ncbi polymer gas sensor

20200613· Sharma S, Hussain S, Singh S, Islam SS (2014) MWCNTconducting polymer composite based ammonia gas sensors: a new approach for complete recovery process. Sens Actuator B Chem 194:213–219 CrossRef Google Scholar. 49. Agbor NE, Petty MC, Monkman P (1995) Polyaniline thin films for gas sensing. Sens Actuators B Chem 173–179 Google Scholar. 50. Chiang CJ et al (2013) In …

20051223· The method of manufacturing an ultrahigh sensitivity metal oxide gas sensor according to the present invention comprises spinning a mixed solution containing a metal oxide precursor and a polymer on a sensor electrode to form a composite fiber in which the metal oxide precursor and the polymer are mixed, and the composite Thermocompressing or thermopressing the fibers, and heat …

20210106· The gassensing responses of the conducting polymerinorganic nanocompositebased sensors are obtained by recording the timedependent film resistance change as a function of target gas concentration. The film resistance value changes upon the exposure of reducing/oxidizing gas, and gradually restores to the original state when the target gas flow is removed. The gassensing …

20180622· National Center for Biotechnology Information. PubChem . About. Blog. Submit. Contact. Search PubChem. patent Summary; Gas sensor and member using metal oxide nanofibers including nanocatalysts by using chitosanmetal complexes, and manufacturing method thereof. Cite. Download. Patent: KR101973901B1: Inventor: KIM IL DOO. JEONG YONG JIN. KOO WON TAE. …

20100603· The gaspolymer interaction changes the work function of the polymer, which can be explained by a secondary doping of the polymer by the adsorbed gas molecule. Studies have revealed that the central metal ion in MPcTS plays an important role in the chemical sensing properties toward NO 2 , chlorinated hydrocarbons, and organophosphorous compounds in the low ppm concentration range.

20170918· The sensor response of the polymer/MWCNT composite gas sensor array was evaluated by measuring the change in its resistance upon exposure to an analyte (target gas) and nitrogen (N 2, %, background gas). The flow rates of both the target gas and the background gas were controlled to under 350 mL/min by using a mass flow controller. The experimental setup used in the …

Therefore, HCl gas detection sensors should be installed at workplaces where trace HCl gas is continuously generated. Even though various polymerbased HClgassensing films have been developed, simpler and novel sensing platforms should be developed to ensure the cost effectiveness and reusability of the sensing platforms. Therefore, we present a simple strategy to fabricate reusable …

This review focuses on polymer fieldeffect transistor (PFET) based gas sensor with polymer as the sensing layer, which interacts with gas analyte and thus induces the change of sourcedrain current (ΔI SD).Dependent on the sensing layer which can be semiconducting polymer, dielectric layer or conducting polymer gate, the PFET sensors can be subdivided into three types.

The nanowire chemiresistive gas sensor is demonstrated for NH 3 and NO 2 detection at room temperature and shows a limit of detection at ppb level, which is compatible with nanoscale PEDOT:PSS gas sensors fabricated with the conventional lithography technique. In comparison with PEDOT:PSS thinfilm gas sensors, the nanowire gas sensor exhibits higher sensitivity and a much faster …

20100513· The gas sensors based on polymercoated resonant microcantilevers for volatile organic compounds (VOCs) detection are investigated. A method to characterize the gas sensors through sensor calibration is proposed. The expressions for the estimation of the characteristic parameters are derived. The effect of the polymer coating location on the sensor''s sensitivity is investigated and the …

20051223· National Center for Biotechnology Information. PubChem. About. Blog. Submit. Contact. Search PubChem. patent Summary; Ultrasensitive metal oxide gas sensor and fabrication method thereof. Cite. Download. Patent: CN101091111A: Inventor: AVNER ROTHSCHILD (KR) Assignee: KOREA INST SCI TECH (KR) Date: Priority . 2005/12/23 . This web page summarizes information …

20210713· Being acidic, H 2 S gas facilitates the sensing mechanism by the transfer of a proton among the acidic gas molecules and basic amino groups from the unfinished chitosan chains. 36 The sensing mechanism for the CS + IL polymer films has been previously outlined, 29 where the combination of CS and IL provides both amino groups and hydroxyl groups with nonbonding electrons …

Earlier in [1,2,3,4,5,6,7], it was shown that one of the most promising fields of application of metal oxide 1D nanomaterials is the development of conductometric gas sensors based on will be shown below, metal oxide nanofibers are also promising materials for these applications since gassensitive layers based on them are characterized by high porosity and large surfacetovolume ...

In this study, we firstly report that hydrophilic graphite nanoparticles were successfully synthesized by liquid phase pulsed laser ablation method and the carbonpolymer composite sensor prepared with the nanoparticles showed a markedly enhanced gas sensing performance. The pulsed laser ablation of graphite rod in water generated well dispersed hydrophilic graphite nanoparticle and they ...

20060407· Keywords: Conducing polymer, ammonia gas sensors, swift heavy ions, polymer composites. Introduction. Conducting polymers have attracted considerable interest due to their various applications in organic lightemitting diodes (OLEDs) , lithography , electrode material , electromagnetic shielding and sensing [56]. Sensors made from conducting polymers as varied as polypyrrole ...

JP2002117865A chemical patent summary.

Poor selectivity and strong humidity are two bottlenecks for the application of gas sensors to exhaled breath analysis. In this work, we utilized the adsorption, dissolution, ionization, and migration proces … ProtonConductive Gas Sensor: a New Way to Realize Highly Selective Ammonia Detection for Analysis of Exhaled Human Breath ACS Sens. 2020 Feb 28;5(2):346352. doi: /acssensors ...

WO2008014894A1 chemical patent summary.

JP2001126739A chemical patent summary.

20201222· Hence, in order to create new gas sensors tailored to the detection of analytes of interest, it is possible to devise a strategy of substitution of the 2octyldodecyl groups labelled as R in Figure 1 b with appropriate hydrophilic or hydrophobic groups, that add low concentrations dopant molecules to the polymer to modify the band gaps within the material, and of course to explore the wide ...

20180501· Gas sensors with particular types of materials can be used as moisture sensors. Abstract. Polymers are indispensable component of modern sensor devices. Gauges play an important role in medicine, control of chemical reactions and identification of gases or may even be used as electric noses or tongues. These and many other types of sensors are described in the given article and some real …

20170122· This review focuses on polymer fieldeffect transistor (PFET) based gas sensor with polymer as the sensing layer, which interacts with gas analyte and thus induces the change of sourcedrain current (ΔI SD). Dependent on the sensing layer which can be semiconducting polymer, dielectric layer or conducting polymer gate, the PFET sensors can be subdivided into three types. For each …

In this study, we designed a novel molecularly imprinted polymer (MIP), Antimony Doped Tin Oxide (ATO)silica composite sol, which was made using a solgel method. Then a sensitive and selective imprinted electrochemical sensor was constructed with the …

20160623· National Center for Biotechnology Information. PubChem. About. Blog. Submit. Contact. Search PubChem. patent Summary; Gas sensor, and method for measuring concentrations of plurality of target components in gas to be measured . Cite. Download. Patent: WO2017222002A1: Inventor: NAKAGAKI KUNIHIKO (DE) Assignee: NGK INSULATORS LTD (JP) Date: Priority . 2016/06/23. This …

20071009· National Center for Biotechnology Information. PubChem. About. Blog. Submit. Contact. Search PubChem. patent Summary; Multifunctional Potentiometric Gas Sensor Array With an Integrated Temperature Control and Temperature Sensors. Cite. Download. Patent: US2010264900A1: Inventor: BLACKBURN BRYAN M (US) WACHSMAN ERIC D (US) Assignee : UNIV FLORIDA (US) Date: …

In this Letter, we developed a nanostructured conductive polymerbased gas sensor with high sensitivity of Δ R/ R 0 = 225% toward 5 ppm ammonia NH 3 and unprecedented sensitivities of 46% and 17% toward 5 ppm putrescine and cadaverine, respectively. The gas sensor plays a critical role as a sensitive switch in the circuit of the NFC tag and enables a smartphone to readout meat spoilage when ...