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Manipur Univ


Prof. Rajkumar Sunil Singh

Designation: Professor

Specialization: Organic Chemistry

Contact:

Email: rksunil3000 [AT] gmail.com; rksunilsingh [AT] manipuruniv.ac.in

  1. B. Sc.: Jadavpur University, Kolkata (1993–96; Chemistry (Honours))

  2. M. Sc.: Jadavpur University, Kolkata (1996–98; Organic Chemistry)

  3. Ph. D.: CSIR–Indian Institute of Chemical Technology, Hyderabad (1999–2004; Bio-organic Chemistry)

  4. Post-Doctoral: University of California, Los Angeles, USA (2004–08; Bio-organic Chemistry)


Faculty Details Faculty List

FACULTY PROFILE

 

  1. Name : Prof. Rajkumar Sunil Singh

  2. Designation : Professor

  3. Department : Chemistry

  4. Specialization : Organic Chemistry

  5. Email : rksunil3000[AT]gmail.com; rksunilsingh[AT]manipuruniv.ac.in

  6. Education :

  1. B. Sc.: Jadavpur University, Kolkata (1993–96; Chemistry (Honours))

  2. M. Sc.: Jadavpur University, Kolkata (1996–98; Organic Chemistry)

  3. Ph. D.: CSIR–Indian Institute of Chemical Technology, Hyderabad (1999–2004; Bio-organic Chemistry)

  4. Post-Doctoral: University of California, Los Angeles, USA (2004–08; Bio-organic Chemistry)

 

  1. Fellowship/Award: CSIR–JRF (1999–2001); CSIR-SRF (2001–2004)

 

  1. Work Experience:
     

  1. Professor: Manipur University, Imphal (Jan 2026–Present)

  2. Associate Professor: Manipur University, Imphal (Jan 2023–Jan 2026)

  3. Assistant Professor: North–Eastern Hill University, Shillong (July 2012–Jan 2023)

  4. Research Scientist: ClinInvent Research Pvt Ltd., New Delhi (2008–2012)


 

  1. Research Areas:

  1. Small-molecule gelators and their functional studies.  Molecular gels are an interesting class of soft materials with fibrous networked structures and a liquid component trapped within them. We are interested in the rational design and synthesis of small-molecule gelators and their applications. We are particularly interested in applying these gelators for the visual detection of various analytes.

  1. Non-traditional amphiphiles and their applications.  Another area of interest is in the design, synthesis, and self-assembly of amphiphiles with unconventional structures.


 

  1. Research Projects:

  1. Title: “Development of siRNA nano carriers using click chemistry and gene silencing studies of a cancer gene target” (DST; 2009-12; Rs 19.5 lakhs; Principal Investigator).

  1. Title: “Inhibiting the inhibitors of apoptosis using siRNAs: Developing apoptosis inducers as potential anticancer agents” (DBT; 2010-13; Rs. 32.95 lakhs; Principal Investigator).

 

  1. Ph.D Awarded:

 

  1. Mr. Wangkhem Paikhomba Singh

Thesis title: “Synthesis and Functional Properties of Novel Low Molecular Weight Gelating Molecules” (Awarded – December 2022)


 

  1. Research Publications:

  1. Leishangthem Roshnita Devi, Somas Singh Urikhinbam, Lenin S. Shagolsem*, Rajkumar Sunil Singh*. “Multicomponent gelation through cooperative acid-amine pairing: A combined experimental and computational materials design strategy with sensing applications”. Journal of Physical Chemistry B, 2026, 130, 4483–4496. https://doi.org/10.1021/acs.jpcb.6c00016

  2. Ayekpam Thoungamba Meitei, Miteshkumar Moirangthem, Ningombam Yaiphaba, Santosh Kumar Meena*, Rajkumar Sunil Singh*. “Supramolecular gels from sulfonic acid-containing two-component gelators: Molecular dynamics simulation, dye absorption and multianalyte sensing studies”. Langmuir, 2025, 41, 19965–19979. https://doi.org/10.1021/acs.langmuir.5c01976

  3. Henasurkishore Oinam, Watisenla Sangtam, Naorem Shanta Singh*, Rajkumar Sunil Singh, Ningombam Yaiphaba*. “Photoluminescence and energy transfer studies of Ce3+-sensitized BaF2:Tb3+: Latent fingerprinting detection and anti-counterfeit applications”. New Journal of Chemistry, 2025, 49, 18544–18557. https://doi.org/10.1039/d5nj02830b

  4. Thoudam Johnson Singh, Leishangthem Roshnita Devi, Ayekpam Thoungamba Meitei, Wangkhem Paikhomba Singh, Ningombam Yaiphaba, Rajkumar Sunil Singh*. “Supramolecular gels from phosphonic acid-containing two-component gelators: Efficient phase selective gelation of aromatic and aliphatic hydrocarbons”. Colloid Polymer Science, 2025, 303, 779–792. https://doi.org/10.1007/s00396-025-05381-z

  5. Dhanapriya Devi Yengkhom, Henasurkishore Oinam, Silvia Thongbram, Rajkumar Sunil Singh, Naorem Shanta Singh*, Ningombam Yaiphaba*. “Biocompatible luminescent Ce3+-sensitized SrF2:Tb3+ for anticounterfeiting and forensic fingerprint detection”. Sensors Diagnostics, 2025, 4, 63–74. https://doi.org/10.1039/d4sd00277f

  6. Rajkumar Sunil Singh*. “Supramolecular gels from bolaamphiphilic molecules”. Journal of Molecular Liquids, 2024, 394, 123772. https://doi.org/10.1016/j.molliq.2023.123772

  7. Wangkhem Paikhomba Singh, Laishram Robindro Singh, Rajkumar Sunil Singh*. “Gelation–based visual detection of fluoride ion: Strategic use of silyl protection–deprotection chemistry”. Journal of Molecular Liquids, 2022, 119536. https://doi.org/10.1016/j.molliq.2022.119536

  8. Rajkumar Sunil Singh*. “Langmuir and Langmuir–Blodgett films of aromatic amphiphiles”. Soft Materials, 2022, 20, 57–98. https://doi.org/10.1080/1539445X.2021.1922443

  9. Wangkhem Paikhomba Singh, Sanjeev Bhandari, Rajkumar Sunil Singh*. “Organogelators derived from the bisphenol A scaffold”. New Journal of Chemistry, 2021, 45, 15655–15666. https://doi.org/10.1039/d1nj02664j

  10. Wangkhem Paikhomba Singh, Rajkumar Sunil Singh*. “A new triphenylsilyl-containing gelator for visual sensing of fluoride ion”. Materials Chemistry and Physics, 2020, 241, 122351. https://doi.org/10.1016/j.matchemphys.2019.122351

  11. Wangkhem Paikhomba Singh, Utpal Koch, Rajkumar Sunil Singh*. “Gelation of ionic liquids by small-molecule gelators and their applications”. Soft Materials, 2020, 18, 386–410. https://doi.org/10.1080/1539445X.2019.1697706

  12. Wangkhem Paikhomba Singh, Rajkumar Sunil Singh*. “Gelation-based visual detection of analytes”. Soft Materials, 2019, 17, 93–118. https://doi.org/10.1080/1539445X.2018.1539402

  13. Wangkhem Paikhomba Singh, Rajkumar Sunil Singh*. “A new class of organogelators based on triphenylmethyl derivatives of primary alcohols: Hydrophobic interactions alone can mediate gelation”. Beilstein Journal of Organic Chemistry, 2017, 13, 138–149. https://doi.org/10.3762/bjoc.13.17

  14. Rajkumar Sunil Singh, Christine Goncalves, Pierre Sandrin, Chantal Pichon, Patrick Midoux*, Arabinda Chaudhuri*. “On the gene delivery efficacies of pH-sensitive cationic lipids via endosomal Protonation: A chemical biology investigation”. Chemistry & Biology, 2004, 11, 713–23. https://doi.org/10.1016/j.chembiol.2004.03.026

  15. Bharat Kumar Majeti#, Rajkumar Sunil Singh#, Sudheer Kumar Yadav, Surendar Reddy Bathula, Sistla Ramakrishna, Prakash Vamanrao Diwan, Surkara Sakunthala Madhavendra, Arabinda Chaudhuri*. “Enhanced intravenous transgene expression in mouse lung using cyclic-head cationic lipids”. Chemistry & Biology, 2004, 11, 427–37 (#equal contributing authors). https://doi.org/10.1016/j.chembiol.2004.03.015

  16. Rajkumar Sunil Singh, Arabinda Chaudhuri*. “Single additional methylene group in the head-group region imparts high gene transfer efficacy to a transfection-incompetent cationic lipid”. FEBS Letters, 2004, 556, 86–90. https://doi.org/10.1016/S0014-5793(03)01381-4

  17. Valluripalli Vinod Kumar, Rajkumar Sunil Singh, Arabinda Chaudhuri*. “Cationic transfection lipids in gene therapy: Successes, setbacks, challenges and promises”. Current Medicinal Chemistry, 2003, 10, 1297–1306. 10.2174/0929867033457458

  18. Rajkumar Sunil Singh, Koushik Mukherjee, Rajkumar Banerjee, Arabinda Chaudhuri*, Samik Kumar Hait, Satya Priya Moulik, Yerramsetti Ramadas, Amash Vijayalakshmi, Nalam Madhusudhana Rao*. “Anchor dependency for non-glycerol based cationic lipofectins: Mixed bag of regular and anomalous transfection profiles”. Chemistry – A European Journal, 2002, 8, 900–908. https://doi.org/10.1002/1521-3765(20020215)8:4<900::AID-CHEM900>3.0.CO;2-X

  19. Saumitra Sengupta*, Subir Kumar Sadhukhan, Rajkumar Sunil Singh, Nilashish Pal “Synthesis of dendritic stilbenoid compounds: Heck reaction for periphery and the core”. Tetrahedron Letters, 2002, 43, 1117–1121. https://doi.org/10.1016/S0040-4039(01)02339-5

  20. Saumitra Sengupta*, Subir Kumar Sadhukhan, Rajkumar Sunil Singh. “A palladium catalyzed synthesis of wheel and axle hydrocarbons: Strategic use of tetraphenylmethane stoppers”. Indian J Chem SecB, 2002, 41B, 642–644.

  21. Saumitra Sengupta*, Subir Kumar Sadhukhan, Rajkumar Sunil Singh. “Heck reactions of arenediazonium salts with phenyl vinyl sulfones: A new synthesis of styryl sulfones”. Indian J Chem SecB, 2001, 40B, 997–999.


 

  1. Book Chapter:

  1. “Building of 2D nanomaterial films using the Langmuir-Blodgett method”. Sanjeev Bhandari, Rajkumar Sunil Singh, Somobrata Acharya, Mrityunjoy Mahato. Langmuir-Blodgett Films: Fundamental to Applications; Page 71–98, 2025. Edited by Syed Arshad Hussain; Publisher: Elsevier.


 

  1. Invited Talks / Oral Presentations:
     

  1. “Visual detection of analytes using simple small-molecule gelators”. Symposium on the Frontiers in Functional Materials and Biomolecular Engineering (FFMBE 2026) March 9-10, 2026; jointly organized by the Department of Chemistry, Manipur University & Indian Institute of Science Education and Research, Pune (IISER Pune).

  2. “Gel-phase materials from small organic molecules and their applications”. Two-Day National Symposium on ‘Current Progress in Chemical Sciences (CPCS-2026)’, January 29-30, 2026, jointly organized by the Department of Chemistry, NIT Manipur & Chemical Research Society of India (CRSI).

  3. “Gel-phase materials for visual sensing of analytes”. The International Conference on Advanced Materials for Sustainability and Innovation: Energy, Environment and Health, November 12-14, 2025, Department of Physics, Manipur University.

  4. “Supramolecular gels and visual sensing of analytes”. The 10th Asian Conference on Colloid and Interface Science, August 19-22, 2025, Yonsei University, Seoul, Republic of Korea.

  5. “Supramolecular Gels”. 12-day Interdisciplinary Refresher Course on “Chemical Sciences”, October 29-November 11, 2025.

  6. “Click Chemistry and Biorthogonal Chemistry”. 12-day Interdisciplinary Refresher Course on “Chemical Sciences”, October 29-November 11, 2025.

  7. “Sensing of analytes using supramolecular gels”. 3rd National Conference on the Emerging Challenges in the Frontiers of Chemical Sciences, organized by the Department of Chemistry, Manipur University, Imphal, Manipur, March 27–28, 2025.

  8. “Supramolecular gelators from triphenylsilyl-containing molecules and fluoride detection”. 2nd International Conference on Emerging Areas of Chemistry, organized by the Department of Chemistry, Tripura University, Tripura, February 12–14, 2025.

  9. “Gelation-based fluoride detection using triphenylsilyl derivatives of simple alcohols”. National Conference on the Emerging Challenges in the Frontiers of Chemical Sciences, organized by the Department of Chemistry, Manipur University, Imphal, Manipur, March 29–30, 2023.

  10. “Molecular gels”. Refresher Course in Chemical Sciences, organized by UGC HRDC, Manipur University, Imphal, Manipur, November 17–30, 2022.

  11. “Triphenylmethyl and triphenylsilyl derivatives of simple primary alcohols: From molecular gels to visual fluoride sensor”. 19th NATCOSEB Conference, Amity University, Kolkata, October 18–20, 2019, organized by the Indian Society for Surface Science and Technology & Amity University, Kolkata.

  12. “Molecular gels from triphenylmethyl derivatives of simple primary alcohols”. National Conference on Recent Advances in Nanoscience and Nanotechnology, Sept 8-9, 2016, organized by the Department of Nanotechnology, North-Eastern Hill University, Shillong.

  13. “Is nuclear structure altered in breast cancer cells?” June 25–28, 2008. Era of Hope, Dept of Defense, Breast Cancer Research Program, Baltimore, MD, USA. 

  14. “Direct visualization of glucocorticoid receptor and RNA polymerase II supports formation of chromatin loops in the interphase nucleus of living mammalian cells.” 46th Annual Meeting of the American Society for Cell Biology held at San Diego, USA, December 9–13, 2006.

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