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Debjit Roy

Affiliations: 
2013-2019 Chemical Sciences IISER Kolkata 
 2019-2020 Biological Sciences NUS, Singapore, Singapore 
 2020- Biological Chemistry UCLA David Geffen School of Medicine 
Google:
"Debjit Roy"
Bio:

I am a research professional with 8+ years of experience working in the field of Chemical & Biological Science, with expertise in spectroscopy and microscopy techniques. I am currently pursuing postdoctoral research at the University of California Los Angeles on probing bioelectricity in bacterial biofilms.
I have completed doctoral research at the Indian Institute of Science Education and Research Kolkata (IISER Kolkata), investigating the optical properties of semiconductor quantum dots utilizing ensemble and single-particle levels. 
I have previously worked as a postdoctoral researcher at the National University of Singapore on studying membrane organization and dynamics in live human neuronal cells. 
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Parents

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Prasun K. Mandal grad student 2013-2018 IISER Kolkata
 (Understanding Optical Behaviour of CdSe based Core/Gradient-Alloy-Shell/Shell Quantum Dots through Ultrafast Dynamics and Single Particle Spectroscopy)
Shimon Weiss post-doc 2020- UCLA
Thorsten Wohland post-doc 2019-2020 National University of Singapore

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Publications

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Roy D, Michalet X, Miller EW, et al. (2025) Towards measurements of absolute membrane potential in Bacillus subtilis using fluorescence lifetime. Biophysical Reports. 100196
Roy D, Michalet X, Miller EW, et al. (2024) Towards optical measurements of membrane potential values in using fluorescence lifetime. Biorxiv : the Preprint Server For Biology
Roy D, De CK, Ghosh S, et al. (2022) Ultrafast dynamics and ultrasensitive single particle spectroscopy of optically robust core/alloy shell semiconductor quantum dots. Physical Chemistry Chemical Physics : Pccp
Roy D, Ghosh S, De CK, et al. (2022) Excitation-Energy-Dependent Photoluminescence Quantum Yield is Inherent to Optically Robust Core/Alloy-Shell Quantum Dots in a Vast Energy Landscape. The Journal of Physical Chemistry Letters. 13: 2404-2417
Roy D, Shapira Z, Weiss S. (2022) Membrane potential sensing: Material design and method development for single particle optical electrophysiology. The Journal of Chemical Physics. 156: 084201
Mandal S, Ghosh S, Mukherjee S, et al. (2021) Near-Ergodic CsPbBr Perovskite Nanocrystal with Minimal Statistical Aging. The Journal of Physical Chemistry Letters. 10169-10174
Mandal S, Ghosh S, Mukherjee S, et al. (2021) Unravelling halide-dependent charge carrier dynamics in CsPb(Br/Cl) perovskite nanocrystals. Nanoscale
Ghosh S, Mandal S, Mukherjee S, et al. (2021) Near-Unity Photoluminescence Quantum Yield and Highly Suppressed Blinking in a Toxic-Metal-Free Quantum Dot. The Journal of Physical Chemistry Letters. 1426-1431
Reddy CM, Bhattacharya B, Roy D, et al. (2020) Mechanical bending induced fluorescence enhancement in plastically flexible crystals of a GFP chromophore analogue. Angewandte Chemie (International Ed. in English)
Mandal S, Mukherjee S, De CK, et al. (2020) Extent of Shallow/Deep Trap States Beyond Conduction Band Minimum in Defect Tolerant CsPbBr3 Perovskite Quantum Dot: Control Over the Degree of Charge Carrier Recombination. The Journal of Physical Chemistry Letters
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