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351篇 您的检索式:作者名="Ramakrishna R"
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1功能化纤维素:PET纤维沸石分子筛复合材料对神经毒剂的解毒性研究(英文)显示文摘Presently activated carbon is used as an adsorptive material for chemical and biological warfare agents. It possess excellent surface properties such as large surface area, fire-resistance and plenty availability, but has disadvantages such as its heavy weight, low breathability (after adsorption of moisture) and disposal. In this paper, we propose to utilize novel electrospun polymeric nanostructures having zeolites as catalyst materials. In this respective, the electrospun polymer nanofibers would serve as the best possible substitutes to activated carbon based protective clothing applications. This is the first in the literature that reports the integration of these types of catalysts with nanofiberous membranes. Electrospinning of cellulose/polyethylene terephthalate (PET) blend nanofibers has been carried out. Zeolite catalysts (Linde Type A and Mordenite) for the detoxification of nerve agent stimulant-paraoxon, were prepared due to their relative simplicity of synthesis. The catalysts were then coated onto nanofiber membranes and their morphology was confirmed using SEM. This is the first report on the coating of nanofibers with zeolites and their successful demonstration against nerve agent stimulant. The UV absorption spectra clearly show the detoxification ability of the functionalized fibers and their potential to be used in textiles for protection and decontamination.Agarwal Satya R Sundarrajan Subramanian Ramakrishna Seeram 2012无机材料学报2012,27,3:2
2G-protein coupled receptors and synaptic plasticity in sleep deprivation显示文摘Insufficient sleep has been correlated to many physiological and psychoneurological disorders.Over the years,our understanding of the state of sleep has transcended from an inactive period of rest to a more active state involving important cellular and molecular processes.In addition,during sleep,electrophysiological changes also occur in pathways in specific regions of the mammalian central nervous system(CNS).Activity mediated synaptic plasticity in the CNS can lead to long-term and sometimes permanent strengthening and/or weakening synaptic strength affecting neuronal network behaviour.Memory consolidation and learning that take place during sleep cycles,can be affected by changes in synaptic plasticity during sleep disturbances.G-protein coupled receptors(GPCRs),with their versatile structural and functional attributes,can regulate synaptic plasticity in CNS and hence,may be potentially affected in sleep deprived conditions.In this review,we aim to discuss important functional changes that can take place in the CNS during sleep and sleep deprivation and how changes in GPCRs can lead to potential problems with therapeutics with pharmacological interventions.Shweta Parmar Ramakrishna Tadavarty Bhagavatula R Sastry 2021World Journal of Psychiatry2021,11,11:2
3Fabrication and characterization of a boehmite nanoparticle impregnated electrospun fiber membrane for removal of metal ions 显示文摘Garudadhwaj Hota B R Kumar Ramakrishna Wjns 2008Journal of Materials Science2008,302,12:1
4Elitism-based compact genetic algorithms显示文摘Ahn Chang wook and Ramakrishna R S 2003IEEE Transactions on Evolutionary Computation2003,7,4:1
5A, Genetic Algorithm for Shortset Path Routing Problem and the Sizing of Popula- tions显示文摘Ahn C W Ramakrishna R S 2002IEEE Transactions on Evolutionary Computation2002,6,6:1
6A genetic algorithm for shortest path routing probolem and the sizing of populations显示文摘Ahn C C W Ramakrishna R S 2002IEEE Trans on Evolutionary Computation2002,6,6:1
7Elitism- based compact genetic algorithms显示文摘Chang Wook Ahn R S Ramakrishna 2003IEEE Transactions on Evolutionary Computation2003,7,4:1
8Nanofibrous filter- ing media: Filtration problems and solutions from tiny ma- terials显示文摘BARHATE R S RAMAKRISHNA S 2007Journal of Membrane Science2007,296,12:1
9Chemi- cal and scanning electron microscopic studies of wheat whole- meal and its streams from roller flour mill显示文摘Gangadharappa G H Ramakrishna R Prabhasankar P 2008Journal of Food Engineering2008,85,:1
10Characterizing the metabolic phenotype:a phenotype phase plane analysis显示文摘Edwards JS Ramakrishna R Palsson BO 2002Biotechnol Bioeng2002,77,1:1
11Crystallographic Study of Hydroxyapatite Biocemmics Derived from Various Sources显示文摘Murugan R Ramakrishna S 2005Crystal Growth & Design2005,5,1:1
12Development of nanocomposites for bone grafting 显示文摘Murugan R Ramakrishna S 2005Composites Science and Technology2005,65,15:1
13Controlled synthesis and application of ZnO nanoparticles, nanorods and nanospheres indye-sensitized solar cells显示文摘Z L S Seow A S W Wong V Thavasi R Jose S Ramakrishna G W Ho 2009Nanotechnology2009,,4:1
14显示文摘Krishnamoorthy P R Narayana B H Ramakrishna T V 1992Met Finish1992,,1:1
15Aqueous mediated synthesis of hioresorhahle nanocrystalline hydroxyapatite 显示文摘Murugan R Ramakrishna S 2005Journal of Crystal Growth2005,274,:1
16SCP production and removal of organic load from cassava starch industry by yeasts 显示文摘JAMUNA R RAMAKRISHNA : V 1989JFerment Bioeng1989,67,2:1
17Aligned biodegradable nanofibrous structure: a potential scaffold for blood vessel engineering显示文摘C.Y Xu R Inai M Kotaki S Ramakrishna 2003Biomaterials2003,,5:1
18Dye removal using low cost adsorbents显示文摘Ramakrishna Konduru R Viraraghavan T 1997Water Science and Technology1997,36,23:1
19Biosorption of chromium Ⅵ by free and immobilized Rhizopus arrhizus 显示文摘Prakasham R S Merrie J S Sheela R Saswathi N Ramakrishna S V 1999Environmental Pollution1999,104,3:1
20Dye Removal using low cost adsorbents 显示文摘Ramakrishna K R Viraraghavant T 1997Water Science Technology1997,36,2:1
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