1
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Chen Y, Danchana K, Kaneta T. Comparison of protein immobilization methods with covalent bonding on paper for paper-based enzyme-linked immunosorbent assay. Anal Bioanal Chem 2024:10.1007/s00216-024-05575-4. [PMID: 39375210 DOI: 10.1007/s00216-024-05575-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 09/23/2024] [Accepted: 09/30/2024] [Indexed: 10/09/2024]
Abstract
In this study, two methods were examined to optimize the immobilization of antibodies on paper when conducting a paper-based enzyme-linked immunosorbent assay (P-ELISA). Human IgG, as a test-capture protein, was immobilized on paper via the formation of Schiff bases. Aldehyde groups were introduced onto the surface of the paper via two methods: NaIO4 and 3-aminopropyltriethoxysilane (APTS) with glutaraldehyde (APTS-glutaraldehyde). In the assay, horseradish peroxidase-conjugated anti-human IgG (HRP-anti-IgG) binds to the immobilized human IgG, and the colorimetric reaction of 3,3',5,5'-tetramethylbenzyzine (TMB) produces a blue color in the presence of H2O2 and HRP-anti-IgG as a model analyte. The immobilization of human IgG, the enzymatic reaction conditions, and the reduction of the chemical bond between the paper surface and immobilized human IgG all were optimized in order to improve both the analytical performance and the stability. In addition, the thickness of the paper was examined to stabilize the analytical signal. Consequently, the APTS-glutaraldehyde method was superior to the NaIO4 method in terms of sensitivity and reproducibility. Conversely, the reduction of imine to amine with NaBH4 proved to exert only minimal influence on sensitivity and stability, although it tended to degrade reproducibility. We also found that thick paper was preferential when using P-ELISA because a rigid paper substrate prevents distortion of the paper surface that is often caused by repeated washing processes.
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Affiliation(s)
- Yang Chen
- Department of Chemistry, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Kaewta Danchana
- Department of Chemistry, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Takashi Kaneta
- Department of Chemistry, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan.
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2
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Wang S, Wang Y, Ma J, Huang C, Chen L. Portable smartphone-assisted highly sensitive detection of mercury ions based on gold nanoparticle-modified NH 2-UiO-66 metal-organic framework. Anal Bioanal Chem 2024; 416:1001-1010. [PMID: 38097760 DOI: 10.1007/s00216-023-05090-y] [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: 08/31/2023] [Revised: 11/16/2023] [Accepted: 12/04/2023] [Indexed: 01/23/2024]
Abstract
A novel portable smartphone-assisted colorimetric method was reported for the determination of Hg2+ with good analytical performance. A Zr(IV)-based metal-organic framework functionalized with amino groups (NH2-UiO-66) has been adopted as a supporting platform to anchor gold nanoparticles (AuNPs), avoiding the migration and aggregation of AuNPs. With the addition of Hg2+, the formation of gold amalgam proved possible to enhance peroxidase-like activity of the composite (AuNPs/NH2-UiO-66), accelerating the oxidization of zymolyte 3,3',5,5'-tetramethylbenzidine (TMB). In the meantime, the color of the reaction solution turned a vivid blue, and the red, green, and blue (RGB) values of the solution color changed accordingly. On account of this strategy, the quantitative detection of Hg2+ could be achieved. After the optimization of the experiment conditions, the average color intensity (Ic) resulting from RGB values was linear related to the concentration of Hg2+ from 10 to 100 nM, accompanied with a detection limit (LOD) down to 5.4 nM calculated by 3σ/S. The successful application of the designed method has been promoted to detect Hg2+ in some water samples, displaying a great potential in practical application. Furthermore, the use of a smartphone made our proposed method simple and accurate, and thus puts forward a possible way for in situ and real-time monitoring.
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Affiliation(s)
- Shasha Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Yifei Wang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Jiping Ma
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China.
| | - Chaonan Huang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, 266520, China
| | - Lingxin Chen
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Shandong Research Center for Coastal Environmental Engineering and Technology, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China.
- School of Pharmacy, Binzhou Medical University, Yantai, 264003, China.
- College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, 312000, China.
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3
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Renzi E, Piper A, Nastri F, Merkoçi A, Lombardi A. An Artificial Miniaturized Peroxidase for Signal Amplification in Lateral Flow Immunoassays. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207949. [PMID: 36942720 DOI: 10.1002/smll.202207949] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Signal amplification strategies are widely used for improving the sensitivity of lateral flow immunoassays (LFiAs). Herein, the artificial miniaturized peroxidase Fe(III)-MimochromeVI*a (FeMC6*a), immobilized on gold nanoparticles (AuNPs), is used as a strategy to obtain catalytic signal amplification in sandwich immunoassays on lateral flow strips. The assay scheme uses AuNPs decorated with the mini-peroxidase FeMC6*a and anti-human-IgG as a detection antibody (dAb), for the detection of human-IgG, as a model analyte. Recognition of the analyte by the capture and detection antibodies is first evidenced by the appearance of a red color in the test line (TL), due to the accumulation of AuNPs. Subsequent addition of 3,3',5,5'-tetramethylbenzidine (TMB) induces an increase of the test line color, due to the TMB being converted into an insoluble colored product, catalyzed by FeMC6*a. This work shows that FeMC6*a acts as an efficient catalyst in paper, increasing the sensitivity of an LFiA up to four times with respect to a conventional LFiA. Furthermore, FeMC6*a achieves lower limits of detection that are found in control experiments where it is replaced with horseradish peroxidase (HRP), its natural counterpart. This study represents a significant proof-of-concept for the development of more sensitive LFiAs, for different analytes, based on properly designed artificial metalloenzymes.
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Affiliation(s)
- Emilia Renzi
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 21, Napoli, 80126, Italy
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Andrew Piper
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, 08193, Spain
| | - Flavia Nastri
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 21, Napoli, 80126, Italy
| | - Arben Merkoçi
- Nanobioelectronics & Biosensors Group, Institut Català de Nanociència I Nanotecnologia (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, 08193, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, Barcelona, 08010, Spain
| | - Angela Lombardi
- Department of Chemical Sciences, University of Napoli Federico II, Via Cintia, 21, Napoli, 80126, Italy
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4
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A bifunctional AuNP probe-based enzyme-linked immunosorbent assay for facile and ultrasensitive detection of trace zearalenone in coix seed. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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5
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Singh MM, Satija J. Enzyme-assisted metal nanoparticles etching based plasmonic ELISA: Progress and insights. Anal Biochem 2022; 654:114820. [PMID: 35850200 DOI: 10.1016/j.ab.2022.114820] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022]
Abstract
The unique size and shape tunable localized surface plasmon resonance (LSPR) properties of the noble metal nanoparticle have been extensively exploited to realize a variety of enzyme-based optical biosensors. Although approaches like metal film deposition, nanoparticle aggregation, and synthesis & growth of metal nanoparticles are quite useful, metal nanoparticle etching-based biosensors offer greater sensitivity, selectivity, and stability against various environmental factors which makes this strategy easy to use for field applications. This review discusses the current state-of-art of plasmonic nanoparticle etching-based enzyme-linked immunosorbent assay (ELISA) realized for visual detection of various analytes. The naked eye detection, i.e. without any optical readout device, is the additional advantage of this sensing approach that reduces the analysis cost significantly making it feasible under resource-constrained settings. This review paper provides deeper insights into biocatalytic etching mechanisms of various plasmonic nanoparticles resulting in vivid color change as a function of analyte concentration. Although nanoparticle etching-based ELISA has huge potential, steps need to be taken to realize a point-of-care (POC) nanodiagnostic before its translation to a commercial technique or product that can be achieved in near future by integrating it with microfluidics technology and other technological avenues.
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Affiliation(s)
| | - Jitendra Satija
- Centre for Nanobiotechnology, VIT, Vellore, Tamil Nadu, 632014, India.
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6
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Bai T, Wang L, Wang M, Zhu Y, Li W, Guo Z, Zhang Y. Strategic synthesis of trimetallic Au@Ag–Pt nanorattles for ultrasensitive colorimetric detection in lateral flow immunoassay. Biosens Bioelectron 2022; 208:114218. [DOI: 10.1016/j.bios.2022.114218] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 12/20/2022]
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7
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Wang Y, Xianyu Y. Nanobody and Nanozyme-Enabled Immunoassays with Enhanced Specificity and Sensitivity. SMALL METHODS 2022; 6:e2101576. [PMID: 35266636 DOI: 10.1002/smtd.202101576] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Immunoassay as a rapid and convenient method for detecting a variety of targets has attracted tremendous interest with its high specificity and sensitivity. Among the commonly used immunoassays, enzyme-linked immunosorbent assay has been widely used as a gold standard method in various fields that consists of two main components including a recognition element and an enzyme label. With the rapid advances in nanotechnology, nanobodies and nanozymes enable immunoassays with enhanced specificity and sensitivity compared with conventional antibodies and natural enzymes. This review is focused on the applications of nanobodies and nanozymes in immunoassays. Nanobodies advantage lies in their small size, high specificity, mass expression, and high stability. Nanozymes with peroxidase, phosphatase, and oxidase activities and their applications in immunoassays are highlighted and discussed in detail. In addition, the challenges and outlooks in terms of the use of nanobodies and the development of novel nanozymes in practical applications are discussed.
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Affiliation(s)
- Yidan Wang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
| | - Yunlei Xianyu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
- State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, Zhejiang, 310058, China
- Ningbo Research Institute, Zhejiang University, Ningbo, Zhejiang, 315100, China
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8
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Ge P, Yang M, Bouchard JL, Dzamko N, Lewis SJG, Halliday GM, Doran TM. Chemoselective Bioconjugation of Amyloidogenic Protein Antigens to PEGylated Microspheres Enables Detection of α-Synuclein Autoantibodies in Human Plasma. Bioconjug Chem 2022; 33:301-310. [PMID: 35020392 DOI: 10.1021/acs.bioconjchem.1c00530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The misfolding and subsequent aggregation of amyloidogenic proteins is a classic pathological hallmark of neurodegenerative diseases. Aggregates of the α-synuclein protein (αS) are implicated in Parkinson's disease (PD) pathogenesis, and naturally occurring autoantibodies to these aggregates are proposed to be potential early-stage biomarkers to facilitate the diagnosis of PD. However, upon misfolding, αS forms a multitude of quaternary structures of varying functions that are unstable ex vivo. Thus, when used as a capture agent in enzyme-linked immunosorbent assays (ELISAs), significant variance among laboratories has prevented the development of these valuable diagnostic tests. We reasoned that those conflicting results arise due to the high nonspecific binding and amyloid nucleation that are typical of ELISA platforms. In this work, we describe a multiplexed, easy-to-operate immunoassay that is generally applicable to quantify the levels of amyloid proteins and their binding partners, named Oxaziridine-Assisted Solid-phase Immunosorbent (OASIS) assay. The assay is built on a hydrophilic poly(ethylene glycol) scaffold that inhibits aggregate nucleation, which we show reduces assay variance when compared to similar ELISA measurements. To validate our OASIS assay in patient-derived samples, we measured the levels of naturally occurring antibodies against the αS monomer and oligomers in a cohort of donor plasma from patients diagnosed with PD. Using OASIS assays, we observed significantly higher titers of immunoglobulin G antibody recognizing αS oligomers in PD patients compared to those in healthy controls, while there was no significant difference in naturally occurring antibodies against the αS monomer. In addition to its development into a blood test to potentially predict or monitor PD, we anticipate that the OASIS assay will be of high utility for studies aimed at understanding protein misfolding, its pathology and symptomology in PD, and other neurodegenerative diseases.
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Affiliation(s)
- Peng Ge
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mu Yang
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jacob L Bouchard
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Nicolas Dzamko
- Brain and Mind Centre and Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Simon J G Lewis
- Parkinson's Disease Research Clinic, Brain and Mind Centre, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Glenda M Halliday
- Brain and Mind Centre and Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Todd M Doran
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States.,Institute for Translational Neuroscience, University of Minnesota, Minneapolis, Minnesota 55455, United States
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9
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Taron W, Jamnongkan W, Phetcharaburanin J, Klanrit P, Namwat N, Techasen A, Sithithaworn P, Khuntikeo N, Boonmars T, Loilome W, Ngeontae W. A fluorescence AuNPs-LISA: A new approach for Opisthorchis viverrini (Ov) antigen detection with a simple fluorescent enhancement strategy by surfactant micelle in urine samples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 254:119633. [PMID: 33744701 DOI: 10.1016/j.saa.2021.119633] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 11/25/2020] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
The colorimetric AuNPs-LISA is a new, powerful technique for the detection of Opisthorchis viverrini antigen (OvAg) in urine samples. However, the diagnostic sensitivity of the colorimetric AuNPs-LISA is powerless to screen ultralow concentrations of OvAg in urine samples in cases of early stage liver fluke infection. This work, we aimed to improve the diagnostic sensitivity of the colorimetric AuNPs-LISA by developing a new fluorescence AuNPs-LISA. O-phenylenediamine (OPD) was used as the chromogenic substrate instead of the tetramethylbenzidine (TMB) of the colorimetric AuNPs-LISA. Interestingly, the fluorescence of the OPD oxidation product by the peroxidase-like activity of labelled AuNPs can be extremely enhanced by a non-ionic surfactant, especially the Triton X-100. The proposed assay exhibited a dynamic linear detection of OvAg concentration in the range of 34.18 ng mL-1 to 273.44 ng mL-1 with the limit of detection at 36.97 ng mL-1 which the detection sensitivity enhancement around 1200-fold when comparing with the colorimetric AuNPs-LISA. This model exhibits high diagnosis sensitivity, specificity and accuracy, 91.28%, 91.75%, and 91.59%, respectively, compared to the traditional ELISA. The fluorescence AuNPs-LISA showed excellent potential for the diagnosis of OvAg in urine samples from endemic areas. This will provide an effective tool for the detection, control and elimination of human opisthorchiasis.
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Affiliation(s)
- Wichit Taron
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Wassana Jamnongkan
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Jutarop Phetcharaburanin
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Poramate Klanrit
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Nisana Namwat
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Anchalee Techasen
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Paiboon Sithithaworn
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Narong Khuntikeo
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Department of Surgery, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Thidarut Boonmars
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Watcharin Loilome
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand.
| | - Wittaya Ngeontae
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand; Research Center for Environmental and Hazardous Substance Management, Khon Kaen University, Khon Kaen, Thailand; Center of Excellence for Environmental and Hazardous Waste Management (EHWM), Bangkok, Thailand.
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10
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Fathi N, Saadati A, Hasanzadeh M, Samiei M. Chemical binding of pyrrolidinyl peptide nucleic acid (
acpcPNA‐T9
) probe with
AuNPs
toward label‐free monitoring of
miRNA
‐21: A novel biosensing platform for biomedical analysis and POC diagnostics. J Mol Recognit 2021; 34:e2893. [DOI: 10.1002/jmr.2893] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/20/2022]
Affiliation(s)
- Nazanin Fathi
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center Tehran University of Medical Sciences Tehran Iran
| | - Arezoo Saadati
- Food and Drug Safety Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Mohammad Samiei
- Faculty of Dentistry Tabriz University of Medical Sciences Tabriz Iran
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11
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Jiang C, Zhang C, Song J, Ji X, Wang W. Cytidine-gold nanoclusters as peroxidase mimetic for colorimetric detection of glutathione (GSH), glutathione disulfide (GSSG) and glutathione reductase (GR). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 250:119316. [PMID: 33418475 DOI: 10.1016/j.saa.2020.119316] [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: 08/18/2020] [Revised: 11/17/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
Abnormal levels of glutathione (GSH) and glutathione oxidized (GSSG) usually relates to some diseases, thus quantifying the amount of GSH or GSSG is of great significance. A label-free sensing assay based on the enzyme-mimicking property of Cytidine-Au nanoclusters (Cy-AuNCs) was demonstrated for colorimetric detection of GSH, GSSG and glutathione reductase (GR). Firstly, obvious blue color accompanied with an absorption peak at 652 nm was observed due to the high peroxidase-like activity of Cy-AuNCs toward 3,3',5,5'-tetramethylbenzidine (TMB). Then, in the presence of target, the mimetic activity of Cy-AuNCs could be strongly inhibited and used to achieve the visualization detection. The inhibition effect arose from the surface interaction between GSH and Cy-AuNCs. Linear relationships between absorbance response and concentration were obtained between 0 and 0.4 mM for GSH, 0-2.5 mM for GSSG and 0-0.2 U/mL for GR. The limit of detection (LOD) was calculated as low as 0.01 mM, 0.03 mM and 0.003 U/mL for GSH, GSSG and GR, respectively. Furthermore, the proposed method displayed rapid response, easy procedure and high selectivity.
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Affiliation(s)
- Cuifeng Jiang
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
| | - Cong Zhang
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, Guangxi 541004, China
| | - Juan Song
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
| | - Xiaojie Ji
- School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China.
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12
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Reis DS, de Oliveira VL, Silva ML, Paniago RM, Ladeira LO, Andrade LM. Gold nanoparticles enhance fluorescence signals by flow cytometry at low antibody concentrations. J Mater Chem B 2021; 9:1414-1423. [PMID: 33464273 DOI: 10.1039/d0tb02309d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Flow cytometry is a universally applied technique in many biological and clinical assays to evaluate cells, bacteria, parasites, and particles at a micrometre scale. More advanced flow cytometers can detect small molecules down to the nanometre scale that may identify intracellular nanostructures. Advancements in the field of nanobiotechnology have led to techniques that allow the study of cellular behaviour after exposure to nanomaterials, particularly, metal nanoparticles. The optical properties of gold nanoparticles regarding surface plasmon resonance (SPR) are established to increase the fluorescence quantum yields of several dyes working as optical antennas, enabling the enhancement of light emission in fluorescent emitters. In this work we constructed a nanoprobe using gold nanoparticles coated with primary antibody Cetuximab. Then, we investigated whether this nanoprobe labelled with secondary fluorescent antibody Alexa Fluor 488, at low concentrations, could promote fluorescent signal enhancement, associated with SPR, and detected by the flow cytometry technique. Our results showed an enhanced fluorescent signal likely due to the proximity between the extinction coefficient of gold nanoparticles and the emission peak of Alexa Fluor 488, at exceptionally low concentrations, occurring within a high level of specificity. Moreover, the nanoprobe did not alter the cellular viability suggesting gold nanoparticles as a feasible approach for cell labelling using low concentrations of secondary antibodies for routine flow cytometry applications.
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Affiliation(s)
- Daniela S Reis
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Brazil
| | | | - Misael L Silva
- Merck Life Science Research & Applied, Alphaville industrial, Barueri, Brazil
| | - Roberto M Paniago
- Departamento de Física, Nanobiomedical Research Group, Universidade Federal de Minas Gerais, Brazil.
| | - Luiz O Ladeira
- Departamento de Física, Nanobiomedical Research Group, Universidade Federal de Minas Gerais, Brazil.
| | - Lidia M Andrade
- Departamento de Física, Nanobiomedical Research Group, Universidade Federal de Minas Gerais, Brazil.
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13
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Khoris IM, Ganganboina AB, Suzuki T, Park EY. Self-assembled chromogen-loaded polymeric cocoon for respiratory virus detection. NANOSCALE 2021; 13:388-396. [PMID: 33351018 DOI: 10.1039/d0nr06893d] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Inspired by the self-assembly approach, in this work, the chromogen, 3,3',5,5'-tetramethylbenzidine (TMB), was successfully co-precipitated in aqueous solution to form collective nanoparticles (NPs) of signal molecules (TMB-NPs). Utilizing poly(lactide-co-glycolide) (PLGA) in the molecular delivery approach, the formed emulsion nanovesicle (TMB-NPs@PLGA) exhibits an enrichment of the collective signal molecules in a single antibody-antigen conjugation. A specific antibody-conjugated TMB-NPs@PLGA forms an immunocomplex sandwich structure upon the addition of influenza virus (IV)/A. The addition of dimethyl sulfoxide (DMSO) dissolves the PLGA nanovesicles, releasing the encapsulated TMB-NPs. Sequentially, the TMB-NPs release TMB molecules upon the addition of DMSO. The released TMB is catalytically oxidized by H2O2 with self-assembled protein-inorganic nanoflowers, where copper nanoflowers (CuNFs) acted as the nanozyme. The developed immunoassay demonstrates high sensitivity for IV/A with a limit of detection (LOD) as low as 32.37 fg mL-1 and 54.97 fg mL-1 in buffer and serum, respectively. For practical needs, a clinically isolated IV/A/H3N2 and spike protein of SARS-CoV-2 were detected with the LODs of 17 pfu mL-1 and 143 fg mL-1, respectively. These results show the applicability of the advanced TMB-NPs@PLGA-based colorimetric sensor for the highly sensitive detection of airborne respiratory viruses.
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Affiliation(s)
- Indra Memdi Khoris
- Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka 422-8529, Japan.
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14
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Huang Z, Liu B, Liu J. Enhancing the peroxidase-like activity and stability of gold nanoparticles by coating a partial iron phosphate shell. NANOSCALE 2020; 12:22467-22472. [PMID: 33150912 DOI: 10.1039/d0nr07055f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Using citrate-capped gold nanoparticles (AuNPs) as peroxidase-mimicking enzymes to design biosensors is hindered by their low catalytic activity and poor colloidal stability, resulting in limited sensitivity and large variations. Herein, the growth of a partial iron phosphate (FeP) shell with Fe2+ ions on citrate-capped AuNPs boosted the activity of the AuNPs by up to 20-fold. The FeP-enhanced activity was demonstrated on AuNPs of different sizes, and gold nanostars. When the FeP layer is thick enough to block the access to the Au/FeP interface, the activity was inhibited. Capping the remaining Au surface by thiol also inhibited the activity, suggesting that faster reactions occurred at the interfaces of Au/FeP. Moreover, a FeP shell can stabilize AuNPs against freezing and a high NaCl concentration of 1 M. Sensitive detection of Fe2+ was achieved with a detection limit of 0.41 μM, while no other tested transition metal phosphates enhanced the peroxidase-like activity of AuNPs.
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Affiliation(s)
- Zhicheng Huang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
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15
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Quantification of methylisomiroestrol, a phytoestrogen of Pueraria candollei, by enzyme-linked immunosorbent assay in comparison with high-performance liquid chromatography. J Pharm Biomed Anal 2020; 192:113674. [PMID: 33120305 DOI: 10.1016/j.jpba.2020.113674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/24/2020] [Accepted: 10/03/2020] [Indexed: 11/22/2022]
Abstract
Pueraria candollei is a phytoestrogen-rich herb used to treat estrogen deficiency disorders; however, quality control of P. candollei-related health products is required for consistency of clinical outcomes. Estrogenically active (+)-7-O-methylisomiroestrol could be a potential chemical marker that facilitates the prediction of the overall estrogenic activity of P. candollei. The analytical performance of ELISA using newly produced monoclonal antibodies against methylisomiroestrol was compared with HPLC analysis. The developed indirect competitive ELISA (icELISA) was highly sensitive to methylisomiroestrol for detection, with an LOQ of 2.9 ng/mL, whereas the LOQ was 1.15 μg/mL by HPLC. The results from method validation indicated acceptable precision (1.71-6.37 % and 0.13-2.40 %) and accuracy (99.23-102.54 % and 96.84-101.88 %) of the methylisomiroestrol analysis using icELISA and HPLC. These methods were effectively applied for the determination of the methylisomiroestrol content in P. candollei samples. Apart from the plant tubers, the stem was observed as a source of methylisomiroestrol. The developed ELISA was more effective than HPLC in detecting a small quantity of methylisomiroestrol in the plant samples [0.23 × 10-3% (w/w) to 0.628 × 10-3% (w/w) dry weight]. Therefore, the ELISA could be a useful tool for the standardization of P. candollei, which is the crucial step to improve the quality of plant-derived products.
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16
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Zhao C, Si Y, Pan B, Taha AY, Pan T, Sun G. Design and fabrication of a highly sensitive and naked-eye distinguishable colorimetric biosensor for chloramphenicol detection by using ELISA on nanofibrous membranes. Talanta 2020; 217:121054. [PMID: 32498843 PMCID: PMC7304426 DOI: 10.1016/j.talanta.2020.121054] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 01/23/2023]
Abstract
Enzyme-linked immunoassay (ELISA) is highly specific and selective towards target molecules and is convenient for on-site detection. However, in many cases, lack of high sensitivity makes it hard to reveal a significant colorimetric signal for detecting a trace amount of target molecules. Thus, analytical instruments are required for detection, which limits the application of ELISA for on-site detection. In the present study, a highly sensitive and naked-eyed detectable colorimetric biosensor for chloramphenicol (CAP) was prepared by incorporating ELISA onto surfaces of microporous and nanofibrous membranes. The high specific surface areas of the nanofibers significantly increased the number of antibodies covalently linked onto the fiber surfaces and binding capacity of the sensor with antigens present in a sample. With such an integration, the sensitivity of the ELISA sensor was dramatically increased, and a trace number of targets could reveal a naked-eye detectable color. The immunoassay sensor exhibited a significant naked-eye distinguishable color to chloramphenicol (CAP) at 0.3 ng/mL. The successful design and fabrication of the nanofibrous membrane immunoassay sensor provide new paths towards the development of on-site inspection sensors without the assistance from any instrument.
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Affiliation(s)
- Cunyi Zhao
- Biological and Agricultural Engineering, University of California, Davis, CA, 95616, USA
| | - Yang Si
- Biological and Agricultural Engineering, University of California, Davis, CA, 95616, USA
| | - Bofeng Pan
- Biological and Agricultural Engineering, University of California, Davis, CA, 95616, USA
| | - Ameer Y Taha
- Food Science and Technology, University of California, Davis, CA, 95616, USA
| | - Tingrui Pan
- Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | - Gang Sun
- Biological and Agricultural Engineering, University of California, Davis, CA, 95616, USA.
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17
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Deep eutectic solvent-assisted facile synthesis of copper hydroxide nitrate nanosheets as recyclable enzyme-mimicking colorimetric sensor of biothiols. Anal Bioanal Chem 2020; 412:4629-4638. [DOI: 10.1007/s00216-020-02712-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/01/2020] [Accepted: 05/14/2020] [Indexed: 10/24/2022]
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18
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Taron W, Jamnongkan W, Techasen A, Phetcharaburanin J, Namwat N, Sithithaworn P, Khuntikeo N, Mukdasai S, Sayasone S, Loilome W, Ngeontae W. AuNPs-LISA, an efficient detection assay for Opisthorchis viverrini (Ov) antigen in urine. Talanta 2019; 209:120592. [PMID: 31892022 DOI: 10.1016/j.talanta.2019.120592] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/21/2019] [Accepted: 11/24/2019] [Indexed: 01/22/2023]
Abstract
The enzyme-linked immunosorbent assay (ELISA) is currently a powerful technique for the detection of Opisthorchis viverrini antigen (OvAg) in urine samples. However, its sensitivity and analysis time need to be improved. In the present study, we aimed to improve the signal enhancing system of traditional ELISA by using gold nanoparticles (AuNPs) with peroxidase-like activity on its surface instead of the horseradish peroxidase (HRP) system. The catalytic activity of the AuNPs probe can be boosted by the gold enhancing solution and the addition of ATP. The catalytic ability of the AuNPs probe depended on the probe and the H2O2 concentration. The proposed approach can reduce the number of the traditional ELISA steps with better detection sensitivity. Interestingly, the limit of detection (LOD) of the test was 23.4 ng mL-1, substantially lower than the 93.8 ng mL-1 for the traditional ELISA. The AuNPs-LISA assay showed higher sensitivity and specificity, 93.81% and 91.34%, respectively, compared to the traditional ELISA. The proposed assay was successfully applied for the detection of OvAg in urine samples. This will provide an effective tool for the detection, control and elimination of human opisthorchiasis.
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Affiliation(s)
- Wichit Taron
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Wassana Jamnongkan
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Anchalee Techasen
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand
| | - Jutarop Phetcharaburanin
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Nisana Namwat
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Paiboon Sithithaworn
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Department of Parasitology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Narong Khuntikeo
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand; Department of Surgery, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Siriboon Mukdasai
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
| | - Somphou Sayasone
- Lao Tropical and Public Health Institute, Vientiane Capital, Laos
| | - Watcharin Loilome
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand.
| | - Wittaya Ngeontae
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand.
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19
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Yu W, Li Y, Xie B, Ma M, Chen C, Li C, Yu X, Wang Z, Wen K, Tang BZ, Shen J. An Aggregation-Induced Emission-Based Indirect Competitive Immunoassay for Fluorescence "Turn-On" Detection of Drug Residues in Foodstuffs. Front Chem 2019; 7:228. [PMID: 31069213 PMCID: PMC6491695 DOI: 10.3389/fchem.2019.00228] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 03/22/2019] [Indexed: 12/31/2022] Open
Abstract
A new fluorescent "turn-on" probe-based immunosensor for detecting drug residues in foodstuffs was established by combining the mechanism of aggregation-induced emission (AIE) and an indirect competitive enzyme-linked immunosorbent assay (ELISA). In this study, a luminogen, with negligible fluorescence emission (TPE-HPro), aggregated in the presence of H2O2, and exhibited astrong yellow emission based on its AIE characteristics. This AIE process was further configured into an immunoassay for analyzing drug residues in foodstuffs. In this approach, glucose oxidase (GOx) was used as an enzyme label for the immunoassay and triggered GOx/glucose-mediated H2O2 generation, which caused oxidation of TPE-HPro and a "turn-on" fluorescence response at 540 nm. To quantitatively analyze the drug residues in foodstuffs, we used amantadine (AMD) as an assay model. By combining the AIE-active "turn-on" fluorescent signal generation mechanism with conventional ELISAs, quantifying AMD concentrations in chicken muscle samples was realized with an IC50 (50% inhibitory concentration) value of 0.38 ng/mL in buffer and a limited detection of 0.06 μg/kg in chicken samples. Overall, the conceptual integration of AIE with ELISA represents a potent and sensitive strategy that broadens the applicability of the AIE-based fluorometric assays.
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Affiliation(s)
- Wenbo Yu
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ying Li
- Division of Life Science, Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, The Hong Kong University of Science and Technology, Kowloon, China
| | - Bing Xie
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Mingfang Ma
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chaochao Chen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chenglong Li
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xuezhi Yu
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Zhanhui Wang
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Kai Wen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ben Zhong Tang
- Division of Life Science, Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, The Hong Kong University of Science and Technology, Kowloon, China
| | - Jianzhong Shen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
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20
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Lin JH, Huang KH, Zhan SW, Yu CJ, Tseng WL, Hsieh MM. Inhibition of catalytic activity of fibrinogen-stabilized gold nanoparticles via thrombin-induced inclusion of nanoparticle into fibrin: Application for thrombin sensing with more than 10 4-fold selectivity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 210:59-65. [PMID: 30445261 DOI: 10.1016/j.saa.2018.11.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 10/25/2018] [Accepted: 11/08/2018] [Indexed: 06/09/2023]
Abstract
Citrate-capped gold nanoparticles (AuNPs) modified with thrombin-binding aptamer are often implemented for colorimetric, fluorescent, and electrochemical detection of thrombin in an aqueous solution. However, researchers have rarely explored the application of fibrinogen-modified AuNPs (F-AuNPs) for thrombin sensing. We present a simple, inexpensive, sensitive, and selective probe for colorimetric assay of thrombin through combining thrombin-induced inclusion of F-AuNPs into Fibrin and F-AuNPs-catalyzed reduction of 4-nitrophenol with an excess amount of NaBH4. Considering that fibrinogen stabilized citrate-capped AuNPs against a high-ionic-strength buffer, F-AuNPs efficiently catalyzed the NaBH4-mediated decrease of yellow 4-nitrophenol to colorless 4-aminophenol. The presence of thrombin converted fibrinogen into fibrin on the nanoparticle surface, leading to the inclusion of nanoparticles into fibrin. The formation of fibrin inhibited that the AuNPs catalyzed the NaBH4-mediated reduction of 4-nitrophenol. Consequently, the color of the solution gradually varied from colorless to yellow with increasing thrombin concentration. The proposed system was shown to be accurate in the quantification of small differences in the concentration of human thrombin over the range of 4-60 pM. The lowest detectable concentration of human thrombin by the naked eye was as low as 16 pM. We demonstrated the practical application of the proposed system in quantifying 1-15 nM human thrombin in human plasma.
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Affiliation(s)
- Jia-Hui Lin
- Department of Chemistry, National Sun Yat-sen University, Taiwan
| | - Kai-Hsin Huang
- Department of Chemistry, National Sun Yat-sen University, Taiwan
| | - Shi-Wei Zhan
- Department of Chemistry, National Sun Yat-sen University, Taiwan
| | - Cheng-Ju Yu
- Department of Applied Physics and Chemistry, University of Taipei, Taiwan
| | - Wei-Lung Tseng
- Department of Chemistry, National Sun Yat-sen University, Taiwan; School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Taiwan.
| | - Ming-Mu Hsieh
- Department of Chemistry, National Kaohsiung Normal University, Kaohsiung City 802, Taiwan.
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21
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Enhanced colorimetric detection of norovirus using in-situ growth of Ag shell on Au NPs. Biosens Bioelectron 2019; 126:425-432. [DOI: 10.1016/j.bios.2018.10.067] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/21/2018] [Accepted: 10/30/2018] [Indexed: 11/20/2022]
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22
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An infrared IgG immunoassay based on the use of a nanocomposite consisting of silica coated Fe 3O 4 superparticles. Mikrochim Acta 2019; 186:99. [PMID: 30631954 DOI: 10.1007/s00604-018-3219-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/28/2018] [Indexed: 02/01/2023]
Abstract
A reliable, rapid and ultrasensitive immunoassay is described for determination of immunoglobulin G (IgG). It is making use of biofunctional magnetite (Fe3O4) superparticles coated with SiO2 and serving as an infrared (IR) probe. The unique IR fingerprint signals originating from the transverse and longitudinal phonon modes, respectively, of the asymmetric stretching of the Si-O-Si bridges display a satisfactory resistance to optical interference from the environment. The adoption of Fe3O4 superparticles instead of Fe3O4 nanoparticles as the magnetic core warrants a controllable structure and a strong magnetic response. This facilitates the efficient purification of the probes and the alleviation of the interfacial resistance between the liquid-solid interfaces by using a magnet. The gold-coated substrate was used to immobilize goat-anti-human IgG. The analyte (human IgG) was incubated with the IR probes, and then captured by the substrate immobilized antibody with the assistance of an external magnetic field. The integral area of the IR absorption band between 1250 cm-1 - 900 cm-1 was chosen for quantitative assay. The limit of detection is 95 fM, which is two orders of magnitude better than that without the magnetic field. The assay time was shortened from 2 h to 1 min. High selectivity, specificity, and long-term stability of the immunoassay were achieved. The performance of the assay when analyzing blood samples confirmed the practicability of the method. Graphical abstract Schematic presentation of the infrared (IR) immunoassay based on Fe3O4 superparticle@SiO2 nanocomposites. The assistance of an external magnetic field reduces the incubation time and improves the detection sensitivity.
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23
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Wu J, Wang X, Wang Q, Lou Z, Li S, Zhu Y, Qin L, Wei H. Nanomaterials with enzyme-like characteristics (nanozymes): next-generation artificial enzymes (II). Chem Soc Rev 2019; 48:1004-1076. [DOI: 10.1039/c8cs00457a] [Citation(s) in RCA: 1628] [Impact Index Per Article: 325.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An updated comprehensive review to help researchers understand nanozymes better and in turn to advance the field.
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Affiliation(s)
- Jiangjiexing Wu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Xiaoyu Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Quan Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Zhangping Lou
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Sirong Li
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Yunyao Zhu
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Li Qin
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
| | - Hui Wei
- Department of Biomedical Engineering, College of Engineering and Applied Sciences
- Nanjing National Laboratory of Microstructures
- Jiangsu Key Laboratory of Artificial Functional Materials
- Nanjing University
- Nanjing
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24
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Jiang C, Wei X, Bao S, Tu H, Wang W. Cu@Au(Ag)/Pt nanocomposite as peroxidase mimic and application of Cu@Au/Pt in colorimetric detection of glucose and l-cysteine. RSC Adv 2019; 9:41561-41568. [PMID: 35541589 PMCID: PMC9076479 DOI: 10.1039/c9ra08547e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/06/2019] [Indexed: 12/16/2022] Open
Abstract
Nanomaterial-based artificial peroxidase has attracted extensive interests due to their distinct advantages over natural counterpart. Cu@Au/Pt and Cu@Ag/Pt nanocomposite with rambutan-like structure were prepared and discovered to function like peroxidase, which was illustrated by catalyzing the oxidation reaction of 3,3′,5,5′-tetramethylbenzidine (TMB) accompanied with a blue color change. Steady-state investigation indicates that the catalytic kinetics of Cu@Au/Pt and Cu@Ag/Pt all followed typical Michaelis–Menten behaviors and Cu@Au/Pt showed a strong affinity for H2O2, while Cu@Ag/Pt showed strong affinity for TMB. The color change and absorbance intensity strongly depend on the concentration of H2O2, thus the direct determination of H2O2 and indirect detection of glucose were demonstrated using Cu@Au/Pt with a detection limit of 1.5 μM and 6 μM, respectively. What is more important, the method was applied for detection of glucose in 50% fetal bovine serum with a detection limit of 80 μM, which is much lower than the lowest glucose content in blood for diabetes (7 mM). Moreover, the Cu@Au/Pt nanocomposite were also successfully applied for sensing l-cysteine because of the inhibition effect. Considering the good peroxidase-like activity and novel structure, Cu@Au(Ag)/Pt is expected to have a wide range of applications in bioassays and biocatalysis. Cu@Au(Ag)/Pt nanocomposite possess good peroxidase-like activity and can be used for detection of glucose and l-cysteine.![]()
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Affiliation(s)
- Cuifeng Jiang
- School of Materials Science and Engineering
- Yancheng Institute of Technology
- Yancheng
- China
| | - Xiaoxiu Wei
- School of Materials Science and Engineering
- Yancheng Institute of Technology
- Yancheng
- China
| | - Shuai Bao
- School of Materials Science and Engineering
- Yancheng Institute of Technology
- Yancheng
- China
| | - Huajian Tu
- School of Materials Science and Engineering
- Yancheng Institute of Technology
- Yancheng
- China
| | - Wei Wang
- School of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng
- China
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25
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MOHAMAD A, KEASBERRY NA, AHMED MU. Enzyme-free Gold-silver Core-shell Nanozyme Immunosensor for the Detection of Haptoglobin. ANAL SCI 2018; 34:1257-1263. [DOI: 10.2116/analsci.18p176] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Azureen MOHAMAD
- Biosensors and Biotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam
| | - Natasha Ann KEASBERRY
- Biosensors and Biotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam
| | - Minhaz Uddin AHMED
- Biosensors and Biotechnology Laboratory, Integrated Science Building, Faculty of Science, Universiti Brunei Darussalam
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26
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Lee J, Adegoke O, Park EY. High-Performance Biosensing Systems Based on Various Nanomaterials as Signal Transducers. Biotechnol J 2018; 14:e1800249. [PMID: 30117715 DOI: 10.1002/biot.201800249] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/06/2018] [Indexed: 12/15/2022]
Abstract
Recently, highly sensitive and selective biosensors have become necessary for improving public health and well-being. To fulfill this need, high-performance biosensing systems based on various nanomaterials, such as nanoparticles, carbon nanomaterials, and hybrid nanomaterials, are developed. Numerous nanomaterials show excellent physical properties, including plasmonic, magnetic, catalytic, mechanical and fluorescence properties and high electrical conductivities, and these unique and beneficial properties have contributed to the fabrication of high-performance biosensors with various applications, including in optical, electrical, and electrochemical detection platforms. In addition, these properties can be transformed to signals for the detection of biomolecules. In this review, various types of nanomaterial-based biosensors are introduced, and they show high sensitivity and selectivity. In addition, the potential applications of these sensors on the biosensing of several types of biomolecules are also discussed. These nanomaterials-based biosensing systems provide a significant improvement on healthcare including rapid monitoring and early detection of infectious disease for public health.
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Affiliation(s)
- Jaewook Lee
- Laboratory of Biotechnology, Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Oluwasesan Adegoke
- Laboratory of Biotechnology, Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
| | - Enoch Y Park
- Laboratory of Biotechnology, Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan.,Laboratory of Biotechnology, Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan.,Laboratory of Biotechnology, College of Agriculture, Academic Institute, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka, 422-8529, Japan
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27
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Pham XH, Hahm E, Kim TH, Kim HM, Lee SH, Lee YS, Jeong DH, Jun BH. Enzyme-catalyzed Ag Growth on Au Nanoparticle-assembled Structure for Highly Sensitive Colorimetric Immunoassay. Sci Rep 2018; 8:6290. [PMID: 29674713 PMCID: PMC5908853 DOI: 10.1038/s41598-018-24664-w] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/03/2018] [Indexed: 12/22/2022] Open
Abstract
We have developed a sensitive colorimetric immunoassay with broad dynamic range using enzyme-catalyzed Ag growth on gold nanoparticle (NP)-assembled silica (SiO2@Au@Ag). To reduce Ag+ ion content and promote Ag growth on the assembled Au NPs, alkaline phosphatase (AP)-based enzymatic amplification was incorporated, which considerably increased the colorimetric read-out. As a model study, sandwich enzyme-linked immunosorbent assay (ELISA) was used to quantify target IgG. The immune complexes capture the Ab-IgG-AP-labeled detection Ab and trigger the enzyme-catalyzed reaction to convert 2-phospho-L-ascorbic acid to ascorbic acid in the presence of the target IgG. Ascorbic acid reduced Ag+ to Ag, which formed Ag shells on the surface of SiO2@Au and enhanced the absorbance of the SiO2@Au@Ag solution. Plasmonic immunoassay showed a significant linear relationship between absorbance and the logarithm of IgG concentration in the range of ca. 7 × 10-13 M to 7 × 10-11 M. The detection limit was at 1.4 × 10-13 M, which is several hundred folds higher than that of any conventional colorimetric immunoassay. Thus, our novel approach of signal-amplification can be used for highly sensitive in vitro diagnostics and detection of target proteins with the naked eye without using any sophisticated instrument.
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Affiliation(s)
- Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Eunil Hahm
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Tae Han Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Hyung-Mo Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Sang Hun Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Yoon-Sik Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Dae Hong Jeong
- Department of Chemistry Education, Seoul National University, Seoul, 151-742, Republic of Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea.
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28
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Vidya R, Saji A. Naked eye detection of infertility based on sperm protamine-induced aggregation of heparin gold nanoparticles. Anal Bioanal Chem 2018; 410:3053-3058. [PMID: 29582121 DOI: 10.1007/s00216-018-1026-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/05/2018] [Accepted: 03/13/2018] [Indexed: 11/25/2022]
Abstract
The development of an easy to use, one-pot, environmentally friendly, non-invasive and label-free colorimetric probe for the determination of semen protamines, the biochemical marker of male fertility, using heparin gold nanoparticles (HAuNPs) is presented. The affinity of HAuNPs for protamines was due to the electrostatic interactions between polycationic protamine and polyanionic heparin. The binding of HAuNPs to protamine was characterized by variation in the plasmon absorption spectra followed by a visibly observable colour change of the solution from red to blue. We observed a red shift in the plasmon peak and the method exhibited linearity in the range of 10-70 ng/mL with a detection limit of 5 ng/mL, which is much lower than that reported for colorimetric sensors of protamine. The colour change and the variation in the absorbance of HAuNPs were highly specific for protamines in the presence of different interfering compounds and the method was successfully applied for determining protamine in real samples of semen and serum. Rather than a quantitative estimation, it seems that the method provides a quick screening between a large array of positive and negative samples and, moreover, it maintains the privacy of the user. The method appears to be simple and would be very useful in third-world countries where high-tech diagnostic aids are inaccessible to the majority of the population. Graphical Abstract Heparin gold nanoparticles aided visual detection of infertility.
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Affiliation(s)
- Raj Vidya
- Department of Chemistry, Government College for Women, Vazuthacaud, Thiruvananthapuram, Kerala, 695014, India
| | - Alex Saji
- Department of Chemistry, Government College for Women, Vazuthacaud, Thiruvananthapuram, Kerala, 695014, India.
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29
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Dias JT, Svedberg G, Nystrand M, Andersson-Svahn H, Gantelius J. Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis. J Vis Exp 2018:57297. [PMID: 29578517 PMCID: PMC5931481 DOI: 10.3791/57297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The use of nanoprobes such as gold, silver, silica or iron-oxide nanoparticles as detection reagents in bioanalytical assays can enable high sensitivity and convenient colorimetric readout. However, high densities of nanoparticles are typically needed for detection. The available synthesis-based enhancement protocols are either limited to gold and silver nanoparticles or rely on precise enzymatic control and optimization. Here, we present a protocol to enhance the colorimetric readout of gold, silver, silica, and iron oxide nanoprobes. It was observed that the colorimetric signal can be improved by up to a 10000-fold factor. The basis for such signal enhancement strategies is the chemical reduction of Au3+ to Au0. There are several chemical reactions that enable the reduction of Au3+ to Au0. In the protocol, Good's buffers and H2O2 are used and it is possible to favor the deposition of Au0 onto the surface of existing nanoprobes, in detriment of the formation of new gold nanoparticles. The protocol consists of the incubation of the microarray with a solution consisting of chloroauric acid and H2O2 in 2-(N-morpholino)ethanesulfonic acid pH 6 buffer following the nanoprobe-based detection assay. The enhancement solution can be applied to paper and glass-based sensors. Moreover, it can be used in commercially available immunoassays as demonstrated by the application of the method to a commercial allergen microarray. The signal development requires less than 5 min of incubation with the enhancement solution and the readout can be assessed by naked eye or low-end image acquisition devices such as a table-top scanner or a digital camera.
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Affiliation(s)
- Jorge T Dias
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Gustav Svedberg
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Mats Nystrand
- Global Research and Development, Thermo Fisher Scientific IDD
| | - Helene Andersson-Svahn
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology
| | - Jesper Gantelius
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology;
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30
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Paper-based immunosensor with signal amplification by enzyme-labeled anti-p16 INK4a multifunctionalized gold nanoparticles for cervical cancer screening. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1051-1058. [PMID: 29407199 DOI: 10.1016/j.nano.2018.01.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 01/12/2018] [Accepted: 01/15/2018] [Indexed: 11/23/2022]
Abstract
The aim of this study was to develop a paper-based immunosensor for cervical cancer screening, with signal amplification by multifunctionalized gold nanoparticles (AuNPs). The AuNPs were functionalized with a highly specific antibody to the p16INK4a cancer biomarker. The signal was amplified using a combination of the peroxidase activity of horseradish peroxidase (HRP) enzyme-antibody conjugate and the peroxidase-like activity of the AuNPs. The immune complex of p16INK4a protein and multifunctionalized AuNPs was deposited on the nitrocellulose membrane, and a positive result was generated by catalytic oxidation of peroxidase enzyme substrate 3,3',5,5'-Tetramethylbenzidine (TMB). The entire reaction occurred on the membrane within 30 min. Evaluation in clinical samples revealed 85.2% accuracy with a kappa coefficient of 0.69. This proof of concept study demonstrates the successful development of a highly accurate, paper-based immunosensor that is easy to interpret using the naked eye and that is suitable for cervical cancer screening in low-resource settings.
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31
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Hu F, Wu P, Wang R, Liu W, He H. Colorimetric sensor for cimetidine detection in human urine based on d-xylose protected gold nanoparticles. Analyst 2018; 143:2369-2376. [DOI: 10.1039/c8an00499d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple, novel, and rapid colorimetric sensor for cimetidine (Cim) detection based on d-xylose protected gold nanoparticles (d-x@AuNPs) has been developed for the first time.
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Affiliation(s)
- Fan Hu
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 211198
- China
| | - PinPing Wu
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 211198
- China
| | - RuYa Wang
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Wei Liu
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 211198
- China
| | - Hua He
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 211198
- China
- Key Laboratory of Biomedical Functional Materials
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32
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Tian R, Sun J, Qi Y, Zhang B, Guo S, Zhao M. Influence of VO₂ Nanoparticle Morphology on the Colorimetric Assay of H₂O₂ and Glucose. NANOMATERIALS 2017; 7:nano7110347. [PMID: 29068412 PMCID: PMC5707564 DOI: 10.3390/nano7110347] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 10/19/2017] [Accepted: 10/20/2017] [Indexed: 11/16/2022]
Abstract
Nanozyme-based colorimetric sensors have received considerable attention due to their unique properties. The size, shape, and surface chemistry of these nanozymes could dramatically influence their sensing behaviors. Herein, a comparative study of VO₂ nanoparticles with different morphologies (nanofibers, nanosheets, and nanorods) was conducted and applied to the sensitive colorimetric detection of H₂O₂ and glucose. The peroxidase-like activities and mechanisms of VO₂ nanoparticles were analyzed. Among the VO₂ nanoparticles, VO₂ nanofibers exhibited the best peroxidase-like activity. Finally, a comparative quantitative detections of H₂O₂ and glucose were done on fiber, sheet, and rod nanoparticles. Under the optimal reaction conditions, the lower limit of detection (LOD) of the VO₂ nanofibers, nanosheets, and nanorods for H₂O₂ are found to be 0.018, 0.266, and 0.41 mM, respectively. The VO₂ nanofibers, nanosheets, and nanorods show the linear response for H₂O₂ from 0.025-10, 0.488-62.5, and 0.488-15.625 mM, respectively. The lower limit of detection (LOD) of the VO₂ nanofibers, nanosheets, and nanorods for glucose are found to be 0.009, 0.348, and 0.437 mM, respectively. The VO₂ nanofibers, nanosheets, and nanorods show the linear response for glucose from 0.01-10, 0.625-15, and 0.625-10 mM, respectively. The proposed work will contribute to the nanozyme-based colorimetric assay.
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Affiliation(s)
- Rui Tian
- School of Public Health, Jilin University, Changchun 130021, Jilin, China.
| | - Jiaheng Sun
- School of Public Health, Jilin University, Changchun 130021, Jilin, China.
| | - Yanfei Qi
- School of Public Health, Jilin University, Changchun 130021, Jilin, China.
| | - Boyu Zhang
- School of Public Health, Jilin University, Changchun 130021, Jilin, China.
| | - Shuanli Guo
- School of Public Health, Jilin University, Changchun 130021, Jilin, China.
| | - Mingming Zhao
- School of Public Health, Jilin University, Changchun 130021, Jilin, China.
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33
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Rapid signal enhancement method for nanoprobe-based biosensing. Sci Rep 2017; 7:6837. [PMID: 28754966 PMCID: PMC5533771 DOI: 10.1038/s41598-017-07030-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 06/21/2017] [Indexed: 02/05/2023] Open
Abstract
The introduction of nanomaterials as detection reagents has enabled improved sensitivity and facilitated detection in a variety of bioanalytical assays. However, high nanoprobe densities are typically needed for colorimetric detection and to circumvent this limitation several enhancement protocols have been reported. Nevertheless, there is currently a lack of universal, enzyme-free and versatile methods that can be readily applied to existing as well as new biosensing strategies. The novel method presented here is shown to enhance the signal of gold nanoparticles enabling visual detection of a spot containing <10 nanoparticles. Detection of Protein G on paper arrays was improved by a 100-fold amplification factor in under five minutes of assay time, using IgG-labelled gold, silver, silica and iron oxide nanoprobes. Furthermore, we show that the presented protocol can be applied to a commercial allergen microarray assay, ImmunoCAP ISAC sIgE 112, attaining a good agreement with fluorescent detection when analysing human clinical samples.
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34
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Cobalt oxyhydroxide nanoflakes with intrinsic peroxidase catalytic activity and their application to serum glucose detection. Anal Bioanal Chem 2017; 409:4225-4232. [PMID: 28493021 DOI: 10.1007/s00216-017-0372-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 03/30/2017] [Accepted: 04/20/2017] [Indexed: 10/19/2022]
Abstract
Cobalt oxyhydroxide (CoOOH) nanoflakes, an emerging type of two-dimensional nanomaterial, show great potential for use in molecular detection. Previous assays utilizing such materials have largely been based on their outstanding fluorescence quenching ability and oxidizing power. Herein, we report the intrinsic peroxidase-like activity of cobalt oxyhydroxide (CoOOH) nanoflakes, and we show how this activity can be employed for glucose detection. We found that, in the presence of hydrogen peroxide (H2O2), the nanoflakes accelerated the conversion of peroxidase substrates such as 3,3',5,5'-tetramethylbenzidine (TMB) into colored products. By combining the CoOOH nanoflakes with the biological enzyme glucose oxidase (GOx), we developed a colorimetric method for the detection of glucose within the concentration range 5.3-500 μM. The proposed method was applied to detect elevated blood glucose levels in diabetic patients, and the intense color change induced by elevated glucose levels was found to be readily apparent to the naked eye, proving the utility of our assay for point-of-care testing. Graphical abstract The intrinsic peroxidase-like activity of cobalt oxyhydroxide (CoOOH) nanoflakes was exploited to enable the direct visualization of elevated glucose levels in sera from diabetic patients.
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35
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Dual-mode immunoassay based on shape code and infrared absorption fingerprint signals of silica nanorods. Anal Bioanal Chem 2017; 409:4207-4213. [DOI: 10.1007/s00216-017-0369-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 03/09/2017] [Accepted: 04/19/2017] [Indexed: 10/19/2022]
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36
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Abstract
The authors describe a gold nanocage-based lateral flow strip biosensor (LFSB) for low-cost and sensitive detection of IgG. This protein was used as a model analyte to demonstrate the proof-of-concept. The method combines the unique optical properties of gold nanocages (GNCs) with highly efficient chromatographic separation. A sandwich-type of immunoreactions occurs on the GNC-based LFSB which has the attractive features of avoiding multiple incubation, separation, and washing steps. The captured GNCs on the purple test zone and control zone of the biosensor are producing characteristic purple bands, and this enables IgG even to be visually detected. Quantitatation was accomplished by reading the intensities of the bands with a portable strip reader. The LFSB fabrication and assay parameters were optimized. The biosensor displays a linear response in the 0.5 to 50 ng·mL-1 IgG concentration range, and it has a 15 min assay time. The detection limit is 0.1 ng·mL-1 of IgG, which is 2.5 times lower than that when using a gold nanoparticle-based LFSB. In our perception, this assay has a wide potential for the detection of other proteins and species for which respective antibodies are available.
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37
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Vallabani NVS, Karakoti AS, Singh S. ATP-mediated intrinsic peroxidase-like activity of Fe 3O 4-based nanozyme: One step detection of blood glucose at physiological pH. Colloids Surf B Biointerfaces 2017; 153:52-60. [PMID: 28214671 DOI: 10.1016/j.colsurfb.2017.02.004] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/03/2017] [Accepted: 02/04/2017] [Indexed: 11/30/2022]
Abstract
Fe3O4 nanoparticles (Fe3O4 NPs), demonstrating peroxidase-like activity has garnered attention in the detection of several biomolecules, therefore, emerged as an excellent nano-biosensing agent. The intrinsic peroxidase-like activity of Fe3O4 NPs at acidic pH is the fundamental action driving the oxidation of substrates like TMB, resulting in a colorimetric product formation used in the detection of biomolecules. Hence, the detection sensitivity essentially depends on the ability of oxidation by Fe3O4 NPs in presence of H2O2. However, the limited sensitivity and pH condition constraint have been identified as the major drawbacks in the detection of biomolecules at physiological pH. Herein, we report overwhelming of the fundamental limitation of acidic pH and tuning the peroxidase-like activity of Fe3O4 NPs at physiological pH by using ATP. In presence of ATP, Fe3O4 NPs exhibited enhanced peroxidase-like activity over a wide range of pH and temperatures. Mechanistically, it was found that the ability of ATP to participate in single electron transfer reaction, through complexation with Fe3O4 NPs, results in the generation of hydroxyl radicals which are responsible for enhanced peroxidase activity at physiological pH. We utilized this ATP-mediated enhanced peroxidase-like activity of Fe3O4 NPs for single step detection of glucose with a colorimetric detection limit of 50μM. Further, we extended this single step detection method to monitor glucose level in human blood serum and detected in a time span of <5min at pH 7.4.
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Affiliation(s)
- N V Srikanth Vallabani
- Division of Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India
| | - Ajay S Karakoti
- Division of Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India; School of Engineering and Applied Science, Ahmedabad University, GICT Building, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India.
| | - Sanjay Singh
- Division of Biological and Life Sciences, School of Arts and Sciences, Ahmedabad University, Central Campus, Navrangpura, Ahmedabad 380009, Gujarat, India.
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38
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Hassanzadeh J, Khataee A, Bagheri N, Lotfi R. Sensitive chemiluminescence determination method for 2,4,6-trinitrotoluene based on the catalytic activity of amine-capped gold nanoparticles. NEW J CHEM 2017. [DOI: 10.1039/c6nj02324j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
TNT can efficiently quench the high intensity CL emission of a rhodamine B–KMnO4–EDA capped AuNP CL system.
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Affiliation(s)
- Javad Hassanzadeh
- Research Laboratory of Advanced Water and Wastewater Treatment Processes
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- 51666-16471 Tabriz
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- 51666-16471 Tabriz
| | - Nafiseh Bagheri
- Department of Chemistry
- Faculty of Science
- Azarbaijan Shahid Madani University
- Tabriz
- Iran
| | - Roya Lotfi
- Research Laboratory of Advanced Water and Wastewater Treatment Processes
- Department of Applied Chemistry
- Faculty of Chemistry
- University of Tabriz
- 51666-16471 Tabriz
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39
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Karn-orachai K, Sakamoto K, Laocharoensuk R, Bamrungsap S, Dharakul T, Miki K. SERS-based immunoassay on 2D-arrays of Au@Ag core–shell nanoparticles: influence of the sizes of the SERS probe and sandwich immunocomplex on the sensitivity. RSC Adv 2017. [DOI: 10.1039/c7ra00154a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The sensitivity of immunoassay performed on SERS-active substrates can be improved by optimizing the size of SERS probes and also by decreasing the size of sandwich immunocomplex.
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Affiliation(s)
- Kullavadee Karn-orachai
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
- Faculty of Pure and Applied Sciences
- University of Tsukuba
| | - Kenji Sakamoto
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
| | - Rawiwan Laocharoensuk
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Pathumthani 12120
- Thailand
| | - Suwussa Bamrungsap
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Pathumthani 12120
- Thailand
| | - Tararaj Dharakul
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Pathumthani 12120
- Thailand
- Department of Immunology
| | - Kazushi Miki
- National Institute for Materials Science (NIMS)
- Tsukuba
- Japan
- Faculty of Pure and Applied Sciences
- University of Tsukuba
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40
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Jiang Y, Song N, Wang C, Pinna N, Lu X. A facile synthesis of Fe3O4/nitrogen-doped carbon hybrid nanofibers as a robust peroxidase-like catalyst for the sensitive colorimetric detection of ascorbic acid. J Mater Chem B 2017; 5:5499-5505. [DOI: 10.1039/c7tb01058c] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We describe a facile synthesis of Fe3O4/nitrogen-doped carbon hybrid nanofibers as a robust peroxidase-like catalyst for the sensitive colorimetric detection of ascorbic acid.
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Affiliation(s)
- Yanzhou Jiang
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Na Song
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Ce Wang
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
| | - Nicola Pinna
- Institut für Chemie and IRIS Adlershof
- Humboldt-Universität zu Berlin
- 12489 Berlin
- Germany
| | - Xiaofeng Lu
- Alan G. MacDiarmid Institute
- College of Chemistry
- Jilin University
- Changchun
- P. R. China
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41
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Nasir M, Nawaz MH, Latif U, Yaqub M, Hayat A, Rahim A. An overview on enzyme-mimicking nanomaterials for use in electrochemical and optical assays. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-2036-8] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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42
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Affiliation(s)
- Xiuli Fu
- School
of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264005, China
| | - Lingxin Chen
- School
of Chemistry and Chemical Engineering, Yantai University, Yantai, Shandong 264005, China
- Key
Laboratory of Coastal Environmental Processes and Ecological Remediation,
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China
| | - Jaebum Choo
- Department
of Bionanotechnology, Hanyang University, Ansan, Gyeonggi 426-791, South Korea
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43
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Wu L, Yin W, Tang K, Shao K, Li Q, Wang P, Zuo Y, Lei X, Lu Z, Han H. Highly sensitive enzyme-free immunosorbent assay for porcine circovirus type 2 antibody using Au-Pt/SiO 2 nanocomposites as labels. Biosens Bioelectron 2016; 82:177-84. [DOI: 10.1016/j.bios.2016.04.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/18/2016] [Accepted: 04/02/2016] [Indexed: 10/22/2022]
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44
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Magnetic-bead-based sub-femtomolar immunoassay using resonant Raman scattering signals of ZnS nanoparticles. Anal Bioanal Chem 2016; 408:5013-9. [PMID: 27173389 DOI: 10.1007/s00216-016-9601-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/15/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022]
Abstract
Highly sensitive, specific, and selective immunoassays are of great significance for not only clinical diagnostics but also food safety, environmental monitoring, and so on. Enzyme-linked immunosorbent assays and fluorescence-based and electrochemical immunoassays are important intensively investigated immunoassay techniques. However, they might suffer from low sensitivity or false-positive results. In this work, a simple, reliable, and ultrasensitive magnetic-bead-based immunoassay was performed using biofunctionalized ZnS semiconductor nanocrystals as resonant Raman probes. The resonant Raman scattering of ZnS nanocrystals displays evenly spaced multi-phonon resonant Raman lines with narrow bandwidths and has strong resistance to environmental variation due to the nature of the electron-phonon interaction, thus rendering reliable signal readout in the immunoassays. The superparamagnetic Fe3O4 nanoparticles facilitated greatly the separation, purification, and concentration processes. It is beneficial for both reducing the labor intensity and amplifying the detection signals. The immobilization of antibodies on the surface of magnetic beads, the preparation of resonant Raman probes, and the immunological recognition between the antibody and analyte all occurred in the liquid phase, which minimized the diffusion barriers and boundary layer constraints. All these factors contributed to the ultralow detection limit of human IgG, which was determined to be about 0.5 fM (∼0.08 pg/ml). It is nearly the highest sensitivity obtained for IgG detection. This work shall facilitate the design of nanoplatforms for ultrasensitive detections of proteins, DNAs, bacteria, explosives, and so on. Graphical abstract An ultrasensitive magnetic-bead-based immunoassay was performed using multi-phonon resonant Raman lines of ZnS nanoparticles as detection signals.
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45
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Roy A, Sahoo R, Ray C, Dutta S, Pal T. Soft template induced phase selective synthesis of Fe2O3 nanomagnets: one step towards peroxidase-mimic activity allowing colorimetric sensing of thioglycolic acid. RSC Adv 2016. [DOI: 10.1039/c6ra00963h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The peroxidase-mimicking property of the soft template mediated phase selective α- and γ-Fe2O3 magnetic nanoparticles allows colorimetric sensing for thioglycolic acid down to μM level.
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Affiliation(s)
- Anindita Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Ramkrishna Sahoo
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Chaiti Ray
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Soumen Dutta
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Tarasankar Pal
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
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46
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Gu Y, Kong S, Diao X, Guo Y, Zhang K, He H. Mechanistic study on the facet etching effect of silver nanoprisms in the presence of halide ions and their application in the colorimetric sensing of metformin hydrochloride. NEW J CHEM 2016. [DOI: 10.1039/c6nj00361c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The driving force of halide ions etching on Ag nanoprisms is the formation of a precipitant with Ag+ at the [110] facet.
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Affiliation(s)
- Yu Gu
- Division of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Sumei Kong
- Division of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Xintong Diao
- Division of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Yuhan Guo
- Division of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Kai Zhang
- Division of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hua He
- Division of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009
- China
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University)
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47
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Liu Y, Xie J, Zhang Z, Lu Z. An ultrasensitive colorimetric strategy for protein O-GlcNAcylation detection via copper deposition-enabled nonenzymatic signal amplification. RSC Adv 2016. [DOI: 10.1039/c6ra17119b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
An ultrasensitive colorimetric method for protein O-GlcNAcylation analysis is developed using AuNP-catalyzed copper deposition as a nonenzymatic signal amplification strategy.
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Affiliation(s)
- Yingshuai Liu
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials & Energy
- Southwest University
- Chongqing 400715
- China
| | - Jin Xie
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials & Energy
- Southwest University
- Chongqing 400715
- China
| | - Zeying Zhang
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials & Energy
- Southwest University
- Chongqing 400715
- China
| | - Zhisong Lu
- Institute for Clean Energy & Advanced Materials
- Faculty of Materials & Energy
- Southwest University
- Chongqing 400715
- China
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