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Oliveira Soté W, de Araújo Rodrigues AA, Comar Junior M. In Silico Evaluation of Oligomeric Representations for Molecularly Imprinted Polymer Modeling Using a Biological Template. J Chem Inf Model 2023; 63:6740-6755. [PMID: 37902716 DOI: 10.1021/acs.jcim.3c01461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Molecularly imprinted polymers (MIPs) have significant relevance to analytical sensing due to their functionalized and template-specific structurally complementary cavities, providing increased sensibility and specificity for instrumental analyses, thereby enabling a wide variety of applications, especially for biological processes. Designing and developing MIPs entirely by experimental approaches are time-consuming and costly processes; thus, computational tools are used to assess some of the most critical parameters for imprinting, such as ligand screening. A typical practice is to model functional ligands as monomers; however, this representation fails to predict how ligand-template interactions evolve during polymer growth. In this context, this work aims to evaluate whether additional oligomeric representations affect the formation of noncovalent complexes between typical ligands and the P31 Asian lineage Zika virus epitope, using classical molecular dynamics. The ligands 2-vinylpyridine, 4-vinylaniline, acrylic acid, acrylamide, and 2-hidroxyethyl methacrylate were simulated as monomers, trimers, pentamers, and decamers, and their influence on the epitope structural conservation and ligand-template interactions were evaluated. Analyses of root-mean-square deviation, fluctuation, radius of gyration, pair correlation function, and number of hydrogen bonding-type interactions were conducted, showing the ligand chain size had an influence on the complex formation. However, this influence had no discernible pattern, exhibiting better performance in some cases while noninfluential in others. Of particular significance, in terms of epitope structural conservation, distinct oligomeric chains led to the selection of the distinct most interactive ligands. This observation raises important questions regarding the use of oligomeric chains in MIP simulations, thus prompting the need for further investigations of this subject.
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Affiliation(s)
- William Oliveira Soté
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38400-902, Brazil
| | | | - Moacyr Comar Junior
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia 38400-902, Brazil
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2
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Subodh, Ravina, Priyanka, Narang J, Mohan H. Biosensors for phytohormone Abscisic acid and its role in humans: A review. SENSORS INTERNATIONAL 2023. [DOI: 10.1016/j.sintl.2023.100234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
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3
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Colorimetric and electrochemical detection of ligase through ligation reaction-induced streptavidin assembly. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.10.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gao D, Cheng F, Wang X, Yang H, Liu C, Li C, Yang EM, Cheng G, He W. Developing G value as an indicator for assessing the molecular status of immobilized antibody. Colloids Surf B Biointerfaces 2022; 217:112593. [PMID: 35665639 DOI: 10.1016/j.colsurfb.2022.112593] [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: 02/26/2022] [Revised: 05/08/2022] [Accepted: 05/21/2022] [Indexed: 10/18/2022]
Abstract
Antibody-functionalized nanoparticles (Ab-NPs) are widely used in bioassays due to their excellent affinity, specificity toward antigen, and ease of operation. However, the uncontrollable molecular status of antibodies on NPs severely limits their applications. This work aims at developing a simple method to evaluate the antigen-binding activity of Ab-NPs using two parameters, i.e., antibody adsorption amount and antigen-binding strength. Herein, we proposed a mathematical expression, G, to quantitively describe the amount and strength of Ab-NPs. G value could be used to assess the antigen-binding performance of NPs influenced by surface and solution factors. Seven types of polymers with different surface properties, including four positively and three negatively charged polymer brushes, were grown from silica NPs via surface-initiated atom transfer radical polymerization (SI-ATRP). A pair of antigen and antibody, human chorionic gonadotropin (hCG) and anti-hCG, were selected to screen the antibody immobilization property of polymer brushes. Among them, the G values of 2 polymer-NPs with opposite charges reached maximum, resulting in low detection limits for hCG, where pDMAEA-NP and pMMA-NP represent Poly[N,N-(dimethylamino)ethyl acrylate]-NP and poly(methyl methacrylate)-NP, respectively. The G value of Ab-NPs makes it feasible to estimate the molecular status of the adsorbed antibodies on surfaces, thus showing great potential for in vitro biosensing and bioseparation.
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Affiliation(s)
- Dongdong Gao
- Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Fang Cheng
- Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; Ningbo Institute of Dalian University of Technology, Ningbo 315211, China.
| | - Xinglong Wang
- Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Heqing Yang
- Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China; State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Chong Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
| | - Chunmei Li
- Tsinglan School, Songshan Lake, Dongguan 523000, China
| | | | - Gang Cheng
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Wei He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China; Department of Polymer Science & Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian 116023, China
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Feng Y, Liu G, La M, Liu L. Colorimetric and Electrochemical Methods for the Detection of SARS-CoV-2 Main Protease by Peptide-Triggered Assembly of Gold Nanoparticles. Molecules 2022; 27:molecules27030615. [PMID: 35163874 PMCID: PMC8840628 DOI: 10.3390/molecules27030615] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/03/2022] [Accepted: 01/15/2022] [Indexed: 01/27/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) main protease (Mpro) has been regarded as one of the ideal targets for the development of antiviral drugs. The currently used methods for the probing of Mpro activity and the screening of its inhibitors require the use of a double-labeled peptide substrate. In this work, we suggested that the label-free peptide substrate could induce the aggregation of AuNPs through the electrostatic interactions, and the cleavage of the peptide by the Mpro inhibited the aggregation of AuNPs. This fact allowed for the visual analysis of Mpro activity by observing the color change of the AuNPs suspension. Furthermore, the co-assembly of AuNPs and peptide was achieved on the peptide-covered electrode surface. Cleavage of the peptide substrate by the Mpro limited the formation of AuNPs/peptide assembles, thus allowing for the development of a simple and sensitive electrochemical method for Mpro detection in serum samples. The change of the electrochemical signal was easily monitored by electrochemical impedance spectroscopy (EIS). The detection limits of the colorimetric and electrochemical methods are 10 and 0.1 pM, respectively. This work should be valuable for the development of effective antiviral drugs and the design of novel optical and electrical biosensors.
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Affiliation(s)
- Yunxiao Feng
- College of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467000, China;
| | - Gang Liu
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China;
- College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450011, China
| | - Ming La
- College of Chemistry and Chemical Engineering, Pingdingshan University, Pingdingshan 467000, China;
- Correspondence: (M.L.); (L.L.)
| | - Lin Liu
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China;
- Correspondence: (M.L.); (L.L.)
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Veni, Vidi, Vici: Immobilized Peptide-Based Conjugates as Tools for Capture, Analysis, and Transformation. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10010031] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Analysis of peptide biomarkers of pathological states of the organism is often a serious challenge, due to a very complex composition of the cell and insufficient sensitivity of the current analytical methods (including mass spectrometry). One of the possible ways to overcome this problem is sample enrichment by capturing the selected components using a specific solid support. Another option is increasing the detectability of the desired compound by its selective tagging. Appropriately modified and immobilized peptides can be used for these purposes. In addition, they find application in studying the specificity and activity of proteolytic enzymes. Immobilized heterocyclic peptide conjugates may serve as metal ligands, to form complexes used as catalysts or analytical markers. In this review, we describe various applications of immobilized peptides, including selective capturing of cysteine-containing peptides, tagging of the carbonyl compounds to increase the sensitivity of their detection, enrichment of biological samples in deoxyfructosylated peptides, and fishing out of tyrosine–containing peptides by the formation of azo bond. Moreover, the use of the one-bead-one-compound peptide library for the analysis of substrate specificity and activity of caspases is described. Furthermore, the evolution of immobilization from the solid support used in peptide synthesis to nanocarriers is presented. Taken together, the examples presented here demonstrate immobilized peptides as a multifunctional tool, which can be successfully used to solve multiple analytical problems.
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Retout M, Gosselin B, Mattiuzzi A, Ternad I, Jabin I, Bruylants G. Peptide‐Conjugated Silver Nanoparticles for the Colorimetric Detection of the Oncoprotein Mdm2 in Human Serum. Chempluschem 2021; 87:e202100450. [DOI: 10.1002/cplu.202100450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/17/2021] [Indexed: 11/07/2022]
Affiliation(s)
- Maurice Retout
- UCSD: University of California San Diego Bioengineering UNITED STATES
| | - Bryan Gosselin
- Université Libre de Bruxelles: Universite Libre de Bruxelles Ecole polytechnique de Bruxelles BELGIUM
| | - Alice Mattiuzzi
- Université Libre de Bruxelles: Universite Libre de Bruxelles Faculté des sciences BELGIUM
| | - Indiana Ternad
- Universite de Mons - Hainaut: Universite de Mons Faculté des Sciences BELGIUM
| | - Ivan Jabin
- Université Libre de Bruxelles: Universite Libre de Bruxelles Faculté des Sciences BELGIUM
| | - Gilles Bruylants
- Université Libre de Bruxelles Brussels School of Engineering 50, av. F.D. Roosevelt 1050 Brussels BELGIUM
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Abstract
Emerging research in biosensors has attracted much attention worldwide, particularly in response to the recent pandemic outbreak of coronavirus disease 2019 (COVID-19). Nevertheless, initiating research in biosensing applied to the diagnosis of diseases is still challenging for researchers, be it in the preferences of biosensor platforms, selection of biomarkers, detection strategies, or other aspects (e.g., cutoff values) to fulfill the clinical purpose. There are two sides to the development of a diagnostic tool: the biosensor development side and the clinical side. From the development side, the research engineers seek the typical characteristics of a biosensor: sensitivity, selectivity, linearity, stability, and reproducibility. On the other side are the physicians that expect a diagnostic tool that provides fast acquisition of patient information to obtain an early diagnosis or an efficient patient stratification, which consequently allows for making assertive and efficient clinical decisions. The development of diagnostic devices always involves assay developer researchers working as pivots to bridge both sides whose role is to find detection strategies suitable to the clinical needs by understanding (1) the intended use of the technology and its basic principle and (2) the preferable type of test: qualitative or quantitative, sample matrix challenges, biomarker(s) threshold (cutoff value), and if the system requires a mono- or multiplex assay format. This review highlights the challenges for the development of biosensors for clinical assessment and its broad application in multidisciplinary fields. This review paper highlights the following biosensor technologies: magnetoresistive (MR)-based, transistor-based, quartz crystal microbalance (QCM), and optical-based biosensors. Its working mechanisms are discussed with their pros and cons. The article also gives an overview of the most critical parameters that are optimized by developing a diagnostic tool.
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Li H, Cai T, Ren Y, Huang J, Jiang H, Hou Y, Tang C, Yang J, Zhao J, Yu P. A simple unlabeled human chorionic gonadotropin biosensor based on a peptide aptamer. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4442-4451. [PMID: 34490875 DOI: 10.1039/d1ay01105g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As an essential biochemical indicator in the fields of pregnancy and oncology, human chorionic gonadotropin (HCG) can be evaluated using colloidal gold immunochromatographic paper and quantified using a biochemical analyzer based on the principle of the antibody sandwich method. In view of the inaccuracy of the former and the complication of the latter, this study constructed an accurate, sensitive and simple unlabeled biosensor based on peptide aptamer CGGGPPLRINRHILTR for HCG detection. Molecular Operating Environment (MOE) was used to simulate the aptamer and protein docking, and western blot (WB) was used to verify the binding effect and ratio. The peptide aptamer was characterized and was then reduced with tris-(2-carboxyethyl)-phosphine hydrochloride (TCEP). After electrochemical deposition of chloroauric acid on the screen-printed electrode (SPE), the aptamer was self-assembled on the electrode surface under optimal conditions. The active site of the electrode surface was blocked with 6-mercapto-1-hexanol (MCH) and BSA. The electrochemical impedance spectrum (EIS) was used to quantify HCG in the matrix. Showing a good linear relationship in the range of 5-1500 mIU mL-1, with a detection limit of 1 mIU mL-1, the biosensor remained stable at room temperature for 14 days. Because of its small size, stability, sensitivity and accuracy, this biosensor has great potential to become a portable diagnostic device for HCG.
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Affiliation(s)
- Huanhuan Li
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Tongji Cai
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Yi Ren
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Jing Huang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Hanbing Jiang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Yucui Hou
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Chunhua Tang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Jie Yang
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
| | - Jia Zhao
- Changsha Cinotohi Technology Co., Ltd, No. 229, West Tongzipo Road, Changsha, Hunan 410013, China
| | - Peng Yu
- Xiangya School of Pharmaceutical Sciences, Central South University, No. 172, Tongzipo Road, Changsha 410013, Hunan Province, China
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Combes GF, Vučković AM, Perić Bakulić M, Antoine R, Bonačić-Koutecky V, Trajković K. Nanotechnology in Tumor Biomarker Detection: The Potential of Liganded Nanoclusters as Nonlinear Optical Contrast Agents for Molecular Diagnostics of Cancer. Cancers (Basel) 2021; 13:4206. [PMID: 34439360 PMCID: PMC8393257 DOI: 10.3390/cancers13164206] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 12/24/2022] Open
Abstract
Cancer is one of the leading causes of premature death, and, as such, it can be prevented by developing strategies for early and accurate diagnosis. Cancer diagnostics has evolved from the macroscopic detection of malignant tissues to the fine analysis of tumor biomarkers using personalized medicine approaches. Recently, various nanomaterials have been introduced into the molecular diagnostics of cancer. This has resulted in a number of tumor biomarkers that have been detected in vitro and in vivo using nanodevices and corresponding imaging techniques. Atomically precise ligand-protected noble metal quantum nanoclusters represent an interesting class of nanomaterials with a great potential for the detection of tumor biomarkers. They are characterized by high biocompatibility, low toxicity, and suitability for controlled functionalization with moieties specifically recognizing tumor biomarkers. Their non-linear optical properties are of particular importance as they enable the visualization of nanocluster-labeled tumor biomarkers using non-linear optical techniques such as two-photon-excited fluorescence and second harmonic generation. This article reviews liganded nanoclusters among the different nanomaterials used for molecular cancer diagnosis and the relevance of this new class of nanomaterials as non-linear optical probe and contrast agents.
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Affiliation(s)
- Guillaume F. Combes
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, 21000 Split, Croatia; (G.F.C.); (A.-M.V.); (M.P.B.); (V.B.-K.)
- Mediterranean Institute for Life Sciences (MedILS), 21000 Split, Croatia
| | - Ana-Marija Vučković
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, 21000 Split, Croatia; (G.F.C.); (A.-M.V.); (M.P.B.); (V.B.-K.)
- Mediterranean Institute for Life Sciences (MedILS), 21000 Split, Croatia
| | - Martina Perić Bakulić
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, 21000 Split, Croatia; (G.F.C.); (A.-M.V.); (M.P.B.); (V.B.-K.)
| | - Rodolphe Antoine
- UMR 5306, Centre National de la Recherche Scientifique (CNRS), Institute Lumière Matière, Claude Bernard University Lyon 1, F-69622 Villeurbanne, France;
| | - Vlasta Bonačić-Koutecky
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, 21000 Split, Croatia; (G.F.C.); (A.-M.V.); (M.P.B.); (V.B.-K.)
- Interdisciplinary Center for Advanced Science and Technology (ICAST), University of Split, 21000 Split, Croatia
- Chemistry Department, Humboldt University of Berlin, 12489 Berlin, Germany
| | - Katarina Trajković
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Faculty of Science, University of Split, 21000 Split, Croatia; (G.F.C.); (A.-M.V.); (M.P.B.); (V.B.-K.)
- Mediterranean Institute for Life Sciences (MedILS), 21000 Split, Croatia
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Recent Advancements in Aptamer-Based Surface Plasmon Resonance Biosensing Strategies. BIOSENSORS-BASEL 2021; 11:bios11070233. [PMID: 34356703 PMCID: PMC8301862 DOI: 10.3390/bios11070233] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 12/12/2022]
Abstract
Surface plasmon resonance (SPR) can track molecular interactions in real time, and is a powerful as well as widely used biological and chemical sensing technique. Among the different SPR-based sensing applications, aptamer-based SPR biosensors have attracted significant attention because of their simplicity, feasibility, and low cost for target detection. Continuous developments in SPR aptasensing research have led to the emergence of abundant technical and design concepts. To understand the recent advances in SPR for biosensing, this paper reviews SPR-based research from the last seven years based on different sensing-type strategies and sub-directions. The characteristics of various SPR-based applications are introduced. We hope that this review will guide the development of SPR aptamer sensors for healthcare.
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Gu S, Shi XM, Zhang D, Fan GC, Luo X. Peptide-Based Photocathodic Biosensors: Integrating a Recognition Peptide with an Antifouling Peptide. Anal Chem 2021; 93:2706-2712. [PMID: 33426877 DOI: 10.1021/acs.analchem.0c05234] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Accurate and sensitive detection of targets in practical biological matrixes such as blood, plasma, serum, or tissue fluid is a frontier issue for most biosensors since the coexistence of both potential reducing agents and protein molecules has the possibility of causing signal interference. Herein, aiming at detection in a complex environment, an advanced and robust peptide-based photocathodic biosensor, which integrated a recognition peptide with an antifouling peptide in one probe electrode, was first proposed. Selecting human chorionic gonadotropin (hCG) as a model target, the recognition peptide with the sequence PPLRINRHILTR was first anchored on the CuBi2O4/Au (CBO/Au) photocathode and then the antifouling peptide with the sequence EKEKEKEPPPPC was further anchored to generate an antifouling biointerface. The peptide-based photocathodic biosensor demonstrated excellent anti-interference to both nonspecific proteins and reducing agents because of the capability of the antifouling peptide. It also exhibited good sensitivity owing to the utilization of the recognition peptide rather than an antibody probe. This peptide-integrated method offers a new perspective for practical applications of photocathodic biosensors.
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Affiliation(s)
- Shiting Gu
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiao-Mei Shi
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Di Zhang
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Gao-Chao Fan
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiliang Luo
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Chiu NF, Wang YH, Chen CY. Clinical Application for Screening Down's Syndrome by Using Carboxylated Graphene Oxide-Based Surface Plasmon Resonance Aptasensors. Int J Nanomedicine 2020; 15:8131-8149. [PMID: 33144830 PMCID: PMC7594198 DOI: 10.2147/ijn.s270938] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/29/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Advanced medical detection technology requires high sensitivity and accuracy to increase the disease detection rate. We showed that carboxyl-functionalized graphene oxide (carboxyl-GO) biosensing materials are capable of accurate detection. METHODS We developed a carboxylated GO-based surface plasmon resonance (SPR) aptasensor suitable for screening Down's syndrome in clinical serum. This biosensing material could rapidly and accurately detect hCG protein with a low concentration to identify fetal Down's syndrome. The developed carboxyl-GO-based SPR aptasensor showed excellent sensitivity and limit of detection without the use of antibodies and without any specific preference. RESULTS hCG protein detection limits of 1 pM in buffer samples and 1.9 pM in clinical serum samples were achieved. The results showed that the carboxyl-GO-based chip could detect hCG well below the normal physiological level of serum protein (5.0 mIU/mL). High affinity, sensitivity, and better detection limit were obtained in the range of 1.9 pM to 135 pM. The results showed a 5k-fold dilution factor, and that an SPR angle shift of more than 20 millidegrees (mo) was associated with a significant risk of fetal Down's syndrome compared to normal pregnant women. The results clearly showed that the detection of hCG protein in serum samples from pregnant women at 12-19 weeks could be used to screen Down's syndrome with high selectivity and sensitivity. CONCLUSION Our findings suggest the potential application of carboxyl-GO film in proof-of-concept studies for serum assays as a new type of SPR material. In addition, peptide and carboxyl-GO films may be conducive to the development of future point of care testing and rapid diagnostic devices for other diseases such as cancer.
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Affiliation(s)
- Nan-Fu Chiu
- Laboratory of Nano-Photonics and Biosensors, Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei City 11677, Taiwan
- Department of Life Science, National Taiwan Normal University, Taipei City 11677, Taiwan
| | - Ying-Hao Wang
- Laboratory of Nano-Photonics and Biosensors, Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei City 11677, Taiwan
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei City 10449, Taiwan
| | - Chen-Yu Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei City 10449, Taiwan
- Department of Medicine, Mackay Medical College, Taipei City 25245, Taiwan
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Enhancement of the Peroxidase-Like Activity of Iodine-Capped Gold Nanoparticles for the Colorimetric Detection of Biothiols. BIOSENSORS-BASEL 2020; 10:bios10090113. [PMID: 32882936 PMCID: PMC7558680 DOI: 10.3390/bios10090113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 12/11/2022]
Abstract
A colorimetric assay was developed for the detection of biothiols, based on the peroxidase-like activity of iodine-capped gold nanoparticles (AuNPs). These AuNPs show a synergetic effect in the form of peroxidase-mimicking activity at the interface of AuNPs, while free AuNPs and iodine alone have weak catalytic properties. Thus, iodine-capped AuNPs possess good intrinsic enzymatic activity and trigger the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB), leading to a change in color from colorless to yellow. When added to solution, biothiols, such as cysteine, strongly bind to the interface of AuNPs via gold-thiol bonds, inhibiting the catalytic activity of AuNPs, resulting in a decrease in oxidized TMB. Using this strategy, cysteine could be linearly determined, at a wide range of concentrations (0.5 to 20 μM), with a detection limit of 0.5 μM using UV-Vis spectroscopy. This method was applied for the detection of cysteine in diluted human urine.
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Prasad KS, Abugalyon Y, Li C, Xu F, Li X. A new method to amplify colorimetric signals of paper-based nanobiosensors for simple and sensitive pancreatic cancer biomarker detection. Analyst 2020; 145:5113-5117. [PMID: 32589169 PMCID: PMC7446663 DOI: 10.1039/d0an00704h] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A low-cost, sensitive, and disposable paper-based immunosensor for instrument-free colorimetric detection of pancreatic cancer biomarker PEAK1 was reported for the first time by capitalizing the catalytic properties of gold nanoparticles in colour dye degradation. This simple signal amplification method enhances the detection sensitivity by about 10 fold.
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Affiliation(s)
- K Sudhakara Prasad
- Department of Chemistry, University of Texas at El Paso, 500 West University Avenue, El Paso, Texas 79968, USA.
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Wan Y, Zhao J, He J, Lou X. Nano-Affi: a solution-phase, label-free, colorimetric aptamer affinity assay based on binding-inhibited aggregation of gold nanoparticles. Analyst 2020; 145:4276-4282. [DOI: 10.1039/d0an00827c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The ideal way to assess aptamer affinity is when both aptamer and target are in a native state, without the unpredictable interference associated with labelling and surface immobilization.
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Affiliation(s)
- Yuan Wan
- Department of Chemistry
- Capital Normal University
- Beijing
- China
| | - Jiaxing Zhao
- Department of Chemistry
- Capital Normal University
- Beijing
- China
| | - Junlin He
- State Key Laboratory of Toxicology and Medical Countermeasures
- Beijing Institute of Pharmacology and Toxicology
- Beijing
- China
| | - Xinhui Lou
- Department of Chemistry
- Capital Normal University
- Beijing
- China
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17
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Wang S, Zhang H, Li W, Birech Z, Ma L, Li D, Li S, Wang L, Shang J, Hu J. A multi-channel localized surface plasmon resonance system for absorptiometric determination of abscisic acid by using gold nanoparticles functionalized with a polyadenine-tailed aptamer. Mikrochim Acta 2019; 187:20. [PMID: 31807965 DOI: 10.1007/s00604-019-4003-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/03/2019] [Indexed: 11/29/2022]
Abstract
A multi-channel localized surface plasmon resonance system is described for absorptiometric determination of abscisic acid (ABA). The system is making use of gold nanoparticles and consists of a broadband light source, a multi-channel alignment device, and a fiber spectrometer. The method is based on the specific interaction between an ABA-binding aptamer and ABA. This induces the growth of gold nanoparticles (AuNPs) functionalized with a polyadenine-tailed aptamer that act as optical probes. Different concentrations of ABA give rise to varied morphologies of grown AuNPs. This causes a change of absorption spectra which is recorded by the system. ABA can be quantified by measurement of the peak wavelength shifts of grown AuNPs. Under optimized conditions, this method shows a linear relationship in the 1 nM to 10 μM ABA concentration range. The detection limit is 0.51 nM. The sensitivity of the ABA assay is strongly improved compared to the method based on salt-induced AuNP aggregation. This is attributed to the use of a poly-A-tailed aptamer and the catalytic ability of AuNPs. In the actual application, the ABA concentration of ABA in fresh leaves of rice is measured with the maximum relative error of 8.03% in comparison with the ELISA method. Graphical abstractSchematic representation of an absorptiometric approach for determination of abscisic acid based on the growth of polyA-tailed aptamer-AuNPs probes and a multi-channel localized surface plasmon resonance system.
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Affiliation(s)
- Shun Wang
- College of Science, Henan Agricultural University, Zhengzhou, 450002, China.,College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
| | - Hao Zhang
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
| | - Wei Li
- College of Science, Henan Agricultural University, Zhengzhou, 450002, China.,State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, 450002, China
| | - Zephania Birech
- Department of Physics, University of Nairobi, Nairobi, 30197, Kenya
| | - Liuzheng Ma
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
| | - Dongxian Li
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
| | - Shixin Li
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
| | - Ling Wang
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
| | - Junjuan Shang
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China
| | - Jiandong Hu
- College of Mechanical and Electrical Engineering, Henan Agricultural University, Zhengzhou, 450002, China. .,State Key Laboratory of Wheat and Maize Crop Science, Zhengzhou, 450002, China.
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18
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Chiu NF, Kuo CT, Chen CY. High-affinity carboxyl-graphene oxide-based SPR aptasensor for the detection of hCG protein in clinical serum samples. Int J Nanomedicine 2019; 14:4833-4847. [PMID: 31308661 PMCID: PMC6613200 DOI: 10.2147/ijn.s208292] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/17/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The use of functionalized graphene oxide (fGO) has led to a new trend in the sensor field, owing to its high sensitivity with regards to sensing characteristics and easy synthesis procedures. METHODS In this study, we developed an ultra-sensitive carboxyl-graphene oxide (carboxyl-GO)-based surface plasmon resonance (SPR) aptasensor using peptides to detect human chorionic gonadotropin (hCG) in clinical serum samples. The carboxyl-GO based SPR aptasensor provided high affinity and stronger binding of peptides, which are great importance to allow for a non-immunological label-free mechanism. Also, it allows the detection of low concentrations of hCG, which are in turn considered to be important clinical parameters to diagnose ectopic pregnancies and paraneoplastic syndromes. RESULTS The high selectivity of the carboxyl-GO-based SPR aptasensor for hCG recombinant protein was verified by the addition of the interfering proteins bovine serum albumin (BSA) and human serum albumin (HSA), which did not affect the sensitivity of the sensor. The carboxyl-GO-based chip can enhance the assay efficacy of interactions between peptides and had a high affinity binding for a ka of 17×106 M-1S-1. The limit of detection for hCG in clinical serum samples was 1.15 pg/mL. CONCLUSION The results of this study demonstrated that the carboxyl-GO-based SPR aptasensor had excellent sensitivity, affinity and selectivity, and thus the potential to be used as disease-related biomarker assay to allow for an early diagnosis, and possibly a new area in the field of biochemical sensing technology.
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Affiliation(s)
- Nan-Fu Chiu
- Laboratory of Nano-Photonics and Biosensors, Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei11677, Taiwan
| | - Chia-Tzu Kuo
- Laboratory of Nano-Photonics and Biosensors, Institute of Electro-Optical Engineering, National Taiwan Normal University, Taipei11677, Taiwan
| | - Chen-Yu Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei City10449, Taiwan
- Department of Medicine, Mackay Medical College, Taipei252, Taiwan
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19
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Chang CC, Chen CP, Wu TH, Yang CH, Lin CW, Chen CY. Gold Nanoparticle-Based Colorimetric Strategies for Chemical and Biological Sensing Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E861. [PMID: 31174348 PMCID: PMC6631916 DOI: 10.3390/nano9060861] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 12/18/2022]
Abstract
Gold nanoparticles are popularly used in biological and chemical sensors and their applications owing to their fascinating chemical, optical, and catalytic properties. Particularly, the use of gold nanoparticles is widespread in colorimetric assays because of their simple, cost-effective fabrication, and ease of use. More importantly, the gold nanoparticle sensor response is a visual change in color, which allows easy interpretation of results. Therefore, many studies of gold nanoparticle-based colorimetric methods have been reported, and some review articles published over the past years. Most reviews focus exclusively on a single gold nanoparticle-based colorimetric technique for one analyte of interest. In this review, we focus on the current developments in different colorimetric assay designs for the sensing of various chemical and biological samples. We summarize and classify the sensing strategies and mechanism analyses of gold nanoparticle-based detection. Additionally, typical examples of recently developed gold nanoparticle-based colorimetric methods and their applications in the detection of various analytes are presented and discussed comprehensively.
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Affiliation(s)
- Chia-Chen Chang
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu 310, Taiwan.
| | - Chie-Pein Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei 104, Taiwan.
| | - Tzu-Heng Wu
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei 106, Taiwan.
| | - Ching-Hsu Yang
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei 106, Taiwan.
| | - Chii-Wann Lin
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu 310, Taiwan.
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei 106, Taiwan.
- Department of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Chen-Yu Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei 104, Taiwan.
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20
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Dąbrowski M, Zimińska A, Kalecki J, Cieplak M, Lisowski W, Maksym R, Shao S, D'Souza F, Kuhn A, Sharma PS. Facile Fabrication of Surface-Imprinted Macroporous Films for Chemosensing of Human Chorionic Gonadotropin Hormone. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9265-9276. [PMID: 30714713 DOI: 10.1021/acsami.8b17951] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We present an improved approach for the preparation of highly selective and homogeneous molecular cavities in molecularly imprinted polymers (MIPs) via the combination of surface imprinting and semi-covalent imprinting. Toward that, first, a colloidal crystal mold was prepared via the Langmuir-Blodgett (LB) technique. Then, human chorionic gonadotropin (hCG) template protein was immobilized on the colloidal crystal mold. Later, hCG derivatization with electroactive functional monomers via amide chemistry was performed. In a final step, optimized potentiostatic polymerization of 2,3'-bithiophene enabled depositing an MIP film as the macroporous structure. This synergistic strategy resulted in the formation of molecularly imprinted cavities exclusively on the internal surface of the macropores, which were accessible after dissolution of silica molds. The recognition of hCG by the macroporous MIP film was transduced with the help of electric transducers, namely, extended-gate field-effect transistors (EG-FET) and capacitive impedimetry (CI). These readout strategies offered the ability to create chemosensors for the label-free determination of the hCG hormone. Other than the simple confirmation of pregnancy, hCG assay is a common tool for the diagnosis and follow-up of ectopic pregnancy or trophoblast tumors. Concentration measurements with these EG-FET and CI-based devices allowed real-time measurements of hCG in the range of 0.8-50 and 0.17-2.0 fM, respectively, in 10 mM carbonate buffer (pH = 10). Moreover, the selectivity of chemosensors with respect to protein interferences was very high.
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Affiliation(s)
- Marcin Dąbrowski
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Agnieszka Zimińska
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
- Department of Biomaterials Chemistry, Faculty of Pharmacy with Laboratory Medicine Division , Medical University of Warsaw , Banacha 1 , 02-097 Warsaw , Poland
| | - Jakub Kalecki
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Maciej Cieplak
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Wojciech Lisowski
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Radosław Maksym
- Department of Reproductive Health, Center of Postgraduate Medical Education , St. Sophia Hospital , Zelazna 90 , 01-004 Warsaw , Poland
| | - Shuai Shao
- Department of Chemistry , University of North Texas , 1155 Union Circle No. 305070 , Denton , Texas 76203-5017 , United States
| | - Francis D'Souza
- Department of Chemistry , University of North Texas , 1155 Union Circle No. 305070 , Denton , Texas 76203-5017 , United States
| | - Alexander Kuhn
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP , 16 Avenue Pey Berland , 33607 Pessac , France
| | - Piyush S Sharma
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
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21
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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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22
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Chang CC, Lee CH, Wu TH, Chen CP, Chen CY, Lin CW. Reversion of gold nanoparticle aggregates for the detection of Cu 2+ and its application in immunoassays. Analyst 2018; 142:4684-4690. [PMID: 29119996 DOI: 10.1039/c7an01511a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A high concentration of copper is a hazardous element to organisms and human health. Although various strategies have been reported for the sensitive detection of copper, a facile and rapid detection of aqueous copper has seldom been addressed to date. Here, we present an easy and accessible colorimetric method to detect Cu2+ using the redispersion of cysteamine-modified gold nanoparticles (CA-AuNPs). Initially, CA caused the aggregation of AuNPs due to the electrostatic interaction and aggregated AuNPs can be regenerated in basic medium. The subsequent addition of Cu2+ to the CA-AuNP dispersion could effectively trigger the aggregation of CA-AuNPs, resulting from the coordination reactivity between the deprotonated CA and Cu2+. This strategy resulted in a detection limit (LOD) of 1.52 μM in drinking water, which is below the U.S. Environmental Protection Agency permissible limit (20 μM). To demonstrate the broad application of CA-AuNPs, we further applied this method to plasmonic immunoassays based on the competitive interaction of Cu2+ between CA-AuNPs and enzymes. The LOD of the Down syndrome biomarker hyperglycosylated human chorionic gonadotropin (H-hCG) was 0.125 mIU mL-1, which is better than that of commercial immunoassays. Importantly, the determination of H-hCG in serum indicates its applicability for the measurement of real samples. Our assay agrees well with the current immunoassay systems and thus it can easily be expanded to a more common sensing platform for different types of biotargets by changing the corresponding antibodies.
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Affiliation(s)
- Chia-Chen Chang
- Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan.
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23
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Ultrasensitive ELISA for the detection of hCG based on assembled gold nanoparticles induced by functional polyamidoamine dendrimers. Anal Chim Acta 2018; 1042:116-124. [DOI: 10.1016/j.aca.2018.08.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 08/20/2018] [Indexed: 11/21/2022]
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24
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Freitas de Freitas L, Varca GHC, Dos Santos Batista JG, Benévolo Lugão A. An Overview of the Synthesis of Gold Nanoparticles Using Radiation Technologies. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E939. [PMID: 30445694 PMCID: PMC6266156 DOI: 10.3390/nano8110939] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 10/22/2018] [Accepted: 10/24/2018] [Indexed: 02/07/2023]
Abstract
At a nano-level, optical properties of gold are unique and gave birth to an emerging platform of nanogold-based systems for diverse applications, because gold nanoparticle properties are tunable as a function of size and shape. Within the available techniques for the synthesis of gold nanoparticles, the radiolytic synthesis allows proper control of the nucleation process without the need for reducing agents, in a single step, combined or not with simultaneous sterilization. This review details and summarizes the use of radiation technologies for the synthesis and preparation of gold nanoparticles concerning fundamental aspects, mechanism, current pathways for synthesis and radiation sources, as well as briefly outlines final applications and some toxicity aspects related to nanogold-based systems.
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Affiliation(s)
- Lucas Freitas de Freitas
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP. Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil.
| | - Gustavo Henrique Costa Varca
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP. Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil.
| | - Jorge Gabriel Dos Santos Batista
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP. Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil.
| | - Ademar Benévolo Lugão
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP. Av. Prof. Lineu Prestes, No. 2242, Cidade Universitária, São Paulo 05508-000, Brazil.
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25
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Chiu NF, Chen CC, Yang CD, Kao YS, Wu WR. Enhanced Plasmonic Biosensors of Hybrid Gold Nanoparticle-Graphene Oxide-Based Label-Free Immunoassay. NANOSCALE RESEARCH LETTERS 2018; 13:152. [PMID: 29767347 PMCID: PMC5955872 DOI: 10.1186/s11671-018-2565-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 05/01/2018] [Indexed: 05/23/2023]
Abstract
In this study, we propose a modified gold nanoparticle-graphene oxide sheet (AuNP-GO) nanocomposite to detect two different interactions between proteins and hybrid nanocomposites for use in biomedical applications. GO sheets have high bioaffinity, which facilitates the attachment of biomolecules to carboxyl groups and has led to its use in the development of sensing mechanisms. When GO sheets are decorated with AuNPs, they introduce localized surface plasmon resonance (LSPR) in the resonance energy transfer of spectral changes. Our results suggest a promising future for AuNP-GO-based label-free immunoassays to detect disease biomarkers and rapidly diagnose infectious diseases. The results showed the detection of antiBSA in 10 ng/ml of hCG non-specific interfering protein with dynamic responses ranging from 1.45 nM to 145 fM, and a LOD of 145 fM. Considering the wide range of potential applications of GO sheets as a host material for a variety of nanoparticles, the approach developed here may be beneficial for the future integration of nanoparticles with GO nanosheets for blood sensing. The excellent anti-interference characteristics allow for the use of the biosensor in clinical analysis and point-of-care testing (POCT) diagnostics of rapid immunoassay products, and it may also be a potential tool for the measurement of biomarkers in human serum.
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Affiliation(s)
- Nan-Fu Chiu
- Laboratory of Nano-photonics and Biosensors, Institute of Electro-Optical Science and Technology, National Taiwan Normal University, No. 88, Sec. 4, Ting-Chou Road, Taipei, 11677 Taiwan
| | - Chi-Chu Chen
- Laboratory of Nano-photonics and Biosensors, Institute of Electro-Optical Science and Technology, National Taiwan Normal University, No. 88, Sec. 4, Ting-Chou Road, Taipei, 11677 Taiwan
| | - Cheng-Du Yang
- Laboratory of Nano-photonics and Biosensors, Institute of Electro-Optical Science and Technology, National Taiwan Normal University, No. 88, Sec. 4, Ting-Chou Road, Taipei, 11677 Taiwan
| | - Yu-Sheng Kao
- Laboratory of Nano-photonics and Biosensors, Institute of Electro-Optical Science and Technology, National Taiwan Normal University, No. 88, Sec. 4, Ting-Chou Road, Taipei, 11677 Taiwan
| | - Wei-Ren Wu
- Laboratory of Nano-photonics and Biosensors, Institute of Electro-Optical Science and Technology, National Taiwan Normal University, No. 88, Sec. 4, Ting-Chou Road, Taipei, 11677 Taiwan
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26
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Wang W, Zou Y, Yan J, Liu J, Chen H, Li S, Zhang L. Ultrasensitive colorimetric immunoassay for hCG detection based on dual catalysis of Au@Pt core-shell nanoparticle functionalized by horseradish peroxidase. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 193:102-108. [PMID: 29223051 DOI: 10.1016/j.saa.2017.12.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/11/2017] [Accepted: 12/02/2017] [Indexed: 06/07/2023]
Abstract
In this paper, an ultrasensitive colorimetric biosensor for human chorionic gonadotrophin (hCG) detection was designed from bottom-up method based on the dual catalysis of the horseradish peroxidase (HRP) and Au@Pt nanoparticles (NPs) relative to H2O2-TEM system. HRP and monoclonal mouse anti-hCG antibody (β-submit, mAb1) were co-immobilized onto the Au@Pt NP surface to improve catalytic efficiency and specificity, which formed a dual functionalized Au@Pt-HRP probe with the mean size of 42.8nm (D50). The colorimetric immunoassay was developed for the hCG detection, and the Au@Pt-HRP probe featured a higher sensitivity in the concentration range of 0.4-12.8IUL-1 with a low limit of detection (LOD) of 0.1IUL-1 compared with the LODs of 0.8IUL-1 for BA-ELISA and of 2.0IUL-1 for Au@Pt, which indicated that the Au@Pt-HRP probe possessed higher catalytic efficiency with 2.8-fold increase over Au@Pt and 33.8-fold increase over HRP. Also, the Au@Pt-HRP probe exhibited good precision and reproducibility, high specificity and acceptable accuracy with CV being less than 15%. The dual functionalized Au@Pt-HRP probe as a type of signal amplified method was firstly applied in the colorimetric immunoassay for the hCG detection.
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Affiliation(s)
- Weiguo Wang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Yake Zou
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Jinwu Yan
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China
| | - Jing Liu
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Huixiong Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510640, PR China; CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, UFR Biomédicale, 45 rue des Saints-Pères, 75270 Paris Cedex 06, France
| | - Shan Li
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China.
| | - Lei Zhang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, PR China.
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27
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El Kurdi R, Patra D. The role of OH - in the formation of highly selective gold nanowires at extreme pH: multi-fold enhancement in the rate of the catalytic reduction reaction by gold nanowires. Phys Chem Chem Phys 2018; 19:5077-5090. [PMID: 28134362 DOI: 10.1039/c6cp08607a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is a quest to understand the mechanism governing the morphology and geometry control of the particle growth of nanomaterials for their optical and catalytic applications. In the available literature, the role of OH- in dictating the size and shape of Au nanowires is unknown. As one of the first examples, herein, we explore how excess OH- ions in CTAB micelles play a significant role during the highly selective formation of gold nanowires having controlled diameters of ∼20-25 nm and length >1 μm, by reducing Au3+ to Au0 in a one pot, simple synthesis procedure in the presence of Ag+ ions. At pH 4-11, the same procedure does not harvest Au NWs, but Au NPs of diameter 50-70 nm, indicating that excess OH- is needed for nanowire formation. XRD, TGA, DSC, EDX, FT-IR and fluorescence spectroscopic analysis confirm that both CTAB and curcumin act as capping and stabilizing agents for Au NWs as well as Au NPs - there is no remarkable difference in the curcumin/CTAB content between Au NWs and NPs prepared in different pH environments. However, changing the CTAB micellar media to DPPC liposome media inhibits the formation of nanowires at pH ∼13; the growth of the Au NPs diminishes in DPPC liposomes, offering smaller NPs of diameter ∼25 to 30 nm, suggesting that the role of CTAB is necessary in nanowire formation. The rate of NW formation has been found to be 0.13 h-1 and the growth mechanism advocates elongation in the [110] facet of Au [110] as opposed to the [100] or [111] facets. Curcumin capped Au nanowires serve as excellent nano-catalysts for the reduction of nitro-compounds and the rate of reduction of 4-nitrophenol, a model compound, by curcumin capped Au NWs is found to be ∼10 fold higher, compared to Au NPs, which signifies that catalytic activities can be dictated by the size and shape of Au NPs.
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Affiliation(s)
- Riham El Kurdi
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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28
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Liang A, Li C, Li D, Luo Y, Wen G, Jiang Z. A facile and sensitive peptide-modulating graphene oxide nanoribbon catalytic nanoplasmon analytical platform for human chorionic gonadotropin. Int J Nanomedicine 2017; 12:8725-8734. [PMID: 29276382 PMCID: PMC5731339 DOI: 10.2147/ijn.s149536] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The nanogold reaction between HAuCl4 and citrate is very slow, and the catalyst graphene oxide nanoribbon (GONR) enhanced the nanoreaction greatly to produce gold nanoparticles (AuNPs) that exhibited strong surface plasmon resonance (SPR) absorption (Abs) at 550 nm and resonance Rayleigh scattering (RRS) at 550 nm. Upon addition of the peptide of human chorionic gonadotropin (hCG), the peptide could adsorb on the GONR surface, which inhibited the catalysis. When hCG was added, peptides were separated from the GONR surface due to the formation of stable peptide-hCG complex, which led to the activation of GONR catalytic effect. With the increase in hCG concentration, the RRS and Abs signal enhanced linearly. The enhanced RRS value showed a good linear relationship with hCG concentration in the range of 0.2-20 ng/mL, with a detection limit of 70 pg/mL. Accordingly, two new GONR catalytic RRS/Abs methods were established for detecting hCG in serum samples.
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Affiliation(s)
- Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin
| | - Chongning Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin
| | - Dan Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin
| | - Yanghe Luo
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin
- School of Food and Bioengineering, Hezhou University, Hezhou, China
| | - Guiqing Wen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Guangxi Normal University, Ministry of Education
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin
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Abstract
Human chorionic gonadotropin (HCG) is a glycoprotein secreted by placental trophoblast cells in pregnancy. HCG is a heterodimer composed of two different α- and β-subunits, with the latter being unique to HCG. As well as being the most important diagnostic markers for pregnancy, HCG is also a tumor marker, therefore, quantitative detection of HCG is of great value. Numerous advanced technologies have been developed for HCG concentration detection including electrochemical immunoassay, chemiluminescent immunoassay, fluorescence immunoassay, resonance scattering spectrometry, atomic emission spectrometry, radioimmunoassay, MS and so on. Some have pursued simple and easy operation, while others have emphasized on accuracy and applications in clinical medicine. This review provides a comprehensive summary of various methods of detecting HCG.
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Ultra-high sensitivity of the non-immunological affinity of graphene oxide-peptide-based surface plasmon resonance biosensors to detect human chorionic gonadotropin. Biosens Bioelectron 2017; 94:351-357. [DOI: 10.1016/j.bios.2017.03.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/24/2017] [Accepted: 03/06/2017] [Indexed: 12/27/2022]
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Wu TH, Chang CC, Vaillant J, Bruyant A, Lin CW. DNA biosensor combining single-wavelength colorimetry and a digital lock-in amplifier within a smartphone. LAB ON A CHIP 2016; 16:4527-4533. [PMID: 27778010 DOI: 10.1039/c6lc01170e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Smartphone camera based gold nanoparticle colorimetry (SCB-AuNP colorimetry) has shown good potential for point-of-care applications. However, due to the use of a camera as a photo-detector, there are major limitations to this technique such as a low bit resolution (∼8 bits mainstream) and a low data acquisition rate. These issues have limited the ultimate sensitivity of smartphone based colorimetry as well as the possibility to integrate efficiently a more sensitive approach such as detection based on a lock-in amplifier (LIA). In this paper, we improve the metrological performance of the smartphone to overcome existing issues by adding the LIA capability to AuNP sensing. In this work, instead of using the camera as a photo-detector, the audio jack is used as a photo-detector reader and function generator for driving a laser diode in order to achieve a smartphone based digital lock-in amplifier AuNP colorimetric (SBLIA-AuNP colorimetry) system. A full investigation on the SBLIA design, parameters and performance is comprehensively provided. It is found that the SBLIA can reduce most of the noise and provides a detection noise-to-signal ratio down to -63 dB, which is much better than the -49 dB of the state-of-the-art SCB based method. A DNA detection experiment is demonstrated to reveal the efficacy of the proposed metrological method. The results are compared to UV-visible spectrometry, which is the gold standard for colorimetric measurement. Based on our results, the SBLIA-AuNP colorimetric system has a detection limit of 0.77 nM on short strand DNA detection, which is 5.7 times better than the 4.36 nM limit of a commercial UV-visible spectrometer. Judging from the results, we believe that the sensitive SBLIA would be further extended to other optical diagnostic tools in the near future.
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Affiliation(s)
- Tzu-Heng Wu
- Institute of Bio-informatics and Bioelectronics, National Taiwan University, Taiwan, Republic of China. and ICD-LNIO, Université de Technologie de Troyes, France.
| | - Chia-Chen Chang
- Institute of Biomedical Engineering, National Taiwan University, Taiwan, Republic of China
| | | | | | - Chii-Wann Lin
- Institute of Bio-informatics and Bioelectronics, National Taiwan University, Taiwan, Republic of China. and Institute of Biomedical Engineering, National Taiwan University, Taiwan, Republic of China
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32
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Wen G, Liang X, Liu Q, Liang A, Jiang Z. A novel nanocatalytic SERS detection of trace human chorionic gonadotropin using labeled-free Vitoria blue 4R as molecular probe. Biosens Bioelectron 2016; 85:450-456. [DOI: 10.1016/j.bios.2016.05.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 04/26/2016] [Accepted: 05/04/2016] [Indexed: 12/27/2022]
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A Graphene Oxide-Based Fluorescent Method for the Detection of Human Chorionic Gonadotropin. SENSORS 2016; 16:s16101699. [PMID: 27754379 PMCID: PMC5087487 DOI: 10.3390/s16101699] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/27/2016] [Accepted: 09/29/2016] [Indexed: 02/06/2023]
Abstract
Human chorionic gonadotropin (hCG) has been regarded as a biomarker for the diagnosis of pregnancy and some cancers. Because the currently used methods (e.g., disposable Point of Care Testing (POCT) device) for hCG detection require the use of many less stable antibodies, simple and cost-effective methods for the sensitive and selective detection of hCG have always been desired. In this work, we have developed a graphene oxide (GO)-based fluorescent platform for the detection of hCG using a fluorescein isothiocyanate (FITC)-labeled hCG-specific binding peptide aptamer (denoted as FITC-PPLRINRHILTR) as the probe, which can be manufactured cheaply and consistently. Specifically, FITC-PPLRINRHILTR adsorbed onto the surface of GO via electrostatic interaction showed a poor fluorescence signal. The specific binding of hCG to FITC-PPLRINRHILTR resulted in the release of the peptide from the GO surface. As a result, an enhanced fluorescence signal was observed. The fluorescence intensity was directly proportional to the hCG concentration in the range of 0.05–20 IU/mL. The detection limit was found to be 20 mIU/mL. The amenability of the strategy to hCG analysis in biological fluids was demonstrated by assaying hCG in the urine samples.
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Retout M, Valkenier H, Triffaux E, Doneux T, Bartik K, Bruylants G. Rapid and Selective Detection of Proteins by Dual Trapping Using Gold Nanoparticles Functionalized with Peptide Aptamers. ACS Sens 2016. [DOI: 10.1021/acssensors.6b00229] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Maurice Retout
- Engineering
of Molecular Nanosystems, Université libre de Bruxelles (ULB), 50 Avenue F.D. Roosevelt, CP165/64, B-1050 Bruxelles, Belgium
| | - Hennie Valkenier
- Engineering
of Molecular Nanosystems, Université libre de Bruxelles (ULB), 50 Avenue F.D. Roosevelt, CP165/64, B-1050 Bruxelles, Belgium
| | - Eléonore Triffaux
- Chimie
Analytique et Chimie des Interfaces, Faculté des Sciences, Université libre de Bruxelles (ULB), Boulevard du Triomphe 2, CP 255, B-1050 Bruxelles, Belgium
| | - Thomas Doneux
- Chimie
Analytique et Chimie des Interfaces, Faculté des Sciences, Université libre de Bruxelles (ULB), Boulevard du Triomphe 2, CP 255, B-1050 Bruxelles, Belgium
| | - Kristin Bartik
- Engineering
of Molecular Nanosystems, Université libre de Bruxelles (ULB), 50 Avenue F.D. Roosevelt, CP165/64, B-1050 Bruxelles, Belgium
| | - Gilles Bruylants
- Engineering
of Molecular Nanosystems, Université libre de Bruxelles (ULB), 50 Avenue F.D. Roosevelt, CP165/64, B-1050 Bruxelles, Belgium
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Wang X, Pauli J, Niessner R, Resch-Genger U, Knopp D. Gold nanoparticle-catalyzed uranine reduction for signal amplification in fluorescent assays for melamine and aflatoxin B1. Analyst 2016; 140:7305-12. [PMID: 26359515 DOI: 10.1039/c5an01300c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A multifunctional fluorescence platform has been constructed based on gold nanoparticle (AuNP)-catalyzed uranine reduction. The catalytic reduction of uranine was conducted in aqueous solution using AuNPs as nanocatalyst and sodium borohydride as reducing reagent, which was monitored by fluorescence and UV-vis spectroscopy. The reaction rate was highly dependent on the concentration, size and dispersion state of AuNPs. When AuNPs aggregated, their catalytic ability decreased, and thereby a label-free fluorescent assay was developed for the detection of melamine, which can be used for melamine determination in milk. In addition, a fluorescent immunoassay for aflatoxin B1 (AFB1) was established using the catalytic reaction for signal amplification based on target-induced concentration change of AuNPs, where AFB1-BSA-coated magnetic beads and anti-AFB1 antibody-conjugated AuNPs were employed as capture and signal probe, respectively. The detection can be accomplished in 1 h and acceptable recoveries in spiked maize samples were achieved. The developed fluorescence system is simple, sensitive and specific, which could be used for the detection of a wide range of analytes.
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Affiliation(s)
- Xu Wang
- Institute of Hydrochemistry, Chair for Analytical Chemistry, Technische Universität München, Marchioninistr. 17, D-81377 München, Germany.
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36
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Xu W, Hong Y, Hu Y, Hao J, Song A. Ultrafine Au and Ag Nanoparticles Synthesized from Self-Assembled Peptide Fibers and Their Excellent Catalytic Activity. Chemphyschem 2016; 17:2157-63. [PMID: 27028550 DOI: 10.1002/cphc.201600182] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Indexed: 01/01/2023]
Abstract
The self-assembly of an amphiphilic peptide molecule to form nanofibers facilitated by Ag(+) ions was investigated. Ultrafine AgNPs (NPs=nanoparticles) with an average size of 1.67 nm were synthesized in situ along the fibers due to the weak reducibility of the -SH group on the peptide molecule. By adding NaBH4 to the peptide solution, ultrafine AgNPs and AuNPs were synthesized with an average size of 1.35 and 1.18 nm, respectively. The AuNPs, AgNPs, and AgNPs/nanofibers all exhibited excellent catalytic activity toward the reduction of 4-nitrophenol, with turnover frequency (TOF) values of 720, 188, and 96 h(-1) , respectively. Three dyes were selected for catalytic degradation by the prepared nanoparticles and the nanoparticles showed selective catalysis activity toward the different dyes. It was a surprising discovery that the ultrafine AuNPs in this work had an extremely high catalytic activity toward methylene blue, with a reaction rate constant of 0.21 s(-1) and a TOF value of 1899 h(-1) .
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Affiliation(s)
- Wenlong Xu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, China
| | - Yue Hong
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, China
| | - Yuanyuan Hu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, China
| | - Aixin Song
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of Education, Jinan, 250100, China.
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37
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Zhang Y, McKelvie ID, Cattrall RW, Kolev SD. Colorimetric detection based on localised surface plasmon resonance of gold nanoparticles: Merits, inherent shortcomings and future prospects. Talanta 2016; 152:410-22. [PMID: 26992537 DOI: 10.1016/j.talanta.2016.02.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 11/30/2022]
Abstract
Localised surface plasmon resonance (LSPR) of gold nanoparticles (AuNPs) has been exploited for two decades in analytical science and has proven to be a powerful tool for the detection of various kinds of substances including small molecules, ions, macro biomolecules and microbes. Detection can be performed by visual colour change observations, photometry or resonance light scattering. A wide range of applications have been studied in the areas of environmental, pharmaceutical and biological analysis and clinical diagnosis. In this article, some fundamental aspects and important applications involving LSPR of AuNPs are reviewed. Several inherent shortcomings of these techniques and possible strategies to circumvent them are discussed.
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Affiliation(s)
- Yanlin Zhang
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - Ian D McKelvie
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia; School of Geography, Earth and Environmental Sciences, Plymouth University, Plymouth PL4 8AA, United Kingdom.
| | - Robert W Cattrall
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - Spas D Kolev
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia; Centre for Aquatic Pollution Identification and Management (CAPIM), The University of Melbourne, Victoria 3010, Australia.
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38
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Chang CC, Chen CP, Chen CY, Lin CW. DNA base-stacking assay utilizing catalytic hairpin assembly-induced gold nanoparticle aggregation for colorimetric protein sensing. Chem Commun (Camb) 2016; 52:4167-70. [PMID: 26906691 DOI: 10.1039/c6cc01238h] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A label-free and enzyme-free colorimetric sensing platform for the amplified detection of fibronectin was developed based on an ingenious combination of catalytic hairpin assembly and a base stacking hybridization-based gold nanoparticle aggregation strategy.
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Affiliation(s)
- Chia-Chen Chang
- Institute of Biomedical Engineering
- National Taiwan University
- Taipei 106
- Republic of China
| | - Chie-Pein Chen
- Department of Obstetrics and Gynecology
- Mackay Memorial Hospital
- Taipei 104
- Republic of China
| | - Chen-Yu Chen
- Department of Obstetrics and Gynecology
- Mackay Memorial Hospital
- Taipei 104
- Republic of China
- Department of Medicine
| | - Chii-Wann Lin
- Institute of Biomedical Engineering
- National Taiwan University
- Taipei 106
- Republic of China
- Institute of Biomedical Electronic and Bioinformatics
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39
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Chang CC, Chen CY, Chuang TL, Wu TH, Wei SC, Liao H, Lin CW. Aptamer-based colorimetric detection of proteins using a branched DNA cascade amplification strategy and unmodified gold nanoparticles. Biosens Bioelectron 2015; 78:200-205. [PMID: 26609945 DOI: 10.1016/j.bios.2015.11.051] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/15/2015] [Accepted: 11/17/2015] [Indexed: 12/22/2022]
Abstract
A branched DNA amplification strategy was employed to design a colorimetric aptameric biosensor using unmodified gold nanoparticles (AuNPs). First, a programmed DNA dendritic nanostructure was formed using two double-stranded substrate DNAs and two single-stranded auxiliary DNAs as assembly components via a target-assisted cascade amplification reaction, and it was then captured by DNA sensing probe-stabilized AuNPs. The release of sensing probes from AuNPs led to the formation of unstable AuNPs, promoting salt-induced aggregation. By integrating the signal amplification capacity of the branched DNA cascade reaction and unmodified AuNPs as a sensing indicator, this amplified colorimetric sensing strategy allows protein detection with high sensitivity (at the femtomole level) and selectivity. The limit of detection of this approach for VEGF was lower than those of other aptamer-based detection methods. Moreover, this assay provides modification-free and enzyme-free protein detection without sophisticated instrumentation and might be generally applicable to the detection of other protein targets in the future.
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Affiliation(s)
- Chia-Chen Chang
- Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan, ROC
| | - Chen-Yu Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei 104, Taiwan, ROC; Department of Medicine, Mackay Medical College, Taipei 252, Taiwan, ROC; Mackay Junior College of Medicine, Nursing, and Management, Taipei 112, Taiwan, ROC
| | - Tsung-Liang Chuang
- Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan, ROC
| | - Tzu-Heng Wu
- Institute of Biomedical Electronic and Bioinformatics, National Taiwan University, Taipei 106, Taiwan, ROC
| | - Shu-Chen Wei
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan, ROC
| | - Hongen Liao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, PR China
| | - Chii-Wann Lin
- Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan, ROC; Institute of Biomedical Electronic and Bioinformatics, National Taiwan University, Taipei 106, Taiwan, ROC; Center for Emerging Material and Advanced Devices, National Taiwan University, Taipei 106, Taiwan, ROC.
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Lai W, Zhuang J, Tang D. Novel colorimetric immunoassay for ultrasensitive monitoring of brevetoxin B based on enzyme-controlled chemical conversion of sulfite to sulfate. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:1982-1989. [PMID: 25660549 DOI: 10.1021/acs.jafc.5b00425] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A simple colorimetric immunoassay for quantitative monitoring of brevetoxin B on a functionalized magnetic bead by using glucose oxidase (GOx)/antibrevetoxin antibody-labeled gold nanoparticle as the signal transduction tag was developed. The assay was carried out on the basis of GOx-controlled sulfite-to-sulfate chemical conversion with a silver(I)-3,3',5,5'-tetramethylbenzidine [Ag(I)-TMB] system. Initially, the sulfite was used as an inhibitor of Ag(I) to hinder the color development of TMB due to the formation of insoluble silver sulfite. Accompanying H2O2 generation with GOx-catalyzed glucose, the sulfite was converted into the sulfate, thus resulting in the colorless-to-blue change. Under the optimal conditions, the absorbance decreased with increasing brevetoxin B from 0.5 to 200 ng/kg with a detection limit of 0.1 ng/kg (ppt). The precision and specificity were acceptable. Furthermore, the methodology gave results matching well with the referenced brevetoxin ELISA kit for monitoring of spiked Musculista senhousia samples.
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Affiliation(s)
- Wenqiang Lai
- State Key Laboratory of Photocatalysis on Energy and Environment, Key Laboratory of Analysis and Detection for Food Safety (Fujian Province and Ministry of Education), Institute of Nanomedicine and Nanobiosensing, Department of Chemistry, Fuzhou University , Fuzhou 350108, People's Republic of China
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