Chemoresistive Gas Sensors Based on Noble-Metal-Decorated Metal Oxide Semiconductors for H2 Detection

Materials, Journal Year: 2025, Volume and Issue: 18(2), P. 451 - 451

Published: Jan. 19, 2025

Hydrogen has emerged as a prominent candidate for future energy sources, garnering considerable attention. Given its explosive nature, the efficient detection of hydrogen (H2) in environment using H2 sensors is paramount. Chemoresistive sensors, particularly those based on noble-metal-decorated metal oxide semiconductors (MOSs), have been extensively researched owing to their high responsiveness, low limits, and other favorable characteristics. Despite numerous recent studies reviews reporting advancements this field, comprehensive review focusing rational design sensing materials enhance overall performance chemoresistive MOFs lacking. This aims address gap by examining principles, applications, challenges with specific focus Pd-decorated Pt-decorated MOSs-based materials. The observations explanations strategies employed literature, within last three years, analyzed provide insights into latest research directions developments domain. understanding essential designing fabricating highly sensors.

Language: Английский

Dual‐Mode Detection of RNA Demethylation Protein ALKBH3 Using a Two‐Legged DNA‐Walker‐Mediated BiOI/In₂O₃‐Gated Organic Photoelectrochemical Transistor Biosensor

Small, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

Abstract Organic photoelectrochemical transistor (OPECT) biosensors have emerged as prevalent candidates for bioanalytical technologies because of their intrinsic amplification properties and excellent detection performance. Herein, a novel OPECT biosensor analyzing the RNA demethylation protein ALKBH3 is developed. A BiOI/In 2 O 3 type‐II heterojunction employed photoactive material gate, an organic semiconductor, poly(3,4‐ethylenedioxythiophene): poly(styrenesulfonic) (PEDOT:PSS), used channel modification material. ALKBH3‐mediated demethylation, switch, triggered trans‐cleavage activity CRISPR‐Cas12a system, which subsequently leads to failure in formation bipedal DNA walker. Contrarily, ferrocenecarboxylic acid (FcA), acts effective electron donor, cannot be captured, leading modulation gating characteristics degradation current response. Compared conventional method, exhibits higher sensitivity lower limit protein, thereby facilitating monitoring changes under effect environmental pollutants demonstrating crucial biomarker potential evaluating its toxicological effects.

Language: Английский

Konjac glucomannan template based synthesis of porous ZnO nanostructures for enhanced ethanolamine gas detection

Chemical Physics, Journal Year: 2024, Volume and Issue: unknown, P. 112596 - 112596

Published: Dec. 1, 2024

Language: Английский