Labyrinthine Wrinkle-Patterned Fiber Sensors Based on a 3D Stress Complementary Strategy for Machine Learning-Enabled Medical Monitoring and Action Recognition.

Fiber strain sensors show good application potential in the field of wearable smart fabrics and equipment because of their characteristics of easy deformation and weaving. However, the integration of fiber strain sensors with sensitive response, good stretchability, and effective practical application remains a challenge. Herein, this paper proposes a new strategy based on 3D stress complementation through pre-stretching and swelling processes, and the polydimethylsiloxane (PDMS)/silver nanoparticle (AgNPs)/MXene/carbon nanotubes (CNTs) fiber sensor with the bilayer labyrinthian wrinkles conductive network on the PU fiber surface is fabricated.

SnS Quantum Dot-Based Optoelectronic Flexible Sensors for Ultrasensitive Detection of NO Down to 1 ppb.

Transition-metal dichalcogenides (TMDs) have gained intense interest for their outstanding optoelectronic and electrochemical characteristics, utilized in versatile applications such as gas sensors and photodetectors. However, TMD-based chemiresistors suffer from poor sensitivity at ppb-level detection, and the experimental detection limit fails to reach 1 ppb. Herein, SnS QD/graphene nanoheterostructures as functional flexible sensors are fabricated for NO gas and light detection at room temperature.

High Sensitivity, Humidity-Independent, Flexible NO and NH Gas Sensors Based on SnS Hybrid Functional Graphene Ink.

Here, a high sensitivity gas sensing ink based on sulfonated rGO (S-rGO) decorated with SnS is synthesized for room temperature NO and NH detection. This sensing ink demonstrated an excellent sensitivity to ppb-level NO (17% response to 125 ppb) and sub-ppm-level NH (11% response to 1 ppm). The unique absorption properties of SnS improve the sensitivity of S-rGO 4.