WELCOME TO THE LIGHT TRIGGERED CHEMISTRY RESEARCH LABORATORY: THE SUBHAJIT BANDYOPADHYAY GROUP, INDIAN INSTITUTE OF SCIENCE EDUCATION AND RESEARCH (IISER) KOLKATA.

ABOUT US

We work on the synthesis of molecules, study the kinetics, photochemical, and photophysical properties of the synthesized molecules to understand their behavior. Our molecules toggle between two structures using light and we utilize the structural changes to control several properties such as aggregation-disaggregation, supramolecular assembly - disassembly, differential binding properties, and so on.

1. Synthesis and Studies of Photochromic System

◘ Photonic Molecular logic gates.
◘ Formation and dissociation of supramolecular assemblies.
◘ Light activated organic molecular-magnets.
◘ Light activated metal/anion binding.

For representative examples, See Our Publications.

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2. Sensor

The government and various non-government organizations are vigilant about environment pollution by various chemical entities, both natural as well as man-made. Although there are many regulatory bodies to monitor the environmentally relevant chemical species, there is a need to develop fast, sensitive and selective methods to monitor them.

A small change for a sensor - a big leap for its selectivity.
Our featured work on sensors: See Our Publications.

Home-Sensor

3. Bio-Inspired Catalysis

We are also involved in designing of efficient organo-catalysts taking lessons from the Nature and study their activities and mechanisms.

Recent work from our group demonstrates the use of a photoswitchable dicarboxylic acid as a glycosidase mimic. The activity can be turned 'off' and 'on' using visible and UV light respectively. See Our Publications.

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4. Smartphone Chemistry

With a rise in the development of mobile learning environments, smartphone based apps have become an appealing method of teaching in the classroom and labs. Our goal is use the features of smartphones like camera to study enzyme kinetics and develop low-cost spectrophotometry undergrad experiments. We aim to turn the smartphone into a portable colorimeter and a spectrometer.


Titration ColorCam: The Sound and Feel of Titration Endpoints.

We have developed a smartphone aid for the colourblind and visually impaired students for performing titration experiments. Available freely on Google Play Store. View the application demonstration here

Smart

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DCS IISER Kolkata


Learning Beyond the Classroom