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Li Y, Wang P, Huang L, Jia C, Gao X, Liu S, Wang S, Zhao P, Sun J, Zhang D, Zhu M, Shen Y, Wang J. Schiff-Base Chemistry-Coupled Catechol Oxidase-Like Nanozyme Reaction as a Universal Sensing Mode for Ultrasensitive Biosensing. Anal Chem 2023; 95:3769-3778. [PMID: 36757057 DOI: 10.1021/acs.analchem.2c04897] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Expanding sensing modes and improving catalytic performance of nanozyme-based analytical chemistry are beneficial to realizing the desired biosensing of analytes. Herein, Schiff-base chemistry coupled with a novel catechol oxidase-like nanozyme (CHzyme) is designed and constructed, exhibiting two main advantages, including (1) improving catalytic performance by nearly 2-fold compared with only the oxidase-like role of CHzyme; (2) increasing the designability of the output signal by signal transduction of cascade reaction. Thereafter, the substrate sensing modes based on a cascade reaction between the CHzyme-catalyzed reaction and Schiff-base chemistry are proposed and comprehensively studied, containing catalytic substrate sensing mode, competitive substrate sensing mode, and generated substrate sensing mode, expecting to be employed in environmental monitoring, food analyses, and clinical diagnoses, respectively. More meaningfully, the generated substrate sensing mode is successfully applied to construct a cascade reaction coupling ratiometric fluorescent immunoassay for the detection of clenbuterol, increasing 15-fold in detection sensitivity compared with the traditional enzyme-linked immunosorbent assay. It is expected that the expanded universal substrate sensing modes and the Schiff-base chemistry-enhanced nanozyme can enlighten the exploration of innovative biosensors.
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Affiliation(s)
- Yuechun Li
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Peng Wang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Lunjie Huang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Conghui Jia
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Xiang Gao
- School of Food and Biological Engineering Key Laboratory for Agricultural Products Processing, Hefei University of Technology, Anhui Province, Hefei, 230009, China
| | - Sijie Liu
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Shaochi Wang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Peng Zhao
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Jing Sun
- Qinghai Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 23 Xinning Road, Xining, 810008, QinghaiChina
| | - Daohong Zhang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
| | - Mingqiang Zhu
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, 712100, China
| | - Yizhong Shen
- School of Food and Biological Engineering Key Laboratory for Agricultural Products Processing, Hefei University of Technology, Anhui Province, Hefei, 230009, China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling, 712100, Shaanxi, China
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Guo F, Lou Y, Yan Q, Xiong J, Luo J, Shen C, Vayenas DV. Insight into the Fe-Ni/biochar composite supported three-dimensional electro-Fenton removal of electronic industry wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 325:116466. [PMID: 36327605 DOI: 10.1016/j.jenvman.2022.116466] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/28/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
For the efficient removal of the bio-refractory organic pollutants in the electronic industry wastewater, the Ni-Fe (oxides) modified three-dimension (3D) particle electrode was applied in electro-Fenton system (3D/EF), where iron ions were released from anode and deposited onto algal biochar (ABC) to prepare composite catalyst during reaction process. Firstly, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and Brunauer-Emmett-Teller (BET) analysis were applied to confirm successful fabrication of the 3D particle electrode materials. Secondly, COD removal efficiency could reach about 80%, which was about 20% higher than that in 2D/EF system, under the optimized conditions as 2.0 g/L of Ni-ABC particle electrodes, initial pH of 3, 100 mL/min of aeration intensity and 20 mA/cm2 of applied current density. Thirdly, characterized using three-dimensional fluorescence spectroscopy and GC-MS analysis, it seemed that most of the macromolecular substances could be degraded, whereas mono-2-ethylhexyl phthalate (MEHP) was identified as the most abundant and representative compound. Finally, possible degradation pathway of MEHP in 3D/EF system was proposed including dealkylation, cleavage of C-O bond, and demethylation. Therefore, this study provides a new strategy in designing EF system employing bimetal doped biochar composite for an efficient elimination of organic pollutants within electronic industry wastewater.
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Affiliation(s)
- Fang Guo
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China
| | - Yaoyin Lou
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Qun Yan
- School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, 214122, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou, 215011, China.
| | - Jianglei Xiong
- China Electronics System Engineering No. 2 Construction Co., Ltd, Wuxi, 214001, China
| | - Jiahao Luo
- China Electronics System Engineering No. 2 Construction Co., Ltd, Wuxi, 214001, China
| | - Chikang Shen
- China Electronics System Engineering No. 2 Construction Co., Ltd, Wuxi, 214001, China
| | - Dimitris V Vayenas
- Department of Chemical Engineering, University of Patras, Caratheodory 1, University Campus, GR-26504, Patras, Greece; Institute of Chemical Engineering and High Temperature Chemical Processes (FORTH/ICE-HT), Stadiou Str., Platani, GR-26504 Patras, Greece
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