Evidence map›Paper›PMID 39718634›Full record

ArticleMikrochimica acta2024

An aptamer sensor based on AgNPs@MOF for surface-enhanced Raman spectroscopy detection of sulfadimethoxine in food.

Zhanye Yang, Nan Zhang, Haiyang Lv, Xinge Ju, Yanhua Chen, Ziwei Zhang, Yuan Tian, Bing Zhao

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Article in Mikrochimica acta, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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8 authors.

Zhanye YangCollege of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun, 130012, People's Republic of China.
Nan ZhangCollege of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun, 130012, People's Republic of China.
Haiyang LvCollege of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun, 130012, People's Republic of China.
Xinge JuCollege of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun, 130012, People's Republic of China.
Yanhua ChenCollege of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun, 130012, People's Republic of China.
Ziwei ZhangCollege of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun, 130012, People's Republic of China. zzw@jlu.edu.cn.
Yuan TianCollege of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Changchun, 130012, People's Republic of China. tianyuan@jlu.edu.cn.
Bing ZhaoState Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, 130012, People's Republic of China.

Funding

Natural Science Foundation of Jilin Province No.20220101067JCthe National Natural Science Foundation of the P.R. China Grant No.22011540378
6 · The paper itself

Abstract

A highly sensitive aptamer sensor (aptasensor) is proposed based on metal-organic frameworks-silver nanoparticles (AgNPs@MOF) to detect sulfadimethoxine (SDM) by surface-enhanced Raman spectroscopy (SERS). AgNPs@MOF with SERS activity was successfully fabricated by synthesizing AgNPs in situ on the surface of MIL-101(Fe), and SDM aptamer and Raman reporter 4-aminophenthiophenol (4-ATP) were selected as specific recognition elements and signal probes, respectively. When SDM was absent, the SDM aptamers were effectively adsorbed on the surface of AgNPs@MOF, thus keeping AgNPs@MOF in a dispersed state, resulting in a weakened SERS signal of 4-ATP. In the presence of SDM, the combination of SDM and aptamer formed a rigid hairpin SDM-aptamer complex, which bound less to AgNPs@MOF. Therefore, fewer aptamers were adsorbed on AgNPs@MOF, which exposed more hot spots, resulting in an enhanced SERS signal of 4-ATP. The aptasensor had good selectivity and sensitivity towards SDM and a good linear relationship between SERS intensity and SDM concentration in the range 6.00-150.00 ng/mL, with the limit of detection as low as 2.73 ng/mL. Further application to honey and chicken samples spiked with SDM resulted in satisfactory recoveries, and the aptasensor showed good stability and reproducibility in real samples. The aptasensor based on AgNPs@MOF was proposed for the first time to detect trace SDM by SERS, which provided a favorable way to develop various sensing platforms for antibiotic detection in food safety.

Indexed as

Aptamers, NucleotideFood ContaminationLimit of DetectionMetal NanoparticlesMetal-Organic FrameworksSilverSpectrum Analysis, RamanSulfadimethoxineAniline CompoundsAnimalsBiosensing TechniquesFood AnalysisHoneySulfhydryl Compounds4-aminothiophenolAniline CompoundsAptamers, NucleotideMetal-Organic FrameworksMIL-101SilverSulfadimethoxineSulfhydryl CompoundsAgNPs@MOFAptasensorFood safetySERSSulfadimethoxine

Identifiers

PMID39718634

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