1
|
Campagnol D, Karimian N, Paladin D, Rizzolio F, Ugo P. Molecularly imprinted electrochemical sensor for the ultrasensitive detection of cytochrome c. Bioelectrochemistry 2022; 148:108269. [PMID: 36179393 DOI: 10.1016/j.bioelechem.2022.108269] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 11/02/2022]
Abstract
Cytochrome c (Cyt c) is an important biomarker for the early stage of apoptosis that plays a role in the diagnosis and therapy of several diseases including cancer. Here, an electrochemical sensor based on molecularly imprinted polymer (MIP) for the ultrasensitive detection of Cyt c is studied. It is prepared by electropolymerization of o-phenylenediamine in the presence of Cyt c as template, followed by solvent extraction, resulting in the formation of Cyt c recognition sites. The MIP is characterised by cyclic voltammetry and differential pulse voltammetry, using ferrocenecarboxylic acid as redox probe. Voltammetric data indicates that the MIP-sensor behaves as an electrode with partially blocked surface. The partition isotherm obtained fits the Langmuir model, indicating a high affinity for Cyt c, with an association constant Ka = 5 × 10 11 M-1. DPV measurements allow to achieve extremely high analytical sensitivity and low detection limit, in the femtomolar range, with negligible unspecific adsorption. Satisfactory analytical recovery tests performed in the presence of possible interfering proteins and in diluted human serum confirmed the selectivity of the MIP-sensor as well as its potential applicability for real samples analysis.
Collapse
Affiliation(s)
- Davide Campagnol
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, via Torino 155, 30172 Venice, Italy
| | - Najmeh Karimian
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, via Torino 155, 30172 Venice, Italy.
| | - Dino Paladin
- Dott. Dino Paladin, bic incubatori Fvg, via Flavia 23/1, 34148 Trieste, Italy
| | - Flavio Rizzolio
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, via Torino 155, 30172 Venice, Italy; Pathology Unit, Centro di Riferimento Oncologico di Aviano (C.R.O.) IRCCS, 33081 Aviano, Italy
| | - Paolo Ugo
- Department of Molecular Sciences and Nanosystems, University Ca' Foscari of Venice, via Torino 155, 30172 Venice, Italy.
| |
Collapse
|
2
|
Laser-Induced Graphene Electrodes Modified with a Molecularly Imprinted Polymer for Detection of Tetracycline in Milk and Meat. SENSORS 2021; 22:s22010269. [PMID: 35009811 PMCID: PMC8749683 DOI: 10.3390/s22010269] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/31/2022]
Abstract
Tetracycline (TC) is a widely known antibiotic used worldwide to treat animals. Its residues in animal-origin foods cause adverse health effects to consumers. Low-cost and real-time measuring systems of TC in food samples are, therefore, extremely needed. In this work, a three-electrode sensitive and label-free sensor was developed to detect TC residues from milk and meat extract samples, using CO2 laser-induced graphene (LIG) electrodes modified with gold nanoparticles (AuNPs) and a molecularly imprinted polymer (MIP) used as a synthetic biorecognition element. LIG was patterned on a polyimide (PI) substrate, reaching a minimum sheet resistance (Rsh) of 17.27 ± 1.04 Ω/sq. The o-phenylenediamine (oPD) monomer and TC template were electropolymerized on the surface of the LIG working electrode to form the MIP. Surface morphology and electrochemical techniques were used to characterize the formation of LIG and to confirm each modification step. The sensitivity of the sensor was evaluated by differential pulse voltammetry (DPV), leading to a limit of detection (LOD) of 0.32 nM, 0.85 nM, and 0.80 nM in buffer, milk, and meat extract samples, respectively, with a working range of 5 nM to 500 nM and a linear response range between 10 nM to 300 nM. The sensor showed good LOD (0.32 nM), reproducibility, and stability, and it can be used as an alternative system to detect TC from animal-origin food products.
Collapse
|
3
|
Liu G, Li S, Jiang Z, Li J. A versatile and ultrasensitive molecularly imprinted electrochemiluminescence sensor with HRP-encapsulated liposome labeled by light-triggered click reaction for pesticide residues. Mikrochim Acta 2021; 189:33. [PMID: 34935073 DOI: 10.1007/s00604-021-05133-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/07/2021] [Indexed: 10/19/2022]
Abstract
A novel approach for trace detection of fipronil with a molecularly imprinted electrochemiluminescence sensor (MIECLS) is proposed. The sensitivity is significantly improved via signal amplification of the enzymatic reaction of horseradish peroxidase (HRP) released from encapsulated liposomes which linked onto the template molecules after rebinding. The molecularly imprinted polymer membrane was prepared through the electropolymerization of monomers with fipronil as a template. After the elution of the template molecules, the analyte fipronil was reabsorbed into the cavities. HRP-encapsulated liposomes were linked to the target molecules by light-triggered click reaction. The higher the concentration of the target was, the more HRP-encapsulated liposomes were present on the molecularly imprinted polymer (MIP) sensor. Then, HRP was liberated from liposomes, and the catalytic degradation of hydrogen peroxide (H2O2) by HRP occurs, which changed the electrochemiluminescence intensity of luminol significantly. The change of the ∆ECL intensity was linearly proportional to the logarithm of the fipronil concentration ranging from 1.00 × 10-14 to 1.00 × 10-9 mol/L, and the detection limit was 7.77 × 10-16 mol/L. The recoveries obtained ranged from 95.7 to 105.8% with RSD < 5%. The sensitivity of the detection was significantly improved, and the analysis process was simplified in that the incubation step required in the conventional method was avoided. The sensor proposed provides a feasible platform for ultra-trace amount determination.
Collapse
Affiliation(s)
- Guangyan Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi, 541004, China.,Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, 541004, China
| | - Shiyu Li
- Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, 541004, China
| | - Zejun Jiang
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi, 541004, China
| | - Jianping Li
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, Guangxi, 541004, China. .,Guangxi Key Laboratory of Electrochemical and Magneto-chemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, 541004, China.
| |
Collapse
|
4
|
Zhang Y, Liu Z, Wang Y, Kuang X, Ma H, Wei Q. Directly assembled electrochemical sensor by combining self-supported CoN nanoarray platform grown on carbon cloth with molecularly imprinted polymers for the detection of Tylosin. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122778. [PMID: 32470771 DOI: 10.1016/j.jhazmat.2020.122778] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/14/2020] [Accepted: 04/16/2020] [Indexed: 05/23/2023]
Abstract
Molecularly imprinted polymers (MIPs) based on electrochemical sensors (MIP-EC sensors) have obtained ideal achievements in recent years. However, some challenges are still need to be addressed, such as adjustable preparation, unstable sensing interface and great signal-to-noise ratio. Here, based on the ingenious combination of the MIP and the self-supported CoN nanowire arrays grown on carbon cloth (CoN NWs/CC), a robust MIP-EC sensor was developed, in which the MIP film was uniformly coated on the CoN NWs/CC via a bulk polymerization crosslinking process. Especially, CoN NWs/CC were prepared via in-situ transformation of their oxide precursors and then directly as a candidate of EC electrode. Under the optimal conditions, the MIP-EC sensor can detect Tylosin (TS) in the concentration range from 8.6 × 10-11 to 6.7 × 10-5 mol L-1, and the low detection limit (LOD) is 5.5 × 10-12 mol L-1 (S/N = 3). Furthermore, the MIP-EC sensor showed high selectivity, reproducibility and stability. The practicability of the MIP-EC sensor was tested in the actual samples of surface water and soil with the comparison of the traditional ELISA method. The developed MIP-EC sensor with simple and fabrication process can provide a versatile and reliable method, which has great potential application value for the detection of small hazardous molecules.
Collapse
Affiliation(s)
- Yong Zhang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| | - Zhaoyi Liu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yaoguang Wang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, PR China
| | - Xuan Kuang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Hongmin Ma
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| |
Collapse
|
5
|
Benachio I, Lobato A, Gonçalves LM. Employing molecularly imprinted polymers in the development of electroanalytical methodologies for antibiotic determination. J Mol Recognit 2020; 34:e2878. [PMID: 33022110 DOI: 10.1002/jmr.2878] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/11/2020] [Accepted: 09/21/2020] [Indexed: 12/25/2022]
Abstract
Antibiotics, although being amazing compounds, need to be monitored in the environment and foodstuff. This is primarily to prevent the development of antibiotic resistance that may make them ineffective. Unsurprisingly, advances in analyticalsciences that can improve their determination are appreciated. Electrochemical techniques are known for their simplicity, sensitivity, portability and low-cost; however, they are often not selective enough without recurring to a discriminating element like an antibody. Molecular imprinting technology aims to create artificial tissues mimicking antibodies named molecularly imprinted polymers (MIPs), these retain the advantages of selectivity but without the typical disadvantages of biological material, like limited shelf-life and high cost. This manuscript aims to review all analytical methodologies for antibiotics, using MIPs, where the detection technique is electrochemical, like differential pulse voltammetry (DPV), square-wave voltammetry (SWV) or electrochemical impedance spectroscopy (EIS). MIPs developed by electropolymerization (e-MIPs) were applied in about 60 publications and patents found in the bibliographic search, while MIPs developed by other polymerization techniques, like temperature assisted ("bulk") or photopolymerization, were limited to around 40. Published works covered the electroanalysis of a wide range of different antibiotics (β-lactams, tetracyclines, quinolones, macrolides, aminoglycosides, among other), in a wide range of matrices (food, environmental and biological).
Collapse
Affiliation(s)
- Ingrid Benachio
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Alnilan Lobato
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Luís Moreira Gonçalves
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo (USP), São Paulo, Brazil
| |
Collapse
|
6
|
Yarman A, Scheller FW. How Reliable Is the Electrochemical Readout of MIP Sensors? SENSORS (BASEL, SWITZERLAND) 2020; 20:E2677. [PMID: 32397160 PMCID: PMC7248831 DOI: 10.3390/s20092677] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/01/2020] [Accepted: 05/06/2020] [Indexed: 01/15/2023]
Abstract
Electrochemical methods offer the simple characterization of the synthesis of molecularly imprinted polymers (MIPs) and the readouts of target binding. The binding of electroinactive analytes can be detected indirectly by their modulating effect on the diffusional permeability of a redox marker through thin MIP films. However, this process generates an overall signal, which may include nonspecific interactions with the nonimprinted surface and adsorption at the electrode surface in addition to (specific) binding to the cavities. Redox-active low-molecular-weight targets and metalloproteins enable a more specific direct quantification of their binding to MIPs by measuring the faradaic current. The in situ characterization of enzymes, MIP-based mimics of redox enzymes or enzyme-labeled targets, is based on the indication of an electroactive product. This approach allows the determination of both the activity of the bio(mimetic) catalyst and of the substrate concentration.
Collapse
Affiliation(s)
- Aysu Yarman
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
| | - Frieder W. Scheller
- Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam, Germany
| |
Collapse
|
7
|
A Novel Electrochemical Sensor Based on Electropolymerized Ion Imprinted PoPD/ERGO Composite for Trace Cd(II) Determination in Water. SENSORS 2020; 20:s20041004. [PMID: 32069908 PMCID: PMC7070618 DOI: 10.3390/s20041004] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/25/2020] [Accepted: 02/05/2020] [Indexed: 12/18/2022]
Abstract
A novel electrochemical sensor based on electropolymerized ion imprinted poly (o-phenylenediamine) PoPD/electrochemical reduced graphene (ERGO) composite on glass carbon electrode (GCE) was fabricated for selective and sensitive determination of trace Cd(II) in water. ERGO was first deposited on the surface of GCE by electrochemical cyclic voltammetry (CV) scanning to enhance the electron transport activity at electrode surface. The ion imprinted polymer (IIP) of imprinted PoPD was then in situ electropolymerized on ERGO via CV scanning with oPD as functional monomer and Cd(II) ions as template, following removal of the template using electrochemical peroxidation method. The obtained imprinted PoPD/RERGO composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray energy spectroscopy (EDS) for the observation of their morphologies and components. The electrochemical behavior of the imprinted PoPD/ERGO/GCE was performed by CV and SWASV. The fabricated sensor of the imprinted PoPD/ERGO/GCE showed a good selectivity toward target Cd(II) ions in the presence of other heavy metal ions. Under the optimized experimental conditions, the sensor exhibited a good linear relationship between SWASV stripping peak values and Cd(II) concentration in the range of 1 to 50 ng/mL, with the limit of detection as 0.13 ng/mL (S/N = 3). The proposed electrochemical sensor of imprinted PoPD/ERGO/GCE was successfully applied for trace Cd(II) determination in real water samples.
Collapse
|
8
|
Yang B, Fu C, Li J, Xu G. Frontiers in highly sensitive molecularly imprinted electrochemical sensors: Challenges and strategies. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.04.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
9
|
Karimian N, Stortini AM, Moretto LM, Costantino C, Bogialli S, Ugo P. Electrochemosensor for Trace Analysis of Perfluorooctanesulfonate in Water Based on a Molecularly Imprinted Poly( o-phenylenediamine) Polymer. ACS Sens 2018; 3:1291-1298. [PMID: 29911865 DOI: 10.1021/acssensors.8b00154] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This work is aimed at developing an electrochemical sensor for the sensitive and selective detection of trace levels of perfluorooctanesulfonate (PFOS) in water. Contamination of waters by perfluorinated alkyl substances (PFAS) is a problem of global concern due to their suspected toxicity and ability to bioaccumulate. PFOS is the perfluorinated compound of major concern, as it has the lowest suggested control concentrations. The sensor reported here is based on a gold electrode modified with a thin coating of a molecularly imprinted polymer (MIP), prepared by anodic electropolymerization of o-phenylenediamine (o-PD) in the presence of PFOS as the template. Activation of the sensor is achieved by template removal with suitable a solvent mixture. Voltammetry, a quartz crystal microbalance, scanning electron microscopy and elemental analysis were used to monitor the electropolymerization process, template removal, and binding of the analyte. Ferrocenecarboxylic acid (FcCOOH) has been exploited as an electrochemical probe able to generate analytically useful voltammetric signals by competing for the binding sites with PFOS, as the latter is not electroactive. The sensor has a low detection limit (0.04 nM), a satisfactory selectivity, and is reproducible and repeatable, giving analytical results in good agreement with those obtained by HPLC-MS/MS analyses.
Collapse
Affiliation(s)
- Najmeh Karimian
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
| | - Angela M. Stortini
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
| | - Ligia M. Moretto
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
| | - Claudio Costantino
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
| | - Sara Bogialli
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, 35131 Padova, Italy
| | - Paolo Ugo
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, via Torino 155, 30172 Venezia Mestre, Italy
| |
Collapse
|
10
|
Komiyama M, Mori T, Ariga K. Molecular Imprinting: Materials Nanoarchitectonics with Molecular Information. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20180084] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Makoto Komiyama
- WPI-MANA, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8577, Japan
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, P. R. China
| | - Taizo Mori
- WPI-MANA, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Katsuhiko Ariga
- WPI-MANA, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| |
Collapse
|
11
|
Wang Q, Li S, Li J. A molecularly imprinted sensor with enzymatic enhancement of electrochemiluminescence of quantum dots for ultratrace clopyralid determination. Anal Bioanal Chem 2018; 410:5165-5172. [PMID: 29922862 DOI: 10.1007/s00216-018-1170-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/28/2018] [Accepted: 05/28/2018] [Indexed: 10/28/2022]
Abstract
A new molecularly imprinted polymer electrochemiluminescence (ECL) sensor was developed for the detection of clopyralid (CPD) based on enzyme-biocatalyzed amplification. CdTe quantum dots were immobilized on the surface of an electrode by reaction with p-aminothiophenol preadsorbed on the electrode. Then a molecularly imprinted film was formed by electrochemical polymerization of o-phenylenediamine in the presence of CPD on the CdTe-modified gold electrode. During the analytical cycle, horseradish peroxidase (HRP)-labeled CPD was replaced by CPD in the sample. The amount of HRP on the molecularly imprinted polymer electrode decreased, and then less H2O2 was catalytically decomposed. Subsequently, the ECL intensity of the CdTe-H2O2 system was enhanced. There was a good linear relationship between ECL intensity and the concentration of CPD in the range from 2.0 × 10-11 to 2.5 × 10-10 mol/L and in the range from 2.5 × 10-10 to 3.5 × 10-8 mol/L. The detection limit was 4.1 × 10-12 mol/L. The sensor was applied to determine CPD in vegetable samples. Graphical abstract A molecularly imprinted electrochemiluminescence sensor was fabricated for ultratrace clopyralid determination. The sensitivity was significantly improved with the enhancement of the ECL intensity of quantum dot via the enzymatic reaction of HRP.
Collapse
Affiliation(s)
- Qingyu Wang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, Guangxi, China
| | - Shuhuai Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, Guangxi, China
| | - Jianping Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, Guangxi, China.
| |
Collapse
|
12
|
Mao Y, Wu Y, Nie Y, Wang J, Liu Y, Xu S, Luo X. A two-wavelength fluorescence recovery method for the simultaneous determination of aureomycin and oxytetracycline by using gold nanocrystals modified with serine and 11-mercaptoundecanoic acid. Mikrochim Acta 2018; 185:222. [DOI: 10.1007/s00604-018-2762-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 03/06/2018] [Indexed: 01/27/2023]
|
13
|
An Insulin Molecularly Imprinted Electrochemical Sensor Based on Epitope Imprinting. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1016/s1872-2040(17)61039-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
14
|
Tang Y, Gao J, Liu X, Gao X, Ma T, Lu X, Li J. Ultrasensitive detection of clenbuterol by a covalent imprinted polymer as a biomimetic antibody. Food Chem 2017; 228:62-69. [DOI: 10.1016/j.foodchem.2017.01.102] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 01/03/2017] [Accepted: 01/18/2017] [Indexed: 01/03/2023]
|
15
|
Li MX, Wang XH, Zhang LM, Wei XP. A high sensitive epitope imprinted electrochemical sensor for bovine serum albumin based on enzyme amplifying. Anal Biochem 2017; 530:68-74. [DOI: 10.1016/j.ab.2017.05.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/30/2017] [Accepted: 05/04/2017] [Indexed: 10/19/2022]
|
16
|
Liu Y, Zhu L, Hu Y, Peng X, Du J. A novel electrochemical sensor based on a molecularly imprinted polymer for the determination of epigallocatechin gallate. Food Chem 2017; 221:1128-1134. [DOI: 10.1016/j.foodchem.2016.11.047] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 01/10/2023]
|
17
|
|
18
|
Artificial Biosensors: How Can Molecular Imprinting Mimic Biorecognition? Trends Biotechnol 2016; 34:922-941. [DOI: 10.1016/j.tibtech.2016.05.011] [Citation(s) in RCA: 148] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 05/17/2016] [Accepted: 05/19/2016] [Indexed: 11/21/2022]
|
19
|
Liu S, Wang Y, Xu W, Leng X, Wang H, Guo Y, Huang J. A novel sandwich-type electrochemical aptasensor based on GR-3D Au and aptamer-AuNPs-HRP for sensitive detection of oxytetracycline. Biosens Bioelectron 2016; 88:181-187. [PMID: 27544787 DOI: 10.1016/j.bios.2016.08.019] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 08/04/2016] [Accepted: 08/05/2016] [Indexed: 12/21/2022]
Abstract
In this paper, a novel sandwich-type electrochemical aptasensor has been fabricated and applied for sensitive and selective detection of antibiotic oxytetracycline (OTC). This sensor was based on graphene-three dimensional nanostructure gold nanocomposite (GR-3D Au) and aptamer-AuNPs-horseradish peroxidase (aptamer-AuNPs-HRP) nanoprobes as signal amplification. Firstly, GR-3D Au film was modified on glassy carbon electrode only by one-step electrochemical coreduction with graphite oxide (GO) and HAuCl4 at cathodic potentials, which enhanced the electron transfer and loading capacity of biomolecules. Then the aptamer and HRP modified Au nanoparticles provide high affinity and ultrasensitive electrochemical probe with excellent specificity for OTC. Under the optimized conditions, the peak current was linearly proportional to the concentration of OTC in the range of 5×10-10-2×10-3gL-1, with a detection limit of 4.98×10-10gL-1. Additionally, this aptasensor had the advantages in high sensitivity, superb specificity and showed good recovery in synthetic samples. Hence, the developed sandwich-type electrochemical aptasensor might provide a useful and practical tool for OTC determination and related food safety analysis and clinical diagnosis.
Collapse
Affiliation(s)
- Su Liu
- College of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Yu Wang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, PR China.
| | - Wei Xu
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Xueqi Leng
- College of Resources and Environment, University of Jinan, Jinan 250022, PR China
| | - Hongzhi Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Yuna Guo
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Jiadong Huang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, PR China; Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, College of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| |
Collapse
|
20
|
Yuan F, Zhao H, Wang X, Quan X. Determination of Oxytetracycline by a Graphene—Gold Nanoparticle-Based Colorimetric Aptamer Sensor. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1187160] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Fang Yuan
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Huimin Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Xiaodan Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| | - Xie Quan
- Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian, China
| |
Collapse
|
21
|
Yarman A, Scheller FW. MIP-esterase/Tyrosinase Combinations for Paracetamol and Phenacetin. ELECTROANAL 2016. [DOI: 10.1002/elan.201600042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Aysu Yarman
- Institute for Biochemistry and Biology; University of Potsdam; Karl-Liebknecht Strasse 24-25 14476 Potsdam Germany
- Fraunhofer IZI-BB; Am Mühlenberg 13 14476 Potsdam Germany
| | - Frieder W. Scheller
- Institute for Biochemistry and Biology; University of Potsdam; Karl-Liebknecht Strasse 24-25 14476 Potsdam Germany
- Fraunhofer IZI-BB; Am Mühlenberg 13 14476 Potsdam Germany
| |
Collapse
|
22
|
WEI XP, LIANG SC, HUANG WG, LI JP. Study on Molecularly Imprinted Sensor Based on Photocurrent Response for Ni-complex. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1016/s1872-2040(16)60912-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
23
|
Ji S, Li N, Shen Y, Li Q, Qiao J, Li Z. Poly(amino acid)-based thermoresponsive molecularly imprinted magnetic nanoparticles for specific recognition and release of lysozyme. Anal Chim Acta 2016; 909:60-6. [DOI: 10.1016/j.aca.2016.01.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/14/2015] [Accepted: 01/02/2016] [Indexed: 12/16/2022]
|
24
|
Yang B, Li J, Zhang L, Xu G. A molecularly imprinted electrochemiluminescence sensor based on the mimetic enzyme catalytic effect for ultra-trace Ni2+ determination. Analyst 2016; 141:5822-5828. [DOI: 10.1039/c6an00926c] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The complex of Ni-DMG acts as the template molecule modified on the MIP electrode surface. As a mimetic enzyme, it catalyses the oxidation of luminol to enhance the ECL signal. The ECL intensities produced by the luminol-H2O2 ECL system provide the basis for Ni2+ determination.
Collapse
Affiliation(s)
- Bin Yang
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- PR China
| | - Jianping Li
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- PR China
| | - Lianming Zhang
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- PR China
| | - Guobao Xu
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- PR China
| |
Collapse
|
25
|
Novel dual ligand co-functionalized fluorescent gold nanoclusters as a versatile probe for sensitive analysis of Hg2+ and oxytetracycline. Anal Bioanal Chem 2015; 408:2955-62. [DOI: 10.1007/s00216-015-9175-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/20/2015] [Accepted: 11/05/2015] [Indexed: 12/11/2022]
|
26
|
Yan K, Liu Y, Yang Y, Zhang J. A Cathodic "Signal-off" Photoelectrochemical Aptasensor for Ultrasensitive and Selective Detection of Oxytetracycline. Anal Chem 2015; 87:12215-20. [PMID: 26551579 DOI: 10.1021/acs.analchem.5b03139] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel cathodic "signal-off" strategy was proposed for photoelectrochemical (PEC) aptasensing of oxytetracycline (OTC). The PEC sensor was constructed by employing a p-type semiconductor BiOI doped with graphene (G) as photoactive species and OTC-binding aptamer as a recognition element. The morphological structure and crystalline phases of obtained BiOI-G nanocomposites were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The UV-visible absorption spectroscopic analysis indicated that doping of BiOI with graphene improved the absorption of materials in the visible light region. Moreover, graphene could facilitate the electron transfer of BiOI modified electrode. As a result, the cathodic photocurrent response of BiOI under visible light irradiation was significantly promoted when a suitable amount of graphene was doped. When amine-functionalized OTC-binding aptamer was immobilized on the BiOI-G modified electrode, a cathodic PEC aptasensor was fabricated, which exhibited a declined photocurrent response to OTC. Under the optimized conditions, the photocurrent response of aptamer/BiOI-G/FTO was linearly proportional to the concentration of OTC ranging from 4.0 to 150 nM, with a detection limit (3S/N) of 0.9 nM. This novel PEC sensing strategy demonstrated an ultrasensitive method for OTC detection with high selectivity and good stability.
Collapse
Affiliation(s)
- Kai Yan
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Luoyu Road 1037, Wuhan 430074, P.R. China
| | - Yong Liu
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Luoyu Road 1037, Wuhan 430074, P.R. China
| | - Yaohua Yang
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Luoyu Road 1037, Wuhan 430074, P.R. China
| | - Jingdong Zhang
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology , Luoyu Road 1037, Wuhan 430074, P.R. China
| |
Collapse
|
27
|
A novel strategy to improve the sensitivity of antibiotics determination based on bioelectrocatalysis at molecularly imprinted polymer film electrodes. Biosens Bioelectron 2015; 73:214-220. [DOI: 10.1016/j.bios.2015.06.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 06/02/2015] [Accepted: 06/03/2015] [Indexed: 12/31/2022]
|
28
|
Li J, Zhang L, Wei G, Zhang Y, Zeng Y. Highly sensitive and doubly orientated selective molecularly imprinted electrochemical sensor for Cu2+. Biosens Bioelectron 2015; 69:316-20. [DOI: 10.1016/j.bios.2015.03.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 02/28/2015] [Accepted: 03/03/2015] [Indexed: 11/25/2022]
|
29
|
Florea A, Guo Z, Cristea C, Bessueille F, Vocanson F, Goutaland F, Dzyadevych S, Săndulescu R, Jaffrezic-Renault N. Anticancer drug detection using a highly sensitive molecularly imprinted electrochemical sensor based on an electropolymerized microporous metal organic framework. Talanta 2015; 138:71-76. [DOI: 10.1016/j.talanta.2015.01.013] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 01/06/2015] [Accepted: 01/09/2015] [Indexed: 10/24/2022]
|
30
|
Li J, Ma F, Wei X, Fu C, Pan H. A highly selective molecularly imprinted electrochemiluminescence sensor for ultra-trace beryllium detection. Anal Chim Acta 2015; 871:51-6. [DOI: 10.1016/j.aca.2015.02.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/10/2015] [Accepted: 02/11/2015] [Indexed: 10/24/2022]
|
31
|
Yarman A, Dechtrirat D, Bosserdt M, Jetzschmann KJ, Gajovic-Eichelmann N, Scheller FW. Cytochrome c-Derived Hybrid Systems Based on Moleculary Imprinted Polymers. ELECTROANAL 2015. [DOI: 10.1002/elan.201400592] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
32
|
Li S, Li J, Lin Q, Wei X. A molecularly imprinted sensor based on an electrochemiluminescent membrane for ultratrace doxycycline determination. Analyst 2015; 140:4702-7. [DOI: 10.1039/c5an00416k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new electrochemical luminescence sensor was developed based on a molecularly imprinted membrane prepared by electropolymerization of pyrogallol doped with alizarin red. The ECL signal was produced by the oxidation of the polypyrogallol polymer, which was then reacted with alizarin red, and enhanced by doxycycline molecules due to energy transfer.
Collapse
Affiliation(s)
- Shuhuai Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guangxi
- China
| | - Jianping Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guangxi
- China
| | - Qingyu Lin
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Xiaoping Wei
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guangxi
- China
| |
Collapse
|
33
|
Calixto CMF, Cavalheiro ÉTG. Determination of Tetracyclines in Bovine and Human Urine using a Graphite-Polyurethane Composite Electrode. ANAL LETT 2014. [DOI: 10.1080/00032719.2014.984194] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
34
|
Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
Collapse
|
35
|
Electrochemical sensor for determination of aflatoxin B1 based on multiwalled carbon nanotubes-supported Au/Pt bimetallic nanoparticles. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2506-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
36
|
Yakhkind MI, Tarantseva KR, Marynova MA, Storozhenko PA, Rasulov MM. Molecularly imprinted polymers: possible use for isolation of biosynthetic antibiotics. Russ Chem Bull 2014. [DOI: 10.1007/s11172-014-0548-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
37
|
The first electrochemical MIP sensor for tamoxifen. SENSORS 2014; 14:7647-54. [PMID: 24776936 PMCID: PMC4063000 DOI: 10.3390/s140507647] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/11/2014] [Accepted: 04/24/2014] [Indexed: 11/16/2022]
Abstract
We present an electrochemical MIP sensor for tamoxifen (TAM)—a nonsteroidal anti-estrogen—which is based on the electropolymerisation of an O-phenylenediamine–resorcinol mixture directly on the electrode surface in the presence of the template molecule. Up to now only “bulk” MIPs for TAM have been described in literature, which are applied for separation in chromatography columns. Electro-polymerisation of the monomers in the presence of TAM generated a film which completely suppressed the reduction of ferricyanide. Removal of the template gave a markedly increased ferricyanide signal, which was again suppressed after rebinding as expected for filling of the cavities by target binding. The decrease of the ferricyanide peak of the MIP electrode depended linearly on the TAM concentration between 1 and 100 nM. The TAM-imprinted electrode showed a 2.3 times higher recognition of the template molecule itself as compared to its metabolite 4-hydroxytamoxifen and no cross-reactivity with the anticancer drug doxorubucin was found. Measurements at +1.1 V caused a fouling of the electrode surface, whilst pretreatment of TAM with peroxide in presence of HRP generated an oxidation product which was reducible at 0 mV, thus circumventing the polymer formation and electrochemical interferences.
Collapse
|
38
|
Qiao J, Wang M, Yan H, Yang G. Dispersive solid-phase extraction based on magnetic dummy molecularly imprinted microspheres for selective screening of phthalates in plastic bottled beverages. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:2782-2789. [PMID: 24620789 DOI: 10.1021/jf4051705] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new magnetic dummy molecularly imprinted dispersive solid-phase extraction (MAG-MIM-dSPE) coupled with gas chromatography-FID was developed for selective determination of phthalates in plastic bottled beverages. The new magnetic dummy molecularly imprinted microspheres (MAG-MIM) using diisononyl phthalate as a template mimic were synthesized by coprecipitation coupled with aqueous suspension polymerization and were successfully applied as the adsorbents for MAG-MIM-dSPE to extract and isolate five phthalates from plastic bottled beverages. Validation experiments showed that the MAG-MIM-dSPE method had good linearity at 0.0040-0.40 μg/mL (0.9991-0.9998), good precision (3.1-6.9%), and high recovery (89.5-101.3%), and limits of detection were obtained in a range of 0.53-1.2 μg/L. The presented MAG-MIM-dSPE method combines the quick separation of magnetic particles, special selectivity of MIM, and high extraction efficiency of dSPE, which could potentially be applied to selective screening of phthalates in beverage products.
Collapse
Affiliation(s)
- Jindong Qiao
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education & Key Laboratory of Pharmaceutical Quality Control of Hebei Province & College of Pharmacy, Hebei University , Baoding, 071002, China
| | | | | | | |
Collapse
|
39
|
FU C, LI JP. A Molecular-imprinted Sensor for Trace Detection of Gibberellin Based on Ferrocenecarboxylic Acid Multiply Marked Dendrimer. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1016/s1872-2040(13)60718-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
40
|
Clopyralid detection by using a molecularly imprinted electrochemical luminescence sensor based on the “gate-controlled” effect. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2380-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
41
|
Xue X, Wei Q, Wu D, Li H, Zhang Y, Feng R, Du B. Determination of methyl parathion by a molecularly imprinted sensor based on nitrogen doped graphene sheets. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.11.075] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
42
|
Yao GH, Liang RP, Huang CF, Wang Y, Qiu JD. Surface plasmon resonance sensor based on magnetic molecularly imprinted polymers amplification for pesticide recognition. Anal Chem 2013; 85:11944-51. [PMID: 24261416 DOI: 10.1021/ac402848x] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We reported here a method to enhance detection sensitivity in surface plasmon resonance (SPR) spectroscopy integrated with a surface molecular imprinting recognition system and employing magnetic molecular imprinting polymer nanoparticles for amplifying SPR response. The proposed magnetic molecular imprinting polymer was designed by self-polymerization of dopamine on the Fe3O4 NPs surface in weak base aqueous solution in the presence of template chlorpyrifos (CPF). The imprinted Fe3O4@polydopamine nanoparticles (Fe3O4@PDA NPs) were characterized by Fourier transform infrared spectroscopy, UV-vis absorption spectroscopy, and transmission electron microscopy. The biosensor showed a good linear relationship between the SPR angle shift and the chlorpyrifos concentration over a range from 0.001 to 10 μM with a detection limit of 0.76 nM. A significant increase in sensitivity was therefore afforded through the use of imprinted Fe3O4@PDA NPs as an amplifier, and meanwhile, the imprinted Fe3O4@PDA NPs had an excellent recognition capacity to chlorpyrifos over other pesticides. The excellent sensitivity and selectivity and high stability of the designed biosensor make this magnetic imprinted Fe3O4@PDA NP an attractive recognition element for various SPR sensors for detecting pesticide residuals and other environmentally deleterious chemicals.
Collapse
Affiliation(s)
- Gui-Hong Yao
- Department of Chemistry, Nanchang University , Nanchang, Jiangxi 330031, P. R. China
| | | | | | | | | |
Collapse
|
43
|
|
44
|
FU C, LI JP. Application of Dendrimers in Analytical Chemistry. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2013. [DOI: 10.1016/s1872-2040(13)60692-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
45
|
Yarman A, Scheller FW. Coupling biocatalysis with molecular imprinting in a biomimetic sensor. Angew Chem Int Ed Engl 2013; 52:11521-5. [PMID: 24038983 DOI: 10.1002/anie.201305368] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Indexed: 11/11/2022]
Abstract
Make it simple: A molecularly imprinted electropolymer was combined with an enzyme in a catalytic biomimetic sensor that enabled interference-free detection of the drug aminopyrine (AP) at submicromolar concentrations in the presence of ascorbic acid and uric acid within 15 s. The sensor functioned by the peroxide-dependent conversion of AP in a layer above a product-imprinted electropolymer on an indicator electrode.
Collapse
Affiliation(s)
- Aysu Yarman
- Fraunhofer Institute for Biomedical Engineering, Am Mühlenberg 13, 14476 Potsdam (Germany); Institute of Biochemistry and Biology, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Potsdam (Germany)
| | | |
Collapse
|
46
|
Yarman A, Scheller FW. Coupling Biocatalysis with Molecular Imprinting in a Biomimetic Sensor. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305368] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
47
|
Wang X, Qin W. Tetra(p-tolyl)borate-functionalized solvent polymeric membrane: a facile and sensitive sensing platform for peroxidase and peroxidase mimetics. Chemistry 2013; 19:9979-86. [PMID: 23852960 DOI: 10.1002/chem.201300284] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/28/2013] [Indexed: 01/27/2023]
Abstract
The determination of peroxidase activities is the basis for enzyme-labeled bioaffinity assays, peroxidase-mimicking DNAzymes- and nanoparticles-based assays, and characterization of the catalytic functions of peroxidase mimetics. Here, a facile, sensitive, and cost-effective solvent polymeric membrane-based peroxidase detection platform is described that utilizes reaction intermediates with different pKa values from those of substrates and final products. Several key but long-debated intermediates in the peroxidative oxidation of o-phenylenediamine (o-PD) have been identified and their charge states have been estimated. By using a solvent polymeric membrane functionalized by an appropriate substituted tetraphenylborate as a receptor, those cationic intermediates could be transferred into the membrane from the aqueous phase to induce a large cationic potential response. Thus, the potentiometric indication of the o-PD oxidation catalyzed by peroxidase or its mimetics can be fulfilled. Horseradish peroxidase has been detected with a detection limit at least two orders of magnitude lower than those obtained by spectrophotometric techniques and traditional membrane-based methods. As an example of peroxidase mimetics, G-quadruplex DNAzymes were probed by the intermediate-sensitive membrane and a label-free thrombin detection protocol was developed based on the catalytic activity of the thrombin-binding G-quadruplex aptamer.
Collapse
Affiliation(s)
- Xuewei Wang
- Key Laboratory of Coastal Zone, Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), YICCAS, Yantai Shandong 264003, PR China
| | | |
Collapse
|
48
|
Li X, Zhang L, Wei X, Li J. A Sensitive and Renewable Chlortoluron Molecularly Imprinted Polymer Sensor Based on the Gate-Controlled Catalytic Electrooxidation of H2O2on Magnetic Nano-NiO. ELECTROANAL 2013. [DOI: 10.1002/elan.201200428] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
49
|
Zheng D, Zhu X, Zhu X, Bo B, Yin Y, Li G. An electrochemical biosensor for the direct detection of oxytetracycline in mouse blood serum and urine. Analyst 2013; 138:1886-90. [PMID: 23381199 DOI: 10.1039/c3an36590e] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxytetracycline (OTC), a broad-spectrum antibiotic, has been extensively used as a food additive for livestock. Its extensive use has greatly increased the risk of chronic drug abuse and has also increased the risk of the resulting diseases. Therefore, in light of this emerging situation, the detection of OTC in both food and livestock is very important to reduce the risks and for diagnosis purposes . In this work, we have proposed an electrochemical aptasensor to quantify OTC. The biosensor shows considerable sensitivity and selectivity, and it can be easily operated and regenerated. Furthermore, for the first time, we have shown that an electrochemical aptasensor can be directly used to detect OTC in mouse blood serum and urine. This biosensor has the potential to aid in the analysis of residual OTC levels, as well as providing more pharmacokinetic information in the future.
Collapse
Affiliation(s)
- Dianyuan Zheng
- Department of Biochemistry and State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210093, China
| | | | | | | | | | | |
Collapse
|
50
|
Li J, Li S, Wei X, Tao H, Pan H. Molecularly imprinted electrochemical luminescence sensor based on signal amplification for selective determination of trace gibberellin A3. Anal Chem 2012; 84:9951-5. [PMID: 23101695 DOI: 10.1021/ac302401s] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A new molecularly imprinted electrochemical luminescence (MIP-ECL) sensor was developed for Gibberellin A3 (GA3) determination. This sensor is based on competitive binding between the GA3 and the Rhodamine B (RhB)-labeled GA3 (RhB-GA3) to the MIP film. After the competitive binding, the residual RhB-GA3 on the MIP was electro-oxidized to produce RhB oxide, which could greatly amplify the weak electrochemiluminescence (ECL) signal of luminol. The ECL intensity decreased when the RhB-GA3 was replaced by GA3 molecules in the samples. Accordingly, GA3 was determined in the concentration range from 1 × 10(-11) to 3 × 10(-9) mol/L with a detection limit of 3.45 × 10(-12) mol/L. The sensor shows high sensitivity and selectivity, wide response range, good accuracy, and fast response. Beer samples were assayed by using the sensors, and the recoveries ranging from 96.0% to 103.2% were obtained.
Collapse
Affiliation(s)
- Jianping Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guangxi 541004, China.
| | | | | | | | | |
Collapse
|