Iron-Imprinted Single-Atomic Site Catalyst-Based Nanoprobe for Detection of Hydrogen Peroxide in Living Cells

Highlights A facile ion-imprinting method (IIM) is used to synthesize the isolated Fe-N-C single-atomic site catalyst (IIM-Fe-SASC), which mimics the natural enzyme-like active site and shows excellent peroxidase-like activity. The ion-imprinting process can precisely control ion at the atomic level...

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Veröffentlicht in:Nano-Micro Letters 2021-12, Vol.13 (1), p.146-146, Article 146
Hauptverfasser: Lyu, Zhaoyuan, Ding, Shichao, Wang, Maoyu, Pan, Xiaoqing, Feng, Zhenxing, Tian, Hangyu, Zhu, Chengzhou, Du, Dan, Lin, Yuehe
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container_issue 1
container_start_page 146
container_title Nano-Micro Letters
container_volume 13
creator Lyu, Zhaoyuan
Ding, Shichao
Wang, Maoyu
Pan, Xiaoqing
Feng, Zhenxing
Tian, Hangyu
Zhu, Chengzhou
Du, Dan
Lin, Yuehe
description Highlights A facile ion-imprinting method (IIM) is used to synthesize the isolated Fe-N-C single-atomic site catalyst (IIM-Fe-SASC), which mimics the natural enzyme-like active site and shows excellent peroxidase-like activity. The ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C sites. The IIM-Fe-SASC has been successfully used as the nanoprobe for in situ H 2 O 2 detection generated from MDA-MB-231 cells. Fe-based single-atomic site catalysts (SASCs), with the natural metalloproteases-like active site structure, have attracted widespread attention in biocatalysis and biosensing. Precisely, controlling the isolated single-atom Fe-N-C active site structure is crucial to improve the SASCs’ performance. In this work, we use a facile ion-imprinting method (IIM) to synthesize isolated Fe-N-C single-atomic site catalysts (IIM-Fe-SASC). With this method, the ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C sites. The IIM-Fe-SASC shows better peroxidase-like activities than that of non-imprinted references. Due to its excellent properties, IIM-Fe-SASC is an ideal nanoprobe used in the colorimetric biosensing of hydrogen peroxide (H 2 O 2 ). Using IIM-Fe-SASC as the nanoprobe, in situ detection of H 2 O 2 generated from MDA-MB-231 cells has been successfully demonstrated with satisfactory sensitivity and specificity. This work opens a novel and easy route in designing advanced SASC and provides a sensitive tool for intracellular H 2 O 2 detection.
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In this work, we use a facile ion-imprinting method (IIM) to synthesize isolated Fe-N-C single-atomic site catalysts (IIM-Fe-SASC). With this method, the ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C sites. The IIM-Fe-SASC shows better peroxidase-like activities than that of non-imprinted references. Due to its excellent properties, IIM-Fe-SASC is an ideal nanoprobe used in the colorimetric biosensing of hydrogen peroxide (H 2 O 2 ). Using IIM-Fe-SASC as the nanoprobe, in situ detection of H 2 O 2 generated from MDA-MB-231 cells has been successfully demonstrated with satisfactory sensitivity and specificity. 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Fe-based single-atomic site catalysts (SASCs), with the natural metalloproteases-like active site structure, have attracted widespread attention in biocatalysis and biosensing. Precisely, controlling the isolated single-atom Fe-N-C active site structure is crucial to improve the SASCs’ performance. In this work, we use a facile ion-imprinting method (IIM) to synthesize isolated Fe-N-C single-atomic site catalysts (IIM-Fe-SASC). With this method, the ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C sites. The IIM-Fe-SASC shows better peroxidase-like activities than that of non-imprinted references. Due to its excellent properties, IIM-Fe-SASC is an ideal nanoprobe used in the colorimetric biosensing of hydrogen peroxide (H 2 O 2 ). Using IIM-Fe-SASC as the nanoprobe, in situ detection of H 2 O 2 generated from MDA-MB-231 cells has been successfully demonstrated with satisfactory sensitivity and specificity. 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(ANL), Argonne, IL (United States). Advanced Photon Source (APS)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Iron-Imprinted Single-Atomic Site Catalyst-Based Nanoprobe for Detection of Hydrogen Peroxide in Living Cells</atitle><jtitle>Nano-Micro Letters</jtitle><stitle>Nano-Micro Lett</stitle><stitle>NANO-MICRO LETT</stitle><addtitle>Nanomicro Lett</addtitle><date>2021-12-01</date><risdate>2021</risdate><volume>13</volume><issue>1</issue><spage>146</spage><epage>146</epage><pages>146-146</pages><artnum>146</artnum><issn>2311-6706</issn><eissn>2150-5551</eissn><abstract>Highlights A facile ion-imprinting method (IIM) is used to synthesize the isolated Fe-N-C single-atomic site catalyst (IIM-Fe-SASC), which mimics the natural enzyme-like active site and shows excellent peroxidase-like activity. The ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C sites. The IIM-Fe-SASC has been successfully used as the nanoprobe for in situ H 2 O 2 detection generated from MDA-MB-231 cells. Fe-based single-atomic site catalysts (SASCs), with the natural metalloproteases-like active site structure, have attracted widespread attention in biocatalysis and biosensing. Precisely, controlling the isolated single-atom Fe-N-C active site structure is crucial to improve the SASCs’ performance. In this work, we use a facile ion-imprinting method (IIM) to synthesize isolated Fe-N-C single-atomic site catalysts (IIM-Fe-SASC). With this method, the ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C sites. The IIM-Fe-SASC shows better peroxidase-like activities than that of non-imprinted references. Due to its excellent properties, IIM-Fe-SASC is an ideal nanoprobe used in the colorimetric biosensing of hydrogen peroxide (H 2 O 2 ). Using IIM-Fe-SASC as the nanoprobe, in situ detection of H 2 O 2 generated from MDA-MB-231 cells has been successfully demonstrated with satisfactory sensitivity and specificity. This work opens a novel and easy route in designing advanced SASC and provides a sensitive tool for intracellular H 2 O 2 detection.</abstract><cop>Singapore</cop><pub>Springer Nature Singapore</pub><pmid>34146178</pmid><doi>10.1007/s40820-021-00661-z</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0003-3791-7587</orcidid><orcidid>https://orcid.org/0000-0003-3795-306X</orcidid><orcidid>https://orcid.org/0000-0001-7598-5076</orcidid><oa>free_for_read</oa></addata></record>
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subjects Alzheimer's disease
Biosensing
Biosensors
Breast cancer
Catalysts
Chemical synthesis
Colorimetry
Engineering
Enzymes
Hydrogen peroxide
Iron
Living cell
Materials Science
Materials Science, Multidisciplinary
Nanoprobe
Nanoscale Science and Technology
Nanoscience & Nanotechnology
NANOSCIENCE AND NANOTECHNOLOGY
Nanotechnology
Nanotechnology and Microengineering
Nuclear facilities
Peroxidase
Peroxidase-like activities
Physical Sciences
Physics
Physics, Applied
Physiology
Polymerization
Science & Technology
Science & Technology - Other Topics
Single-atomic site catalysts
Technology
title Iron-Imprinted Single-Atomic Site Catalyst-Based Nanoprobe for Detection of Hydrogen Peroxide in Living Cells
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