AlGaN/GaN heterostructure-based devices can be engineered through heterostructure design to have a high transconductance near zero gate drain voltage, potentially enabling high sensitivity, reference electrode free, ion sensing.
To obtain high sensitivity, sensing electrodes were designed in a parallel overlap electrode structure, including two excitation electrodes patterned on the roof and a sensing electrode patterned on the bottom floor.
The titration curves were symmetrical with very well-defined inflexion points of potential jumps indicating the high sensitivity of the electrode.
This suggests a high sensitivity of the electrode for protein recognition even though no mediator is incorporated, which also implies the label free capability of the electrode material for protein detection.
The titration curves were symmetrical with a very well defined potential jump of about 250 MV for MOX-TPB, MOX-PM and MOX-PT respectively, indicating the high sensitivity of the electrodes.
These characteristics together with long-term stability, low detection limit, and high sensitivity of the modified electrode are highly promising for amperometric determination of hydrogen peroxide.
Dopamine and its metabolites were quantified electrochemically by a dual-carbon electrode high sensitivity analytical cell (Model 5011, ESA, USA).
Being employed as an integrated binder-free electrode, Ni(OH 2 FNF electrode exhibits high sensitivity (2617.4 μA cm−2 mM−1) and reliable stability towards electrooxidation of glucose.
Porous and self-standing structures are highly promising as membranes, electrodes, high sensitivity gas sensors, and supercapacitors due to their high surface area and tuneable surface properties.
By transferring the copper electrode onto the polydimethylsiloxane, which acted as stretchable substrate, the electrode exhibits high sensitivity, and its resistivity is as low as ~90 μΩ cm.
