We demonstrate a glucose sensor based on an organic electrochemical transistor (OECT) in which the channel, source, drain, and gate electrodes are made from the conducting polymer poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:PSS). The OECT employs a ferrocene mediator to shuttle electrons between the enzyme glucose oxidase and a PEDOT:PSS gate electrode. The device...

We report the design, fabrication and characterization of micromachined Parylene structures for self-sealing liquid encapsulation applications. Automatic sealing is enabled through the use of an integrated annular-plate stiction valve which greatly reduces device footprint over in-plane configurations. We achieve automatic wafer-level liquid entrapment without using adhesives or processing at e...

Extended azaborine heterocycles are promising biomedical and electronic materials. Herein we report the synthesis of a novel family of azaborine anthracene derivatives and their structural, electrochemical and spectroscopic characterization. We observe that the properties of these materials are remarkably similar to the parent hydrocarbons, suggesting the innocence of the CC to BN bond substitu...

Interfacial Dynamics In article number 2207835, Hsien-Yi Hsu and co-workers systematically study interfacial dynamics of bandgap funnelling in MA3Bi2Cl9−xIx perovskites using temperature-dependent transient photoluminescence electrochemical voltammetric techniques. The photophysical (photo)electrochemical phenomena solid–solid solid–liquid interfaces are therefore confirmed. importance this wor...

We demonstrated a site-specific fabrication of conducting polymer micropatterns by a novel electrochemical micropatterning technology, which utilizes a hydrodynamically focused laminar stream as a dynamic template. The resulting micropatterns in a microfluidic device is a ready-to-use sensor capable of detecting microliter amounts of organic solvent vapors. By employing two different sensing el...

Recently, growing interest in implantable bionics and biochemical sensors spurred the research for developing non-conventional electronics with excellent device characteristics at low operation voltages and prolonged device stability under physiological conditions. Herein, we report high-performance aqueous electrolyte-gated thin-film transistors using a sol-gel amorphous metal oxide semiconduc...

A fast approach for synthesizing gold nanoparticles over electrochemical paper-based devices is reported. The device was fabricated by paper laser pyrolysis carbonization followed in situ synthesis of AuNPs.