Enhanced Sensitivity and Selectivity of Chemosensor for Malonate by Anchoring on Gold Nanoparticles

A novel organic-inorganic nanohybrided receptor 4 functionalized with bis-thiourea arms and then assembled on gold nanoparticles was synthesized. The preorganized system possesses phenylthiourea units for the spectropho- tometric sensing of dicarboxylates, especially malonate, based on changes in th...

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Veröffentlicht in:	Chinese journal of chemistry 2011-03, Vol.29 (3), p.531-538
1. Verfasser:	Liu, Yanyun Liu, Yun Liang, Zhongshi Li, Xiangyang Liu, Shunying Yu, Jiahui
Format:	Artikel
Sprache:	eng
Schlagworte:	assembly Gold gold nanoparticle manolate Nanoparticles sensor thiourea 分光光度计化学敏感器国民生产总值离子选择性纳米金表面等离子金纳米粒子高灵敏度
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container_title	Chinese journal of chemistry
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creator	Liu, Yanyun Liu, Yun Liang, Zhongshi Li, Xiangyang Liu, Shunying Yu, Jiahui
description	A novel organic-inorganic nanohybrided receptor 4 functionalized with bis-thiourea arms and then assembled on gold nanoparticles was synthesized. The preorganized system possesses phenylthiourea units for the spectropho- tometric sensing of dicarboxylates, especially malonate, based on changes in the surface plasmon absorption of the gold nanoparticles （GNPs）. The intensity of the absorbance band increases gradually with the concentration of di- carboxylates increasing. But such an ion-selective change in the plasmon band was not observed in control tests carried out by mono-thiourea-modified GNPs, receptor 3 and the free receptor 2. As it is shown from the association constants, derived from quantitative titrations, receptor 4 can selectively recognize dicarboxylate anions of shorter carbon chain, and has the highest affinity to malonate. The interaction properties for anions of receptor 4 were evaluated by lH NMR and UV-vis spectroscopic methods.
doi_str_mv	10.1002/cjoc.201190118
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The preorganized system possesses phenylthiourea units for the spectropho- tometric sensing of dicarboxylates, especially malonate, based on changes in the surface plasmon absorption of the gold nanoparticles （GNPs）. The intensity of the absorbance band increases gradually with the concentration of di- carboxylates increasing. But such an ion-selective change in the plasmon band was not observed in control tests carried out by mono-thiourea-modified GNPs, receptor 3 and the free receptor 2. As it is shown from the association constants, derived from quantitative titrations, receptor 4 can selectively recognize dicarboxylate anions of shorter carbon chain, and has the highest affinity to malonate. The interaction properties for anions of receptor 4 were evaluated by lH NMR and UV-vis spectroscopic methods.</description><identifier>ISSN: 1001-604X</identifier><identifier>EISSN: 1614-7065</identifier><identifier>DOI: 10.1002/cjoc.201190118</identifier><language>eng</language><publisher>Weinheim: WILEY-VCH Verlag</publisher><subject>assembly ; Gold ; gold nanoparticle ; manolate ; Nanoparticles ; sensor ; thiourea ; 分光光度计 ; 化学敏感器 ; 国民生产总值 ; 离子选择性 ; 纳米金 ; 表面等离子 ; 金纳米粒子 ; 高灵敏度</subject><ispartof>Chinese journal of chemistry, 2011-03, Vol.29 (3), p.531-538</ispartof><rights>Copyright © 2011 SIOC, CAS, Shanghai & WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>Copyright © 2011 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. 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The preorganized system possesses phenylthiourea units for the spectropho- tometric sensing of dicarboxylates, especially malonate, based on changes in the surface plasmon absorption of the gold nanoparticles （GNPs）. The intensity of the absorbance band increases gradually with the concentration of di- carboxylates increasing. But such an ion-selective change in the plasmon band was not observed in control tests carried out by mono-thiourea-modified GNPs, receptor 3 and the free receptor 2. As it is shown from the association constants, derived from quantitative titrations, receptor 4 can selectively recognize dicarboxylate anions of shorter carbon chain, and has the highest affinity to malonate. The interaction properties for anions of receptor 4 were evaluated by lH NMR and UV-vis spectroscopic methods.</description><subject>assembly</subject><subject>Gold</subject><subject>gold nanoparticle</subject><subject>manolate</subject><subject>Nanoparticles</subject><subject>sensor</subject><subject>thiourea</subject><subject>分光光度计</subject><subject>化学敏感器</subject><subject>国民生产总值</subject><subject>离子选择性</subject><subject>纳米金</subject><subject>表面等离子</subject><subject>金纳米粒子</subject><subject>高灵敏度</subject><issn>1001-604X</issn><issn>1614-7065</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkElPwzAQRiMEEuuVswXnlLGd2MkRIlpA0ArKdrNcx6YpwS52WPrvcdUKceMw8oz03oz1Jckhhh4GICdq5lSPAMZlrGIj2cEMZykHlm_GHgCnDLLn7WQ3hFnkOSdsJ1Hndiqt0jUaaxuarvlsugWSdjm3Wq1nZ1A11W8uRMZ5ZGLdyNZZ2Wk0WaBTq6bON_YFOYsGrq3RUFo3l75rVKvDfrJlZBv0wfrdSx765_fVRXo9GlxWp9epogUpUoahJKYsdIENJ4YxOqk5q_OSAoWakZxhqjJV1pKojBltjKJ5jrMJrTNQvKZ7yfFq79y79w8dOjFzH97GkwJzxgogUECkeitKeReC10bMffMm_UJgEMsgxTJI8RtkFMqV8NW0evEPLaqrUfXXTVduEzr9_etK_yoYpzwXT8OB6I8ZvRue3YrHyB-tPzd19uU9RiomUr2aeFlQTiEHUtIf5GOSIA</recordid><startdate>201103</startdate><enddate>201103</enddate><creator>Liu, Yanyun Liu, Yun Liang, Zhongshi Li, Xiangyang Liu, Shunying Yu, Jiahui</creator><general>WILEY-VCH Verlag</general><general>WILEY‐VCH Verlag</general><general>Wiley Subscription Services, Inc</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>201103</creationdate><title>Enhanced Sensitivity and Selectivity of Chemosensor for Malonate by Anchoring on Gold Nanoparticles</title><author>Liu, Yanyun Liu, Yun Liang, Zhongshi Li, Xiangyang Liu, Shunying Yu, Jiahui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3828-61092f98e81f72f663bd76d593030d625613c4c9da2c46feffc35514b3d40c7d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>assembly</topic><topic>Gold</topic><topic>gold nanoparticle</topic><topic>manolate</topic><topic>Nanoparticles</topic><topic>sensor</topic><topic>thiourea</topic><topic>分光光度计</topic><topic>化学敏感器</topic><topic>国民生产总值</topic><topic>离子选择性</topic><topic>纳米金</topic><topic>表面等离子</topic><topic>金纳米粒子</topic><topic>高灵敏度</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Yanyun Liu, Yun Liang, Zhongshi Li, Xiangyang Liu, Shunying Yu, Jiahui</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>Istex</collection><collection>CrossRef</collection><jtitle>Chinese journal of chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Yanyun Liu, Yun Liang, Zhongshi Li, Xiangyang Liu, Shunying Yu, Jiahui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced Sensitivity and Selectivity of Chemosensor for Malonate by Anchoring on Gold Nanoparticles</atitle><jtitle>Chinese journal of chemistry</jtitle><addtitle>Chinese Journal of Chemistry</addtitle><date>2011-03</date><risdate>2011</risdate><volume>29</volume><issue>3</issue><spage>531</spage><epage>538</epage><pages>531-538</pages><issn>1001-604X</issn><eissn>1614-7065</eissn><abstract>A novel organic-inorganic nanohybrided receptor 4 functionalized with bis-thiourea arms and then assembled on gold nanoparticles was synthesized. The preorganized system possesses phenylthiourea units for the spectropho- tometric sensing of dicarboxylates, especially malonate, based on changes in the surface plasmon absorption of the gold nanoparticles （GNPs）. The intensity of the absorbance band increases gradually with the concentration of di- carboxylates increasing. But such an ion-selective change in the plasmon band was not observed in control tests carried out by mono-thiourea-modified GNPs, receptor 3 and the free receptor 2. As it is shown from the association constants, derived from quantitative titrations, receptor 4 can selectively recognize dicarboxylate anions of shorter carbon chain, and has the highest affinity to malonate. The interaction properties for anions of receptor 4 were evaluated by lH NMR and UV-vis spectroscopic methods.</abstract><cop>Weinheim</cop><pub>WILEY-VCH Verlag</pub><doi>10.1002/cjoc.201190118</doi><tpages>8</tpages></addata></record>
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subjects	assembly Gold gold nanoparticle manolate Nanoparticles sensor thiourea 分光光度计化学敏感器国民生产总值离子选择性纳米金表面等离子金纳米粒子高灵敏度
title	Enhanced Sensitivity and Selectivity of Chemosensor for Malonate by Anchoring on Gold Nanoparticles
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