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Cheng C, Han M, Xiang G, Fu X, Wang X, Lu C. Bimetallic iron-copper nanozyme for determination and degradation of norfloxacin in foods. Food Chem 2024; 444:138667. [PMID: 38335686 DOI: 10.1016/j.foodchem.2024.138667] [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: 08/09/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Iron-copper nanozymes (Fe-Cu NZs) with good peroxidase activity were prepared through hydrothermal method by using copper nitrate as copper source, iron acetate as iron source and 2, 5-dihydroxyterephthalic acid as organic ligand. Upon oxidation of the colourless TMB to light blue products by Fe-Cu NZs, the addition of Norfloxacin (NOR) resulted in a colour change to dark blue. The absorbance of the system correlated linearly with NOR concentration in the range of 3.3 μM to 66 μM, and the detection limit (LOD) was 0.386 μM. A rapid colourimetric assay for the determination of NOR in food matrices was developed, with a detection time of only one minute. Additionally, the assay facilitated the simultaneous catalytic degradation of NOR via Fe-Cu NZs. The primary degradation mechanism of NOR was identified as the transformation of the quinolone ring and the cleavage of the C9 = C10 double bond, which was substantiated by high-performance liquid chromatography (HPLC).
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Affiliation(s)
- Cong Cheng
- College of Science, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Min Han
- College of Science, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Gang Xiang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xiaoying Fu
- Sichuan Agricultural University Library, Chengdu 611130, Sichuan, China
| | - Xianxing Wang
- College of Science, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
| | - Changfang Lu
- College of Science, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
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2
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Shen YZ, Xie WZ, Wang Z, Ning KP, Ji ZP, Li HB, Hu XY, Ma C, Qin X. A generalizable sensing platform based on molecularly imprinted polymer-aptamer double recognition and nanoenzyme assisted photoelectrochemical-colorimetric dual-mode detection. Biosens Bioelectron 2024; 254:116201. [PMID: 38507928 DOI: 10.1016/j.bios.2024.116201] [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: 01/15/2024] [Revised: 02/28/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024]
Abstract
Developing highly sensitive and selective methods that incorporate specific recognition elements is crucial for detecting small molecules because of the limited availability of small molecule antibodies and the challenges in obtaining sensitive signals. In this study, a generalizable photoelectrochemical-colorimetric dual-mode sensing platform was constructed based on the synergistic effects of a molecularly imprinted polymer (MIP)-aptamer sandwich structure and nanoenzymes. The MIP functionalized peroxidase-like Fe3O4 (Fe3O4@MIPs) and alkaline phosphatase mimic Zr-MOF labeled aptamer (Zr-mof@Apt) were used as the recognition elements. By selectively accumulating dibutyl phthalate (DBP), a small molecule target model, on Fe3O4@MIPs, the formation of Zr-MOF@Apt-DBP- Fe3O4@MIPs sandwich structure was triggered. Fe3O4@MIPs oxidized TMB to form blue-colored oxTMB. However, upon selective accumulation of DBP, the catalytic activity of Fe3O4@MIPs was inhibited, resulting in a lighter color that was detectable by the colorimetric method. Additionally, Zr-mof@Apt effectively catalyzed the hydrolysis of L-Ascorbic acid 2-phosphate sesquimagnesium salt hydrate (AAPS), generating ascorbic acid (AA) that could neutralize the photogenerated holes to decrease the photocurrent signals for PEC sensing and reduce oxTMB for colorimetric testing. The dual-mode platform showed strong linearity for different concentrations of DBP from 1.0 pM to 10 μM (PEC) and 0.1 nM to 0.5 μM (colorimetry). The detection limits were 0.263 nM (PEC) and 30.1 nM (colorimetry) (S/N = 3), respectively. The integration of dual-signal measurement mode and sandwich recognition strategy provided a sensitive and accurate platform for the detection of small molecules.
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Affiliation(s)
- Ying-Zhuo Shen
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Wen Zheng Xie
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Zheng Wang
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Kang Ping Ning
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Zheng Ping Ji
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Hong Bo Li
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China; School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, China
| | - Xiao-Ya Hu
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Cheng Ma
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| | - Xu Qin
- Institute of Innovation Materials and Energy, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, China.
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3
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Gao L, Zhang Y, Chen L, Zhou Q, Zhou N, Xia X. Study of dual binding specificity of aptamer to ochratoxin A and norfloxacin and the development of fluorescent aptasensor in milk detection. Talanta 2024; 273:125935. [PMID: 38503123 DOI: 10.1016/j.talanta.2024.125935] [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: 07/06/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
Target specificity, one of aptamer characteristics that determine recognition efficiency of biosensors, is generally considered to be an intrinsic property of aptamer. However, a high-affinity aptamer may have additional target binding specificity, little is known about the specificity of aptamer binding to multiple targets, which may result in false-positive results that hinder the accuracy of detection. Herein, an aptamer OBA3 with dual target ochratoxin A (OTA) and norfloxacin (NOR) was used as an example to explore the binding specificity mechanism and developed rapid fluorescent aptasensing methods. The nucleotide 15th T of aptamer OBA3 was demonstrated to be critical for specificity and affinity binding of target OTA via site-saturation mutagenesis. Substituting the 15th T base for C base could directly improve recognition specificity of aptamer for NOR and remove the binding affinity for OTA. The combination of π-π stacking interactions, salt bridges and hydrogen bonds between loop pocket of aptamer and quinolone skeleton, piperazinyl group may contributes to the fluoroquinolone antibiotics (NOR and difloxacin)-aptamer recognition interaction. Based on this understanding, a dual-aptamer fluorescent biosensor was fabricated for simultaneous detection of OTA and NOR, which has a linear detection range of 50-6000 nM with a detection limit of 31 nM for OTA and NOR. Combined with T15C biosensor for eliminating interference of OTA, the assay was applied to milk samples with satisfactory recovery (94.06-100.93%), which can achieve detection of OTA and NOR individually within 40 min.
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Affiliation(s)
- Ling Gao
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Yue Zhang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Lu Chen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Qingtong Zhou
- School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Nandi Zhou
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Xiaole Xia
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China.
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4
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Abedi-Firoozjah R, Alizadeh-Sani M, Zare L, Rostami O, Azimi Salim S, Assadpour E, Azizi-Lalabadi M, Zhang F, Lin X, Jafari SM. State-of-the-art nanosensors and kits for the detection of antibiotic residues in milk and dairy products. Adv Colloid Interface Sci 2024; 328:103164. [PMID: 38703455 DOI: 10.1016/j.cis.2024.103164] [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: 01/19/2024] [Revised: 04/17/2024] [Accepted: 04/24/2024] [Indexed: 05/06/2024]
Abstract
Antibiotic resistance is increasingly seen as a future concern, but antibiotics are still commonly used in animals, leading to their accumulation in humans through the food chain and posing health risks. The development of nanomaterials has opened up possibilities for creating new sensing strategies to detect antibiotic residues, resulting in the emergence of innovative nanobiosensors with different benefits like rapidity, simplicity, accuracy, sensitivity, specificity, and precision. Therefore, this comprehensive review provides pertinent and current insights into nanomaterials-based electrochemical/optical sensors for the detection of antibitic residues (ANBr) across milk and dairy products. Here, we first discuss the commonly used ANBs in real products, the significance of ANBr, and also their binding/biological properties. Then, we provide an overview of the role of using different nanomaterials on the development of advanced nanobiosensors like fluorescence-based, colorimetric, surface-enhanced Raman scattering, surface plasmon resonance, and several important electrochemical nanobiosensors relying on different kinds of electrodes. The enhancement of ANB electrochemical behavior for detection is also outlined, along with a concise overview of the utilization of (bio)recognition units. Ultimately, this paper offers a perspective on the future concepts of this research field and commercialized nanomaterial-based sensors to help upgrade the sensing techniques for ANBr in dairy products.
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Affiliation(s)
- Reza Abedi-Firoozjah
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mahmood Alizadeh-Sani
- Department of Food Science and Technology, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Leila Zare
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Omid Rostami
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science, Food Science and Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shamimeh Azimi Salim
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Elham Assadpour
- Food Industry Research Co., Gorgan, Iran; Food and Bio-Nanotech International Research Center (Fabiano), Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Maryam Azizi-Lalabadi
- Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran..
| | - Fuyuan Zhang
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China.
| | - Xingyu Lin
- College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Fuli Institute of Food Science, Zhejiang University, Hangzhou, China
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran; Halal Research Center of IRI, Iran Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran.
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Bu Z, Huang L, Li S, Tian Q, Tang Z, Diao Q, Chen X, Liu J, Niu X. Introducing molecular imprinting onto nanozymes: toward selective catalytic analysis. Anal Bioanal Chem 2024:10.1007/s00216-024-05183-2. [PMID: 38308711 DOI: 10.1007/s00216-024-05183-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/21/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
The discovery of enzyme-like catalytic characteristics in nanomaterials triggers the generation of nanozymes and their multifarious applications. As a class of artificial mimetic enzymes, nanozymes are widely recognized to have better stability and lower cost than natural bio-enzymes, but the lack of catalytic specificity hinders their wider use. To solve the problem, several potential strategies are explored, among which molecular imprinting attracts much attention because of its powerful capacity for creating specific binding cavities as biomimetic receptors. Attractively, introducing molecularly imprinted polymers (MIPs) onto nanozyme surfaces can make an impact on the latter's catalytic activity. As a result, in recent years, MIPs featuring universal fabrication, low cost, and good stability have been intensively integrated with nanozymes for biochemical detection. In this critical review, we first summarize the general fabrication of nanozyme@MIPs, followed by clarifying the potential effects of molecular imprinting on the catalytic performance of nanozymes in terms of selectivity and activity. Typical examples are emphatically discussed to highlight the latest progress of nanozyme@MIPs applied in catalytic analysis. In the end, personal viewpoints on the future directions of nanozyme@MIPs are presented, to provide a reference for studying the interactions between MIPs and nanozymes and attract more efforts to advance this promising area.
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Affiliation(s)
- Zhijian Bu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Lian Huang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Shu Li
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Qingzhen Tian
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Zheng Tang
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Qiaoqiao Diao
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Xinyu Chen
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Jinjin Liu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China
| | - Xiangheng Niu
- School of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, People's Republic of China.
- Shandong Key Laboratory of Biochemical Analysis, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China.
- State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Hunan Ecology and Environment Monitoring Center, Changsha, 410019, People's Republic of China.
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