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Parvaneh S, Khademi F, Abdi G, Alizadeh A, Mostafaie A. Efficient conjugation of anti-HBsAg antibody to modified core-shell magnetic nanoparticles (Fe 3O 4@SiO 2/NH 2). ACTA ACUST UNITED AC 2021; 11:237-244. [PMID: 34631485 PMCID: PMC8494260 DOI: 10.34172/bi.2021.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 12/03/2020] [Accepted: 12/05/2020] [Indexed: 01/21/2023]
Abstract
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Introduction: Further development of magnetic-based detection techniques could be of significant use in increasing the sensitivity of detection and quantification of hepatitis B virus (HBV) infection. The present work addresses the fabrication and characterization of a new bio-nano composite based on the immobilization of goat anti-HBsAg antibody on modified core-shell magnetic nanoparticles (NPs) by (3-aminopropyl) triethoxysilane (APTES), named Fe3O4@SiO2/NH2, and magnetic NPs modified by chitosan (Fe3O4@CS).
Methods: At the first step, Fe3O4 was modified with the silica and APTES (Fe3O4@SiO2/NH2) and chitosan (Fe3O4@CS) separately. The goat anti-HBsAg antibody was activated by two different protocols: Sodium periodate and EDC-NHS. Then the resulted composites were conjugated with activated goat anti-HBsAg IgG. An external magnet collected Bio-super magnetic NPs (BSMNPs) and the remained solution was analyzed by the Bradford method to check the amount of attached antibody to the surface of BSMNPs.
Results: The findings indicated that activation of antibodies by sodium periodate method 15-17 µg antibody immobilized on 1 mg of super magnetic nanoparticles (SMNPs). However, in the EDC-NHS method, 8-10 µg of antibody was conjugated with 1 mg of SMNPs. The resulting bio-magnetic NPs were applied for interaction with the HBsAg target using enzyme-linked immunosorbent assay (ELISA). About 1 µg antigen attached to 1 mg SMNPs, which demonstrated that the fabricated materials are applicable in the detection scope of HBsAg.
Conclusion: In the present study, we developed new antibody-conjugated magnetic NPs for the detection of HBsAg using an efficient conjugation strategy. The results demonstrated that the binding capacity of Fe3O4@SiO2/NH2 was comparable with commercially available products. Our designed method for conjugating anti-HBsAg antibody to a magnetic nanoparticle opens the way to produce a high capacity of magnetic NPs.
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Affiliation(s)
- Shahram Parvaneh
- Department of Immunology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Medical Biology Research Center (MBRC), Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Dermatology and Allergology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Fatemeh Khademi
- Medical Biology Research Center (MBRC), Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gisya Abdi
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Krakow, Poland
| | - Abdolhamid Alizadeh
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Krakow, Poland.,Department of Organic Chemistry, Faculty of Physics and Chemistry, Alzahra University, Tehran, 1993893973, Iran
| | - Ali Mostafaie
- Department of Immunology, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Medical Biology Research Center (MBRC), Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Sharifuzzaman M, Barman SC, Zahed MA, Sharma S, Yoon H, Nah JS, Kim H, Park JY. An Electrodeposited MXene-Ti 3C 2T x Nanosheets Functionalized by Task-Specific Ionic Liquid for Simultaneous and Multiplexed Detection of Bladder Cancer Biomarkers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002517. [PMID: 33090659 DOI: 10.1002/smll.202002517] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Controlled deposition of 2D multilayered nanomaterials onto different electrodes to design a highly sensitive biosensing platform utilizing their active inherent electrochemistry is extremely challenging. Herein, a green, facile, and cost-effective one-pot deposition mechanism of 2D MXene-Ti3C2Tx nanosheets (MXNSs) onto conductive electrodes within few minutes via electroplating (termed electroMXenition) is reported for the first time. The redox reaction in the colloidal MXNS solution under the effect of a constant applied potential generates an electric field, which drives the nanoparticles toward a specific electrode interface such that they are cathodically electroplated. A task-specific ionic liquid, that is, 4-amino-1-(4-formyl-benzyl) pyridinium bromide (AFBPB), is exploited as a multiplex host arena for the substantial immobilization of MXNSs and covalent binding of antibodies. A miniaturized, single-masked gold dual interdigitated microelectrode (DIDμE) is microfabricated and presented by investigating the benefit of AFBPB coated on MXNSs. The resulting MXNSs-AFBPB-film-modified DIDμE biosensor exhibited a 7× higher redox current than bare electrodes owing to the uniform deposition. Using Apo-A1 and NMP 22 as model bladder cancer analytes, this newly developed dual immunosensor demonstrated precise and large linear ranges over five orders of significance with limit of detection values as low as 0.3 and 0.7 pg mL-1, respectively.
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Affiliation(s)
- Md Sharifuzzaman
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
| | - Sharat Chandra Barman
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
| | - Md Abu Zahed
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
| | - Sudeep Sharma
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
| | - Hyosang Yoon
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
| | - Joong San Nah
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
| | - Hyunsik Kim
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
| | - Jae Yeong Park
- Department of Electronic Engineering, Advanced Sensor and Energy Research Laboratory, Kwangwoon University, 447-1, Seoul, 139-701, Republic of Korea
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Shen G, Shen Y. Label-Free Electrochemical Immunosensor Based on β-Cyclodextrin-Functionalized Helical Carbon Nanotube and Ionic Liquid Containing Ferrocene and Aldehyde Groups. ACS OMEGA 2019; 4:20252-20256. [PMID: 31815227 PMCID: PMC6893954 DOI: 10.1021/acsomega.9b02559] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/07/2019] [Indexed: 06/10/2023]
Abstract
We fabricated an electrochemical immunosensor for the detection of cardiac troponin I using β-cyclodextrin-functionalized helical carbon nanotube and ionic liquid functionalized with ferrocene and aldehyde groups. β-Cyclodextrin-functionalized helical carbon nanotube was first modified on the electrode surface. Then, ferrocene- and aldehyde-functionalized ionic liquid was modified on the surface of the electrode through host-guest interaction, resulting in an interface with aldehyde groups. The aldehyde groups attached to the ionic liquid capture antibody directly, which simplifies the fabrication of immunosensor. Because of the use of ionic liquid and helical carbon nanotube, the conductivity of the sensing interface was improved. Thus, the sensitivity of the fabricated immunosensor was increased. The immunosensor for cardiac troponin I shows a linear range from 0.05 to 20 ng mL-1 with a detection limit of 0.04 ng mL-1 (S/N = 3).
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Affiliation(s)
- Guangyu Shen
- Hunan
Province Cooperative Innovation Center for The Construction
& Development of Dongting Lake Ecological Economic Zone and College of Chemistry
and Material Engineering, Hunan University
of Arts and Science, Changde 415000, China
| | - Youming Shen
- Hunan
Province Cooperative Innovation Center for The Construction
& Development of Dongting Lake Ecological Economic Zone and College of Chemistry
and Material Engineering, Hunan University
of Arts and Science, Changde 415000, China
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Acetylcholinesterase biosensor based on functionalized surface of carbon nanotubes for monocrotophos detection. Anal Biochem 2018; 560:12-18. [DOI: 10.1016/j.ab.2018.08.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 08/27/2018] [Accepted: 08/28/2018] [Indexed: 11/20/2022]
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Shen Y, Shen G, Zhang Y. Label-Free Electrochemical Immunosensor Based on Ionic Liquid Containing Dialdehyde As a Novel Linking Agent for the Antibody Immobilization. ACS OMEGA 2018; 3:11227-11232. [PMID: 30320258 PMCID: PMC6173497 DOI: 10.1021/acsomega.8b01298] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Accepted: 08/02/2018] [Indexed: 05/20/2023]
Abstract
Demand for label-free electrochemical immunosensor has resulted in extensive research in improving the conductivity of a sensing interface and antibody immobilization. In this paper, an electrochemical immunosensor for prostate specific antigen based on dialdehyde-functionalized ionic liquid used as a novel linking reagent to replace glutaraldehyde for the antibody immobilization is described. The novel linking reagent enhanced the conductivity of the sensing interface. Thus, the proposed immunosensor had a wider linear range of 0.05-30 ng mL-1, with a lower detection limit of 0.04 ng mL-1 compared with the immunosensor based on glutaraldehyde for the antibody immobilization.
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Affiliation(s)
- Youming Shen
- Hunan
Province Cooperative Innovation Center for The Construction &
Development of Dongting Lake Ecological Economic Zone, College of
Chemistry and Materials Engineering, Hunan
University of Arts and Science, Changde 415000, P. R. China
- Key
Laboratory of Chemical Biology and Traditional Chinese Medicine Research
(Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
| | - Guangyu Shen
- Hunan
Province Cooperative Innovation Center for The Construction &
Development of Dongting Lake Ecological Economic Zone, College of
Chemistry and Materials Engineering, Hunan
University of Arts and Science, Changde 415000, P. R. China
- E-mail:
| | - Youyu Zhang
- Key
Laboratory of Chemical Biology and Traditional Chinese Medicine Research
(Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. China
- E-mail: . Tel/Fax: +86-736-7186115
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Hu Y, Huang Y, Wang Y, Li C, Wong W, Ye X, Sun D. A photoelectrochemical immunosensor based on gold nanoparticles/ZnAgInS quaternary quantum dots for the high-performance determination of hepatitis B virus surface antigen. Anal Chim Acta 2018; 1035:136-145. [PMID: 30224131 DOI: 10.1016/j.aca.2018.06.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 05/29/2018] [Accepted: 06/07/2018] [Indexed: 11/25/2022]
Abstract
ZnAgInS quaternary quantum dots were prepared using glutathione as the capped reagent. Gold nanoparticles (GNPs) were integrated with ZnAgInS QDs to provide a GNPs/ZnAgInS QDs nanocomposite. The morphological image, component and crystal structure of GNPs/ZnAgInS QDs were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD). A glassy carbon electrode surface was coated with GNPs/ZnAgInS QDs nanocomposites to construct an interface for immobilizing the antibody of hepatitis B virus surface antigen (anti-HBsAg). By employing GNPs/ZnAgInS QDs as a photoactive element, a photoelectrochemical immunosensor for hepatitis B virus surface antigen (HBsAg) was developed. The results indicate that gold nanoparticles can dramatically enhance the photocurrent response of ZnAgInS QDs and thus improving the sensing performances of the immunosensor. The experimental conditions including incubation time, incubation temperature, and ascorbic acid concentration were optimized. The relative photocurrent decline [Ri = ΔI/I0= (I0 - I)/I0] shows a linear relationship to the logarithm of HBsAg concentration [lg(c, ng mL-1)] in the range from 0.005 to 30 ng mL-1. A detection limit of 0.5 pg mL-1 was obtained. The immunosensor shows excellent sensitivity, selectivity, stability and reproducibility. The HBsAg concentrations in clinical serum samples were also accurately determined with this new photoelectrochemical immunosensor.
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Affiliation(s)
- Ye Hu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yajiao Huang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yanying Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), Wuhan, 430074, China
| | - Chunya Li
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), Wuhan, 430074, China
| | - WingLeung Wong
- School of Chemical and Environmental Engineering, International Healthcare Innovation Institute (Jiangmen), Wuyi University, Jiangmen, 529020, China
| | - Xiaoxue Ye
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, China; National Demonstration Center for Experimental Ethnopharmacology Education (South-Central University for Nationalities), Wuhan, 430074, China.
| | - Dong Sun
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.
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Wang Z, Li Y, Liang W, Zheng J, Li S, Hu C, Chen A. A Highly Sensitive Detection System based on Proximity-dependent Hybridization with Computer-aided Affinity Maturation of a scFv Antibody. Sci Rep 2018; 8:3837. [PMID: 29497069 PMCID: PMC5832849 DOI: 10.1038/s41598-018-22111-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 02/14/2018] [Indexed: 01/10/2023] Open
Abstract
The hepatitis B virus (HBV) infection is a critical health problem worldwide, and HBV preS1 is an important biomarker for monitoring HBV infection. Previously, we found that a murine monoclonal antibody, mAb-D8, targets the preS1 (aa91-107) fragment of HBV. To improve its performance, we prepared the single-chain variable region of mAb-D8 (scFvD8) and constructed the three-dimensional structure of the scFvD8-preS1 (aa91-107) complex by computer modelling. The affinity of scFvD8 was markedly increased by the introduction of mutations L96Tyr to Ser and H98Asp to Ser. Furthermore, a highly sensitive immunosensor was designed based on a proximity-dependent hybridization strategy in which the preS1 antigen competitively reacts with an antibody labelled with DNA, resulting in decreased proximity-dependent hybridization and increased electrochemical signal from the Fc fragment, which can be used for the quantisation of preS1. The results showed a wide detection range from 1 pM to 50 pM with a detection limit of 0.1 pM. The sensitivity and specificity of this immunosensor in clinical serum samples were 100% and 96%, respectively. This study provides a novel system based on proximity-dependent hybridization and the scFv antibody fragment for the rapid quantisation of antigens of interest with a high sensitivity.
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Affiliation(s)
- Zhiheng Wang
- Department of Clinical Biochemistry, College of Medical Laboratory, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, PR China
| | - Yan Li
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, PR China
| | - Wenbin Liang
- Department of Clinical Biochemistry, College of Medical Laboratory, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, PR China
| | - Junsong Zheng
- Department of Clinical Laboratory Science, College of Medical Laboratory, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, PR China
| | - Shuhui Li
- Department of Clinical Biochemistry, College of Medical Laboratory, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, PR China
| | - Chuanmin Hu
- Department of Clinical Biochemistry, College of Medical Laboratory, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, PR China
| | - An Chen
- Department of Clinical Biochemistry, College of Medical Laboratory, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, PR China.
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