the hyperbolic P-V relation of actin-myosin sliding in skeletal and cardiac myosins, the P-V relation of cytoplasmic myosin versus actin cable sliding was a straight line, indicating a very large duty ratio and a very small rate of chemomechanical energy conversion. Possible mechanisms of the ultra-fast actin-myosin sliding are discussed.Highlights• The velocity of cytoplasmic streaming, caused by ATP-dependent sliding between cytoplasmic myosin and actin cables in giant algal cells is many times faster than ATP-dependent actin-myosin sliding in skeletal and cardiac muscles.• The mechanism of ultra-fast actin-myosin sliding was studied using the centrifuge microscope, in which beads coated with cytoplasmic myosin were made to slide along actin cables under various centrifugal forces serving as loads against cytoplasmic myosin versus actin cable sliding.• Unlike the hyperbolic force-velocity (P-V) relation of skeletal and cardiac muscle actin-myosin sliding, the P-V relation of cytoplasmic actin myosin sliding was a straight line irrespective of the force generated by cytoplasmic myosin.• These results indicate a very large duty ratio and a very small efficiency of chemo-mechanical energy conversion in cytoplasmic actin-myosin sliding.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"16 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88852738","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

A Study on the Effect of Surface Grinding on Chloride Induced Pitting Initiation of Austenitic Stainless Steel 304 under Thermal Insulation at Ambient Temperature 常温保温条件下表面磨削对奥氏体不锈钢304氯致点蚀的影响研究

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000412

P. Sivanathan

引用次数: 0

Low Pressure Plasma Processing of Collagen Membranes for Anti-Cancer Drug Delivery 用于抗癌药物传递的胶原膜的低压血浆处理

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000499

A. Baitukha, Iman Al-dybiat, Azadeh Valinataj-Omran, J. Pulpytel, M. Pocard, Massoud Mirsha’shi, F. Arefi-Khonsari

引用次数: 2

Synthesis of Chromium Doped Cobalt Oxide (Cr:Co 3 O 4 ) Nanoparticles by Co-Precipitation Method and Enhanced Photocatalytic Properties in the Visible Region 共沉淀法合成铬掺杂氧化钴纳米颗粒及增强可见光区的光催化性能

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000419

G. Hitkari, S. Sandhya, P. Gajanan, M. K. Shrivash, Deepak Kumar

引用次数: 29

Growth of Columnar Co 3 Pt Strucrure with Ru Buffer Layer at Room Temperature 含Ru缓冲层的柱状co3pt结构的室温生长

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000436

A. Sun

引用次数: 1

A Review on the Laser-Assisted Flow Deposition Method: Growth of ZnO Nanostructures 激光辅助流动沉积法制备ZnO纳米结构的研究进展

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000442

J. Rodrigues, Fernandes Ajs, T. Monteiro, F. Costa

{"title":"A Review on the Laser-Assisted Flow Deposition Method: Growth of ZnO Nanostructures","authors":"J. Rodrigues, Fernandes Ajs, T. Monteiro, F. Costa","doi":"10.4172/2169-0022.1000442","DOIUrl":"https://doi.org/10.4172/2169-0022.1000442","url":null,"abstract":"Zinc oxide (ZnO) is a versatile semiconductor with major importance from the technological point of view, especially in fields of electronics and optoelectronics, due to its unique properties, namely wide band gap (3.37 eV at room temperature) and large exciton binding energy (60 meV). Moreover, this material can be grown by a large number of techniques and possess one of the richest varieties of morphologies. Due to its high vapour pressure and the fact that ZnO decomposes into atomic components near its melting temperature (1977°C) at atmospheric pressure, the vapour-based methods have been extensively explored. The method described in this paper, Laser- Assisted Flow Deposition (LAFD), has not been well explored until now and can be included in this group. This technique proved to be efficient in the production of ZnO micro/nanocrystals with different morphologies and with a very high crystalline and optical quality. This new process allows high yield of ZnO production, showing great prospects for scalable applications. In the present work, we review in detail the main growth parameters and their relationship with the produced morphologies, in addition to their influence in the structural and optical properties of the crystals. Furthermore, an assessment of the possible growth mechanisms that may be involved is reported. Some potential applications of the ZnO structures produced by LAFD were also evaluated, with focus on the photo catalysis and photovoltaic fields. Additionally, the possibility of synthesizing ZnO composite.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"140 1","pages":"1-20"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86739427","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 Alkaline Pre-Treatment and Temperature on Cotton Uptake of Sorghum Husk Extract 碱性预处理和温度对高粱皮浸膏棉花吸收的影响

Journal of Material Sciences & Engineering Pub Date : 2018-01-01 DOI: 10.4172/2169-0022.1000447

Jakpa Wizi, Gangwei Pan, Xiuliang Hou, Yiqi Yang

{"title":"Effect of Alkaline Pre-Treatment and Temperature on Cotton Uptake of Sorghum Husk Extract","authors":"Jakpa Wizi, Gangwei Pan, Xiuliang Hou, Yiqi Yang","doi":"10.4172/2169-0022.1000447","DOIUrl":"https://doi.org/10.4172/2169-0022.1000447","url":null,"abstract":"Sorghum is a staple food around the world. As the demand for the grain soars, there is an equivalent increase in the quantity of sorghum husk generated. Sorghum husk is a promising resource as a natural functional dye. Sorghum is enriched with phytochemicals such as tannins, phenolic acids and anthocyanins which have health benefits. Colorant from the husk was used to dye cotton. Cotton was pretreated with alkaline and dyed at a temperature range of 80°C-130°C. An untreated sample was used as control. The colorant was extracted from Sorghum husk with ultrasound-microwave machine and 70% ethanol//30% water with 1ml HCl per 100 ml as solvent at 55°C for 20 mins. The extraction yield was yield of 16.7%. Ultrasound-microwave-assisted extraction method with blended solvent 70% ethanol/30% water with HCl significantly improved extraction of biocolorants from sorghum husk. The extracted colorant was used to dyed alkaline treated fabric and the fabric had better colorfastness to laundry, crocking and light and better UV protection. The optimum dyeing temperature was 100°C. The use of sorghum husk as a source of colorant can find application in industry and significantly add value to the sorghum plant and reduce the disposal of sorghum husk.","PeriodicalId":16326,"journal":{"name":"Journal of Material Sciences & Engineering","volume":"1 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74418075","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