Research
Engineered Nanomaterials
We explore the design and use of nanomaterials to address current water contamination challenges, from groundwater contamination to water filtration and harmful algal bloom events.
Engineered Nanomaterials
Nanocomposite Photocatalyst for Simultaneous Deactivation of Cyanobacteria and Degradation of Cyanotoxins
In this research, we are exploring cyanotoxin degradation kinetics of a polymer fiber-nanoparticle photocatalyst. We study nanocomposite assembly, stability, morphology, and composition using materials characterization techniques, and we evaluate cyanotoxin removal in both synthetic and natural water samples. In collaboration with Prof. Wen Zhang (Civil and Environmental Engineering, University of Arkansas), we also evaluate the mechanism and efficacy of cyanobacteria deactivation by our nanocomposite photocatalyst.
Funding: U.S. Geological Survey and the Arkansas Water Resources Center
Project: Demonstration of Photocatalytic Net for In Situ Harmful Algal Bloom Mitigation
Engineered Nanomaterials
Antimicrobial Nanocomposite Membrane
We are studying the antimicrobial response, physical properties, and stability of nanocomposite filtration membranes during water filtration. These nanocomposite membranes have intrinsic antimicrobial activity on the membrane surface, which is envisioned to help reduce membrane fouling during water filtration and enable improved cleaning results, with an ultimate goal of enhancing overall membrane performance for water filtration.
Funding: NSF SBIR program
Project: Anti-Microbial Graphene Oxide Nanofiltration Membrane
Microneedle Patch Technology for Drug Administration to Livestock
Current methods to administer pain medication and other necessary drugs to livestock are challenging for a range of reasons, including animal handling, lifetime of drug efficacy, repeat dose requirements, and physically-demanding tasks on the farmer. In collaboration with Dr. Jorge Almodovar (Chemical Engineering, University of Arkansas) and Dr. Jeremy Powell (Animal Science, University of Arkansas), we are developing a microneedle drug patch technology that can be applied to the skin of livestock. Research activities include patch synthesis, characterization, drug release measurement, and testing in cattle.
Funding: USDA NIFA
Project: Managing pain in cattle undergoing castration using a biodegradable microneedle patch containing meloxicam