Former Member

LMU München
Fakultät für Physik


  Former Members


(c) 2002 BMO

Dr. Rupashree Balia Singh
Postdoctoral Fellow
 Research Interests:

  • Study of Excited State Intramolecular Proton Transfer (ESIPT) and Intramolecular Charge Transfer (ICT) reactions in different synthesized organic chromophores with introduction of functional groups at crucial positions in condensed media using steady state absorption and emission and time resolved emission spectroscopy in the picosecond range.
  • Use of Gaussian 03 and Gamess software for the theoretical estimation of ground and excited state optimized geometry, evaluation of potential energy surfaces, determination of barrier heights for the transformation processes investigated experimentally etc.
  • Observation of modification in the photophysics of molecular systems upon encapsulation in Confined Cavities of micelles, reverse micelles, cyclodextrins and proteins and their successful use as probes for studying the complicated process of protein unfolding and determination of micropolarity of proteinous and micellar environments etc. using simple fluorimetric approaches.
  • At BMO, I am involved in working with Noncollinearly Phase Matched Optical Parametric amplifiers (NOPAs) extending the concept of spatial confinement in studying bimolecular reactions (organic polar reactions) under spatial confinement in specially designed capped mesoporous systems using femtosecond pump probe experiments.

Funding agency
Alexander von Humboldt Foundation
Recent Publications: "Encapsulation of Diphenylmethyl Phosphonium Salts in Reverse Micelles: Enhanced Bimolecular Reaction of the Photofragments"
Christian F. Sailer, Rupashree Balia Singh, Johannes Ammer, Eberhard Riedle, and Igor Pugliesi
Chem. Phys. Lett. 512, 60-65 (2011)

"A DFT Based Theoretical Study of the Photophysics of 4-Hydroxyacridine: Single Water Mediated Excited State Proton Transfer"
Bijan Kumar Paul,Subrata Mahanta, Rupashree Balia Singh, and Nikhil Guchhait
J. Phys. Chem. A, 2010, 114 (7), pp 2618–2627
(no BMO publications)

"Inequivalence of Substitution Pairs in Hydroxynaphthaldehyde: A Theoretical Measurement by Intramolecular Hydrogen Bond Strength, Aromaticity and Excited-State Intramolecular Proton Transfer Reaction"
Subrata Mahanta, Bijan Kumar Paul, Rupashree Balia Singh, and Nikhil Guchhait
Journal of Computational Chemistry (Revision)
(no BMO publications)

"Study of protein-probe complexation equilibria and protein-surfactant interaction using charge transfer fluorescence probe Methyl ester of N,N-dimethylamino naphthyl acrylic acid"
Subrata Mahanta, Rupashree Balia Singh, Arnab Bagchi, Debnarayan Nath and Nikhil Guchhait
Journal of Luminescence, Volume 130, Issue 6, June 2010, Pages 917-926
(no BMO publications)

"Spectral modulation of charge transfer fluorescence probe encapsulated inside aqueous and non-aqueous β-cyclodextrin nanocavities"
Rupashree Balia Singh, Subrata Mahanta and Nikhil Guchhait
Journal of Molecular Structure,963, 92-97(2010).
(no BMO publications)

"Reply to comment on ‘Critical micellar concentration and protein–surfactant interaction(Comment to ‘Destructive and protective action of sodium dodecyl sulphate micelles on the native conformation of Bovine Serum Albumin: A study by extrinsic fluorescence probe 1-hydroxy-2-naphthaldehye’)’"
Rupashree Balia Singh, Subrata Mahanta and Nikhil Guchhait
Chemical Physics Letters, 483, 184-185 (2009)
(no BMO publications)

"Study of proteinous and micellar microenvironment using donor acceptor charge transfer fluorosensor N,N-dimethylaminonaphthyl-(acrylo)-nitrile"
Rupashree Balia Singh, Subrata Mahanta and Nikhil Guchhait
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 72, 1103-1111(2009)
(no BMO publications)

"Study of Protein–Probe Interaction and Protective Action of Surfactant Sodium Dodecyl Sulphate in Urea-Denatured HSA using Charge Transfer Fluorescence Probe Methyl Ester of N , N -Dimethylamino Naphthyl Acrylic Acid"
Subrata Mahanta, Rupashree Balia Singh, and Nikhil Guchhait
Journal of Fluorescence, 19,291-302(2009)
(no BMO publications)

"Interaction of human serum albumin with charge transfer probe ethyl ester of N,N-dimethylamino naphthyl acrylic acid: An extrinsic fluorescence probe for studying protein micro-environment"
Rupashree Balia Singh, Subrata Mahanta, Arnab Bagchi and Nikhil Guchhait
Photochem. Photobiol. Sci., 8, 101 - 110(2009)
(no BMO publications)

"Solvent dependent excited state spectral properties of 4-hydroxyacridine: Evidence for only water mediated excited state proton transfer process"
Rupashree Balia Singh, Subrata Mahanta and Nikhil Guchhait
Journal of Photochemistry and Photobiology A: Chemistry, 200, 325-333 (2008)
(no BMO publications)

alle 20 Publikationen