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Liao Y, He Y, Zhang B, Ma Y, Zhao M, Xu R, Cui H. Preparation of hollow double-layer Pt@CeO 2 nanospheres as oxidase mimetics for the colorimetric-fluorescent-SERS triple-mode detection of glutathione in serum. Talanta 2024; 276:126234. [PMID: 38749161 DOI: 10.1016/j.talanta.2024.126234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 03/06/2024] [Accepted: 05/08/2024] [Indexed: 06/14/2024]
Abstract
Glutathione (GSH) is an essential antioxidant in the human body, but its detection is difficult due to the interference of complex components in serum. Herein, hollow double-layer Pt@CeO2 nanospheres were developed as oxidase mimetics, and the light-assisted oxidase mimetics effects were found. The oxidase activity was enhanced significantly by utilizing the synergistic effect of Schottky junction and the localized surface plasmon resonance (LSPR) of Pt under UV light. A novel GSH colorimetric-fluorescent-SERS sensing platform was established, with the sensing performance notably boosted by using the light-assisted oxidase mimetics effects. This platform boasts an exceptionally low detection limit (LOD) of 0.084 μM, while the detection time was shortened from 10 min to just 2 min. The anti-interference detection with high recovery rate (96.84%-107.4 %) in real serum made it be promising for practical application.
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Affiliation(s)
- Yiquan Liao
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Yichang He
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Bin Zhang
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Ye Ma
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Minggang Zhao
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China.
| | - Ruiqi Xu
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
| | - Hongzhi Cui
- School of Materials Science and Engineering, Ocean University of China, 266100, Qingdao, PR China
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Feng C, Bi Y, Chen C, Li S, Wang Z, Xin H, Pan Y, Liu F, Lu Y, Liu Y, Zhang R, Li X. Urea-H 2O 2 defect engineering of δ-MnO 2 for propane photothermal oxidation: Structure-activity relationship and synergetic mechanism determination. J Colloid Interface Sci 2023; 641:48-58. [PMID: 36924545 DOI: 10.1016/j.jcis.2023.03.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 03/17/2023]
Abstract
Photothermal catalysis has an advantage in effective and economical elimination technology of volatile organic compounds (VOCs) in the ascendant. Herein, various surface defect engineering routes were adopted to enhance the low-temperature propane oxidation of δ-MnO2. Compared to reducing etchants urea and vitamin C, δ-MnO2 treated with urea - H2O2 exhibited an excellent thermal (T90 = 240 ℃) and photothermal (T90 = 196 ℃) activities of propane oxidation. Urea - H2O2 treatment provided high concentration of Mn4+ and surface-active oxygen (Mn4+-Osur) species as surface-active sites, and produced numerous oxygen vacancies to improve charge separation and superoxide species generation capacity. Thus, the photothermal conversion efficiency and low-temperature reducibility were remarkably enhanced. Furthermore, the photothermal synergistic catalytic mechanism was proposed based on in-situ diffuse reflectance infrared Fourier transform spectroscopy and control experiments. The strategy here offered insight into the rational design of efficient transition catalysts, and in-depth understanding of the photothermal catalytic VOCs removal mechanism.
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Affiliation(s)
- Chao Feng
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China
| | - Yuxi Bi
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China
| | - Chong Chen
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China
| | - Shuangju Li
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Zhong Wang
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Hongchuan Xin
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yuan Pan
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China
| | - Fang Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China
| | - Yukun Lu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China
| | - Yunqi Liu
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China.
| | - Runduo Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xuebing Li
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
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Gao C, Wei W, Bai S, Li H. Application of CeTiOx-MOFs catalysts for synergistic removal of toluene and NOx. CATAL COMMUN 2023. [DOI: 10.1016/j.catcom.2023.106621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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