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Verbist W, Breukers J, Sharma S, Rutten I, Gerstmans H, Coelmont L, Dal Dosso F, Dallmeier K, Lammertyn J. SeParate: multiway fluorescence-activated droplet sorting based on integration of serial and parallel triaging concepts. LAB ON A CHIP 2024; 24:2107-2121. [PMID: 38450543 DOI: 10.1039/d3lc01075a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Fluorescence-activated droplet sorting (FADS) has emerged as a versatile high-throughput sorting tool that is, unlike most fluorescence-activated cell sorting (FACS) platforms, capable of sorting droplet-compartmentalized cells, cell secretions, entire enzymatic reactions and more. Recently, multiplex FADS platforms have been developed for the sorting of multi-fluorophore populations towards different outlets in addition to the standard, more commonly used, 2-way FADS platform. These multiplex FADS platforms consist of either multiple 2-way junctions one after the other (i.e. serial sorters) or of one junction sorting droplets in more than 2 outlets (i.e. parallel sorters). In this work, we present SeParate, a novel platform based on integrating s̲e̲rial and p̲a̲r̲allel sorting principles for accura̲t̲e̲ multiplex droplet sorting that is able to mitigate limitations of current multiplex sorters. We show the SeParate platform and its capability in highly accurate 4-way sorting of a multi-fluorophore population into four subpopulations with the potential to expand to more. More specifically, the SeParate platform was thoroughly validated using mixed populations of fluorescent beads and picoinjected droplets, yielding sorting accuracies up to 100% and 99.9%, respectively. Finally, transfected HEK-293T cells were sorted employing two different optical setups, resulting in an accuracy up to 99.5%. SeParate's high accuracy for a diverse set of samples, including highly variable biological specimens, together with its scalability beyond the demonstrated 4-way sorting, warrants a broad applicability for multi-fluorophore studies in life sciences, environmental sciences and others.
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Affiliation(s)
- Wannes Verbist
- Department of Biosystems - Biosensors Group, KU Leuven, Willem de Croylaan 42, Box 2428, 3001 Leuven, Belgium.
| | - Jolien Breukers
- Department of Biosystems - Biosensors Group, KU Leuven, Willem de Croylaan 42, Box 2428, 3001 Leuven, Belgium.
| | - Sapna Sharma
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Molecular Vaccinology and Vaccine Discovery, KU Leuven, 3000 Leuven, Belgium
| | - Iene Rutten
- Department of Biosystems - Biosensors Group, KU Leuven, Willem de Croylaan 42, Box 2428, 3001 Leuven, Belgium.
| | - Hans Gerstmans
- Department of Biosystems - Biosensors Group, KU Leuven, Willem de Croylaan 42, Box 2428, 3001 Leuven, Belgium.
| | - Lotte Coelmont
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Molecular Vaccinology and Vaccine Discovery, KU Leuven, 3000 Leuven, Belgium
| | - Francesco Dal Dosso
- Department of Biosystems - Biosensors Group, KU Leuven, Willem de Croylaan 42, Box 2428, 3001 Leuven, Belgium.
| | - Kai Dallmeier
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Virology and Chemotherapy, Molecular Vaccinology and Vaccine Discovery, KU Leuven, 3000 Leuven, Belgium
| | - Jeroen Lammertyn
- Department of Biosystems - Biosensors Group, KU Leuven, Willem de Croylaan 42, Box 2428, 3001 Leuven, Belgium.
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2
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Li B, Qi J, Liu F, Zhao R, Arabi M, Ostovan A, Song J, Wang X, Zhang Z, Chen L. Molecular imprinting-based indirect fluorescence detection strategy implemented on paper chip for non-fluorescent microcystin. Nat Commun 2023; 14:6553. [PMID: 37848423 PMCID: PMC10582162 DOI: 10.1038/s41467-023-42244-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 10/04/2023] [Indexed: 10/19/2023] Open
Abstract
Fluorescence analysis is a fast and sensitive method, and has great potential application in trace detection of environmental toxins. However, many important environmental toxins are non-fluorescent substances, and it is still a challenge to construct a fluorescence detection method for non-fluorescent substances. Here, by means of charge transfer effect and smart molecular imprinting technology, we report a sensitive indirect fluorescent sensing mechanism (IFSM) and microcystin (MC-RR) is selected as a model target. A molecular imprinted thin film is immobilized on the surface of zinc ferrite nanoparticles (ZnFe2O4 NPs) by using arginine, a dummy fragment of MC-RR. By implementation of IFSM on the paper-based microfluidic chip, a versatile platform for the quantitative assay of MC-RR is developed at trace level (the limit of detection of 0.43 μg/L and time of 20 min) in real water samples without any pretreatment. Importantly, the proposed IFSM can be easily modified and extended for the wide variety of species which lack direct interaction with the fluorescent substrate. This work offers the potential possibility to meet the requirements for the on-site analysis and may explore potential applications of molecularly imprinted fluorescent sensors.
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Affiliation(s)
- Bowei Li
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China
| | - Ji Qi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China.
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China.
| | - Feng Liu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China
| | - Rongfang Zhao
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China
| | - Maryam Arabi
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China
| | - Abbas Ostovan
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China
| | - Jinming Song
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China.
- CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, 266071, Qingdao, China.
- Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, 266237, Qingdao, China.
| | - Xiaoyan Wang
- School of Pharmacy, Binzhou Medical University, 264003, Yantai, China
| | - Zhiyang Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, 264003, Yantai, China.
- Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071, Qingdao, China.
- Laboratory for Marine Biology and Biotechnology, Pilot National Laboratory for Marine Science and Technology, 266237, Qingdao, China.
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3
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Liu Y, Li B, Zhang H, Liu Y, Xie P. Participation of fluorescence technology in the cross-disciplinary detection of microcystins. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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4
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Min X, Huang S, Yuan C. Dual-color quantum dots nanobeads based suspension microarray for simultaneous detection of dual prostate specific antigens. Anal Chim Acta 2022; 1204:339704. [DOI: 10.1016/j.aca.2022.339704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/17/2022] [Accepted: 03/07/2022] [Indexed: 11/28/2022]
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5
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Ravi P, Ganesan M. Quantum Dots as Biosensors in the Determination of Biochemical Parameters in Xenobiotic Exposure and Toxins. ANAL SCI 2021; 37:661-671. [PMID: 33390416 DOI: 10.2116/analsci.20scr03] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Quantum dots (QDs) have been exploited for a range of scientific applications where the analytes can be expected to have significant photoluminescent properties. Previously, the applications of QDs as nanosensors for the detection of toxics in biospecimens, especially in cases of poisoning, have been discussed. This review focuses on the applications of QDs as biosensors for the detection of phytotoxins, vertebrate and invertebrate toxins, and microbial toxins present in biospecimens. Further, the role of QDs in the measurement of biochemical parameters of patient/victim as an indirect method of poison detection is also highlighted.
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Affiliation(s)
- Poorvisha Ravi
- Toxicology Division, Regional Forensic Science Laboratory, Forensic Sciences Department
| | - Muthupandian Ganesan
- Toxicology Division, Regional Forensic Science Laboratory, Forensic Sciences Department
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6
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Jarockyte G, Karabanovas V, Rotomskis R, Mobasheri A. Multiplexed Nanobiosensors: Current Trends in Early Diagnostics. SENSORS (BASEL, SWITZERLAND) 2020; 20:E6890. [PMID: 33276535 PMCID: PMC7729484 DOI: 10.3390/s20236890] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/28/2020] [Accepted: 11/30/2020] [Indexed: 02/07/2023]
Abstract
The ever-growing demand for fast, cheap, and reliable diagnostic tools for personalised medicine is encouraging scientists to improve existing technology platforms and to create new methods for the detection and quantification of biomarkers of clinical significance. Simultaneous detection of multiple analytes allows more accurate assessment of changes in biomarker expression and offers the possibility of disease diagnosis at the earliest stages. The concept of multiplexing, where multiple analytes can be detected in a single sample, can be tackled using several types of nanomaterial-based biosensors. Quantum dots are widely used photoluminescent nanoparticles and represent one of the most frequent choices for different multiplex systems. However, nanoparticles that incorporate gold, silver, and rare earth metals with their unique optical properties are an emerging perspective in the multiplexing field. In this review, we summarise progress in various nanoparticle applications for multiplexed biomarkers.
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Affiliation(s)
- Greta Jarockyte
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Santariskiu 5, LT-08406 Vilnius, Lithuania; (G.J.); (A.M.)
- Biomedical Physics Laboratory, National Cancer Institute, Baublio 3b, LT-08406 Vilnius, Lithuania;
| | - Vitalijus Karabanovas
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Santariskiu 5, LT-08406 Vilnius, Lithuania; (G.J.); (A.M.)
- Biomedical Physics Laboratory, National Cancer Institute, Baublio 3b, LT-08406 Vilnius, Lithuania;
| | - Ricardas Rotomskis
- Biomedical Physics Laboratory, National Cancer Institute, Baublio 3b, LT-08406 Vilnius, Lithuania;
| | - Ali Mobasheri
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Santariskiu 5, LT-08406 Vilnius, Lithuania; (G.J.); (A.M.)
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, FI-90014 Oulu, Finland
- Departments of Orthopedics, Rheumatology and Clinical Immunology, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands
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7
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On-bead enzyme-catalyzed signal amplification for the high-sensitive detection of disease biomarkers. Methods Enzymol 2020. [PMID: 31931985 DOI: 10.1016/bs.mie.2019.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
The high-sensitive and rapid detection of critical biomarkers, e.g., disease-related nucleic acids and proteins, is always desired. Compared with the routine homogenous detection strategies, the on-bead flow cytometry (FCM)-based assays have drawn a lot of interests owing to their unique advantages. On one hand, microbeads (MBs) are employed for the enrichment of fluorescent signals, allowing the size encoding for multiplexed detection of biomarkers. On the other hand, FCM enables the fast read-out of the total fluorescent signals enriched on the MBs and the decoding of MBs' size information. For an improved sensitivity and versatile application scenarios, the signal amplification on MBs is required. However, the enzyme-catalyzed on-bead reactions remain challenging owing to the critical reaction conditions on the MBs/solution interface. Toward the high-sensitive detection of target biomolecules in real-samples, a series of on-bead enzyme-catalyzed signal amplification strategies have been developed. After careful optimization of the reaction conditions, the proposed sensors are proven to have ultra-high sensitivities to fulfill the requirement of real-sample detection.
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8
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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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9
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Development and validation of a multianalyte immunoassay for the quantification of environmental pollutants in seawater samples from the Catalonia coastal area. Anal Bioanal Chem 2019; 411:5897-5907. [DOI: 10.1007/s00216-019-01971-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/23/2019] [Accepted: 06/07/2019] [Indexed: 12/11/2022]
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10
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Sarma D, Carl P, Climent E, Schneider RJ, Rurack K. Multifunctional Polystyrene Core/Silica Shell Microparticles with Antifouling Properties for Bead-Based Multiplexed and Quantitative Analysis. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1321-1334. [PMID: 30507151 DOI: 10.1021/acsami.8b10306] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Commercial bead-based assays are commonly built upon polystyrene particles. The polymeric carrier can be encoded with organic dyes and has ideal material properties for cytometric applications such as low density and high refractive index. However, functional groups are conventionally integrated during polymerization and subsequent modification is limited to the reactivity of those groups. Additionally, polystyrene as the core material leads to many hydrophobic areas still being present on the beads' surfaces even after functionalization, rendering the particles prone to nonspecific adsorption during an application. The latter calls for several washing steps and the use of additives in (bio)analytical assays. In this contribution, we show how these limitations can be overcome by using monodisperse polystyrene (PS) core/silica (SiO2) shell particles (SiO2@PS). Two different hydrophobic BODIPY (boron-dipyrromethene) dyes were encapsulated inside a poly(vinylpyrrolidone) (PVP) -stabilized polystyrene core in different concentrations to create 5-plex arrays in two separate detection channels of a cytometer. A subsequent modification of the silica shell with an equimolar APTES/PEGS (aminopropyltriethoxysilane/polyethylene glycol silane) blend added multifunctional properties to the hybrid core/shell microparticles in a single step: APTES provides amino groups for the attachment of a caffeine derivative (as a hapten) to create antigen-coupled microspheres; the PEG moiety effectively suppresses nonspecific binding of antibodies, endowing the surface with antifouling properties. The particles were applied in a competitive fluorescence immunoassay in suspension, and a highly selective wash-free assay for the detection of caffeine in beverages was developed as a proof of concept.
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Affiliation(s)
- Dominik Sarma
- Department of Analytical Chemistry; Reference Materials , Bundesanstalt für Materialforschung und -prüfung (BAM) , Richard-Willstätter-Straße 11 , 12489 Berlin , Germany
- Department of Chemistry , Humboldt-Universität zu Berlin , Brook-Taylor-Straße 2 , 12489 Berlin , Germany
| | - Peter Carl
- Department of Analytical Chemistry; Reference Materials , Bundesanstalt für Materialforschung und -prüfung (BAM) , Richard-Willstätter-Straße 11 , 12489 Berlin , Germany
- Department of Chemistry , Humboldt-Universität zu Berlin , Brook-Taylor-Straße 2 , 12489 Berlin , Germany
| | - Estela Climent
- Department of Analytical Chemistry; Reference Materials , Bundesanstalt für Materialforschung und -prüfung (BAM) , Richard-Willstätter-Straße 11 , 12489 Berlin , Germany
| | - Rudolf J Schneider
- Department of Analytical Chemistry; Reference Materials , Bundesanstalt für Materialforschung und -prüfung (BAM) , Richard-Willstätter-Straße 11 , 12489 Berlin , Germany
- Technische Universität Berlin , Straße des 17. Juni 135 , 10623 Berlin , Germany
| | - Knut Rurack
- Department of Analytical Chemistry; Reference Materials , Bundesanstalt für Materialforschung und -prüfung (BAM) , Richard-Willstätter-Straße 11 , 12489 Berlin , Germany
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11
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Walper SA, Lasarte Aragonés G, Sapsford KE, Brown CW, Rowland CE, Breger JC, Medintz IL. Detecting Biothreat Agents: From Current Diagnostics to Developing Sensor Technologies. ACS Sens 2018; 3:1894-2024. [PMID: 30080029 DOI: 10.1021/acssensors.8b00420] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Although a fundamental understanding of the pathogenicity of most biothreat agents has been elucidated and available treatments have increased substantially over the past decades, they still represent a significant public health threat in this age of (bio)terrorism, indiscriminate warfare, pollution, climate change, unchecked population growth, and globalization. The key step to almost all prevention, protection, prophylaxis, post-exposure treatment, and mitigation of any bioagent is early detection. Here, we review available methods for detecting bioagents including pathogenic bacteria and viruses along with their toxins. An introduction placing this subject in the historical context of previous naturally occurring outbreaks and efforts to weaponize selected agents is first provided along with definitions and relevant considerations. An overview of the detection technologies that find use in this endeavor along with how they provide data or transduce signal within a sensing configuration follows. Current "gold" standards for biothreat detection/diagnostics along with a listing of relevant FDA approved in vitro diagnostic devices is then discussed to provide an overview of the current state of the art. Given the 2014 outbreak of Ebola virus in Western Africa and the recent 2016 spread of Zika virus in the Americas, discussion of what constitutes a public health emergency and how new in vitro diagnostic devices are authorized for emergency use in the U.S. are also included. The majority of the Review is then subdivided around the sensing of bacterial, viral, and toxin biothreats with each including an overview of the major agents in that class, a detailed cross-section of different sensing methods in development based on assay format or analytical technique, and some discussion of related microfluidic lab-on-a-chip/point-of-care devices. Finally, an outlook is given on how this field will develop from the perspective of the biosensing technology itself and the new emerging threats they may face.
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Affiliation(s)
- Scott A. Walper
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Guillermo Lasarte Aragonés
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Kim E. Sapsford
- OMPT/CDRH/OIR/DMD Bacterial Respiratory and Medical Countermeasures Branch, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
| | - Carl W. Brown
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- College of Science, George Mason University Fairfax, Virginia 22030, United States
| | - Clare E. Rowland
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
- National Research Council, Washington, D.C. 20036, United States
| | - Joyce C. Breger
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C. 20375, United States
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12
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Sanchis A, Salvador JP, Marco MP. Multiplexed immunochemical techniques for the detection of pollutants in aquatic environments. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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13
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Sanchis A, Salvador JP, Campbell K, Elliott CT, Shelver WL, Li QX, Marco MP. Fluorescent microarray for multiplexed quantification of environmental contaminants in seawater samples. Talanta 2018; 184:499-506. [PMID: 29674074 DOI: 10.1016/j.talanta.2018.03.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/12/2018] [Accepted: 03/14/2018] [Indexed: 01/10/2023]
Abstract
The development of a fluorescent multiplexed microarray platform able to detect and quantify a wide variety of pollutants in seawater is reported. The microarray platform has been manufactured by spotting 6 different bioconjugate competitors and it uses a cocktail of 6 monoclonal or polyclonal antibodies raised against important families of chemical pollutants such as triazine biocide (i.e. Irgarol 1051®), sulfonamide and chloramphenicol antibiotics, polybrominated diphenyl ether flame-retardant (PBDE, i.e. BDE-47), hormone (17β-estradiol), and algae toxin (domoic acid). These contaminants were selected as model analytes, however, the platform developed has the potential to detect a broader group of compounds based on the cross-reactivity of the immunoreagents used. The microarray chip is able to simultaneously determine these families of contaminants directly in seawater samples reaching limits of detection close to the levels found in contaminated areas (Irgarol 1051®, 0.19 ± 0,06 µg L-1; sulfapyridine, 0.17 ± 0.07 µg L-1; chloramphenicol, 0.11 ± 0.03 µg L-1; BDE-47, 2.71 ± 1.13 µg L-1; 17β-estradiol, 0.94 ± 0.30 µg L-1 and domoic acid, 1.71 ± 0.30 µg L-1). Performance of the multiplexed microarray chip was assessed by measuring 38 blind spiked seawater samples containing either one of these contaminants or mixtures of them. The accuracy found was very good and the coefficient of variation was < 20% in all the cases. No sample pre-treatment was necessary, and the results could be obtained in just 1 h 30 min. The microarray shows high sample throughput capabilities, being able to measure simultaneously more than 68 samples and screen them for a significant number of chemical contaminants of interest in environmental screening programs.
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Affiliation(s)
- Ana Sanchis
- Nanobiotechnology for diagnostics (Nb4D), Department of Chemical and Biomolecular Nanotechnology, Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - J-Pablo Salvador
- Nanobiotechnology for diagnostics (Nb4D), Department of Chemical and Biomolecular Nanotechnology, Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
| | - Katrina Campbell
- Institute of Agri-Food and Land Use (IAFLU), School of Biological Sciences, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Christopher T Elliott
- Institute of Agri-Food and Land Use (IAFLU), School of Biological Sciences, Queen's University Belfast, David Keir Building, Stranmillis Road, Belfast BT9 5AG, Northern Ireland, United Kingdom
| | - Weilin L Shelver
- USDA-ARS, Red River Valley Agricultural Research Center, Biosciences Research Laboratory, Fargo, ND, USA
| | - Qing X Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, USA
| | - M-Pilar Marco
- Nanobiotechnology for diagnostics (Nb4D), Department of Chemical and Biomolecular Nanotechnology, Institute for Advanced Chemistry of Catalonia (IQAC) of the Spanish Council for Scientific Research (CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
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14
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Fan Z, Li Z, Liu S, Yang F, Bian Z, Wang Y, Tang G, Zhao Q, Deng H, Liu S. Rapid fluorescence immunoassay of benzo[a]pyrene in mainstream cigarette smoke based on a dual-functional antibody–DNA conjugate. RSC Adv 2018; 8:29562-29569. [PMID: 35547323 PMCID: PMC9085264 DOI: 10.1039/c8ra04915g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 08/13/2018] [Indexed: 11/24/2022] Open
Abstract
Benzo[a]pyrene (BaP) is considered as one of the most carcinogenic pollutants in cigarette smoke. The development of simple and sensitive BaP screening methods can help assess the risk of cigarette exposure to the human body rapidly. In this report, a rapid fluorescence immunoassay (RFIA) method for the detection of BaP is proposed, the core of which is the synthesis of bifunctional covalent antibody–DNA conjugates for target recognition and signal amplification. Based on the optimization of the SYBR Green I and PAH–BSA concentrations, as well as DNA–antibody immune complex's dilution in the RFIA system, a serial dilution of BaP was tested with this method. The results showed that the linear working range of the RFIA for BaP is 0.46 to 333 ng mL−1, which is much wider than traditional ELISA. The detection limit was 0.32 ng mL−1, which was more sensitive than other methods such as the redox-labeled electrochemical immunoassay method and the competitive piezoelectric biosensor. Then the cross-reactions (CR) of other PAHs in cigarette smoke were evaluated using this RFIA and found that the cross-reactions of naphthalene, anthracene, and pyrene were very low (<1%). The cross-reaction in this RFIA system can be reduced by improving the specificity of the antibody. To the best of our knowledge, this is the first time that the BaP in mainstream cigarette smoke was tested; the RFIA demonstrates fast and simple experimental manipulations and better working curves and sensitivity. Benzo[a]pyrene (BaP) is considered as one of the most carcinogenic pollutants in cigarette smoke.![]()
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Affiliation(s)
- Ziyan Fan
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Zhonghao Li
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Shanshan Liu
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Fei Yang
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Zhaoyang Bian
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Ying Wang
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Gangling Tang
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Qinxiao Zhao
- School of Basic Medical Science
- Shandong University
- Jinan
- China
| | - Huimin Deng
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
| | - Shili Liu
- China National Tobacco Quality Supervision and Test Center
- Zhengzhou 450001
- China
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15
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Kong W, Yang X, Yang M, Zhou H, Ouyang Z, Zhao M. Photoluminescent nanosensors capped with quantum dots for high-throughput determination of trace contaminants: Strategies for enhancing analytical performance. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.07.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Rapid Detection of Ochratoxin A in Malt by Cytometric Bead Array Based on Indirect Competition Principle. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1016/s1872-2040(16)60927-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Lux G, Langer A, Pschenitza M, Karsunke X, Strasser R, Niessner R, Knopp D, Rant U. Detection of the Carcinogenic Water Pollutant Benzo[a]pyrene with an Electro-Switchable Biosurface. Anal Chem 2015; 87:4538-45. [DOI: 10.1021/acs.analchem.5b00648] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Gregor Lux
- Technische Universität
München, 85748 Garching, Germany
| | - Andreas Langer
- Technische Universität
München, 85748 Garching, Germany
- Dynamic Biosensors
GmbH, Lochhamer Strasse 15, 82152 Martinsried/Planegg, Germany
| | - Michael Pschenitza
- Institute
of Hydrochemistry and Chair of Analytical Chemistry, Technische Universität München, Marchioninistrasse 17, 81377 München, Germany
| | - Xaver Karsunke
- Institute
of Hydrochemistry and Chair of Analytical Chemistry, Technische Universität München, Marchioninistrasse 17, 81377 München, Germany
| | - Ralf Strasser
- Dynamic Biosensors
GmbH, Lochhamer Strasse 15, 82152 Martinsried/Planegg, Germany
| | - Reinhard Niessner
- Institute
of Hydrochemistry and Chair of Analytical Chemistry, Technische Universität München, Marchioninistrasse 17, 81377 München, Germany
| | - Dietmar Knopp
- Institute
of Hydrochemistry and Chair of Analytical Chemistry, Technische Universität München, Marchioninistrasse 17, 81377 München, Germany
| | - Ulrich Rant
- Dynamic Biosensors
GmbH, Lochhamer Strasse 15, 82152 Martinsried/Planegg, Germany
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18
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Quantum dot-based lab-on-a-bead system for multiplexed detection of free and total prostate-specific antigens in clinical human serum samples. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1065-75. [PMID: 25804411 DOI: 10.1016/j.nano.2015.03.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/14/2015] [Accepted: 03/03/2015] [Indexed: 11/20/2022]
Abstract
UNLABELLED An immunodiagnostic lab-on-a-bead suspension microarray based on microbeads encoded with quantum dots (QDs) has been developed and preclinically validated for multiplexed quantitative detection of prostate cancer markers in human serum samples. The sensitivity and specificity of the microarray are similar to those of "gold-standard" single-analyte ELISA. Moreover, the array has an improved immunoassay capacity, ensures quantitative detection of multiple cancer biomarkers and may be operational in a considerably wider dynamic range of concentrations. The array is characterized by reduced time and cost of analysis and is compatible with classical flow cytometers. Proof-of-concept preclinical tests ensured simultaneous quantitative determination of free and total prostate-specific antigens in human serum, with clear discrimination between the control and clinical samples. The proposed approach is flexible and paves the way to development of a wide variety of immunodiagnostic assays for multiplexed early diagnosis of various diseases. FROM THE CLINICAL EDITOR Early diagnosis of cancer can result in better prognosis for patients. Thus, the use of specific tumor markers is widely employed in clinical practice. Traditional screening methods only employ single markers. The authors here developed a microarray system based on microbeads encoded with quantum dots (QDs), which can be used for multiplexed quantitative detection. The validated results on patient samples should lead to the development of a wider variety of assays for other diseases.
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19
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20
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Weis A, Liang F, Gao J, Barnard RT, Corrie S. RNA and DNA Diagnostics on Microspheres: Current and Emerging Methods. RNA TECHNOLOGIES 2015. [DOI: 10.1007/978-3-319-17305-4_10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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21
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Lab-on-chip cytometry based on magnetoresistive sensors for bacteria detection in milk. SENSORS 2014; 14:15496-524. [PMID: 25196163 PMCID: PMC4179045 DOI: 10.3390/s140815496] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 07/14/2014] [Accepted: 08/01/2014] [Indexed: 12/11/2022]
Abstract
Flow cytometers have been optimized for use in portable platforms, where cell separation, identification and counting can be achieved in a compact and modular format. This feature can be combined with magnetic detection, where magnetoresistive sensors can be integrated within microfluidic channels to detect magnetically labelled cells. This work describes a platform for in-flow detection of magnetically labelled cells with a magneto-resistive based cell cytometer. In particular, we present an example for the validation of the platform as a magnetic counter that identifies and quantifies Streptococcus agalactiae in milk.
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22
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Zhu Y, Hong H, Xu ZP, Li Z, Cai W. Quantum dot-based nanoprobes for in vivo targeted imaging. Curr Mol Med 2014; 13:1549-67. [PMID: 24206136 DOI: 10.2174/1566524013666131111121733] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 05/30/2013] [Accepted: 10/02/2013] [Indexed: 02/06/2023]
Abstract
Fluorescent semiconductor quantum dots (QDs) have attracted tremendous attention over the last decade. The superior optical properties of QDs over conventional organic dyes make them attractive labels for a wide variety of biomedical applications, whereas their potential toxicity and instability in biological environment have puzzled scientific researchers. Much research effort has been devoted to surface modification and functionalization of QDs to make them versatile probes for biomedical applications, and significant progress has been made over the last several years. This review article aims to describe the current state-of-the-art of the synthesis, modification, bioconjugation, and applications of QDs for in vivo targeted imaging. In addition, QD-based multifunctional nanoprobes are also summarized.
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Affiliation(s)
- Y Zhu
- (W. Cai) Departments of Radiology and Medical Physics, University of Wisconsin - Madison, Room 7137, 1111 Highland Avenue, Madison, WI 53705-2275, USA.
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23
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Anfossi L, Calza P, Sordello F, Giovannoli C, Di Nardo F, Passini C, Cerruti M, Goryacheva IY, Speranskaya ES, Baggiani C. Multi-analyte homogenous immunoassay based on quenching of quantum dots by functionalized graphene. Anal Bioanal Chem 2014; 406:4841-9. [DOI: 10.1007/s00216-014-7885-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 05/02/2014] [Accepted: 05/08/2014] [Indexed: 10/25/2022]
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24
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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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