Tezpur University | Library | Photo Gallery | Webmail
For best view of the website, install Google Chrome


(+91) 03712 275056 / 5056

Email: nkarak@tezu.ernet.in


Google scholar


Advanced Polymer & Nanomaterial Laboratory

Department of Chemical Sciences

Tezpur University

Assam-784028, India


/// Faculty of School of Sciences
/// Professor

Academic Qualifications

Ph.D. in IIT Kharagpur.

M.Tech. in IIT Kharagpur.

M.Sc. in IIT Kharagpur.

Area of Specialization/Research

• Multifaceted polymeric nanocomposites

• Advanced hyperbranched polymers

• Biodegradable and sustainable materials

Research Publications

H. Chaudhuri and N. Karak. "Bio-derived water dispersible polyurethane/rGO@α-MnO 2 /rGO@δ-MnO 2 nanocomposite as a heterogeneous catalyst and anticorrosive material"; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 602, 125116, 2020.

A. Saikia, L. Debbarma and N. Karak. "Renewable resource based hyperbranched epoxy thermosetting nanocomposite with cellulose nanofiber as a sustainable material"; Cellulose, 26(8), 4743–4755, 2019.

T. Ghosh and N. Karak. "Bio-based multifunctional macroglycol containing smart thermoplastic hyperbranched polyurethane elastomer with intrinsic self-healing attribute"; ACS Sustainable Chem. Eng.  6, 4370–4381, 2018.

S. Gogoi and N. Karak. "Solar driven hydrogen peroxide production using polymer supported carbon dot as heterogeneous catalyst"; Nano-Micro Letters, 9, 40, 2017.

D. Hazarika and N. Karak. "Biodegradable tough waterborne hyperbranched polyester/ carbon dot nanocomposite: An approach towards eco-friendly material"; Green Chemistry, 18, 5200 – 5211, 2016.

Papers in Conference Proceedings

N. Karak. Bio-derived biodegradable hyperbranched polymeric nanocomposites with multidimensional applications, International Conference on Emerging Trends in Chemical Sciences (ETCS-2020) at Gauhati University, 13-15 February, 2020, India (Invited talk).

N. Karak. Renewable resource based hyperbranched polyurethane nanocomposites as smart materials for multifaceted applications, International conference on Advances In Polymer Science and Rubber Technology, September 24-27, 2019, IIT Kharagpur, India (Invited talk).

N. Karak. Sustainable thermoplastic and thermosetting polymeric nanocomposites, International Conference on Polymer Science and Technology (SPSI-MACRO 2018), IISER, Pune, 18-20th December 2018, (Invited talk).

Other Publications

N. Karak. “Biobased Smart Polyurethane Nanocomposites: From Synthesis to Applications”, The Royal Society of Chemistry, Cambridge, UK, ISBN: 978-1-78801-180-8, 2017.

N. Karak. “Experimental Methods on Polymers, Nanomaterials and Their Nanocomposites”, Nova Science Publishers, New York, USA, ISBN: 978-1-63484-358-4, 2016.

N. Karak. “Vegetable oil based polymers: Processing, Properties and Applications”, Woodhead Publishing House Limited, UK, ISBN 978-0-85709-710-1 (print), ISBN 978-0-85709-714-9, 2012 (online).

Research Projects

• Development of water-borne hyperbranched polyesters and polyurethanes from bio-based resources and their nanocomposites sponsored by CSIR; Total cost: 17.56 lakhs; Duration: 2017-2020.

• Investigation on structure-property relationship for self-healing smart hyperbranched polyurethane nanocomposite with antistatic and antimicrobial attributes sponsored by DST; Total cost: 29.93 lakhs; Duration: 2017-2020.

• Polymer supported green silver nano particles: using plants of northeast India; studies on toxicity and anti-cancer property (Collaborative work with Visa Bharati University, Santiniketan sponsored by DBT; Total: 58.81 lakh; Duration: 2014-2017.

Patents/Consultancy/Innovations, etc.

• N. Karak and B. Be. A tough synthetic low dielectric hyperbranched epoxy thermoset and a process for preparing thereof, Indian Patent, Patent No. 312661 on 13/05/2019 (application No. 786/KOL/2013 of 28.06.2013).

Awards/Honours, etc.

• The Fellow of Royal Society of Chemistry (by RSC, UK), 2018 (No. 652504).

• Regular member of American Chemical Society (Gifted by ACS, USA for 1 year), 2018 (No. 30764416).

• Visitor’s award in research category (among all the central Universities) by The President of India, 2017.

• Recognized as the most highly prolific author for ACS Sustainable Chemistry & Engineering (in Asian countries and 4thout of 5 in world), by ACS 2016.

• Chemical Research Society of India (CRSI) Bronze medal by CRSI 2016.

• 4th Dr. S. S. Deshpande National Award by Holkar Government (Model, autonomous) Science College-Indore, 2015.

• 9th Polymer Foundation Award by PSM Polymer Foundation, 2014.
Quick links
• TU Alumni Web Portal
• Helpdesk@Computer Center
• Emergency Medical Duty
• Internal Complaint Committee
• Scholarships
• Waste Disposal
Total Visitors
Follow us on
Tezpur University
Deparment of Chemical Sciences
Napaam, Sonitpur, Assam-784028

Updated on January 2022, Copyright © Department of Chemical Sciences, Tezpur University