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Yang H, Du J, Wang W, Li T, Zhang R, Yu Y, Li K, Lin Y. Engineering Cu-Ce-a nanozymes: Revolutionary alloy nanomaterials mimicking cytochrome c oxidase for ultra-sensitive cytochrome c detection. Talanta 2024; 282:126945. [PMID: 39342669 DOI: 10.1016/j.talanta.2024.126945] [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: 06/09/2024] [Revised: 09/18/2024] [Accepted: 09/24/2024] [Indexed: 10/01/2024]
Abstract
The design of synthetic analogs of cytochrome c oxidase (CcO) is a formidable task due to its intricate structure encompassing multiple metal prosthetic sites and protein subunits. In recent years, artificial enzymes based on alloy nanomaterials have garnered significant attention due to the alloy design approach holds promise for the effective tuning of the properties of metal catalysts. In this study, we present copper-cerium alloy nanozymes (Cu-Ce-a NEs), where Cu mimics the active site of CcO, while Ce endows the alloy phase and enhances the capacity to catalyze the oxidation to cytochrome c (Cyt c). Cu-Ce-a NEs functionally mimics CcO, the terminal enzyme in the respiratory electron transport chain (ETC), by catalyzing the four-electron reduction of dioxygen to water. Utilizing the CcO-like properties of Cu-Ce-a NEs, we successfully implemented the electrochemical detection of Cyt c. The Cu-Ce-a NEs based electrochemical sensor revealed a favorable linear range spanning from 2 to 20 μM Cyt c, with a detection limit (LOD) of 2 μM. This method demonstrates high accuracy in Cyt c quantitation in pharmaceuticals, with results closely aligning with the actual concentrations. This finding not only offers new perspectives in the design of enzyme analogs, but also underscores the potential of this method for clinical Cyt c detection, highlighting its significance in biomedical research and diagnostics.
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Affiliation(s)
- Huan Yang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Jingjie Du
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Wenzhu Wang
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, 100068, China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China; School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China
| | - Ting Li
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, 100068, China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China; School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China
| | - Ronghao Zhang
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yan Yu
- China Rehabilitation Science Institute, China Rehabilitation Research Center, Beijing, 100068, China; Beijing Key Laboratory of Neural Injury and Rehabilitation, Beijing, 100068, China; School of Rehabilitation Medicine, Capital Medical University, Beijing, 100068, China.
| | - Kai Li
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Yuqing Lin
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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Jin B, Zhang F, Wu G, Yuan T, Wang Q, Zhou H, Zhao Y, Zhang G, Hong X. Structural evolution induced by Au atom diffusion in Ag2S. Chem Commun (Camb) 2019; 55:13176-13178. [DOI: 10.1039/c9cc07660c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transition from amorphous Ag2S to crystalline AuAgS or Ag3AuS2 was discovered through Au single-atom diffusion.
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Affiliation(s)
- Benjin Jin
- Center of Advanced Nanocatalysis (CAN)
- Department of Applied Chemistry
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Fu Zhang
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Geng Wu
- Center of Advanced Nanocatalysis (CAN)
- Department of Applied Chemistry
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Tongwei Yuan
- Center of Advanced Nanocatalysis (CAN)
- Department of Applied Chemistry
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Qian Wang
- Center of Advanced Nanocatalysis (CAN)
- Department of Applied Chemistry
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Huang Zhou
- Center of Advanced Nanocatalysis (CAN)
- Department of Applied Chemistry
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Yafei Zhao
- Center of Advanced Nanocatalysis (CAN)
- Department of Applied Chemistry
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
| | - Genqiang Zhang
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Xun Hong
- Center of Advanced Nanocatalysis (CAN)
- Department of Applied Chemistry
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
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