A Simple and Green Route for Room-Temperature Synthesis of Gold Nanoparticles and Selective Colorimetric Detection of Cysteine

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dc.authoridGunasekaran, Sundaram/0000-0001-6553-1273
dc.authoridOnsekizoglu Bagci, Pelin/0000-0001-6612-5170
dc.authorwosidGunasekaran, Sundaram/AAQ-2457-2021
dc.authorwosidWang, Yi-Cheng/ABI-3183-2020
dc.contributor.authorBagci, Pelin Onsekizoglu
dc.contributor.authorWang, Yi-Cheng
dc.contributor.authorGunasekaran, Sundaram
dc.date.accessioned2024-06-12T10:51:25Z
dc.date.available2024-06-12T10:51:25Z
dc.date.issued2015
dc.departmentTrakya Üniversitesien_US
dc.description.abstractGold nanoparticles (AuNPs) were synthesized at room temperature following a simple, rapid, and green route using fresh-squeezed apple juice as a reducing reagent. The optimal AuNPs, based on the particle color, stability, and color change suitable for colorimetric detection of cysteine (Cys), are synthesized using 5 mL of 10% apple juice, 1 mL of 10 mM gold precursor solution, and 1 mL of 0.1 M NaOH. Under this set of parameters, the AuNPs are synthesized within 30 min at room temperature. The average size (11.1 +/- 3.2 nm) and zeta potential (-36.5 mV) of the AuNPs synthesized were similar to those of AuNPs prepared via the conventional citrate-reduction method. In the presence of Cys, unlike with any other amino acid, the AuNPs aggregated, possibly due to the gold-sulfur covalent interaction, yielding red-to-purple color change of the sample solution. The red-shift of the localized surface plasmon resonance peak of the AuNPs responsible for the color change was recorded by UV-vis spectrometer. The effect of other potential interferents such as glucose, ascorbic acid, K+ , Na+ , Ca2+ , Zn2+ , Ag+ , Ni2+ , Cu2+ , Co2+ , and Hg2+ were also examined. The results show that AuNPs can be used to selectively detect and measure Cys with a linear dependency in the range of 2 to 100 mu M and a limit of detection (signal-to-noise ratio >3) of 50 nM. The results suggest that the green-synthesized AuNPs are useful for simple, rapid, and sensitive colorimetric detection of Cys, which is an essential amino acid in food and biological systems.en_US
dc.description.sponsorshipNatl. Inst. of Food and Agriculture, United States Dept. of Agriculture [WIS01620]; UW MRSEC [DMR-1121288]; UW NSEC [DMR-0832760]; Wisconsin Distinguished Graduate Fellowship; IFT; Scientific and Technological Research Council of Turkey TUBITAK [TUBITAK BIDEB 2219]; Division Of Materials Research; Direct For Mathematical & Physical Scien [0832760] Funding Source: National Science Foundationen_US
dc.description.sponsorshipThis material is based upon work support by the Natl. Inst. of Food and Agriculture, United States Dept. of Agriculture, under ID number WIS01620. Authors acknowledge the use of instrumentation funded by UW MRSEC (DMR-1121288) and UW NSEC (DMR-0832760). Author Wang acknowledges the support of Wisconsin Distinguished Graduate Fellowship and the IFT feeding tomorrow graduate scholarship. Author Bagci acknowledges the support of International Post-doctoral Research Scholarship Program from The Scientific and Technological Research Council of Turkey TUBITAK (TUBITAK BIDEB 2219).en_US
dc.identifier.doi10.1111/1750-3841.12974
dc.identifier.endpageN2078en_US
dc.identifier.issn0022-1147
dc.identifier.issn1750-3841
dc.identifier.issue9en_US
dc.identifier.pmid26239641en_US
dc.identifier.scopus2-s2.0-84941743400en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpageN2071en_US
dc.identifier.urihttps://doi.org/10.1111/1750-3841.12974
dc.identifier.urihttps://hdl.handle.net/20.500.14551/18362
dc.identifier.volume80en_US
dc.identifier.wosWOS:000364634300018en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofJournal Of Food Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAmino Aciden_US
dc.subjectApple Juiceen_US
dc.subjectColorimetric Sensoren_US
dc.subjectGold Nanoparticlesen_US
dc.subjectGreen Synthesisen_US
dc.subjectVisible Detectionen_US
dc.subjectSizeen_US
dc.subjectAggregationen_US
dc.subjectReductionen_US
dc.subjectMechanismen_US
dc.subjectNanorodsen_US
dc.subjectAppleen_US
dc.titleA Simple and Green Route for Room-Temperature Synthesis of Gold Nanoparticles and Selective Colorimetric Detection of Cysteineen_US
dc.typeArticleen_US

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