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Chen Z, Li H, Xie M, Zhao F, Han S. Label-Free Electrochemical Aptasensor for Sensitive Detection of Malachite Green Based on AuNPs/MWCNTs@TiO 2 Nanocomposites. Int J Mol Sci 2023; 24:10594. [PMID: 37445772 DOI: 10.3390/ijms241310594] [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: 05/22/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
This study proposes a label-free aptamer biosensor for the sensitive detection of malachite green(MG) using gold nanoparticles/multi-walled carbon nanotubes @ titanium dioxide(AuNPs/MWCNTs@TiO2). The nanocomposite provides a large surface area and good electrical conductivity, improving current transfer and acting as a platform for aptamer immobilization. The aptamer and the complementary chain(cDNA) are paired by base complementary to form the recognition element and fixed on the AuNPs by sulfhydryl group, which was modified on the cDNA. Since DNA is negatively charged, the redox probe in the electrolyte is less exposed to the electrode surface under the repulsion of the negative charge, resulting in a low-electrical signal level. When MG is present, the aptamer is detached from the cDNA and binds to MG, the DNA on the electrode surface is reduced, and the rejection of the redox probe is weakened, which leads to an enhanced electrical signal and enables the detection of MG concentration by measuring the change in the electrical signal. Under the best experimental conditions, the sensor demonstrates a good linear relationship for the detection of MG from 0.01 to 1000 ng/mL, the limit of detection (LOD)is 8.68 pg/mL. This sensor is stable, specific, and reproducible, allowing for the detection of various small-molecule pollutants by changing the aptamer, providing an effective method for detecting small-molecule pollutants.
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Affiliation(s)
- Zanlin Chen
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Haiming Li
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Miaojia Xie
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Fengguang Zhao
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
- School of Light Industry and Engineering, South China University of Technology, Guangzhou 510006, China
| | - Shuangyan Han
- Guangdong Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
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Douaki A, Garoli D, Inam AKMS, Angeli MAC, Cantarella G, Rocchia W, Wang J, Petti L, Lugli P. Smart Approach for the Design of Highly Selective Aptamer-Based Biosensors. BIOSENSORS 2022; 12:bios12080574. [PMID: 36004970 PMCID: PMC9405846 DOI: 10.3390/bios12080574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 11/30/2022]
Abstract
Aptamers are chemically synthesized single-stranded DNA or RNA oligonucleotides widely used nowadays in sensors and nanoscale devices as highly sensitive biorecognition elements. With proper design, aptamers are able to bind to a specific target molecule with high selectivity. To date, the systematic evolution of ligands by exponential enrichment (SELEX) process is employed to isolate aptamers. Nevertheless, this method requires complex and time-consuming procedures. In silico methods comprising machine learning models have been recently proposed to reduce the time and cost of aptamer design. In this work, we present a new in silico approach allowing the generation of highly sensitive and selective RNA aptamers towards a specific target, here represented by ammonium dissolved in water. By using machine learning and bioinformatics tools, a rational design of aptamers is demonstrated. This “smart” SELEX method is experimentally proved by choosing the best five aptamer candidates obtained from the design process and applying them as functional elements in an electrochemical sensor to detect, as the target molecule, ammonium at different concentrations. We observed that the use of five different aptamers leads to a significant difference in the sensor’s response. This can be explained by considering the aptamers’ conformational change due to their interaction with the target molecule. We studied these conformational changes using a molecular dynamics simulation and suggested a possible explanation of the experimental observations. Finally, electrochemical measurements exposing the same sensors to different molecules were used to confirm the high selectivity of the designed aptamers. The proposed in silico SELEX approach can potentially reduce the cost and the time needed to identify the aptamers and potentially be applied to any target molecule.
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Affiliation(s)
- Ali Douaki
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 1, 39100 Bolzano, Italy; (A.K.M.S.I.); (M.A.C.A.); (G.C.); (L.P.)
- Correspondence: (A.D.); (P.L.)
| | - Denis Garoli
- Istituto Italiano di Tecnologia, Via Morego, 30, 16163 Genova, Italy;
| | - A. K. M. Sarwar Inam
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 1, 39100 Bolzano, Italy; (A.K.M.S.I.); (M.A.C.A.); (G.C.); (L.P.)
| | - Martina Aurora Costa Angeli
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 1, 39100 Bolzano, Italy; (A.K.M.S.I.); (M.A.C.A.); (G.C.); (L.P.)
| | - Giuseppe Cantarella
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 1, 39100 Bolzano, Italy; (A.K.M.S.I.); (M.A.C.A.); (G.C.); (L.P.)
| | - Walter Rocchia
- CONCEPT Lab, Istituto Italiano di Tecnologia, Via Enrico Melen 83, 16152 Genova, Italy;
| | - Jiahai Wang
- School of Mechanical and Electrical Engineering, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China;
| | - Luisa Petti
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 1, 39100 Bolzano, Italy; (A.K.M.S.I.); (M.A.C.A.); (G.C.); (L.P.)
| | - Paolo Lugli
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 1, 39100 Bolzano, Italy; (A.K.M.S.I.); (M.A.C.A.); (G.C.); (L.P.)
- Correspondence: (A.D.); (P.L.)
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Wang J, Zhao C, Hong C, Lin Z, Huang Z. Rapid detection of malachite green in fish and water based on the peroxidase-like activity of Fe3O4NPs enhanced with aptamer. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.104162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Lee S, Kim H, Kim HY, Park HG. Target-induced transcription of a light-up RNA aptamer to construct a novel method for alkaline phosphatase assay. Chem Commun (Camb) 2021; 57:12341-12344. [PMID: 34735558 DOI: 10.1039/d1cc04787f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein developed a novel method for alkaline phosphatase (ALP) assay based on the target-induced transcription of a light-up RNA aptamer, consequently producing a highly enhanced fluorescence signal upon specifically binding to the corresponding dye. Using this strategy, we successfully determined the ALP activity down to 0.018 U L-1 (dynamic linear range of 0.04-4 U L-1) with excellent selectivity.
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Affiliation(s)
- Seoyoung Lee
- Department of Chemical and Biomolecular Engineering (BK21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Hansol Kim
- Department of Chemical and Biomolecular Engineering (BK21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Hyo Yong Kim
- Department of Chemical and Biomolecular Engineering (BK21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK21 four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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Singh R, Singh RK. Detection of Malachite Green in Water Using Edge Excited Label Free Fluorescent Probe NCQDs. J Fluoresc 2020; 30:1281-1285. [PMID: 32809113 DOI: 10.1007/s10895-020-02603-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 08/04/2020] [Indexed: 11/24/2022]
Abstract
The fluorescent properties of nitrogen doped carbon quantum dots (NCQDs) prepared through microwave assisted green method has been used as label free fluorescent probe for selective and sensitive detection of malachite green (MG) in water. The optical responses revealed that the NCQDs are highly stable and have good fluorescent quantum yield. The NCQDs were used to detect the Malchite Green in Mili Q water. Reduction in the fluorescence response was monitored in the range 17.12-128.43 μM of MG dissolved in Mili Q water. Linear response was observed in the range, 10-80 μM. The calculated value of limit of detection is 5.16 μM and the sensitivity is (0.03536 ± 0.00001) μM-1. The future application of this work is that it can be employed to detect MG in the tap water and other natural sources of water.
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Affiliation(s)
- Ranjana Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
| | - Ranjan K Singh
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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Shen T, Zhou T, Wan Y, Su Y. High-Precision and Low-Cost Wireless 16-Channel Measurement System for Malachite Green Detection. MICROMACHINES 2018; 9:mi9120646. [PMID: 30544505 PMCID: PMC6316330 DOI: 10.3390/mi9120646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 11/30/2018] [Accepted: 12/04/2018] [Indexed: 11/30/2022]
Abstract
Focusing on the issue of the malachite green traditional test methods such as large volume, high cost and high complex, this paper proposed a novel multi-channel electrochemical malachite green detection system. Specific recognition properties of malachite green DNA adapter is employed to realize accurate sensing of concentration of malachite green, which can achieve precise detection of malachite green concentration with low noise and high precision. The maximum measurement capability of multi-channel acquisition system is 16 samples in a batch. According to the experimental results, malachite green could be detected quantitatively in the range from 10−3 μg/mL to 10 μg/mL, which performs well in the test of malachite green residues in aquatic product transportation.
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Affiliation(s)
- Tong Shen
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Tong Zhou
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Ying Wan
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yan Su
- School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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Li F, Yu Z, Han X, Lai RY. Electrochemical aptamer-based sensors for food and water analysis: A review. Anal Chim Acta 2018; 1051:1-23. [PMID: 30661605 DOI: 10.1016/j.aca.2018.10.058] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 10/03/2018] [Accepted: 10/23/2018] [Indexed: 02/07/2023]
Abstract
Global food and water safety issues have prompted the development of highly sensitive, specific, and fast analytical techniques for food and water analysis. The electrochemical aptamer-based detection platform (E-aptasensor) is one of the more promising detection techniques because of its unique combination of advantages that renders these sensors ideal for detection of a wide range of target analytes. Recent research results have further demonstrated that this technique has potential for real world analysis of food and water contaminants. This review summaries the recently developed E-aptasensors for detection of analytes related to food and water safety, including bacteria, mycotoxins, algal toxins, viruses, drugs, pesticides, and metal ions. Ten different electroanalytical techniques and one opto-electroanalytical technique commonly employed with these sensors are also described. In addition to highlighting several novel sensor designs, this review also describes the strengths, limitations, and current challenges this technology faces, and future development trend.
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Affiliation(s)
- Fengqin Li
- Post-Doctoral Research Center of Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China; College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin, 150040, China
| | - Zhigang Yu
- Post-Doctoral Research Center of Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China; College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin, 150040, China.
| | - Xianda Han
- Post-Doctoral Research Center of Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China; College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin, 150040, China
| | - Rebecca Y Lai
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE, 68588-0304, United States.
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Vlăsceanu GM, Amărandi RM, Ioniță M, Tite T, Iovu H, Pilan L, Burns JS. Versatile graphene biosensors for enhancing human cell therapy. Biosens Bioelectron 2018; 117:283-302. [DOI: 10.1016/j.bios.2018.04.053] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/18/2018] [Accepted: 04/25/2018] [Indexed: 01/04/2023]
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10
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Zhou X, Zhang J, Pan Z, Li D. Review of Methods for the Detection and Determination of Malachite Green and Leuco-Malachite Green in Aquaculture. Crit Rev Anal Chem 2018; 49:1-20. [DOI: 10.1080/10408347.2018.1456314] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xinhui Zhou
- College of Information and Electrical Engineering, China Agricultural University, Beijing, China
- China-EU Center for Information and Communication Technologies in Agriculture, China Agricultural University, Beijing, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture, China Agricultural University, Beijing, China
- Beijing Engineering and Technology Research Center for Internet of Things in Agriculture, China Agricultural University, Beijing, China
| | - Jiaran Zhang
- College of Information and Electrical Engineering, China Agricultural University, Beijing, China
- China-EU Center for Information and Communication Technologies in Agriculture, China Agricultural University, Beijing, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture, China Agricultural University, Beijing, China
- Beijing Engineering and Technology Research Center for Internet of Things in Agriculture, China Agricultural University, Beijing, China
| | - Zhongli Pan
- Healthy Processed Foods Research Unit, USDA-ARS-WRRC Albany, California, USA
- Department of Biological and Agricultural Engineering, University of California, Davis, California, USA
| | - Daoliang Li
- College of Information and Electrical Engineering, China Agricultural University, Beijing, China
- China-EU Center for Information and Communication Technologies in Agriculture, China Agricultural University, Beijing, China
- Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture, China Agricultural University, Beijing, China
- Beijing Engineering and Technology Research Center for Internet of Things in Agriculture, China Agricultural University, Beijing, China
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Loganathan C, John SA. Naked eye and spectrophotometric detection of chromogenic insecticide in aquaculture using amine functionalized gold nanoparticles in the presence of major interferents. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:837-842. [PMID: 27816882 DOI: 10.1016/j.saa.2016.10.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 10/16/2016] [Indexed: 06/06/2023]
Abstract
Detection of a chromogenic insecticide, malachite green (MG) using 3,5-diamino-1,2,4-triazole capped gold nanoparticles (DAT-AuNPs) by both naked eye and spectrophotometry was described in this paper. The DAT-AuNPs were prepared by wet chemical method and show absorption maximum at 518nm. The zeta potential of DAT-AuNPs was found to be -39.9mV, suggesting that one of the amine groups of DAT adsorbed on the surface of AuNPs and the other amine group stabilizes the AuNPs from aggregation. The wine red color DAT-AuNPs changes to violet while adding 25μM MG whereas the absorption band at 518nm was increased and shifted towards longer wavelength. However, addition of 70μM MG leads to the aggregation of DAT-AuNPs. This is due to strong electrostatic interaction between ammonium ion of MG and the free amine group of DAT. Based on the color change and shift in SPR band, 25 and 5μM MG can be easily detected by naked eye and spectrophotometry. The DAT-AuNPs show high selectivity towards MG even in the presence of 5000-fold higher concentrations of common interferents. The practical application was successfully demonstrated by determining MG in fish farm water.
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Affiliation(s)
- C Loganathan
- Centre for Nanoscience and Nanotechnology, Department of Chemistry, Gandhigram Rural Institute, Gandhigram - 624 302, Dindigul, Tamilnadu, India
| | - S Abraham John
- Centre for Nanoscience and Nanotechnology, Department of Chemistry, Gandhigram Rural Institute, Gandhigram - 624 302, Dindigul, Tamilnadu, India.
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Dua P, Ren S, Lee SW, Kim JK, Shin HS, Jeong OKC, Kim S, Lee DK. Cell-SELEX Based Identification of an RNA Aptamer for Escherichia coli and Its Use in Various Detection Formats. Mol Cells 2016; 39:807-813. [PMID: 27871171 PMCID: PMC5125936 DOI: 10.14348/molcells.2016.0167] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 10/01/2016] [Accepted: 10/18/2016] [Indexed: 02/02/2023] Open
Abstract
Escherichia coli are important indicator organisms, used routinely for the monitoring of water and food safety. For quick, sensitive and real-time detection of E. coli we developed a 2'F modified RNA aptamer Ec3, by Cell-SELEX. The 31 nucleotide truncated Ec3 demonstrated improved binding and low nano-molar affinity to E. coli. The aptamer developed by us out-performs the commercial antibody and aptamer used for E. coli detection. Ec3(31) aptamer based E. coli detection was done using three different detection formats and the assay sensitivities were determined. Conventional Ec3(31)-biotin-streptavidin magnetic separation could detect E. coli with a limit of detection of 1.3 × 106 CFU/ml. Although, optical analytic technique, biolayer interferometry, did not improve the sensitivity of detection for whole cells, a very significant improvement in the detection was seen with the E. coli cell lysate (5 × 104 CFU/ml). Finally we developed Electrochemical Impedance Spectroscopy (EIS) gap capacitance biosensor that has detection limits of 2 × 104 CFU/mL of E. coli cells, without any labeling and signal amplification techniques. We believe that our developed method can step towards more complex and real sample application.
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Affiliation(s)
- Pooja Dua
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
| | - Shuo Ren
- Department of Bioengineering, Dongguk University, Seoul 04620,
Korea
| | - Sang Wook Lee
- Department of Bioengineering, Dongguk University, Seoul 04620,
Korea
| | - Joon-Ki Kim
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
| | - Hye-su Shin
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
| | - OK-Chan Jeong
- Department of Biomedical Engineering and School of Mechanical Engineering, Inje University, Gimhae 50834,
Korea
| | - Soyoun Kim
- Department of Bioengineering, Dongguk University, Seoul 04620,
Korea
| | - Dong-Ki Lee
- Global Research Laboratory (GRL) for RNAi Medicine, Department of Chemistry, Sungkyunkwan University (SKKU), Suwon 16419,
Korea
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Feng X, Gan N, Zhang H, Yan Q, Li T, Cao Y, Hu F, Yu H, Jiang Q. A novel "dual-potential" electrochemiluminescence aptasensor array using CdS quantum dots and luminol-gold nanoparticles as labels for simultaneous detection of malachite green and chloramphenicol. Biosens Bioelectron 2015; 74:587-93. [PMID: 26190470 DOI: 10.1016/j.bios.2015.06.048] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 06/16/2015] [Accepted: 06/19/2015] [Indexed: 01/08/2023]
Abstract
A novel type of "dual-potential" electrochemiluminescence (ECL) aptasensor array was fabricated on a homemade screen-printed carbon electrode (SPCE) for simultaneous detection of malachite green (MG) and chloramphenicol (CAP) in one single assay. The SPCE substrate consisted of a common Ag/AgCl reference electrode, carbon counter electrode and two carbon working electrodes (WE1 and WE2). In the system, CdS quantum dots (QDs) were modified on WE1 as cathode ECL emitters and luminol-gold nanoparticles (L-Au NPs) were modified on WE2 as anode ECL emitters. Then the MG aptamer complementary strand (MG cDNA) and CAP aptamer complementary strand (CAP cDNA) were attached on CdS QDs and L-Au NPs, respectively. The cDNA would hybridize with corresponding aptamer that was respectively tagged with cyanine dye (Cy5) (as quenchers of CdS QDs) and chlorogenic acid (CA) (as quenchers of l-Au NPs) using poly(ethylenimine) (PEI) as a bridging agent. PEI could lead to a large number of quenchers on the aptamer, which increased the quenching efficiency. Upon MG and CAP adding, the targets could induce strand release due to the highly affinity of analytes toward aptamers. Meanwhile, it could release the Cy5 and CA, which recovered cathode ECL of CdS QDs and anode ECL of L-Au NPs simultaneously. This "dual-potential" ECL strategy could be used to detect MG and CAP with the linear ranges of 0.1-100 nM and 0.2-150 nM, with detection limits of 0.03 nM and 0.07 nM (at 3sB), respectively. More importantly, this designed method was successfully applied to determine MG and CAP in real fish samples and held great potential in the food analysis.
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Affiliation(s)
- Xiaobin Feng
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China
| | - Ning Gan
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China.
| | - Huairong Zhang
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China; School of Chemistry and Chemical Engineering, Linyi University, Linyi 276005, PR China
| | - Qing Yan
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China
| | - Tianhua Li
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China
| | - Yuting Cao
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, PR China
| | - Futao Hu
- Faculty of Marine, Ningbo University, Ningbo 315211, PR China
| | - Hongwei Yu
- Faculty of Marine, Ningbo University, Ningbo 315211, PR China
| | - Qianli Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, PR China
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Salt-Assisted Graphene Oxide Dispersive Solid Phase Microextraction for Sensitive Detection of Malachite Green and Crystal Violet by HPLC. Chromatographia 2015. [DOI: 10.1007/s10337-015-2913-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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