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Item Studies on Ion Conducting Membranes for Electrochemical Applications(2012-05-30T09:41:19Z) PRAKASH S.In the course of the current study we found that the stabilized new nanocomposites can be formulated for enzyme free glucose sensor using a poly (dimethylaniline), SPEEK and copper nanoparticles. The SPEEK/PDMA/CuNFs/GCE fabricated sensor electrochemically boasts a number of advantages such as high sensitivity, good stability,reproducibility, and quick response. Excellent selectivity was rendered by the nanocomposites film and signals from oxidation of common interfering species such as UA and AA can be effectively suppressed. The remarkable performance was attributed to synergistic electrocatalytic activity combining a CuNFs and PDMA in the presence of SPEEK, and the large electro-active surface area of CuNFs. Also, the developed sensor is a potential candidate for routine glucose analysis in real blood serum samples. This methodology would be extended for the development of other biosensors.Item Design and Syntheses of New Receptor Molecules for Recognition of Biologically Important Ions and Studies on Supramolecular Self-assembly(2012-05-30T09:27:48Z) Mahato, PrasenjitIn summary, a series of novel Ru(bpy)32+ based symmetrical amphiphilic complexes 1, 2, and 3 containing three C18, C14 and C10 chains, respectively, at equilateral positions formed vesicles in polar aqueous-methanol (9:1; v/v) medium and reverse vesicles in nonpolar medium like toluene and cyclohexane. These vesicles and reverse vesicles were characterised by DLS, SLS, AFM and TEM studies. AFM and TEM confirmed the spherical and hollow nature of these aggregates. Aggregate formation was also confirmed by dye encapsulation and photophysical studies in respective solutions.Item Studies on Physiological stress and their biochemical response in seaweeds(2012-05-03T06:11:22Z) Kumar, ManojSeaweeds are assemblage of diverse group of plants predominantly occur in coastal waters. Owing to their sessile nature, intertidal seaweeds in general developed strategies to withstand diverse stresses resulting from variations in desiccation, ultraviolet radiation, salinity, temperature and anthropogenic activities (heavy metal pollution and other toxicants like Ionic liquids). The capacity of algae to tolerate different types of abiotic stress has been related to their vertical distribution along the intertidal gradient. Despite the basic scientific interest in physiological responses of algae to environmental stresses, the metabolic pathways involved and the fundamental biochemical responses implicated in the tolerance mechanisms have not been investigated in detail.Item Molecular and Biochemical Characterization of Indian Species of Gracilaria (Gracilariales, Rhodophyta)(2012-05-02T10:14:27Z) Pareek, MadhuIt is concluded that species delimitation is truly reliable when based on combination of characters (morphological, anatomical, biochemical and molecular). Therefore, in this study molecular and biochemical techniques have been employed for confirming the taxonomic status of nine different Gracilaria species of Gujarat coast.Item Catalytic and Ion-exchange Applications of Hydrotalcite-like Materials(2012-05-02T09:58:10Z) Jinesh, C.M.Hydrotalcite-like (HT-like) materials, otherwise referred in literature as layered double hydroxides (LDHs), find versatile application in different fields as catalysts, catalyst supports,ion-exchangers/adsorbents, composite materials, drug carriers, functional materials and in batteries. With their different and interesting set of properties, they are efficient catalysts for wide range of organic reactions, in particular for base-catalysed reactions. Good knowledge on structure-activity relation for these materials, the number and strength of basic sites of these materials can be tuned precisely to cater a specific reaction. In addition, the interlayers of these materials are good host for anions and this property can be explored for anionic pollutant removal. In this doctoral thesis both the catalytic and ion-exchange ability of HT-like materials were explored for fine chemical synthesis and toxic anion removal.Item Studies on Micropropagation and Molecular Analysis of Jatropha curcas Provenances(2012-05-02T09:45:03Z) Singh, SwetaIn this study, RAPD and AFLP markers were applied for the first time as a tool for the assessment of somaclonal variation in the in vitro micropropagated shoot in different genotypes/provenances of J. curcas. This will not only allow advocating for how long the cultures can be safely maintained but also detect and separate the possible cross contamination of culture from different genotype.Item Studies on the central mechanism of Phycobiliprotien production in Cyanobacteria(2012-02-15T06:10:15Z) Pawar, RichaItem Isolation and characterization of bacteria tolerant to organic solvent for their exploitation in bioremediation(2012-02-13T06:30:54Z) Shah, Kunal N.Total twenty five organic solvent tolerant bacteria (OSTB) have been isolated from six different sites. Polyphasic approach was employed for identification of OSTB including morphological and biochemical characterization, fatty acid profiling and 16S rRNA gene sequencing. Amongst them, twenty belonged to Bacillus spp., two to Micrococcus sp., and one each of Geobacillus sp., Terribacillus sp., and Staphylococcus sp. Thus, Bacillus group of species are dominating in this study. With this approach we could identify 19 isolates up to species level while six OSTB could be identified only up to genus level (Bacillus). Hence, future study in this direction using the latest techniques like DNA-DNA hybridization would lead to proper identification of these isolates and might help in establishing the relationship with known Bacillus spp.Item Studies on the interaction of chiral transition metal complexes with DNA and protein(2012-01-23T11:07:46Z) Pandya, Nirali RasikbhaiItem Studies on the novel oxidative methods using green bromine as an alternative approach for functional group transformation reactions in organic synthesis(2011-12-26T11:04:54Z) Patil, Rajendra D.Item A green protocol for the synthesis of industrially important compounds through oxidative bromination reactions compounds(2011-12-26T11:01:06Z) Joshi, GirdharItem Studies on the use of polyvinylalcohol in pressure and potential driven membranes(2011-11-23T06:35:59Z) Gohil, JaydevsinhItem Synthesis of Biocidal Polymers for Disinfecting Drinking Water(2011-11-18T10:47:31Z) Gangadharan, D.The amidoxime functional copolymer beads form a stable solid support for the formation of Cu/Cu2O particles. The interaction of copper particles on the copolymer bead with the water shows a change in colour from reddish brown to green due to the hydration of cuprous oxide formed on the surface of the bead.Item Synthesis and Characterization of Chiral Inorganic Metal Complexes as Active Catalysts for Enantioselective Synthesis of Chiral Beta-Amino alcohols via Epoxide-Ring Opening Reaction(2011-11-16T10:02:24Z) Prathap, K.Jeyaan efficient synthetic strategy for the preparation of new chiral macrocyclic Cr(III) salen complexes has been demonstrated. Among all the complexes prepared complex 34 showed excellent activity and enantioselectivity in AKR of racemic trans epoxides and ARO of meso epoxides with anilines as nucleophile at RT and the results are found to be superior than the monomeric and polymeric Cr(III) salen complexes as reported earlier for these reactions. Additionally, the macrocyclic Cr(III)salen complex 34 was efficiently recovered and reused several times and scaled up to 10 mmol.Item Synthesis and Characterisation of Chiral salen Transition Metal Complexes as Enantioselective Epoxidation Catalyst(2011-11-16T09:13:26Z) Singh, Surendra SinghHydrolytic kinetic resolution (HKR) of racemic alkene epoxide is an attractive strategy for the synthesis of valuable enantiopure terminal epoxide and corresponding diol in single step as racemic epoxides are inexpensive and commercially easily available. Both terminal epoxides and their respective diols in chirally pure form have wider applications both in academic and industrial context.Item Chemical Studies on the polysaccharides of some Phaeophycean seaweed species of Indian coast with special reference to Aliganate(2011-10-15T06:46:20Z) Chhatbar, Mahesh U.Item Studies on Regeneration and Genetic Transformation in Jatropha curcas(2011-10-15T06:40:19Z) Kumar, NitishJ.curcas is one of the most important plant species of the world valued for its biofuel property, belongs to the family Euphorbiaceae. The species is primarily propagated through seeds, and thus the seed yield and oil content varies significantly. Propagation can also be carried out without losing the traits by stem cutting but the limitation is generation of large scale quality planting material. Thus, conventional propagation through seeds is not reliable and vegetative cuttings are inadequate to meet the demand of large scale quality planting material. Therefore, Jatropha improvement programme by modern methods of agrobiotechnology are of interest worldwide. Camara Machado has reported that regeneration in J. curcas is highly genotype dependent. Concerted efforts are being made to optimize genotype independent regeneration and genetic transformation protocol.Item Production, purification and characterization of the biopolymer (PHA’s) from biodiesel byproduct (glycerol) by microbes(2011-10-14T06:59:57Z) Shrivastav, AnupamaItem STUDIES ON PHYCOERYTHRIN FROMMARINE ALGAE FROM SOUTHWEST COAST OF INDIA(2011-10-14T06:58:03Z) Mishra, Sanjiv Kumar
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