Jashmini Deka
Indian Institute of Technology Guwahati
11 Papers
98 Citations
Jashmini Deka is an academic researcher from Indian Institute of Technology Guwahati. The author has contributed to research in topics: Colloidal gold & Chemistry. The author has an hindex of 9, co-authored 11 publications. Previous affiliations of Jashmini Deka include Indian Institutes of Technology & Elettra Sincrotrone Trieste.
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Papers
Retention of Enzymatic Activity of α-Amylase in the Reductive Synthesis of Gold Nanoparticles
Abhijit Rangnekar,Tridib K. Sarma,Atul K. Singh,Jashmini Deka,Aiyagari Ramesh,Arun Chattopadhyay +5 more
TL;DR: The generation of Au nanoparticles (NPs) is reported, using a pure enzyme for the reduction of AuCl4-, with the retention of enzymatic activity in the complex.
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Modulating enzymatic activity in the presence of gold nanoparticles
TL;DR: The presence of citrate-stabilized gold nanoparticles (cit-Au NPs) significantly enhanced the specific activity of α-amylase, which could also be modulated by varying the concentration of the enzyme, while keeping the NP concentration constant.
Sensitive Protein Assay with Distinction of Conformations Based on Visible Absorption Changes of Citrate-Stabilized Gold Nanoparticles
TL;DR: A new and potentially general method of assay of proteins in solution that could distinguish conformations of protein (native and denatured forms) and spectral changes in the presence of thiol-containing proteins were found.
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Surface passivation improves the synthesis of highly stable and specific DNA-functionalized gold nanoparticles with variable DNA density.
Jashmini Deka,Rostislav Měch,Luca Ianeselli,Heinz Amenitsch,Fernando Cacho-Nerin,Pietro Parisse,Loredana Casalis,Loredana Casalis +7 more
TL;DR: The method is highly flexible and shows an additional advantage of creating ssDNA-AuNP conjugates with a predefined number of ssDNA strands per particle, which makes it widely applicable to diverse biosensing applications involving ssDNA functionalized AuNPs.
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Probing Au nanoparticle uptake by enzyme following the digestion of a starch-Au-nanoparticle composite.
TL;DR: Investigations revealed that following the digestion of starch in the composite the NPs were released and subsequently attached to the enzyme only and not to the degraded products of starch, and a change in the surface plasmon resonance (SPR) of the N Ps was observed, demonstrating that the SPR could be used as a direct probe for monitoring the digestionof the composite by the enzyme.
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