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Affiliations: University of Houston

Phase Stabilized and Enhanced PtCu3/C oxygen reduction electrocatalysts via Au galvanic displacement

Allard Jr. L.F., Huang D., Koh S., Liu Z., More K.L., Strasser P., Yu C., University of Houston, US
We reported here that the enhanced electrocatalytic oxygen reduction activity of PtCu3/C catalysts was stabilized using Au galvanic displacement of Cu in PtCu3/C. The results showed that mass activities decreased by 24 and 29%, and [...]

Nano-Engineered Dielectrics for Energy Storage Solutions

Badi N., Bensaoula A., University of Houston, US
We present a novel laser processing technique to produce nanodielectric films, which are based on polymer coated metal nanoparticles. The polymer-coated Au NP composite was spin-coated onto a nickel foil serving as the bottom electrode [...]

Force Discrimination for Enhanced Biosensor Specificity of Micro-Retroreflector Assays

Cacao E., Kemper S.M., Knoop J.D., Ruchhoeft P., Sherlock T., Willson R.C., University of Houston, US
In nearly all diagnostic/bioanalytical methods other than mass spectrometry, what is actually detected is a label of some sort, and the sensitivity and simplicity of detection of this label limits assay performance. Non-specific interactions between [...]

PMMA/SWCNTs Composites for Prostate Brachytherapy MRI Contrast Agent Markers

Elliott A.M., Frank S.J., Martirosyan K.S., Stafford R.J., University of Houston, US
Prostate brachytherapy (PB) is an alternative to traditional external beam radiation or surgery for men who have prostate cancer. PB used implanted radioactive titanium seeds and has increased in popularity over recent years due to [...]

Wireless sensor networks for space applications

Benhaddou D., University of Houston, US
The application of Wireless Sensor Network (WSN) into time-sensitive applications, such as remote healthcare, fire tracking and industrial automation, demands support for emergency services with guaranteed Quality of Service (QoS) bounds. In particular, the continuous [...]

BioMEMS for Mitochondriaa Medicine

Grabiec P., Miller J.H., Padmaraj D., Pijanowka D., Wosik J., Xie Lei-Ming, Zagozdzon-Wosik W., University of Houston, US
We designed and fabricated BioMEMS for applications in subcelullar level studies, more specifically for monitoring complementary parameters important in mitochondria medicine.BioMEMS were first simulated using COMSOL 3.4 and then fabricated as an SU-8 based microfluidic [...]

Dielectrophoresis and Comsol Simulation of Cell Entrapment At Electrodes

Miller J.H., Padmaraj D., Pande R., Wosik J., Xie L-M, Zagozdzon-Wosik W., University of Houston, US
Dielectric properties of biological samples change with frequency of the interrogating electric field therefore can be used to obtain information about structures and various kinetic as well as bio-physical and –chemical processes in the cells. [...]

Characterization of graphene segregated on Ni

Chen Y-P, Li H., Lian J., Pei S-S, Yu Q., University of Houston, US
We report a surface segregation approach to synthesize high quality graphenes on Ni under ambient pressure. Graphenes were segregated from Ni surfaces by carbon dissolving at high temperature and cooling down with various cooling rates. [...]

Complex Permittivity Measurements of Single-walled Carbon Nanotubes at Microwave Frequencies

Darne C., Wosik J., Wosik W., Xie L-M, University of Houston, US
In this work we have used a novel method for characterization of complex permittivity for nanotubes over the microwave frequencies. It uses dielectric resonance method and cavity pertrubation technique for extracting the complex permittivities of [...]

Synthesis of Self-aligned Tungsten Nanowires on Single Crystalline Tungsten Substrates

Pei S-S, Wu W., Yu Q., University of Houston, US
Metallic nanowires have attracted much attention due to their unique mechanical, magnetic, optical and electronic properties, and their function as well-defined building blocks for nanodevices.1-3 Tungsten (W), in particular, is of great interest, being promising [...]

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