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dc.contributor.authorCheng, Chiehen_US
dc.contributor.authorChen, Hsueh-Yangen_US
dc.contributor.authorWu, Chung-Shuen_US
dc.contributor.authorMeen, Jagan Singhen_US
dc.contributor.authorSimon, Turibiusen_US
dc.contributor.authorKo, Fu-Hsiangen_US
dc.date.accessioned2017-04-21T06:55:49Z-
dc.date.available2017-04-21T06:55:49Z-
dc.date.issued2016-05en_US
dc.identifier.issn0925-4005en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.snb.2015.12.057en_US
dc.identifier.urihttp://hdl.handle.net/11536/133913-
dc.description.abstractIn this study, a simple analytical system is presented for the detection of cyanide with a wide concentration range, which is respectively based on the fluorescent and colorimetric properties of gold nanoparticles. This dual-functional system can work directly for aqueous medium and expand efficiently a wide detection range over three orders of magnitudes for cyanide determination. By using the fluorescence method, the lowest concentration for quantification of cyanide ions is 1.0 x 10(-7) M, and the sensitivity is good enough for the determination of cyanide in drinking water. To recognize higher concentration of cyanide for industrial sewage monitoring, the colorimetric behavior can be used as an alternating tool for field tests from naked eye. The system also provides an excellent selectivity toward cyanide over other common interfering anions and metal ions, thus enabling the ability to monitor cyanide contamination in environmental samples. Furthermore, several real water samples spiked with cyanide, including local tap water, drinking water, lake water, and sea water, were analyzed, and the experimental results demonstrated that this sensing system exhibited excellent recoveries for these practical water samples. Our attempt may provide a cost-effective, rapid and simple solution for the recognition and determination of different levels of cyanide contamination in aqueous samples. (C) 2015 Elsevier B.V. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectGolden_US
dc.subjectNanoparticlesen_US
dc.subjectCyanideen_US
dc.subjectSensoren_US
dc.subjectWide-range detectionen_US
dc.titleA highly sensitive and selective cyanide detection using a gold nanoparticle-based dual fluorescence-colorimetric sensor with a wide concentration rangeen_US
dc.identifier.doi10.1016/j.snb.2015.12.057en_US
dc.identifier.journalSENSORS AND ACTUATORS B-CHEMICALen_US
dc.citation.volume227en_US
dc.citation.spage283en_US
dc.citation.epage290en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.department電機學院zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.contributor.departmentCollege of Electrical and Computer Engineeringen_US
dc.identifier.wosnumberWOS:000369944200037en_US
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