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Victorious A, Zhang Z, Chang D, Maclachlan R, Pandey R, Xia J, Gu J, Hoare T, Soleymani L, Li Y. A DNA Barcode‐Based Aptasensor Enables Rapid Testing of Porcine Epidemic Diarrhea Viruses in Swine Saliva Using Electrochemical Readout. Angew Chem Int Ed Engl 2022; 61:e202204252. [DOI: 10.1002/anie.202204252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Amanda Victorious
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
| | - Zijie Zhang
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Dingran Chang
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | | | - Richa Pandey
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
| | - Jianrun Xia
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Jimmy Gu
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Todd Hoare
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Chemical Engineering McMaster University Canada
| | - Leyla Soleymani
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Engineering Physics McMaster University Canada
- Michael G. DeGroote Institute for Infectious Disease Research McMaster University Canada
| | - Yingfu Li
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
- Michael G. DeGroote Institute for Infectious Disease Research McMaster University Canada
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Victorious A, Zhang Z, Chang D, Malachlan R, Pandey R, Xia J, Gu J, Hoare T, Soleymani L, Li Y. A DNA Barcode‐Based Aptasensor Enables Rapid Testing of Porcine Epidemic Diarrhea Viruses in Swine Saliva Using Electrochemical Readout. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Zijie Zhang
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | - Dingran Chang
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | | | | | - Jianrun Xia
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | - Jimmy Gu
- McMurry University Biochemistry and Biomedical Sciences CANADA
| | - Todd Hoare
- McMurry University Chemical Engineering CANADA
| | - Leyla Soleymani
- McMastser University Engineering Physics 1280 Main Street W. L8S 4M1 Hamilton CANADA
| | - Yingfu Li
- McMaster University Biochemistry and Biomedical Sciences CANADA
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An ultrasensitive and selective electrochemical aptasensor based on rGO-MWCNTs/Chitosan/carbon quantum dot for the detection of lysozyme. Biosens Bioelectron 2018; 115:37-44. [PMID: 29793133 DOI: 10.1016/j.bios.2018.05.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/16/2018] [Accepted: 05/07/2018] [Indexed: 01/08/2023]
Abstract
An aptamer-based method is described for the electrochemical determination of lysozyme. A glassy carbon electrode was modified with a nanocomposite composed of reduced graphene oxide (rGO), multi-walled carbon nanotubes (MWCNTs), chitosan (CS), and a synthesized carbon quantum dot (CQD) from CS. The composition of the nanocomposite (rGO-MWCNT/CS/CQD) warrants a high surface-to-volume ratio, high conductivity, high stability, and great electrocatalytic activity. This nanocomposite provides a suitable site for better immobilization of aptamers due to the existence of many amino and carboxyl functional groups, and remaining oxygen-related defects properties in rGO. In addition, this nanocomposite allows considerable enhancement of the electrochemical signal and contributes to improving sensitivity. The amino-linked lysozyme aptamers were immobilized on the nanocomposite through covalent coupling between the amino groups of the aptamer and the amino groups of the nanocomposite using glutaraldehyde (GLA) linker. The modified electrode was characterized by electrochemical methods including differential pulse voltammetry (DPV), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). In the presence of lysozyme, the immobilized aptamer selectively caught the target lysozyme on the electrode interface that leads to a decrease in the DPV peak current and an increase in Charge Transfer Resistance (Rct) in EIS as an analytical signal. Using the obtained data from DPV and EIS techniques, two calibration curves were drawn. The anti-lysozyme aptasensor proposed has two very low LODs. These measures are 3.7 and 1.9 fmol L-1 within the wide detection ranges of 20 fmol L-1 to 10 nmol L-1, and 10 fmol L-1 to 100 nmol L-1 for DPV and EIS calibration curves, respectively. The GCE/rGO-MWCNT/CS/CQD showed sensitivity, high reproducibility, specificity and rapid response for lysozyme which can be used in biomedical fields.
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Rezaei B, Jamei HR, Ensafi AA. Lysozyme aptasensor based on a glassy carbon electrode modified with a nanocomposite consisting of multi-walled carbon nanotubes, poly(diallyl dimethyl ammonium chloride) and carbon quantum dots. Mikrochim Acta 2018; 185:180. [PMID: 29594452 DOI: 10.1007/s00604-017-2656-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 12/29/2017] [Indexed: 12/25/2022]
Abstract
An aptamer-based method is described for electrochemical determination of lysozyme. A glassy carbon electrode was modified with a nanocomposite composed of multi-walled carbon nanotubes, poly(diallyl dimethyl ammonium chloride), and carbon quantum dots. The composition of the nanocomposite (MWCNT/PDDA/CQD) warrants good electrical conductivity and a high surface-to-volume ratio. The lysozyme-binding aptamers were immobilized on the nanocomposite via covalent coupling between the amino groups of the aptamer and the carboxy groups of the nanocomposite. The modified electrode was characterized by electrochemical impedance spectroscopy, cyclic voltammetry and differential pulse voltammetry. The use of this nanocomposite results in a considerable enhancement of the electrochemical signal and contributes to improving sensitivity. Hexacyanoferrate was used as an electrochemical probe to study the dependence of the peak current on lysozyme concentration. In the presence of lysozyme, the interaction of lysozyme with immobilized aptamer results in a decrease of the peak current, best measured at +0.15 V vs. Ag/AgCl. A plot of peak current changes versus the logarithm of the lysozyme concentration is linear in the 50 fmol L-1 to 10 nmol L-1 concentration range, with a 12.9 fmol L-1 detection limit (at an S/N ratio of 3). The method is highly reproducible, specific and sensitive, and the electrode has a rapid response. It was applied to the determination of lysozyme in egg white, serum, and urine. Graphical abstract Schematic of a nanocomposite composed of multi-walled carbon nanotubes (MWCNTs), poly(diallyldimethyl ammonium chloride) (PDDA), and carbon quantum dots (CQDs) for use in a lysozyme aptasensor. The aptamer was immobilized on the surface, and bovine serum albumin (BSA) was applied to block the surface. The changes of peak current for the electrochemical probe hexacyanoferrate (Fe(CN)63-/4-) in the presence and absence of lysozyme was traced.
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Affiliation(s)
- Behzad Rezaei
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111 I.R., Iran.
| | - Hamid Reza Jamei
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111 I.R., Iran
| | - Ali Asghar Ensafi
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111 I.R., Iran
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Yao X, Ma X, Ding C, Jia L. Colorimetric determination of lysozyme based on the aggregation of gold nanoparticles controlled by a cationic polymer and an aptamer. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1876-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Arabzadeh A, Salimi A. Novel voltammetric and impedimetric sensor for femtomolar determination of lysozyme based on metal–chelate affinity immobilized onto gold nanoparticles. Biosens Bioelectron 2015; 74:270-6. [DOI: 10.1016/j.bios.2015.06.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 05/28/2015] [Accepted: 06/09/2015] [Indexed: 11/29/2022]
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Electrochemistry and electrochemiluminescence from a redox-active metal-organic framework. Biosens Bioelectron 2015; 68:197-203. [DOI: 10.1016/j.bios.2014.12.031] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/11/2014] [Accepted: 12/14/2014] [Indexed: 01/27/2023]
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Ma L, Zhang X, Liang A, Liu Q, Jiang Z. A new and highly sensitive resonance Rayleigh scattering assay for lysozyme using aptamer-nanogold as a probe. LUMINESCENCE 2014; 29:1003-7. [PMID: 24723431 DOI: 10.1002/bio.2650] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 11/03/2013] [Accepted: 01/18/2014] [Indexed: 01/07/2023]
Abstract
Gold nanoparticles (GN), 10 nm in size, were modified by using lysozyme aptamer (Apt) to obtain a stable Apt–GN probe in pH 8.05 Tris/HCl buffer solutions containing 0.04 mol/L NaCl. Upon addition of lysozyme (LYS), it reacted with the Apt of the probe to form a very stable Apt–LYS complex and to release GNs, which aggregated to form large clusters with a resonance Rayleigh scattering (RRS) peak at 368 nm. The enhanced peak intensity, ΔI, was linear to the LYS concentration in the range 0.2–5.2 nmol/L, with a detection limit of 0.05 nmol/L. The influence of foreign substance was tested, and the results showed that this RRS method has high selectivity. This Apt–GN RRS method was applied to the analysis of LYS in a real sample, with satisfactory results.
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Affiliation(s)
- Lu Ma
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Conservation of Education Ministry and Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
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Graphene-based lysozyme binding aptamer nanocomposite for label-free and sensitive lysozyme sensing. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.05.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wang XY, Gao A, Lu CC, He XW, Yin XB. An electrochemiluminescence aptasensor for thrombin using graphene oxide to immobilize the aptamer and the intercalated [Formula: see text] probe. Biosens Bioelectron 2013; 48:120-5. [PMID: 23665577 DOI: 10.1016/j.bios.2013.04.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 03/18/2013] [Accepted: 04/02/2013] [Indexed: 11/18/2022]
Abstract
The immobilization of aptamer and the introduction of signal molecule are two keys for the development of electrochemiluminescence (ECL) aptasensor. Herein, the immobilization strategy with graphene oxide (GO) and a functional oligonucleotide (FO) are used to develop a sensitive aptasensor with the detection of thrombin as a model. After GO is attached on glass carbon or gold electrodes through physical adsorption, the amino-tagged aptamer is immobilized on the electrode surface via an amide linkage between the amino group at the end of aptamer and the carboxyl groups on GO. The FO is designed to contain two parts: the complementary strand and an intermolecular duplex for the intercalation of Ru(phen)₃²⁺ as ECL probe. The hybridization between aptamer and its complementary part at FO achieves the introduction of Ru(phen)₃²⁺ probe onto the electrode surface for high ECL emission. The hybrid between aptamer and thrombin leads to the release of FO containing the intercalated Ru(phen)₃²⁺ probe. Correspondingly, the decreased ECL emission is used to quantify thrombin. The concentration-dependent response of thrombin is observed between 0.90 pM and 226 pM with a detection limit of 0.40 pM. While GO is used to immobilize the aptamer with various electrodes, such as glass carbon electrode and gold electrode in this work, GO can also preconcentrate TPrA on its surface to improve the sensitivity. The well-designed label-free ECL aptasensor strategy can be easily extended to other targets via the selection of their aptamers.
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Affiliation(s)
- Xiao-Yan Wang
- State Key Laboratory of Medicinal Chemical Biology and Key Laboratory of Functional Polymer Material-MOE, College of Chemistry, Nankai University, Tianjin 300071, PR China
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Lau PS, Li Y. Exploration of structure-switching in the design of aptamer biosensors. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2013; 140:69-92. [PMID: 23851586 DOI: 10.1007/10_2013_223] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The process of "structure-switching" enables biomolecular switches to function as effective biosensing tools. Biomolecular switches can be activated or inactivated by binding to a specific target that triggers a precise conformational change in the biomolecules involved. Although many examples of aptamer-based biomolecular switches can be found in nature, substantial effort has been made in the last decade to engineer structure-switching aptamer sensors by coupling aptamers to a signal transduction method to generate a readout signal upon target binding to the aptamer domain. This chapter focuses on the progress of research on engineered structure-switching aptamer sensors. We begin by discussing the origin of the structure-switching aptamer design, highlight the key developments of structure-switching DNA aptamers for fluorescence-, electrochemistry-, and colorimetry-based detection, and introduce our recent efforts in exploring RNA aptamers to create structure-switching molecular sensors.
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Affiliation(s)
- Pui Sai Lau
- Department of Biochemistry and Biomedical Sciences, Department of Chemistry and Chemical Biology, and Michael D. DeGroote Infectious Disease Research Institute, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
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Gao A, Tang CX, He XW, Yin XB. Electrochemiluminescent lead biosensor based on GR-5 lead-dependent DNAzyme for Ru(phen)3(2+) intercalation and lead recognition. Analyst 2012; 138:263-8. [PMID: 23120751 DOI: 10.1039/c2an36398d] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An electrochemiluminescent (ECL) lead biosensor was developed based on GR-5 lead-dependent DNAzyme for lead recognition and intercalated ruthenium tris(1,10-phenanthroline) (Ru(phen)(3)(2+)) as the ECL probe. The thiol-modified substrate was first immobilized on the surface of the gold electrode via gold-sulfur self-assembly. Subsequently, the hybridization of DNAzyme and its substrate and the automatic intercalation of Ru(phen)(3)(2+) proceeded. Intercalated Ru(phen)(3)(2+) can transfer electrons through double-stranded DNA to the electrode and its electrochemiluminescence was excited with a potential step using tripropylamine as the coreactant. In the presence of lead, the substrate cleaves at the scissile ribo-adenine into two fragments. The dissociation of DNAzyme occurs, leading to the releasing of intercalated Ru(phen)(3)(2+) accompanied by a decrease in the intensity of electrochemiluminescence. A quantity of lead can be calculated from this decrease. The biosensor is highly sensitive and specific, along with an ultra-low limit of detection of 0.9 pM and a dynamic range from 2 to 1000 pM. It enables analysis of trace amounts of lead in serum samples. The combination of the intercalated-Ru(phen)(3)(2+) ECL probe and the cofactor-dependent DNAzyme may push the performance of cofactor-sensing tactics to the extreme.
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Affiliation(s)
- Ai Gao
- State Key Laboratory of Medicinal Chemical Biology, College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
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Wang P, Song Y, Zhao Y, Fan A. Hydroxylamine amplified gold nanoparticle-based aptameric system for the highly selective and sensitive detection of platelet-derived growth factor. Talanta 2012. [PMID: 23200404 DOI: 10.1016/j.talanta.2012.10.087] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
This study developed a sensitive and selective aptamer-based chemiluminescent (CL) method for the determination of platelet-derived growth factor (PDGF)-BB using hydroxylamine enlarged gold nanoparticles (Au NPs). Rabbit anti-human PDGF-BB polyclonal antibody was covalently coupled on the 96-well plate that offers reactive N-oxysuccinimide ester (referred to as NOS group) surface. In the presence of target protein, the biotinylated aptamer was captured on the 96-well plate forming an antibody/PDGF-BB/biotinylated aptamer sandwiched complex, which was followed by the assembly of streptavidin coated Au NPs (streptavidin-gold). Au NPs assembled on the surface of 96-well plate reacted with HAuCl(4) and NH(2)OH, which enabled the catalytic deposition of gold metal onto the Au NPs surfaces. A huge number of Au(3+) ions were released from the hydroxylamine enlarged Au NPs after oxidative gold metal dissolution, which was determined by a simple and sensitive luminol CL reaction. The results showed that the detection limit of the assay is 60 pM of PDGF-BB (corresponding to 6 fmol in a 100 μL volume), which compares favorably with those of other PDGF-BB detection techniques. In addition, this aptameric CL biosensor demonstrated extraordinary specificity. And PDGF-BB has been determined in diluted serum indicating the applicability of this assay.
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Affiliation(s)
- Ping Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, People's Republic of China
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Yin XB. Functional nucleic acids for electrochemical and electrochemiluminescent sensing applications. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2011.09.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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