A chemical switch for detecting insect infestation
BACKGROUND: Plants emit phytochemicals as a defensive mechanism against herbivores. A small sensor switch that responds to these chemicals could be used to stop insect infestation at early stages. RESULTS: Polyethylene‐co‐vinyl acetate was chosen as the best polymer for this particular application,...
Gespeichert in:
| Veröffentlicht in: | Pest management science 2012-06, Vol.68 (6), p.906-913 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 913 |
|---|---|
| container_issue | 6 |
| container_start_page | 906 |
| container_title | Pest management science |
| container_volume | 68 |
| creator | Weerakoon, Kanchana A Chin, Bryan A |
| description | BACKGROUND: Plants emit phytochemicals as a defensive mechanism against herbivores. A small sensor switch that responds to these chemicals could be used to stop insect infestation at early stages.
RESULTS: Polyethylene‐co‐vinyl acetate was chosen as the best polymer for this particular application, based on its swelling response to plant volatiles. When the carbon concentration of the active layer was low enough to be near the percolation threshold, the sensor could be used as a ‘chemical switch’. The resistance of the sensor increased significantly, mimicking a ‘switch‐off’ response when exposed to the analyte vapor. When the analyte vapor was no longer present, the sensor returned back to its original condition, showing a ‘switch‐on’ response. The percolation point was obtained when the carbon concentration of the polymer/carbon composite was kept at 2.5 wt%.
CONCLUSION: A low‐mass‐fraction carbon composite sensor has been designed and fabricated to detect γ‐terpinene, α‐pinene, p‐cymene, farnesene, limonene and cis‐hexenyl acetate. The sensor is inexpensive, easy to fabricate and highly stable in air. Copyright © 2011 Society of Chemical Industry |
| doi_str_mv | 10.1002/ps.3249 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1012748969</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2660321611</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4139-9f87fce3b96a30d7a284b531de817b88c5627f36950ac8fe367e9963ca3833d23</originalsourceid><addsrcrecordid>eNp10NtKAzEQBuAgiocqvoEsiCjIajazm8OliEeKZ1G8CWk20eh2tyZbqm9vamsFwauZi4_5hx-h9QzvZRiT_UHYA5KLObScFYSmuRB8frbzxyW0EsIrxlgIQRbREiGEkgLIMiIHiX4xfadVlYSRa_VLYhuflKY1unX1c-LqELc4rAmtal1Tr6IFq6pg1qazg-6Pj-4OT9Pu5cnZ4UE31XkGIhWWM6sN9ARVgEumCM97BWSl4Rnrca4LSpgFKgqsNLcGKDNCUNAKOEBJoIN2JncHvnkfxnTZd0GbqlK1aYZBZjgjLOeCikg3_9DXZujr-N1YQZ4D_1bbE6V9E4I3Vg686yv_GZEc1ygHQY5rjHJjem_Y65ty5n56i2BrClSI1Vmvau3Crys4YxTT6HYnbuQq8_lfnry6ncamE-1Caz5mWvk3SRmwQj5cnMgHuDntPl3n8hy-ADWwlDo</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1013443869</pqid></control><display><type>article</type><title>A chemical switch for detecting insect infestation</title><source>MEDLINE</source><source>Wiley Online Library All Journals</source><creator>Weerakoon, Kanchana A ; Chin, Bryan A</creator><creatorcontrib>Weerakoon, Kanchana A ; Chin, Bryan A</creatorcontrib><description>BACKGROUND: Plants emit phytochemicals as a defensive mechanism against herbivores. A small sensor switch that responds to these chemicals could be used to stop insect infestation at early stages.
RESULTS: Polyethylene‐co‐vinyl acetate was chosen as the best polymer for this particular application, based on its swelling response to plant volatiles. When the carbon concentration of the active layer was low enough to be near the percolation threshold, the sensor could be used as a ‘chemical switch’. The resistance of the sensor increased significantly, mimicking a ‘switch‐off’ response when exposed to the analyte vapor. When the analyte vapor was no longer present, the sensor returned back to its original condition, showing a ‘switch‐on’ response. The percolation point was obtained when the carbon concentration of the polymer/carbon composite was kept at 2.5 wt%.
CONCLUSION: A low‐mass‐fraction carbon composite sensor has been designed and fabricated to detect γ‐terpinene, α‐pinene, p‐cymene, farnesene, limonene and cis‐hexenyl acetate. The sensor is inexpensive, easy to fabricate and highly stable in air. Copyright © 2011 Society of Chemical Industry</description><identifier>ISSN: 1526-498X</identifier><identifier>EISSN: 1526-4998</identifier><identifier>DOI: 10.1002/ps.3249</identifier><identifier>PMID: 22262532</identifier><identifier>CODEN: PMSCFC</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Animals ; Biological and medical sciences ; Carbon - chemistry ; carbon/polyethylene-co-vinyl acetate sensor ; Chemistry Techniques, Analytical - instrumentation ; Electric Impedance ; Flowers & plants ; Fundamental and applied biological sciences. Psychology ; Herbivores ; Herbivory - physiology ; insect infestation ; Insecta - physiology ; Insects ; Microtechnology ; Phytochemicals ; plant volatiles ; Plants - chemistry ; Plants - immunology ; Polymers ; Polyvinyls - chemistry ; volatile organic compounds ; Volatile Organic Compounds - analysis ; γ-terpinene</subject><ispartof>Pest management science, 2012-06, Vol.68 (6), p.906-913</ispartof><rights>Copyright © 2011 Society of Chemical Industry</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 Society of Chemical Industry.</rights><rights>Copyright John Wiley and Sons, Limited Jun 2012</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4139-9f87fce3b96a30d7a284b531de817b88c5627f36950ac8fe367e9963ca3833d23</citedby><cites>FETCH-LOGICAL-c4139-9f87fce3b96a30d7a284b531de817b88c5627f36950ac8fe367e9963ca3833d23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fps.3249$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fps.3249$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25877606$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22262532$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Weerakoon, Kanchana A</creatorcontrib><creatorcontrib>Chin, Bryan A</creatorcontrib><title>A chemical switch for detecting insect infestation</title><title>Pest management science</title><addtitle>Pest. Manag. Sci</addtitle><description>BACKGROUND: Plants emit phytochemicals as a defensive mechanism against herbivores. A small sensor switch that responds to these chemicals could be used to stop insect infestation at early stages.
RESULTS: Polyethylene‐co‐vinyl acetate was chosen as the best polymer for this particular application, based on its swelling response to plant volatiles. When the carbon concentration of the active layer was low enough to be near the percolation threshold, the sensor could be used as a ‘chemical switch’. The resistance of the sensor increased significantly, mimicking a ‘switch‐off’ response when exposed to the analyte vapor. When the analyte vapor was no longer present, the sensor returned back to its original condition, showing a ‘switch‐on’ response. The percolation point was obtained when the carbon concentration of the polymer/carbon composite was kept at 2.5 wt%.
CONCLUSION: A low‐mass‐fraction carbon composite sensor has been designed and fabricated to detect γ‐terpinene, α‐pinene, p‐cymene, farnesene, limonene and cis‐hexenyl acetate. The sensor is inexpensive, easy to fabricate and highly stable in air. Copyright © 2011 Society of Chemical Industry</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Carbon - chemistry</subject><subject>carbon/polyethylene-co-vinyl acetate sensor</subject><subject>Chemistry Techniques, Analytical - instrumentation</subject><subject>Electric Impedance</subject><subject>Flowers & plants</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Herbivores</subject><subject>Herbivory - physiology</subject><subject>insect infestation</subject><subject>Insecta - physiology</subject><subject>Insects</subject><subject>Microtechnology</subject><subject>Phytochemicals</subject><subject>plant volatiles</subject><subject>Plants - chemistry</subject><subject>Plants - immunology</subject><subject>Polymers</subject><subject>Polyvinyls - chemistry</subject><subject>volatile organic compounds</subject><subject>Volatile Organic Compounds - analysis</subject><subject>γ-terpinene</subject><issn>1526-498X</issn><issn>1526-4998</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp10NtKAzEQBuAgiocqvoEsiCjIajazm8OliEeKZ1G8CWk20eh2tyZbqm9vamsFwauZi4_5hx-h9QzvZRiT_UHYA5KLObScFYSmuRB8frbzxyW0EsIrxlgIQRbREiGEkgLIMiIHiX4xfadVlYSRa_VLYhuflKY1unX1c-LqELc4rAmtal1Tr6IFq6pg1qazg-6Pj-4OT9Pu5cnZ4UE31XkGIhWWM6sN9ARVgEumCM97BWSl4Rnrca4LSpgFKgqsNLcGKDNCUNAKOEBJoIN2JncHvnkfxnTZd0GbqlK1aYZBZjgjLOeCikg3_9DXZujr-N1YQZ4D_1bbE6V9E4I3Vg686yv_GZEc1ygHQY5rjHJjem_Y65ty5n56i2BrClSI1Vmvau3Crys4YxTT6HYnbuQq8_lfnry6ncamE-1Caz5mWvk3SRmwQj5cnMgHuDntPl3n8hy-ADWwlDo</recordid><startdate>201206</startdate><enddate>201206</enddate><creator>Weerakoon, Kanchana A</creator><creator>Chin, Bryan A</creator><general>John Wiley & Sons, Ltd</general><general>Wiley</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QR</scope><scope>7SS</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope></search><sort><creationdate>201206</creationdate><title>A chemical switch for detecting insect infestation</title><author>Weerakoon, Kanchana A ; Chin, Bryan A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4139-9f87fce3b96a30d7a284b531de817b88c5627f36950ac8fe367e9963ca3833d23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Carbon - chemistry</topic><topic>carbon/polyethylene-co-vinyl acetate sensor</topic><topic>Chemistry Techniques, Analytical - instrumentation</topic><topic>Electric Impedance</topic><topic>Flowers & plants</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Herbivores</topic><topic>Herbivory - physiology</topic><topic>insect infestation</topic><topic>Insecta - physiology</topic><topic>Insects</topic><topic>Microtechnology</topic><topic>Phytochemicals</topic><topic>plant volatiles</topic><topic>Plants - chemistry</topic><topic>Plants - immunology</topic><topic>Polymers</topic><topic>Polyvinyls - chemistry</topic><topic>volatile organic compounds</topic><topic>Volatile Organic Compounds - analysis</topic><topic>γ-terpinene</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Weerakoon, Kanchana A</creatorcontrib><creatorcontrib>Chin, Bryan A</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Chemoreception Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Pest management science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Weerakoon, Kanchana A</au><au>Chin, Bryan A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A chemical switch for detecting insect infestation</atitle><jtitle>Pest management science</jtitle><addtitle>Pest. Manag. Sci</addtitle><date>2012-06</date><risdate>2012</risdate><volume>68</volume><issue>6</issue><spage>906</spage><epage>913</epage><pages>906-913</pages><issn>1526-498X</issn><eissn>1526-4998</eissn><coden>PMSCFC</coden><abstract>BACKGROUND: Plants emit phytochemicals as a defensive mechanism against herbivores. A small sensor switch that responds to these chemicals could be used to stop insect infestation at early stages.
RESULTS: Polyethylene‐co‐vinyl acetate was chosen as the best polymer for this particular application, based on its swelling response to plant volatiles. When the carbon concentration of the active layer was low enough to be near the percolation threshold, the sensor could be used as a ‘chemical switch’. The resistance of the sensor increased significantly, mimicking a ‘switch‐off’ response when exposed to the analyte vapor. When the analyte vapor was no longer present, the sensor returned back to its original condition, showing a ‘switch‐on’ response. The percolation point was obtained when the carbon concentration of the polymer/carbon composite was kept at 2.5 wt%.
CONCLUSION: A low‐mass‐fraction carbon composite sensor has been designed and fabricated to detect γ‐terpinene, α‐pinene, p‐cymene, farnesene, limonene and cis‐hexenyl acetate. The sensor is inexpensive, easy to fabricate and highly stable in air. Copyright © 2011 Society of Chemical Industry</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><pmid>22262532</pmid><doi>10.1002/ps.3249</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1526-498X |
| ispartof | Pest management science, 2012-06, Vol.68 (6), p.906-913 |
| issn | 1526-498X 1526-4998 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1012748969 |
| source | MEDLINE; Wiley Online Library All Journals |
| subjects | Animals Biological and medical sciences Carbon - chemistry carbon/polyethylene-co-vinyl acetate sensor Chemistry Techniques, Analytical - instrumentation Electric Impedance Flowers & plants Fundamental and applied biological sciences. Psychology Herbivores Herbivory - physiology insect infestation Insecta - physiology Insects Microtechnology Phytochemicals plant volatiles Plants - chemistry Plants - immunology Polymers Polyvinyls - chemistry volatile organic compounds Volatile Organic Compounds - analysis γ-terpinene |
| title | A chemical switch for detecting insect infestation |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-08T00%3A26%3A28IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20chemical%20switch%20for%20detecting%20insect%20infestation&rft.jtitle=Pest%20management%20science&rft.au=Weerakoon,%20Kanchana%20A&rft.date=2012-06&rft.volume=68&rft.issue=6&rft.spage=906&rft.epage=913&rft.pages=906-913&rft.issn=1526-498X&rft.eissn=1526-4998&rft.coden=PMSCFC&rft_id=info:doi/10.1002/ps.3249&rft_dat=%3Cproquest_cross%3E2660321611%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1013443869&rft_id=info:pmid/22262532&rfr_iscdi=true |