Facile Synthesis of Pd-Ir Nanocubes for Biosensing

Displaying extremely high peroxidase-like activity and uniform cubic structure enclosed by (100) facets, Pd-Ir nanocubes are an attractive nanomaterial for bioanalysis. However, there exists a great challenge to deposit atomic layers of Ir on the surface of Pd nanocubes due to the relatively low ene...

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Autores principales:	Jiuxing Li, Yingfu Li
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	Pd-Ir nanocubes peroxidase-mimicking nanozymes immunoassay aptamer fluorescent colorimetric biosensors PSA Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/191570fbaa564cd79f857b170d30cba0
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id	oai:doaj.org-article:191570fbaa564cd79f857b170d30cba0
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spelling	oai:doaj.org-article:191570fbaa564cd79f857b170d30cba02021-11-30T15:57:47ZFacile Synthesis of Pd-Ir Nanocubes for Biosensing2296-264610.3389/fchem.2021.775220https://doaj.org/article/191570fbaa564cd79f857b170d30cba02021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fchem.2021.775220/fullhttps://doaj.org/toc/2296-2646Displaying extremely high peroxidase-like activity and uniform cubic structure enclosed by (100) facets, Pd-Ir nanocubes are an attractive nanomaterial for bioanalysis. However, there exists a great challenge to deposit atomic layers of Ir on the surface of Pd nanocubes due to the relatively low energy barrier of homogeneous nucleation of Ir atoms compared to heterogeneous nucleation. Here, a simple and surfactant-free approach is presented to synthesize Pd-Ir nanocubes with atomic Ir shell thickness in an aqueous solution at room temperature. Biomolecules such as antibodies and nucleic acids have free access to the surface of Pd-Ir nanocubes. Applications of Pd-Ir nanocubes in immunoassays and aptamer-based biosensors are realized, exploiting the excellent peroxidase activity and fluorescence quenching ability of Pd-Ir nanocubes. This work makes a significant step forward towards the practical utility of Pd-Ir nanocubes in bioanalysis.Jiuxing LiYingfu LiFrontiers Media S.A.articlePd-Ir nanocubesperoxidase-mimicking nanozymesimmunoassayaptamerfluorescent colorimetric biosensorsPSAChemistryQD1-999ENFrontiers in Chemistry, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Pd-Ir nanocubes peroxidase-mimicking nanozymes immunoassay aptamer fluorescent colorimetric biosensors PSA Chemistry QD1-999
spellingShingle	Pd-Ir nanocubes peroxidase-mimicking nanozymes immunoassay aptamer fluorescent colorimetric biosensors PSA Chemistry QD1-999 Jiuxing Li Yingfu Li Facile Synthesis of Pd-Ir Nanocubes for Biosensing
description	Displaying extremely high peroxidase-like activity and uniform cubic structure enclosed by (100) facets, Pd-Ir nanocubes are an attractive nanomaterial for bioanalysis. However, there exists a great challenge to deposit atomic layers of Ir on the surface of Pd nanocubes due to the relatively low energy barrier of homogeneous nucleation of Ir atoms compared to heterogeneous nucleation. Here, a simple and surfactant-free approach is presented to synthesize Pd-Ir nanocubes with atomic Ir shell thickness in an aqueous solution at room temperature. Biomolecules such as antibodies and nucleic acids have free access to the surface of Pd-Ir nanocubes. Applications of Pd-Ir nanocubes in immunoassays and aptamer-based biosensors are realized, exploiting the excellent peroxidase activity and fluorescence quenching ability of Pd-Ir nanocubes. This work makes a significant step forward towards the practical utility of Pd-Ir nanocubes in bioanalysis.
format	article
author	Jiuxing Li Yingfu Li
author_facet	Jiuxing Li Yingfu Li
author_sort	Jiuxing Li
title	Facile Synthesis of Pd-Ir Nanocubes for Biosensing
title_short	Facile Synthesis of Pd-Ir Nanocubes for Biosensing
title_full	Facile Synthesis of Pd-Ir Nanocubes for Biosensing
title_fullStr	Facile Synthesis of Pd-Ir Nanocubes for Biosensing
title_full_unstemmed	Facile Synthesis of Pd-Ir Nanocubes for Biosensing
title_sort	facile synthesis of pd-ir nanocubes for biosensing
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/191570fbaa564cd79f857b170d30cba0
work_keys_str_mv	AT jiuxingli facilesynthesisofpdirnanocubesforbiosensing AT yingfuli facilesynthesisofpdirnanocubesforbiosensing
_version_	1718406489393070080

Facile Synthesis of Pd-Ir Nanocubes for Biosensing

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