Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity

In this paper, a new method for pesticide detection based on porous silicon microcavities was proposed. First, the aptamer of acetamiprid was fixed in the functionalized porous silicon microcavity. Then, the complementary strand of the aptamer modified with graphene quantum dots was hybridized with...

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Autores principales:	Yun Gao, Lanlan Bai, Zhenhong Jia, Xiaoyi Lv, Xiaohui Huang
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2022
Materias:	Porous silicon graphene quantum dots aptamer acetamiprid Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/65f2b2a48fb24af8880cdd85b0806547
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id	oai:doaj.org-article:65f2b2a48fb24af8880cdd85b0806547
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spelling	oai:doaj.org-article:65f2b2a48fb24af8880cdd85b08065472021-11-23T00:00:23ZDetection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity1943-065510.1109/JPHOT.2021.3126630https://doaj.org/article/65f2b2a48fb24af8880cdd85b08065472022-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9609611/https://doaj.org/toc/1943-0655In this paper, a new method for pesticide detection based on porous silicon microcavities was proposed. First, the aptamer of acetamiprid was fixed in the functionalized porous silicon microcavity. Then, the complementary strand of the aptamer modified with graphene quantum dots was hybridized with the aptamer, and the effective refractive index of the porous silicon microcavity increased. When acetamiprid was added, it bound to the aptamer due to its stronger specificity. The aptamer separated from the complementary strand of the coupled graphene quantum dots and bound to acetamiprid, resulting in a decrease in the effective refractive index, and its central wavelength of reflection spectrum was blue shifted, and the blueshift increased with the increase of acetamiprid concentration. The relationship between the change in central wavelength and the concentration of acetamiprid was analysed, and the detection limit of acetamiprid was 151 nm.Yun GaoLanlan BaiZhenhong JiaXiaoyi LvXiaohui HuangIEEEarticlePorous silicongraphene quantum dotsaptameracetamipridApplied optics. PhotonicsTA1501-1820Optics. LightQC350-467ENIEEE Photonics Journal, Vol 14, Iss 1, Pp 1-6 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Porous silicon graphene quantum dots aptamer acetamiprid Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
spellingShingle	Porous silicon graphene quantum dots aptamer acetamiprid Applied optics. Photonics TA1501-1820 Optics. Light QC350-467 Yun Gao Lanlan Bai Zhenhong Jia Xiaoyi Lv Xiaohui Huang Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity
description	In this paper, a new method for pesticide detection based on porous silicon microcavities was proposed. First, the aptamer of acetamiprid was fixed in the functionalized porous silicon microcavity. Then, the complementary strand of the aptamer modified with graphene quantum dots was hybridized with the aptamer, and the effective refractive index of the porous silicon microcavity increased. When acetamiprid was added, it bound to the aptamer due to its stronger specificity. The aptamer separated from the complementary strand of the coupled graphene quantum dots and bound to acetamiprid, resulting in a decrease in the effective refractive index, and its central wavelength of reflection spectrum was blue shifted, and the blueshift increased with the increase of acetamiprid concentration. The relationship between the change in central wavelength and the concentration of acetamiprid was analysed, and the detection limit of acetamiprid was 151 nm.
format	article
author	Yun Gao Lanlan Bai Zhenhong Jia Xiaoyi Lv Xiaohui Huang
author_facet	Yun Gao Lanlan Bai Zhenhong Jia Xiaoyi Lv Xiaohui Huang
author_sort	Yun Gao
title	Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity
title_short	Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity
title_full	Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity
title_fullStr	Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity
title_full_unstemmed	Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity
title_sort	detection of acetamiprid by aptamer based on a porous silicon microcavity
publisher	IEEE
publishDate	2022
url	https://doaj.org/article/65f2b2a48fb24af8880cdd85b0806547
work_keys_str_mv	AT yungao detectionofacetamipridbyaptamerbasedonaporoussiliconmicrocavity AT lanlanbai detectionofacetamipridbyaptamerbasedonaporoussiliconmicrocavity AT zhenhongjia detectionofacetamipridbyaptamerbasedonaporoussiliconmicrocavity AT xiaoyilv detectionofacetamipridbyaptamerbasedonaporoussiliconmicrocavity AT xiaohuihuang detectionofacetamipridbyaptamerbasedonaporoussiliconmicrocavity
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Detection of Acetamiprid by Aptamer Based on a Porous Silicon Microcavity

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