|Residence||Thiruvanathapuram, Kerala, India|
|Known for||Studies on supramolecular assemblies|
Ayyappanpillai Ajayagosh (born 1962) is an organic chemist, academic and the director of the National Institute for Interdisciplinary Science and Technology. He is known for his studies on supramolecular assemblies and light induced sensor systems and is an elected fellow of all the three major Indian science academies viz. the National Academy of Sciences, India, Indian National Science Academy and the Indian Academy of Sciences as well as The World Academy of Sciences. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Chemical Sciences in 2007. He received the TWAS Prize of The World Academy of Sciences in 2013.
A. Ajayaghosh, born on 30 July 1962 in Kollam in the south Indian state of Kerala, graduated in science from the University of Kerala and completed his master's degree from the same university in 1984. Subsequently, working under the guidance of V. N. Rajasekharan Pillai, he secured a PhD from University of Calicut in 1989; his thesis was based on Solid-phase Peptide Synthesis. His career started in 1988 at the National Institute for Interdisciplinary Science and Technology (NIIST), then known as Regional Research Laboratory, of the Council of Scientific and Industrial Research, as a Scientist (Grade-C) and held various grades before reaching the position of a Scientist Grade-H and the head of the Photosciences and Photonics Group of NIIST in 2010. He is the director of the Institute since 2015 and holds the additional responsibility as the Dean of Chemical Sciences, Academy of Scientific and Innovative Research (AcSIR) New Delhi. In between, he had a short stint abroad, as a Alexander von Humboldt Fellow at the Max Planck Institute for Strahlen Chemie, Germany during 1994–96. He also serves as an adjunct professor of Material Science Programme at the Indian Institute of Technology, Kanpur.
Ajayaghosh's researches have been principally in the fields of supramolecular chemistry, chemosensors, low band-gap polymers, fluorescent gels, organic nanostructures and photoresponsive systems and he is reported to have done extensive researches on supramolecular architecture and light-induced sensor systems. He is known to have pioneered the study of molecular self-assembly in India and is credited with the creation of a new category of self-assembled materials that are functionally soft. His work assisted in the design of larger molecular structures using self-assembling molecules and demonstrated ways to control their electricity conductivity through controlling external factors like temperature which have reported use in applications involving light harvesting, sensing, imaging and security. He was the first scientist to design functional Phenylenevinylene-based Organogels from designed building blocks, which has been detailed in his article, First Phenylenevinylene Based Organogels: Self-Assembled Nanostructures via Cooperative Hydrogen Bonding and π-Stacking, published in 2001. One of the commercial applications of his researches is secret writing, thermally writable, non-copyable, and erasable fluorescent images useful for secret documentation by using a fluorescent gelator entrapped in a polystyrene film and the process has been developed by his team. His studies have been documented in several peer-reviewed articles; ResearchGate and Google Scholar, online repositories of scientific articles, have listed 202 and 162 of them respectively. He also holds patents for a number of processes he has developed.
Ajayaghosh is associated with a number of science journals around the world. He is an associate editor of Physical Chemistry Chemical Physics (PCCP), published by the Royal Society of Chemistry and a senior editor of the Bulletin of the Chemical Society of Japan. He is a former member of the advisory board of RSC Advances and sits in the editorial board of Chemistry: An Asian Journal. He has also guided several master's and doctoral scholars in their studies and has been involved in programs for popularization of science and science awareness campaigns.
- Ayyappanpillai Ajayaghosh; Chakkooth Vijayakumar; Vakayil K. Praveen (10 September 2013). "White light emitting organogel and process thereof". Patent No. 8529790.
- Ayyappanpillai Ajayaghosh; Sivaramapanicker Sreejith (1 January 2013). "Pyrrole end-capped bipyridine assay powder for selective detection of zinc ions and a process for the preparation thereof". Patent No. 8344150.
- Ayyappanpillai Ajayaghosh; Sampath Srinivasan; Vakayil Praveen (4 December 2012). "Nanocomposite material useful for the preparation superhydrophobic coating and a process for the preparation thereof". Patent No. 8323732.
- Babu, Sukumaran S.; Praveen, Vakayil K.; Ajayaghosh, Ayyappanpillai (2008). "Noncovalent macromolecular architectures of oligo(p-phenylenevinylene)s (OPVs): role of end functional groups on the gelation of organic solvents". Macromolecular Symposia. 273 (1): 25–32. doi:10.1002/masy.200851304.
- Rajeev Kumar; Vattakattu R.; Sajini, Vadukumpulli; Sreeprasad, Theruvakkattil S.; Praveen, Vakayil K.; Ajayaghosh, Ayyappanpillai; Pradeep, Thalappil (2009). "Probing the initial stages of molecular organization of oligo(p-phenylenevinylene) assemblies with monolayer protected gold nanoparticles". Chemistry: An Asian Journal. 4 (6): 840–848. doi:10.1002/asia.200900010. PMID 19462383.
- Yagai, Shiki; Aonuma, Hiroaki; Kikkawa, Yoshihiro; Kubota, Shun; Karatsu, Takashi; Kitamura, Akihide; Mahesh, Sankarapillai; Ajayaghosh, Ayyappanpillai (2010). "Rational design of nanofibers and nanorings through complementary hydrogen-bonding interactions of functional π systems". Chemistry - A European Journal. 16 (29): 8652–8661. doi:10.1002/chem.201000839. PMID 20623563.
- Vijayakumar, Chakkooth; Praveen, Vakayil K.; Kartha, Kalathil K.; Ajayaghosh, Ayyappanpillai (2011). "Excitation energy migration in oligo(p-phenylenevinylene) based organogels: structure-property relationship and FRET efficiency". PCCP: Physical Chemistry Chemical Physics. 13 (11): 4942–4949. doi:10.1039/C0CP02110E. PMID 21321716.
- Kartha, Kalathil K.; Babu, Sukumaran S.; Srinivasan, Sampath; Ajayaghosh, Ayyappanpillai (2012). "Attogram sensing of trinitrotoluene with a self-assembled molecular gelator". Journal of the American Chemical Society. 134 (10): 4834–4841. doi:10.1021/ja210728c. PMID 22352376.
Ajayaghosh received the Young Scientist Award of the Indian Science Congress Association in 1988 and the Young Scientist Medal of the Indian National Science Academy in 1991. The Chemical Research Society of India awarded him the Bronze Medal in 2002 and he received the MRSI Medal of the Materials Research Society of India in 2007. The Council of Scientific and Industrial Research awarded him the Shanti Swarup Bhatnagar Prize, one of the highest Indian science awards the same year. Two years later, he received the Thomson Reuters Research Excellence Award (2009) and the Outstanding Researcher Award of the Department of Atomic Energy. He received the fourth Infosys Prize in the Physical Sciences in 2012 making him the first chemist to receive the honor; the citation mentioning his pioneering development of methods for the construction of functional nano materials. The Chemical Research Society of India honored him again with a Silver Medal in 2013 and the TWAS Prize reached him the same year.
Ajayaghosh received the Alexander von Humboldt Fellowship in 1994 and the Swarna Jayanthi Fellowship of the Department of Science and Technology in 2001. The Indian Academy of Sciences elected him as a fellow in 2007, the same year as he received the Ramanna Fellowship of the Department of Science and Technology. He became an elected fellow of the National Academy of Sciences, India in 2011 and the Indian National Science Academy followed suit in 2013. He received the J. C. Bose National Fellowship of Science and Engineering Research Board and the elected fellowship of The World Academy of Sciences in (2015. He is also a fellow of the Royal Society of Chemistry and an honorary fellow of the Kerala Academy of Sciences.
- "Director". National Institute for Interdisciplinary Science and Technology. 2016.
- "Brief Profile of the Awardee". Shanti Swarup Bhatnagar Prize. 2016. Retrieved 12 November 2016.
- "NASI profile". National Academy of Sciences, India. 2016. Archived from the original on 26 July 2013.
- "The Year Book 2016" (PDF). Indian National Science Academy. 2016.
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- "Faculty profile". CSIR – National Institute for Interdisciplinary Science and Technology. 2016.
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- "Head, Photosciences and Photonics Group". Thomson Reuters. 2016.
- "Awardee profile". Infosys Science Foundation. 2016.
- "New PCCP Associate Editor". Royal Society of Chemistry. 2016.
- A. Ajayaghosh, Subi J. George (2001). "First Phenylenevinylene Based Organogels: Self-Assembled Nanostructures via Cooperative Hydrogen Bonding and π-Stacking". J. Am. Chem. Soc. 123 (21): 5148–5149. doi:10.1021/ja005933+.
- "Secret letter writing gets material boost". Nature India. 4 January 2010. doi:10.1038/nindia.2009.361.
- "Browse by Fellow". Indian Academy of Sciences. 2016.
- "On ResearchGate". ResearchGate. 2016.
- "On Google Scholar". Google Scholar. 2016.
- "Patents by Inventor Ayyappanpillai Ajayaghosh". Justia Patents. 2016.
- "About BCSJ". CSJ JOurnlas. 2016.
- "Editorial Board CAAJ". Chemistry: An Asian Journal. 2016. doi:10.1002/(ISSN)1861-471X.
- "Prizes, honors and awards". National Institute for Interdisciplinary Science and Technology. 2016.
- "INSA Young Scientists Medal". Indian National Science Academy. 2016.
- "Bronze Medal". Chemical Research Society of India. 2016.
- "MRSI Medal". Materials Research Society of India. 2016.
- "Earth Sciences". Council of Scientific and Industrial Research. 2016. Archived from the original on 3 March 2016.
- "Infosys Prize". Infosys. 2016.
- "Subrahmanyam, Chaudhuri get Infosys Prize". The Hindu. 11 November 2012.
- "Silver Medal". Chemical Research Society of India. 2016.
- "Prizes and Awards". The World Academy of Sciences. 2016.
- "About Director". National Institute for Interdisciplinary Science and Technology. 2016.
- "Swarna Jayanthi Fellowship" (PDF). Department of Science and Technology. 2016.
- "Indian fellow". Indian National Science Academy. 2016.
- "Honorary fellow - KAS". Kerala Academy of Sciences. 2016.