Dergi makalesi Açık Erişim
Rajar, Kausar; Sirajuddin; Balouch, Aamna; Bhanger, M. I.; Shah, Muhammad Tariq; Shaikh, Tayyaba; Siddiqui, Samia
<?xml version='1.0' encoding='UTF-8'?> <record xmlns="http://www.loc.gov/MARC21/slim"> <leader>00000nam##2200000uu#4500</leader> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Succinic acid functionalized silver nanoparticles (Suc-Ag NPs) for colorimetric sensing of melamine</subfield> </datafield> <datafield tag="909" ind1="C" ind2="4"> <subfield code="p">APPLIED SURFACE SCIENCE</subfield> <subfield code="v">435</subfield> <subfield code="c">1080-1086</subfield> </datafield> <controlfield tag="001">110480</controlfield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-tubitak-destekli-proje-yayinlari</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a">In this study, a quantitative colorimetric sensing strategy is developed for the rapid, sensitive and selective determination of melamine. The sensing system relies on the application of succinic acid as a selective recognition probe functionalized over Ag NPs. The synthesized Ag NPs were modified with cysteamine to induce positively charged atmosphere which allowed easy and favorable functionalization of succinic acid. The di-carboxyl nature of succinic acid enabled its binding to both cysteamine and melamine. The strong and favorable linkage between succinic acids carbonyl and amine moieties of melamine triggered aggregation of silver NPs producing a significant shift in the measured absorption excitation. This change in the excitation along with the colorimetric response was found linearly proportional to the melamine concentration in the range of 0.1-1.2 mu M. The developed sensor system is simple and unlike electrostatic attraction based sensor system utilize selective linkage for the recognition of melamine. In addition to this, the developed optical probe can efficiently be used for the determination of melamine in milk samples. (c) 2017 Elsevier B.V. All rights reserved.</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="2">opendefinition.org</subfield> <subfield code="a">cc-by</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Univ Sindh, Natl Ctr Excellence Analyt Chem, Jamshoro 76080, Pakistan</subfield> <subfield code="a">Sirajuddin</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Univ Sindh, Natl Ctr Excellence Analyt Chem, Jamshoro 76080, Pakistan</subfield> <subfield code="a">Balouch, Aamna</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Univ Karachi, Int Ctr Chem & Biol Sci, Karachi, Pakistan</subfield> <subfield code="a">Bhanger, M. I.</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Univ Sindh, Natl Ctr Excellence Analyt Chem, Jamshoro 76080, Pakistan</subfield> <subfield code="a">Shah, Muhammad Tariq</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Univ Sindh, Natl Ctr Excellence Analyt Chem, Jamshoro 76080, Pakistan</subfield> <subfield code="a">Shaikh, Tayyaba</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Univ Sindh, Natl Ctr Excellence Analyt Chem, Jamshoro 76080, Pakistan</subfield> <subfield code="a">Siddiqui, Samia</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="b">article</subfield> <subfield code="a">publication</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="a">Rajar, Kausar</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2018-01-01</subfield> </datafield> <controlfield tag="005">20210420140820.0</controlfield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="o">oai:zenodo.org:110480</subfield> <subfield code="p">user-tubitak-destekli-proje-yayinlari</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="z">md5:d1f5225d5fc316f7acf90c8b823ba51f</subfield> <subfield code="s">240</subfield> <subfield code="u">https://aperta.ulakbim.gov.trrecord/110480/files/bib-f746b7eb-2bad-4bab-a860-99d33013606e.txt</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield> <subfield code="a">Creative Commons Attribution</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.1016/j.apsusc.2017.11.208</subfield> <subfield code="2">doi</subfield> </datafield> </record>
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