Prototype Alarm Integrating Pulse-Driven Nitrogen Dioxide Sensor Based on Holey Graphene Oxide/InO.

NO seriously threatens human health and the ecological environment. However, the fabrication of highly sensitive NO sensors with rapid response/recovery rates, low detection limits, and ease of integration remains a challenge. Herein, benefiting from the fast carrier transfer and rich active sites, holey graphene oxide (HGO) was adopted to functionalize the InO nanosheet to construct NO gas sensors.

AgS-Decorated One-Dimensional CdS Nanorods for Rapid Detection and Effective Discrimination of n-Butanol.

N-butanol (CHOH) is a volatile organic compound (VOC) that is susceptible to industrial explosions. It has become imperative to develop n-butanol sensors with high selectivity and fast response and recovery kinetics. CdS/AgS composite nanomaterials were designed and prepared by the solvothermal method.

Cadmium sulfide in-situ derived heterostructure hybrids with tunable component ratio for highly sensitive and selective detection of ppb-level HS.

Herein, we reported cadmium sulfide derivatives pine needles-like CdS/CdO heterostructure hybrids synthesized by hydrothermal treatment and subsequent self-template oxidation approach. The component ratio of the CdS/CdO hybrids can be controlled specifically via tuning the annealing treatment protocol, and thereby giving rise to the optimization of morphology, electrical characteristics, and gas sensing properties of derived hybrids. As proof of concept, the pine needles-like CdS/CdO, which obtained after different annealing temperatures and durations, as sensitive material was employed to manufacture HS gas sensors.

Lower coordination CoO mesoporous hierarchical microspheres for comprehensive sensitization of triethylamine vapor sensor.

Monitoring and detecting triethylamine (TEA) vapor are essential in the organic synthesis industry. Two-dimensional CoO nanosheets with large surface areas and multiple active sites are ideal for fabricating chemiresistive gas sensors. However, the face-to-face stacking owing to the high surface energy of nanosheets, would cover up the active sites, obstruct gas diffusion, raise contact resistance, which all hinder its utilization for TEA detection.

[The relationship between expression of Fhit and biological behaviors of hypopharyngeal carcinoma].

Objective: To investigate the expression of fragile histidine triad gene protein (Fhit) and the possible relationship between Fhit and biological behaviors of hypopharyngeal carcinoma.

Method: The expression of Fhit protein in 66 cases with hypopharyngeal carcinoma were detected by rabbit antibody to human FHIT gene protein with SP immunohistochemical method. The relationship between historical grade and lymphatic metastasis were analysed.