Dr. Takhellambam Sanjoy Singh
Assistant Professor
Department of Chemistry
Email: takhelsingh@gmail.com
Phone: 8812933021
Personal Page
Education:
Ph.D. (Physical Chemistry), North-Eastern Hill University, Shillong, 2010
M. Sc. (Chemistry), North-Eastern Hill University, Shillong, 2004
B.Sc. St. Anthony’s College, Shillong, 2002
Teaching & Research Experience:
Assistant Professor:
1. Guest Faculty (Lecturer), Department of Chemistry, Nagaland University, Lumani, Campus, Nagaland, India.
2. Assistant Professor, Department of Chemistry, Assam University, Silchar-788 011, Assam, India (2011 till now).
Post-Doctoral Research:
1. Prof. G. Krishnamoorthy, Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai (2010-2011)
Awards & Distinctions:
1. Graduate Merit Scholarship (1999-2002)
2. Post Graduate Merit Scholarship (2002- 2004)
Administrative Experience:
- Members, DAC, DPC and BPGS, Department of Chemistry, Assam University, Silchar.
Conference/Seminar Organized:
- Co-Conveners, National Conference on Emerging Materials (NCEM-2018), Department of Chemistry, Assam University, Silchar during March 20-22, 2018.
- Treasurer, National Conference: Current Perspectives on Research on Chemical Sciences (CPRCS-2015), Department of Chemistry, Assam University, Silchar during March 25-26, 2015.
Research Interests:
- Time Resolved Fluorescence
- Fluorescence Probes and Chemosensory Materials
- Bio-molecular interactions
- 4. Surface Chemistry
Research Guidance:
PhD Students:
Awarded:
- Fluorescence modulation by selected transition metal ions in Schiff-based systems, Mr. Nayan Roy, (2013-2019).
Ongoing:
- Fluorescence modulation of some selected donor-acceptor systems in homogeneous and micro-heterogeneous environments, Surjatapa Nath (2015-till now).
M.Sc. Students:
Total: 31 students (from year 2010 to 2020)
Research Project:
Completed:
- Synthesis, Structural and Photophysical Properties of a Novel Class of Schiff Base: A New Fluorescent Chemosensory Material, UGC-BSR Project, Total Amount Sanctioned. Rs.6.00 Lakhs, Completed (2012-2014).
- Synthesis and Spectroscopic Characterization of a Novel Class of Schiff Base: A New Fluorescent Chemosensory Materials and Second Order Nonlinear Optical Properties, DST-SERB Project, Total Amount Sanctioned. Rs. 24.5 Lakhs, Completed (2014-2017).
Ongoing:
- Development of intracellular fluorescent chemosensor for various metal ions using experimental and computational methods, SERB Project, Total Amount Sanctioned. Rs.36.57 Lakhs, Ongoing (2019-2022).
List of Publications (last 5 years):
- A highly sensitive and selective fluorescent chemosensor for detection of Zn2+ based on a Schiff base. Nayan Roy, Harun A. R. Pramanik, Pradip C. Paul, T. Sanjoy Singh, Spectrochimica Acta A Molecular and Biomolecular Spectroscopy, 2015, 140, 150-155.
- Fluorescence properties of Schiff base – N, N/-bis(salicylidene) – 1, 2-phenylenediamine in presence of bile acid host. Nayan Roy, Pradip C. Paul, T. Sanjoy Singh, Spectrochimica Acta A Molecular and Biomolecular Spectroscopy, 2015, 142, 331-338.
- A new turn-on fluorescent chemosensor based on sensitive Schiff base for Mn2+ ion. Nayan Roy, Abhijit Dutta, Paritosh Mondal, Pradip C. Paul, T. Sanjoy Singh Journal of Luminescence, 2015, 165,167-173.
- Fluorescence characteristics of Schiff base-N,N/bis (salicylidene) trans 1,2 diaminocyclohexane in the presence of bile acid host. Nayan Roy, Pradip C. Paul, T. Sanjoy Singh. Journal of Molecular liquids, 2015, 211, 1052-1059.
- A new coumarin based dual functional chemosensor for colorimetric detection of Fe3+ and fluorescence turn-on response of Zn2+.Nayan Roy, Abhijit Dutta, Paritosh Mondal, Pradip C. Paul, T. Sanjoy Singh, Sensors and Actuators B: Chemical, 2016, 236, 719-731.
- A highly efficient and selective coumarin based fluorescent probe for colorimetric detection of Fe3+ and fluorescence dual sensing of Zn2+ and Cu2+. Nayan Roy, Surjatapa Nath, Abhijit Dutta, Paritosh Mondal, Pradip C. Paul, T. Sanjoy Singh. RSC Advances, 2016, 6, 63837-63847.
- Modulation of ESIPT fluorescence in o-hydroxy acetophenone derivatives: A comparative study in different bio-mimicking aqueous interfaces, P. M. Gashnga, T. Sanjoy Singh, S. Mitra, Journal of Molecular Liquids, 2016, 218, 549-557.
- Coumarin based fluorescent probe for colorimetric detection of Fe3+ and fluorescence turn on-off response of Zn2+ and Cu2+. Nayan Roy, Abhijit Dutta, Paritosh Mondal, Pradip C. Paul, T. Sanjoy Singh, Journal of Fluorescence, 2017, 27, 1307-1321.
- Fluorescence behavior of Schiff base – N, N′-bis(salicylidene) trans 1, 2-diaminocyclohexane in proteinous and micellar environments. Nayan Roy, Surjatapa Nath, Pradip C. Paul, T. Sanjoy Singh, Journal of Fluorescence, 2017, 27, 2295-2311.
- Photophysics of a coumarin based Schiff base in solvents of varying polarities. Saptarshi Ghosh, Nayan Roy, T. Sanjoy Singh, Nitin Chattopadhyay, Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2018, 188, 252-257.
- Cavity size dependent stoichiometry of probe-cyclodextrin complexation: Experimental and molecular docking demonstration, Sinjan Das, Surjatapa Nath, T. Sanjoy Singh, Nitin Chattopadhyay, Journal of Photochemistry & Photobiology A: Chemistry, 2020, 388, 112158-112166.
Books/ book chapters:
- Intramolecular Charge Transfer in Cinnamic Acid Derivatives. S. Mitra, T. Sanjoy Singh, Lap Lambert Academic Publishing, Germany (ISBN: 978-3-659-53468-3) 2014, Pages: 1-165.