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Chen X, Li M, Wang Z, Zhao K, Gu J, Li Q, He JJ. A Label-Free Optical Biosensor Based on an Array of Microring Resonators for the Detection of Human Serum Albumin. SENSORS (BASEL, SWITZERLAND) 2024; 24:677. [PMID: 38276369 PMCID: PMC10818899 DOI: 10.3390/s24020677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/03/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024]
Abstract
We introduced a label-free sensing system based on an array of microring resonators (MRRs) which was successfully employed for human serum albumin (HSA) detection. The sensing-ring surface was functionalized to immobilize anti-HSA, facilitating HSA binding. Our refractive index sensing system demonstrates high sensitivity at 168 nm/RIU and a low limit of detection (LOD) of 63.54 ng/mL, closely comparable to current HSA detection methods. These findings confirm the potential of MRRs as biocompatible sensors for HSA detection. This system holds great promise as an innovative platform for the detection of HSA, carrying significant importance in medical diagnostics.
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Affiliation(s)
- Xin Chen
- Department of Optical Engineering, School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China; (X.C.); (Z.W.); (K.Z.)
| | - Mingyu Li
- Department of Optical Engineering, School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China; (X.C.); (Z.W.); (K.Z.)
| | - Zhaoyu Wang
- Department of Optical Engineering, School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China; (X.C.); (Z.W.); (K.Z.)
| | - Kaihao Zhao
- Department of Optical Engineering, School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China; (X.C.); (Z.W.); (K.Z.)
| | - Jiamei Gu
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China; (J.G.); (J.-J.H.)
| | - Qiushun Li
- Dezhou Research Institute, Qilu University of Technology (Shandong Academy of Sciences), Dezhou 253084, China
| | - Jian-Jun He
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China; (J.G.); (J.-J.H.)
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Liu X, Gan Y, Li F, Qiu Y, Pan Y, Wan H, Wang P. An Immunocolorimetric Sensing System for Highly Sensitive and High-Throughput Detection of BNP with Carbon-Gold Nanocomposites Amplification. BIOSENSORS 2022; 12:bios12080619. [PMID: 36005015 PMCID: PMC9405646 DOI: 10.3390/bios12080619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/04/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022]
Abstract
Conventional immunocolorimetric sensing of biomolecules continues to be challenged with low sensitivity although its wide application as a diagnostic tool in medicine and biotechnology. Herein, we present a multifunctional immunocolorimetric sensing system for sensitive and high-throughput detection of B-type natriuretic peptide (BNP) with carbon-gold nanocomposite (CGNs) amplification. Using a “green” strategy, monodisperse carbon nanospheres (CNs) were successfully synthesized by glucose carbonization. A simple and efficient hydrothermal method was developed to assemble abundant gold nanoparticles (AuNPs) onto the surfaces of CNs. The resulting CGNs were characterized and utilized for biomarker detection with superior properties of easy manufacturing, good biocompatibility, satisfactory chemical stability, and high loading capacity for biomolecules. As a proof of concept, the as-prepared CGNs were conjugated with horseradish peroxidase-labeled antibody against BNP (CGNs@AntiBNP-HRP) functioning as the carrier, signal amplifier, and detector for the sensitive detection of BNP. Under optimal conditions, the established CGNs@AntiBNP-HRP immunoprobe remarkably enhanced the detection performance of BNP, achieving signal amplification of more than 9 times compared to the conventional method. Based on our self-developed bionic electronic eye (e-Eye) and CGNs@AntiBNP-HRP immunoprobe, the multifunctional sensing system displayed a wide dynamic linear range of 3.9–500 ng/mL and a LOD of 0.640 ng/mL for BNP detection with high specificity, good accuracy and reproducibility. This portable sensing system with enhanced performance demonstrates great potential for BNP detection in point of care applications, and offers a universal and reliable platform for in vitro biomarker detection.
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Affiliation(s)
- Xin Liu
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
- Cancer Centre, Zhejiang University, Hangzhou 310058, China
- Binjiang Institute, Zhejiang University, Hangzhou 310053, China
- State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai 200050, China
| | - Ying Gan
- School of Biomedical Engineering, Tianjin Medical University, Tianjin 300070, China
| | - Fengheng Li
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yong Qiu
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yuxiang Pan
- Research Institute of Intelligent Sensing, Zhejiang Lab, Hangzhou 310027, China
- Correspondence: (Y.P.); (H.W.); (P.W.)
| | - Hao Wan
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
- Cancer Centre, Zhejiang University, Hangzhou 310058, China
- Binjiang Institute, Zhejiang University, Hangzhou 310053, China
- Correspondence: (Y.P.); (H.W.); (P.W.)
| | - Ping Wang
- Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China
- Cancer Centre, Zhejiang University, Hangzhou 310058, China
- Binjiang Institute, Zhejiang University, Hangzhou 310053, China
- State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Shanghai 200050, China
- Correspondence: (Y.P.); (H.W.); (P.W.)
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Gandhi M, Indiramma J, Jayaprakash NS, Kumar AS. An efficient electrochemical sandwich ELISA for urinary human serum albumin-biomarker based on highly redox-active thionine surface-confined MWCNT/PEDOT.PSS platform. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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An electrochemiluminescence immunosensor for the N-terminal brain natriuretic peptide based on the high quenching ability of polydopamine. Mikrochim Acta 2019; 186:606. [PMID: 31385117 DOI: 10.1007/s00604-019-3709-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 07/21/2019] [Indexed: 01/08/2023]
Abstract
A sandwich-type electrochemiluminescence (ECL) immunosensor for the N-terminal brain natriuretic peptide (NT-proBNP) is described. The assay is based on the quenching of the ECL of graphite-like carbon nitride (g-C3N4) by polydopamine (PDA). Two-dimensional g-C3N4 is grown in-situ on titanium dioxide nanoflowers (TiO2 NFs). The macroporous structure of the NFs enhances the interfacial stability of g-C3N4, and also promotes the ECL reaction of g-C3N4 with the co-reactant. The introduction of gold nanoparticles into the matrix further enhances the ECL and facilitates the immobilization of capture antibodies. The nanoquencher used to label the secondary antibody is synthesized by catalytic polymerization of dopamine in the presence of bimetallic NiPd nanoparticles. The nanoquencher preserves the high reactivity of polydopamine and quenches the ECL of the g-C3N4/TiO2 system. Compared to other methods, the detection limit for NT-proBNP is decreased to 50 fg∙mL-1. Graphical abstract Schematic presentation of the electrochemiluminescence (ECL) process of the immunosensor: titanium dioxide nanoflowers@graphite-like carbon nitride-gold nanoparticles (TiO2 NFs@g-C3N4-Au) as luminophor, and polydopamine (PDA) as nanoquencher.
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Zhou Q, Xu W, Zhu L, Yu T, Ma B, Luo Y, Huang K. Preparation of a Monoclonal Antibody against a Kallikrein-Like Enzyme from Agkistrodon halys pallasVenom and Its Application in a Pharmacokinetic Study. ANAL LETT 2013. [DOI: 10.1080/00032719.2013.784914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Salehpour M, Håkansson K, Höglund U, Grahn-Westin A, Nilsson S, Márquez M, Possnert G, Holmberg AR. Application of accelerator mass spectrometry to macromolecules: preclinical pharmacokinetic studies on a polybisphosphonate. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:2453-2458. [PMID: 21818805 DOI: 10.1002/rcm.5149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Data on the use of accelerator mass spectrometry (AMS) in conjunction with in vivo studies of macromolecular drugs are scarce. The present study shows the versatility of this technique when investigating the pharmacokinetics (PK) of a macromolecular drug candidate, a polybisphosphonate conjugate (ODX). The aforementioned is a polymer (molecular weight ~30 kDa) constituting a carbohydrate backbone with covalently linked ligands (aldendronate and aminoguanidine) and is intended for treatment of osteoporosis and the therapy of bone metastasis from prostate cancer. The conjugate is prepared through partial oxidation of the carbohydrate and sequential coupling of the ligands by reductive amination. (14)C was incorporated in the conjugate by means of coupling a commercially available (14)C-lysine in the conjugation sequence. Fifteen rats were injected intravenously with (14)C-labelled ODX (150 µg, 14 Bq/rat) and blood samples were collected at 1, 2, 4, 6, and 24 h post-injection (3 rats/time point). Liver, spleen and kidney samples were collected at 4 and 24 h post-injection. Blood from each time point (triplicate) were collected for AMS measurement determining the isotopic ratio ((14)C/(12)C) and consequently the drug concentration in blood. ODX showed a transient presence in blood circulation; 93% of the total dose was cleared from the circulation within 1 h. The half-life after 1 h was estimated to be about 3 h; 0.7% of the administered (14)C dose of ODX remained in circulation after 24 h. The major (14)C accumulation was in the liver, the spleen and the kidneys indicating the probable route of metabolism and excretion. This study demonstrates the versatility of AMS for pharmacological in vivo studies of macromolecules. Labelling with (14)C is relatively simple, inexpensive and the method requires minimal radioactivity, eliminating the need for radioprotection precautions in contrast to methods using scintillation counting.
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Affiliation(s)
- Mehran Salehpour
- Ion Physics, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.
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