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Rapid Colorimetric Detection of Cartap Residues by AgNP Sensor with Magnetic Molecularly Imprinted Microspheres as Recognition Elements
The overuse of cartap in tea tree leads to hazardous residues threatening human health. A colorimetric determination was established to detect cartap residues in tea beverages by silver nanoparticles (AgNP) sensor with magnetic molecularly imprinted polymeric microspheres (Fe₃O₄@mSiO₂@MIPs) as recog...
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Published in: | Molecules (Basel, Switzerland) Switzerland), 2018-06, Vol.23 (6), p.1443 |
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description | The overuse of cartap in tea tree leads to hazardous residues threatening human health. A colorimetric determination was established to detect cartap residues in tea beverages by silver nanoparticles (AgNP) sensor with magnetic molecularly imprinted polymeric microspheres (Fe₃O₄@mSiO₂@MIPs) as recognition elements. Using Fe₃O₄ as supporting core, mesoporous SiO₂ as intermediate shell, methylacrylic acid as functional monomer, and cartap as template, Fe₃O₄@mSiO₂@MIPs were prepared to selectively and magnetically separate cartap from tea solution before colorimetric determination by AgNP sensors. The core-shell Fe₃O₄@mSiO₂@MIPs were also characterized by FT-IR, TEM, VSM, and experimental adsorption. The Fe₃O₄@mSiO₂@MIPs could be rapidly separated by an external magnet in 10 s with good reusability (maintained 95.2% through 10 cycles). The adsorption process of cartap on Fe₃O₄@mSiO₂@MIPs conformed to Langmuir adsorption isotherm with maximum adsorption capacity at 0.257 mmol/g and short equilibrium time of 30 min at 298 K. The AgNP colorimetric method semi-quantified cartap ≥5 mg/L by naked eye and quantified cartap 0.1⁻5 mg/L with LOD 0.01 mg/L by UV-vis spectroscopy. The AgNP colorimetric detection after pretreatment with Fe₃O₄@mSiO₂@MIPs could be successfully utilized to recognize and detect cartap residues in tea beverages. |
doi_str_mv | 10.3390/molecules23061443 |
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A colorimetric determination was established to detect cartap residues in tea beverages by silver nanoparticles (AgNP) sensor with magnetic molecularly imprinted polymeric microspheres (Fe₃O₄@mSiO₂@MIPs) as recognition elements. Using Fe₃O₄ as supporting core, mesoporous SiO₂ as intermediate shell, methylacrylic acid as functional monomer, and cartap as template, Fe₃O₄@mSiO₂@MIPs were prepared to selectively and magnetically separate cartap from tea solution before colorimetric determination by AgNP sensors. The core-shell Fe₃O₄@mSiO₂@MIPs were also characterized by FT-IR, TEM, VSM, and experimental adsorption. The Fe₃O₄@mSiO₂@MIPs could be rapidly separated by an external magnet in 10 s with good reusability (maintained 95.2% through 10 cycles). The adsorption process of cartap on Fe₃O₄@mSiO₂@MIPs conformed to Langmuir adsorption isotherm with maximum adsorption capacity at 0.257 mmol/g and short equilibrium time of 30 min at 298 K. The AgNP colorimetric method semi-quantified cartap ≥5 mg/L by naked eye and quantified cartap 0.1⁻5 mg/L with LOD 0.01 mg/L by UV-vis spectroscopy. The AgNP colorimetric detection after pretreatment with Fe₃O₄@mSiO₂@MIPs could be successfully utilized to recognize and detect cartap residues in tea beverages.</description><identifier>ISSN: 1420-3049</identifier><identifier>EISSN: 1420-3049</identifier><identifier>DOI: 10.3390/molecules23061443</identifier><identifier>PMID: 29899218</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Adsorption ; Beverages ; Cartap ; cartap residue ; colorimetric determination ; Colorimetry ; Ferrosoferric Oxide - chemistry ; Health risks ; Iron oxides ; Metal Nanoparticles ; Microspheres ; Molecular imprinting ; Molecular Imprinting - methods ; Molecular Structure ; molecularly imprinted microsphere ; Nanoparticles ; Pretreatment ; Recognition ; Residues ; selective recognition ; Silicon dioxide ; Silicon Dioxide - chemistry ; Silver ; Silver - chemistry ; silver nanoparticle sensor ; Spectroscopy ; Tea - chemistry ; tea beverage ; Thiocarbamates - adverse effects ; Thiocarbamates - analysis</subject><ispartof>Molecules (Basel, Switzerland), 2018-06, Vol.23 (6), p.1443</ispartof><rights>2018. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2018 by the authors. 2018</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c493t-e64ef42a13a86619637ea8a966d41d183a38fd1a011988b58b27741a8e010473</citedby><cites>FETCH-LOGICAL-c493t-e64ef42a13a86619637ea8a966d41d183a38fd1a011988b58b27741a8e010473</cites><orcidid>0000-0002-9387-4123</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2108560651/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2108560651?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25753,27924,27925,37012,37013,44590,53791,53793,75126</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29899218$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Mao</creatorcontrib><creatorcontrib>Deng, Huiyun</creatorcontrib><creatorcontrib>Fan, Yajun</creatorcontrib><creatorcontrib>Hu, Yunchu</creatorcontrib><creatorcontrib>Guo, Yaping</creatorcontrib><creatorcontrib>Xie, Lianwu</creatorcontrib><title>Rapid Colorimetric Detection of Cartap Residues by AgNP Sensor with Magnetic Molecularly Imprinted Microspheres as Recognition Elements</title><title>Molecules (Basel, Switzerland)</title><addtitle>Molecules</addtitle><description>The overuse of cartap in tea tree leads to hazardous residues threatening human health. A colorimetric determination was established to detect cartap residues in tea beverages by silver nanoparticles (AgNP) sensor with magnetic molecularly imprinted polymeric microspheres (Fe₃O₄@mSiO₂@MIPs) as recognition elements. Using Fe₃O₄ as supporting core, mesoporous SiO₂ as intermediate shell, methylacrylic acid as functional monomer, and cartap as template, Fe₃O₄@mSiO₂@MIPs were prepared to selectively and magnetically separate cartap from tea solution before colorimetric determination by AgNP sensors. The core-shell Fe₃O₄@mSiO₂@MIPs were also characterized by FT-IR, TEM, VSM, and experimental adsorption. The Fe₃O₄@mSiO₂@MIPs could be rapidly separated by an external magnet in 10 s with good reusability (maintained 95.2% through 10 cycles). The adsorption process of cartap on Fe₃O₄@mSiO₂@MIPs conformed to Langmuir adsorption isotherm with maximum adsorption capacity at 0.257 mmol/g and short equilibrium time of 30 min at 298 K. The AgNP colorimetric method semi-quantified cartap ≥5 mg/L by naked eye and quantified cartap 0.1⁻5 mg/L with LOD 0.01 mg/L by UV-vis spectroscopy. The AgNP colorimetric detection after pretreatment with Fe₃O₄@mSiO₂@MIPs could be successfully utilized to recognize and detect cartap residues in tea beverages.</description><subject>Adsorption</subject><subject>Beverages</subject><subject>Cartap</subject><subject>cartap residue</subject><subject>colorimetric determination</subject><subject>Colorimetry</subject><subject>Ferrosoferric Oxide - chemistry</subject><subject>Health risks</subject><subject>Iron oxides</subject><subject>Metal Nanoparticles</subject><subject>Microspheres</subject><subject>Molecular imprinting</subject><subject>Molecular Imprinting - methods</subject><subject>Molecular Structure</subject><subject>molecularly imprinted microsphere</subject><subject>Nanoparticles</subject><subject>Pretreatment</subject><subject>Recognition</subject><subject>Residues</subject><subject>selective recognition</subject><subject>Silicon dioxide</subject><subject>Silicon Dioxide - chemistry</subject><subject>Silver</subject><subject>Silver - chemistry</subject><subject>silver nanoparticle sensor</subject><subject>Spectroscopy</subject><subject>Tea - chemistry</subject><subject>tea beverage</subject><subject>Thiocarbamates - adverse effects</subject><subject>Thiocarbamates - analysis</subject><issn>1420-3049</issn><issn>1420-3049</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNplks1u1DAUhSMEoqXwAGyQJTZsBvwXx94gVUOBkTqASveWE99kPHLiwXZA8wS8Np5OqVpY2bLP-e69R7eqXhL8ljGF343BQzd7SJRhQThnj6pTwileMMzV43v3k-pZSluMKeGkflqdUCWVokSeVr-vzM5ZtAw-RDdCjq5DHyBDl12YUOjR0sRsdugKkrMzJNTu0fnw5Rv6DlMKEf1yeYPWZpggF-f62JCJfo9W4y66KYNFa9fFkHYbiMVvUmF1YZjcTYULDyNMOT2vnvTGJ3hxe55V1x8vrpefF5dfP62W55eLjiuWFyA49JwawowUgijBGjDSKCEsJ5ZIZpjsLTGYECVlW8uWNg0nRgImmDfsrFodsTaYrS4NjibudTBO3zyEOOgyr-s86BIbF6ztLFOc91K1wtJa4d4q6FkrD6z3R9ZubkewXRkjGv8A-vBnchs9hJ9aYKUk4wXw5hYQw4-SbdajSx14byYIc9IU17UgjVR1kb7-R7oNc5xKUpoSLGuBRU2KihxVh7xThP6uGYL1YWP0fxtTPK_uT3Hn-Lsi7A_kysAL</recordid><startdate>20180614</startdate><enddate>20180614</enddate><creator>Wu, Mao</creator><creator>Deng, Huiyun</creator><creator>Fan, Yajun</creator><creator>Hu, Yunchu</creator><creator>Guo, Yaping</creator><creator>Xie, Lianwu</creator><general>MDPI AG</general><general>MDPI</general><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>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9.</scope><scope>M0S</scope><scope>M1P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-9387-4123</orcidid></search><sort><creationdate>20180614</creationdate><title>Rapid Colorimetric Detection of Cartap Residues by AgNP Sensor with Magnetic Molecularly Imprinted Microspheres as Recognition Elements</title><author>Wu, Mao ; Deng, Huiyun ; Fan, Yajun ; Hu, Yunchu ; Guo, Yaping ; Xie, Lianwu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c493t-e64ef42a13a86619637ea8a966d41d183a38fd1a011988b58b27741a8e010473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Adsorption</topic><topic>Beverages</topic><topic>Cartap</topic><topic>cartap residue</topic><topic>colorimetric determination</topic><topic>Colorimetry</topic><topic>Ferrosoferric Oxide - chemistry</topic><topic>Health risks</topic><topic>Iron oxides</topic><topic>Metal Nanoparticles</topic><topic>Microspheres</topic><topic>Molecular imprinting</topic><topic>Molecular Imprinting - methods</topic><topic>Molecular Structure</topic><topic>molecularly imprinted microsphere</topic><topic>Nanoparticles</topic><topic>Pretreatment</topic><topic>Recognition</topic><topic>Residues</topic><topic>selective recognition</topic><topic>Silicon dioxide</topic><topic>Silicon Dioxide - chemistry</topic><topic>Silver</topic><topic>Silver - chemistry</topic><topic>silver nanoparticle sensor</topic><topic>Spectroscopy</topic><topic>Tea - chemistry</topic><topic>tea beverage</topic><topic>Thiocarbamates - adverse effects</topic><topic>Thiocarbamates - analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Mao</creatorcontrib><creatorcontrib>Deng, Huiyun</creatorcontrib><creatorcontrib>Fan, Yajun</creatorcontrib><creatorcontrib>Hu, Yunchu</creatorcontrib><creatorcontrib>Guo, Yaping</creatorcontrib><creatorcontrib>Xie, Lianwu</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>Directory of Open Access Journals</collection><jtitle>Molecules (Basel, Switzerland)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Mao</au><au>Deng, Huiyun</au><au>Fan, Yajun</au><au>Hu, Yunchu</au><au>Guo, Yaping</au><au>Xie, Lianwu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rapid Colorimetric Detection of Cartap Residues by AgNP Sensor with Magnetic Molecularly Imprinted Microspheres as Recognition Elements</atitle><jtitle>Molecules (Basel, Switzerland)</jtitle><addtitle>Molecules</addtitle><date>2018-06-14</date><risdate>2018</risdate><volume>23</volume><issue>6</issue><spage>1443</spage><pages>1443-</pages><issn>1420-3049</issn><eissn>1420-3049</eissn><abstract>The overuse of cartap in tea tree leads to hazardous residues threatening human health. A colorimetric determination was established to detect cartap residues in tea beverages by silver nanoparticles (AgNP) sensor with magnetic molecularly imprinted polymeric microspheres (Fe₃O₄@mSiO₂@MIPs) as recognition elements. Using Fe₃O₄ as supporting core, mesoporous SiO₂ as intermediate shell, methylacrylic acid as functional monomer, and cartap as template, Fe₃O₄@mSiO₂@MIPs were prepared to selectively and magnetically separate cartap from tea solution before colorimetric determination by AgNP sensors. The core-shell Fe₃O₄@mSiO₂@MIPs were also characterized by FT-IR, TEM, VSM, and experimental adsorption. The Fe₃O₄@mSiO₂@MIPs could be rapidly separated by an external magnet in 10 s with good reusability (maintained 95.2% through 10 cycles). The adsorption process of cartap on Fe₃O₄@mSiO₂@MIPs conformed to Langmuir adsorption isotherm with maximum adsorption capacity at 0.257 mmol/g and short equilibrium time of 30 min at 298 K. The AgNP colorimetric method semi-quantified cartap ≥5 mg/L by naked eye and quantified cartap 0.1⁻5 mg/L with LOD 0.01 mg/L by UV-vis spectroscopy. The AgNP colorimetric detection after pretreatment with Fe₃O₄@mSiO₂@MIPs could be successfully utilized to recognize and detect cartap residues in tea beverages.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>29899218</pmid><doi>10.3390/molecules23061443</doi><orcidid>https://orcid.org/0000-0002-9387-4123</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Adsorption Beverages Cartap cartap residue colorimetric determination Colorimetry Ferrosoferric Oxide - chemistry Health risks Iron oxides Metal Nanoparticles Microspheres Molecular imprinting Molecular Imprinting - methods Molecular Structure molecularly imprinted microsphere Nanoparticles Pretreatment Recognition Residues selective recognition Silicon dioxide Silicon Dioxide - chemistry Silver Silver - chemistry silver nanoparticle sensor Spectroscopy Tea - chemistry tea beverage Thiocarbamates - adverse effects Thiocarbamates - analysis |
title | Rapid Colorimetric Detection of Cartap Residues by AgNP Sensor with Magnetic Molecularly Imprinted Microspheres as Recognition Elements |
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