1
|
Yao H, Jia C, Dong Y. Sensitive detection of kanamycin based on ECL resonance energy transfer between iridium complex doped SiO 2 nanospheres and Au nanoparticles decorated TiVC MXene. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 317:124399. [PMID: 38718747 DOI: 10.1016/j.saa.2024.124399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/28/2024] [Accepted: 04/30/2024] [Indexed: 05/31/2024]
Abstract
Herein, a novel sandwich electrochemiluminescence (ECL) aptasensor was developed based on the resonance energy transfer (RET) with iridium complex doped silicate nanoparticles (SiO2@Ir) as energy donor and gold nanoparticles modified TiVC MXene (AuNPs@TiVC) as energy acceptor. Strong anodic ECL signal of SiO2@Ir was obtained through both co-reactant pathway and annihilation pathway. Electrochemical results showed that SiO2@Ir has good electron transfer rate and large specific surface area to immobilize more aptamers. AuNPs@TiVC apparently quenched the ECL signal of SiO2@Ir due to the ECL resonance energy transfer between them. In the presence of kanamycin (KAN), a sandwich type sensor was formed with the aptamer probes as connecters between the donor and the acceptor, resulting in the decrease of ECL intensity. Under the optimal condition, KAN could be sensitively detected in the range of 0.1 pg/mL to 10 ng/mL with a low detection limit of 24.5 fg/mL. The proposed ECL system exhibited satisfactory analytical performance, which can realize the detection of various biological molecules by adopting suitable aptamer.
Collapse
Affiliation(s)
- Haifeng Yao
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, 243002, China
| | - Changbo Jia
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, 243002, China
| | - Yongping Dong
- School of Chemistry and Chemical Engineering, Anhui University of Technology, Maanshan, 243002, China.
| |
Collapse
|
2
|
Du A, Lu Z, Hua L. Decentralized food safety and authentication on cellulose paper-based analytical platform: A review. Compr Rev Food Sci Food Saf 2024; 23:e13421. [PMID: 39136976 DOI: 10.1111/1541-4337.13421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 07/02/2024] [Accepted: 07/11/2024] [Indexed: 08/15/2024]
Abstract
Food safety and authenticity analysis play a pivotal role in guaranteeing food quality, safeguarding public health, and upholding consumer trust. In recent years, significant social progress has presented fresh challenges in the realm of food analysis, underscoring the imperative requirement to devise innovative and expedient approaches for conducting on-site assessments. Consequently, cellulose paper-based devices (PADs) have come into the spotlight due to their characteristics of microchannels and inherent capillary action. This review summarizes the recent advances in cellulose PADs in various food products, comprising various fabrication strategies, detection methods such as mass spectrometry and multi-mode detection, sampling and processing considerations, as well as applications in screening food safety factors and assessing food authenticity developed in the past 3 years. According to the above studies, cellulose PADs face challenges such as limited sample processing, inadequate multiplexing capabilities, and the requirement for workflow integration, while emerging innovations, comprising the use of simplified sample pretreatment techniques, the integration of advanced nanomaterials, and advanced instruments such as portable mass spectrometer and the innovation of multimodal detection methods, offer potential solutions and are highlighted as promising directions. This review underscores the significant potential of cellulose PADs in facilitating decentralized, cost-effective, and simplified testing methodologies to maintain food safety standards. With the progression of interdisciplinary research, cellulose PADs are expected to become essential platforms for on-site food safety and authentication analysis, thereby significantly enhancing global food safety for consumers.
Collapse
Affiliation(s)
- An Du
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science & Technology, Xi'an, P. R. China
| | - Zhaoqing Lu
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Paper Based Functional Materials of China National Light Industry, Shaanxi University of Science & Technology, Xi'an, P. R. China
| | - Li Hua
- College of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, P. R. China
| |
Collapse
|
3
|
Shu X, Guo P, Zhang G, Zhang W, Hu H, Peng J, Xiong Y, Ma B, Lai W. Novel litchi-like Au-Ag nanospheres driven dual-readout lateral flow immunoassay for sensitive detection of pyrimethanil. Food Chem 2024; 450:139380. [PMID: 38640535 DOI: 10.1016/j.foodchem.2024.139380] [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: 01/04/2024] [Revised: 04/10/2024] [Accepted: 04/13/2024] [Indexed: 04/21/2024]
Abstract
Pyrimethanil (PYR) is a fungicide that is harmful to consumers when present in foods at concentrations greater than maximum permitted residue levels. High-performance immunoprobes and dual-readout strategy may be useful for constructing sensitive lateral flow immunoassay (LFIA). Herein, the prepared litchi-like Au-Ag bimetallic nanospheres (LBNPs) exhibited high mass extinction coefficients and fluorescence quenching constants. Benefiting from LBNPs and dual-readout mode, the limits of detection of LBNPs-CM-LFIA and LBNPs-FQ-LFIA for PYR were 0.957 and 0.713 ng mL-1, which were 2.54- and 3.41-fold lower than that of gold nanoparticles-based LFIA, respectively. The limits of quantitation of LBNPs-CM-LFIA and LBNPs-FQ-LFIA were 3.740 and 1.672 ng mL-1, respectively. LBNPs-LFIA was applied to detect PYR in cucumber and grape samples with satisfactory recovery (90%-111%). LBNPs-LFIA showed good agreement with LC-MS/MS for the detection of PYR in the samples. Accordingly, this sensitive and accurate dual-readout LFIA based on LBNPs can be effectively applied for food safety.
Collapse
Affiliation(s)
- Xinhui Shu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Ping Guo
- Jiangxi General Institute of Testing and Certification, Nanchang 330029, China
| | - Gan Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Wei Zhang
- Jiangxi General Institute of Testing and Certification, Nanchang 330029, China
| | - Hong Hu
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Juan Peng
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China
| | - Bingfeng Ma
- Jiangxi General Institute of Testing and Certification, Nanchang 330029, China.
| | - Weihua Lai
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330047, China.
| |
Collapse
|
4
|
Lu J, Xu X, Chen J. Polyoxometalate-based nanozyme with laccase-mimicking activity for kanamycin detection based on colorimetric assay. Mikrochim Acta 2024; 191:544. [PMID: 39158765 DOI: 10.1007/s00604-024-06621-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 08/08/2024] [Indexed: 08/20/2024]
Abstract
As a kind of aminoglycoside antibiotics, kanamycin (KAN) is widely applied to animal husbandry and aquaculture. However, the abuse of KAN causes the large-scale discharge of it into rivers, lakes and groundwater, which threatens environmental safety and human health. Therefore, it is imperative to develop a method that is applicable to detect KAN in an efficient and accurate way. The colorimetric method based on enzymes provides a feasible solution for the detection of organic pollutants. However, the extensive application of natural enzymes is constrained by high cost and low stability. Herein, a polyoxometalate-based nanozyme, namely [H7SiW9V3O40(DPA)3]·4H2O (SiW9V3/DPA) (DPA = dipyridylamine), is synthesized. As a low-cost nanozyme with high stability compared to natural enzymes, SiW9V3/DPA performs well in laccase-mimicking activity. It can be used to induce chromogenic reaction between 2,4-dichlorophenol (2,4-DP) and 4-aminoantipyrine (4-AP), which generates red products. With the addition of KAN, the color fades. That is to say, KAN can be detected with colorimetric assay in the concentration range 0.1 to 100 μM with high selectivity and low limit of detection (LOD) of 6.28 μM. Moreover, SiW9V3/DPA is applied to KAN detection in lake and river water and milk with satisfactory results. To sum up, polyoxometalate-based nanozyme is expected to provide a promising solution to the detection of organic pollutants in the aquatic environment.
Collapse
Affiliation(s)
- Junjun Lu
- Department of Chemistry, College of Science, Northeastern University, Shenyang, 110819, Liaoning, China
| | - Xinxin Xu
- Department of Chemistry, College of Science, Northeastern University, Shenyang, 110819, Liaoning, China.
| | - Jin Chen
- Key Laboratory of Electromagnetic Processing of Materials, MOE, Northeastern University, Shenyang, 110819, Liaoning, China
| |
Collapse
|
5
|
Zhang Z, Feng Y, Teng H, Ru S, Li Y, Liu M, Wang J. Development and application of bisphenol S electrochemical immunosensor and iridium oxide nanoparticle-based lateral flow immunoassay. CHEMOSPHERE 2024; 364:143034. [PMID: 39117083 DOI: 10.1016/j.chemosphere.2024.143034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 08/01/2024] [Accepted: 08/05/2024] [Indexed: 08/10/2024]
Abstract
Bisphenol S (BPS) is a common pollutant in the environment and has posed a potential threat to aquatic animals and human health. To accurately assess the pollution level and ecological risk of BPS, there is an urgent need to establish simple and sensitive detection methods for BPS. In this study, BPS complete antigen was successfully prepared by introducing methyl 4-bromobutyrate and coupling bovine serum albumin (BSA). The monoclonal antibody against BPS (anti-BPS mAb) with high affinity (1: 256,000) was developed based on the BPS complete antigen, which showed low cross-reactivity with BPS structural analogues. Then, an electrochemical immunosensor was constructed to detect BPS using multi-walled carbon nanotubes and gold nanoflower composites as signal amplification elements and using anti-BPS mAb as the probe. The electrochemical immunosensor had a linear range from 1 to 250 ng⋅mL-1 and a limit of detection (LOD) down to 0.6 ng⋅mL-1. Additionally, a more stable and sensitive lateral flow immunoassay (LFIA) for BPS was developed based on iridium oxide nanoparticles, with a visual detection limit of 1 ng⋅mL-1, which was 10 times lower than that of classical Au-NPs LFIA. After evaluation of their stability and specificity, the reliability of these two methods were further validated by measuring BPS concentrations in the water and fish tissues. Thus, this study provides sensitive, robust and rapid methods for the detection of BPS in the environment and organisms, which can provide a methodological reference for monitoring environmental contaminants.
Collapse
Affiliation(s)
- Zhenzhong Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yongliang Feng
- Department of Basic Courses, Tangshan University, Tangshan, 063000, China
| | - Hayan Teng
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Shaoguo Ru
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yuejiao Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Minhao Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Jun Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China.
| |
Collapse
|
6
|
Wu W, Li Y, Song P, Xu Q, Lei D, Wang J, Fu B, Kong W. UiOL@AIEgens-assisted lateral flow immunosensor for the ultrasensitive dual-modal point-of-care detection of aflatoxin B 1. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133103. [PMID: 38043421 DOI: 10.1016/j.jhazmat.2023.133103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/13/2023] [Accepted: 11/25/2023] [Indexed: 12/05/2023]
Abstract
Aflatoxin B1 (AFB1) contamination in food has attracted worldwide attention. The sensitive detection of AFB1 is vital for ensuring food quality and safety. This study developed an ultrasensitive signal-enhanced lateral flow immunosensor (LFIS) based on the functionalized zirconium metal-organic framework (MOF) of a UiO linker enriched with abundant aggregation-induced emission luminogen (UiOL@AIEgens) probes for the rapid dual-modal point-of-care (POC) determination of AFB1. Using UiO MOFs with numerous active sites as the carrier facilitated abundant AIEgens enrichment on the surface. After coupling with enough anti-AFB1 monoclonal antibodies (mAbs), the green-emissive UiOL@AIEgens-mAbs probes with high specificity and remarkably-enhanced fluorescence responses were obtained to competitively capture target AFB1 in the standard or sample solution and AFB1 antigen immobilized on the test (T) line of the POC LFIS. Under optimum conditions, the LFIS was capable of visual qualitative and smartphone-assisted dual-modal determination of target AFB1 within 7 min. Detection occurred in a range of 0.01-5 ng/mL at an ultra-low detection limit of 0.003 ng/mL, which was 300- and 600-fold lower than traditional immunoassays and the maximum limit set by the European Union, respectively. Moreover, the feasibility and robustness of the LFIS platform were assessed by detecting AFB1 in maize and lotus seed samples with average recoveries of 94.3-109.0%. The developed UiOL@AIEgens-based POC LFIS can be used for ultrasensitive, reliable, on-site detection in food. This study provides a new method for the real-time monitoring of AFB1 and other harmful contaminants in food and more complex matrices.
Collapse
Affiliation(s)
- Wenjuan Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; College of Science, China Agricultural University, Beijing 100193, China
| | - Ying Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Pengyue Song
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Qingbin Xu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Doudou Lei
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jiabo Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Bin Fu
- College of Science, China Agricultural University, Beijing 100193, China
| | - Weijun Kong
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
| |
Collapse
|
7
|
Liang J, Wang K, Gong L, Zhang Z, Wang J, Cao Y, Yang T, Zeng H. High extinction coefficient material combined with multi-line lateral flow immunoassay strip for ultrasensitive detection of bacteria. Food Chem 2023; 427:136721. [PMID: 37390742 DOI: 10.1016/j.foodchem.2023.136721] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/02/2023]
Abstract
Lateral flow immunoassay strips (LFIAs) are a reliable and point-of-care detection method for rapid monitoring of bacteria, but their sensitivity was limited by the low extinction coefficient of colloidal gold nanoparticles (Au NPs) and low capture efficiency of test-line. In this study, polydopamine nanoparticles (PDA NPs) were employed to replace Au NPs, due to their high extinction coefficient. And the amount of test-line was increased to 5 for further improving the efficiency of bacteria capture. Thus, under visual observation, the detection limits of PDA-based LFIAs (102 CFU/mL) were about 2 orders of magnitude lower than Au-based LFIAs (104 CFU/mL). Furthermore, the invisible signal could be collected by Image J and the detection limit can reach 10 CFU/mL. The proposed test strips were successfully applied for the quantitative, accurate, and rapid screening of E. coli in food samples. This study provided a universal approach to enhance the sensitivity of bacteria LFIAs.
Collapse
Affiliation(s)
- Jianwei Liang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Kuiyu Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Liangke Gong
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Zhaoyang Zhang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Jinhao Wang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Yuhua Cao
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Tao Yang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
| | - Hui Zeng
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China; Guangdong Youkai Science and Technology Co., Ltd., Foshan 528000, Guangdong, China.
| |
Collapse
|
8
|
Sun Y, Zhu D, Tao R, Li L, Fan B, Wang F. High Specific and Rapid Detection of Cannabidiol by Gold Nanoparticle-Based Paper Sensor. BIOSENSORS 2023; 13:960. [PMID: 37998135 PMCID: PMC10669437 DOI: 10.3390/bios13110960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 11/25/2023]
Abstract
In order to facilitate monitoring of cannabidiol (CBD), we devised a gold immunochromatographic sensor based on a specific monoclonal antibody (mAb). To prepare the antigen, a novel hapten with CBD moiety and a linear carbon chain was employed. By utilizing hybridoma technology, a specific mAb was screened and identified that exhibited a 50% maximal inhibitory concentration against CBD ranging from 28.97 to 443.97 ng/mL. Extensive optimization led to the establishment of visual limits of detection for CBD, achieving a remarkable sensitivity of 8 μg/mL in the assay buffer. To showcase the accuracy and stability, an analysis of CBD-spiked wine, sparkling water, and sports drink was conducted. The recovery rates observed were as follows: 88.4-109.2% for wine, 89.9-107.8% for sparkling water, and 83.2-95.5% for sports drink. Furthermore, the coefficient of variation remained impressively low, less than 4.38% for wine, less than 2.07% for sparkling water, and less than 6.34% for sports drink. Importantly, the developed sensor exhibited no cross-reaction with tetrahydrocannabinol (THC). In conclusion, the proposed paper sensor, employing gold nanoparticles, offers a user-friendly and efficient approach for the precise, rapid, and dependable determination of CBD in products.
Collapse
Affiliation(s)
| | | | | | | | - Bei Fan
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.S.); (D.Z.); (R.T.); (L.L.)
| | - Fengzhong Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.S.); (D.Z.); (R.T.); (L.L.)
| |
Collapse
|
9
|
Song H, Khan M, Yu L, Wang Y, Lin JM, Hu Q. Construction of Liquid Crystal-Based Sensors Using Enzyme-Linked Dual-Functional Nucleic Acid on Magnetic Beads. Anal Chem 2023; 95:13385-13390. [PMID: 37622311 DOI: 10.1021/acs.analchem.3c03163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
The development of liquid crystal (LC)-based sensors with superior performances such as high portability, excellent stability, great convenience, and remarkable sensitivity is highly demanded. This work proposes a new strategy for constructing the LC-based sensor using enzyme-linked dual-functional nucleic acid (d-FNA) on magnetic beads (MBs). The detection of kanamycin (KA) is demonstrated as a model. Acetylcholinesterase (AChE) is assembled onto the KA aptamer-modified MBs with a d-FNA strand that consists of an AChE aptamer and the complementary sequence of a KA aptamer. As the specific recognition of KA by its aptamer triggers the release of AChE from the MBs, the myristoylcholine (Myr) solution after incubation with the MBs causes the black image of the LCs due to the formation of the Myr monolayer at the aqueous/LC interface. Otherwise, in the absence of KA, AChE is still decorated on the MBs and causes the hydrolysis of Myr. Therefore, a bright image of LCs is obtained. The detection of KA is successfully achieved with a lower detection limit of 48.1 pg/mL. In addition, a thin polydimethylsiloxane (PDMS) layer-coated glass and a portable optical device are used to improve the stability and portability of the LC-based sensor to advance potential commercial applications. Furthermore, the detection of KA in milk with a portable device is demonstrated, showing the potential of the proposed enzyme-linked LC-based sensor.
Collapse
Affiliation(s)
- Haoyang Song
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Mashooq Khan
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Li Yu
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, China
| | - Yunshan Wang
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qiongzheng Hu
- Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan 250014, China
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| |
Collapse
|
10
|
Zhou X, Li J, Hu Y, Wu Y, Wang Y, Ning G. A novel colorimetric assay for sensitive detection of kanamycin based on the aptamer-regulated peroxidase-mimicking activity of Co 3O 4 nanoparticles. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:2441-2447. [PMID: 37157837 DOI: 10.1039/d3ay00304c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Kanamycin is used widely in livestock farming due to its antimicrobial properties and low cost, but has led to antibiotic residues in food, which can damage human health. Therefore, there is an urgent need for convenient technology that can be used to detect kanamycin rapidly. We found that Co3O4 nanoparticles (NPs) possessed peroxidase-like activity that catalyzed the oxidation of 3,3',5,5'-tetramethylbenzidine to change color. Interestingly, a target-specific aptamer could regulate the catalytic activity of Co3O4 NPs and inhibit this effect through aptamer-target binding. On the basis of a colorimetric assay combined with an aptamer-regulatory mechanism, the linear range for quantitative detection of kanamycin was 0.1-30 μM, the minimum limit of detection was 44.2 nM, and the total time needed for detection was 55 min. Moreover, this "aptasensor" displayed excellent selectivity and could be applied to detect KAN in milk samples. Our sensor might have promising applications for kanamycin detection in animal husbandry and agricultural products.
Collapse
Affiliation(s)
- Xuan Zhou
- Hunan Provincial Key Laboratory for Forestry Biotechnology, International Cooperation Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, 410004, Changsha, China.
| | - Jiaxin Li
- Hunan Provincial Key Laboratory for Forestry Biotechnology, International Cooperation Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, 410004, Changsha, China.
| | - Yuda Hu
- Hunan Provincial Key Laboratory for Forestry Biotechnology, International Cooperation Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, 410004, Changsha, China.
| | - Yaohui Wu
- Hunan Provincial Key Laboratory for Forestry Biotechnology, International Cooperation Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, 410004, Changsha, China.
| | - Yonghong Wang
- Hunan Provincial Key Laboratory for Forestry Biotechnology, International Cooperation Base of Science and Technology Innovation on Forest Resource Biotechnology, Central South University of Forestry and Technology, 410004, Changsha, China.
| | - Ge Ning
- International Education Institute, Hunan University of Chinese Medicine, 410208, Changsha, China.
| |
Collapse
|