一种高效纳米生化传感器检测水中超低浓度四环素类抗生素残留的新途径

IF 2.2 4区 工程技术 Q2 Chemistry Gold Bulletin Pub Date : 2020-03-10 DOI:10.1007/s13404-020-00272-3
Alwan M. Alwan, Layla A. Wali, Khulood K. Hasan
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引用次数: 10

摘要

本研究报道了一种利用热点表面增强拉曼散射(SERS)传感器检测超低浓度四环素(TC)的新方法。采用一种简单、低成本的方法制备了金纳米颗粒/大孔硅(Au NPs/macroPSi)热点SERS传感器。采用Au NPs/macroPSi热点SERS传感器对低浓度(10 3 ~ 10 9)mol/L的TC类抗生素进行SERS检测。该传感器具有良好的TC检测性能,增强因子(EF)为2 × 2。108、超低检出限10?9?mol/L,重现性高,相对标准偏差为2%。评价了pH值对TC抗生素SERS光谱行为的影响,发现pH值5和6最适合TC抗生素的检测过程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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A new route for developing highly efficient nano biochemical sensors for detecting ultra-low concentrations of tetracycline antibiotic residue in water

This study reports a new detection process for sensing ultra-low concentrations of tetracycline (TC), using a hot spot surface-enhanced Raman scattering (SERS) sensor. A gold nanoparticles/ macroporous silicon (Au NPs/macroPSi) hot spot SERS sensor was fabricated using a very simple and low cost method. The SERS signal was investigated using Au NPs/macroPSi hot spot SERS sensor for efficient detection of TC antibiotics at lower concentrations of (10?3–10?9) mol/L. The sensor showed an excellent performance for TC detection with an enhancement factor (EF) of 2?×?108, ultra-low detection limit of 10?9?mol/L, and very high reproducibility with a relative standard deviation of 2%. The effect of the pH value on the behavior of the SERS spectra for TC antibiotic was evaluated, and it was found that pH values of 5 and 6 were the best for the detection process of TC antibiotic.

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来源期刊
Gold Bulletin
Gold Bulletin 工程技术-材料科学:综合
CiteScore
3.30
自引率
4.50%
发文量
0
审稿时长
3 months
期刊介绍: Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.
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