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Candia ML, Piccinini E, Azzaroni O, Marmisollé WA. Digitalization of Enzyme-Linked Immunosorbent Assay with Graphene Field-Effect Transistors (G-ELISA) for Portable Ferritin Determination. BIOSENSORS 2024; 14:394. [PMID: 39194623 DOI: 10.3390/bios14080394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 08/05/2024] [Accepted: 08/09/2024] [Indexed: 08/29/2024]
Abstract
Herein, we present a novel approach to quantify ferritin based on the integration of an Enzyme-Linked Immunosorbent Assay (ELISA) protocol on a Graphene Field-Effect Transistor (gFET) for bioelectronic immunosensing. The G-ELISA strategy takes advantage of the gFET inherent capability of detecting pH changes for the amplification of ferritin detection using urease as a reporter enzyme, which catalyzes the hydrolysis of urea generating a local pH increment. A portable field-effect transistor reader and electrolyte-gated gFET arrangement are employed, enabling their operation in aqueous conditions at low potentials, which is crucial for effective biological sample detection. The graphene surface is functionalized with monoclonal anti-ferritin antibodies, along with an antifouling agent, to enhance the assay specificity and sensitivity. Markedly, G-ELISA exhibits outstanding sensing performance, reaching a lower limit of detection (LOD) and higher sensitivity in ferritin quantification than unamplified gFETs. Additionally, they offer rapid detection, capable of measuring ferritin concentrations in approximately 50 min. Because of the capacity of transistor miniaturization, our innovative G-ELISA approach holds promise for the portable bioelectronic detection of multiple biomarkers using a small amount of the sample, which would be a great advancement in point-of-care testing.
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Affiliation(s)
- Melody L Candia
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), CONICET. 64 and 113, La Plata B1900, Argentina
| | - Esteban Piccinini
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), CONICET. 64 and 113, La Plata B1900, Argentina
| | - Omar Azzaroni
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), CONICET. 64 and 113, La Plata B1900, Argentina
| | - Waldemar A Marmisollé
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), CONICET. 64 and 113, La Plata B1900, Argentina
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Siciliano G, Alsadig A, Chiriacò MS, Turco A, Foscarini A, Ferrara F, Gigli G, Primiceri E. Beyond traditional biosensors: Recent advances in gold nanoparticles modified electrodes for biosensing applications. Talanta 2024; 268:125280. [PMID: 37862755 DOI: 10.1016/j.talanta.2023.125280] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/02/2023] [Accepted: 10/05/2023] [Indexed: 10/22/2023]
Abstract
Gold nanoparticles (AuNPs) have emerged as powerful tools in the construction of highly sensitive electrochemical biosensors. Their unique properties, such as the ability to serve as an effective platform for biomolecule immobilization and to facilitate electron transfer between the electrode surface and the immobilized molecules, make them a promising choice for biosensor applications. Utilizing AuNPs modified electrodes can lead to improved sensitivity and lower limits of detection compared to unmodified electrodes. This review provides a comprehensive overview of the recent advancements and applications of AuNPs-based electrochemical biosensors in the biomedical field. The synthesis methods of AuNPs, their key properties, and various strategies employed for electrode modification are discussed. Furthermore, this review highlights the remarkable applications of these nanostructure-integrated electrodes, including immunosensors, enzyme biosensors, and DNA biosensors.
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Affiliation(s)
- Giulia Siciliano
- CNR NANOTEC Institute of Nanotechnology, via Monteroni, 73100 Lecce, Italy
| | - Ahmed Alsadig
- CNR NANOTEC Institute of Nanotechnology, via Monteroni, 73100 Lecce, Italy
| | | | - Antonio Turco
- CNR NANOTEC Institute of Nanotechnology, via Monteroni, 73100 Lecce, Italy
| | - Alessia Foscarini
- CNR NANOTEC Institute of Nanotechnology, via Monteroni, 73100 Lecce, Italy
| | - Francesco Ferrara
- CNR NANOTEC Institute of Nanotechnology, via Monteroni, 73100 Lecce, Italy.
| | - Giuseppe Gigli
- CNR NANOTEC Institute of Nanotechnology, via Monteroni, 73100 Lecce, Italy
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Ali MA, Hu C, Yttri EA, Panat R. Recent Advances in 3D Printing of Biomedical Sensing Devices. ADVANCED FUNCTIONAL MATERIALS 2022; 32:2107671. [PMID: 36324737 PMCID: PMC9624470 DOI: 10.1002/adfm.202107671] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 05/03/2023]
Abstract
Additive manufacturing, also called 3D printing, is a rapidly evolving technique that allows for the fabrication of functional materials with complex architectures, controlled microstructures, and material combinations. This capability has influenced the field of biomedical sensing devices by enabling the trends of device miniaturization, customization, and elasticity (i.e., having mechanical properties that match with the biological tissue). In this paper, the current state-of-the-art knowledge of biomedical sensors with the unique and unusual properties enabled by 3D printing is reviewed. The review encompasses clinically important areas involving the quantification of biomarkers (neurotransmitters, metabolites, and proteins), soft and implantable sensors, microfluidic biosensors, and wearable haptic sensors. In addition, the rapid sensing of pathogens and pathogen biomarkers enabled by 3D printing, an area of significant interest considering the recent worldwide pandemic caused by the novel coronavirus, is also discussed. It is also described how 3D printing enables critical sensor advantages including lower limit-of-detection, sensitivity, greater sensing range, and the ability for point-of-care diagnostics. Further, manufacturing itself benefits from 3D printing via rapid prototyping, improved resolution, and lower cost. This review provides researchers in academia and industry a comprehensive summary of the novel possibilities opened by the progress in 3D printing technology for a variety of biomedical applications.
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Affiliation(s)
- Md Azahar Ali
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15238, USA
| | - Chunshan Hu
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15238, USA
| | - Eric A Yttri
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Rahul Panat
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA 15238, USA
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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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The electrochemical detection of prostate specific antigen on glassy carbon electrode modified with combinations of graphene quantum dots, cobalt phthalocyanine and an aptamer. J Inorg Biochem 2021; 221:111462. [PMID: 33992966 DOI: 10.1016/j.jinorgbio.2021.111462] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/07/2021] [Accepted: 04/08/2021] [Indexed: 01/04/2023]
Abstract
Herein, a novel aptasensor is developed for the electrochemical detection of prostate specific antigen (PSA) on electrode surfaces modified using various combinations of a Cobalt phthalocyanine (CoPc), an aptamer and graphene quantum dots (GQDs). Electrochemical impedance spectroscopy (EIS) as well as differential pulse voltammetry (DPV) are employed for the detection of PSA. In both analytical techniques, linear calibration curves were observed at a concentration range of 1.2-2.0 pM. The glassy carbon electrode where CoPc and GQDs are placed on the electrode when non-covalently linked followed by addition of the aptamer (GQDs-CoPc(ππ)-aptamer (sequential)) showed the best performance with a limit of detection (LoD) as low as 0.66 pM when using DPV. The detection limits were much lower than the dangerous levels reported for PSA in males tested for prostate cancer. This electrode showed selectivity for PSA in the presence of bovine serum albumin, glucose and L-cysteine. The aptasensor showed good stability, reproducibility and repeatability, deeming it a promising early detection device for prostate cancer.
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LSPR biosensing for the early-stage prostate cancer detection using hydrogen bonds between PSA and antibody: Molecular dynamic and experimental study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114736] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Sokolowska P, Janikiewicz J, Jastrzebska E, Brzozka Z, Dobrzyn A. Combinations of regenerative medicine and Lab-on-a-chip systems: New hope to restoring the proper function of pancreatic islets in diabetes. Biosens Bioelectron 2020; 167:112451. [DOI: 10.1016/j.bios.2020.112451] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/18/2020] [Accepted: 07/13/2020] [Indexed: 12/27/2022]
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Fattahi Z, Khosroushahi AY, Hasanzadeh M. Recent progress on developing of plasmon biosensing of tumor biomarkers: Efficient method towards early stage recognition of cancer. Biomed Pharmacother 2020; 132:110850. [PMID: 33068930 DOI: 10.1016/j.biopha.2020.110850] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/21/2020] [Accepted: 10/04/2020] [Indexed: 12/18/2022] Open
Abstract
Cancer is the second most extended disease with an improved death rate over the past several time. Due to the restrictions of cancer analysis methods, the patient's real survival rate is unknown. Therefore, early stage diagnosis of cancer is crucial for its strong detection. Bio-analysis based on biomarkers may help to overcome the problem Biosensors with high sensitivity and specificity, low-cost, high analysis speed and minimum limit of detection are practical alternatives for laboratory tests. Surface plasmon resonance (SPR) is reaching a maturity level sufficient for their application in detection and determination cancer biomarkers in clinical samples. This review discusses main concepts and performance characteristics of SPR biosensor. Mainly, it focuses on newly emerged enhanced SPR biosensors towards high-throughput and ultrasensitive screening of cancer biomarkers such as PSA, α-fetoprotein, CEA, CA125, CA 15-3, HER2, ctDNA, ALCAM, hCG, VEGF, TNF, Interleukin, IFN-γ, CD24, CD44, Ferritin, COLIV using labeling processes with focusing on the future application in biomedical research and clinical diagnosis. This article reviews current status of the field, showcasing a series of early successes in the application of SPR for clinical bioanalysis of cancer related biomolecules and detailing a series of considerations regarding sensing schemes, exposing issues with analysis in biofluids, while providing an outlook of the challenges currently associated with plasmonic materials, bioreceptor selection, microfluidics, and validation of a clinical bioassay for applying SPR biosensors to clinical samples. Research opportunities are proposed to further advance the field and transition SPR biosensors from research proof-of-concept stage to actual clinical usage.
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Affiliation(s)
- Zahra Fattahi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ahmad Yari Khosroushahi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Singh S, Singh PK, Umar A, Lohia P, Albargi H, Castañeda L, Dwivedi DK. 2D Nanomaterial-Based Surface Plasmon Resonance Sensors for Biosensing Applications. MICROMACHINES 2020; 11:E779. [PMID: 32824184 PMCID: PMC7463818 DOI: 10.3390/mi11080779] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/08/2020] [Accepted: 08/10/2020] [Indexed: 12/19/2022]
Abstract
The absorption and binding energy of material plays an important role with a large surface area and conductivity for the development of any sensing device. The newly grown 2D nanomaterials like black phosphorus transition metal dichalcogenides (TMDCs) or graphene have excellent properties for sensing devices' fabrication. This paper summarizes the progress in the area of the 2D nanomaterial-based surface plasmon resonance (SPR) sensor during last decade. The paper also focuses on the structure of Kretschmann configuration, the sensing principle of SPR, its characteristic parameters, application in various fields, and some important recent works related to SPR sensors have also been discussed, based on the present and future scope of this field. The present paper provides a platform for researchers to work in the field of 2D nanomaterial-based SPR sensors.
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Affiliation(s)
- Sachin Singh
- Amorphous Semiconductor Research Lab, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, India; (S.S.); (P.K.S.)
| | - Pravin Kumar Singh
- Amorphous Semiconductor Research Lab, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, India; (S.S.); (P.K.S.)
| | - Ahmad Umar
- Department of Chemistry, Faculty of Science and Arts, Najran University, Najran 11001, Saudi Arabia
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran 11001, Saudi Arabia;
| | - Pooja Lohia
- Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, India;
| | - Hasan Albargi
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran 11001, Saudi Arabia;
- Department of Physics, Faculty of Science and Arts, Najran University, Najran 11001, Saudi Arabia
| | - L. Castañeda
- Sección de Estudios de Posgrado e Investigación de la Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón S/N, Casco de Santo Tomas, Alcaldía Miguel Hidalgo, C.P. 11340 Cd. de México, Mexico;
| | - D. K. Dwivedi
- Amorphous Semiconductor Research Lab, Department of Physics and Material Science, Madan Mohan Malaviya University of Technology, Gorakhpur 273010, India; (S.S.); (P.K.S.)
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Negahdary M, Sattarahmady N, Heli H. Advances in prostate specific antigen biosensors-impact of nanotechnology. Clin Chim Acta 2020; 504:43-55. [PMID: 32004532 DOI: 10.1016/j.cca.2020.01.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/25/2020] [Accepted: 01/27/2020] [Indexed: 01/01/2023]
Abstract
Prostate cancer is one of the most dangerous and deadly cancers in elderly men. Early diagnosis using prostate-specific antigen (PSA) facilitates disease detection, management and treatment. Biosensors have recently been used as sensitive, selective, inexpensive and rapid diagnostic tools for PSA detection. In this review, a variety of PSA biosensors such as aptasensors, peptisensors and immunesensors are highlighted. These use aptamers, peptides and antibodies in the biorecognition element, respectively, and can detect PSA with very high sensitivity via electrochemical, electrochemiluminescence, fluorescence and surface-enhanced Raman spectroscopy. To improve the sensitivity of most of these PSA biosensors, different nanostructured materials have played a critical role.
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Affiliation(s)
- M Negahdary
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - N Sattarahmady
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - H Heli
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Priyadarshini E, Rawat K, Bohidar HB, Rajamani P. Dual-probe (colorimetric and fluorometric) detection of ferritin using antibody-modified gold@carbon dot nanoconjugates. Mikrochim Acta 2019; 186:687. [PMID: 31595370 DOI: 10.1007/s00604-019-3802-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 09/07/2019] [Indexed: 10/25/2022]
Abstract
A dual-mode assay is described for immunological determination of the anemia biomarker ferritin. It is based on the use of a gold@carbon dot (Au@CD) nanoconjugate as a colorimetric and fluorescent probe. Au@CD is hydrophilic, easily surface modified and stable in aqueous solution. The Au@CD have a red color with blue-green fluorescence and were modified with antibody against ferritin. This allows bi-modal detection of ferritin. Assays can be performed in phosphate buffer and were also analyzed in (Bovine Serum Albumin) BSA and (Fetal Bovine Serum) FBS. Detection is based on antigen-antibody interaction underlying the classical sandwich model. Response to ferritin can be detected by spectrophotometry (at 570 nm) or fluorescence (at excitation/emission maxima of 354/454 nm). Under optimal conditions, the assay has a linear response in the 1 to 120 ngmL-1 ferritin concentration range and detection limits of 20 ng (colorimetrically) and 64 ng (fluorometrically). Graphical abstract Schematic representation of the function of the designed nanoprobe. The Au@CD nanoconjugates are functionalized with ferritin antibody in the initial step which specifically interacts with ferritin molecules leading to aggregation and subsequent changes in the optical and fluorescence signals.
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Affiliation(s)
- Eepsita Priyadarshini
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Kamla Rawat
- Department of Chemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Himadri B Bohidar
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.,Special Centre for Nano Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Paulraj Rajamani
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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Camilo DE, Miyazaki CM, Shimizu FM, Ferreira M. Improving direct immunoassay response by layer-by-layer films of gold nanoparticles – Antibody conjugate towards label-free detection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:315-323. [DOI: 10.1016/j.msec.2019.04.055] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/04/2019] [Accepted: 04/18/2019] [Indexed: 01/04/2023]
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13
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Optical Biomarker-based Biosensors for Cancer/Infectious Disease Medical Diagnoses. Appl Immunohistochem Mol Morphol 2019; 27:278-286. [DOI: 10.1097/pai.0000000000000586] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Jia H, Yang T, Xu Q, Xu J, Lu L, Yu Y, Li P. Facile construction of poly (indole‑5‑carboxylic acid) @ poly (3, 4‑ethylenedioxythiophene) label-free immunosensing platform for sensitive detection of prostate specific antigen. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.03.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Sang S, Guo X, Liu R, Wang J, Guo J, Zhang Y, Yuan Z, Zhang W. A Novel Magnetoelastic Nanobiosensor for Highly Sensitive Detection of Atrazine. NANOSCALE RESEARCH LETTERS 2018; 13:414. [PMID: 30584651 PMCID: PMC6305259 DOI: 10.1186/s11671-018-2840-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 12/17/2018] [Indexed: 05/05/2023]
Abstract
Here, we firstly report a wireless magnetoelastic (ME) nanobiosensor, based on ME materials and gold nanoparticles (AuNPs), for highly sensitive detection of atrazine employing the competitive immunoassay. In response to a time-varying magnetic field, the ME material longitudinally vibrates at its resonance frequency which can be affected by its mass loading. The layer of AuNPs coating on the ME material contributes to its biocompatibility, stability, and sensitivity. The atrazine antibody was oriented immobilized on the AuNPs-coated ME material surface through protein A, improving the nanobiosensor's performance. Atomic force microscope (AFM) analysis proved that the immobilization of atrazine antibody was successful. Furthermore, to enhance the sensitivity, atrazine-albumin conjugate (Atr-BSA) was induced to compete with atrazine for binding with atrazine antibody, amplifying the signal response. The resonance frequency shift is inversely and linearly proportional to the logarithm of atrazine concentrations ranging from 1 ng/mL to 100 μg/mL, with the sensitivity of 3.43 Hz/μg mL-1 and the detection limit of 1 ng/mL, which is significantly lower than the standard established by US Environmental Protection Agency (EPA). The experimental results indicated that the ME nanobiosensor displayed strong specificity and stability toward atrazine. This study provides a new convenient method for rapid, selective, and highly sensitive detection of atrazine, which has implications for its applications in water quality monitoring and other environmental detection fields.
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Affiliation(s)
- Shengbo Sang
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
| | - Xing Guo
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
| | - Rong Liu
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
| | - Jingzhe Wang
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
| | - Jinyu Guo
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
| | - Yixia Zhang
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
- Department of Biomedical Engineering, Shanxi Key Laboratory of Material Strength & Structural Impact, College of Mechanics, Taiyuan University of Technology, Jinzhong, 030600 China
| | - Zhongyun Yuan
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
| | - Wendong Zhang
- MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education & College of Information Engineering, Taiyuan University of Technology, Jinzhong, 030600 China
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16
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Film bulk acoustic resonators (FBARs) as biosensors: A review. Biosens Bioelectron 2018; 116:1-15. [DOI: 10.1016/j.bios.2018.05.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/08/2018] [Accepted: 05/16/2018] [Indexed: 01/01/2023]
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17
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Zhang Y, Guo X, Fan L, Zhang Q, Sang S. A Novel Magnetoelastic Immunosensor for Ultrasensitively Detecting Carcinoembryonic Antigen. NANOSCALE RESEARCH LETTERS 2018; 13:258. [PMID: 30159687 PMCID: PMC6115316 DOI: 10.1186/s11671-018-2632-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/11/2018] [Indexed: 05/21/2023]
Abstract
A novel wireless immunosensor is developed for the ultra-sensitive detection of carcinoembryonic antigen. The optimum dimension of the microchips, as magnetoelastic sensitive units, was evaluated by simulation and experiments. The unique effects signal amplification and biocompatibility of gold particles contribute to the stability and sensitivity of the sensor. Furthermore, to enhance sensitivity, the working concentrations of antibody and BSA are selected to be 50 mg/mL and 0.1%, respectively. Atom force microscope imaging sheds light on the biological analysis. The Nano-magnetoelastic immunosensor exhibits a linear response to the logarithm of carcinoembryonic antigen (CEA) concentrations ranging from 0.1 to 100 ng/mL, with a detection limit of 2.5 pg/mL. The designed biosensor has merits of excellent stability and sensitivity towards CEA.
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Affiliation(s)
- Yixia Zhang
- Institute of Applied Mechanics and Biomedical Engineering & National Demonstration Center for Experimental Mechanics Education, College of Mechanics, Taiyuan University of Technology, Taiyuan, 030024 China
- Micro-Nano System Research Center & Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, College of Information and Computer, Taiyuan University of Technology, Taiyuan, 030024 China
| | - Xing Guo
- Micro-Nano System Research Center & Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, College of Information and Computer, Taiyuan University of Technology, Taiyuan, 030024 China
| | - Lu Fan
- Institute of Applied Mechanics and Biomedical Engineering & National Demonstration Center for Experimental Mechanics Education, College of Mechanics, Taiyuan University of Technology, Taiyuan, 030024 China
| | - Qiang Zhang
- Micro-Nano System Research Center & Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, College of Information and Computer, Taiyuan University of Technology, Taiyuan, 030024 China
| | - Shengbo Sang
- Micro-Nano System Research Center & Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, College of Information and Computer, Taiyuan University of Technology, Taiyuan, 030024 China
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Li X, Wei L, Pan L, Yi Z, Wang X, Ye Z, Xiao L, Li HW, Wang J. Homogeneous Immunosorbent Assay Based on Single-Particle Enumeration Using Upconversion Nanoparticles for the Sensitive Detection of Cancer Biomarkers. Anal Chem 2018; 90:4807-4814. [DOI: 10.1021/acs.analchem.8b00251] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Xue Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Lin Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Lanlan Pan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Zunyan Yi
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Xiao Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Hung-Wing Li
- Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, SAR China
| | - Jianfang Wang
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, SAR China
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19
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Azzopardi CL, Lacour V, Manceau JF, Barthès M, Bonnet D, Chollet F, Leblois T. A Fluidic Interface with High Flow Uniformity for Reusable Large Area Resonant Biosensors. MICROMACHINES 2017; 8:mi8100308. [PMID: 30400497 PMCID: PMC6190451 DOI: 10.3390/mi8100308] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/06/2017] [Accepted: 10/11/2017] [Indexed: 01/14/2023]
Abstract
Resonant biosensors are known for their high accuracy and high level of miniaturization. However, their fabrication costs prevent them from being used as disposable sensors and their effective commercial success will depend on their ability to be reused repeatedly. Accordingly, all the parts of the sensor in contact with the fluid need to tolerate the regenerative process which uses different chemicals (H3PO4, H2SO4 based baths) without degrading the characteristics of the sensor. In this paper, we propose a fluidic interface that can meet these requirements, and control the liquid flow uniformity at the surface of the vibrating area. We study different inlet and outlet channel configurations, estimating their performance using numerical simulations based on finite element method (FEM). The interfaces were fabricated using wet chemical etching on Si, which has all the desirable characteristics for a reusable biosensor circuit. Using a glass cover, we could observe the circulation of liquid near the active surface, and by using micro-particle image velocimetry (μPIV) on large surface area we could verify experimentally the effectiveness of the different designs and compare with simulation results.
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Affiliation(s)
- Charles-Louis Azzopardi
- FEMTO-ST Institute, Univ. Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, CEDEX, France.
| | - Vivien Lacour
- FEMTO-ST Institute, Univ. Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, CEDEX, France.
- Institute for Interdisciplinary Innovations in Technology (3IT), Faculty of Engineering, Université de Sherbrooke, 3000 Boulevard de l'Université, Sherbrooke, QC J1K OA5, Canada.
| | - Jean-François Manceau
- FEMTO-ST Institute, Univ. Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, CEDEX, France.
| | - Magali Barthès
- FEMTO-ST Institute, Univ. Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, CEDEX, France.
| | - Dimitri Bonnet
- FEMTO-ST Institute, Univ. Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, CEDEX, France.
| | - Franck Chollet
- FEMTO-ST Institute, Univ. Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, CEDEX, France.
| | - Thérèse Leblois
- FEMTO-ST Institute, Univ. Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, CEDEX, France.
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20
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Koukouvinos G, Petrou P, Goustouridis D, Misiakos K, Kakabakos S, Raptis I. Development and Bioanalytical Applications of a White Light Reflectance Spectroscopy Label-Free Sensing Platform. BIOSENSORS-BASEL 2017; 7:bios7040046. [PMID: 29027976 PMCID: PMC5746769 DOI: 10.3390/bios7040046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/09/2017] [Accepted: 10/11/2017] [Indexed: 12/15/2022]
Abstract
The development of a sensing platform based on white light reflectance spectroscopy (WLRS) is presented. The evolution of the system, from polymer film characterization and sensing of volatile organic compounds to biosensor for the label-free determination of either high (e.g., proteins) or low molecular weight analytes (e.g., pesticides), is described. At the same time, the passage from single to multi-analyte determinations, and from a laboratory prototype set-up to a compact device appropriate for on-site determination, is outlined. The improvements made on both the sensor and the optical set-up, and the concomitant advances in the analytical characteristics and the robustness of the assays performed with the different layouts, are also presented. Finally, the future perspectives of the system, aiming for the creation of a standalone instrument to be used by non-experts, will be discussed.
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Affiliation(s)
- Georgios Koukouvinos
- Immunoassay/Immunosensors Lab, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, NCSR "Demokritos", 15310 Aghia Paraskevi, Greece.
| | - Panagiota Petrou
- Immunoassay/Immunosensors Lab, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, NCSR "Demokritos", 15310 Aghia Paraskevi, Greece.
| | - Dimitrios Goustouridis
- ThetaMetrisis S.A., 12243 Egaleo, Greece.
- Department of Electronics Engineering TEI of Piraeus, 12244 Egaleo, Greece.
| | - Konstantinos Misiakos
- Optical sensors Lab, Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15310 Aghia Paraskevi, Greece.
| | - Sotirios Kakabakos
- Immunoassay/Immunosensors Lab, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, NCSR "Demokritos", 15310 Aghia Paraskevi, Greece.
| | - Ioannis Raptis
- ThetaMetrisis S.A., 12243 Egaleo, Greece.
- Optical sensors Lab, Institute of Nanoscience and Nanotechnology, NCSR "Demokritos", 15310 Aghia Paraskevi, Greece.
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21
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Porphyrinic metal-organic framework/macroporous carbon composites for electrocatalytic applications. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.176] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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22
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Malekzad H, Hasanzadeh M, Shadjou N, Jouyban A. Highly sensitive immunosensing of prostate specific antigen using poly cysteine caped by graphene quantum dots and gold nanoparticle: A novel signal amplification strategy. Int J Biol Macromol 2017; 105:522-532. [PMID: 28711617 DOI: 10.1016/j.ijbiomac.2017.07.069] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 07/06/2017] [Accepted: 07/11/2017] [Indexed: 01/24/2023]
Abstract
A mediator-free electrochemical immunosensor for quantitation of prostate specific antigen (PSA) based on dual signal amplification strategy was fabricated. In this work, PSA-antibody (anti-PSA) was immobilized onto a green and biocompatible nanocomposite containing poly l-cysteine (P-Cys) as conductive matrix and graphene quantum dots (GQDs)/gold nanoparticles (GNPs) as dual signal amplification elements. Therefore, a novel multilayer film based on P-Cys, GQDs, and GNPs was exploited to develop a highly sensitive amperometric immunosensor for detection of PSA. Fully electrochemical methodology was used to prepare a new transducer on a gold surface which provided a high surface area to immobilize a high amount of the anti-PSA. Importantly, GNPs prepared by soft template synthesized method lead to compact morphology was achieved. The surface morphology of electrode surface was characterized by high-resolution field emission scanning electron microscope (FE-SEM) and energy dispersive spectroscopy (EDX). Chemical compositions of the gold nanoparticles were analysed by an EDX. The immunosensor was employed for the detection of PSA in physiological pH. Under optimized condition the calibration curve for PSA concentration was linear up to 2-9pgmL-1 with lower limit of quantification of 1.8pgmL-1.
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Affiliation(s)
- Hediyeh Malekzad
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hasanzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Nasrin Shadjou
- Department of Nanochemistry, Nano Technology Research Center, Urmia University, Urmia 57154, Iran; Department of Nano Technology, Faculty of Science, Urmia University, Urmia 57154, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Kimia Idea Pardaz Azarbayjan (KIPA) Science Based Company, Tabriz University of Medical Sciences, Tabriz 51664, Iran
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23
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Liu W, Lei C, Zhang H, Wu X, Jia Q, He D, Yang B, Li Z, Hou Y, Lei L, Zhang X. CuS/RGO hybrid by one-pot hydrothermal method for efficient electrochemical sensing of hydrogen peroxide. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.04.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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24
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Vial S, Wenger J. Single-step homogeneous immunoassay for detecting prostate-specific antigen using dual-color light scattering of metal nanoparticles. Analyst 2017; 142:3484-3491. [DOI: 10.1039/c7an01066d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Conventional sandwich-type immunoassays are widely used for protein biomarker detection, yet their workflows are challenged by the need for multiple incubation steps separated by washing cycles.
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Affiliation(s)
- Stéphanie Vial
- Aix-Marseille Univ
- CNRS
- Centrale Marseille
- Institut Fresnel
- Marseille
| | - Jérôme Wenger
- Aix-Marseille Univ
- CNRS
- Centrale Marseille
- Institut Fresnel
- Marseille
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25
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Shakiba A, Zenasni O, D. Marquez M, Randall Lee T. Advanced drug delivery via self-assembled monolayer-coated nanoparticles. AIMS BIOENGINEERING 2017. [DOI: 10.3934/bioeng.2017.2.275] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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26
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Tezerjani MD, Benvidi A, Jahanbani S, Moshtaghioun SM, Mazloum-Ardakani M. A comparative investigation for prostate cancer detection using two electrochemical biosensors based on various nanomaterials and the linker of thioglycolic acid. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.08.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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27
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Rahi A, Sattarahmady N, Heli H. Label-free electrochemical aptasensing of the human prostate-specific antigen using gold nanospears. Talanta 2016; 156-157:218-224. [PMID: 27260456 DOI: 10.1016/j.talanta.2016.05.029] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/03/2016] [Accepted: 05/05/2016] [Indexed: 12/22/2022]
Abstract
Gold nanospears were electrodeposited with the assistance of arginine as a soft template and precise selection of experimental parameters. The nanospears were then employed as a transducer to immobilize an aptamer of prostate-specific antigen (PSA) and fabrication of a label-free electrochemical aptasensor. The aptasensor was employed for the detection of PSA with a linear concentration range of 0.125-200ngmL(-1) and a limit of detection of 50pgmL(-1). The aptasensor was successfully applied to detect PSA in blood serum samples of healthy and patient persons.
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Affiliation(s)
- A Rahi
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - N Sattarahmady
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Physics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - H Heli
- Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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28
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Deng H, Li J, Zhang Y, Pan H, Xu G. A new strategy for label-free electrochemical immunoassay based on "gate-effect" of β-cyclodextrin modified electrode. Anal Chim Acta 2016; 926:48-54. [PMID: 27216392 DOI: 10.1016/j.aca.2016.04.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 04/18/2016] [Accepted: 04/19/2016] [Indexed: 12/14/2022]
Abstract
A novel label-free electrochemical immunoassay was developed for prostate-specific antigen (PSA) detection via using β-cyclodextrin (β-CD) assembled layer created gates for the electron transfer of probe. To construct the sensor, a gold electrode was self-assembled with monoclonal anti-PSA antibody labeled 6-mercapto-β-cyclodextrin. Interspaces among β-CD molecules in the layer were automatically formed on gold electrode, which act as the channel of the electron transfer of [Fe(CN)6](3-/4-) probe. When PSA bind with anti-PSA, it can block these channels on the electrode surface due to their steric hindrance effect, resulting in the decrease in redox current of the probe. Through such a gate-controlled effect, ultra trace amount of PSA may make the currents change greatly after the immunoreaction, which enhanced the signal-to-noise ratio to achieve the amplification effect. By evaluating the logarithm of PSA concentrations, the immunosensor had a good linear response to the current changes with a detection limit of 0.3 pg/mL (S/N = 3) when PSA concentration ranged from 1.0 pg/mL to 1.0 ng/mL. The label-free immunosensor exhibited satisfactory performances in sensitivity, repeatability as well as specificity.
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Affiliation(s)
- Huan Deng
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Jianping Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China.
| | - Yun Zhang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Hongcheng Pan
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China
| | - Guobao Xu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, PR China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
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29
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Jang D, Na W, Kang M, Kim N, Shin S. Ultrasensitive Detection of Single-Walled Carbon Nanotubes Using Surface Plasmon Resonance. Anal Chem 2015; 88:968-73. [DOI: 10.1021/acs.analchem.5b03722] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Daeho Jang
- School
of Mechanical Engineering, ‡Department of Micro/Nano Systems, and §School of Biomedical
Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Wonhwi Na
- School
of Mechanical Engineering, ‡Department of Micro/Nano Systems, and §School of Biomedical
Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Minwook Kang
- School
of Mechanical Engineering, ‡Department of Micro/Nano Systems, and §School of Biomedical
Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Namjoon Kim
- School
of Mechanical Engineering, ‡Department of Micro/Nano Systems, and §School of Biomedical
Engineering, Korea University, Seoul 136-701, Republic of Korea
| | - Sehyun Shin
- School
of Mechanical Engineering, ‡Department of Micro/Nano Systems, and §School of Biomedical
Engineering, Korea University, Seoul 136-701, Republic of Korea
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30
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Nanoplasmonic biosensor: Detection and amplification of dual bio-signatures of circulating tumor DNA. Biosens Bioelectron 2015; 67:443-9. [DOI: 10.1016/j.bios.2014.09.003] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 08/19/2014] [Accepted: 09/01/2014] [Indexed: 02/07/2023]
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31
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Yan Z, Xiong P, Gan N, He J, Long N, Cao Y, Hu F, Li T. A novel sandwich-type noncompetitive immunoassay of diethylstilbestrol using β-cyclodextrin modified electrode and polymer–enzyme labels. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.10.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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32
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Xie S, Zhang J, Yuan Y, Chai Y, Yuan R. An electrochemical peptide cleavage-based biosensor for prostate specific antigen detection via host–guest interaction between ferrocene and β-cyclodextrin. Chem Commun (Camb) 2015; 51:3387-90. [DOI: 10.1039/c4cc10363g] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Here we have developed a “signal-on” peptide cleavage-based assay for sensitive and specific detection of prostate specific antigen (PSA) by coupling the host–guest interaction between ferrocene (Fc) and β-cyclodextrin (β-CD).
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Affiliation(s)
- Shunbi Xie
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Jin Zhang
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies (Chongqing University of Arts and Sciences)
- Chongqing 400715
- P. R. China
| | - Yali Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Yaqin Chai
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry
- Ministry of Education (Southwest University)
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
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33
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Surface plasmon resonance: advances of label-free approaches in the analysis of biological samples. Bioanalysis 2014; 6:3325-36. [DOI: 10.4155/bio.14.246] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Surface plasmon resonance sensors have made vast advancements in the sensing technology and the number of applications achievable. New developments in surface plasmon resonance sensors have gained considerable momentum promoted by the urgent needs of fast, reliable and label-free methods for detection and quantification of analytes in molecular biology, medicine and other life sciences. However, even if enormous improvements in the limits of detections have been achieved, this technology still faces important challenges to be translated to clinical practice or in-field measurements. This paper reviews the important recent advances of this technology for the label-free detection in real biological samples and we discussed the key challenges to be overcome to transit from prototypes to commercial biosensors.
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34
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Jang DH, Choi Y, Choi YS, Kim SM, Kwak H, Shin SH, Hong S. Sensitive and selective analysis of a wide concentration range of IGFBP7 using a surface plasmon resonance biosensor. Colloids Surf B Biointerfaces 2014; 123:887-91. [DOI: 10.1016/j.colsurfb.2014.10.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/15/2014] [Accepted: 10/19/2014] [Indexed: 10/24/2022]
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35
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Muthuraj B, Deshmukh R, Trivedi V, Iyer PK. Highly selective probe detects Cu2+ and endogenous NO gas in living cell. ACS APPLIED MATERIALS & INTERFACES 2014; 6:6562-9. [PMID: 24703409 DOI: 10.1021/am501476w] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The rapid and highly sensitive detection of extremely short-lived nitric oxide (NO) gas generated in vivo by a water-soluble fluorescein derivative is developed. This assay system comprises of indole-3-carboxaldehyde functionalized fluorescein hydrazone (FI) assay which displays a typically high absorption at 492 and 620 nm in the presence of Cu2+ and also shows FRET induced fluorescence turn-on exclusively with Cu2+. FI selectively detects Cu2+ in vivo and in vitro by the "turn-on" mechanism followed by fluorescence "turn-off" with NO gas generated by the lipopolysaccharide (LPS) action. The in vivo experiment performed in the cellular system indicates that FI loaded RAW264.7 cells showed bright fluorescence in the presence of Cu2+, while other metals did not influence the FI fluorescence. In addition, the fluorescence of FI-Cu2+ was efficiently quenched by NO generated in macrophages through LPS stimulation. FI demonstrates characteristic "turn-on" behavior in the presence of Cu2+ via spirolactom ring-opening, while other metals such as Na+, K+, Ca2+, Cr3+, Mn2+, Fe3+, Fe2+, Co2+, Ni2+, Zn2+, Cd2+, Hg2+, and Ag+ did not influence FI fluorescence even at very high concentration. Further, the FI-Cu2+ complex fluorescence was not quenched with any anions or amino acids but totally quenched by NO and the paramagnetic nature of Cu2+ ion converted into the diamagnetic nature when reduced to Cu1+. FI and the FI-Cu2+ complex are nontoxic to the cellular system and have high potential for biomedical applications.
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Affiliation(s)
- Balakrishnan Muthuraj
- Department of Chemistry, Indian Institute of Technology , Guwahati-781039, Assam, India
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36
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Truong PL, Ma X, Sim SJ. Resonant Rayleigh light scattering of single Au nanoparticles with different sizes and shapes. NANOSCALE 2014; 6:2307-2315. [PMID: 24413584 DOI: 10.1039/c3nr05211g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Scientific interest in nanotechnology is driven by the unique and novel properties of nanometer-sized metallic materials such as the strong interaction between the conductive electrons of the nanoparticles and the incident light, caused by localized surface plasmon resonances (LSPRs). In this article, we analysed the relationship of the Rayleigh scattering properties of a single Au nanoparticle with its size, shape, and local dielectric environment. We also provided a detailed study on the refractive index sensitivity of three types of differently shaped Au nanoparticles, which were nanospheres, oval-shaped nanoparticles and nanorods. This study helps one to differentiate the Rayleigh light scattering from individual nanoparticles of different sizes and/or shapes and precisely obtain quantitative data as well as the correlated optical spectra of single gold nanoparticles from the inherently inhomogeneous solution of nanoparticles. These results suggest that the shape, size and aspect ratio of Au nanoparticles are important structural factors in determining the resonant Rayleigh light scattering properties of a single Au nanoparticle such as its spectral peak position, scattering-cross-section and refractive index sensitivity, which gives a handle for the choice of gold nanoparticles for the design and fabrication of single nanosensors.
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Affiliation(s)
- Phuoc Long Truong
- School of Chemical Engineering, Sungkyunkwan University, Suwon, 440-746, Korea
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37
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Riedel T, Rodriguez-Emmenegger C, de los Santos Pereira A, Bědajánková A, Jinoch P, Boltovets PM, Brynda E. Diagnosis of Epstein-Barr virus infection in clinical serum samples by an SPR biosensor assay. Biosens Bioelectron 2013; 55:278-84. [PMID: 24389391 DOI: 10.1016/j.bios.2013.12.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/29/2013] [Accepted: 12/02/2013] [Indexed: 12/21/2022]
Abstract
Label-free affinity biosensors offer a promising platform for the development of a new generation of medical diagnostic technologies. Nevertheless, when such sensors are used in complex biological media, adsorption of non-targeted medium components prevents the specific detection of the analyte. In this work, we introduce for the first time a biosensor assay based on surface plasmon resonance (SPR) capable of diagnosing different stages of Epstein-Barr virus (EBV) infections in clinical serum samples. This was achieved by simultaneous detection of the antibodies against three different antigens present in the virus. To prevent the interference of the fouling from serum during the measurement, the SPR chips were coated by an antifouling layer of a polymer brush of poly[oligo(ethylene glycol) methacrylate] grown by surface-initiated atom transfer radical polymerization. The bioreceptors were then attached via hybridization of complementary oligonucleotides. This allowed the sensor surface to be regenerated after measurement by disrupting the complementary pairs above the oligonucleotides' melting temperature and attaching new bioreceptors. In this way, the same sensing surface could be used repeatedly. The procedure used in this work will serve as a prototype strategy for the development of label-free affinity biosensors for diagnostics in blood serum or plasma samples. This is the first example of detection of marker of a disease in clinical serum samples by an optical affinity biosensor.
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Affiliation(s)
- Tomáš Riedel
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic.
| | - Cesar Rodriguez-Emmenegger
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Andres de los Santos Pereira
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Anna Bědajánková
- Vidia s.r.o., Nad Safinou II, no. 365, Vestec, 252 42 Jesenice u Prahy, Czech Republic
| | - Pavel Jinoch
- Vidia s.r.o., Nad Safinou II, no. 365, Vestec, 252 42 Jesenice u Prahy, Czech Republic
| | - Praskovia M Boltovets
- V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, Nauki 41, 03028 Kyiv, Ukraine
| | - Eduard Brynda
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i., Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
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38
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Martinez-Perdiguero J, Retolaza A, Bujanda L, Merino S. Surface plasmon resonance immunoassay for the detection of the TNFα biomarker in human serum. Talanta 2013; 119:492-7. [PMID: 24401446 DOI: 10.1016/j.talanta.2013.11.063] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 11/20/2013] [Accepted: 11/23/2013] [Indexed: 11/15/2022]
Abstract
A simple method for the detection of TNF-alpha protein biomarker in human serum with great sensitivity has been developed using a surface plasmon resonance biosensor. Signal amplification based on a sandwich immunoassay including gold nanoparticles was used. Detection in serum proved to be challenging due to high undesirable non-specific binding to the sensor surface stemming from the matrix nature of the sample. After optimization of the assay parameters and, in the case of serum, of a sample dilution buffer to minimize the non-specific binding, very low limits of detection were achieved: 11.6 pg/mL (211 fM) and 54.4 pg/mL (989 fM) for spiked buffer and human serum respectively. The amplification steps with high affinity biotinylated antibodies and streptavidin-fuctionalized nanoparticles greatly enhanced the signal with the advantage of additional specificity. Due to its simplicity and sensitivity, the immunoassay has proved feasible to be used for detection of low concentration biomarkers in real samples.
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Affiliation(s)
| | - Aritz Retolaza
- CIC microGUNE, Arrasate-Mondragón, Spain; Micro-NanoFabrication Unit, IK4-Tekniker, Eibar, Spain
| | - Luis Bujanda
- Department of Gastroenterology, Hospital Donostia/Instituto Biodonostia, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad del País Vasco UPV/EHU, San Sebastián, Spain
| | - Santos Merino
- CIC microGUNE, Arrasate-Mondragón, Spain; Micro-NanoFabrication Unit, IK4-Tekniker, Eibar, Spain
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39
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Truong PL, Choi SP, Sim SJ. Amplification of resonant Rayleigh light scattering response using immunogold colloids for detection of lysozyme. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:3485-3492. [PMID: 23606501 DOI: 10.1002/smll.201202638] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 12/31/2012] [Indexed: 06/02/2023]
Abstract
A strategy for attomolar-level detection of small molecule-size proteins is reported based on Rayleigh light scattering spectroscopy of individual nanoplasmonic aptasensors by exploiting the outstanding characteristics of gold colloids to amplify the nontransparent resonant signal at ultralow analyte concentrations. The fabrication method utilizes thiol-mediated adsorption of a DNA aptamer on the immobilized Au nanoparticle surface, the interfacial binding characteristics of the aptamer with its target molecules, and the antibody-antigen interaction through plasmonic resonance coupling of the Au nanoparticles. Using lysozyme as a model analyte for disease detection, the detection limit of the aptasensor is ∼7 × 10(3) aM, corresponding to the LSPR λmax shift of ∼2.25 nm. Up to a 380% increase in the localized resonant λmax shift is demonstrated upon antibody binding to the analyte compared to the primary response during signal amplification using immunogold colloids. This enhancement leads to a limit of detection of ∼7 aM, which is an improvement of three orders of magnitude. The results demonstrate substantial promise for developing coupled plasmonic nanostructures for ultrasensitive detection of various biological and chemical analytes.
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Affiliation(s)
- Phuoc Long Truong
- School of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
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40
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Madhu S, Sharma DK, Basu SK, Jadhav S, Chowdhury A, Ravikanth M. Sensing Hg(II) in Vitro and in Vivo Using a Benzimidazole Substituted BODIPY. Inorg Chem 2013; 52:11136-45. [DOI: 10.1021/ic401365x] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Sheri Madhu
- Department of Chemistry and ‡Chemical
Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Dharmendar Kumar Sharma
- Department of Chemistry and ‡Chemical
Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Santanu Kumar Basu
- Department of Chemistry and ‡Chemical
Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Sameer Jadhav
- Department of Chemistry and ‡Chemical
Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Arindam Chowdhury
- Department of Chemistry and ‡Chemical
Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Mangalampalli Ravikanth
- Department of Chemistry and ‡Chemical
Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
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41
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Bai J, Jiang X. A Facile One-Pot Synthesis of Copper Sulfide-Decorated Reduced Graphene Oxide Composites for Enhanced Detecting of H2O2 in Biological Environments. Anal Chem 2013; 85:8095-101. [DOI: 10.1021/ac400659u] [Citation(s) in RCA: 239] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jing Bai
- State Key Lab of Electroanalytical
Chemistry, Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 Jilin, China
| | - Xiue Jiang
- State Key Lab of Electroanalytical
Chemistry, Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022 Jilin, China
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42
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Wang Y, Ye Z, Ying Y. Detection of immunoglobulin E using an aptamer based dot-blot assay. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s11434-013-5702-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Song MS, Choi SP, Lee J, Kwon YJ, Sim SJ. Real-time, sensitive, and specific detection of promoter-polymerase interactions in gene transcription using a nanoplasmonic sensor. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:1265-1269. [PMID: 23166096 DOI: 10.1002/adma.201203467] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 10/15/2012] [Indexed: 06/01/2023]
Affiliation(s)
- Min Sun Song
- Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
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44
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Li YJ, Ma MJ, Yin G, Kong Y, Zhu JJ. Phthalocyanine-Sensitized Graphene-CdS Nanocomposites: An Enhanced Photoelectrochemical Immunosensing Platform. Chemistry 2013; 19:4496-505. [DOI: 10.1002/chem.201203521] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Indexed: 11/05/2022]
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45
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Li W, Ge S, Wang S, Yan M, Ge L, Yu J. Highly sensitive chemiluminescence immunoassay on chitosan membrane modified paper platform using TiO2 nanoparticles/multiwalled carbon nanotubes as label. LUMINESCENCE 2013; 28:496-502. [PMID: 23355319 DOI: 10.1002/bio.2482] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Revised: 09/30/2012] [Accepted: 12/05/2012] [Indexed: 11/07/2022]
Abstract
A highly sensitive chemiluminescence (CL) immunoassay was incorporated into a low-cost microfluidic paper-based analytical device (μ-PAD) to fabricate a facile paper-based CL immunodevice (denoted as μ-PCLI). This μ-PCLI was constructed by covalently immobilizing capture antibody on a chitosan membrane modified μ-PADs, which was developed by simple wax printing methodology. TiO2 nanoparticles coated multiwalled carbon nanotubes (TiO2/MWCNTs) were synthesized as an amplification catalyst tag to label signal antibody (Ab2). After sandwich-type immunoreactions, the TiO2/MWCNTs were captured on the surface of μ-PADs to catalyze the luminol-p-iodophenol-H2O2 CL system, which produced an enhanced CL emission. Using prostate-specific antigen as a model analyte, the approach provided a good linear response range from 0.001 to 20 ng/mL with a low detection limit of 0.8 pg/mL under optimal conditions. This μ-PCLI showed good reproducibility, selectivity and stability. The assay results of prostate-specific antigen in clinical serum samples were in good agreement with that obtained by commercially used electrochemiluminescence methods at the Cancer Research Center of Shandong Tumor Hospital (Jinan, Shandong Province, China). This μ-PCLI could be very useful to realize highly sensitive, qualitative point-of-care testing in developing or developed countries.
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Affiliation(s)
- Weiping Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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46
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Shabani A, Tabrizian M. Design of a universal biointerface for sensitive, selective, and multiplex detection of biomarkers using surface plasmon resonance imaging. Analyst 2013; 138:6052-62. [DOI: 10.1039/c3an01374j] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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47
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Gold Nanoparticles-Coated SU-8 for Sensitive Fluorescence-Based Detections of DNA. Diagnostics (Basel) 2012; 2:72-82. [PMID: 26859400 PMCID: PMC4665555 DOI: 10.3390/diagnostics2040072] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 10/24/2012] [Accepted: 11/26/2012] [Indexed: 11/21/2022] Open
Abstract
SU-8 epoxy-based negative photoresist has been extensively employed as a structural material for fabrication of numerous biological microelectro-mechanical systems (Bio-MEMS) or lab-on-a-chip (LOC) devices. However, SU-8 has a high autofluorescence level that limits sensitivity of microdevices that use fluorescence as the predominant detection workhorse. Here, we show that deposition of a thin gold nanoparticles layer onto the SU-8 surface significantly reduces the autofluorescence of the coated SU-8 surface by as much as 81% compared to bare SU-8. Furthermore, DNA probes can easily be immobilized on the Au surface with high thermal stability. These improvements enabled sensitive DNA detection by simple DNA hybridization down to 1 nM (a two orders of magnitude improvement) or by solid-phase PCR with sub-picomolar sensitivity. The approach is simple and easy to perform, making it suitable for various Bio-MEMs and LOC devices that use SU-8 as a structural material.
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48
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Gnedenko OV, Mezentsev YV, Molnar AA, Lisitsa AV, Ivanov AS, Archakov AI. Highly sensitive detection of human cardiac myoglobin using a reverse sandwich immunoassay with a gold nanoparticle-enhanced surface plasmon resonance biosensor. Anal Chim Acta 2012; 759:105-9. [PMID: 23260683 DOI: 10.1016/j.aca.2012.10.053] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 10/03/2012] [Accepted: 10/28/2012] [Indexed: 10/27/2022]
Abstract
A highly sensitive reverse sandwich immunoassay for the detection of human cardiac myoglobin (cMb) in serum was designed utilizing a gold nanoparticle (AuNP)-enhanced surface plasmon resonance (SPR) biosensor. First, a monoclonal anti-cMb antibody (Mab1) was covalently immobilized on the sensor surface. AuNPs were covalently conjugated to the second monoclonal anti-cMb antibody (Mab2) to form an immuno-gold reagent (Mab2-AuNP). The reverse sandwich immunoassay consists of two steps: (1) mixing the serum sample with Mab2-AuNP and incubation for the formation of cMb/Mab2-AuNP complexes and (2) sample injection over the sensor surface and evaluation of the Mab1/cMb/Mab2-AuNP complex formation, with the subsequent calculation of the cMb concentration in the serum. The biosensor signal was amplified approximately 30-fold compared with the direct reaction of cMb with Mab1 on the sensor surface. The limit of detection of cMb in a human blood serum sample was found to be as low as 10 pM (approx. 0.18 ng mL(-1)), and the inter-assay coefficient of variation was less than 3%. Thus, the developed SPR-based reverse sandwich immunoassay has a sensitivity that is sufficient to measure cMb across a wide range of normal and pathological concentrations, allowing an adequate estimation of the disease severity and the monitoring of treatment.
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Affiliation(s)
- Oksana V Gnedenko
- IBMC RAMS, Pogodinskaya Street, 10, 119121 Moscow, Russian Federation.
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49
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Kyprianou D, Chianella I, Guerreiro A, Piletska EV, Piletsky SA. Development of optical immunosensors for detection of proteins in serum. Talanta 2012. [PMID: 23200386 DOI: 10.1016/j.talanta.2012.10.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The detection of proteins in biological samples such as blood, serum or plasma by biosensors is very challenging due to the complex nature of the matrix, which contains a high level of many interfering compounds. Here we show the application of a novel polymeric immobilisation matrix that helps in the detection of specific protein analytes in biological samples by surface plasmon resonance (SPR) immunosensors. This polymer matrix contains thioacetal functional groups included in the network, and these groups do not require any further activation in order to react with proteins, making it attractive for sensor fabrication. The protein prostate specific antigen (PSA) was selected as a model target analyte. A sandwich format with two primary antibodies recognising different parts (epitopes) of the analyte was used for the detection of PSA in serum. The efficiency of the reduction of non-specific binding achieved with novel polymer was compared with those of other techniques such as coating of sensor surface with polyethylene glycol (PEG), use of charged hydrophilic aspartic acid and surfactants such as Tween20. The detection limit of the polymer based immunosensor was 0.1 ng ml(-1) for free form PSA (f-PSA) in buffer and 5 ng ml(-1) in 20% serum. This is an improvement compared with similar devices reported on literature, indicating the potential of the immunosensor developed here for the analysis of real samples.
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Affiliation(s)
- Dimitris Kyprianou
- Cranfield Health, Cranfield University, Vincent Building, College Road, Cranfield, Bedfordshire MK43 0AL, UK
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50
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Jeong HH, Erdene N, Park JH, Jeong DH, Lee HY, Lee SK. Real-time label-free immunoassay of interferon-gamma and prostate-specific antigen using a Fiber-Optic Localized Surface Plasmon Resonance sensor. Biosens Bioelectron 2012; 39:346-51. [PMID: 22951530 DOI: 10.1016/j.bios.2012.08.013] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 07/26/2012] [Accepted: 08/07/2012] [Indexed: 10/28/2022]
Abstract
A Fiber-Optic Localized Surface Plasmon Resonance (FO LSPR) sensor was fabricated using spherical gold nanoparticles (Au NPs) on a flattened end-face of the optical fiber. The Au NPs were easily synthesized by the Turkevich method and were immobilized on the end-face of the optical fiber by using a self-assembled monolayer (SAM). In order to examine the possibility of its application as a biosensor for label-free immunoassays, the fabricated FO LSPR sensor was used for the detection of the antibody-antigen reaction of interferon-gamma (IFN-γ) and the limit of detection (LOD) was approximately 2pg/ml. Herein, The antibodies and bovine serum albumins (BSAs) were immobilized on the Au NPs by physisorption. Also, the FO LSPR sensor was used for the detection of a prostate-specific antigen (PSA) and the LOD was 1pg/ml below. The fabricated FO LSPR sensor can be used for real-time label-free immunoassay having fast detection time, high resolution and sensitivity. In addition, the proposed sensor platform has the advantages of low cost, simple optical setup, remote sensing, simple fabrication, real-time detection, low sample volume, and potential application to in-vivo detection systems.
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Affiliation(s)
- Hyeon-Ho Jeong
- Department of Nuclear Medicine, SNU College of Medicine, Institute of Radiation Medicine, SNUMRC, 28 Yongon-Dong, Chongno-Gu, Seoul 110-799, Republic of Korea.
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