A5076573180- Surface Modification and Superhydrophobicity
- Shape Memory Alloy Transformations
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Advanced Sensor and Energy Harvesting Materials
- Metal and Thin Film Mechanics
- Bone Tissue Engineering Materials
- Graphene and Nanomaterials Applications
- Nanoparticle-Based Drug Delivery
- Graphene research and applications
- Electrochemical Analysis and Applications
- Gas Sensing Nanomaterials and Sensors
- Fluid Dynamics and Thin Films
- Electrochemical sensors and biosensors
- Icing and De-icing Technologies
- Conducting polymers and applications
- Optical Coatings and Gratings
- biodegradable polymer synthesis and properties
- Electrospun Nanofibers in Biomedical Applications
- Supercapacitor Materials and Fabrication
- Titanium Alloys Microstructure and Properties
- High Entropy Alloys Studies
- Quantum Dots Synthesis And Properties
- Electrohydrodynamics and Fluid Dynamics
- Magnetic Properties of Alloys
University of Arkansas at Little Rock
2013-2023
University of Arkansas at Fayetteville
2014
National Institute for Research and Development of Isotopic and Molecular Technologies
2010
National Center for Toxicological Research
2010
Highly biocompatible luminescent superparamagnetic nanocomposites have been synthesized from Fe3O4/SiO2−QDs (IQ). Fe3O4 nanoparticles coated with a silica shell, Fe3O4/SiO2 (IOS), and water-soluble CdSe−ZnS quantum dots (QDs) were assembled together by the conjugation of an SH group. X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive analysis (EDX), UV−vis absorption emission spectroscopy, magnetometry applied to characterize nanocomposites. The exhibited...
Abstract Supercapacitors are beneficial as energy storage devices and can obtain high capacitance values greater than conventional capacitors power densities compared to batteries. However, in order improve upon the overall cost, density, charge-discharge rates, electrode material of supercapacitors needs be fine-tuned with an inexpensive, conducting source. We prepared a Co(III) complex polypyrrole (PPy) composite thin films (CoN 4 - PPy) that was electrochemically deposited on surface...
Abstract An ongoing need for new cancer therapeutics exists, especially ones that specifically home and target triple-negative breast cancer. Because express low or are devoid of estrogen, progesterone, Her2/Neu receptors, another must be used advanced drug delivery strategies. Here, we engineered a nanodrug system consisting silver-coated gold nanorods (AuNR/Ag) targeting epithelial cell adhesion/activating molecule (EpCAM) loaded with doxorubicin. This system, AuNR/Ag/Dox-EpCAM, was found...
The fabrication of controlled, self-organized, highly ordered tungsten and aluminum nanorods was accomplished via the lattice template-assisted glancing angle sputtering technique. typical growth mechanism traditional deposition technique biased by self-organized seeds resulting in superior quality terms size control, distribution, long range order. morphology, size, distribution were controlled characteristics template indicating ability to obtain metallic with tunable distributions...
Hybrid nanocomposite films of ITO-coated, self-assembled porous nanostructures tungsten trioxide (WO3) were fabricated using electrochemical anodization and sputtering. The morphology chemical nature the studied by Scanning Electron Microscopy (SEM) X-ray Photoelectron Spectroscopy (XPS), respectively. photoelectrochemical (PEC) properties WO3 in various alkaline electrolytes compared with those titania nanotubes. A new type electrolyte containing a mixture NaOH KOH was proposed for first...
The nature of water interaction with tungsten nanorods (WNRs) fabricated by the glancing-angle deposition technique (GLAD)-using RF magnetron sputtering under various Ar pressures and substrate tilting angles then subsequent coating Teflon-has been studied reported. Such nanostructured surfaces have shown strong repellency properties apparent contact (AWCA) as high 160°, which were found to depend strongly upon fabrication conditions. Variations in pressure angle resulted generation WNRs...
A conducting polymer of lignosulfonic acid-grafted, polyaniline-doped camphorsulfonic acid (LS-PANI-CSA), created via a low-temperature solution process, has been explored as an efficient hole-transport layer (HTL) for inverted single cation-anion CH3NH3PbI3 perovskite solar cells. The performance the cell was optimized in this study by tuning morphology and work function LS-PANI-CSA films using dimethylsulfoxide (DMSO) solvent treatment. Results showed that DMSO washing enhanced electronic...
Advances in anticancer chemotherapy have been hindered by the lack of biocompatibility new prospective drugs. One significant challenge concerns water insolubility, which compromises bioavailability drugs leading to increased dosage and higher systemic toxicity. To overcome these problems, nanodelivery has established as a promising approach for increasing efficacy lowering required chemotherapeutics. The naturally derived compound, parthenolide (PTL), is known its anti-inflammatory...
Dendritic cells (DCs) can acquire, process, and present antigens to T-cells induce an immune response. For this reason, targeting cancer DCs in order cause response against is emerging area of nanomedicine that has the potential redefine way certain cancers are treated. The use plasmonically active silver-coated gold nanorods (henceforth referred as plasmonic nano vectors (PNVs)) carriers for DC tumor vaccines not been presented before. Effective must be able phagocytized by DCs, low...
Abstract NiO‐Mn 2 O 3 /C nanocomposite was synthesized from chitosan, a renewable biopolymer, NiO and MnO pyrolyzed at 500 °C under nitrogen. The morphology of material characterized with various microscopic analyses. graphitic carbon showed metal nanoparticles dispersed on the that could be clearly differentiated. X‐ray photoelectron spectroscopy indicated Mn species reduced +4 to +3 oxidation state, while Ni remained as NiO, which further supported by diffraction. electrochemical behavior...
Abstract Methods for the efficient and affordable remediation of oil spills chemical leaks are crucially needed in today’s environment. In this study, we have developed a simple, magnetic, porous material based on polydimethylsiloxane (PDMS) steel wool (SW) that can fulfill these needs. The PDMS-SW presented here is superhydrophobic, superoleophilic, capable absorbing separating oils organic solvents from water. mechanically chemically stable, even salty environments, be magnetically guided....
Here, we present the process of water droplet evaporation over hydrophobic/superhydrophobic tungsten nanorod (WNRs) surfaces with various nanoscale morphologies and porosities. The WNR were fabricated by varying both Ar pressure substrate tilting angle in radiofrequency magnetron sputtering using glancing deposition technique; their characteristics analyzed electron/atomic force microscopy spectroscopy. variation droplets' contact angle, line diameter, central height as a function time...
A wide variety of biomaterials are utilized in tissue engineering to promote cell proliferations vitro or growth vivo. The combination cells, extracellular matrices, and biocompatible materials may make it possible grow functional living tissues ranging from bone nerve cells. In regeneration, polymeric scaffolds can be enhanced by the addition bioactive materials. To this end, study designed several ratios polyurethane (PU) nano-hydroxyapatite (nHA) composites (PU-nHA ratios: 100/0, 90/10,...