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Mandal AK, Pal T, Kumar S, Mukherji S, Mukherji S. A portable EIS-based biosensor for the detection of microcystin-LR residues in environmental water bodies and simulated body fluids. Analyst 2024; 149:2170-2179. [PMID: 38445310 DOI: 10.1039/d3an01029e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Due to the eutrophication of water bodies around the world, there is a drastic increase in harmful cyanobacterial blooms leading to contamination of water bodies with cyanotoxins. Chronic exposure to cyanotoxins such as microcystin leads to oxidative stress, inflammation, and liver damage, and potentially to liver cancer. We developed a novel and easy-to-use electrochemical impedance spectroscopy-based immunosensor by fabricating stencil-printed conductive carbon-based interdigitated microelectrodes and immobilising them with cysteamine-capped gold nanoparticles embedded in polyaniline. It has been also coupled with a custom handheld device enabling regular on-site assessment, especially in resource-constrained situations encountered in developing countries. The sensor is able to detect microcystin-LR up to 0.1 μg L-1, having a linear response between 0.1 and 100 μg L-1 in lake and river water and in serum and urine samples. In addition to being inexpensive, easy to fabricate, and sensitive, it also has very good selectivity.
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Affiliation(s)
- Atindra Kanti Mandal
- Centre for Research in Nanotechnology and Science, Indian Institute of Technology Bombay, Mumbai, India
| | - Tathagata Pal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India.
| | - Satish Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India.
| | - Suparna Mukherji
- Environmental Science and Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Soumyo Mukherji
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Mumbai, India.
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2
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Chieng A, Wan Z, Wang S. Recent Advances in Real-Time Label-Free Detection of Small Molecules. BIOSENSORS 2024; 14:80. [PMID: 38391999 PMCID: PMC10886562 DOI: 10.3390/bios14020080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024]
Abstract
The detection and analysis of small molecules, typically defined as molecules under 1000 Da, is of growing interest ranging from the development of small-molecule drugs and inhibitors to the sensing of toxins and biomarkers. However, due to challenges such as their small size and low mass, many biosensing technologies struggle to have the sensitivity and selectivity for the detection of small molecules. Notably, their small size limits the usage of labeled techniques that can change the properties of small-molecule analytes. Furthermore, the capability of real-time detection is highly desired for small-molecule biosensors' application in diagnostics or screening. This review highlights recent advances in label-free real-time biosensing technologies utilizing different types of transducers to meet the growing demand for small-molecule detection.
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Affiliation(s)
- Andy Chieng
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; (A.C.); (Z.W.)
- School of Molecular Science, Arizona State University, Tempe, AZ 85287, USA
| | - Zijian Wan
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; (A.C.); (Z.W.)
| | - Shaopeng Wang
- Center for Bioelectronics and Biosensors, Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA; (A.C.); (Z.W.)
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
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3
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Alba-Posse EJ, Bruque CD, Gándola Y, Gasulla J, Nadra AD. From in-silico screening to in-vitro evaluation: Enhancing the detection of Microcystins with engineered PP1 mutant variants. J Struct Biol 2023; 215:108043. [PMID: 37935286 DOI: 10.1016/j.jsb.2023.108043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/20/2023] [Accepted: 11/04/2023] [Indexed: 11/09/2023]
Abstract
Cyanotoxins produced during harmful algal blooms (CyanoHABs) have become a worldwide issue of concern. Microcystins (MC) are the most ubiquitous group of cyanotoxins and have known carcinogenic and hepatotoxic effects. The protein phosphatase inhibition assays (PPIAs), based on the inhibition of Protein Phosphatase 1/2A (PP1/PP2A) by MC, are one of the most cost-effective options for detecting MC. In this work, we aimed to design in-silico and evaluate in-vitro mutant variants of the PP1 protein, in order to enhance their capabilities as a MC biosensor. To this end, we performed an in-silico active site-saturated mutagenesis screening, followed by stability and docking affinity calculation with the MCLR cyanotoxin. Candidates with improved both affinity and stability were further tested in a fully flexible active-site docking. The best-scored mutations (19) were individually analysed regarding their locations and interactions. Four of them (p.D197F; p.Q249Y; p.S129W; p.D220Q) were selected for in-vitro expression and evaluation. Mutant p.D197F, exhibited a significant increment in inhibition by MCLR with respect to the WT, while showing a non-significant difference in stability nor activity. This successful PP1 inhibition enhancement suggests the potential of the p.D197F variant for practical MC detection applications.
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Affiliation(s)
- Ezequiel J Alba-Posse
- Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología y Biología Molecular y Celular, Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina
| | - Carlos David Bruque
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina; Unidad de Conocimiento Traslacional Hospitalaria Patagónica, Hospital de Alta Complejidad El Calafate - S.A.M.I.C., Jorge Newbery 453, CP9405 El Calafate, Santa Cruz, Argentina
| | - Yamila Gándola
- Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología y Biología Molecular y Celular, Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA Buenos Aires, Argentina
| | - Javier Gasulla
- Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología y Biología Molecular y Celular, Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina.
| | - Alejandro D Nadra
- Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología y Biología Molecular y Celular, Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Universidad de Buenos Aires, Intendente Güiraldes 2160, C1428EGA Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina.
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Vishwakarma V, Ogunkunle CO, Rufai AB, Okunlola GO, Olatunji OA, Jimoh MA. Nanoengineered particles for sustainable crop production: potentials and challenges. 3 Biotech 2023; 13:163. [PMID: 37159590 PMCID: PMC10163185 DOI: 10.1007/s13205-023-03588-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/23/2023] [Indexed: 05/11/2023] Open
Abstract
Nanoengineered nanoparticles have a significant impact on the morphological, physiology, biochemical, cytogenetic, and reproductive yields of agricultural crops. Metal and metal oxide nanoparticles like Ag, Au, Cu, Zn, Ti, Mg, Mn, Fe, Mo, etc. and ZnO, TiO2, CuO, SiO2, MgO, MnO, Fe2O3 or Fe3O4, etc. that found entry into agricultural land, alter the morphological, biochemical and physiological system of crop plants. And the impacts on these parameters vary based on the type of crop and nanoparticles, doses of nanoparticles and its exposure situation or duration, etc. These nanoparticles have application in agriculture as nanofertilizers, nanopesticides, nanoremediator, nanobiosensor, nanoformulation, phytostress-mediator, etc. The challenges of engineered metal and metal oxide nanoparticles pertaining to soil pollution, phytotoxicity, and safety issue for food chains (human and animal safety) need to be understood in detail. This review provides a general overview of the applications of nanoparticles, their potentials and challenges in agriculture for sustainable crop production.
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Affiliation(s)
- Vinita Vishwakarma
- Centre for Nanoscience and Nanotechnology, Galgotias University, Greater Noida, 203201 India
| | - Clement Oluseye Ogunkunle
- Environmental Botany Unit, Department of Plant Biology, University of Ilorin, Ilorin, 240003 Nigeria
- Department of Plant Biology, Osun State University, Osogbo, Nigeria
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5
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Alba Posse EJ, González C, Carriquiriborde P, Nadra A, Gasulla J. Optimization and validation of a protein phosphatase inhibition assay for accessible microcystin detection. Talanta 2023; 255:124174. [PMID: 36608426 DOI: 10.1016/j.talanta.2022.124174] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/28/2022] [Accepted: 12/04/2022] [Indexed: 12/27/2022]
Abstract
The presence of cyanobacterial toxins in freshwater constitutes an increasing public health concern, especially affecting developing countries where the high cost of available methods makes monitoring programs difficult. The phosphatase inhibition assay (PPIA) is a sensitive method with low instrument requirements that allows the quantification of the most frequent cyanotoxins, microcystins (MCs). In this work, we implemented a PPIA, starting from Protein Phosphatase 1 (PP1) expression up to the validation with samples of algal blooms from Argentina. To do this, we optimized the expression and lyophilization of PP1, and the assay conditions. Also, we included robustness and possible interference analysis. We evaluated the most widely used cyanobacterial lysis methods and determined that heating for 15 min at 95 °C is simple and adequate for this assay. Then, we performed MC spikes recovery assays on water samples from three dams from Argentina, resulting in a recovery ranging from 77 to 115%. The limit of detection (LOD) was 0.4 μg/L and the linear range is 0.4 μg/L - 5 μg/L. Finally, we evaluated 65 environmental samples where MCs was measured by ELISA test containing from 0 μg/L to 625 μg/L. The PPIA showed excellent correlation (Pearson correlation coefficient = 0.967), no false negative and no false positives above the 1 μg/L WHO guideline (0.11 false positive rate). In conclusion, we optimized and validated a PPIA to be an effective and accessible alternative to available commercial tests.
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Affiliation(s)
- Ezequiel Jorge Alba Posse
- Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología y Biología Molecular y Celular, Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Universidad de Buenos Aires, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina
| | - Carolina González
- Facultad de Ciencias Exactas y Naturales, Departamento de Ecología, Genética y Evolución, Instituto IEGEBA (CONICET-UBA), Universidad de Buenos Aires, Argentina; Centro de investigaciones, Agua y Saneamientos Argentinos, CABA, Argentina
| | - Pedro Carriquiriborde
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina; Centro de Investigaciones Del Medio Ambiente (CIM),Universidad Nacional de la Plata-CONICET, La Plata, Argentina
| | - Alejandro Nadra
- Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología y Biología Molecular y Celular, Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Universidad de Buenos Aires, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina
| | - Javier Gasulla
- Facultad de Ciencias Exactas y Naturales, Departamento de Fisiología y Biología Molecular y Celular, Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Universidad de Buenos Aires, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290, C1425FQB Buenos Aires, Argentina; Centro de Investigaciones Del Medio Ambiente (CIM),Universidad Nacional de la Plata-CONICET, La Plata, Argentina.
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6
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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]
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7
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Yuan Y, Jia H, Xu D, Wang J. Novel method in emerging environmental contaminants detection: Fiber optic sensors based on microfluidic chips. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159563. [PMID: 36265627 DOI: 10.1016/j.scitotenv.2022.159563] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
Recently, human industrial practices and certain activities have caused the widespread spread of emerging contaminants throughout the environmental matrix, even in trace amounts, which constitute a serious threat to human health and environmental ecology, and have therefore attracted the attention of research scholars. Different traditional techniques are used to monitor water pollutants, However, they still have some disadvantages such as high costs, ecological problems and treatment times, and require technicians and researchers to operate them effectively. There is therefore an urgent need to develop simple, inexpensive and highly sensitive methods to sense and detect these toxic environmental contaminants. Optical fiber microfluidic coupled sensors offer different advantages over other detection technologies, allowing manipulation of light through controlled microfluidics, precise detection results and good stability, and have therefore become a logical device for screening and identifying environmental contaminants. This paper reviews the application of fiber optic microfluidic sensors in emerging environmental contaminant detection, focusing on the characteristics of different emerging contaminant types, different types of fiber optic microfluidic sensors, methodological principles of detection, and specific emerging contaminant detection applications. The optical detection methods in fiber optic microfluidic chips and their respective advantages and disadvantages are analyzed in the discussion. The applications of fiber optic biochemical sensors in microfluidic chips, especially for the detection of emerging contaminants in the aqueous environment, such as personal care products, endocrine disruptors, and perfluorinated compounds, are reviewed. Finally, the prospects of fiber optic microfluidic coupled sensors in environmental detection and related fields are foreseen.
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Affiliation(s)
- Yang Yuan
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Hui Jia
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - DanYu Xu
- Tianjin Academy of Eco-enviromental Sciences, Tianjin 300191, China
| | - Jie Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, China; Cangzhou Institute of Tiangong University, Tiangong University, Tianjin 300387, China.
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8
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Bouteiller P, Lance E, Guérin T, Biré R. Analysis of Total-Forms of Cyanotoxins Microcystins in Biological Matrices: A Methodological Review. Toxins (Basel) 2022; 14:toxins14080550. [PMID: 36006212 PMCID: PMC9416067 DOI: 10.3390/toxins14080550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/22/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Microcystins (MCs) are cyclic heptapeptidic toxins produced by many cyanobacteria. Microcystins can be accumulated in various matrices in two forms: a free cellular fraction and a covalently protein-bound form. To detect and quantify the concentration of microcystins, a panel of techniques on various matrices (water, sediments, and animal tissues) is available. The analysis of MCs can concern the free or the total (free plus covalently bound) fractions. Free-form analyses of MCs are the most common and easiest to detect, whereas total-form analyses are much less frequent and more complex to achieve. The objective of this review is to summarize the different methods of extraction and analysis that have been developed for total forms. Four extraction methods were identified: MMPB (2-methyl-3-methoxy-4-phenylbutyric acid) method, deconjugation at basic pH, ozonolysis, and laser irradiation desorption. The study of the bibliography on the methods of extraction and analysis of the total forms of MCs showed that the reference method for the subject remains the MMPB method even if alternative methods and, in particular, deconjugation at basic pH, showed results encouraging the continuation of the methodological development on different matrices and on naturally-contaminated samples.
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Affiliation(s)
- Pierre Bouteiller
- Université de Reims Champagne-Ardenne, UMR-I 02 INERIS-URCA-ULH SEBIO, Unité Stress Environnementaux et BIOsurveillance des Milieux Aquatiques (SEBIO), BP 1039, CEDEX 2, F-51687 Reims, France
- Laboratory for Food Safety, ANSES, F-94701 Maisons-Alfort, France
| | - Emilie Lance
- Université de Reims Champagne-Ardenne, UMR-I 02 INERIS-URCA-ULH SEBIO, Unité Stress Environnementaux et BIOsurveillance des Milieux Aquatiques (SEBIO), BP 1039, CEDEX 2, F-51687 Reims, France
- UMR MNHN/CNRS MCAM, Muséum National d’Histoire Naturelle, F-75005 Paris, France
- Correspondence:
| | - Thierry Guérin
- Strategy and Programs Department, ANSES, F-94701 Maisons-Alfort, France
| | - Ronel Biré
- Laboratory for Food Safety, ANSES, F-94701 Maisons-Alfort, France
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Zhang H, Li B, Liu Y, Chuan H, Liu Y, Xie P. Immunoassay technology: Research progress in microcystin-LR detection in water samples. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127406. [PMID: 34689091 DOI: 10.1016/j.jhazmat.2021.127406] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/20/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Increasing global warming and eutrophication have led to frequent outbreaks of cyanobacteria blooms in freshwater. Cyanobacteria blooms cause the death of aquatic and terrestrial organisms and have attracted considerable attention since the 19th century. Microcystin-LR (MC-LR) is one of the most typical cyanobacterial toxins. Therefore, the fast, sensitive, and accurate determination of MC-LR plays an important role in the health of humans and animals. Immunoassay refers to a method that uses the principle of immunology to determine the content of the tested substance in a sample using the tested substance as an antigen or antibody. In analytical applications, the immunoassay technology could use the specific recognition of antibodies for MC-LR detection. In this review, we firstly highlight the immunoassay detection of MC-LR over the past two decades, including classical enzyme-link immunosorbent assay (ELISA), modern immunoassay with optical signal, and modern immunoassay with electrical signal. Among these detection methods, the water environment was used as the main detection system. The advantages and disadvantages of the different detection methods were compared and analyzed, and the principles and applications of immunoassays in water samples were elaborated. Furthermore, the current challenges and developmental trends in immunoassay were systematically introduced to enhance MC-LR detection performance, and some critical points were given to deal with current challenges. This review provides novel insight into MC-LR detection based on immunoassay method.
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Affiliation(s)
- Huixia Zhang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Bingyan Li
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Yipeng Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Huiyan Chuan
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Yong Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China.
| | - Ping Xie
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China; Donghu Experimental Station of Lake Ecosystems, State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, PR China.
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Park H, Kim G, Seo Y, Yoon Y, Min J, Park C, Lee T. Improving Biosensors by the Use of Different Nanomaterials: Case Study with Microcystins as Target Analytes. BIOSENSORS 2021; 11:525. [PMID: 34940282 PMCID: PMC8699174 DOI: 10.3390/bios11120525] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/09/2021] [Accepted: 12/15/2021] [Indexed: 11/30/2022]
Abstract
The eutrophication of lakes and rivers without adequate rainfall leads to excessive growth of cyanobacterial harmful algal blooms (CyanoHABs) that produce toxicants, green tides, and unpleasant odors. The rapid growth of CyanoHABs owing to global warming, climate change, and the development of rainforests and dams without considering the environmental concern towards lakes and rivers is a serious issue. Humans and livestock consuming the toxicant-contaminated water that originated from CyanoHABs suffer severe health problems. Among the various toxicants produced by CyanoHABs, microcystins (MCs) are the most harmful. Excess accumulation of MC within living organisms can result in liver failure and hepatocirrhosis, eventually leading to death. Therefore, it is essential to precisely detect MCs in water samples. To date, the liquid chromatography-mass spectrometry (LC-MS) and enzyme-linked immunosorbent assay (ELISA) have been the standard methods for the detection of MC and provide precise results with high reliability. However, these methods require heavy instruments and complicated operation steps that could hamper the portability and field-readiness of the detection system. Therefore, in order for this goal to be achieved, the biosensor has been attracted to a powerful alternative for MC detection. Thus far, several types of MC biosensor have been proposed to detect MC in freshwater sample. The introduction of material is a useful option in order to improve the biosensor performance and construct new types of biosensors. Introducing nanomaterials to the biosensor interface provides new phenomena or enhances the sensitivity. In recent times, different types of nanomaterials, such as metallic, carbon-based, and transition metal dichalcogenide-based nanomaterials, have been developed and used to fabricate biosensors for MC detection. This study reviews the recent advancements in different nanomaterial-based MC biosensors.
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Affiliation(s)
- Hanbin Park
- Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea; (H.P.); (G.K.); (Y.S.); (Y.Y.)
| | - Gahyeon Kim
- Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea; (H.P.); (G.K.); (Y.S.); (Y.Y.)
| | - Yoseph Seo
- Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea; (H.P.); (G.K.); (Y.S.); (Y.Y.)
| | - Yejin Yoon
- Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea; (H.P.); (G.K.); (Y.S.); (Y.Y.)
| | - Junhong Min
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea
| | - Chulhwan Park
- Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea; (H.P.); (G.K.); (Y.S.); (Y.Y.)
| | - Taek Lee
- Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea; (H.P.); (G.K.); (Y.S.); (Y.Y.)
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11
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García Y, Vera M, Giraldo JD, Garrido-Miranda K, Jiménez VA, Urbano BF, Pereira ED. Microcystins Detection Methods: A Focus on Recent Advances Using Molecularly Imprinted Polymers. Anal Chem 2021; 94:464-478. [PMID: 34874146 DOI: 10.1021/acs.analchem.1c04090] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yadiris García
- Departamento de Química Analítica e Inorgánica Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
| | - Myleidi Vera
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
| | - Juan D Giraldo
- Instituto de Acuicultura, Universidad Austral de Chile, Sede Puerto Montt, Los Pinos s/n Balneario Pelluco, 5480000 Puerto Montt, Chile
| | - Karla Garrido-Miranda
- Center of Waste Management and Bioenergy, Scientific and Technological Bioresource Nucleus, BIOREN-UFRO, Universidad de La Frontera, P.O. Box 54-D, 4811230 Temuco, Chile
| | - Verónica A Jiménez
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano, 4260000 Talcahuano, Chile
| | - Bruno F Urbano
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
| | - Eduardo D Pereira
- Departamento de Química Analítica e Inorgánica Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, 4030000 Concepción, Chile
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12
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Luo X, Zhao X, Wallace GQ, Brunet MH, Wilkinson KJ, Wu P, Cai C, Bazuin CG, Masson JF. Multiplexed SERS Detection of Microcystins with Aptamer-Driven Core-Satellite Assemblies. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6545-6556. [PMID: 33522805 DOI: 10.1021/acsami.0c21493] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We describe surface-enhanced Raman spectroscopy (SERS) aptasensors that can indirectly detect MC-LR and MC-RR, individually or simultaneously, in natural water and in algal culture. The sensor is constructed from nanoparticles composed of successive layers of Au core-SERS label-silver shell-gold shell (Au@label@Ag@Au NPs), functionalized on the outer Au surface by MC-LR and/or MC-RR aptamers. These NPs are immobilized on asymmetric Au nanoflowers (AuNFs) dispersed on planar silicon substrates through DNA hybridization of the aptamers and capture DNA sequences with which the AuNFs are functionalized, thereby forming core-satellite nanostructures on the substrates. This construction led to greater electromagnetic (EM) field enhancement of the Raman label-modified region, as supported by finite-difference time-domain (FDTD) simulations of the core-satellite assembly. In the presence of MC-LR and/or MC-RR, the aptamer-functionalized NPs dissociate from the AuNFs because of the stronger affinity of the aptamers with the MCs, which decreases the SERS signal, thus allowing indirect detection of the MCs. The improved SERS sensitivity significantly decreased the limit of detection (LOD) for separate MC-LR detection (0.8 pM) and for multiplex detection (1.5 pM for MC-LR and 1.3 pM for MC-RR), compared with other recently reported SERS-based methods for MC-LR detection. The aptasensors show excellent selectivity to MC-LR/MC-RR and excellent recoveries (96-105%). The use of these SERS aptasensors to monitor MC-LR production over 1 week in a culture medium of M. aeruginosa cells demonstrates the applicability of the sensors in a realistic environment.
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Affiliation(s)
- Xiaojun Luo
- Département de chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
- Centre québécois des matériaux fonctionnels (CQMF), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Regroupement québécois des matériaux de pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
| | - Xingjuan Zhao
- Département de chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Centre québécois des matériaux fonctionnels (CQMF), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Regroupement québécois des matériaux de pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
| | - Gregory Q Wallace
- Département de chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Centre québécois des matériaux fonctionnels (CQMF), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Regroupement québécois des matériaux de pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
| | - Marie-Hélène Brunet
- Département de chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Regroupement québécois des matériaux de pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
| | - Kevin J Wilkinson
- Département de chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Regroupement québécois des matériaux de pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
| | - Ping Wu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
| | - Chenxin Cai
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210097, P. R. China
| | - C Geraldine Bazuin
- Département de chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Centre québécois des matériaux fonctionnels (CQMF), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
| | - Jean-Francois Masson
- Département de chimie, Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Centre québécois des matériaux fonctionnels (CQMF), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
- Regroupement québécois des matériaux de pointe (RQMP), Université de Montréal, C.P. 6128 Succ. Centre-Ville, Montréal, Quebec, Canada H3C 3J7
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Suo T, Sohail M, Xie S, Li B, Chen Y, Zhang L, Zhang X. DNA nanotechnology: A recent advancement in the monitoring of microcystin-LR. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123418. [PMID: 33265072 DOI: 10.1016/j.jhazmat.2020.123418] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/24/2020] [Accepted: 07/05/2020] [Indexed: 06/12/2023]
Abstract
The Microcystin-Leucine-Arginine (MC-LR) is the most toxic and widely distributed microcystin, which originates from cyanobacteria produced by water eutrophication. The MC-LR has deleterious effects on the aquatic lives and agriculture, and this highly toxic chemical could severely endanger human health when the polluted food was intaken. Therefore, the monitoring of MC-LR is of vital importance in the fields including environment, food, and public health. Utilizing the complementary base pairing between DNA molecules, DNA nanotechnology can realize the programmable and predictable regulation of DNA molecules. In analytical applications, DNA nanotechnology can be used to detect targets via target-induced conformation change and the nano-assemblies of nucleic acids. Compared with the conventional analytical technologies, DNA nanotechnology has the advantages of sensitive, versatile, and high potential in real-time and on-site applications. According to the molecular basis for recognizing MC-LR, the strategies of applying DNA nanotechnology in the MC-LR monitoring are divided into two categories in this review: DNA as a recognition element and DNA-assisted signal processing. This paper introduces state-of-the-art analytical methods for the detection of MC-LR based on DNA nanotechnology and provides critical perspectives on the challenges and development in this field.
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Affiliation(s)
- Tiying Suo
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Muhammad Sohail
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Siying Xie
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China
| | - Bingzhi Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Yue Chen
- School of Nursing, Nanjing Medical University, Nanjing 211166, China.
| | - Lihui Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Xing Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
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Impedimetric Microcystin-LR Aptasensor Prepared with Sulfonated Poly(2,5-dimethoxyaniline)–Silver Nanocomposite. Processes (Basel) 2021. [DOI: 10.3390/pr9010179] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
This paper presents a novel impedimetric aptasensor for cyanobacterial microcystin-LR (L, l-leucine; R, l-arginine) (MC-LR) containing a 5′ thiolated 60-mer DNA aptamer (i.e., 5′-SH-(CH2)6GGCGCCAAACAGGACCACCATGACAATTACCCATACCACCTCATTATGCCCCATCT CCGC-3′). A nanocomposite electrode platform comprising biocompatible poly(2,5-dimethoxyaniline) (PDMA)-poly(vinylsulfonate) (PVS) and silver nanoparticle (Ag0) on a glassy carbon electrode (GCE), i.e., (GCE/PDMA–PVS–Ag0) was used in the biosensor development. Small-angle X-ray scattering (SAXS) spectroscopic analysis revealed that the PDMA–PVS–Ag0 nanocomposites were polydispersed and contained embedded Ag0. Electrochemical impedance spectroscopy (EIS) responses of the aptasensor gave a dynamic linear range (DLR) and limit of detection (LOD) values of 0.01–0.1 ng L−1 MC-LR and 0.003 ng L−1 MC-LR, respectively. The cross-reactivity studies, which was validated with enzyme-linked immunosorbent assay (ELISA), showed that the aptasensor possesses excellent selectivity for MC-LR.
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Massey IY, Wu P, Wei J, Luo J, Ding P, Wei H, Yang F. A Mini-Review on Detection Methods of Microcystins. Toxins (Basel) 2020; 12:E641. [PMID: 33020400 PMCID: PMC7601875 DOI: 10.3390/toxins12100641] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 12/14/2022] Open
Abstract
Cyanobacterial harmful algal blooms (CyanoHABs) produce microcystins (MCs) which are associated with animal and human hepatotoxicity. Over 270 variants of MC exist. MCs have been continually studied due of their toxic consequences. Monitoring water quality to assess the presence of MCs is of utmost importance although it is often difficult because CyanoHABs may generate multiple MC variants, and their low concentration in water. To effectively manage and control these toxins and prevent their health risks, sensitive, fast, and reliable methods capable of detecting MCs are required. This paper aims to review the three main analytical methods used to detect MCs ranging from biological (mouse bioassay), biochemical (protein phosphatase inhibition assay and enzyme linked immunosorbent assay), and chemical (high performance liquid chromatography, liquid chromatography-mass spectrometry, high performance capillary electrophoresis, and gas chromatography), as well as the newly emerging biosensor methods. In addition, the current state of these methods regarding their novel development and usage, as well as merits and limitations are presented. Finally, this paper also provides recommendations and future research directions towards method application and improvement.
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Affiliation(s)
- Isaac Yaw Massey
- Xiangya School of Public Health, Central South University, Changsha 410078, China; (I.Y.M.); (P.W.); (J.W.); (J.L.); (P.D.)
| | - Pian Wu
- Xiangya School of Public Health, Central South University, Changsha 410078, China; (I.Y.M.); (P.W.); (J.W.); (J.L.); (P.D.)
| | - Jia Wei
- Xiangya School of Public Health, Central South University, Changsha 410078, China; (I.Y.M.); (P.W.); (J.W.); (J.L.); (P.D.)
| | - Jiayou Luo
- Xiangya School of Public Health, Central South University, Changsha 410078, China; (I.Y.M.); (P.W.); (J.W.); (J.L.); (P.D.)
| | - Ping Ding
- Xiangya School of Public Health, Central South University, Changsha 410078, China; (I.Y.M.); (P.W.); (J.W.); (J.L.); (P.D.)
| | - Haiyan Wei
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nantong University, Nantong 226019, China
| | - Fei Yang
- Xiangya School of Public Health, Central South University, Changsha 410078, China; (I.Y.M.); (P.W.); (J.W.); (J.L.); (P.D.)
- School of Public Health, University of South China, Hengyang 421001, China
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16
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Kumar P, Rautela A, Kesari V, Szlag D, Westrick J, Kumar S. Recent developments in the methods of quantitative analysis of microcystins. J Biochem Mol Toxicol 2020; 34:e22582. [PMID: 32662914 DOI: 10.1002/jbt.22582] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 05/21/2020] [Accepted: 06/30/2020] [Indexed: 12/15/2022]
Abstract
Cyanotoxins are produced by the toxic cyanobacterial species present in algal blooms formed in water bodies due to nutrient over-enrichment by human influences and natural environmental conditions. Extensive studies are available on the most widely encountered cyanotoxins, microcystins (MCs) in fresh and brackish water bodies. MC contaminated water poses severe risks to human health, environmental sustainability, and aquatic life. Therefore, commonly occurring MCs should be monitored. Occasionally, detection and quantification of these toxins are difficult due to the unavailability of pure standards. Enzymatic, immunological assays, and analytical techniques like protein phosphatase inhibition assay, enzyme-linked immunosorbent assay, high-performance liquid chromatography, liquid chromatography-mass spectrometry, and biosensors are used for their detection and quantification. There is no single method for the detection of all the different types of MCs; therefore, various techniques are often combined to yield reliable results. Biosensor development offered a problem-solving approach in the detection of MCs due to their high accuracy, sensitivity, rapid response, and portability. In this review, an endeavor has been made to uncover emerging techniques used for the detection and quantification of the MCs.
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Affiliation(s)
- Piyush Kumar
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi, Uttar Pradesh, India
| | - Akhil Rautela
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi, Uttar Pradesh, India
| | - Vigya Kesari
- Department of Botany, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - David Szlag
- Department of Chemistry, Lumigen Instrument Center, Wayne State University, Detroit, Michigan
| | - Judy Westrick
- Department of Chemistry, Lumigen Instrument Center, Wayne State University, Detroit, Michigan
| | - Sanjay Kumar
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University) Varanasi, Varanasi, Uttar Pradesh, India
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Pang P, Lai Y, Zhang Y, Wang H, Conlan XA, Barrow CJ, Yang W. Recent Advancement of Biosensor Technology for the Detection of Microcystin-LR. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190365] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Pengfei Pang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, P. R. China
- Deakin University, School of Life and Environmental Sciences, Geelong, VIC 3217, Australia
| | - Yanqiong Lai
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, P. R. China
| | - Yanli Zhang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, P. R. China
- Deakin University, School of Life and Environmental Sciences, Geelong, VIC 3217, Australia
| | - Hongbin Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming 650500, P. R. China
- Deakin University, School of Life and Environmental Sciences, Geelong, VIC 3217, Australia
| | - Xavier A. Conlan
- Deakin University, School of Life and Environmental Sciences, Geelong, VIC 3217, Australia
| | - Colin J. Barrow
- Deakin University, School of Life and Environmental Sciences, Geelong, VIC 3217, Australia
| | - Wenrong Yang
- Deakin University, School of Life and Environmental Sciences, Geelong, VIC 3217, Australia
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Weber SJ, Mishra DR, Wilde SB, Kramer E. Risks for cyanobacterial harmful algal blooms due to land management and climate interactions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 703:134608. [PMID: 31757537 DOI: 10.1016/j.scitotenv.2019.134608] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/12/2019] [Accepted: 09/21/2019] [Indexed: 05/20/2023]
Abstract
The frequency and severity of cyanobacteria harmful blooms (CyanoHABs) have been increasing with frequent eutrophication and shifting climate paradigms. CyanoHABs produce a spectrum of toxins and can trigger neurological disorder, organ failure, and even death. To promote proactive CyanoHAB management, geospatial risk modeling can act as a predictive mechanism to supplement current mitigation efforts. In this study, iterative AIC analysis was performed on 17 watershed-level biophysical parameters to identify the strongest predictors based on Sentinel-2-derived cyanobacteria cell densities (CCD) for 771 waterbodies in Georgia Piedmont. This study used a streamlined watershed delineation technique, a 1-meter LULC classification with ~88% accuracy, and a technique to predict CyanoHAB risk in small-to-medium sized waterbodies. Landscape characteristics were computed utilizing the Google Earth Engine platform that enabled large spatio-temporal scope and variable inclusion. Watershed maximum winter temperature, percent agriculture, percent forest, percent impervious, and waterbody area were the strongest predictors of CCD with a 0.33 R-squared. Warmer winter temperatures allow cyanobacteria to be photosynthetically active year-round, and trigger CyanoHABs when warmer temperatures and nutrients are introduced in early spring, typically referred to as Spring Bloom in southeast U.S. The risk models revealed an unexpected significant linear relationship between percent forest and CCD. It is due to the fact that land reclamation via reforestation in the piedmont have left legacy sediment and nutrients which are mobilized as surface runoff to the watershed after rain events. A Jenks Natural Break scheme assigned waterbodies to CyanoHAB risk groups, and of the 771 waterbodies, 24.38% were low, 37.35% and 38.26% were medium and high risk respectively. This research supplements existing cyanobacteria risk modeling methods by introducing a novel, scalable, and reproducible method to determine yearly regional risk. Future studies should include factors such as demographic, socioeconomic, labor, and site-specific environmental conditions to create more holistic CyanoHAB risk outputs.
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Affiliation(s)
- Samuel J Weber
- Department of Geography, University of Georgia, Athens, GA 30602, USA
| | - Deepak R Mishra
- Department of Geography, University of Georgia, Athens, GA 30602, USA.
| | - Susan B Wilde
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA
| | - Elizabeth Kramer
- College of Agricultural and Environmental Sciences, University of Georgia, Athens, GA 30602, USA
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Roegner A, Truong L, Weirich C, Pírez-Schirmer M, Brena B, Miller TR, Tanguay R. Combined Danio rerio embryo morbidity, mortality and photomotor response assay: A tool for developmental risk assessment from chronic cyanoHAB exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 697:134210. [PMID: 32380631 PMCID: PMC7111134 DOI: 10.1016/j.scitotenv.2019.134210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/19/2019] [Accepted: 08/29/2019] [Indexed: 05/28/2023]
Abstract
Freshwater harmful algal blooms produce a broad array of bioactive compounds, with variable polarity. Acute exposure to cyanotoxins can impact the liver, nervous system, gastrointestinal tract, skin, and immune function. Increasing evidence suggests chronic effects from low-level exposures of cyanotoxins and other associated bioactive metabolites of cyanobacterial origin. These sundry compounds persist in drinking and recreational waters and challenge resource managers in detection and removal. A systematic approach to assess the developmental toxicity of cyanobacterial metabolite standards was employed utilizing a robust and high throughput developmental Danio rerio embryo platform that incorporated a neurobehavioral endpoint, photomotor response. Subsequently, we applied the platform to cyanobacterial bloom surface water samples taken from temperate recreational beaches and tropical lake subsistence drinking water sources as a model approach. Dechorionated Danio rerio embryos were statically immersed beginning at four to six hours post fertilization at environmentally relevant concentrations, and then assessed at 24 h and 5 days for morbidity, morphological changes, and photomotor response. At least one assessed endpoint deviated significantly for exposed embryos for 22 out of 25 metabolites examined. Notably, the alkaloid lyngbyatoxin-a resulted in profound, dose-dependent morbidity and mortality beginning at 5 μg/L. In addition, hydrophobic components of extracts from beach monitoring resulted in potent morbidity and mortality despite only trace cyanotoxins detected. The hydrophilic extracts with several order of magnitude higher concentrations of microcystins resulted in no morbidity or mortality. Developmental photomotor response was consistently altered in environmental bloom samples, independent of the presence or concentration of toxins detected in extracts. While limited with respect to more polar compounds, this novel screening approach complements specific fingerprinting of acutely toxic metabolites with robust assessment of developmental toxicity, critical for chronic exposure scenarios.
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Affiliation(s)
- Amber Roegner
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, 97331, USA.
| | - Lisa Truong
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, 97331, USA; Sinnhuber Aquatic Research Laboratory, Oregon State University, 28645 East Highway 34, Corvallis, OR 97333, USA
| | - Chelsea Weirich
- Joseph J. Zilber School of Public Health, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Macarena Pírez-Schirmer
- Departamento de Biociencias, Cátedra de Inmunología, Facultad de Química, Universidad de la República, Instituto de Higiene, A. Navarro 3051, 11600 Montevideo, Uruguay
| | - Beatriz Brena
- Departamento de Biociencias, Cátedra de Inmunología, Facultad de Química, Universidad de la República, Instituto de Higiene, A. Navarro 3051, 11600 Montevideo, Uruguay; Departamento de Biociencias, Cátedra de Bioquímica, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay
| | - Todd R Miller
- Joseph J. Zilber School of Public Health, University of Wisconsin-Milwaukee, Milwaukee, WI 53211, USA
| | - Robert Tanguay
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR, 97331, USA; Sinnhuber Aquatic Research Laboratory, Oregon State University, 28645 East Highway 34, Corvallis, OR 97333, USA
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Ao D, Lei Z, Dzakpasu M, Chen R. Role of divalent metals Cu 2+ and Zn 2+ in Microcystis aeruginosa proliferation and production of toxic microcystins. Toxicon 2019; 170:51-59. [PMID: 31526809 DOI: 10.1016/j.toxicon.2019.09.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 09/09/2019] [Accepted: 09/11/2019] [Indexed: 01/17/2023]
Abstract
Cu2+ and Zn2+, two ubiquitous metals in water environments, can widely trigger algae blooms at favourable environmental conditions. This paper elucidates the roles of Cu2+ and Zn2+ in the proliferation of Microcystis aeruginosa (M. aeruginosa) and synthesis of Microcystins (MCs). Findings indicate significant influences of increasing Cu2+ and Zn2+ concentrations on cell proliferation at limited available phosphorus concentrations of less than 0.1 mg/L. By contrast, Cu2+ and Zn2+ notably affected MCs production at all the inoculated phosphorus concentrations. The critical concentrations of 1 μg/L and 5 μg/L for Cu2+ and Zn2+, respectively, are determined to trigger rapid cell proliferation and MCs production. Furthermore, the impacts of Cu2+ and Zn2+ on nitrogen absorption and, subsequently, on amino acids (AAs) formation in cells, is likely key in MCs synthesis. The two AAs Alanine (Ala) and glutamic acid (Glu) demonstrate the most notable variations with the concentrations of Cu2+ & Zn2+.
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Affiliation(s)
- Dong Ao
- School of Environmental and Chemical Engineering, Xi' an Polytechnic University, Xi'an, 710048, PR China; International S&T Cooperation Centre for Urban Alternative Water Resources Development, No.13 Yanta Road, Xi'an, 710055, PR China; Key Lab of Environmental Engineering, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an, 710055, PR China.
| | - Zhen Lei
- International S&T Cooperation Centre for Urban Alternative Water Resources Development, No.13 Yanta Road, Xi'an, 710055, PR China; Key Lab of Environmental Engineering, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an, 710055, PR China
| | - Mawuli Dzakpasu
- International S&T Cooperation Centre for Urban Alternative Water Resources Development, No.13 Yanta Road, Xi'an, 710055, PR China; Key Lab of Environmental Engineering, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an, 710055, PR China
| | - Rong Chen
- International S&T Cooperation Centre for Urban Alternative Water Resources Development, No.13 Yanta Road, Xi'an, 710055, PR China; Key Lab of Environmental Engineering, Xi'an University of Architecture and Technology, No.13 Yanta Road, Xi'an, 710055, PR China
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The Diversity of Cyanobacterial Toxins on Structural Characterization, Distribution and Identification: A Systematic Review. Toxins (Basel) 2019; 11:toxins11090530. [PMID: 31547379 PMCID: PMC6784007 DOI: 10.3390/toxins11090530] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 11/19/2022] Open
Abstract
The widespread distribution of cyanobacteria in the aquatic environment is increasing the risk of water pollution caused by cyanotoxins, which poses a serious threat to human health. However, the structural characterization, distribution and identification techniques of cyanotoxins have not been comprehensively reviewed in previous studies. This paper aims to elaborate the existing information systematically on the diversity of cyanotoxins to identify valuable research avenues. According to the chemical structure, cyanotoxins are mainly classified into cyclic peptides, alkaloids, lipopeptides, nonprotein amino acids and lipoglycans. In terms of global distribution, the amount of cyanotoxins are unbalanced in different areas. The diversity of cyanotoxins is more obviously found in many developed countries than that in undeveloped countries. Moreover, the threat of cyanotoxins has promoted the development of identification and detection technology. Many emerging methods have been developed to detect cyanotoxins in the environment. This communication provides a comprehensive review of the diversity of cyanotoxins, and the detection and identification technology was discussed. This detailed information will be a valuable resource for identifying the various types of cyanotoxins which threaten the environment of different areas. The ability to accurately identify specific cyanotoxins is an obvious and essential aspect of cyanobacterial research.
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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]
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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.
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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
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24
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Tang X, Yin Z, Lei X, Zeng Y, Zhang Z, Lu Y, Zhou G, Li L, Wu X. Colorimetric Method for Sensitive Detection of Microcystin-LR Using Surface Copper Nanoparticles of Polydopamine Nanosphere as Turn-On Probe. NANOMATERIALS 2019; 9:nano9030332. [PMID: 30832300 PMCID: PMC6473965 DOI: 10.3390/nano9030332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 02/17/2019] [Accepted: 02/19/2019] [Indexed: 01/02/2023]
Abstract
A novel, facile sensor was further developed for microcystin-LR (MC-LR) determination by visible spectroscopy. Antibody-functionalized SiO2-coated magnetic nanoparticles (Fe3O4@SiO2) and aptamer-functionalized polydopamine nanospheres decorated with Cu nanoparticles (PDA/CuNPs) recognized specific sites in MC-LR and then the sandwich-type composites were separated magnetically. The Cu in the separated composites was converted to Cu2+ ions in solution and turn-on visible absorption was achieved after reaction with bis(cyclohexanone)oxaldihydrazone (BCO) (λmax = 600 nm). There was a quantitative relationship between the spectral intensity and MC-LR concentration. In addition, under the optimum conditions, the sensor turns out to be a linear relationship from 0.05 to 25 nM, with a limit of detection of 0.05 nM (0.05 μg/L) (S/N = 3) for MC-LR. The sensitivity was dependent on the low background absorption from the off-to-on spectrum and label amplification by the polydopamine (PDA) surface. The sensor had high selectivity, which shows the importance of dual-site recognition by the aptamer and antibody and the highly specific color formed by BCO with Cu2+. The bioassay was complete within 150 min, which enabled quick determination. The sensor was successfully used with real spiked samples. These results suggest it has potential applications in visible detection and could be used to detect other microcystin analogs.
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Affiliation(s)
- Xiaodi Tang
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China.
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Zhengzhi Yin
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Xiaoling Lei
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Yanbo Zeng
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Zulei Zhang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Yixia Lu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Guobao Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Lei Li
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
| | - Xiaohua Wu
- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China.
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25
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Xu C, Liu X, Liu Y, Zhang X, Zhang C, Li J, Liu X. High sensitive single chain variable fragment screening from a microcystin-LR immunized mouse phage antibody library and its application in immunoassay. Talanta 2019; 197:397-405. [PMID: 30771953 DOI: 10.1016/j.talanta.2019.01.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/03/2019] [Accepted: 01/16/2019] [Indexed: 12/23/2022]
Abstract
Microcystin-LR (MC-LR) is one of common high-toxic biotoxins produced by cyanobacteria in waterbody. A high sensitive and convenient detection method is necessary for monitoring for MC-LR. To establish a high sensitive indirect competitive enzyme-linked immunosorbent assay (IC-ELISA) based on single chain variable fragment (scFv) for detecting MC-LR, 16 positive anti-MC-LR phage scFv particles were screened out from a MC-LR-immunized mouse phage scFv library, which was successfully constructed with the capacity of 8.67 × 107 CFU/mL. The most positive anti-MC-LR phage scFv (MscFv7) was successfully expressed in Escherichia coli (E.coli) HB2151. The molecular weight (M.W.) of expressed protein was about 30 kDa, and the concentration of purified protein was 512.6 μg/mL analyzed by SDS-PAGE and protein quantitative respectively. The IC-ELISA based on MscFv7-scFv for MC-LR shows a half-maximum inhibition (IC50) of 0.471 μg/L and a limit of detection (LOD) of 0.044 μg/L, which is below the maximum residue limit standard (MRLs) of 1.0 μg/L in drinking water. The MscFv7-scFv has a strong cross-recognition for MC-RR and MC-YR with cross-reactivity (CRs) of 93.1% and 85.9%, respectively, but weak for MC-LW with that of 9.7%, even non-recognition for MC-WR, MC-LF and MC-LY. The recovery rates of IC-ELISA to detect MC-LR spiked in different cleanliness of water samples were 81.2-106.3% with CVs of 2.62-10.22% at intra-assay and inter-assay. The results showed that we obtained a high sensitive anti-MC-LR scFv, and the established IC-ELISA based on MscFv7-scFv should be promising for ultrasensitive monitoring MC-LR, MC-RR and MC-YR in water samples.
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Affiliation(s)
- Chongxin Xu
- Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Xiaoqin Liu
- Huaihua Vocational and Technical College, Huaihua 418007, China
| | - Yuan Liu
- Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xiao Zhang
- Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Cunzheng Zhang
- Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jianhong Li
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
| | - Xianjin Liu
- Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
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26
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Júnior JJS, Soares TA, Pol-Fachin L, Machado DC, Rusu VH, Aguiar JP, Rodrigues CG. Alpha-hemolysin nanopore allows discrimination of the microcystins variants. RSC Adv 2019; 9:14683-14691. [PMID: 35516306 PMCID: PMC9064141 DOI: 10.1039/c8ra10384d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/01/2019] [Indexed: 01/20/2023] Open
Abstract
Microcystins (MCs) are a class of cyclic heptapeptides with more than 100 variants produced by cyanobacteria present in surface waters. MCs are potent hepatotoxic agents responsible for fatal poisoning in animals and humans. Several techniques are employed in the detection of MCs, however, there is a shortage of methods capable of discriminating variants of MCs. In this work we demonstrate that the α-hemolysin (αHL) nanopore can detect and discriminate the variants (LR, YR and RR) of MCs in aqueous solution. The discrimination process is based on the analysis of the residence times of each variant of MCs within the unitary nanopore, as well as, on the amplitudes of the blockages in the ionic current flowing through it. Simulations of molecular dynamics and calculation of the electrostatic potential revealed that the variants of MCs present different charge distribution and correlated with the three patterns on the amplitudes of the blockages in the ionic current. Additionally, molecular docking analysis indicates different patterns of interaction of the variants of MCs with two specific regions of the nanopore. We conclude that αHL nanopore can discriminate variants of microcystins by a mechanism based mainly on electrostatic interaction. Finally, we propose the use of nanopore-based technology as a promising method for analyzing microcystins in aqueous solutions. Microcystins (MCs) are a class of cyclic heptapeptides with more than 100 variants produced by cyanobacteria present in surface waters.![]()
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Affiliation(s)
- Janilson J. S. Júnior
- Departamento de Biofísica e Radiobiologia
- Universidade Federal de Pernambuco
- Recife
- Brazil
- Programa de Pós-graduação em Inovação Terapêutica
| | - Thereza A. Soares
- Departamento de Química Fundamental
- Universidade Federal de Pernambuco
- Recife
- Brazil
| | - Laércio Pol-Fachin
- Departamento de Química Fundamental
- Universidade Federal de Pernambuco
- Recife
- Brazil
- Centro de Pesquisas Aggeu Magalhães
| | - Dijanah C. Machado
- Departamento de Biofísica e Radiobiologia
- Universidade Federal de Pernambuco
- Recife
- Brazil
| | - Victor H. Rusu
- Departamento de Química Fundamental
- Universidade Federal de Pernambuco
- Recife
- Brazil
| | - Juliana P. Aguiar
- Departamento de Biofísica e Radiobiologia
- Universidade Federal de Pernambuco
- Recife
- Brazil
- Programa de Pós-graduação em Inovação Terapêutica
| | - Cláudio G. Rodrigues
- Departamento de Biofísica e Radiobiologia
- Universidade Federal de Pernambuco
- Recife
- Brazil
- Programa de Pós-graduação em Inovação Terapêutica
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27
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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: 8] [Impact Index Per Article: 1.6] [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.![]()
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Affiliation(s)
- Jin Qin
- Shanxi Normal University
- Linfen
- China
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28
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Fabrication of graphene film composite electrochemical biosensor as a pre-screening algal toxin detection tool in the event of water contamination. Sci Rep 2018; 8:10686. [PMID: 30013209 PMCID: PMC6048102 DOI: 10.1038/s41598-018-28959-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 07/02/2018] [Indexed: 11/08/2022] Open
Abstract
In this work, we fabricated a novel graphene film composite biosensor for microcystin-LR detection as an alternative to time-consuming, expensive, non-portable and often skills-demanding conventional methods of analysis involved in water quality monitoring and assessment. Excellent linear correlation (R2 = 0.99) of the electron-transfer resistance was achieved over a wide range of microcystin-LR (MC-LR) concentration, i.e. 0.005–10 μg/L. As-prepared graphene film composite biosensors can specifically detect MC-LR with remarkable sensitivity and detection limit (2.3 ng/L) much lower than the World Health Organization (WHO) provisional guideline limit of microcystin-LR concentration (i.e. 1 μg/L) in different water sources. Their great potential can be attributed to large active surface area of graphene film and efficient charge transfer process enabled by their high conductivity. Developed graphene film composite biosensors were also successfully applied to determination of MC-LR in several environmental water samples with high detection recovery, which offers a promising possibility of large-scale manufacture of sensor tips due to their macroscopic free-standing nature, the scalable fabrication route and easily tunable size.
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29
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TriPleX™ waveguide-based fluorescence biosensor for multichannel environmental contaminants detection. Biosens Bioelectron 2018; 106:117-121. [PMID: 29414077 DOI: 10.1016/j.bios.2018.01.066] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 01/26/2018] [Accepted: 01/30/2018] [Indexed: 12/17/2022]
Abstract
In order to realize the multi-analyte assays for environmental contaminants, an optical biosensor utilizing laser-induced fluorescence-based detection via the binding of biomolecules to the surface of an integrated TriPleX™ waveguide chip on a glass substrate (fused silica, FS) is described. As far as we know, this is the first demonstration of using the TriPleX™ technology to fabricate the waveguide chip on a FS substrate. The sensor consists of 32 individually addressable sensor patches, which were formed on the chip surface by exploiting 3 Y-junction splitters, creating four equal rows of eight evanescently excited windows in parallel. The basic low-loss SiO2/Si3N4 TriPleX™ waveguide configuration in combination with on-chip spotsize convertors allows for both high fiber-to-chip coupling efficiency and enables at the same time individually optimized high chip surface intensity and low patch-to-patch deviation. Moreover, the complementary metal-oxide-semiconductor compatible fabrication of waveguide chip allows for its mass production at low cost. By taking MC-LR, 2,4-D, atrazine and BPA as the model analytes, the as-proposed waveguide based biosensor was proven sensitive with the detection limits of 0.22 μg/L for MC-LR, 1.18 μg/L for 2, 4-D, 0.2 μg/L for atrazine and 0.06 μg/L for BPA. Recoveries of the biosensor towards simultaneous detection of MC-LR, 2, 4-D, atrazine and BPA in spiked real water samples varied from 84% to 120%, indicating the satisfactory accuracy of the established technology.
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30
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Lvova L, Guanais Gonçalves C, Prodi L, Lombardo M, Zaccheroni N, Viaggiu E, Congestri R, Guzzella L, Pozzoni F, Di Natale C, Paolesse R. Non-enzymatic portable optical sensors for microcystin-LR. Chem Commun (Camb) 2018; 54:2747-2750. [DOI: 10.1039/c7cc09830h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a selective non-enzymatic optical sensor for fast and low-cost detection of microcystin-LR and POCT estimation of water toxicity.
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Affiliation(s)
- Larisa Lvova
- Department of Chemical Science and Technologies
- University “Tor Vergata”
- Rome
- Italy
| | | | - Luca Prodi
- Dipartimento di Chimica “G.Ciamician” Università degli Studi di Bologna
- Bologna
- Italy
| | - Marco Lombardo
- Dipartimento di Chimica “G.Ciamician” Università degli Studi di Bologna
- Bologna
- Italy
| | - Nelsi Zaccheroni
- Dipartimento di Chimica “G.Ciamician” Università degli Studi di Bologna
- Bologna
- Italy
| | | | | | | | | | - Corrado Di Natale
- Department of Electronic Engineering
- University “Tor Vergata”
- Rome
- Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technologies
- University “Tor Vergata”
- Rome
- Italy
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31
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Zhang H, Yang S, Beier RC, Beloglazova NV, Lei H, Sun X, Ke Y, Zhang S, Wang Z. Simple, high efficiency detection of microcystins and nodularin-R in water by fluorescence polarization immunoassay. Anal Chim Acta 2017; 992:119-127. [DOI: 10.1016/j.aca.2017.09.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 08/24/2017] [Accepted: 09/01/2017] [Indexed: 12/18/2022]
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32
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Hu Y, Shang F, Liu Y, Wang S, Hu Y, Guo Z. A label-free electrochemical immunosensor based on multi-functionalized graphene oxide for ultrasensitive detection of microcystin-LR. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0258-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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33
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Liu L, Zhou X, Wilkinson JS, Hua P, Song B, Shi H. Integrated optical waveguide-based fluorescent immunosensor for fast and sensitive detection of microcystin-LR in lakes: Optimization and Analysis. Sci Rep 2017. [PMID: 28623299 PMCID: PMC5473886 DOI: 10.1038/s41598-017-03939-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Nowadays, biosensor technologies which can detect various contaminants in water quickly and cost-effectively are in great demand. Herein, we report an integrated channel waveguide-based fluorescent immunosensor with the ability to detect a maximum of 32 contaminants rapidly and simultaneously. In particular, we use waveguide tapers to improve the efficiency of excitation and collection of fluorescent signals in the presence of fluorophore photobleaching in a solid surface bioassay. Under the optimized waveguide geometry, this is the first demonstration of using such a type of waveguide immunosensor for the detection of microcystin-LR (MC-LR) in lake water. The waveguide chip was activated by (3-Mercaptopropyl) trimethoxysilane/N-(4-maleimidobutyryloxy) succinimide (MTS/GMBS) for immobilization of BSA-MC-LR conjugate, which was confirmed to have uniform monolayer distribution by atomic force microscopy. All real lake samples, even those containing MC-LR in the sub-microgram per liter range (e.g. 0.5 μg/L), could be determined by the immunosensor with recovery rates between 84% and 108%, confirming its application potential in the measurement of MC-LR in real water samples.
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Affiliation(s)
- Lanhua Liu
- Center for Sensor Technology of Environment and Health, State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing, 10084, China
| | - Xiaohong Zhou
- Center for Sensor Technology of Environment and Health, State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing, 10084, China.
| | - James S Wilkinson
- Optoelectronics Research Centre, Southampton University, Highfield, Southampton, SO17 1BJ, UK
| | - Ping Hua
- Optoelectronics Research Centre, Southampton University, Highfield, Southampton, SO17 1BJ, UK.
| | - Baodong Song
- Center for Sensor Technology of Environment and Health, State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing, 10084, China
| | - Hanchang Shi
- Center for Sensor Technology of Environment and Health, State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing, 10084, China
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34
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He Z, Wei J, Gan C, Liu W, Liu Y. A rolling circle amplification signal-enhanced immunosensor for ultrasensitive microcystin-LR detection based on a magnetic graphene-functionalized electrode. RSC Adv 2017. [DOI: 10.1039/c7ra07696g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Construction of a rolling circle amplification signal-enhanced immunosensor for ultrasensitive microcystin-LR detection by using a magnetic graphene functionalized electrode.
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Affiliation(s)
- Zuyu He
- Department of Applied Chemistry
- College of Materials & Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Jie Wei
- Department of Applied Chemistry
- College of Materials & Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Cuifen Gan
- Department of Applied Chemistry
- College of Materials & Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Weipeng Liu
- Department of Applied Chemistry
- College of Materials & Energy
- South China Agricultural University
- Guangzhou 510642
- China
| | - Yingju Liu
- Department of Applied Chemistry
- College of Materials & Energy
- South China Agricultural University
- Guangzhou 510642
- China
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35
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Bilibana MP, Williams AR, Rassie C, Sunday CE, Makelane H, Wilson L, Ntshongontshi N, Jijana AN, Masikini M, Baker PGL, Iwuoha EI. Electrochemical Aptatoxisensor Responses on Nanocomposites Containing Electro-Deposited Silver Nanoparticles on Poly(Propyleneimine) Dendrimer for the Detection of Microcystin-LR in Freshwater. SENSORS (BASEL, SWITZERLAND) 2016; 16:E1901. [PMID: 27845719 PMCID: PMC5134560 DOI: 10.3390/s16111901] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 10/19/2016] [Accepted: 10/20/2016] [Indexed: 02/07/2023]
Abstract
A sensitive and reagentless electrochemical aptatoxisensor was developed on cobalt (II) salicylaldiimine metallodendrimer (SDD-Co(II)) doped with electro-synthesized silver nanoparticles (AgNPs) for microcystin-LR (L, l-leucine; R, l-arginine), or MC-LR, detection in the nanomolar range. The GCE|SDD-Co(II)|AgNPs aptatoxisensor was fabricated with 5' thiolated aptamer through self-assembly on the modified surface of the glassy carbon electrode (GCE) and the electronic response was measured using cyclic voltammetry (CV). Specific binding of MC-LR with the aptamer on GCE|SDD-Co(II)|AgNPs aptatoxisensor caused the formation of a complex that resulted in steric hindrance and electrostatic repulsion culminating in variation of the corresponding peak current of the electrochemical probe. The aptatoxisensor showed a linear response for MC-LR between 0.1 and 1.1 µg·L-1 and the calculated limit of detection (LOD) was 0.04 µg·L-1. In the detection of MC-LR in water samples, the aptatoxisensor proved to be highly sensitive and stable, performed well in the presence of interfering analog and was comparable to the conventional analytical techniques. The results demonstrate that the constructed MC-LR aptatoxisensor is a suitable device for routine quantification of MC-LR in freshwater and environmental samples.
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Affiliation(s)
- Mawethu P Bilibana
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Avril R Williams
- Department of Biological and Chemical Sciences, The University of the West Indies, Cave Hill, St. Michael BB11000, Barbados.
| | - Candice Rassie
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Christopher E Sunday
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Hlamulo Makelane
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Lindsay Wilson
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Nomaphelo Ntshongontshi
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Abongile N Jijana
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Milua Masikini
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Priscilla G L Baker
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
| | - Emmanuel I Iwuoha
- SensorLab, Department of Chemistry, University of Western Cape, Robert Sobukwe Road, Bellville, Cape Town 7535, South Africa.
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Loftin KA, Graham JL, Hilborn ED, Lehmann SC, Meyer MT, Dietze JE, Griffith CB. Cyanotoxins in inland lakes of the United States: Occurrence and potential recreational health risks in the EPA National Lakes Assessment 2007. HARMFUL ALGAE 2016; 56:77-90. [PMID: 28073498 DOI: 10.1016/j.hal.2016.04.001] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 03/31/2016] [Accepted: 04/05/2016] [Indexed: 05/03/2023]
Abstract
A large nation-wide survey of cyanotoxins (1161 lakes) in the United States (U.S.) was conducted during the EPA National Lakes Assessment 2007. Cyanotoxin data were compared with cyanobacteria abundance- and chlorophyll-based World Health Organization (WHO) thresholds and mouse toxicity data to evaluate potential recreational risks. Cylindrospermopsins, microcystins, and saxitoxins were detected (ELISA) in 4.0, 32, and 7.7% of samples with mean concentrations of 0.56, 3.0, and 0.061μg/L, respectively (detections only). Co-occurrence of the three cyanotoxin classes was rare (0.32%) when at least one toxin was detected. Cyanobacteria were present and dominant in 98 and 76% of samples, respectively. Potential anatoxin-, cylindrospermopsin-, microcystin-, and saxitoxin-producing cyanobacteria occurred in 81, 67, 95, and 79% of samples, respectively. Anatoxin-a and nodularin-R were detected (LC/MS/MS) in 15 and 3.7% samples (n=27). The WHO moderate and high risk thresholds for microcystins, cyanobacteria abundance, and total chlorophyll were exceeded in 1.1, 27, and 44% of samples, respectively. Complete agreement by all three WHO microcystin metrics occurred in 27% of samples. This suggests that WHO microcystin metrics based on total chlorophyll and cyanobacterial abundance can overestimate microcystin risk when compared to WHO microcystin thresholds. The lack of parity among the WHO thresholds was expected since chlorophyll is common amongst all phytoplankton and not all cyanobacteria produce microcystins.
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Affiliation(s)
- Keith A Loftin
- U.S. Geological Survey, Organic Geochemistry Research Laboratory, Kansas Water Science Center, Lawrence, KS 66049, USA.
| | - Jennifer L Graham
- U.S. Geological Survey, Kansas Water Science Center, Lawrence, KS 66049, USA.
| | - Elizabeth D Hilborn
- U.S. Environmental Protection Agency, Office of Research and Development, NHEERL, Chapel Hill, NC 27599, USA.
| | - Sarah C Lehmann
- U.S. Environmental Protection Agency, Office of Wetlands, Oceans, and Watersheds, Ariel Rios Bldg., 1200 Pennsylvania Ave., N.W., Mail Code 4503T, Washington, DC 20460, USA.
| | - Michael T Meyer
- U.S. Geological Survey, Organic Geochemistry Research Laboratory, Kansas Water Science Center, Lawrence, KS 66049, USA.
| | - Julie E Dietze
- U.S. Geological Survey, Organic Geochemistry Research Laboratory, Kansas Water Science Center, Lawrence, KS 66049, USA.
| | - Christopher B Griffith
- U.S. Geological Survey, Organic Geochemistry Research Laboratory, Kansas Water Science Center, Lawrence, KS 66049, USA.
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Kim JE, Choi JH, Colas M, Kim DH, Lee H. Gold-based hybrid nanomaterials for biosensing and molecular diagnostic applications. Biosens Bioelectron 2016; 80:543-559. [DOI: 10.1016/j.bios.2016.02.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/23/2016] [Accepted: 02/06/2016] [Indexed: 10/22/2022]
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Li X, Cheng R, Shi H, Tang B, Xiao H, Zhao G. A simple highly sensitive and selective aptamer-based colorimetric sensor for environmental toxins microcystin-LR in water samples. JOURNAL OF HAZARDOUS MATERIALS 2016; 304:474-80. [PMID: 26619046 DOI: 10.1016/j.jhazmat.2015.11.016] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 09/29/2015] [Accepted: 11/09/2015] [Indexed: 05/22/2023]
Abstract
A simple and highly sensitive aptamer-based colorimetric sensor was developed for selective detection of Microcystin-LR (MC-LR). The aptamer (ABA) was employed as recognition element which could bind MC-LR with high-affinity, while gold nanoparticles (AuNPs) worked as sensing materials whose plasma resonance absorption peaks red shifted upon binding of the targets at a high concentration of sodium chloride. With the addition of MC-LR, the random coil aptamer adsorbed on Au NPs altered into regulated structure to form MC-LR-aptamer complexes and broke away from the surface of Au NPs, leading to the aggregation of AuNPs, and the color converted from red to blue due to the interparticle plasmon coupling. Results showed that our aptamer-based colorimetric sensor exhibited rapid and sensitive detection performance for MC-LR with linear range from 0.5 nM to 7.5 μM and the detection limit reached 0.37 nM. Meanwhile, the pollutants usually coexisting with MC-LR in pollutant water samples had not demonstrated disturbance for detecting of MC-LR. The mechanism was also proposed suggesting that high affinity interaction between aptamer and MC-LR significantly enhanced the sensitivity and selectivity for MC-LR detection. Besides, the established method was utilized in analyzing real water samples and splendid sensitivity and selectivity were obtained as well.
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Affiliation(s)
- Xiuyan Li
- Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Ruojie Cheng
- Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Huijie Shi
- Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Bo Tang
- Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Hanshuang Xiao
- Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China
| | - Guohua Zhao
- Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, People's Republic of China.
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Dubey A, Mailapalli DR. Nanofertilisers, Nanopesticides, Nanosensors of Pest and Nanotoxicity in Agriculture. SUSTAINABLE AGRICULTURE REVIEWS 2016. [DOI: 10.1007/978-3-319-26777-7_7] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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40
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Lim SA, Ahmed MU. Electrochemical immunosensors and their recent nanomaterial-based signal amplification strategies: a review. RSC Adv 2016. [DOI: 10.1039/c6ra00333h] [Citation(s) in RCA: 121] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In recent years, tremendous advances have been made in biosensors based on nanoscale electrochemical immunosensors for use in the fields of agriculture, food safety, biomedicine, quality control, and environmental and industrial monitoring.
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Affiliation(s)
- Syazana Abdullah Lim
- Environmental and Life Sciences Programme
- Faculty of Science
- Universiti Brunei Darussalam
- Gadong
- Brunei Darussalam
| | - Minhaz Uddin Ahmed
- Biosensors and Biotechnology Laboratory
- Chemical Science Programme
- Faculty of Science
- Universiti Brunei Daruusalam
- Gadong
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Mankiewicz-Boczek J, Karwaciak I, Ratajewski M, Gągała I, Jurczak T, Zalewski M, Pułaski Ł. Application of cellular biosensors for detection of atypical toxic bioactivity in microcystin-containing cyanobacterial extracts. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 168:1-10. [PMID: 26398929 DOI: 10.1016/j.aquatox.2015.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 09/04/2015] [Accepted: 09/08/2015] [Indexed: 06/05/2023]
Abstract
Despite the focus of most ecotoxicological studies on cyanobacteria on a select group of cyanotoxins, especially microcystins, a growing body of evidence points to the involvement of other cyanobacterial metabolites in deleterious health effects. In the present study, original, self-developed reporter gene-based cellular biosensors, detecting activation of the main human xenobiotic stress response pathways, PXR and NFkappaB, were applied to detect novel potentially toxic bioactivities in extracts from freshwater microcystin-producing cyanobacterial blooms. Crude and purified extracts from cyanobacteria containing varying levels of microcystins, and standard microcystin-LR were tested. Two cellular biosensor types applied in this study, called NHRTOX (detecting PXR activation) and OXIBIOS (detecting NFkappaB activation), successfully detected potentially toxic or immunomodulating bioactivities in cyanobacterial extracts. The level of biosensor activation was comparable to control cognate environmental toxins. Despite the fact that extracts were derived from microcystin-producing cyanobacterial blooms and contained active microcystins, biosensor-detected bioactivities were shown to be unrelated to microcystin levels. Experimental results suggest the involvement of environmental toxins (causing a response in NHRTOX) and lipopolysaccharides (LPS) or other cell wall components (causing a response in OXIBIOS) in the potentially harmful bioactivity of investigated extracts. These results demonstrate the need for further identification of cyanobacterial metabolites other than commonly studied cyanotoxins as sources of health risk, show the usefulness of cellular biosensors for this purpose and suggest a novel, more holistic approach to environmental monitoring.
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Affiliation(s)
- Joanna Mankiewicz-Boczek
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 3 Tylna, 90-364 Łódź, Poland; Department of Applied Ecology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha, 90-237 Łódź, Poland.
| | - Iwona Karwaciak
- Laboratory of Transcriptional Regulation, Institute of Medical Biology of the Polish Academy of Sciences, 106 Lodowa, 93-232 Łódź, Poland
| | - Marcin Ratajewski
- Laboratory of Transcriptional Regulation, Institute of Medical Biology of the Polish Academy of Sciences, 106 Lodowa, 93-232 Łódź, Poland
| | - Ilona Gągała
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 3 Tylna, 90-364 Łódź, Poland
| | - Tomasz Jurczak
- Department of Applied Ecology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha, 90-237 Łódź, Poland
| | - Maciej Zalewski
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 3 Tylna, 90-364 Łódź, Poland
| | - Łukasz Pułaski
- Laboratory of Transcriptional Regulation, Institute of Medical Biology of the Polish Academy of Sciences, 106 Lodowa, 93-232 Łódź, Poland; Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha, 90-237 Łódź, Poland.
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Development of Ionic Liquid Modified Disposable Graphite Electrodes for Label-Free Electrochemical Detection of DNA Hybridization Related to Microcystis spp. SENSORS 2015; 15:22737-49. [PMID: 26371004 PMCID: PMC4610473 DOI: 10.3390/s150922737] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/20/2015] [Accepted: 08/31/2015] [Indexed: 11/17/2022]
Abstract
In this present study, ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate (IL)) modified pencil graphite electrode (IL-PGEs) was developed for electrochemical monitoring of DNA hybridization related to Microcystis spp. (MYC). The characterization of IL-PGEs was performed using microscopic and electrochemical techniques. DNA hybridization related to MYC was then explored at the surface of IL-PGEs using differential pulse voltammetry (DPV) technique. After the experimental parameters were optimized, the sequence-selective DNA hybridization related to MYC was performed in the case of hybridization between MYC probe and its complementary DNA target, noncomplementary (NC) or mismatched DNA sequence (MM), or and in the presence of mixture of DNA target: NC (1:1) and DNA target: MM (1:1).
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Proteasome as a Molecular Target of Microcystin-LR. Toxins (Basel) 2015; 7:2221-31. [PMID: 26090622 PMCID: PMC4488699 DOI: 10.3390/toxins7062221] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 05/27/2015] [Accepted: 06/12/2015] [Indexed: 11/17/2022] Open
Abstract
Proteasome degrades proteins in eukaryotic cells. As such, the proteasome is crucial in cell cycle and function. This study proved that microcystin-LR (MC-LR), which is a toxic by-product of algal bloom, can target cellular proteasome and selectively inhibit proteasome trypsin-like (TL) activity. MC-LR at 1 nM can inhibit up to 54% of the purified 20S proteasome TL activity and 43% of the proteasome TL activity in the liver of the cyprinid rare minnow (Gobiocypris rarus). Protein degradation was retarded in GFP-CL1-transfected PC-3 cells because MC-LR inhibited the proteasome TL activity. Docking studies indicated that MC-LR blocked the active site of the proteasome β2 subunit; thus, the proteasome TL activity was inhibited. In conclusion, MC-LR can target proteasome, selectively inhibit proteasome TL activity, and retard protein degradation. This study may be used as a reference of future research on the toxic mechanism of MC-LR.
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44
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Singh S, Rai PK, Chau R, Ravi AK, Neilan BA, Asthana RK. Temporal variations in microcystin-producing cells and microcystin concentrations in two fresh water ponds. WATER RESEARCH 2015; 69:131-142. [PMID: 25463934 DOI: 10.1016/j.watres.2014.11.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 11/09/2014] [Accepted: 11/11/2014] [Indexed: 06/04/2023]
Abstract
The relationship between microcystin production, microcystin-producing cyanobacteria, including Microcystis spp., and various biological and physicochemical parameters in Sankuldhara and Lakshmikund, situated in the same geographical area was studied over a period of 1.5 years. Seasonal variation in cyanobacterial 16S rRNA, Microcystis spp. 16S rRNA, mcyA and mcyB genes were quantitatively determined by real-time PCR. Microcystis was the dominant microcystin producer in both study sites constituting 67% and 97% of the total microcystin-producing cyanobacteria at Sankuldhara and Lakshmikund, respectively. Microcystin concentrations were 2.19-39.60 μg/L and 15.22-128.14 μg/L at Sankuldhara and Lakshmikund, respectively, as determined by LC-MS. Principal component analysis revealed a strong positive correlation between microcystin concentration and the copy number of mcyA and mcyB, chlorophyll a and cyanobacterial biomass at both sites. The higher microcystin concentrations in Lakshmikund pond were attributed to the high copy number of mcy genes present coupled with the pond's eutrophication status, as indicated by high total algal biomass, high chlorophyll a content, high nutrient load and low DO. Therefore, a significant difference in microcystin concentrations, correlating with these various biological and physicochemical parameters, confirms the importance of local environmental variables in the overall regulation of microcystins production.
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Affiliation(s)
- Shweta Singh
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi 221005, India; School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Pankaj Kumar Rai
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi 221005, India
| | - Rocky Chau
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Alok Kumar Ravi
- Occular Biochemistry, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Brett A Neilan
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW 2052, Australia
| | - Ravi Kumar Asthana
- Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi 221005, India.
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Liu L, Xing C, Yan H, Kuang H, Xu C. Development of an ELISA and immunochromatographic strip for highly sensitive detection of microcystin-LR. SENSORS (BASEL, SWITZERLAND) 2014; 14:14672-85. [PMID: 25120158 PMCID: PMC4179011 DOI: 10.3390/s140814672] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/03/2014] [Accepted: 08/06/2014] [Indexed: 01/16/2023]
Abstract
A monoclonal antibody for microcystin-leucine-arginine (MC-LR) was produced by cell fusion. The immunogen was synthesized in two steps. First, ovalbumin/ bovine serum albumin was conjugated with 6-acetylthiohexanoic acid using a carbodiimide EDC (1-ethyl-3-[3-dimethylaminopropyl]carbodiimide hydrochloride)/ NHS (N-hydroxysulfosuccinimide) reaction. After dialysis, the protein was reacted with MC-LR based on a free radical reaction under basic solution conditions. The protein conjugate was used for immunization based on low volume. The antibodies were identified by indirect competitive (ic)ELISA and were subjected to tap water and lake water analysis. The concentration causing 50% inhibition of binding of MC-LR (IC50) by the competitive indirect ELISA was 0.27 ng/mL. Cross-reactivity to the MC-RR, MC-YR and MC-WR was good. The tap water and lake water matrices had no effect on the detection limit. The analytical recovery of MC-LR in the water samples in the icELISA was 94%-110%. Based on this antibody, an immunochromatographic biosensor was developed with a cut-off value of 1 ng/mL, which could satisfy the requirement of the World Health Organization for MC-LR detection in drinking water. This biosensor could be therefore be used as a fast screening tool in the field detection of MC-LR.
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Affiliation(s)
- Liqiang Liu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, China.
| | - Changrui Xing
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, China.
| | - Huijuan Yan
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, China.
| | - Hua Kuang
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, China.
| | - Chuanlai Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, JiangSu 214122, China.
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46
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Eissa S, Ng A, Siaj M, Zourob M. Label-free voltammetric aptasensor for the sensitive detection of microcystin-LR using graphene-modified electrodes. Anal Chem 2014; 86:7551-7. [PMID: 25011536 DOI: 10.1021/ac501335k] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The development of successful biosensing platforms is highly dependent upon the biorecognition properties of the recognition receptor and the sensitivity of the transducer of the binding signal. The integration of the high affinity and specificity of DNA aptamers with the unique properties of the carbon nanomaterial graphene offers an excellent avenue for sensitive and selective biosensing architectures. In this work, a highly sensitive and selective aptasensor which utilizes an unlabeled DNA aptamer assembled on a graphene electrode for microcystin-LR detection was developed. A facile strategy was used for the aptasensor fabrication on the basis of the noncovalent assembly of DNA aptamer on graphene-modified screen printed carbon electrodes. Assembly of the DNA aptamer on the graphene-modified electrodes caused a marked drop in the square wave voltammetric reduction signal of the [Fe(CN)6](4-/3-) redox couple. The presence of microcystin-LR, on the other hand, caused a dose-responsive increase in peak current, allowing the quantification of microcystin-LR through the measurement of peak current change. Under optimal conditions, the detection limit of the developed aptasensor was 1.9 pM in buffer, a concentration much lower than those offered by previously reported biosensors for microcystin-LR. The developed aptasensor also exhibited excellent selectivity for microcystin-LR with no detectable cross-reactivity to okadaic acid, microcystin-LA, and microcystin-YR. Moreover, the proposed aptasensor has been applied for the analysis of spiked tap water and fish samples showing good recovery percentages. This novel, simple, high-performance, and low-cost detection platform would facilitate the routine monitoring of microcystin-LR in real samples.
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Affiliation(s)
- Shimaa Eissa
- Institut National de la Recherche Scientifique, Centre - Énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel Boulet, Varennes, Québec J3X 1S2, Canada
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47
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Xiang A, Lei X, Ren F, Zang L, Wang Q, Zhang J, Lu Z, Guo Y. An aptamer-based immunoassay in microchannels of a portable analyzer for detection of microcystin-leucine-arginine. Talanta 2014; 130:363-9. [PMID: 25159422 DOI: 10.1016/j.talanta.2014.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 06/29/2014] [Accepted: 07/02/2014] [Indexed: 12/22/2022]
Abstract
The rapid detection of microcystin-leucine-arginine (MC-LR), the most highly toxic among MCs, is significantly important to environmental and human health protection and prevention of MC-LR from being used as a bioweapon. Although aptamers offer higher affinity, specificity, and stability with MC-LR than antibodies in the immunodetection of MC-LR due to steric hindrance between two antibodies and limited epitopes of MC-LR for use in a sandwich immunoassay, no sandwich immunoassay using an aptmer has been developed for MC-LR detection. This study is aimed at developing an aptamer-antibody immunoassay (AAIA) to detect MC-LR using a portable analyzer. The aptamers were immobilized onto the glass surface of a microchamber to capture MC-LR. MC-LR and horseradish peroxidase (HRP)-labeled antibody were pulled into the microchamber to react with the immobilized aptamer. The chemiluminescence (CL) catalyzed by HRP was tested by a photodiode-based portable analyzer. MC-LR at 0.5-4.0 μg/L was detected quantitatively by the AAIA, with a CL signal sensitivity of 0.3 μg/L. The assay took less than 35 min for a single sample and demonstrated a high specificity, detecting only MC-LR, but not MC-LA, MC-YR, or nodularin-R. The recovery of two spiked real environmental samples calculated as 94.5-112.7%. Therefore, this AAIA was proved to be a rapid and simple method to detect MC-LR in the field by a single analyst.
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Affiliation(s)
- An Xiang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, the Fourth Military Medical University, 169 West Changle Road, Xi׳an 710032, People׳s Republic of China
| | - Xiaoying Lei
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, the Fourth Military Medical University, 169 West Changle Road, Xi׳an 710032, People׳s Republic of China
| | - Fengling Ren
- School of public health, Xi׳an Jiaotong University, Xi׳an 710032, People׳s Republic of China
| | - Liuqin Zang
- Key Laboratory of Biomedical Information Engineering, Ministry of Education, School of Life Science and Technology, Xi׳an Jiaotong University, Xi׳an 710032, People׳s Republic of China
| | - Qin Wang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, the Fourth Military Medical University, 169 West Changle Road, Xi׳an 710032, People׳s Republic of China
| | - Ju Zhang
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, the Fourth Military Medical University, 169 West Changle Road, Xi׳an 710032, People׳s Republic of China
| | - Zifan Lu
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, the Fourth Military Medical University, 169 West Changle Road, Xi׳an 710032, People׳s Republic of China.
| | - Yanhai Guo
- State Key Laboratory of Cancer Biology, Department of Pharmacogenomics, School of Pharmacy, the Fourth Military Medical University, 169 West Changle Road, Xi׳an 710032, People׳s Republic of China.
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Yáñez-Sedeño P, Agüí L, Villalonga R, Pingarrón JM. Biosensors in forensic analysis. A review. Anal Chim Acta 2014; 823:1-19. [PMID: 24746348 DOI: 10.1016/j.aca.2014.03.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 03/09/2014] [Accepted: 03/11/2014] [Indexed: 02/04/2023]
Abstract
Forensic analysis is an important branch of modern Analytical Chemistry with many legal and socially relevant implications. Biosensors can play an important role as efficient tools in this field considering their well known advantages of sensitivity, selectivity, easy functioning, affordability and capability of miniaturization and automation. This article reviews the latest advances in the use of biosensors for forensic analysis. The different methodologies for the transduction of the produced biological events are considered and the applications to forensic toxicological analysis, classified by the nature of the target analytes, as well as those related with chemical and biological weapons critically commented. The article provides several Tables where the more relevant analytical characteristics of the selected reported methods are gathered.
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Affiliation(s)
- P Yáñez-Sedeño
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain.
| | - L Agüí
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain
| | - R Villalonga
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain
| | - J M Pingarrón
- University Complutense, Department of Analytical Chemistry, Faculty of Chemistry, Ciudad Universitaria, Madrid 28040, Spain
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49
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Immunoassays and biosensors for the detection of cyanobacterial toxins in water. SENSORS 2013; 13:15085-112. [PMID: 24196435 PMCID: PMC3871135 DOI: 10.3390/s131115085] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/11/2013] [Accepted: 10/14/2013] [Indexed: 12/16/2022]
Abstract
Algal blooms are a frequent phenomenon in nearly all kinds of fresh water. Global warming and eutrophication by waste water, air pollution and fertilizers seem to lead to an increased frequency of occurrence. Many cyanobacteria produce hazardous and quite persistent toxins, which can contaminate the respective water bodies. This may limit the use of the raw water for many purposes. The purification of the contaminated water might be quite costly, which makes a continuous and large scale treatment economically unfeasible in many cases. Due to the obvious risks of algal toxins, an online or mobile detection method would be highly desirable. Several biosensor systems have been presented in the literature for this purpose. In this review, their mode of operation, performance and general suitability for the intended purpose will be described and critically discussed. Finally, an outlook on current developments and future prospects will be given.
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50
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Pavagadhi S, Balasubramanian R. Toxicological evaluation of microcystins in aquatic fish species: current knowledge and future directions. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2013; 142-143:1-16. [PMID: 23948073 DOI: 10.1016/j.aquatox.2013.07.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 07/09/2013] [Accepted: 07/18/2013] [Indexed: 06/02/2023]
Abstract
Microcystins (MCs) are algal toxins produced intracellularly within the algal cells, and are subsequently released into the aquatic systems. An increase in the frequency and intensity of occurrence of harmful algal blooms has directed the global attention towards the presence of MCs in aquatic systems. The effects of MCs on fish have been verified in a number of studies including histological, biochemical and behavioral effects. The toxicological effects of MCs on different organs of fish are related to the exposure route (intraperitoneal injection, feeding or immersion), the mode of uptake (passive or active transport) as well as biotransformation and bioaccumulation capabilities by different organs. This paper reviews the rapidly expanding literature on the toxicological evaluation of MCs in fish from both field studies and controlled laboratory experimental investigations, integrates the current knowledge available about the mechanisms involved in MC-induced effects on fish, and points out future research directions from a cross-disciplinary perspective. In addition, the need to carry out systematic fish toxicity studies to account for possible interactions between MCs and other environmental pollutants in aquatic systems is discussed.
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Affiliation(s)
- Shruti Pavagadhi
- Singapore-Delft Water Alliance, National University of Singapore, Singapore 117576, Singapore; Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
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