Prashant V. Kamat

Bio: Prashant V. Kamat is an academic researcher from University of Notre Dame. The author has contributed to research in topics: Racism & Excited state. The author has an hindex of 140, co-authored 725 publications receiving 79259 citations. Previous affiliations of Prashant V. Kamat include Indian Institute of Technology Kanpur & Council of Scientific and Industrial Research.

Photoinduced Electron‐Transfer Processes in Fullerene‐Based Donor—Acceptor Systems

Abstract: Photoinduced electron-transfer processes in fullerene-based donor–acceptor dyads (DBA) in homogeneous and cluster systems are summarized. Stabilization of charge has been achieved through the use of fullerene substituted-aniline/heteroaromatic dyads with tunable ionization potentials and also by using fullerene clusters. The rate constants for charge separation (kCS) and charge recombination (kCR) in fullerene substituted-aniline/heteroaromatic dyads show that forward electron transfer falls in the normal region of the Marcus curve and the back electron transfer in the inverted region of the Marcus parabola. Clustering of fullerene-based dyads assists in effective delocalization of the separated charge and thereby slows down the back electron transfer in these cases.

jz-2022-01778u.R1 Name: Peer Review Information for "Base-Stacking Heterogeneity in RNA Resolved by Fluorescence- Detected Circular Dichroism Spectroscopy" First Round of Reviewer Comments Reviewer: 1 Comments to the Author In the letter “Base-Stacking Heterogeneity in RNA Resolved by Fluorescence-D

Abstract: In the letter “Base-Stacking Heterogeneity in RNA Resolved by Fluorescence-Detected Circular Dichroism Spectroscopy” Widom & Hoeher describes the RNA structure-related fluorescence properties of common nucleobase analog 2-aminopurine (2PA). The Authors use fluorescence detected circular dichroism to resolve the fluorescence properties of 2PA in stacked and unstacked positions in RNA sequence oligonucleotide.

Confronting Racism in Chemistry Journals.

Abstract: The following joint Editorial was originally published in ACS Applied Materials & Interfaces (DOI: 10.1021/acsami.0c10979). We confront the terrible reality that systemic racism and discrimination impacts the daily personal and professional lives of many members of the scientific community and broader society. In the U.S., the brutal killing of George Floyd while in police custody is one of the most recent examples of the centuries of systemic violence suffered by Black Americans. This moment and its aftermath lay bare the legacies of racism and its exclusionary practices. Let us be clear: we, the Editors, Staff, and Governance Members of ACS Publications condemn the tragic deaths of Black people and stand in solidarity with Black members of the science and engineering community. Moreover, ACS condemns racism, discrimination, and harassment in all forms. We will not tolerate practices and viewpoints that exclude or demean any member of our community. Despite these good intentions, we recognize that our community has not done enough to provide an environment for Black chemists to thrive. Rep. Eddie Bernice Johnson, Chairwoman of the U.S. House Committee on Science, Space, and Technology said, “So far, we have gotten by with a STEM workforce that does not come close to representing the diversity of our nation. However, if we continue to leave behind so much of our nation’s brainpower, we cannot succeed.”(1) Indeed, the U.S. National Science Foundation notes that Blacks and other under-represented minority groups continue to be under-represented in science and engineering education and employment.(2) What is abundantly clear in this moment is that this lack of representation is a symptom of systemic racism across all levels of education and professional life. We know that supportive words are not enough. We must develop and implement a concrete plan for changing our trajectory. Publications and citations are academic currency, and while we like to think publishing a manuscript is “just about the science”, we know that is not true for everyone. We have seen the biases (largely through the lens of gender and in Western countries because of the limitations in bibliometric analyses) and applaud our colleagues at the RSC for their massive study that explored these gender barriers in the publishing pipeline(3) and their recent Inclusion and Diversity Framework.(4) At the present time, unfortunately, less is known about the effects of race and ethnicity on publishing success. A study published in PeerJ, however, found that unprofessional reviewer comments had a disproportionate effect on authors from under-represented groups.(5) As the world’s leading society publisher, we have a responsibility to aggressively combat bias in all aspects of the publishing process, including systemic under-representation of Blacks in this endeavor (no ACS journal is currently led by a Black Editor-in-Chief). Within ACS Publications, we actively track gender and geographic diversity of editors, advisors, authors, and reviewers, and we anecdotally report on race of editors. Diversity encompasses many more dimensions than these, and we acknowledge that we can do much more than we have. We affirm that diversity and inclusion strengthen the research community and its impact, and we are committed to developing, implementing, tracking, and reporting on our progress to ensure that our editors, advisors, reviewers, and authors are more diverse and that all authors receive the same fair treatment and opportunity to publish in our journals. We acknowledge that we do not have all the answers now, but we seek to hear from and listen to our community on how we can improve our journals to be more diverse and inclusive. As first steps, we commit to the taking the following actions: Gathering and making public our baseline statistics on diversity within our journals, encompassing our editors, advisors, reviewers, and authors; annually reporting on progress Training new and existing editors to recognize and interrupt bias in peer review Including diversity of journal contributors as an explicit measurement of Editor-in-Chief performance Appointing an ombudsperson to serve as a liaison between Editors and our Community Developing an actionable diversity plan for each ACS journal These are only initial plans and the start of a conversation: other ideas are beginning to germinate, and we commit to sharing them with you regularly. We invite you contribute your ideas on how we can do better via our Axial website. We are listening carefully. We encourage you to take immediate action in your own circles. In a recent editorial, JACS Associate Editor Melanie Sanford(6) offered practical steps to take now. Take a moment to find out more about these actions and how to bring them into your work and your life. We all have a responsibility to eradicate racism and discrimination in the science and engineering community; indeed, to make a real difference, we need to be antiracist. The tragic events we have seen in the Black community provide great urgency to this goal. The work will be difficult and will force us to confront hard realities about our beliefs and actions. We fully expect that you, and everyone in the community, will hold us accountable.

Confronting Racism in Chemistry Journals.

Abstract: The following joint Editorial was originally published in ACS Applied Materials & Interfaces (DOI: 101021/acsami0c10979) We confront the terrible reality that systemic racism and discrimination impacts the daily personal and professional lives of many members of the scientific community and broader society In the US, the brutal killing of George Floyd while in police custody is one of the most recent examples of the centuries of systemic violence suffered by Black Americans This moment and its aftermath lay bare the legacies of racism and its exclusionary practices Let us be clear: we, the Editors, Staff, and Governance Members of ACS Publications condemn the tragic deaths of Black people and stand in solidarity with Black members of the science and engineering community Moreover, ACS condemns racism, discrimination, and harassment in all forms We will not tolerate practices and viewpoints that exclude or demean any member of our community Despite these good intentions, we recognize that our community has not done enough to provide an environment for Black chemists to thrive Rep Eddie Bernice Johnson, Chairwoman of the US House Committee on Science, Space, and Technology said, “So far, we have gotten by with a STEM workforce that does not come close to representing the diversity of our nation However, if we continue to leave behind so much of our nation’s brainpower, we cannot succeed”(1) Indeed, the US National Science Foundation notes that Blacks and other under-represented minority groups continue to be under-represented in science and engineering education and employment(2) What is abundantly clear in this moment is that this lack of representation is a symptom of systemic racism across all levels of education and professional life We know that supportive words are not enough We must develop and implement a concrete plan for changing our trajectory Publications and citations are academic currency, and while we like to think publishing a manuscript is “just about the science”, we know that is not true for everyone We have seen the biases (largely through the lens of gender and in Western countries because of the limitations in bibliometric analyses) and applaud our colleagues at the RSC for their massive study that explored these gender barriers in the publishing pipeline(3) and their recent Inclusion and Diversity Framework(4) At the present time, unfortunately, less is known about the effects of race and ethnicity on publishing success A study published in PeerJ, however, found that unprofessional reviewer comments had a disproportionate effect on authors from under-represented groups(5) As the world’s leading society publisher, we have a responsibility to aggressively combat bias in all aspects of the publishing process, including systemic under-representation of Blacks in this endeavor (no ACS journal is currently led by a Black Editor-in-Chief) Within ACS Publications, we actively track gender and geographic diversity of editors, advisors, authors, and reviewers, and we anecdotally report on race of editors Diversity encompasses many more dimensions than these, and we acknowledge that we can do much more than we have We affirm that diversity and inclusion strengthen the research community and its impact, and we are committed to developing, implementing, tracking, and reporting on our progress to ensure that our editors, advisors, reviewers, and authors are more diverse and that all authors receive the same fair treatment and opportunity to publish in our journals We acknowledge that we do not have all the answers now, but we seek to hear from and listen to our community on how we can improve our journals to be more diverse and inclusive As first steps, we commit to the taking the following actions: Gathering and making public our baseline statistics on diversity within our journals, encompassing our editors, advisors, reviewers, and authors; annually reporting on progress Training new and existing editors to recognize and interrupt bias in peer review Including diversity of journal contributors as an explicit measurement of Editor-in-Chief performance Appointing an ombudsperson to serve as a liaison between Editors and our Community Developing an actionable diversity plan for each ACS journal These are only initial plans and the start of a conversation: other ideas are beginning to germinate, and we commit to sharing them with you regularly We invite you contribute your ideas on how we can do better via our Axial website We are listening carefully We encourage you to take immediate action in your own circles In a recent editorial, JACS Associate Editor Melanie Sanford(6) offered practical steps to take now Take a moment to find out more about these actions and how to bring them into your work and your life We all have a responsibility to eradicate racism and discrimination in the science and engineering community; indeed, to make a real difference, we need to be antiracist The tragic events we have seen in the Black community provide great urgency to this goal The work will be difficult and will force us to confront hard realities about our beliefs and actions We fully expect that you, and everyone in the community, will hold us accountable

I and i

Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality. Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells

Abstract: Two organolead halide perovskite nanocrystals, CH3NH3PbBr3 and CH3NH3PbI3, were found to efficiently sensitize TiO2 for visible-light conversion in photoelectrochemical cells. When self-assembled on mesoporous TiO2 films, the nanocrystalline perovskites exhibit strong band-gap absorptions as semiconductors. The CH3NH3PbI3-based photocell with spectral sensitivity of up to 800 nm yielded a solar energy conversion efficiency of 3.8%. The CH3NH3PbBr3-based cell showed a high photovoltage of 0.96 V with an external quantum conversion efficiency of 65%.

Electronics and optoelectronics of two-dimensional transition metal dichalcogenides.

Abstract: Single-layer metal dichalcogenides are two-dimensional semiconductors that present strong potential for electronic and sensing applications complementary to that of graphene.

Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology.

Abstract: Although gold is the subject of one of the most ancient themes of investigation in science, its renaissance now leads to an exponentially increasing number of publications, especially in the context of emerging nanoscience and nanotechnology with nanoparticles and self-assembled monolayers (SAMs). We will limit the present review to gold nanoparticles (AuNPs), also called gold colloids. AuNPs are the most stable metal nanoparticles, and they present fascinating aspects such as their assembly of multiple types involving materials science, the behavior of the individual particles, size-related electronic, magnetic and optical properties (quantum size effect), and their applications to catalysis and biology. Their promises are in these fields as well as in the bottom-up approach of nanotechnology, and they will be key materials and building block in the 21st century. Whereas the extraction of gold started in the 5th millennium B.C. near Varna (Bulgaria) and reached 10 tons per year in Egypt around 1200-1300 B.C. when the marvelous statue of Touthankamon was constructed, it is probable that “soluble” gold appeared around the 5th or 4th century B.C. in Egypt and China. In antiquity, materials were used in an ecological sense for both aesthetic and curative purposes. Colloidal gold was used to make ruby glass 293 Chem. Rev. 2004, 104, 293−346

Visible-Light Photocatalysis in Nitrogen-Doped Titanium Oxides

Abstract: To use solar irradiation or interior lighting efficiently, we sought a photocatalyst with high reactivity under visible light. Films and powders of TiO 2- x N x have revealed an improvement over titanium dioxide (TiO 2 ) under visible light (wavelength 2 has proven to be indispensable for band-gap narrowing and photocatalytic activity, as assessed by first-principles calculations and x-ray photoemission spectroscopy.