Correlating the Local Electrocatalytic Activity of Amorphous Molybdenum Sulfide Thin Films with Microscopic Composition, Structure, and Porosity.

Thin-film electrodes, produced by coating a conductive support with a thin layer (nanometer to micrometer) of active material, retain the unique properties of nanomaterials (., activity, surface area, conductivity, .) while being economically scalable, making them highly desirable as electrocatalysts.

Monitoring compositional changes in Ni(OH) electrocatalysts employed in the oxygen evolution reaction.

Electrochemical water splitting to generate hydrogen has been identified as a possible solution to the storage of intermittent renewable energy. However there are still challenges remaining in the development of stable electrocatalysts for the oxygen evolution half-reaction. Here we investigate the effects that the oxygen evolution reaction (OER) has on an electrodeposited Ni(OH)2 catalyst operated under alkaline conditions.

Rapid isolation and detection of erythropoietin in blood plasma by magnetic core gold nanoparticles and portable Raman spectroscopy.

Unlabelled: Isolating, purifying, and identifying proteins in complex biological matrices are often difficult, time consuming, and unreliable. Herein we describe a rapid screening technique for proteins in biological matrices that combines selective protein isolation with direct surface enhanced Raman spectroscopy (SERS) detection. Magnetic core gold nanoparticles were synthesized, characterized, and subsequently functionalized with recombinant human erythropoietin (rHuEPO)-specific antibody.

Reproducible and label-free biosensor for the selective extraction and rapid detection of proteins in biological fluids.

Erythropoietin (EPO), a glycoprotein hormone of ∼ 34 kDa, is an important hematopoietic growth factor, mainly produced in the kidney and controls the number of red blood cells circulating in the blood stream. Sensitive and rapid recombinant human EPO (rHuEPO) detection tools that improve on the current laborious EPO detection techniques are in high demand for both clinical and sports industry. A sensitive aptamer-functionalized biosensor (aptasensor) has been developed by controlled growth of gold nanostructures (AuNS) over a gold substrate (pAu/AuNS).