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用于双酚A灵敏且选择性电化学检测的载金纳米粒子二氧化硅纳米球

Gold Nanoparticle-Loaded Silica Nanospheres for Sensitive and Selective Electrochemical Detection of Bisphenol A.

作者信息

Silva Helttoney Antonio Rodrigues da, Barbosa Keleen M, Alsaiari Raiedhah A, Silva Gabriela Nunes, Junior João Luiz de Oliveira Maciel, Cangussu Alex Sander Rodrigues, Barros Sergio Bitencourt Araujo, Costa Luelc S da, Dos Santos Junior José Ribeiro, De Moura Carla Verônica R, Alsaiari Mabkhoot, de Oliveira Vaeudo Valdimiro, Pereira Anna K Dos S, Santos Lucas Samuel S, Rahim Abdur

机构信息

Universidade Federal do Tocantins, Campus de Gurupi, Gurupi 77001-090, Tocantins, Brazil.

Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Sharurah 68342, Saudi Arabia.

出版信息

ACS Omega. 2023 Oct 11;8(42):39023-39034. doi: 10.1021/acsomega.3c03607. eCollection 2023 Oct 24.

DOI:10.1021/acsomega.3c03607
PMID:37901482
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10600914/
Abstract

In this work, silica nanospheres were used as support for gold nanoparticles and applied for bisphenol A electrochemical detection. The development of new silica-supported materials has attracted increasing attention in the scientific world. One approach of interest is using silica nanospheres as support for gold nanoparticles. These materials have a variety of applications in several areas, such as electrochemical sensors. The obtained materials were characterized by solid-state UV-vis spectroscopy, electron microscopy, X-ray diffraction, and electrochemical techniques. The electrode modified with AuSiO700/CHI/Pt was applied as an electrochemical sensor for BPA, presenting an oxidation potential of 0.842 V and a higher peak current among the tested materials. The AuSiO700/CHI/Pt electrode showed a logarithmic response for the detection of BPA in the range of 1-1000 nmol L, with a calculated detection limit of 7.75 nmol L and a quantification limit of 25.8 nmol L. Thus, the electrode AuSiO700/CHI/Pt was presented as a promising alternative to an electrochemical sensor in the detection of BPA.

摘要

在这项工作中，二氧化硅纳米球被用作金纳米颗粒的载体，并应用于双酚A的电化学检测。新型二氧化硅负载材料的开发在科学界引起了越来越多的关注。一种令人感兴趣的方法是使用二氧化硅纳米球作为金纳米颗粒的载体。这些材料在电化学传感器等多个领域有多种应用。通过固态紫外可见光谱、电子显微镜、X射线衍射和电化学技术对所制备的材料进行了表征。用AuSiO700/CHI/Pt修饰的电极作为双酚A的电化学传感器，在所测试的材料中呈现出0.842 V的氧化电位和较高的峰值电流。AuSiO700/CHI/Pt电极在1 - 1000 nmol/L范围内对双酚A的检测呈对数响应，计算得到的检测限为7.75 nmol/L，定量限为25.8 nmol/L。因此，AuSiO700/CHI/Pt电极被认为是双酚A电化学检测中有前景的替代传感器。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/fbe4f9bb7b6f/ao3c03607_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/e9fd29cc0589/ao3c03607_0001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/db4cc0b7673e/ao3c03607_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/8f48c1ab3209/ao3c03607_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/1182ec63b7bf/ao3c03607_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/3387b72006a5/ao3c03607_0007.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/fbe4f9bb7b6f/ao3c03607_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/e9fd29cc0589/ao3c03607_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/7da2b524449d/ao3c03607_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/689606684f47/ao3c03607_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/db4cc0b7673e/ao3c03607_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/8f48c1ab3209/ao3c03607_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/1182ec63b7bf/ao3c03607_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/3387b72006a5/ao3c03607_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/5d01426d19d0/ao3c03607_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5b9d/10600914/fbe4f9bb7b6f/ao3c03607_0009.jpg

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