Processes, compositions, and sensors for sensing a variety of toxic chemicals based on colorimetric changes. Exemplary process for sensing a toxic chemical includes contacting a toxic chemical, or byproduct thereof, with a sorbent that includes a porous metal hydroxide or a porous mixed-metal oxide/hydroxide and a transition metal reactant suitable to react with a toxic chemical or byproduct thereof. The sorbent is contacted with the toxic chemical or byproduct thereof for a sampling time. A difference between a post-exposure colorimetric state of the sorbent and a pre-exposure colorimetric state of the sorbent is determined to thereby detect exposure to, or the presence of, the toxic chemical or byproduct thereof.

A system includes a portable air sensing device and an electronic interface device. The portable air sensing device is configured to sense a concentration of component gas in surrounding air and wirelessly transmit the sensed concentration. The electronic interface device is positioned within a cockpit of an aircraft and is communicatively coupled with the portable air sensing device. The electronic interface device is configured to receive the wirelessly transmitted concentration from the portable air sensing device, and generate, for display, an indication of the received concentration in relation to a defined threshold maximum concentration of the component gas.

Devices and methods of making and using the device for the non-invasive detection of volatile anesthetics are provided. The devices are capable of measuring the concentration of volatile anesthetics transdermally and in a non-invasive manner. The devices and methods can be applied in detection of volatile anesthetics in samples collected from human skin perspiration.

This invention relates to compositions of conducting polymers and their producing methods and applications in sensing technology. The present conducting polymer comprises an electron deficient and an electron rich building block in an alternated repeating unit which can function as sensors to detect, qualify or quantify analytes in fluid and exhibit chemiresistive property and stable performance in normal room temperature and air pressure. In one embodiment, the present invention provides compositions of conducting polymers and devices comprising the present compositions or conducting polymers for sensor application. In another embodiment, the present invention provides methods of detecting target molecules using compositions, conducting polymers or devices of the present invention. The target molecules include without limitation volatile organic compounds (VOCs) which are indicative of the presence or stage or a disease, or indicative of a health status of a subject.

A detecting apparatus includes a detecting carrier and a detecting device. The detecting carrier can be moved into a charging frame or anyone of storing frames of a stock room. The detecting device is installed in the detecting carrier and includes a power module and a detecting module. The detecting module is configured to detect environment information corresponding in position to the detecting carrier. The power module is configured to supply power for operating the detecting apparatus. When the detecting carrier is arranged in the charging frame, the power module is spaced away from the charging frame and is charged without contacting the charging frame.

A detecting apparatus includes a detecting carrier and a detecting device. The detecting carrier can be moved into a charging frame or anyone of storing frames of a stock room. The detecting device is installed in the detecting carrier and includes a power module and a detector for volatile organic compounds (VOC). The power module is configured to supply power for operating the detecting apparatus. The detector includes a chassis, a displacement unit disposed in the chassis, a detecting unit disposed on the displacement unit, and a blowing unit disposed on the chassis. The detecting unit is configured to detect a concentration of VOC corresponding in position to the detecting carrier. The detecting unit can be arranged inside or outside the chassis by using the displacement unit. The blowing unit is configured to blow VOC adhered to the detecting unit.

A detecting apparatus includes a detecting carrier and a detecting device. The carrier can be moved into a charging frame or anyone of storing frames of a stock room. The detecting device is installed in the detecting carrier and includes a power module, a detecting module, and a wireless communication module. The wireless communication module can emit an electricity signal according to the power module. The detecting apparatus is selectively operable in a detecting mode and a charging mode. When the detecting apparatus is in the detecting mode, the detecting carrier randomly enters into one of the storing frames, so that the detecting module is operated to detect surroundings. When the detecting apparatus is in the charging mode, the detecting carrier enters into the charging frame, so that the power module is charged.

A system includes a portable air sensing device and an electronic interface device. The portable air sensing device is configured to sense a concentration of component gas in surrounding air and wirelessly transmit the sensed concentration. The electronic interface device is positioned within a cockpit of an aircraft and is communicatively coupled with the portable air sensing device. The electronic interface device is configured to receive the wirelessly transmitted concentration from the portable air sensing device, and generate, for display, an indication of the received concentration in relation to a defined threshold maximum concentration of the component gas.

A gas concentration prediction method which includes: step 1 of exposing a gas to a specimen A which contains a liquid containing a compound, and to a specimen B which includes a liquid containing the compound in a concentration lower than the concentration of the compound in the specimen A, under the same conditions X, and step 2 of measuring a gas concentration a in the specimen A obtained in step 1, and a gas concentration b in the specimen B obtained in step 1, to obtain a coefficient ? by calculating the relationship between a and b based on the calculation equation ?=a/b.

The subject matter described herein relates to a device and method for estimating the alcohol-by-volume (ABV) of a liquid inside a fermentation or distillation vessel, without opening the vessel or requiring a liquid sample. Other properties of the liquid may also be estimated using this method, by including additional sensors in the device. This method has particular, but not exclusive, application in the home brew, microbrew, home and small batch winemaking, and small-batch distillery industries.