20 results match your criteria: "Center for Interdisciplinary Research and Education[Affiliation]"
Mater Horiz
December 2024
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Glass fiber reinforced polymer (GFRP) composites are valued for their strength and cost-effectiveness. However, traditional GFRPs often face challenges for end-of-life recycling due to their non-depolymerizable thermoset matrices, and long-term performance due to inadequate interfacial adhesion, which can lead to fiber-matrix delamination. Here, we have designed dynamic fiber-matrix interfaces to allow tough and closed-loop recyclable GFRPs by utilizing a vitrimer, derived from upcycled polystyrene--poly(ethylene--butylene)--polystyrene (SEBS) with boronic ester (S-Bpin) and amine-based diol crosslinker.
View Article and Find Full Text PDFChem Rec
January 2024
Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia.
In the recent times research towards solid state supercapacitors (SSS) have increased drastically due to the promising performance in futuristic technologies particularly in portable and flexible electronics like smart watches, smart fabrics, foldable smartphones and tablets. Also, when compared to supercapacitors using liquid electrolyte, solid electrolyte has several advantages like high energy density, safety, high cycle life, flexible form factor, and less environmental impact. The crucial factor determining the sustainability of a technology is the eco-friendliness since the natural resources are being exploited in a wide scale.
View Article and Find Full Text PDFACS Appl Mater Interfaces
August 2023
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States.
Cobalt-free cation-disordered rocksalt (DRX) cathodes are a promising class of materials for next-generation Li-ion batteries. Although they have high theoretical specific capacities (>300 mA h/g) and moderate operating voltages (∼3.5 V vs Li/Li), DRX cathodes typically require a high carbon content (up to 30 wt %) to fully utilize the active material which has a detrimental impact on cell-level energy density.
View Article and Find Full Text PDFACS Appl Mater Interfaces
July 2023
Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States.
Mn-based cation-disordered rocksalt oxides (Mn-DRX) are emerging as promising cathode materials for next-generation Li-ion batteries due to their high specific capacities and cobalt- and nickel-free characteristic. However, to reach the usable capacity, solid-state synthesized Mn-DRX materials require activation via postsynthetic ball milling, typically incorporating more than 20 wt % conductive carbon that adversely reduces the electrode-level gravimetric capacity. To address this issue, we first deposit amorphous carbon on the surface of the LiMnTiO (LMTO) particles to increase the electrical conductivity by 5 orders of magnitude.
View Article and Find Full Text PDFMater Horiz
May 2023
Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Comb Chem High Throughput Screen
January 2022
Center for Interdisciplinary Research and Education, Kolkata,India.
Background: Coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 infection has become a worldwide pandemic and created an utmost crisis across the globe. To mitigate the crisis, the design of vaccine is the crucial solution. The frequent mutation of the virus demands generalized vaccine candidates, which would be effective for all mutated strains at present and for the strains that would evolve due to further new mutations in the virus.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
July 2021
Department of Chemistry, Amity Institute of Applied Sciences, Amity University Kolkata, Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown, West Bengal, 700135, India. Electronic address:
Biofilm formation on medical implants and devices has been a severe concern that results in their impaired performance and life-threatening complications. Thus, development of novel functional coatings for infection prone surfaces with biofilm inhibiting characteristics is of prime significance considering the rapid emergence of multidrug resistant bacteria. Herein we present a novel nanocomposite derived from Graphene Oxide (GO) and a newly developed functional Ionic liquid (IL) obtained through a metathesis reaction between a triarylmethane dye hexamethyl pararosaniline chloride or crystal violet (CV) and sodium dodeceyl sulfate (SDS) to yield [CV][DS] (hexamethyl pararosaniline dodecyl sulfate).
View Article and Find Full Text PDFBiotechnol Biofuels
October 2020
Bredesen Center for Interdisciplinary Research and Education, The University of Tennessee, Knoxville, USA.
Background: Microbial electrolysis is a promising technology for converting aqueous wastes into hydrogen. However, substrate adaptability is an important feature, seldom documented in microbial electrolysis cells (MECs). In addition, the correlation between substrate composition and community structure has not been well established.
View Article and Find Full Text PDFRSC Adv
October 2019
Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee at Knoxville Knoxville TN 37996 USA
Photosystem I (PSI) from the thermophilic cyanobacterium (Te) is the largest membrane protein complex to have had its structure solved by X-ray diffraction. This trimeric complex has 36 protein subunits, over 380 non-covalently bound cofactors and a molecular weight of ∼1.2 MDa.
View Article and Find Full Text PDFBioresour Technol
February 2019
Bredesen Center for Interdisciplinary Research and Education, The University of Tennessee, Knoxville 37996, United States; Chemical and Biomolecular Engineering, The University of Tennessee, Knoxville, United States. Electronic address:
This study investigated microbial electrolysis of two aqueous phase waste products derived from guayule and willow generated from Tail Gas Recycle Pyrolysis (TGRP). The highest average current density achieved was 5.0 ± 0.
View Article and Find Full Text PDFACS Appl Mater Interfaces
November 2018
Department of Chemical & Biomolecular Engineering , University of Tennessee, Knoxville , Tennessee 37996 , United States.
In this work, the properties of univalent, that is, Li, Na, NH, and TEA form perfluorosulfonate (PFSA) membranes are studied and compared to the properties of H form materials. Properties of these polymer membranes including water uptake, density and conductivity, were investigated for membranes exposed to various water activity levels. The water uptake by the membranes decreased in the order H > Li > Na > NH > TEA, the same order as the hydration enthalpy (absolute values) of cations.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
December 2018
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0512, USA.
Furanic and phenolic compounds are problematic compounds resulting from the pretreatment of lignocellulosic biomass for biofuel production. Microbial electrolysis cell (MEC) is a promising technology to convert furanic and phenolic compounds to renewable H. The objective of the research presented here was to elucidate the processes and electron equivalents flow during the conversion of two furanic (furfural, FF; 5-hydroxymethyl furfural, HMF) and three phenolic (syringic acid, SA; vanillic acid, VA; 4-hydroxybenzoic acid, HBA) compounds in the MEC bioanode.
View Article and Find Full Text PDFPharmacoecon Open
June 2017
European Center for Interdisciplinary Research and Education, Panteion University of Political and Social Sciences, 136 Andrea Siggrou Avenue, Kallithea, 17671, Athens, Greece.
Background: Telemedicine units and information technology systems provide special healthcare services to remote populations using telecommunication technology, in order to reduce or even remove the usual and typical face-to-face contact between doctor and patient. This innovative approach to medical care delivery has been expanding for several years and currently covers various medical specialties.
Objective: To facilitate installation of telemedicine systems/units in Greek remote areas, this article presents results of a cost-benefit analysis for two Greek islands, Patmos and Leros, using specific economic criteria.
Microb Biotechnol
January 2018
The University of Tennessee, Knoxville, TN, 37996, USA.
Leveraging nature's biocomplexity for solving human problems requires better understanding of the syntrophic relationships in engineered microbiomes developed in bioreactor systems. Understanding the interactions between microbial players within the community will be key to enhancing conversion and production rates from biomass streams. Here we investigate a bioelectrochemical system employing an enriched microbial consortium for conversion of a switchgrass-derived bio-oil aqueous phase (BOAP) into hydrogen via microbial electrolysis (MEC).
View Article and Find Full Text PDFWater Res
February 2017
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0512, United States. Electronic address:
Phenolic compounds in hydrolysate/pyrolysate and wastewater streams produced during the pretreatment of lignocellulosic biomass for biofuel production present a significant challenge in downstream processes. Bioelectrochemical systems are increasingly recognized as an alternative technology to handle biomass-derived streams and to promote water reuse in biofuel production. Thus, a thorough understanding of the fate of phenolic compounds in bioanodes is urgently needed.
View Article and Find Full Text PDFEnviron Sci Technol
October 2016
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0512, United States.
The objective of this study was to systematically investigate the inhibitory effect of furfural (FF), 5-hydroxymethylfurfural (HMF), syringic acid (SA), vanillic acid (VA), and 4-hydroxybenzoic acid (HBA), which are problematic lignocellulose-derived byproducts, on exoelectrogenesis in the bioanode of a microbial electrolysis cell. The five compound mixture at an initial total concentration range from 0.8 to 8.
View Article and Find Full Text PDFEnviron Sci Technol
November 2015
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0512, United States.
Furanic and phenolic compounds are problematic byproducts resulting from the breakdown of lignocellulosic biomass during biofuel production. The capacity of a microbial electrolysis cell (MEC) to produce hydrogen gas (H2) using a mixture of two furanic (furfural, FF; 5-hydroxymethyl furfural, HMF) and three phenolic (syringic acid, SA; vanillic acid, VA; and 4-hydroxybenzoic acid, HBA) compounds as the substrate in the bioanode was assessed. The rate and extent of biotransformation of the five compounds and efficiency of H2 production, as well as the structure of the anode microbial community, were investigated.
View Article and Find Full Text PDFEcotoxicology
December 2015
Biosciences Division, Oak Ridge National Laboratory, P.O. Box 2008, MS6342, Oak Ridge, TN, 37831-6342, USA.
Bioethanol production output has increased steadily over the last two decades and is now beginning to become competitive with traditional liquid transportation fuels due to advances in engineering, the identification of new production host organisms, and the development of novel biodesign strategies. A significant portion of these efforts has been dedicated to mitigating the toxicological challenges encountered across the bioethanol production process. From the release of potentially cytotoxic or inhibitory compounds from input feedstocks, through the metabolic co-synthesis of ethanol and potentially detrimental byproducts, and to the potential cytotoxicity of ethanol itself, each stage of bioethanol production requires the application of genetic or engineering controls that ensure the host organisms remain healthy and productive to meet the necessary economies required for large scale production.
View Article and Find Full Text PDFBioresour Technol
November 2015
The University of Tennessee, Knoxville, TN 37996, United States; Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6226, United States; Bredesen Center for Interdisciplinary Research and Education, The University of Tennessee, Knoxville 37996, United States. Electronic address:
A new approach to hydrogen production using an integrated pyrolysis-microbial electrolysis process is described. The aqueous stream generated during pyrolysis of switchgrass was used as a substrate for hydrogen production in a microbial electrolysis cell, achieving a maximum hydrogen production rate of 4.3 L H2/L anode-day at a loading of 10 g COD/L-anode-day.
View Article and Find Full Text PDFBiochim Biophys Acta
September 2014
Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, USA; Department of Microbiology, University of Tennessee, Knoxville, TN 37996, USA; Bredesen Center for Interdisciplinary Research and Education, University of Tennessee, Knoxville, TN 37996, USA. Electronic address:
Oxygenic photosynthesis is driven via sequential action of Photosystem II (PSII) and (PSI)reaction centers via the Z-scheme. Both of these pigment-membrane protein complexes are found in cyanobacteria, algae, and plants. Unlike PSII, PSI is remarkably stable and does not undergo limiting photo-damage.
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