1
|
Li B, Wang Q, Sohail M, Zhang X, He H, Lin L. Facilitating the determination of microcystin toxins with bio-inspired sensors. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
2
|
Lei Z, Lei P, Guo J, Wang Z. Recent advances in nanomaterials-based optical and electrochemical aptasensors for detection of cyanotoxins. Talanta 2022; 248:123607. [PMID: 35661001 DOI: 10.1016/j.talanta.2022.123607] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/08/2022] [Accepted: 05/25/2022] [Indexed: 10/18/2022]
Abstract
The existence of cyanotoxins poses serious threats to human health, it is highly desirable to develop specific and sensitive methods for rapid detection of cyanotoxins in food and water. Due to the distinct advantages of aptamer including high specificity, good stability and easy preparation, various aptamer-based sensors (aptasensors) have been proposed to promote the detection of cyanotoxins. In this review, we summarize recent advance in optical and electrochemical aptasensors for cyanotoxins sensing by integrating with versatile nanomaterials or innovative sensing strategies, such as colorimetric aptasensors, fluorescent aptasensors, surface enhancement Raman spectroscopy-based aptasensors, voltammetric aptasensors, electrochemical impedance spectroscopy-based aptasensors and photoelectrochemical aptasensors. We highlight the accomplishments and advancements of aptasensors with improved performance. Furthermore, the current challenges and future prospects in cyanotoxins detection are discussed from our perspectives, which we hope to provide more ideas for future researchers.
Collapse
Affiliation(s)
- Zhen Lei
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - Peng Lei
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou, Guangdong, 510316, PR China
| | - Jingfang Guo
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, PR China
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China.
| |
Collapse
|
3
|
A facile ultrasensitive detection of MC-LR toxin via a real-time assembled aptasensor of plasmonic graphene oxide. Talanta 2022; 236:122864. [PMID: 34635246 DOI: 10.1016/j.talanta.2021.122864] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 12/20/2022]
Abstract
Real time controllable assembling/aptasensing approach via plasmonic graphene oxide (GO) nanocomposites has been firstly proven to simultaneously give tuning of micro-nano structure of plasmonic GO and ultrasensitive detection of MC-LR toxin. In order to fabricate the assembly, a high-quality hollow triangular nanoplate AgClAu:p-GO (HTNP AgClAu:p-GO) can act as a template; furthermore, we combine DNA-hybridization with biotin-strepavidin binding protocol for tuning the HTNP AgClAu:p-GO assemblies from networks to laminar structure, and simultaneously loading Raman reporters into the assemblies. The dynamic assembling process can be utilized as a real time SERS aptasensor for detecting MC-LR due to ratiometric introduction of MC-LR toxin inhibiting formation of plasmonic p-GO assembly via toxin/aptamer bioconjugation and causing reverse alteration of SERS signal for giving ultrasensitive SERS detection of MC-LR. A detection limit of 6.3pM with a wide linear range from 10pM to 5 nM can be achieved. When the aptasensor has been applied in real samples, the real time assembling/aptasensing approach shows recoveries from 98% to 103% with relative standard deviation (RSD) lower than 3%, expecting that one-step nanofabrication and sensing strategy can be extended to in-field test of environmental contaminants.
Collapse
|
4
|
Rolling Circle Amplification as an Efficient Analytical Tool for Rapid Detection of Contaminants in Aqueous Environments. BIOSENSORS-BASEL 2021; 11:bios11100352. [PMID: 34677308 PMCID: PMC8533700 DOI: 10.3390/bios11100352] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/16/2021] [Accepted: 09/21/2021] [Indexed: 12/16/2022]
Abstract
Environmental contaminants are a global concern, and an effective strategy for remediation is to develop a rapid, on-site, and affordable monitoring method. However, this remains challenging, especially with regard to the detection of various contaminants in complex water environments. The application of molecular methods has recently attracted increasing attention; for example, rolling circle amplification (RCA) is an isothermal enzymatic process in which a short nucleic acid primer is amplified to form a long single-stranded nucleic acid using a circular template and special nucleic acid polymerases. Furthermore, this approach can be further engineered into a device for point-of-need monitoring of environmental pollutants. In this paper, we describe the fundamental principles of RCA and the advantages and disadvantages of RCA assays. Then, we discuss the recently developed RCA-based tools for environmental analysis to determine various targets, including heavy metals, organic small molecules, nucleic acids, peptides, proteins, and even microorganisms in aqueous environments. Finally, we summarize the challenges and outline strategies for the advancement of this technique for application in contaminant monitoring.
Collapse
|
5
|
Yáñez-Sedeño P, González-Cortés A, Campuzano S, Pingarrón JM. Multimodal/Multifunctional Nanomaterials in (Bio)electrochemistry: Now and in the Coming Decade. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2556. [PMID: 33352731 PMCID: PMC7766190 DOI: 10.3390/nano10122556] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/13/2020] [Accepted: 12/16/2020] [Indexed: 01/15/2023]
Abstract
Multifunctional nanomaterials, defined as those able to achieve a combined effect or more than one function through their multiple functionalization or combination with other materials, are gaining increasing attention in the last years in many relevant fields, including cargo targeted delivery, tissue engineering, in vitro and/or in vivo diseases imaging and therapy, as well as in the development of electrochemical (bio)sensors and (bio)sensing strategies with improved performance. This review article aims to provide an updated overview of the important advances and future opportunities exhibited by electrochemical biosensing in connection to multifunctional nanomaterials. Accordingly, representative aspects of recent approaches involving metal, carbon, and silica-based multifunctional nanomaterials are selected and critically discussed, as they are the most widely used multifunctional nanomaterials imparting unique capabilities in (bio)electroanalysis. A brief overview of the main remaining challenges and future perspectives in the field is also provided.
Collapse
Affiliation(s)
- Paloma Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (A.G.-C.); (J.M.P.)
| | | | - Susana Campuzano
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (A.G.-C.); (J.M.P.)
| | | |
Collapse
|
6
|
Development of an impedimetric immunosensor to determine microcystin-LR. New approaches in the use of the electrochemical impedance spectroscopy was used in determining to determine kinetic parameters of immunoreactions. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
7
|
Kordasht HK, Hassanpour S, Baradaran B, Nosrati R, Hashemzaei M, Mokhtarzadeh A, la Guardia MD. Biosensing of microcystins in water samples; recent advances. Biosens Bioelectron 2020; 165:112403. [PMID: 32729523 DOI: 10.1016/j.bios.2020.112403] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 02/07/2023]
Abstract
Safety and quality of water are significant matters for agriculture, animals and human health. Microcystins, as secondary metabolite of cyanobacteria (blue-green algae) and cyclic heptapeptide cyanotoxin, are one of the main marine toxins in continental aquatic ecosystems. More than 100 microcystins have been identified, of which MC-LR is the most important type due to its high toxicity and common detection in the environment. Climate change is an impressive factor with effects on cyanobacterial blooms as source of microcystins. The presence of this cyanotoxin in freshwater, drinking water, water reservoir supplies and food (vegetable, fish and shellfish) has created a common phenomenon in eutrophic freshwater ecosystems worldwide. International public health organizations have categorized microcystins as a kind of neurotoxin and carcinogen. There are several conventional methods for detection of microcystins. The limitations of traditional methods have encouraged the development of innovative methods for detection of microcystins. In recent years, the developed sensor techniques, with advantages, such as accuracy, reproducibility, portability and low cost, have attracted considerable attention. This review compares the well-known of biosensor types for detection of microcystins with a summary of their analytical performance.
Collapse
Affiliation(s)
- Houman Kholafazad Kordasht
- Department of Food Hygiene and Aquatic, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Soodabeh Hassanpour
- Department of Analytical Chemistry, Faculty of Science, Palacky University Olomouc, 17. Listopadu 12, 77146, Olomouc, Czech Republic
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rahim Nosrati
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran; Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Mahmoud Hashemzaei
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Zabol University of Medical Sciences, Zabol, Iran
| | - Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100, Burjassot, Valencia, Spain.
| |
Collapse
|
8
|
Li F, Huang Y, Huang K, Lin J, Huang P. Functional Magnetic Graphene Composites for Biosensing. Int J Mol Sci 2020; 21:E390. [PMID: 31936264 PMCID: PMC7013569 DOI: 10.3390/ijms21020390] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/13/2019] [Accepted: 12/26/2019] [Indexed: 12/14/2022] Open
Abstract
Magnetic graphene composites (MGCs), which are composed of magnetic nanoparticles with graphene or its derivatives, played an important role in sensors development. Due to the enhanced electronic properties and the synergistic effect of magnetic nanomaterials and graphene, MGCs could be used to realize more efficient sensors such as chemical, biological, and electronic sensors, compared to their single component alone. In this review, we first reviewed the various routes for MGCs preparation. Then, sensors based on MGCs were discussed in different groups, including optical sensors, electrochemical sensors, and others. At the end of the paper, the challenges and opportunities for MGCs in sensors implementation are also discussed.
Collapse
Affiliation(s)
| | | | | | | | - Peng Huang
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, Laboratory of Evolutionary Theranostics (LET), School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China; (F.L.); (Y.H.); (K.H.); (J.L.)
| |
Collapse
|
9
|
Li Z, Li X, Jian M, Geleta GS, Wang Z. Two-Dimensional Layered Nanomaterial-Based Electrochemical Biosensors for Detecting Microbial Toxins. Toxins (Basel) 2019; 12:E20. [PMID: 31906152 PMCID: PMC7020412 DOI: 10.3390/toxins12010020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/18/2019] [Accepted: 12/27/2019] [Indexed: 01/04/2023] Open
Abstract
Toxin detection is an important issue in numerous fields, such as agriculture/food safety, environmental monitoring, and homeland security. During the past two decades, nanotechnology has been extensively used to develop various biosensors for achieving fast, sensitive, selective and on-site analysis of toxins. In particular, the two dimensional layered (2D) nanomaterials (such as graphene and transition metal dichalcogenides (TMDs)) and their nanocomposites have been employed as label and/or biosensing transducers to construct electrochemical biosensors for cost-effective detection of toxins with high sensitivity and specificity. This is because the 2D nanomaterials have good electrical conductivity and a large surface area with plenty of active groups for conjugating 2D nanomaterials with the antibodies and/or aptamers of the targeted toxins. Herein, we summarize recent developments in the application of 2D nanomaterial-based electrochemical biosensors for detecting toxins with a particular focus on microbial toxins including bacterial toxins, fungal toxins and algal toxins. The integration of 2D nanomaterials with some existing antibody/aptamer technologies into electrochemical biosensors has led to an unprecedented impact on improving the assaying performance of microbial toxins, and has shown great promise in public health and environmental protection.
Collapse
Affiliation(s)
- Zhuheng Li
- Jilin Provincial Institute of Education, Changchun 130022, China;
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; (X.L.); (M.J.)
| | - Xiaotong Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; (X.L.); (M.J.)
| | - Minghong Jian
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; (X.L.); (M.J.)
| | - Girma Selale Geleta
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; (X.L.); (M.J.)
- Department of Chemistry, College of Natural Sciences, Jimma University, Jimma 378, Ethiopia
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China; (X.L.); (M.J.)
| |
Collapse
|
10
|
Yáñez-Sedeño P, Agüí L, Campuzano S, Pingarrón JM. What Electrochemical Biosensors Can Do for Forensic Science? Unique Features and Applications. BIOSENSORS-BASEL 2019; 9:bios9040127. [PMID: 31671772 PMCID: PMC6956127 DOI: 10.3390/bios9040127] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/20/2022]
Abstract
This article critically discusses the latest advances in the use of voltammetric, amperometric, potentiometric, and impedimetric biosensors for forensic analysis. Highlighted examples that show the advantages of these tools to develop methods capable of detecting very small concentrations of analytes and provide selective determinations through analytical responses, without significant interferences from other components of the samples, are presented and discussed, thus stressing the great versatility and utility of electrochemical biosensors in this growing research field. To illustrate this, the determination of substances with forensic relevance by using electrochemical biosensors reported in the last five years (2015–2019) are reviewed. The different configurations of enzyme or affinity biosensors used to solve analytical problems related to forensic practice, with special attention to applications in complex samples, are considered. Main prospects, challenges to focus, such as the fabrication of devices for rapid analysis of target analytes directly on-site at the crime scene, or their widespread use and successful applications to complex samples of interest in forensic analysis, and future efforts, are also briefly discussed.
Collapse
Affiliation(s)
- Paloma Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - Lourdes Agüí
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - Susana Campuzano
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - José Manuel Pingarrón
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| |
Collapse
|
11
|
Zhang Y, Zhu Z, Teng X, Lai Y, Pu S, Pang P, Wang H, Yang C, Barrow CJ, Yang W. Enzyme-free fluorescent detection of microcystin-LR using hairpin DNA-templated copper nanoclusters as signal indicator. Talanta 2019; 202:279-284. [DOI: 10.1016/j.talanta.2019.05.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/22/2019] [Accepted: 05/02/2019] [Indexed: 10/26/2022]
|
12
|
Vogiazi V, de la Cruz A, Mishra S, Shanov V, Heineman WR, Dionysiou DD. A Comprehensive Review: Development of Electrochemical Biosensors for Detection of Cyanotoxins in Freshwater. ACS Sens 2019; 4:1151-1173. [PMID: 31056912 PMCID: PMC6625642 DOI: 10.1021/acssensors.9b00376] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cyanobacteria harmful algal blooms are increasing in frequency and cyanotoxins have become an environmental and public concern in the U.S. and worldwide. In this Review, the majority of reported studies and developments of electrochemical affinity biosensors for cyanotoxins are critically reviewed and discussed. Essential background information about cyanobacterial toxins and electrochemical biosensors is combined with the rapidly moving development of electrochemical biosensors for these toxins. Current issues and future challenges for the development of useful electrochemical biosensors for cyanotoxin detection that meet the demands for applications in field freshwater samples are discussed. The major aspects of the entire review article in a prescribed sequence include (i) the state-of-the-art knowledge of the toxicity of cyanotoxins, (ii) important harmful algal bloom events, (iii) advisories, guidelines, and regulations, (iv) conventional analytical methods for determination of cyanotoxins, (v) electrochemical transduction, (vi) recognition receptors, (vii) reported electrochemical biosensors for cyanotoxins, (viii) summary of analytical performance, and (ix) recent advances and future trends. Discussion includes electrochemical techniques and devices, biomolecules with high affinity, numerous array designs, various detection approaches, and research strategies in tailoring the properties of the transducer-biomolecule interface. Scientific and engineering aspects are presented in depth. This review aims to serve as a valuable source to scientists and engineers entering the interdisciplinary field of electrochemical biosensors for detection of cyanotoxins in freshwaters.
Collapse
Affiliation(s)
- Vasileia Vogiazi
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE) , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Armah de la Cruz
- Office of Research and Development , US Environmental Protection Agency , Cincinnati , Ohio 45220 , United States
| | - Siddharth Mishra
- Mechanical and Materials Engineering , University of Cincinnati , Cincinnati 45221 , Ohio United States
| | - Vesselin Shanov
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE) , University of Cincinnati , Cincinnati , Ohio 45221 , United States
- Mechanical and Materials Engineering , University of Cincinnati , Cincinnati 45221 , Ohio United States
| | - William R Heineman
- Department of Chemistry , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE) , University of Cincinnati , Cincinnati , Ohio 45221 , United States
| |
Collapse
|
13
|
Pastucha M, Farka Z, Lacina K, Mikušová Z, Skládal P. Magnetic nanoparticles for smart electrochemical immunoassays: a review on recent developments. Mikrochim Acta 2019; 186:312. [PMID: 31037494 DOI: 10.1007/s00604-019-3410-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/03/2019] [Indexed: 02/07/2023]
Abstract
This review (with 129 refs) summarizes the progress in electrochemical immunoassays combined with magnetic particles that was made in the past 5 years. The specifity of antibodies linked to electrochemical transduction (by amperometry, voltammetry, impedimetry or electrochemiluminescence) gains further attractive features by introducing magnetic nanoparticles (MNPs). This enables fairly easy preconcentration of analytes, minimizes matrix effects, and introduces an appropriate label. Following an introduction into the fundamentals of electrochemical immunoassays and on nanomaterials for respective uses, a large chapter addresses method for magnetic capture and preconcentration of analytes. A next chapter discusses commonly used labels such as dots, enzymes, metal and metal oxide nanoparticles and combined clusters. The large field of hybrid nanomaterials for use in such immunoassays is discussed next, with a focus on MNPs composites with various kinds of graphene variants, polydopamine, noble metal nanoparticles or nanotubes. Typical applications address clinical markers (mainly blood and urine parameters), diagnosis of cancer (markers and cells), detection of pathogens (with subsections on viruses and bacteria), and environmental and food contaminants as toxic agents and pesticides. A concluding section summarizes the present status, current challenges, and highlights future trends. Graphical abstract Magnetic nanoparticles (MNP) with antibodies (Ab) capture and preconcentrate analyte from sample (a) and afterwards become magnetically (b) or immunospecifically (c) bound at an electrode. Signal either increases due to the presence of alabel (b) or decreases as the redox probe is blocked (c).
Collapse
Affiliation(s)
- Matěj Pastucha
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Zdeněk Farka
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Karel Lacina
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Zuzana Mikušová
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Petr Skládal
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
- Central European Institute of Technology, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
| |
Collapse
|
14
|
Gao M, Lian H, Yu L, Gong M, Ma L, Zhou Y, Yu M, Yan X. Rolling circle amplification integrated with suspension bead array for ultrasensitive multiplex immunodetection of tumor markers. Anal Chim Acta 2019; 1048:75-84. [DOI: 10.1016/j.aca.2018.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/28/2018] [Accepted: 10/02/2018] [Indexed: 12/14/2022]
|
15
|
Qin J, Sun X, Li D, Yan G. Phosphorescent immunosensor for simple and sensitive detection of microcystin-LR in water. RSC Adv 2019; 9:12747-12754. [PMID: 35515855 PMCID: PMC9063644 DOI: 10.1039/c9ra02141h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 04/17/2019] [Indexed: 11/21/2022] Open
Abstract
A simple and sensitive Mn–ZnS quantum dot room-temperature phosphorescent immunosensor for detecting microcystin-LR was developed. This sensor adopted antigens and antibodies as recognition units and used Mn–ZnS RTP QDs as sensing materials to specifically bind with MC-LR. The structurally specific binding between the microcystin-LR antibody and MC-LR led to the aggregation of antibody-crosslinked QDs, and then the electrons of QDs would be transferred to the complex, leading to the phosphorescence quenching of QDs. The microcystin-LR antigen–antibody specific binding site was first analyzed. This phosphorescent immunosensor rapidly and sensitively detected microcystin-LR, with linear ranges of 0.2–1.5 μg L−1 and 1.5–20 μg L−1 and a detection limit of up to 0.024 μg L−1. Meanwhile, coexisting pollutants of microcystin-LR in water did not significantly interfere with microcystin-LR detection. The new sensor was applied to detect real water samples and showed high sensitivity and selectivity. A simple and sensitive Mn–ZnS quantum dot room-temperature phosphorescent immunosensor for detecting microcystin-LR was developed.![]()
Collapse
Affiliation(s)
- Jin Qin
- Shanxi Normal University
- Linfen
- China
| | | | | | | |
Collapse
|
16
|
Bostan HB, Taghdisi SM, Bowen JL, Demertzis N, Rezaee R, Panahi Y, Tsatsakis AM, Karimi G. Determination of microcystin-LR, employing aptasensors. Biosens Bioelectron 2018; 119:110-118. [DOI: 10.1016/j.bios.2018.08.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 01/26/2023]
|
17
|
Qileng A, Wei J, Lu N, Liu W, Cai Y, Chen M, Lei H, Liu Y. Broad-specificity photoelectrochemical immunoassay for the simultaneous detection of ochratoxin A, ochratoxin B and ochratoxin C. Biosens Bioelectron 2018; 106:219-226. [DOI: 10.1016/j.bios.2018.02.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 12/26/2017] [Accepted: 02/01/2018] [Indexed: 12/21/2022]
|
18
|
Zhang Y, Fang X, Zhu Z, Lai Y, Xu C, Pang P, Wang H, Yang C, Barrow CJ, Yang W. A sensitive electrochemical assay for T4 polynucleotide kinase activity based on titanium dioxide nanotubes and a rolling circle amplification strategy. RSC Adv 2018; 8:38436-38444. [PMID: 35559107 PMCID: PMC9090566 DOI: 10.1039/c8ra07745b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 10/29/2018] [Indexed: 12/21/2022] Open
Abstract
An ultrasensitive electrochemical biosensor was developed for detection of T4 polynucleotide kinase (T4 PNK) activity based on titanium dioxide nanotubes (TiO2 NTs) and a rolling circle amplification (RCA) strategy. In this study, the immobilized T4 PNK substrate probe with a 5′ terminus hydroxyl was phosphorylated by T4 PNK in the presence of adenosine triphosphate (ATP), and the resulting 5-phosphoryl can be linked with the TiO2 NTs and further conjugated with the phosphate-labeled primer. RCA was initiated by adding circular template, phi29 DNA polymerase and deoxyribonucleoside 5-triphosphate mixture (dNTPs). Biotin-labeled probes are chosen as a signal indicator by strong biotin–streptavidin interaction and the high loading of horseradish peroxidase–streptavidin (HRP–SA) for electrochemical signal generation and amplification. A dual-signaling amplification strategy has been established, which exhibited an excellent performance with a wide linear range from 0.0001–15 U mL−1 and a low detection limit of 0.00003 U mL−1 for T4 PNK detection. The inhibition effect of (NH4)2SO4 on the activity of T4 PNK is also evaluated. This new dual-signaling electrochemical biosensor can be used for the detection of the activity and inhibition of other nucleic acid enzymes. An ultrasensitive electrochemical biosensor was developed for detection of T4 polynucleotide kinase activity based on titanium dioxide nanotubes and a rolling circle amplification strategy.![]()
Collapse
Affiliation(s)
- Yanli Zhang
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions
- Yunnan Minzu University
- Kunming 650500
- P. R. China
| | - Xiang Fang
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions
- Yunnan Minzu University
- Kunming 650500
- P. R. China
| | - Zhenyu Zhu
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions
- Yunnan Minzu University
- Kunming 650500
- P. R. China
| | - Yanqiong Lai
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions
- Yunnan Minzu University
- Kunming 650500
- P. R. China
| | - Chunli Xu
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions
- Yunnan Minzu University
- Kunming 650500
- P. R. China
| | - Pengfei Pang
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions
- Yunnan Minzu University
- Kunming 650500
- P. R. China
| | - Hongbin Wang
- Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions
- Yunnan Minzu University
- Kunming 650500
- P. R. China
| | - Chun Yang
- Shaanxi Geological Survey Center
- Xi'an 710068
- P. R. China
| | - Colin J. Barrow
- School of Life and Environmental Sciences
- Deakin University
- Geelong
- Australia
| | - Wenrong Yang
- School of Life and Environmental Sciences
- Deakin University
- Geelong
- Australia
| |
Collapse
|