A chemiresistive sensor array from conductive polymer nanowires fabricated by nanoscale soft lithography

Nanoscale ◽  
2018 ◽  
Vol 10 (44) ◽  
pp. 20578-20586 ◽  
Author(s):  
Yang Jiang ◽  
Ning Tang ◽  
Cheng Zhou ◽  
Ziyu Han ◽  
Hemi Qu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Conducting Polymer ◽  
Soft Lithography ◽  
Sensor Array ◽  
Conductive Polymer ◽  
Cost Effective ◽  
Gas Sensor Array ◽  
Chemiresistive Sensor ◽  
Polymer Nanowires

A chemiresistive gas sensor array composed of well-ordered sub-100 nm wide conducting polymer nanowires was fabricated by using cost-effective nanoscale soft lithography.

scholarly journals Decay detection of constructional softwoods using machine olfaction

2021 ◽  
Vol 67 (1) ◽  
Author(s):  
Masaki Suzuki ◽  
Teruhisa Miyauchi ◽  
Shinichi Isaji ◽  
Yasushi Hirabayashi ◽  
Ryuichi Naganawa
Keyword(s):  
Gas Sensor ◽  
Sensor Array ◽  
Wood Decay ◽  
Principal Component ◽  
Cost Effective ◽  
Fungal Species ◽  
Gas Sensor Array ◽  
Test Pieces ◽  
Timber Constructions ◽  
Machine Olfaction

AbstractFungal decomposition of wood severely affects the soundness of timber constructions. The diagnosis of wood decay requires direct observations or sampling by skilled experts. Wood decay often occurs in obscure spaces, including the enclosed inner spaces of walls or under the floor. In this study, we examined the ability of machine olfaction to detect odors of fungi grown on common construction softwoods to provide a novel diagnostic method for wood construction soundness. The combination of a simple device equipped with semiconductor gas sensors (gas sensor array) and multivariate analysis discriminated a fungi-related odor from control odor without instrumental analysis (e.g., gas chromatography). This method is often referred to as machine olfaction or electronic nose. We measured the odor of wood test pieces that were infected with Fomitopsis palustris or Trametes versicolor and sound test pieces using a gas sensor array. The sensor responses of the specimens showed different patterns between the inoculated and control samples. Each specimen class formed independent groups in a principal component score plot, almost regardless of wood species, fungal species, or cultivation period. This method provides a new decay diagnosis method that is cost-effective and easy to operate.

scholarly journals LOCATING GAS SOURCES USING A GAS SENSOR ARRAY

1991 ◽  
Vol 7 (Supple) ◽  
pp. 1565-1568 ◽  
Author(s):  
Yukio Hiranaka ◽  
Hiro Yamasaki
Keyword(s):  
Gas Sensor ◽  
Sensor Array ◽  
Gas Sensor Array

Identification and detection of bioactive compounds in turmeric (Curcuma longa L.) using gas sensor array based on molecularly imprinted polymer quartz crystal microbalance

2021 ◽  
Author(s):  
Fajar IAIN Hardoyono ◽  
Kikin Windhani
Keyword(s):  
Gas Sensor ◽  
Bioactive Compounds ◽  
Quartz Crystal Microbalance ◽  
Molecularly Imprinted Polymer ◽  
Quartz Crystal ◽  
Sensor Array ◽  
Curcuma Longa ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Gas Sensor Array

This study aimed to identify four bioactive compounds in turmeric (Curcuma longa L.) using gas sensor array based on molecularly imprinted polymer-quartz crystal microbalance (MIP-QCM). Four QCM sensors coated with...

Linear temperature microhotplate gas sensor array for automotive cabin air quality monitoring

2008 ◽  
Vol 134 (2) ◽  
pp. 660-665 ◽  
Author(s):  
L. Francioso ◽  
A. Forleo ◽  
A.M. Taurino ◽  
P. Siciliano ◽  
L. Lorenzelli ◽  
...  
Keyword(s):  
Air Quality ◽  
Gas Sensor ◽  
Sensor Array ◽  
Quality Monitoring ◽  
Air Quality Monitoring ◽  
Linear Temperature ◽  
Gas Sensor Array ◽  
Cabin Air Quality

CMUT-based resonant gas sensor array for VOC detection with low operating voltage

2018 ◽  
Vol 273 ◽  
pp. 1556-1563 ◽  
Author(s):  
Sangjun Park ◽  
Inug Yoon ◽  
Sungwoo Lee ◽  
Hyojung Kim ◽  
Ji-Won Seo ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Sensor Array ◽  
Operating Voltage ◽  
Gas Sensor Array ◽  
Voc Detection

Parallel Factor Analysis for Gas Sensor Array Signals

2014 ◽  
Vol 494-495 ◽  
pp. 955-959 ◽  
Author(s):  
Wen Na Zhang ◽  
Guo Jun Qin ◽  
Niao Qing Hu
Keyword(s):  
Factor Analysis ◽  
Gas Sensor ◽  
Sensor Array ◽  
Parallel Factor Analysis ◽  
Time Profile ◽  
Three Dimension ◽  
Gas Sensor Array ◽  
Parallel Factor ◽  
Sample Time

Data from sensor array are often arranged in three-dimension as sample × time × sensor. Traditional methods are mainly used for two-dimension data. When such methods are applied, some time-profile information will lost. To acquire the information of samples, sensors and times more exactly, parallel factor analysis (PARAFAC) is investigated to deal with three-way data array. Through the analysis and classification of three kinds of oil odor samples, the performance of PARAFAC in gas sensor array signal analysis is verified and validated.

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