AgPt/MoS hybrid as electrochemical sensor for detecting HO release from living cells
Hydrogen peroxide (H 2 O 2 ), as a biomarker in a series of physiological processes, plays a crucial role in investigating the pathogenesis of some diseases. The highly sensitive and selective detection of H 2 O 2 release from living cells has aroused tremendous research interests. Herein, a non-enz...
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| Published in | New journal of chemistry Vol. 46; no. 31; pp. 1532 - 1541 |
|---|---|
| Main Authors | , , , , , , , |
| Format | Journal Article |
| Published |
08.08.2022
|
| Online Access | Get full text |
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| Abstract | Hydrogen peroxide (H
2
O
2
), as a biomarker in a series of physiological processes, plays a crucial role in investigating the pathogenesis of some diseases. The highly sensitive and selective detection of H
2
O
2
release from living cells has aroused tremendous research interests. Herein, a non-enzymatic electrochemical H
2
O
2
biosensor was constructed based on AgPt bimetallic nanoparticle-structured MoS
2
nanohybrid (AgPt/MoS
2
) as an electrocatalyst. The AgPt/MoS
2
nanohybrid was successfully synthesized by a facile wet-chemical method. Compared with AgPt nanoparticles, the AgPt/MoS
2
nanohybrid exhibited significant enhancement in catalytic performance towards H
2
O
2
. The main factor is that MoS
2
nanosheets as a supporting material promote AgPt nanoparticles to expose more active sites. The electrochemical response of the AgPt/MoS
2
hybrid-based biosensor to H
2
O
2
was linear in the range of 20 μM-4 mM, and the detection limit was calculated as 1.0 μM. To prove practicality, the biosensor was further applied to detect H
2
O
2
release from living SMMC-7721 cells. These results indicate the potential applications of the developed biosensor in monitoring physiological processes.
A novel non-enzymatic H
2
O
2
biosensor based on a AgPt/MoS
2
nanohybrid exhibits high sensitivity and selectivity. |
|---|---|
| AbstractList | Hydrogen peroxide (H
2
O
2
), as a biomarker in a series of physiological processes, plays a crucial role in investigating the pathogenesis of some diseases. The highly sensitive and selective detection of H
2
O
2
release from living cells has aroused tremendous research interests. Herein, a non-enzymatic electrochemical H
2
O
2
biosensor was constructed based on AgPt bimetallic nanoparticle-structured MoS
2
nanohybrid (AgPt/MoS
2
) as an electrocatalyst. The AgPt/MoS
2
nanohybrid was successfully synthesized by a facile wet-chemical method. Compared with AgPt nanoparticles, the AgPt/MoS
2
nanohybrid exhibited significant enhancement in catalytic performance towards H
2
O
2
. The main factor is that MoS
2
nanosheets as a supporting material promote AgPt nanoparticles to expose more active sites. The electrochemical response of the AgPt/MoS
2
hybrid-based biosensor to H
2
O
2
was linear in the range of 20 μM-4 mM, and the detection limit was calculated as 1.0 μM. To prove practicality, the biosensor was further applied to detect H
2
O
2
release from living SMMC-7721 cells. These results indicate the potential applications of the developed biosensor in monitoring physiological processes.
A novel non-enzymatic H
2
O
2
biosensor based on a AgPt/MoS
2
nanohybrid exhibits high sensitivity and selectivity. |
| Author | Gao, Mingyan Hu, Jing Song, Zhengxun Zhu, Xiaona Wang, Zuobin Dong, Mingdong Wang, Yuqing Wang, Zegao |
| AuthorAffiliation | International Research Centre for Nano Handling and Manufacturing of China Interdisciplinary Nanoscience Center (iNANO) Changchun University of Science and Technology Aarhus University |
| AuthorAffiliation_xml | – name: Changchun University of Science and Technology – name: Interdisciplinary Nanoscience Center (iNANO) – name: Aarhus University – name: International Research Centre for Nano Handling and Manufacturing of China |
| Author_xml | – sequence: 1 givenname: Xiaona surname: Zhu fullname: Zhu, Xiaona – sequence: 2 givenname: Zegao surname: Wang fullname: Wang, Zegao – sequence: 3 givenname: Mingyan surname: Gao fullname: Gao, Mingyan – sequence: 4 givenname: Yuqing surname: Wang fullname: Wang, Yuqing – sequence: 5 givenname: Jing surname: Hu fullname: Hu, Jing – sequence: 6 givenname: Zhengxun surname: Song fullname: Song, Zhengxun – sequence: 7 givenname: Zuobin surname: Wang fullname: Wang, Zuobin – sequence: 8 givenname: Mingdong surname: Dong fullname: Dong, Mingdong |
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| ContentType | Journal Article |
| DOI | 10.1039/d2nj02495k |
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| Notes | https://doi.org/10.1039/d2nj02495k Electronic supplementary information (ESI) available. See DOI |
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| Snippet | Hydrogen peroxide (H
2
O
2
), as a biomarker in a series of physiological processes, plays a crucial role in investigating the pathogenesis of some diseases.... |
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| Title | AgPt/MoS hybrid as electrochemical sensor for detecting HO release from living cells |
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