A novel disposable sensor based on reduced graphene oxide-polyaniline (rGO-PANi) for detection of loop-mediated-isothermal-amplification (LAMP) products.
ABSTRACTA fast way to monitor the quality of high-k dielectric layers is wet etching, either monitored by Open Circuit Potential analysis or by Scanning Electron Microscopy. Defect densities in the order of 1.109 defects/cm2 are observed for as-deposited HfO2 layers. It is assumed that the mechanism for wet chemical defect observation is either due to crystallization and/or due to an oxygen deficient HfO2 layer resulting in Si/SiO up-diffusion upon thermal treatment. However, after appropriate post deposition annealing wet etch defect free layers can be prepared.
Ternary alloys SnZn12Sb8, SnZn10Sb10, SnZn8Sb12, SnZn6Sb14, and SnZn2Sb18
were prepared by induction melting. Electrochemical behavior and wetting
(contact angle) of prepared as-cast samples were investigated using open
circuit potential measurement and sessile drop technique. The results of
electrochemical investigation show that open-circuit potential, few seconds
after immersing of electrodes, shifts toward more negative values, indicating
a relatively smaller rate of dissolution during the spontaneous dissolution
process under the curentless conditions. After that period, the values of
potential tend to be constant with time. It was found that all investigated
alloys have poor wettability on copper substrate and the contact angle values
decrease with increasing superheat temperature.
AbstractThe effect of purine (concentration range of 1.00 × 10−6–1.00 × 10−2 M) on the behavior of copper in a 0.5 M Na2SO4 solution (pH 7 and pH 9) was studied using the open circuit potential measurement, potentiodynamic polarization, and chronoamperometry. Potentiodynamic polarization shows that purine acts as a copper corrosion inhibitor in both alkaline and neutral sulfate solutions. The efficiency of inhibition increases as the purine concentration increases. Chronoamperometric results follow the same trend as the results of potentiodynamic polarization. The inhibition effect can also be observed visually by microscopic examination of the electrode surface. Purine is adsorbed on copper surface according to the Langmuir adsorption isotherm.
Reduced graphene oxide-polyaniline film as enhanced sensing interface for the detection of loop-mediated-isothermal-amplification products by open circuit potential measurement