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利用植物提取物合成银和金纳米粒子及其在电化学传感器中的应用。

Synthesis of Silver and Gold Nanoparticles from Plant Extract and Their Application in Electrochemical Sensors.

作者信息

Chelly Meryam, Chelly Sabrine, Zribi Rayhane, Bouaziz-Ketata Hanen, Gdoura Radhouane, Lavanya Nehru, Veerapandi Ganesan, Sekar Chinnathambi, Neri Giovanni

机构信息

Laboratory of Toxicology-Microbiology Environmental and Health, LR17ES06, Sfax Faculty of Sciences, University of Sfax, BP 1171, Sfax 3000, Tunisia.

Department of Engineering, University of Messina, C.da Di Dio, I-98166 Messina, Italy.

出版信息

Nanomaterials (Basel). 2021 Mar 15;11(3):739. doi: 10.3390/nano11030739.

DOI:10.3390/nano11030739
PMID:33804238
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8000144/
Abstract

The room-temperature synthesis of silver (AgNPs) and gold (AuNPs) nanoparticles from aqueous solution of AgNO and HAuCl respectively, using (RR) plant extract as a reducing agent, is reported here for the first time. The nanoparticles obtained were characterized by UV-Vis spectroscopy, transmission electron microscopy (TEM) and dynamic light scattering (DLS). The formation of nanoparticles with spherical-shaped morphology was verified by TEM and confirmed by UV-Vis spectroscopy through the analysis of Ag and Au plasmon resonance peak and DLS measurements. New electrochemical sensors have been developed by employing the synthesized Ag and Au nanoparticles as modifiers of glassy carbon electrode (GCE) and screen-printed carbon electrode (SPCE), respectively. The AgNPs-modified GCE was investigated for the electrochemical determination of hydrogen peroxide (HO). Further enhancement of electrochemical performances was obtained using a nanocomposite made of AgNPs and reduced graphene oxide (rGO)-modified GCE. The AuNPs-SPCE sensor was instead tested in the electrochemical sensing of riboflavin (RF). To our knowledge, this is the first paper reporting plant extract as a source for the synthesis of metal nanoparticles and their use for developing simple, sensitive and reliable electrochemical sensors for HO and RF.

摘要

本文首次报道了分别以硝酸银（AgNO）水溶液和氯金酸（HAuCl）为原料，使用（RR）植物提取物作为还原剂在室温下合成银纳米颗粒（AgNPs）和金纳米颗粒（AuNPs）。通过紫外可见光谱、透射电子显微镜（TEM）和动态光散射（DLS）对所得纳米颗粒进行了表征。通过TEM验证了具有球形形态的纳米颗粒的形成，并通过紫外可见光谱对银和金等离子体共振峰的分析以及DLS测量得到了证实。分别采用合成的银纳米颗粒和金纳米颗粒作为玻碳电极（GCE）和丝网印刷碳电极（SPCE）的修饰剂，开发了新型电化学传感器。研究了AgNPs修饰的GCE用于电化学测定过氧化氢（H₂O₂）。使用由AgNPs和还原氧化石墨烯（rGO）修饰的GCE制成的纳米复合材料进一步提高了电化学性能。相反，AuNPs-SPCE传感器用于核黄素（RF）的电化学传感测试。据我们所知，这是第一篇报道植物提取物作为合成金属纳米颗粒的来源及其用于开发用于H₂O₂和RF的简单、灵敏和可靠的电化学传感器的论文。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/2e14c7cf3969/nanomaterials-11-00739-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/3efd81b6e34c/nanomaterials-11-00739-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/00c9b4e9871c/nanomaterials-11-00739-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/6ebfea075b2b/nanomaterials-11-00739-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/54218bf5fc50/nanomaterials-11-00739-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/c9d1371c333b/nanomaterials-11-00739-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/8d50a1a4d6e2/nanomaterials-11-00739-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/ecbcc01eb302/nanomaterials-11-00739-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/f396aca5b92b/nanomaterials-11-00739-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/8dd180210c0a/nanomaterials-11-00739-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/2e14c7cf3969/nanomaterials-11-00739-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/3efd81b6e34c/nanomaterials-11-00739-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/00c9b4e9871c/nanomaterials-11-00739-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/3249b34a87ab/nanomaterials-11-00739-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/1f886cbe876d/nanomaterials-11-00739-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/cc39ba21ce38/nanomaterials-11-00739-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/6ebfea075b2b/nanomaterials-11-00739-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/54218bf5fc50/nanomaterials-11-00739-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/c9d1371c333b/nanomaterials-11-00739-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/8d50a1a4d6e2/nanomaterials-11-00739-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/ecbcc01eb302/nanomaterials-11-00739-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/f396aca5b92b/nanomaterials-11-00739-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/8dd180210c0a/nanomaterials-11-00739-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/52d1/8000144/2e14c7cf3969/nanomaterials-11-00739-g012.jpg

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