The energetics and electronic properties of different topology of Pt wires including linear, zigzag and ladder structures on MoSe2 monolayer have been investigated in the framework of density functional theory ( DFT). The predicted order of stability of Pt wire on MoSe2 monolayer is found to be: linear > ladder > zigzag. Pt wires induce states near the Fermi level of MoSe2 that results into met...

Scanning tunneling spectroscopy of hexanethiolate-protected gold nanoparticles was studied in the presence of volatile organic vapors. The particles were immobilized onto a Au(111) surface that was modified with a hexanethiol self-assembled monolayer. It was found that particle dimensions played a critical role in dictating the STS behaviors in response to exposure to organic vapors, with the o...

We present a label-free biosensor based on electrochemical impedance spectroscopy for the detection of proinflammatory cytokine Tumor Necrosis Factor (TNF-α). Secretion of TNF-α has been correlated to the onset of various diseases including rheumatoid arthritis, Crohn’s disease etc. Gold electrodes were patterned on a silicon substrate and self assembled monolayer of dithiobis-succinimidyl prop...

CO-free hydrogen is produced by the reversible cyclic stepwise steam reforming of methane for use in fuel cells and other processes that are sensitive to CO poisoning. The process consists of two steps involving the decomposition of methane in a first step followed by steam gasification of the surface carbon in a second step. The ease of carbon removal in step II is strongly dependent on temper...