03-04-2023  Monday

09 January to 17 April, 2023

Assessment for Enhancing Science and Mathematics Learning

Every Monday (11:00-13:00)

Venue: Main Building Seminar Room - 217

Coordinator: Dean's Office

Elective Graduate Course

Instructors:

Dr. Narendra Deshmukh and Dr. Kalpana Kharade

09 January to 19 April, 2023

Advanced Topics in Cognition

Every Monday (15:00-17:00), Wednesday (10:00-12:00)

Venue: Main Building Seminar Room - 217

Coordinator: Dean's Office

Elective Graduate Course

Instructors:

Prof. Sanjay Chandrasekharan & Dr. Sweta Anantharaman

Teaching Assistants:

Ms. Pranshi Upadhyay and Mr. Joseph Salve

03Mon

Seminar by Dr. Tanuja Kistwal (HBCSE Post-doctoral visiting fellow candidate - Chemistry Education)

Date: 03 April, 2023
Time: 11:00 - 12:00

Venue: Online Meeting/Video Conferencing

Coordinator: Dean's Office

Zoom meeting Link:

https://hbcse-tifr-res-in.zoom.us/j/92860222274?pwd=UkNOSUkreEdIYytGYTZSK01MemRLQT09

Meeting ID:

928 6022 2274

Passcode:

361522

Name of the candidate:

Dr. Tanuja Kistwal

About the Speaker:

Dr. Tanuja Kistwal has obtained her doctoral degree in the field of Fluorescence dynamics and microscopy of protein-based biomaterials and nanomaterials using time resolved spectroscopy and microscopy from the Indian Institute of Technology (IIT), Bombay, India, under the supervision of Prof. Anindya Datta.

Title of the talk:

Fluorescence dynamics and microscopy of protein-based biomaterials and Nanomaterials

Abstract of the talk:

The Excited state dynamics of biological phenomena have been studied using time resolved fluorescence techniques, Time-Correlated Single-Photon count (TCSPC), and Femtosecond Optical Gating (FOG). These techniques are based upon the determination of fluorescence lifetime and are useful for the determination of rates of radiative and nonradiative excited state processes. Microscopic measurements including fluorescence lifetime imaging and microscopy (FLIM), and fluorescence correlation spectroscopy (FCS), provide insights into the dynamics of biological processes and phenomena in restricted compartments. Solvent-free liquid protein that shows slow solvation, associated classically with biological water, has been observed in these systems, even in the waterless condition. This apparently intriguing observation has been rationalized by the relaxation of segments of the protein and the PS in the microenvironment of the fluorescent probe slow down the hydration dynamics of a protein and such slow dynamics is attributed to the chain dynamics of the protein, aggregates surfactant-fluorogenic aggregates that are found to disrupt protein fibrils along with white light generation and protein corona on a water-soluble nanoparticle.