CS
Dr. Debraj Gangopadhyay, PhD

Dr. Debraj Gangopadhyay, PhD

mail debraj.gangopadhyayinvalid-email-name@invalid-email-domainuochb.cas.cz
phone +420 775 383 959
phone +420 220 183 272
Postdoctoral fellow
Petr Bouř Group
Biomolecular Spectroscopy

Profile

RESEARCH EXPERIENCE
2019 - till date

Postdoctoral Fellow

Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences (IOCB-CAS), Prague, Czech Republic

2017 - 2019

National Postdoctoral Fellow (NPDF), DST-SERB

Department of Physics, University of Lucknow, India

2015 - 2017

Senior Research Fellow, CSIR

Department of Physics, Banaras Hindu University, Varanasi, India

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EDUCATION
2011 - 2016

PhD in Physics

Department of Physics, Banaras Hindu University, Varanasi, India

2008 - 2010

MSc in Physics

Department of Physics, Banaras Hindu University, Varanasi, India

2005 - 2008

BSc in Physics (honours)

Acharya B. N. Seal College, University of North Bengal, West Bengal, India

All publications

Selected papers

Aggregation-aided SERS: Selective detection of arsenic by surface-enhanced Raman spectroscopy facilitated by colloid cross-linking
Aggregation-aided SERS: Selective detection of arsenic by surface-enhanced Raman spectroscopy facilitated by colloid cross-linking
M. Das D. Gangopadhyay R. Pelc R. Hadravová J. Šebestík P. Bouř
Talanta 253: 123940 (2023)
Arsenic of natural or industrial origin often occurs in water and makes it impotable. Due to its high toxicity, very sensitive detection is required. In the present study an ultra-sensitive arsenite (As3+) sensing is reported, based on aggregation-aided surface-enhanced Raman scattering (AA-SERS) of modified silver colloids. SERS intensity of mercapto-compounds attached to the colloidal silver nanoparticles surface is greatly increased in the presence of arsenic. Colloid aggregation is facilitated by cross-linking; a meshwork consisting of arsenic atoms and glutathione bridges is formed, as indicated by UV–Vis absorption spectroscopy, TEM and Raman imaging. The best 2-mercaptopyridine reporter molecule makes it possible to directly detect As3+ at concentrations as low as 0.5 ppb, which is better than achieved by the SERS technique so far.
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Chirality Revealed by Raman Optical Activity: Principles, Applications, Recent Developments and Future Prospects
M. Das A. Kurochka P. Bouř D. Gangopadhyay
Raman Spectroscopy: Advances and Applications (D. K. Singh, A. K. Mishra, A. Materny, Eds.), Springer Series in Optical Sciences (SSOS, volume 248) , 145–166, Springer (2024)
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Chiral detection by induced surface-enhanced Raman optical activity
M. Das D. Gangopadhyay J. Šebestík L. Habartová P. Michal J. Kapitán P. Bouř
Chemical Communications 57 (52): 6388-6391 (2021)
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All publications

Latest publications

Bisignate Surface-Enhanced Raman Optical Activity with Analyte-Capped Colloids
M. Das D. Gangopadhyay V. Andrushchenko J. Kapitán P. Bouř
ACS Nano 19 (10): 10412–10420 (2025)
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Chirality Revealed by Raman Optical Activity: Principles, Applications, Recent Developments and Future Prospects
M. Das A. Kurochka P. Bouř D. Gangopadhyay
Raman Spectroscopy: Advances and Applications (D. K. Singh, A. K. Mishra, A. Materny, Eds.), Springer Series in Optical Sciences (SSOS, volume 248) , 145–166, Springer (2024)
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Monitoring Conformation and Protonation States of Glutathione by Raman Optical Activity and Molecular Dynamics
M. Das D. Gangopadhyay J. Hudecová J. Kessler J. Kapitán P. Bouř
ChemPlusChem 88 (11): e202300219 (2023)
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Studies of temperature dependent Raman spectroscopy of two nematic liquid crystalline compounds of homologous series
J. Basumatary D. Gangopadhyay A. Nath K. D. Thingujam
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 300: 122898 (2023)
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