Multi-layer conducting polymer gas sensor arrays for olfactory sensing

Slater, Jonathan M.; Paynter, J.D.; Watt, Esther J.

doi:10.1039/an9931800379

Cited by 73 publications

(46 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They are sensitive to alcohols, acetone, benzene and other polar volatile chemicals (Hatfield et al 1994). References show applications of CPs in foodstuffs like beer and other alcoholic beverages (Pearce et al 1993;Slater et al 1993), olive oil , orange juices (Bazemore et al 1998), fishes (Luzuriaga et al 1999), milk (Magan et al 2001). Figure 3 shows the responses of polymer sensors (AromaScan A20S) to virgin olive oils characterised by different levels of oxidation.…”

Section: Conducting Polymer Sensorsmentioning

confidence: 99%

Sensors: From biosensors to the electronic nose

García‐González

Aparicio

2002

Grasas y Aceites

View full text Add to dashboard Cite

Section: Conducting Polymer Sensorsmentioning

confidence: 99%

Sensors: From biosensors to the electronic nose

García‐González

Aparicio

2002

Grasas y Aceites

View full text Add to dashboard Cite

“…Strategies used to improve their molecular recognitive capability have included the incorporation of different counterions into the polypyrrole film, since this was found to change the morphology of thin films and the concentration of chemical defects (17,18). Alternative approaches include chemical derivatization (19) and the use of sensor arrays with pattern recognition techniques (10).…”

Section: Introductionmentioning

confidence: 99%

Poly N-(2-cyanoethyl)pyrrole as a selective film for the thickness-shear-mode acoustic wave sensor

Deng¹,

Stone²,

Thompson³

1995

Can. J. Chem.

View full text Add to dashboard Cite

Poly N-(2-cyanoethy1)pyrrole films have been synthesized by electrochemical polymerization and characterized by cyclic voltammetry, scanning electron microscopy, and X-ray photoelectron spectroscopy. Polymeric coatings prepared on the surface of a thickness-shear-mode acoustic wave sensor have been used to examine response selectivity to a number of gas-phase probe molecules. The responses of the poly N-(2-cyanoethy1)pyrrole based sensor are compared with the parent polypyrrole device and rationalized in terms of the molecular interactions between probes and polymer films. The polar cyano functionality enhances interactions with analytes such as acetonitrile.Key words: gas sensor, thickness-shear-mode acoustic wave sensor, poly N-(2-cyanoethy1)pyrrole film, polypyrrole film, conducting polymer.RCsumC : On a synthCtisC des films de poly N-(2-cyanoCthy1)pyrrole par polymCrisation Clectrochimique et on les a caractCrisCs par voltampCromCtrie cyclique, microscopie tlectronique A balayage et par spectroscopic photoClectronique des rayons X. On a utilisC les rev&tements polymtriques prCparCs sur la surface d'un senseur d'onde acoustique dans le mode de cisaillement de 1'Cpaisseur pour examiner la stlectivitC de la rCponse A un certain nombre de molCcules sondes en phase gazeuse. On a compare les rkponses du senseur base sur le poly-N-(2-cyanoCthy1)pyrrole avec celles de 1'Cquivalent ne portant que le polypyrrole parent et on a rationalis6 les diffkrences en fonction d'interactions moltculaires entre les sondes et les films de polymbre. Une fonction polaire cyano augmente les interactions avec les produits A analyser, comme acetonitrile.Mots clks : senseur de gaz, senseur d'onde acoustique dans le mode cisaillement de l'Cpaisseur, film de poly-N-(2-cyanoCthyl)pyrrole, film de polypyrrole, polymbre conducteur.

show abstract

“…Conducting polymers are unique because they show physical and chemical property changes after chemical or electrochemical treatment. These changes can be used in applications such as sensors [2], batteries [3], extraction coatings [4], and microelectronic devices [5]. Recently, the potential use of these polymers in trace analysis [6], especially in solid-phase microextraction (SPME), has raised considerable interest [7,8].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposited polyaniline as a fiber coating for solid‐phase microextraction of organochlorine pesticides from water

Li¹,

Zhong²,

Chen³

2008

J of Separation Science

View full text Add to dashboard Cite

The study on the performance of polyaniline as a fiber coating for solid-phase microextraction (SPME) purposes has been reported. Polyaniline coatings were directly electrodeposited on the surface of a stainless steel wire and applied for the extraction of some organochlorine pesticides (OCPs) from water samples. Analyses were performed using GC-electron capture detection (GC-ECD). The results obtained show that polyaniline fiber coating is suitable for the successful extraction of organochlorine compounds. This behavior is most probably due to the porous surface structure of polyaniline film, which provides large surface areas and allowed for high extraction efficiency. Experimental parameters such as adsorption and desorption conditions were studied and optimized. The optimized method has an acceptable linearity, with a concentration range of 1-5000 ng/L. Single fiber repeatability and fiber-to-fiber reproducibility were less than 12 and 17%, respectively. High environmental resistance and lower cost are among the advantages of polyaniline fibers over commercially available SPME fibers. The developed method was applied to the analysis of real water samples from Yangtse River and Tianmu Lake.

show abstract

Multi-layer conducting polymer gas sensor arrays for olfactory sensing

Cited by 73 publications

References 8 publications

Sensors: From biosensors to the electronic nose

Sensors: From biosensors to the electronic nose

Poly N-(2-cyanoethyl)pyrrole as a selective film for the thickness-shear-mode acoustic wave sensor

Electrodeposited polyaniline as a fiber coating for solid‐phase microextraction of organochlorine pesticides from water

Contact Info

Product

Resources

About