1
|
Wei S, Li S, Xiao H, Zhao F, Zhu J, Chen Z, Cao L. Painless and sensitive pepsinogen I detection: an electrochemical immunosensor based on rhombic dodecahedral Cu 3Pt and MoS 2 NFs. NANOSCALE ADVANCES 2022; 5:133-141. [PMID: 36605809 PMCID: PMC9765571 DOI: 10.1039/d2na00556e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 11/06/2022] [Indexed: 06/17/2023]
Abstract
Gastric cancer (GC) is a common malignant tumour of the digestive tract with a high mortality rate worldwide. However, many patients delay treatment due to the avoidance of the costly and painful procedure of gastroscopy. Therefore, an early convenient screening method is essential to improve the survival rate of GC patients. To address this issue, we constructed an electrochemical immunosensor supported by rhombohedral Cu3Pt and MoS2 nanoflowers (MoS2 NFs) for rapid, painless and quantitative detection of the GC biomarker in vitro. Here, pepsinogen I was employed as a model protein biomarker to analyse the performance of the immunosensor. The rhombohedral dodecahedral Cu3Pt nanoparticles decorated with MoS2-NFs were further functionalized; this allowed the constructed sensor to possess more nano- or micro-structures, thereby improving the detection sensitivity. In specific applications, the corresponding bioactive molecules can be flexibly captured. Under optimal conditions, the immunoassay showed a wide linear range from 500 pg mL-1 to 400 ng mL-1 and a low detection limit of 167 pg mL-1 (S/N = 3). This covers the critical value of 70 ng mL-1, and the results obtained from the analysis of human serum samples were on par with those from the enzyme immunoassay, suggesting significant potential for this new method in daily diagnosis.
Collapse
Affiliation(s)
- Shanshan Wei
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology Guilin 541004 China
| | - Shiyong Li
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology Guilin 541004 China
| | - Haolin Xiao
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology Guilin 541004 China
- School of Life and Environmental Sciences, Guilin University of Electronic Technology Guilin 541004 China
| | - Feijun Zhao
- School of Life and Environmental Sciences, Guilin University of Electronic Technology Guilin 541004 China
| | - Jianming Zhu
- School of Life and Environmental Sciences, Guilin University of Electronic Technology Guilin 541004 China
| | - Zhencheng Chen
- School of Electronic Engineering and Automation, Guilin University of Electronic Technology Guilin 541004 China
- School of Life and Environmental Sciences, Guilin University of Electronic Technology Guilin 541004 China
| | - Liangli Cao
- School of Life and Environmental Sciences, Guilin University of Electronic Technology Guilin 541004 China
| |
Collapse
|
2
|
Analysis of Gastric Diseases and Their Symptoms Based on Indexes of Pepsinogen I (PGI) and Pepsinogen II (PGII): Take 1106 Patients as Samples. Cell Microbiol 2022. [DOI: 10.1155/2022/8393351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study, preoperative analysis of 1106 gastropathy patients with abdominal pain, vomiting, dyspepsia, and other symptoms was conducted. Independent sample
-test and correlation analysis and other ways were used for data cleansing and analysis. Findings were as follows: (1) Samples of different genders showed significance in PGI and PGII. The PGI and PGII values of women were significantly lower than those of men. (2) Age showed a significant positive correlation with PGI and PGII, which indicates that as the age increases, the PGI and PGII values become higher. (3) There was a significant negative correlation between age and abdominal pain. This signified that the younger the patient is, the more likely they will suffer abdominal pain. (4) PGI displayed a positive correlation with abdominal pain in the digestive tract (dyspepsia, gastrointestinal ulcers, gastrointestinal bleeding, etc.). It indicated that the higher the PGI value is, the more likely the patients will suffer abdominal pain and gastrointestinal diseases (dyspepsia, gastrointestinal ulcer, gastrointestinal hemorrhage, etc.). (5) PGII displayed a significant positive correlation with gastrointestinal diseases (dyspepsia, gastrointestinal ulcer, gastrointestinal hemorrhage, etc.) and a negative correlation with gastropathy (acute gastritis, chronic superficial gastritis, gastric ulcer, etc.). It indicated that the higher the value of PGII is, the more likely the patients will suffer symptoms of gastrointestinal diseases (dyspepsia, gastrointestinal ulcer, gastrointestinal hemorrhage, etc.), while less likely the patients will suffer gastropathy (acute gastritis, chronic superficial gastritis, gastric ulcer, etc.).
Collapse
|
3
|
Scanning electrochemical microscopy in the development of enzymatic sensors and immunosensors. Biosens Bioelectron 2019; 141:111411. [PMID: 31228730 DOI: 10.1016/j.bios.2019.111411] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/24/2019] [Accepted: 06/03/2019] [Indexed: 01/05/2023]
Abstract
Scanning electrochemical microscopy (SECM) is very useful, non-invasive tool for the analysis of surfaces pre-modified with biomolecules or by whole cells. This review focuses on the application of SECM technique for the analysis of surfaces pre-modified with enzymes (horseradish peroxidase, alkaline phosphatase and glucose oxidase) or labelled with antibody-enzyme conjugates. The working principles and operating modes of SECM are outlined. The applicability of feedback, generation-collection and redox competition modes of SECM on surfaces modified by enzymes or labelled with antibody-enzyme conjugates is discussed. SECM is important in the development of miniaturized bioanalytical systems with enzymes, since it can provide information about the local enzyme activity. Technical challenges and advantages of SECM, experimental parameters, used enzymes and redox mediators, immunoassay formats and analytical parameters of enzymatic SECM sensors and immunosensors are reviewed.
Collapse
|
4
|
Label-free detection of pepsinogen 1 and 2 by polyethylene coating Lamb microfluidic device. Biosens Bioelectron 2019; 129:231-237. [PMID: 30287174 DOI: 10.1016/j.bios.2018.09.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/10/2018] [Accepted: 09/20/2018] [Indexed: 11/22/2022]
Abstract
Early screening of gastric cancer is a critical importance for the improvement of patients' survival rate. Here, a polyethylene coating Lamb (PE-Lamb) microfluidic device with immune layer for gastric cancer label-free detection was constructed. Two serum pepsinogen 1 (PG1) and pepsinogen 2 (PG2) biomarkers were applied to screen and predict the appearance of gastric cancer. Compared with enzyme-linked immunosorbent assay (ELISA), this method achieved a higher sensitivity and less time (40 min vs 120 min). The limit of detections (LOD) were reached 60 pg/mL for PG1 and 30 pg/mL for PG2, which have two orders of magnitude lower than traditional ELISA. The linearity coefficient indexes (R2) for PG1 and PG2 were 0.992 and 0.953 respectively, which is similar to that of ELISA. In addition, PG1 and PG2 mixed antigens sample with human serum was detected by PE-Lamb approach, and the frequency response showed high reproducibility and specificity. The results indicate that PE-lamb diagnostic technique is a novel and promising method for high-throughput screening and early diagnosis of gastric cancer.
Collapse
|
5
|
Huang L, Li Z, Lou Y, Cao F, Zhang D, Li X. Recent Advances in Scanning Electrochemical Microscopy for Biological Applications. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1389. [PMID: 30096895 PMCID: PMC6119995 DOI: 10.3390/ma11081389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/24/2018] [Accepted: 07/28/2018] [Indexed: 12/17/2022]
Abstract
Scanning electrochemical microscopy (SECM) is a chemical microscopy technique with high spatial resolution for imaging sample topography and mapping specific chemical species in liquid environments. With the development of smaller, more sensitive ultramicroelectrodes (UMEs) and more precise computer-controlled measurements, SECM has been widely used to study biological systems over the past three decades. Recent methodological breakthroughs have popularized SECM as a tool for investigating molecular-level chemical reactions. The most common applications include monitoring and analyzing the biological processes associated with enzymatic activity and DNA, and the physiological activity of living cells and other microorganisms. The present article first introduces the basic principles of SECM, followed by an updated review of the applications of SECM in biological studies on enzymes, DNA, proteins, and living cells. Particularly, the potential of SECM for investigating bacterial and biofilm activities is discussed.
Collapse
Affiliation(s)
- Luyao Huang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Ziyu Li
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Yuntian Lou
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Fahe Cao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
| | - Dawei Zhang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Xiaogang Li
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| |
Collapse
|
6
|
Ning X, Xiong Q, Zhang F, He P. Simultaneous detection of tumor markers in lung cancer using scanning electrochemical microscopy. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.01.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
Morkvenaite-Vilkonciene I, Ramanaviciene A, Genys P, Ramanavicius A. Evaluation of Enzymatic Kinetics of GOx-based Electrodes by Scanning Electrochemical Microscopy at Redox Competition Mode. ELECTROANAL 2017. [DOI: 10.1002/elan.201700022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Inga Morkvenaite-Vilkonciene
- Vilnius University; Faculty of Chemistry and Geosciences, Department of Physical Chemistry; Vilnius Lithuania
- Vilnius Gediminas Technical University; Department of Mechatronics and Robotics; Vilnius Lithuania
| | - Almira Ramanaviciene
- Vilnius University; Faculty of Chemistry and Geosciences, Department of Analytical and Environmental Chemistry; Vilnius Lithuania
| | - Povilas Genys
- Vilnius University; Faculty of Chemistry and Geosciences, Department of Physical Chemistry; Vilnius Lithuania
| | - Arunas Ramanavicius
- Vilnius University; Faculty of Chemistry and Geosciences, Department of Physical Chemistry; Vilnius Lithuania
- State Research Institute Center for Physical Sciences and Technology; Laboratory of BioNanoTechnology; Vilnius Lithuania
| |
Collapse
|
8
|
Ivanauskas F, Morkvenaite-Vilkonciene I, Astrauskas R, Ramanavicius A. Modelling of Scanning Electrochemical Microscopy at Redox Competition Mode Using Diffusion and Reaction Equations. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.179] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
9
|
Sciutto G, Zangheri M, Prati S, Guardigli M, Mirasoli M, Mazzeo R, Roda A. Immunochemical Micro Imaging Analyses for the Detection of Proteins in Artworks. Top Curr Chem (Cham) 2016; 374:32. [PMID: 27573272 DOI: 10.1007/s41061-016-0033-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 05/03/2016] [Indexed: 01/17/2023]
Abstract
The present review is aimed at reporting on the most advanced and recent applications of immunochemical imaging techniques for the localization of proteins within complex and multilayered paint stratigraphies. Indeed, a paint sample is usually constituted by the superimposition of different layers whose characterization is fundamental in the evaluation of the state of conservation and for addressing proper restoration interventions. Immunochemical methods, which are based on the high selectivity of antigen-antibody reactions, were proposed some years ago in the field of cultural heritage. In addition to enzyme-linked immunosorbent assays for protein identification, immunochemical imaging methods have also been explored in the last decades, thanks to the possibility to localize the target analytes, thus increasing the amount of information obtained and thereby reducing the number of samples and/or analyses needed for a comprehensive characterization of the sample. In this review, chemiluminescent, spectroscopic and electrochemical imaging detection methods are discussed to illustrate potentialities and limits of advanced immunochemical imaging systems for the analysis of paint cross-sections.
Collapse
Affiliation(s)
- Giorgia Sciutto
- Department of Chemistry "G. Ciamician", Microchemistry and Microscopy Art Diagnostic Laboratory (M2ADL), University of Bologna, Ravenna Campus, Via Guaccimanni 42, 48100, Ravenna, Italy.
| | - Martina Zangheri
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Silvia Prati
- Department of Chemistry "G. Ciamician", Microchemistry and Microscopy Art Diagnostic Laboratory (M2ADL), University of Bologna, Ravenna Campus, Via Guaccimanni 42, 48100, Ravenna, Italy
| | - Massimo Guardigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Mara Mirasoli
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Rocco Mazzeo
- Department of Chemistry "G. Ciamician", Microchemistry and Microscopy Art Diagnostic Laboratory (M2ADL), University of Bologna, Ravenna Campus, Via Guaccimanni 42, 48100, Ravenna, Italy
| | - Aldo Roda
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| |
Collapse
|
10
|
Holzinger A, Steinbach C, Kranz C. Scanning Electrochemical Microscopy (SECM): Fundamentals and Applications in Life Sciences. ELECTROCHEMICAL STRATEGIES IN DETECTION SCIENCE 2015. [DOI: 10.1039/9781782622529-00125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In recent years, scanning electrochemical microscopy (SECM) has made significant contributions to the life sciences. Innovative developments focusing on high-resolution imaging, developing novel operation modes, and combining SECM with complementary optical or scanning probe techniques renders SECM an attractive analytical approach. This chapter gives an introduction to the essential instrumentation and operation principles of SECM for studying biologically-relevant systems. Particular emphasis is given to applications aimed at imaging the activity of biochemical constituents such as enzymes, antibodies, and DNA, which play a pivotal role in biomedical diagnostics. Furthermore, the unique advantages of SECM and combined techniques for studying live cells is highlighted by discussion of selected examples.
Collapse
Affiliation(s)
- Angelika Holzinger
- Institute of Analytical and Bioanalytical Chemistry, University of Ulm 89069 Ulm Germany
| | - Charlotte Steinbach
- Institute of Analytical and Bioanalytical Chemistry, University of Ulm 89069 Ulm Germany
| | - Christine Kranz
- Institute of Analytical and Bioanalytical Chemistry, University of Ulm 89069 Ulm Germany
| |
Collapse
|
11
|
Yang Z, Cao Y, Li J, Wang J, Du D, Hu X, Lin Y. A new label-free strategy for a highly efficient chemiluminescence immunoassay. Chem Commun (Camb) 2015; 51:14443-6. [DOI: 10.1039/c5cc05337d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new label-free chemiluminescence (CL) immunoassay method which is based on the co-immobilization of a capture antibody and horseradish peroxidase (HRP) on the Au nanoparticle–chitosan composite interface is proposed for the cheap, fast and convenient detection of proteins.
Collapse
Affiliation(s)
- Zhanjun Yang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yue Cao
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Juan Li
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Juntao Wang
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Dan Du
- School of Mechanical and Materials Engineering
- Washington State University
- Washington 99164
- USA
| | - Xiaoya Hu
- College of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Yuehe Lin
- School of Mechanical and Materials Engineering
- Washington State University
- Washington 99164
- USA
| |
Collapse
|
12
|
Localization of proteins in paint cross-sections by scanning electrochemical microscopy as an alternative immunochemical detection technique. Anal Chim Acta 2014; 831:31-7. [DOI: 10.1016/j.aca.2014.04.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 04/26/2014] [Accepted: 04/30/2014] [Indexed: 11/18/2022]
|
13
|
Ino K, Kanno Y, Nishijo T, Komaki H, Yamada Y, Yoshida S, Takahashi Y, Shiku H, Matsue T. Densified Electrochemical Sensors Based on Local Redox Cycling between Vertically Separated Electrodes in Substrate Generation/Chip Collection and Extended Feedback Modes. Anal Chem 2014; 86:4016-23. [DOI: 10.1021/ac500435d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Kosuke Ino
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Yusuke Kanno
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Taku Nishijo
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Hirokazu Komaki
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Yuta Yamada
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Shinya Yoshida
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Yasufumi Takahashi
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Hitoshi Shiku
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| | - Tomokazu Matsue
- Graduate School of Environmental Studies and §WPI Advanced Institute
for Materials Research, Tohoku University, Sendai, Japan 980-8579
| |
Collapse
|
14
|
Conzuelo F, Stratmann L, Grützke S, Pingarrón JM, Schuhmann W. Detection and Quantification of Sulfonamide Antibiotic Residues in Milk Using Scanning Electrochemical Microscopy. ELECTROANAL 2014. [DOI: 10.1002/elan.201300577] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
Kumar V, Srivastava S, Umrao S, Kumar R, Nath G, Sumana G, Saxena PS, Srivastava A. Nanostructured palladium-reduced graphene oxide platform for high sensitive, label free detection of a cancer biomarker. RSC Adv 2014. [DOI: 10.1039/c3ra41986j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
16
|
HIRANO Y, YASUKAWA T, MASE Y, OYAMATSU D, SHIKU H, MIZUTANI F, MATSUE T. Improvement of Detectable Sensitivity for Enzyme Reaction by Scanning Electrochemical Microscopy with Distance Control System for Immunosensing. ELECTROCHEMISTRY 2012. [DOI: 10.5796/electrochemistry.80.30] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
17
|
Novo P, Prazeres DMF, Chu V, Conde JP. Microspot-based ELISA in microfluidics: chemiluminescence and colorimetry detection using integrated thin-film hydrogenated amorphous silicon photodiodes. LAB ON A CHIP 2011; 11:4063-71. [PMID: 22012414 DOI: 10.1039/c1lc20362b] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Microfluidic technology has the potential to decrease the time of analysis and the quantity of sample and reactants required in immunoassays, together with the potential of achieving high sensitivity, multiplexing, and portability. A lab-on-a-chip system was developed and optimized using optical and fluorescence microscopy. Primary antibodies are adsorbed onto the walls of a PDMS-based microchannel via microspotting. This probe antibody is then recognised using secondary FITC or HRP labelled antibodies responsible for providing fluorescence or chemiluminescent and colorimetric signals, respectively. The system incorporated a micron-sized thin-film hydrogenated amorphous silicon photodiode microfabricated on a glass substrate. The primary antibody spots in the PDMS-based microfluidic were precisely aligned with the photodiodes for the direct detection of the antibody-antigen molecular recognition reactions using chemiluminescence and colorimetry. The immunoassay takes ~30 min from assay to the integrated detection. The conditions for probe antibody microspotting and for the flow-through ELISA analysis in the microfluidic format with integrated detection were defined using antibody solutions with concentrations in the nM-μM range. Sequential colorimetric or chemiluminescence detection of specific antibody-antigen molecular recognition was quantitatively detected using the photodiode. Primary antibody surface densities down to 0.182 pmol cm(-2) were detected. Multiplex detection using different microspotted primary antibodies was demonstrated.
Collapse
Affiliation(s)
- Pedro Novo
- INESC Microsistemas e Nanotecnologias and IN-Institute of Nanoscience and Nanotechnology, Lisbon, Portugal
| | | | | | | |
Collapse
|
18
|
Anne A, Chovin A, Demaille C, Lafouresse M. High-Resolution Mapping of Redox-Immunomarked Proteins Using Electrochemical–Atomic Force Microscopy in Molecule Touching Mode. Anal Chem 2011; 83:7924-32. [DOI: 10.1021/ac201907v] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Agnès Anne
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| | - Arnaud Chovin
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| | - Christophe Demaille
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| | - Manon Lafouresse
- Laboratoire d’Electrochimie Moléculaire, UMR 7591 CNRS, Université Paris Diderot, Sorbonne Paris Cité, 15 rue Jean-Antoine de Baïf, F-75205 Paris Cedex 13, France
| |
Collapse
|
19
|
HIRANO Y, YASUKAWA T, SAWAYASHIKI Y, SHIKU H, MIZUTANI F, MATSUE T. Preparation of Immunosensors Using a Microfluidic Device with an Interdigitated Array Electrode Modified with Antibodies. ELECTROCHEMISTRY 2010. [DOI: 10.5796/electrochemistry.78.175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
20
|
Mureşan L, Nistor M, Gáspár S, Popescu IC, Csöregi E. Monitoring of glucose and glutamate using enzyme microstructures and scanning electrochemical microscopy. Bioelectrochemistry 2009; 76:81-6. [PMID: 19520620 DOI: 10.1016/j.bioelechem.2009.05.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2008] [Revised: 05/01/2009] [Accepted: 05/07/2009] [Indexed: 10/20/2022]
|
21
|
Takahashi Y, Miyamoto T, Shiku H, Asano R, Yasukawa T, Kumagai I, Matsue T. Electrochemical Detection of Epidermal Growth Factor Receptors on a Single Living Cell Surface by Scanning Electrochemical Microscopy. Anal Chem 2009; 81:2785-90. [DOI: 10.1021/ac900195m] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yasufumi Takahashi
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Takeshi Miyamoto
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Hitoshi Shiku
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Ryutaro Asano
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Tomoyuki Yasukawa
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Izumi Kumagai
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| | - Tomokazu Matsue
- Graduate School of Environmental Studies, Tohoku University, Aramaki Aoba 6-6-11-605, Sendai 980-8579, Japan, Graduate School of Engineering Studies, Tohoku University, Aramaki, Aoba 6-6-11-607, Sendai 980-8579, Japan, and Graduate School of Material Science, University of Hyogo, 3-2-1 Kouto, Kamigori-cho, Ako-gun, Hyogo 678-1297, Japan
| |
Collapse
|
22
|
Lee HJ, Yasukawa T, Shiku H, Matsue T. Rapid and separation-free sandwich immunosensing based on accumulation of microbeads by negative-dielectrophoresis. Biosens Bioelectron 2008; 24:1006-11. [PMID: 18815023 DOI: 10.1016/j.bios.2008.08.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Revised: 07/11/2008] [Accepted: 08/04/2008] [Indexed: 11/30/2022]
Abstract
We report here a rapid and separation-free immunoassay using a dielectrophoresis (DEP) device consisting of an interdigitated microarray (IDA) electrode and a polydimethylsiloxane (PDMS) substrate. On applying an AC voltage to the IDA in a negative-DEP (n-DEP) frequency region, goat anti-mouse immunoglobulin (anti-mouse IgG)-immobilized microbeads moved to the surface of the PDMS substrate placed above the IDA. The microbeads accumulated at designated areas of the PDMS surface that had been precoated with anti-mouse IgG. When the fluorescence microbeads bearing anti-mouse IgG were suspended in an analyte (mouse IgG) solution, the microbeads trapped the analyte to form immunocomplexes on microbeads. The microbeads reacted with mouse IgG accumulated and were captured at the designated areas of the PDMS surface via an antibody-antigen-antibody (sandwich) reaction. The captured microbeads were detected selectively by fluorescence measurements at the focused designated areas, regardless of the presence of uncaptured microbeads suspended in solution. Thus, the separation and washing-out steps usually required for conventional immunoassay are eliminated in the presented procedure. Since the formation of the sandwich structures was accelerated significantly by n-DEP, a period as short as 30s was sufficient to detect the immunoreaction at the surface. The fluorescence intensity of the captured microbeads at the designated areas increased with analyte concentration in the range 0.01-10ng/mL. The present procedure therefore yields a rapid, sensitive, and separation-free immunoassay in a simple device.
Collapse
Affiliation(s)
- Hyun Jung Lee
- Graduate School of Environmental Studies, Tohoku University, 6-6-11-604, Aramaki-Aoba, Aoba-Ku, Sendai 980-8579, Japan
| | | | | | | |
Collapse
|
23
|
Huang Y, Nie XM, Gan SL, Jiang JH, Shen GL, Yu RQ. Electrochemical immunosensor of platelet-derived growth factor with aptamer-primed polymerase amplification. Anal Biochem 2008; 382:16-22. [PMID: 18675245 DOI: 10.1016/j.ab.2008.07.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Revised: 07/07/2008] [Accepted: 07/09/2008] [Indexed: 11/18/2022]
Abstract
A new method for the determination of platelet-derived growth factor BB (PDGF-BB) was developed using an electrochemical immunosensor with an aptamer-primed, long-strand circular detection probe. Rabbit anti-human PDGF-B polyclonal antibody was immobilized on the electrode to serve as the capture antibody. The detection probe was synthesized via polymerase extension along a single-stranded circular plasmid DNA template with a primer headed by the anti-PDGF-B aptamer. In the presence of the analyte, the aptamer-primed circular probe was captured on the electrode via the formation of an antibody/PDGF-BB/aptamer sandwiched complex. The electroactivity indicator methylene blue was adsorbed on the electrode surface via the analyte-sandwiched complex with long-strand circular DNA, thus yielding a strong electrochemical signal for the quantification of PDGF-BB. This strategy allowed electrochemical detection with enormous signal amplification arising from the long-strand localized circular probe. The oxidation peak current of methylene blue in square wave voltammetric measurements showed a linear dependence on the concentration of PDGF-BB in the range from 50 to 500 ng mL(-1), with a detection limit as low as 18 pg mL(-1).
Collapse
Affiliation(s)
- Yong Huang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | | | | | | | | | | |
Collapse
|
24
|
|
25
|
Lu X, Wang Q, Liu X. Review: Recent applications of scanning electrochemical microscopy to the study of charge transfer kinetics. Anal Chim Acta 2007; 601:10-25. [PMID: 17904468 DOI: 10.1016/j.aca.2007.08.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2007] [Revised: 08/09/2007] [Accepted: 08/12/2007] [Indexed: 10/22/2022]
Abstract
Scanning electrochemical microscopy (SECM) has been proven to be a valuable technique for the quantitative investigation and surface analysis of a wide range of processes that occur at interfaces. In particular, there is a great deal of interest in studying the kinetics of charge transfer characteristics at the solid/liquid and liquid/liquid interface. This overview outlines recent advances and applications of SECM to the investigation of charge transfer reactions at the solid/liquid interface and liquid/liquid interface.
Collapse
Affiliation(s)
- Xiaoquan Lu
- College of Chemistry and Chemical Engineer, Northwest Normal University, Lanzhou, 730070, PR China
| | | | | |
Collapse
|