• Bio-renewable & biodegradable polymer& composites
• Chemicals from natural resources
• Lignin& Coal chemistry
• Acid Mine Drainage
• Waste to wealth

• A process for the preparation of polyaniline: S. Palaniappan, Singh Ajit, Indian Patent 2102DEL2013

• Feasibility study on the inhibition of pyrite sulfur oxidation in coal and overburden materials for management of acid mine drainage, Ongoing: - (P.I.)
• Development of hybrid battery power module with indigenously developed super-capacitor and Li-ion cell, Ongoing: - (Member)
• Development of Graphene Super-Capacitors using Northeastern coal for power applications, Ongoing: -(Member)
• Approach towards tailoring the interfacial structure and property of lignin for flexible bio-polymer film application, Completed: - (P.I.)

• Epoxidation and grafting route to prepare thin and flexible polymer film with high lignin content;K. Dutta, A. Saikia, Ajit Singh*;Reactive and Functional Polymers, 2023 (https://doi.org/10.1016/j.reactfunctpolym.2023.105720 )
• Metal catalyst‑free selective acetosyringone synthesis from rice straw lignin;A. Saikia, K. Dutta, D. Bora, B. Saha, Ajit Singh*;Environmental Science and Pollution Research, 2023 (https://doi.org/10.1007/s11356-023-29349-0)
• Functionalization and thereafter grafting with lactic acid to synthesize lignin-polylactic acid copolymer for thin film preparation;K. Dutta, A. Saikia, B K Saikia, Ajit Singh*;Journal of Polymers and the Environment, 2023 (https://doi.org/10.1007/s10924-023-02825-x)
• Chemical modification of lignin and thereafter grafting with lactic acid for flexible polymer film preparation;K. Dutta, Ajit Singh*;Journal of Applied Polymer Science, 2022 (https://doi.org/10.1002/app.52320)
• Polyaniline binder for functionalized acetylene black: A hybrid material for supercapacitor;Ajit Singh, S. Palaniappan*S. Gopukumar;Advanced Materials Research1024, 327-330, 2014 (https://doi.org/10.4028/www.scientific.net/AMR.1024.327)
• Polyaniline binder for functionalized acetylene black: A hybrid material for supercapacitor;Ajit Singh, S. Palaniappan*, S. Gopukumar;Synthetic Metals, 2013 (https://doi.org/10.1016/j.synthmet.2013.07.022)
• One-potdirectsynthesis offluorescent polyaniline-porphyrinmacro-spheres from porphyrin;Ajit Singh, S. Palaniappan*, P. Udaykumar, P. Madhusudanachary;JournalofPolymerScience:APolymerChemistry,2012 (https://doi.org/10.1002/pola.25840)
• Preperation of processible polyaniline-formate salt via emulsifier free inverted emulsion polymerization and it’s antistatic application; S. Palaniappan*,Ajit Singh; Synthetic Metals, 2011(https://doi.org/10.1016/j.synthmet.2011.03.011)
• Didecylesterof4-sulfophthalicacidasplastdopantandemulsifierinthechemical polymerization of anilineto polyaniline salt; S. Palaniappan*,Ajit Singh;Journal of AppliedPolymerScience, 2010 (https://doi.org/10.1002/app.32636)

Book Chapters

• MridusmritaSarmah, B P Baruah, PrasenjitSaikia Industrial emissions from coal utilization and its effect on climate change. 2013, Climate Change & Himalayan Ecosystem-indicator, Bio & Water Resources, India, ISBN: 978-81-7233-847-3, Scientific Publishers, Jodhpur, India.
• R. Kataki and PrasenjitSaikia Greenhouse gas emission from solid fuels in the rural households of Assam: A case study of Sonitpur district. 2012, Renewable Energy & Sustainable Development, India, ISBN: 978-93-80261-78-2, EBH Publishers, India.
• R. Kataki and Prasenjitsaikia Bamboo and its potentiality as a Source of Bio-energy in North-east India. 2007, Renewable Energy and Energy Management, India, ISBN: 81-8189-194-5, International Book Distributing Co., India.

• National Renewable Energy Fellowship (as Senior Research Fellow) of Ministry of New and Renewable Energy, Govt. of India (2005 to 2009).
• National Renewable Energy Fellowship (as Post Doctoral Fellow) of Ministry of New and Renewable Energy, Govt. of India (2010-2011).
• Received best Interactive Poster Award in International conference on “Next Generation plant production and bioresources utilization Technologies” (NGPPBUT-2019) at IIT, Guwahati during 11th to 13th February, 2019.
• Received IIME Best Paper Award (Tamotia Award) under Environmental Topics related to Mineral Processing for the paper entitled “Ambient air quality and emission characteristics in and around a non-recovery type coke oven using high sulphur coal”, published in Science of the Total Environment, Vol. 530-531 (2015) pp.304-313.
• Paper published in Bioenergy Research entitled “ Production and characterization of oil from weed species Ipomoea Carnea received international attention as mentioned below:
  1. Biotechnology in Development Countries, CAS-TWAS Centre of Excellence for Biotechnology (CoEBio) highlighted the article in their TWAS-Regional Biotechnology News in January, 21st 2015.
  2. International Service for the Acquisition of Agri-biotech Application (ISAAA) an International organization highlighted this article as exceptional research findings in their Crop Biotech News Letter in January, 2015.
  3. The article also received special attentions by Renewable Energy Global Innovations {ISSN: 2291 – 2460} as a key scientific article contributing to the excellence in Energy Research.
• Nominated for Young Engineer’s Award-2011 given by Senior Engineer’s Forum, Greater Guwahati.

• Member of HEDON Household Energy Network, UK.
• Member of Partnership for Clean Indoor Air (PCIA), led by Environmental Protection Agency, USA.
• Member of NRE – Fellowship Alumni Association, Ministry of New and Renewable Energy, Govt. of India.
• Life membership of Assam Science Society (LM No. 236)
• Life membership of Indian Institute of Mineral Engineers (IIME ID: LM911)
• Life member, National Environmental Science Academy (L/M NO. 1821).
• Life member, Materials Research Society of India, (L/M NO. 2690).
• Joint Secretary, Materials Research Society of India, North East Chapter
• Executive member, Indian Institute of Mineral Engineers’ North East Chapter

Editorial Board Member of the International Journals

• Journal of Energy and Natural Resources (ISSN: 2330-7366 (Print), ISSN: 2330-7404 (Online))
• American Journal of Environmental Protection (ISSN: 2328-5680 (Print), ISSN: 2328-5699 (Online))
• International Journal of Environmental Monitoring and Analysis (ISSN: 2328-7659 (Print), ISSN: 2328-7667 (Online))

Reviewed more than 40 papers for the following journals.

• Bioresource Technology
• International Journal of Science and Qualitative Analysis
• Journal of Physical Science and Environmental Studies
• International Journal of Natural Resource Ecology and Management
• Journal of Medical and Biological Science Research
• African Journal of Biotechnology
• American Journal of Environmental Protection
• International Journal of Environmental Science & Technology
• Research Journal of Engineering and Technology
• American Journal of Renewable and Sustainable Energy
• African Journal of Biotechnology
• American Journal of Environmental Protection
• International Journal of Environmental Monitoring and Analysis
• International Research Journal of Public and Environmental Health
• International Journal of Agricultural and Food Sciences

Chairing Session in the International Conference/Seminar

• Chaired the First Technical Session of 4th International Conference on Natural Polymer (ICNP-15) held at Kottayam, Kerala, during 10th to 12th April, 2015.

• Biogas and its prospects in north-east India, Lecture delivered in the Regional Training cum Workshop on Integrated Rural Energy Planning, organized by Arunachal Pradesh Energy Development Agency (APEDA) in collaboration with Regional Institutes of IREPD, Itanagar, Arunachal Pradesh during 10th to 12th March, 2005.
• Energy and Environment, Lecture delivered in the Regional Training Programme on Renewable Energy Sources, organized by North Eastern Regional Institute of Water and Land Management (NERIWALM), Tezpur, Assam during 3rd to 5th August, 2006.
• Biomass Gasification and Its Potentiality, Lecture delivered in the Regional Training Programme on Renewable Energy Sources, organized by North Eastern Regional Institute of Water and Land Management (NERIWALM), Tezpur, Assam during 3rd to 5th August, 2006.
• Waste to Energy, Lecture delivered in the Training programme in connection with Rajiv Gandhi AkshayUrza Divas, organized by Science Centre, Assam Science Society, Tezpur, Assam on 17th August, 2006.
• Prospects of Renewable Sources, Lecture delivered in connection with Rajiv Gandhi AkshayUrza Divas, organized by Science Centre, Assam Science Society, BiswanathChariali, Assam on 20th August, 2006.
• Indoor Air Pollution, Lecture delivered in connection with Rajiv Gandhi AkshayUrza Divas, organized by District Administration, Golaghat and Career Guidance Cell, DKD College, Dergaon, Assam on 4th December, 2006.
• Indoor Air Pollution and Its Effect on Human Health, Lecture delivered in a Continuing Education Programme (CEP) on “Biodegradable waste Management and its application” organized at Defence Research Laboratory, Tezpur held from 3rd to 5th March, 2008.
• Energy Conservation and Renewable Energy Prospect in North East India. Key note speech delivered in “Oil and Gas Conservation Fortnight – 2012” organized by Oil India Ltd. Moran during 25th – 31st January, 2012.
• Invited as Resource Person in the face-to-face interaction with Children’s in connection with National Children’s Science Congress held in Dumduma Girl’s High School, Dumduma during September, 2012.
• Presented an Invited Talk on “Bio-oil: The next generation fuel and utilization of bio-weed for its production: A future prospect” in 4th International Conference on Natural Polymer (ICNP-15) to be held at Kottayam, Kerala, during 10th to 12th April, 2015.
• Presented a talk on “Coal utilization, mining and Storage: an insight of the human toxicity” 2018, National Conference on “Chemistry for Human Health and Environment” (CHHE 2018), organized by Delhi University and NESA, New Delhi.
• Presented an Invited Talk on “Can North east India be the Bio-energy hub of Indian economy?” 2019, National Conference on “Recent Advances in Science and Technology (NCRAST-2019)” held at NEDFi Convention Centre, Guwahati, organized by Assam Science and Technology University, Guwahati.