Jackson State University is a historically black university in Jackson, Mississippi, United States. Founded in 1877 in Natchez, Mississippi as Natchez Seminary by the American Baptist Home Mission Society of New York, the Society moved the school to Jackson in 1882, renaming it Jackson College, and developed its present campus in 1902. It became a state-supported public institution in 1940, and it is a member of the Thurgood Marshall College Fund. Wikipedia.
Gu J.,CAS Shanghai Institute of Materia Medica |
Leszczynski J.,Jackson State University |
Schaefer III H.F.,University of Georgia
Chemical Reviews | Year: 2012
The broadest motivation for exploring electron attachment to biological molecules comes from their important role in radiation damage. An electron trapped by a neutral molecule results in the corresponding radical anion. The energy difference between the neutral molecule and the corresponding radical anion is referred to as the electron affinity (EA). The EA is an important physical measurable quantity often used in theoretical and experimental descriptions of electron attachment to a molecule. From a theoretical viewpoint, an electron residing in a molecule leads to changes in the nuclear configuration to form an equilibrium structure for the corresponding radical anion. The VAE is the energy released from the instantaneous one electron attachment to a neutral species. No geometry relaxation takes place during this process. Therefore, both neutral and anionic molecules reflect the optimized geometry of the neutral species. Source
Meghanathan N.,Jackson State University
Ad Hoc Networks | Year: 2011
This paper discusses a new location prediction based routing (LPBR) protocol for mobile ad hoc networks (MANETs) and its extensions for multicast and multi-path routing. The objective of the LPBR protocol is to simultaneously minimize the number of flooding-based route discoveries as well as the hop count of the paths for a source-destination (s-d) session. During a regular flooding-based route discovery, LPBR collects the location and mobility information of nodes in the network and stores the collected information at the destination node of the route search process. When the minimum-hop route discovered through flooding fails, the destination node locally predicts a global topology based on the location and mobility information collected during the latest flooding-based route discovery and runs a minimum-hop path algorithm. If the predicted minimum-hop route exists in reality, no expensive flooding-based route discovery is needed and the source continues to send data packets on the discovered route. Similarly, we propose multicast extensions of LPBR (referred to as NR-MLPBR and R-MLPBR) to simultaneously reduce the number of tree discoveries and the hop count per path from the source to each multicast group receiver. Nodes running NR-MLPBR are not aware of the receivers of the multicast group. R-MLPBR assumes that each receiver node also knows the identity of the other receiver nodes of the multicast group. Finally, we also propose a node-disjoint multi-path extension of LPBR (referred to as LPBR-M) to simultaneously minimize the number of multi-path route discoveries as well as the hop count of the paths. © 2011 Elsevier B.V. All rights reserved. Source
Ray P.C.,Jackson State University
Chemical Reviews | Year: 2010
A study that was conducted to examine size and shape dependent second order nonlinear optical properties of nanomaterials and their application in biological and chemical sensing is presented. Benzil was the first material that proved relatively easy to grow into large single crystals. Over the last two decades the study of nonlinear optical processes in organic and polymer systems has enjoyed rapid and sustained growth. Nonlinear optics deals with the interaction of applied electromagnetic fields in various materials, which generates new electromagnetic fields altered in frequency, phase, or other physical properties. A nanoparticle has a rather large number of atoms, but its size is comparable, with characteristic dimensions describing the behavior of electrons and holes, thus creating an intermediate regime between molecules and bulk crystals. Source
Shahbazyan T.V.,Jackson State University
Nano Letters | Year: 2013
Metal photoluminescence (MPL) originates from radiative recombination of photoexcited core holes and conduction band electrons. In metal nanostructures, MPL is enhanced due to the surface plasmon local field effect. We identify another essential process in plasmon-assisted MPL - excitation of Auger plasmons by core holes - that hinders MPL from small nanostructures. We develop a microscopic theory of plasmon-enhanced MPL that incorporates both plasmon-assisted enhancement and suppression mechanisms and derive the enhancement factor for MPL quantum efficiency. Our numerical calculations of MPL from Au nanoparticles are in excellent agreement with the experiment. © 2012 American Chemical Society. Source
Agency: NSF | Branch: Standard Grant | Program: | Phase: CENTERS FOR RSCH EXCELL IN S&T | Award Amount: 1000.00K | Year: 2016
The Historically Black Colleges and Universities Research Infrastructure for Science and Engineering (HBCU-RISE) activity within the Centers of Research Excellence in Science and Technology (CREST) program supports the development of research capability at HBCUs that offer doctoral degrees in science and engineering disciplines. HBCU-RISE projects have a direct connection to the long-term plans of the host department(s) and the institutional mission, and plans for expanding institutional research capacity as well as increasing the production of doctoral students in science and engineering. With support from the National Science Foundation, Jackson State University (JSU) aims to develop a research and educational program that will prepare chemistry undergraduate (RISE Scholars) and graduate students (RISE Fellows) to be globally competitive by: recruiting highly talented doctoral students with an interest in nanochemistry; providing faculty-led mentoring of interdisciplinary research activities for doctoral students; supporting leadership development activities for doctoral students; developing new courses toward a unique updated curriculum for the JSU chemistry doctoral program; upgrading the lab equipment to support the expansion of nanochemistry research; and generating collaborative-interdisciplinary research among faculty members and doctoral students who will give presentations and publish. The purposes of this proposal are to (a) improve and expand the institutions research and educational capability in order to prepare African Americans and women to become effective future generation of scientists for our nation and (b) to increase the number and quality of minority students through the effective preparation of the next generation of US scientists.
The JSU-RISE interdisciplinary faculty mentors will collaborate on a research project pertaining to the chemical design and development of novel multifunctional carbon quantum dots (CQDs) based fluorescence imaging materials and demonstrate their possible application for biological and chemical imaging. The goal is to establish synthetic procedures to develop different types CQDs as imaging materials for targeted sensing of several pathogenic bacteria and viruses simultaneously. The proposed research applies an integrated approach combining nanoscience, organic chemistry, and theory to construct interfaces that give quantitative information about chemical activities at the nano interface. The research activities will include: a) developing synthetic procedures for bright and photo stable CQDs such as graphene oxide quantum dots, carbon dots and metal doped graphene dots; b) measuring the two photon absorption cross section by measuring two-photon luminescence intensity; c) finding the photo-stability and biocompatibility of the developed CQDs; d) demonstrating CQDs based near IR imaging of bio-molecules for the selective and simultaneous sensing of several waterborne pathogens; and e) using quantum chemical calculations to understand the interaction between CQDs and biological molecules. The goals of this proposal are well-aligned with the ongoing developmental plan of JSU to become one of the regions foremost centers for nanotechnology with the aim of making devices that can be used for daily life applications.