We report on the observation of fast hydrogen atoms in a capacitively coupled RF reactor by optical emission spectroscopy. For the analysis we use the prominent H emission line of atomic hydrogen in combination with other lines from molecular hydrogen and argon. Several characteristic emission structures can be identified. One of these structures is related to fast hydrogen atoms traveling from...

A new silver nanoparticle modified screen-printed electrode was developed and applied to the simultaneous determination of Pb(II) and Cu(II). Two different types of silver nanoparticles with different shapes and sizes, Ag nanoseeds and Ag nanoprisms, were microscopically characterized and three different carbon substrates, graphite, graphene and carbon nanofibers, were tested. The best analytic...

was used to provide microamperage (10 to 400 ILA) to vials containing either synthetic urine or supplemented synthetic urine. Bacteria were added to vials, and parameters of growth, bacterial killing, and multiple electrode materials were examined. Escherichia coli and Proteus species were both inhibited and killed at various microamperages and with several electrode types, the most efficient b...

Combination of the exceptional properties of graphene oxide with the selectivity of lead porphyrin leads to fabricate a novel cysteine-selective sensor. The electrode made of 30% PVC, 53% NPOE, 2% NaTPB and 15% GO-PP was found to show the most favorable behavior. The sensor shows a Nernstian response (58.8 mV decade) in the concentration window of 5.0×10-5.0×10 M with detection limit of 8.0×10 ...

A stretchable conducting polymer electrode has been prepared using extrusion 3D printing technology in combination with rational structural patterning, which shows promising mechanical and electrochemical performance.

We present a device capable of electrical cell lysis and evaluation of lysis efficiency in continuous flow using dielectrophoretic cell sorting. We use a combination of AC electrical fields and so-called liquid electrodes to avoid bubble creation at the electrode surface. The electrical field distribution is calculated in different electrode configurations by numerical simulations. Cell sorting...

Wearable ECG devices are used in combination with smartphones to capture, analyze and transmit ECG data to far away hospitals where doctors analyze, diagnose and provide necessary patient feedback. ECG electrode cable misplacement is a significant challenge when untrained patients use them, especially among rural population. Lead misplacement algorithms exists for standard ECG electrode positio...

This study introduces two new processes that highly enable PEDOT:PSS (poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)) as stable coating material for chronic neural stimulation. In first process, strong mechanical bonding between PEDOT:PSS coating and gold electrodes is achieved by creating rough porous surface with partial iodine etching. PEDOT:PSS coating on iodine etched gold electro...

In recent years, there has been a desire to scale down linear quadrupoles. The key advantages of this miniaturization are the portability it enables and the reduction of pump-power needed due to the relaxation on operational pressure. Various attempts at making MEMS-based linear quadrupoles have met with varying degrees of success [1]-[3]. Producing these devices involved some combination of pr...