Pradipta Purkayastha

Dept: Chemical Sciences (DCS)
E-mail: ppurkayastha [at]
Personal homepage: Click Here

Research Interest:

•Photophysical characterization of organic molecules using excited state proton transfer and charge transfer including twisted intramolecular charge transfer (TICT).•Photophysical and photochemical modulation of essential peptides in constrained biological environments using steady state and time-resolved fluorescence spectroscopy.•Application of metal nanoparticles and nanoclusters in drug delivery.•Single molecule spectroscopic study of protein polymerization using fluorescence correlation spectroscopy (FCS).

Academic Background:

  1. PhD (Photophysics and Photochemistry), Jadavpur University, 2002


  1. Professor, IISER Kolkata ( - )
  2. Associate Professor, IISER Kolkata (2013 - 2018)
  3. Assistant Professor, IISER Kolkata (2009 - 2013)
  4. Assistant Professor, BITS, Pilani (2007 - 2009)
  5. Lecturer, BITS, Pilani (2004 - 2007)
  6. Postdoctoral Research Fellow, University of Pennsylvania (2002 - 2004)

Awards and Honors:

  1. Outstanding Faculty in Chemistry from Venus International Foundation (2018)

Selected Publications:

  1. Ghosh, Ashutosh; Seth, Sourav Kanti and Purkayastha, Pradipta. 2018."Surfactant and Cyclodextrin Induced Vesicle to Micelle to Vesicle Transformation in Aqueous Medium." Langmuir, 34, 11503
  2. Banerjee, Rajashree and Purkayastha, Pradipta. 2018."Interaction of coumarin 6 with carbon nanotubes: Disintegration of the microcrystalline state by surfactant aggregation on the nanotube surface." J. Mol. Liq., 271, 397-402
  3. Bhunia, Soumyadip; Kumar, Sumit and Purkayastha, Pradipta. 2018."Gold Nanocluster-Grafted Cyclodextrin Suprastructures: Formation of Nanospheres to Nanocubes with Intriguing Photophysics." ACS Omega, 3, 1492-1497
  4. Banerjee, Rajashree and Purkayastha, Pradipta. 2017."Piecemeal Rekindling of Coumarin 6 Fluorescence on Stepwise Unfolding of Protein by Surfactant." J. Phys. Chem. B, 121, 11449
  5. Banerjee, Rajashree and Purkayastha, Pradipta. 2017."Revival of nearly extinct fluorescence of coumarin 6 in water and complete transfer of energy to rhodamine 123." Soft Matter, 13, 5506-5508

All Publications: Click Here