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Article: A sensitive electrochemical impedance spectroscopy method for detection of polyimide degradation by microorganisms

TitleA sensitive electrochemical impedance spectroscopy method for detection of polyimide degradation by microorganisms
Authors
KeywordsBiodegradation
Biodeterioration
Electrochemical Impedance Spectroscopy
Electronic Insulation
Fungi
Polyimides
Issue Date2000
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1566-2543
Citation
Journal Of Polymers And The Environment, 2000, v. 8 n. 4, p. 167-174 How to Cite?
AbstractAn electrochemical inpedence spectroscopy (EIS) technique was evaluated for monitoring microbial degradation of electronic packaging polyimides. The microbial inoculum was a mixed culture of fungi isolated previously from deteriorated polyimides. The active fungal consortium comprised Aspergillus versicolor. Cladosporium cladosporioides, and a Chaetomium species. After inoculation, fungal growth on the polyimides resulted in distinctive EIS spectra indicative of polymer insulation failure, which directly related to polymer integrity. Degradation appeared to occur in a number of steps and two distinctive stages in the decline of film resistance were observed in the inoculated EIS cells within the 2 and 10 weeks after inoculation. The early stage of resistance decrease may be related to the ingress of water molecules and ionic species into the polymeric materials, whereas the second stage probably resulted from partial degradation of the polymers by fungal growth on the polymer film. The relationship between changes of impedance spectra and microbial degradation of the polymer was further supported by scanning electron microscopy (SEM) observations of fungi growing on the surface of the inoculated polyimides. Our data indicate that the EIS can be used in detection of early degradation of resistant polymers and polyimides that are susceptible to biodeterioration.
Persistent Identifierhttp://hdl.handle.net/10722/178717
ISSN
2015 Impact Factor: 1.969
2015 SCImago Journal Rankings: 0.648
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorGu, JGen_US
dc.contributor.authorCheng, SPen_US
dc.contributor.authorLiu, Jen_US
dc.contributor.authorGu, JDen_US
dc.date.accessioned2012-12-19T09:49:18Z-
dc.date.available2012-12-19T09:49:18Z-
dc.date.issued2000en_US
dc.identifier.citationJournal Of Polymers And The Environment, 2000, v. 8 n. 4, p. 167-174en_US
dc.identifier.issn1566-2543en_US
dc.identifier.urihttp://hdl.handle.net/10722/178717-
dc.description.abstractAn electrochemical inpedence spectroscopy (EIS) technique was evaluated for monitoring microbial degradation of electronic packaging polyimides. The microbial inoculum was a mixed culture of fungi isolated previously from deteriorated polyimides. The active fungal consortium comprised Aspergillus versicolor. Cladosporium cladosporioides, and a Chaetomium species. After inoculation, fungal growth on the polyimides resulted in distinctive EIS spectra indicative of polymer insulation failure, which directly related to polymer integrity. Degradation appeared to occur in a number of steps and two distinctive stages in the decline of film resistance were observed in the inoculated EIS cells within the 2 and 10 weeks after inoculation. The early stage of resistance decrease may be related to the ingress of water molecules and ionic species into the polymeric materials, whereas the second stage probably resulted from partial degradation of the polymers by fungal growth on the polymer film. The relationship between changes of impedance spectra and microbial degradation of the polymer was further supported by scanning electron microscopy (SEM) observations of fungi growing on the surface of the inoculated polyimides. Our data indicate that the EIS can be used in detection of early degradation of resistant polymers and polyimides that are susceptible to biodeterioration.en_US
dc.languageengen_US
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1566-2543en_US
dc.relation.ispartofJournal of Polymers and the Environmenten_US
dc.subjectBiodegradationen_US
dc.subjectBiodeteriorationen_US
dc.subjectElectrochemical Impedance Spectroscopyen_US
dc.subjectElectronic Insulationen_US
dc.subjectFungien_US
dc.subjectPolyimidesen_US
dc.titleA sensitive electrochemical impedance spectroscopy method for detection of polyimide degradation by microorganismsen_US
dc.typeArticleen_US
dc.identifier.emailGu, JD: jdgu@hkucc.hku.hken_US
dc.identifier.authorityGu, JD=rp00701en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1023/A:1015293626335en_US
dc.identifier.scopuseid_2-s2.0-0034469503en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034469503&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume8en_US
dc.identifier.issue4en_US
dc.identifier.spage167en_US
dc.identifier.epage174en_US
dc.identifier.isiWOS:000175453700003-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridGu, JG=7403130153en_US
dc.identifier.scopusauthoridCheng, SP=18039405400en_US
dc.identifier.scopusauthoridLiu, J=7410108617en_US
dc.identifier.scopusauthoridGu, JD=7403129601en_US

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