By a News Reporter-Staff News Editor at Clinical Trials Week -- New research on Clinical Research is the subject of a report. According to news reporting from Gainesville, Florida, by NewsRx journalists, research stated, "Carbon and noble metal nanomaterials exhibit unique properties that have been explored over the last few decades for developing electrochemical sensors and biosensors. Hybridization of nanometals to carbon nanomaterials such as graphene or carbon nanotubes produces a synergistic effect on the electrocatalytic activity when compared to either material alone."
The news correspondents obtained a quote from the research from the University of Florida, "However, to date there are no comparative studies that directly investigate the effects of nanocarbon concentration and nanocomposite arrangement on electron transport. This comparative study investigated the efficacy of various platinum-carbon hybrid nanostructures for amperometric biosensing. Electroactive surface area, sensitivity towards hydrogen peroxide, response time, limit of detection, and surface roughness were measured for various hybrid nanomaterial arrangements. Both design factors (nanocarbon concentration and network arrangement) influenced the performance of the reduced graphene oxide-based platforms; whereas only nanomaterial arrangement affected the performance of the carbon nanotube-composites. The highest sensitivity towards hydrogen peroxide for reduced graphene oxide nanocomposites (45 ± 3.2 ?A mM(-1)) was measured for a graphene concentration of 2 mg mL(-1) in a 'sandwich' structure; nanoplatinum layers enveloping the reduced graphene oxide. Likewise, the best carbon nanotube performance toward H2O2 (49 ± 1.4 ?A mM(-1)) was measured for a sandwich-type structure with nanoplatinum. The enhanced electrocatalytic activity of this 'sandwich' structure was due to a combined effect of electrical junctions formed amongst nanocarbon, and nanocomposite soldering to the electrode surface."
According to the news reporters, the research concluded: "The top-down carbon-platinum hybrid nanocomposites in this paper represent a simple, low-cost, approach for formation of high fidelity amperometric sensors with remarkable performance characteristics that are similar to bottom-up fabrication approaches."
For more information on this research see: A comparative study of carbon-platinum hybrid nanostructure architecture for amperometric biosensing. Analyst, 2014;139(3):660-7. (Royal Society of Chemistry - www.rsc.org/; Analyst - pubs.rsc.org/en/journals/journalissues/an)
Our news journalists report that additional information may be obtained by contacting D.C. Vanegas, Dept. of Agricultural & Biological Engineering, University of Florida, 1741 Museum Road, Gainesville, FL, United States. Additional authors for this research include M. Taguchi, P. Chaturvedi, S. Burrs, M. Tan, H. Yamaguchi and E.S McLamore (see also Clinical Research).
Keywords for this news article include: Florida, Chemicals, Chemistry, Nanocarbon, Gainesville, Nanomaterial, United States, Nanocomposite, Nanotechnology, Clinical Research, Hydrogen Peroxide, Emerging Technologies, North and Central America, Clinical Trials and Studies.
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