InAs Nanowire Transistors as Gas Sensor and the Response Mechanism

Nano Letters ◽  
2009 ◽  
Vol 9 (12) ◽  
pp. 4348-4351 ◽  
Author(s):  
Juan Du ◽  
Dong Liang ◽  
Hao Tang ◽  
Xuan P.A. Gao
Keyword(s):  
Gas Sensor ◽  
Response Mechanism ◽  
Nanowire Transistors

Nanostructured Metal Oxide Gas Sensor

2014 ◽  
pp. 1213-1253
Author(s):  
Jamal Mazloom ◽  
Farhad E. Ghodsi
Keyword(s):  
Metal Oxide ◽  
Gas Sensor ◽  
Recent Progress ◽  
Theoretical Models ◽  
Response Mechanism ◽  
Conduction Model ◽  
Hollow Nanostructures ◽  
Metal Oxide Gas Sensor ◽  
Semiconducting Metal Oxide ◽  
Nanostructured Metal

This chapter provides a review of recent progress in gas sensor based on semiconducting metal oxide nanostructure. The response mechanism and development of various methods to enhancement of sensing properties receives the most attention. Theoretical models to explain the effects of morphology, additives, heterostructured composite and UV irradiation on response improvement were studied comprehensively. Investigations have indicated that 1D nanostructured metal oxide with unique geometry and physical properties display superior sensitivity to gas species. Also, the proposed conduction model in gas sensor based on 1D Metal oxide is discussed. Finally, the response mechanism of hierarchical and hollow nanostructures as novel sensing materials is addressed.

DFT study of response mechanism and selectivity of poly(3,4-ethylenedioxythiophene) towards CO2 and SO2 as gas sensor

2019 ◽  
Vol 30 (4) ◽  
pp. 1427-1436 ◽  
Author(s):  
Joyanta K. Saha ◽  
Md. Sanwar Hossain ◽  
Manik Kumer Ghosh
Keyword(s):  
Gas Sensor ◽  
Dft Study ◽  
Response Mechanism

Hydrogen Response Mechanism of a Proton Pumping Gate FET Gas Sensor

2007 ◽  
Author(s):  
Keiji Tsukada ◽  
Tomiharu Yamaguchi ◽  
Toshihiko Kiwa ◽  
Hironobu Yamada
Keyword(s):  
Gas Sensor ◽  
Proton Pumping ◽  
Response Mechanism ◽  
Hydrogen Response

scholarly journals Analysis of response mechanism of a proton-pumping gate FET hydrogen gas sensor in air

2008 ◽  
Vol 133 (2) ◽  
pp. 538-542 ◽  
Author(s):  
T. Yamaguchi ◽  
M. Takisawa ◽  
T. Kiwa ◽  
H. Yamada ◽  
K. Tsukada
Keyword(s):  
Gas Sensor ◽  
Proton Pumping ◽  
Hydrogen Gas ◽  
Response Mechanism

Chemiresistive Gas Sensors Based on Conducting Polymers

2017 ◽  
pp. 150-180 ◽  
Author(s):  
Sajad Pirsa
Keyword(s):  
Surface Modification ◽  
Gas Sensor ◽  
Conducting Polymer ◽  
Gas Sensors ◽  
Low Cost ◽  
Portable Devices ◽  
Response Mechanism ◽  
Fast Detection ◽  
Chemiresistive Gas Sensors ◽  
Change Response

Chemiresistive gas sensor based on conducting polymer is a type of sensors that presents gas sensors with excellent characters; low-cost fabrication, fast detection, simultaneous determination (array gas sensor), portable devices and so. Theses gas sensors are commonly based on polyaniline (PANI), polypyrrole (PPy), polythiophene (PTh) and their derivatives as a transducer. Common configuration and response mechanism of these sensors are reported in this section. Some factors that induce selectivity to these sensors are discussed. Different materials (conductor or insulant) can be used as a substrate of polymerization. Type of substrate, selective membranes, surface modification of conducting polymer and so can change response behavior of these sensors.

Chemiresistive Gas Sensors Based on Conducting Polymers

2017 ◽  
pp. 543-574
Author(s):  
Sajad Pirsa
Keyword(s):  
Surface Modification ◽  
Gas Sensor ◽  
Conducting Polymer ◽  
Gas Sensors ◽  
Low Cost ◽  
Portable Devices ◽  
Response Mechanism ◽  
Fast Detection ◽  
Chemiresistive Gas Sensors ◽  
Change Response

Chemiresistive gas sensor based on conducting polymer is a type of sensors that presents gas sensors with excellent characters; low-cost fabrication, fast detection, simultaneous determination (array gas sensor), portable devices and so. Theses gas sensors are commonly based on polyaniline (PANI), polypyrrole (PPy), polythiophene (PTh) and their derivatives as a transducer. Common configuration and response mechanism of these sensors are reported in this section. Some factors that induce selectivity to these sensors are discussed. Different materials (conductor or insulant) can be used as a substrate of polymerization. Type of substrate, selective membranes, surface modification of conducting polymer and so can change response behavior of these sensors.

Nanostructured Metal Oxide Gas Sensor

2012 ◽  
pp. 180-221
Author(s):  
Jamal Mazloom ◽  
Farhad E. Ghodsi
Keyword(s):  
Metal Oxide ◽  
Gas Sensor ◽  
Recent Progress ◽  
Theoretical Models ◽  
Response Mechanism ◽  
Conduction Model ◽  
Hollow Nanostructures ◽  
Metal Oxide Gas Sensor ◽  
Semiconducting Metal Oxide ◽  
Nanostructured Metal

This chapter provides a review of recent progress in gas sensor based on semiconducting metal oxide nanostructure. The response mechanism and development of various methods to enhancement of sensing properties receives the most attention. Theoretical models to explain the effects of morphology, additives, heterostructured composite and UV irradiation on response improvement were studied comprehensively. Investigations have indicated that 1D nanostructured metal oxide with unique geometry and physical properties display superior sensitivity to gas species. Also, the proposed conduction model in gas sensor based on 1D Metal oxide is discussed. Finally, the response mechanism of hierarchical and hollow nanostructures as novel sensing materials is addressed.

Responses of Platelets to Strains of Streptococcus sanguis: Findings in Healthy Subjects, Bernard-Soulier, Glanzmann’s, and Collagen-Unresponsive Patients

1987 ◽  
Vol 57 (02) ◽  
pp. 222-225 ◽  
Author(s):  
A H Soberay ◽  
M C Herzberg ◽  
J D Rudney ◽  
H K Nieuwenhuis ◽  
J J Sixma ◽  
...  
Keyword(s):  
Platelet Aggregation ◽  
Healthy Subjects ◽  
Normal Subjects ◽  
Membrane Glycoprotein ◽  
Response Mechanism ◽  
Platelet Response ◽  
Induce Platelet Aggregation ◽  
Streptococcus Sanguis ◽  
Lag Times ◽  
Bernard Soulier Syndrome

SummaryThe ability of endocarditis and dental strains of Streptococcus sanguis to induce platelet aggregation in plasma (PRP) from normal subjects were examined and compared to responses of PRP with known platelet membrane glycoprotein (GP) and response defects. S. sanguis strains differed in their ability to induce normal PRPs to aggregate. Strains that induced PRP aggregation in more than 60% of donors were significantly faster agonists (mean lag times to onset of aggregation less than 6 min) than those strains inducing response in PRPs of fewer than 60% of donors.Platelets from patients with Bernard-Soulier syndrome aggregated in response to strains of S. sanguis. In contrast, platelets from patients with Glanzmann’s thrombasthenia and from a patient with a specific defect in response to collagen were unresponsive to S. sanguis. These observations show that GPIb and V are not essential, but GPIIb-IIIa and GPIa are important in the platelet response mechanism to S. sanguis. Indeed, the data suggests that the platelet interaction mechanisms of S. sanguis and collagen may be similar.

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