:Prashant K. Jain

Jain completed his undergraduate education in chemical engineering in Mumbai and his PhD in physical chemistry working with M. A. El-Sayed at Georgia Institute of Technology. He was a Miller Fellow at the University of California at Berkeley, prior to starting his scientific career at the University of Illinois.

Jain is best known for discoveries and insights into plasmon resonances – collective electron oscillations in metal nanoparticles, induced by light excitation and the applications of plasmon resonances in biomedicine, optoelectronics, and chemical catalysis. In the 2010s, Jain and his coworkers at the University of Illinois and the University of California Berkeley discovered{{Cite news|url=http://newscenter.lbl.gov/2011/04/18/plasmonic-resonances-in-semiconductor-nanocrystals/|title=New Kid on the Plasmonic Block: Berkeley Lab Researchers Find Plasmonic Resonances in Semiconductor Nanocrystals {{!}} Berkeley Lab|date=April 18, 2011|work=News Center|access-date=June 25, 2018|language=en-US}} that plasmon resonances are not limited to metals, as was thought for decades, but can also be induced in semiconductor nanocrystals or quantum dots by the addition of dopants or defects. He was named a TR35 inventor in 2012 for this innovation.{{Cite web|url=http://www2.technologyreview.com/tr35/profile.aspx?TRID=1293|title=Innovator Under 35: Prashant Jain, 30|website=MIT Technology Review|language=en-us|access-date=June 25, 2018}} These findings have now been expanded to a large host of semiconductors, including silicon,{{Cite journal|last1=Rowe|first1=David J.|last2=Jeong|first2=Jong Seok|last3=Mkhoyan|first3=K. Andre|last4=Kortshagen|first4=Uwe R.|date=February 19, 2013|title=Phosphorus-Doped Silicon Nanocrystals Exhibiting Mid-Infrared Localized Surface Plasmon Resonance|journal=Nano Letters|language=EN|volume=13|issue=3|pages=1317–1322|doi=10.1021/nl4001184|pmid=23413833|bibcode=2013NanoL..13.1317R|issn=1530-6984|url=https://figshare.com/articles/journal_contribution/2435497}} greatly expanding the class of materials that exhibit plasmons and associated phenomena. Plasmons in semiconductor nanocrystals have potential utility for the development of optical computing.{{Citation|last=X, the moonshot factory|title=We Solve for X: Prashant Jain on optical computing|date=February 11, 2013|url=https://www.youtube.com/watch?v=eFhgb5CqAy8|access-date=June 25, 2018}}{{Cite news|url=https://www.extremetech.com/extreme/223671-heres-why-we-dont-have-light-based-computing-just-yet|title=Here's why we don't have light-based computing just yet – ExtremeTech|date=February 29, 2016|work=ExtremeTech|access-date=June 25, 2018|language=en-US}}

At the University of Illinois, Jain's laboratory discovered the emergence of new catalytic behavior of noble metal nanoparticles when they are excited by visible light. Under continuous light excitation, the nanoparticles become photocharged. Multiple electrons and holes can be extracted from this photocharged state. As a result, the photoexcited nanoparticle catalyzes unexpected chemical transformations that are not observed in the dark. The catalytic activity depends on the nature of the light. In some cases, thermodynamically uphill reactions, like those in natural photosynthesis, are driven, which suggests that free energy is harvested from photoexcitations.

Jain's other notable contributions include the scaling law of plasmonic interactions and physical principles{{Cite journal|title=Calculated Absorption and Scattering Properties of Gold Nanoparticles of Different Size, Shape, and Composition: Applications in Biological Imaging and Biomedicine|journal=The Journal of Physical Chemistry B|volume=110|issue=14|pages=7238–7248|doi=10.1021/jp057170o|pmid=16599493|year=2006|last1=Jain|first1=Prashant K|last2=Lee|first2=Kyeong Seok|last3=El-Sayed|first3=Ivan H|last4=El-Sayed|first4=Mostafa A|citeseerx=10.1.1.459.3928}} governing the plasmonic absorption and scattering properties of gold nanoparticles, which now form the basis of nanoparticle-based biomedical theragnostics and sensor technologies. The original paper describing these principles has been cited over 4000 times. An open-source simulation toolkit{{Citation|last=NanoBio Node|title=nanoDDSCAT+: Build your own plasmonics sensor, a hands-on session I (Jeremy Smith)|date=June 20, 2016|url=https://www.youtube.com/watch?v=EArRBMlRWmI|access-date=June 25, 2018}} for designing plasmonic nanostructures, based on this work, has been developed and released for free use by the University of Illinois with funding from the National Science Foundation.

Jain was awarded a Guggenheim Fellowship in April 2022.{{cite web |title=Meet Our 2022 Fellows |url=https://www.gf.org/announcements/ |website=John Simon Guggenheim Memorial Foundation |access-date=April 12, 2022}} He was named a Fellow of the American Physical Society in 2022 "for the development of plasmonic semiconductors and the use of plasmons to drive simultaneous multielectron reduction reactions with chemical specificity".{{cite web|url=https://www.aps.org/programs/honors/fellowships/archive-all.cfm?initial=&year=2022|title=Fellows nominated in 2022|work=APS Fellows archive|publisher=American Physical Society|access-date=October 19, 2022}}

• Mostafa El-Sayed
• G. N. Lewis
• Michael Kasha
• Paul Alivisatos
• Localized surface plasmon
• Colloidal gold
• Scale invariance

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• [https://www.acs.org/content/acs/en/meetings/national-meeting/about/meetings-archive/kavli-lecture-series/turning-photons-into-chemical-bonds.html Turning photons into chemical bonds] – 2017 Kavli Lecture, American Chemical Society

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Category:American physical chemists

Category:21st-century American chemists

Category:21st-century Indian chemists

Category:Indian physical chemists

Category:American people of Indian descent

Category:1981 births

Category:Living people

Category:Sloan Research Fellows

Category:University of Illinois Urbana-Champaign faculty

Category:Fellows of the American Physical Society

Category:Recipients of the Presidential Early Career Award for Scientists and Engineers