INSPIRE Faculty fellow modifying tiny dots for fabricating optical materials useful for optical sensors, light-emitting purposes, energy conversion & composites

Artificial Intelligence (AI) has a beginning, but no end and would evolve with time: Secretary, DST, Prof Ashutosh Sharma

Dr. Satyapriya Bhandari, from the Department of Chemistry, University of North Bengal, West Bengal, is fascinated by tiny nanoscale crystals which, when hit by ultraviolet light, emits light of multiple colours.

This recipient of the INSPIRE Faculty fellowship instituted by the Department of Science & Technology, Govt. of India is using chemical reactions to modify the surface of these nanoscale crystals called quantum dots (QDs) for fabricating optical materials that can have sustainable applications in optical sensors, light-emitting usages, composites, and fluorescent biological labels.

Chemically modifying the surface of QDs can be an innovative pathway to alter their optical features and making newer optical materials, which are useful for fabricating white light-emitting (WLE) materials, ratiometric sensors for detecting disease responsive molecules or environmental pollutants, photocatalysts (for H2 production) and imaging of cancerous cells.

Dr. Bhandari’s chemically modified QDs could be used for ratiometric tracing of in vitro pH, detection of amino acid and vitamin B12, developing advanced WLE materials that can emit day-bright light, capability to image cancerous cells, and packaging of enzymes to enhance their activity.

The research was published in journals Chemical Communications, Advanced Optical Materials, Chemistry: An Asian Journal, and Nanoscale Advances. Dr. Bhandari has worked on the construction of advanced, sustainable, and environment-friendly optoelectronic materials and sensors, setting a new paradigm in the area.

In collaboration with IIT Guwahati, he established a dual emitting nanoprobe that can serve as a sensor for the detection of Hg2+ and Cu2+ ions. The work has been published in the journal ‘Journal of Material Chemistry C’ recently.

With the inspiring faculty fellowship, he is working on the fabrication of QD-based optical materials for advanced energy and sensing applications that can be used for household lighting, alternative fuel production, better human health monitoring, and a clean and sustainable environment.

Source: Press Release
Release ID: 1708890
PIB
Ministry of Science & Technology
Date: April 01, 2021

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