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Nuclear magnetic resonance immunoassay of tetanus antibodies based on the displacement of magnetic nanoparticles. Anal Bioanal Chem 2021; 413:1461-1471. [PMID: 33491121 DOI: 10.1007/s00216-020-03112-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/11/2020] [Accepted: 12/03/2020] [Indexed: 10/22/2022]
Abstract
A nuclear magnetic resonance (NMR) immunoassay based on the application of carbon-coated iron nanoparticles conjugated with recognition molecules was designed. The principle of the assay is that ELISA plates are coated with a capture element, and then an analyte is added and detected by conjugating the magnetic nanoparticles with recognition molecules. Afterwards, the elution solution (0.1-M sodium hydroxide) is added to displace the magnetic nanoparticles from the well surfaces into the solution. The detached magnetic nanoparticles reduce transverse relaxation time (T2) values of protons from the surrounding solution. A portable NMR relaxometer is used to measure the T2. Magnetic nanoparticles conjugated with streptavidin, monoclonal antibodies, and protein G were applied for the detection of biotinylated albumin, prostate-specific antigen, and IgG specific to tetanus toxoid (TT). The limit of detection of anti-TT IgG was 0.08-0.12 mIU/mL. The reproducibility of the assay was within the acceptable range (CV < 7.4%). The key novelty of the immunoassay is that the displacement of the nanoparticles from the solid support by the elution solution allows the advantages of the solid phase assay to be combined with the sensitive detection of the T2 changes in a volume of liquid.
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Castiello FR, Tabrizian M. Gold nanoparticle amplification strategies for multiplex SPRi-based immunosensing of human pancreatic islet hormones. Analyst 2019; 144:2541-2549. [PMID: 30864587 DOI: 10.1039/c9an00140a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, we demonstrate the potential use of SPRi for secretion-monitoring of pancreatic islets, small micro-organs that regulate glucose homeostasis in the body. In the islets, somatostatin works as a paracrine inhibitor of insulin and glucagon secretion. However, this inhibitory effect is lost in diabetic individuals and little is known about its contribution to the pathology of diabetes. Thus, the simultaneous detection of insulin, glucagon and somatostatin could help understand such communications. Previously, the authors introduced an SPRi biosensor to simultaneously monitor insulin, glucagon and somatostatin using an indirect competitive immunoassay. However, our sensor achieved a relatively high LOD for somatostatin detection (246 nM), the smallest of the three hormones. For this reason, the present work aimed to improve the performance of our SPRi biosensor using gold nanoparticles (GNPs) as a means of ensuring somatostatin detection from a small group of islets. Although GNP amplification is frequently reported in the literature for individual detection of analytes using SPR, studies regarding the optimal strategy in a multiplexed SPR setup are missing. Therefore, with the aim of finding the optimal GNP amplification strategies for multiplex sensing we compared three architectures: (1) GNPs immobilized on the sensor surface, (2) GNPs conjugated with primary antibodies (GNP-Ab1) and (3) GNPs conjugated with a secondary antibody (GNP-Ab2). Among these strategies an immunoassay using GNP-Ab2 conjugates was able to achieve multiplex detection of the three hormones without cross-reactivity and with 9-fold LOD improvement for insulin, 10-fold for glucagon and 200-fold for somatostatin when compared to the SPRi biosensor without GNPs. The present work denotes the first report of the simultaneous detection of such hormones with a sensitivity level comparable to ELISA assays, particularly for somatostatin.
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Affiliation(s)
- F Rafael Castiello
- Biomedical and Biological Engineering Department, McGill University, Montreal, QC, Canada.
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Ishii T, Miyata K, Anraku Y, Naito M, Yi Y, Jinbo T, Takae S, Fukusato Y, Hori M, Osada K, Kataoka K. Enhanced target recognition of nanoparticles by cocktail PEGylation with chains of varying lengths. Chem Commun (Camb) 2016; 52:1517-9. [DOI: 10.1039/c5cc06661a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Monodispersed gold nanoparticles (AuNPs) were simultaneously decorated with lactosylated and non-modified shorter poly(ethylene glycol)s (PEGs) to enhance their target recognition.
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High PEGylation efficiency of pentaethylenehexamine-end poly(ethylene glycol) (mPEG-N6) for active-ester surface. Colloids Surf B Biointerfaces 2012; 92:25-9. [DOI: 10.1016/j.colsurfb.2011.11.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2011] [Accepted: 11/02/2011] [Indexed: 11/22/2022]
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Bedford EE, Spadavecchia J, Pradier CM, Gu FX. Surface plasmon resonance biosensors incorporating gold nanoparticles. Macromol Biosci 2012; 12:724-39. [PMID: 22416018 DOI: 10.1002/mabi.201100435] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2011] [Revised: 12/22/2011] [Indexed: 01/13/2023]
Abstract
SPR biosensing is increasingly popular for the detection of a multitude of biomolecules. It offers label-free detection and study of proteins, nucleic acids, and other biomolecules in real time. A recent trend involves incorporation of AuNPs, either within the sensing surface itself or as signal enhancing tagging molecules. The importance of AuNP and detecting agent spacing is described and techniques using macromolecular spacing aids are highlighted. Recent methods to enhance SPR detection capabilities using gold nanoparticles are reviewed, as well as device fabrication and the results of incorporation. SPR detection is a highly versatile method for the detection of biomolecules and, with the incorporation of AuNPs, shows promise in extending it to a number of new applications.
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Affiliation(s)
- Erin E Bedford
- Laboratoire de Réactivité de Surface, Université Pierre et Marie Curie, CNRS, UMR 7197, 3 Rue Galilée, 94200 Ivry-sur-Seine, France
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Chen S, Fang YM, Xiao Q, Li J, Li SB, Chen HJ, Sun JJ, Yang HH. Rapid visual detection of aluminium ion using citrate capped gold nanoparticles. Analyst 2012; 137:2021-3. [DOI: 10.1039/c2an35129c] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Determination of gold by substoichiometric extraction with N-thioacetyl benzamide. J Radioanal Nucl Chem 2011. [DOI: 10.1007/s10967-011-1176-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Design of Highly Functional Antiferritin-Immunolatex by Hybridization of Antiferritin/Mixed-PEG Polymers onto Polystyrene Submicroparticles. ACTA ACUST UNITED AC 2010. [DOI: 10.1021/bk-2010-1054.ch013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Cunningham S, Gerlach JQ, Kane M, Joshi L. Glyco-biosensors: recent advances and applications for the detection of free and bound carbohydrates. Analyst 2010; 135:2471-80. [PMID: 20714521 DOI: 10.1039/c0an00276c] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The field of biosensor development now encompasses several areas specifically geared toward the rapid and sensitive detection, identification, and quantification of target analytes. In contrast to the more mature research and development of nucleic acid and protein biosensors, the development of 'glyco-biosensors' for detecting carbohydrates and conjugates of carbohydrates (glycoconjugates) is at a relatively nascent stage. The application of glyco-biosensors aims to open novel analytical and diagnostic avenues, encompassing industrial bioprocesses, biomedical and clinical applications. This area of research has been greatly aided by advancement brought by interdisciplinary mergers of engineering, biology, chemistry and physical sciences and enabling the miniaturization of detection platforms. In this review, we briefly introduce the need for glyco-biosensors, discuss current analytical technologies, and examine advances in glyco-biosensor approaches aimed at the detection and/or quantification of glycoconjugates or carbohydrates derived from glycoconjugates since 2005.
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Affiliation(s)
- Stephen Cunningham
- Glycoscience Group, National Centre for Biomedical Engineering Science, National University of Ireland, Galway
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Yuan X, Fabregat D, Yoshimoto K, Nagasaki Y. Efficient Inhibition of Interfacial Nonspecific Interaction to Create Practically Utilizable High Ferritin-Response Immunolatex. Anal Chem 2009; 81:10097-105. [DOI: 10.1021/ac902055w] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xiaofei Yuan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba Advanced Research Alliance (TARA), Master School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Satellite Laboratory of International Center for Materials Nanoarchitectonics (MANA) in National Institute for
| | - Dolça Fabregat
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba Advanced Research Alliance (TARA), Master School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Satellite Laboratory of International Center for Materials Nanoarchitectonics (MANA) in National Institute for
| | - Keitaro Yoshimoto
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba Advanced Research Alliance (TARA), Master School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Satellite Laboratory of International Center for Materials Nanoarchitectonics (MANA) in National Institute for
| | - Yukio Nagasaki
- Graduate School of Pure and Applied Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba Advanced Research Alliance (TARA), Master School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, Satellite Laboratory of International Center for Materials Nanoarchitectonics (MANA) in National Institute for
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A novel aluminum vanadate ion exchanger and its use for separation of 137mBa, 115mIn and 110mAg from 137Cs, 115Cd and 198Au, respectively. Appl Radiat Isot 2009; 67:1764-8. [DOI: 10.1016/j.apradiso.2009.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2008] [Revised: 03/17/2009] [Accepted: 05/14/2009] [Indexed: 11/21/2022]
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Yuan X, Yoshimoto K, Nagasaki Y. High-Performance Immunolatex Possessing a Mixed-PEG/Antibody Coimmobilized Surface: Highly Sensitive Ferritin Immunodiagnostics. Anal Chem 2009; 81:1549-56. [DOI: 10.1021/ac802282c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaofei Yuan
- Graduate School of Pure and Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba Advanced Research Alliance (TARA), and Master School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, and Satellite Laboratory of International Center for Materials Nanoarchitechtonics (MANA) in National Institute for Materials Science (NIMS), Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573
| | - Keitaro Yoshimoto
- Graduate School of Pure and Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba Advanced Research Alliance (TARA), and Master School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, and Satellite Laboratory of International Center for Materials Nanoarchitechtonics (MANA) in National Institute for Materials Science (NIMS), Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573
| | - Yukio Nagasaki
- Graduate School of Pure and Applied Sciences, Tsukuba Research Center for Interdisciplinary Materials Science (TIMS), Tsukuba Advanced Research Alliance (TARA), and Master School of Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8577, Japan, and Satellite Laboratory of International Center for Materials Nanoarchitechtonics (MANA) in National Institute for Materials Science (NIMS), Ten-noudai 1-1-1, Tsukuba, Ibaraki 305-8573
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Yoshimoto K, Hoshino Y, Ishii T, Nagasaki Y. Binding enhancement of antigen-functionalized PEGylated gold nanoparticles onto antibody-immobilized surface by increasing the functionalized antigen using α-sulfanyl-ω-amino-PEG. Chem Commun (Camb) 2008:5369-71. [DOI: 10.1039/b811818c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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