Invited Speakers

Dr. Ashis Bhattacharjee

Dr. Ashis Bhattacharjee

Professor & Head, Department of Physics, Visva-Bharati University Santiniketan-731235, India
Speech Title: Potentially Important Metal-Based Nanoparticles Through Green Technique

Abstract: Semiconducting metal-based nanoparticle (MBNP) research is an area of intense scientific activity due to variety of potential applications. The size, shape and crystallinity of these MBNPs strongly modulate their physical properties. Their outstanding properties led to the fabrication of various nanostructures by engaging a variety of synthesis methods of MBNPs which can alter the shape, size and crystallinity and hence, control their properties. However, these methods have some demerits, e.g., usually require longer time of reaction, involve expensive and eco-toxic chemicals. Therefore, the green synthesis technique has drawn much interest in the contemporary research and is becoming increasingly crucial. Extracts of certain plant-parts act as substrates for the green synthesis of nanomaterials. As plants possess a rich variety of phytochemicals, these phytochemicals present in the plant extract act as reducing agent to react with metal ions of the precursor compound to reduce their size into nano range, and also act as capping and stabilizing agents to determine the final shape and size of the MBNPs. Green synthesis is a simple, safe, eco-friendly, and cost-effective technique where the production of hazardous substances that harm the ecosystem is eliminated. In the age of environmentally friendly development, the green synthesis of MBNPs from plant extracts has become a focus of research attention. Herein, discussions will be made on the physical aspects of some green synthesized MBNPs and their application potentials.



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