Publication:
Electrochemical detection of NOx gas based on disposable paper-based analytical device using a copper nanoparticles-modified screen-printed graphene electrode

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Issued Date

2019

Resource Type

Article

File Type

application/pdf

ISSN

9565663

DOI

10.1016/j.bios.2019.111606

Other identifier(s)

2-s2.0-85071253179

Rights Holder(s)

Scopus

Bibliographic Citation

Biosensors and Bioelectronics. Vol 143, No. (2019)

Suggested Citation

Pungjunun K., Chaiyo S., Praphairaksit N., Siangproh W., Ortner A., Kalcher K., Chailapakul O., Mehmeti E. Electrochemical detection of NOx gas based on disposable paper-based analytical device using a copper nanoparticles-modified screen-printed graphene electrode. Biosensors and Bioelectronics. Vol 143, No. (2019). doi:10.1016/j.bios.2019.111606 Retrieved from: https://hdl.handle.net/20.500.14740/5118

Title

Electrochemical detection of NOx gas based on disposable paper-based analytical device using a copper nanoparticles-modified screen-printed graphene electrode

Author(s)

Pungjunun K.
 Chaiyo S.
 Praphairaksit N.
 Siangproh W.
 Ortner A.
 Kalcher K.
 Chailapakul O.
 Mehmeti E.

Abstract

A disposable gas-sensing paper-based device (gPAD) was fabricated in origami design which integrates the gas adsorbent and the electrochemical detection zone in a single device. The gPAD for the determination of NOx gas uses a screen-printed graphene electrode modified with copper nanoparticles (CuNP/SPGE) to achieve high sensitivity and selectivity. The gPAD detects both, NO and NO2 (as NOx) with same current responses. The measurement could be performed directly through differential pulse voltammetry (DPV) with a detection limit as low as 0.23 vppm and 0.03 vppm with exposure times of 25 min and 1 h, respectively. The reproducibility in terms of relative standard deviation was less than 5.1% (n = 7 devices) at 25, 75 and 125 vppm NO2 and the life-time of this device was more than 30 days. The gPAD was applied to detect NOx in air and exhaust gases from cars. In comparison with spectrophotometry, there are no significant differences between both methods using a paired t-test of the results on a 95% confidence level. The designed gPAD can provide a new template model for other gas sensors with features of disposability and portability for fieldwork analysis at low cost. © 2019 Elsevier B.V.

Subject(s)

Analytic equipment
 Chemical detection
 Chemical sensors
 Copper
 Exhaust gases
 Gas adsorption
 Gas detectors
 Graphene
 Graphene devices
 Graphite electrodes
 Metal nanoparticles
 Nitric oxide
 Nitrogen oxides
 Voltammetry
 Copper nanoparticles
 Differential pulse voltammetry
 ELectrochemical detection
 Gas sensing
 Nitrogen dioxides
 Paper-based analytical devices
 Relative standard deviations
 Screen-printed graphene electrodes
 Gas sensing electrodes
 Copper nanoparticle
 Nitrogen oxide
 Copper
 Graphite
 Metal nanoparticle
 Nitric oxide
 Nitrogen dioxide
 Analytic method
 Article
 Comparative study
 Cost control
 Differential pulse voltammetry
 Electrochemical detection
 Exhaust gas
 Limit of detection
 Reproducibility
 Spectrophotometry
 Chemistry
 Electrochemical analysis
 Genetic procedures
 Human
 Isolation and purification
 Paper
 Biosensing Techniques
 Copper
 Electrochemical Techniques
 Graphite
 Humans
 Metal Nanoparticles
 Nitric Oxide
 Nitrogen Dioxide
 Paper

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URI

https://hdl.handle.net/20.500.14740/5118

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Scopus: Year 1983-2021

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