Iron Single-Atom Catalysts Boost Photoelectrochemical Detection by Integrating Interfacial Oxygen Reduction and Enzyme-Mimicking Activity
The investigations on the generation, separation, and interfacial-redox-reaction processes of the photoinduced carriers are of paramount importance for realizing efficient photoelectrochemical (PEC) detection. However, the sluggish interfacial reactions of the photogenerated carriers, combined with...
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| Veröffentlicht in: | ACS nano 2022-02, Vol.16 (2), p.2997-3007 |
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| creator | Qin, Ying Wen, Jing Wang, Xiaosi Jiao, Lei Wei, Xiaoqian Wang, Hengjia Li, Jinli Liu, Mingwang Zheng, Lirong Hu, Liuyong Gu, Wenling Zhu, Chengzhou |
| description | The investigations on the generation, separation, and interfacial-redox-reaction processes of the photoinduced carriers are of paramount importance for realizing efficient photoelectrochemical (PEC) detection. However, the sluggish interfacial reactions of the photogenerated carriers, combined with the need for appropriate photoactive layers for sensing, remain challenges for the construction of advanced PEC platforms. Here, as a proof of concept, well-defined Fe single-atom catalysts (Fe SACs) were integrated on the surface of semiconductors, which amplified the PEC signals
boosting oxygen reduction reaction. Besides, Fe SACs were evidenced with efficient peroxidase-like activity, which depresses the PEC signals through the Fe SACs-mediated enzymatic precipitation reaction. Harnessing the oxygen reduction property and peroxidase-like activity of Fe SACs, a robust PEC sensing platform was successfully constructed for the sensitive detection of acetylcholinesterase activity and organophosphorus pesticides, providing guidelines for the employment of SACs for sensitive PEC analysis. |
| doi_str_mv | 10.1021/acsnano.1c10303 |
| format | Article |
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boosting oxygen reduction reaction. Besides, Fe SACs were evidenced with efficient peroxidase-like activity, which depresses the PEC signals through the Fe SACs-mediated enzymatic precipitation reaction. Harnessing the oxygen reduction property and peroxidase-like activity of Fe SACs, a robust PEC sensing platform was successfully constructed for the sensitive detection of acetylcholinesterase activity and organophosphorus pesticides, providing guidelines for the employment of SACs for sensitive PEC analysis.</description><identifier>ISSN: 1936-0851</identifier><identifier>EISSN: 1936-086X</identifier><identifier>DOI: 10.1021/acsnano.1c10303</identifier><identifier>PMID: 35147022</identifier><language>eng</language><publisher>United States</publisher><subject>Acetylcholinesterase ; Biosensing Techniques ; Iron - chemistry ; Organophosphorus Compounds ; Oxygen ; Pesticides - chemistry</subject><ispartof>ACS nano, 2022-02, Vol.16 (2), p.2997-3007</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c297t-a3d2e111a462376b86fe1a4b4160bcdc2f6996bf97a3be704eb33c70602441d43</citedby><cites>FETCH-LOGICAL-c297t-a3d2e111a462376b86fe1a4b4160bcdc2f6996bf97a3be704eb33c70602441d43</cites><orcidid>0000-0003-0679-7965</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,2752,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35147022$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Qin, Ying</creatorcontrib><creatorcontrib>Wen, Jing</creatorcontrib><creatorcontrib>Wang, Xiaosi</creatorcontrib><creatorcontrib>Jiao, Lei</creatorcontrib><creatorcontrib>Wei, Xiaoqian</creatorcontrib><creatorcontrib>Wang, Hengjia</creatorcontrib><creatorcontrib>Li, Jinli</creatorcontrib><creatorcontrib>Liu, Mingwang</creatorcontrib><creatorcontrib>Zheng, Lirong</creatorcontrib><creatorcontrib>Hu, Liuyong</creatorcontrib><creatorcontrib>Gu, Wenling</creatorcontrib><creatorcontrib>Zhu, Chengzhou</creatorcontrib><title>Iron Single-Atom Catalysts Boost Photoelectrochemical Detection by Integrating Interfacial Oxygen Reduction and Enzyme-Mimicking Activity</title><title>ACS nano</title><addtitle>ACS Nano</addtitle><description>The investigations on the generation, separation, and interfacial-redox-reaction processes of the photoinduced carriers are of paramount importance for realizing efficient photoelectrochemical (PEC) detection. However, the sluggish interfacial reactions of the photogenerated carriers, combined with the need for appropriate photoactive layers for sensing, remain challenges for the construction of advanced PEC platforms. Here, as a proof of concept, well-defined Fe single-atom catalysts (Fe SACs) were integrated on the surface of semiconductors, which amplified the PEC signals
boosting oxygen reduction reaction. Besides, Fe SACs were evidenced with efficient peroxidase-like activity, which depresses the PEC signals through the Fe SACs-mediated enzymatic precipitation reaction. 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boosting oxygen reduction reaction. Besides, Fe SACs were evidenced with efficient peroxidase-like activity, which depresses the PEC signals through the Fe SACs-mediated enzymatic precipitation reaction. Harnessing the oxygen reduction property and peroxidase-like activity of Fe SACs, a robust PEC sensing platform was successfully constructed for the sensitive detection of acetylcholinesterase activity and organophosphorus pesticides, providing guidelines for the employment of SACs for sensitive PEC analysis.</abstract><cop>United States</cop><pmid>35147022</pmid><doi>10.1021/acsnano.1c10303</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-0679-7965</orcidid></addata></record> |
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| subjects | Acetylcholinesterase Biosensing Techniques Iron - chemistry Organophosphorus Compounds Oxygen Pesticides - chemistry |
| title | Iron Single-Atom Catalysts Boost Photoelectrochemical Detection by Integrating Interfacial Oxygen Reduction and Enzyme-Mimicking Activity |
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