1
|
Zhang Y, Liu Y, Lu Y, Gong S, Haick H, Cheng W, Wang Y. Tailor-Made Gold Nanomaterials for Applications in Soft Bioelectronics and Optoelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405046. [PMID: 39022844 DOI: 10.1002/adma.202405046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/02/2024] [Indexed: 07/20/2024]
Abstract
In modern nanoscience and nanotechnology, gold nanomaterials are indispensable building blocks that have demonstrated a plethora of applications in catalysis, biology, bioelectronics, and optoelectronics. Gold nanomaterials possess many appealing material properties, such as facile control over their size/shape and surface functionality, intrinsic chemical inertness yet with high biocompatibility, adjustable localized surface plasmon resonances, tunable conductivity, wide electrochemical window, etc. Such material attributes have been recently utilized for designing and fabricating soft bioelectronics and optoelectronics. This motivates to give a comprehensive overview of this burgeoning field. The discussion of representative tailor-made gold nanomaterials, including gold nanocrystals, ultrathin gold nanowires, vertically aligned gold nanowires, hard template-assisted gold nanowires/gold nanotubes, bimetallic/trimetallic gold nanowires, gold nanomeshes, and gold nanosheets, is begun. This is followed by the description of various fabrication methodologies for state-of-the-art applications such as strain sensors, pressure sensors, electrochemical sensors, electrophysiological devices, energy-storage devices, energy-harvesting devices, optoelectronics, and others. Finally, the remaining challenges and opportunities are discussed.
Collapse
Affiliation(s)
- Yujie Zhang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yi Liu
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yuerui Lu
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shu Gong
- School of Materials Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Hossam Haick
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Wenlong Cheng
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Yan Wang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- Key Laboratory of Science and Engineering for Health and Medicine of Guangdong Higher Education Institutes, Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong, 515063, China
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
| |
Collapse
|
2
|
Chauhan N, Pareek S, Rosario W, Rawal R, Jain U. An insight into the state of nanotechnology-based electrochemical biosensors for PCOS detection. Anal Biochem 2024; 687:115412. [PMID: 38040173 DOI: 10.1016/j.ab.2023.115412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/25/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders affecting many women of reproductive age all over the world. PCOS is associated with the onset of enduring health complications, notably diabetes and cardiovascular diseases. Furthermore, PCOS escalates the propensity for conditions such as obesity, insulin resistance, and dyslipidemia, which can potentially culminate in life-threatening scenarios. A pervasive predicament surrounding PCOS pertains to its underdiagnosis due to discrepancies in diagnostic criteria and the intricacy of available testing methodologies. Consequently, many women encounter substantial delays in diagnosis with traditional diagnostic approaches. Prompt identification is imperative, as any delay can precipitate severe consequences. The conventional techniques employed for PCOS detection typically suffer from suboptimal accuracy, protracted assay times, and inherent limitations, thereby constraining their widespread applicability and accessibility. In response to these challenges, various electrochemical methods leveraging nanotechnology have been documented. In this concise review, we endeavor to delineate the deficiencies associated with established conventional methodologies while accentuating the distinctive attributes and benefits inherent to contemporary biosensors. We place particular emphasis on elucidating the pivotal advancements and recent breakthroughs in the realm of nanotechnology-facilitated biosensors for the detection of PCOS.
Collapse
Affiliation(s)
- Nidhi Chauhan
- School of Health Sciences and Technology, UPES, Dehradun, 248007, Uttarakhand, India.
| | - Sakshi Pareek
- Amity Institute of Nanotechnology (AINT), Amity University Uttar Pradesh (AUUP), Sector-125, Noida, 201313, India
| | - Warren Rosario
- School of Engineering, UPES, Dehradun, 248007, Uttarakhand, India
| | - Rachna Rawal
- Department of Physics & Astrophysics, University of Delhi, Delhi, 110007, India
| | - Utkarsh Jain
- School of Health Sciences and Technology, UPES, Dehradun, 248007, Uttarakhand, India
| |
Collapse
|
3
|
Høj PH, Møller-Sørensen J, Wissing AL, Alatraktchi FA. Electrochemical biosensors for monitoring of selected pregnancy hormones during the first trimester: A systematic review. Talanta 2023; 258:124396. [PMID: 36870154 DOI: 10.1016/j.talanta.2023.124396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 02/27/2023]
Abstract
The hormones human chorionic gonadotropin, progesterone, estrogen and four of its metabolites (estradiol, estrone, estriol, estetrol), as well as relaxin play an essential role in the development of the fetus during the first trimester. Imbalances in these hormones during the first trimester have been directly linked to miscarriages. However, frequent monitoring of the hormones is limited by the current conventional centralized analytical tools that do not allow a rapid response time. Electrochemical sensing is considered an ideal tool to detect hormones owing to its advantages such as quick response, user-friendliness, low economic costs, and possibility of use in point-of-care settings. Electrochemical detection of pregnancy hormones is an emerging field that has been demonstrated primarily at research level. Thus, it is timely with a comprehensive overview of the characteristics of the reported detection techniques. This is the first extensive review focusing on the advances related to electrochemical detection of hormones linked to the first trimester of pregnancy. Additionally, this review offers insights into the main challenges that must be addressed imminently to ensure progress from research to clinical applications.
Collapse
Affiliation(s)
- Pernille Hagen Høj
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Jon Møller-Sørensen
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | | | | |
Collapse
|
4
|
Liu YL, Zhu J, Weng GJ, Li JJ, Zhao JW. Theoretical simulation of nonlinear regulation of wall thickness dependent longitudinal surface plasmon in pentagonal gold nanotubes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 273:121037. [PMID: 35189490 DOI: 10.1016/j.saa.2022.121037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 02/07/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
In this paper, the longitudinal plasmon mode optical properties and localized electric field distribution of a single pentagonal gold nanotube are investigated for the first time by the discrete dipole approximation. It is found that pentagonal gold nanotube has stronger electric field distribution compared with circular gold nanotubes when the incident wavelength is located at the plasmon resonance peak. Additionally, we observed that the longitudinal plasmon resonance peak can blue shift nonlinearly with increasing wall thickness, but red shifts linearly with the increase of the length of the pentagonal gold nanotube. The localized electric field analysis reveals that the longitudinal plasmon peak of the pentagonal gold nanotube originates from the dipole resonance mode. The local electric field intensity is controlled by the wall thickness and length. Notably, the effect of wall thickness on the longitudinal plasmon resonance and electric field enhancement can be attributed to the change of the plasmon coupling position and intensity. This work has enriched the theoretical research of pentagonal gold nanotubes and provided ideas for the preparation of high sensitivity nanoprobes biosensors.
Collapse
Affiliation(s)
- Yan-Ling Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| |
Collapse
|
5
|
Liu YL, Zhu J, Weng GJ, Li JJ, Zhao JW. Gold nanotubes: synthesis, properties and biomedical applications. Mikrochim Acta 2020; 187:612. [PMID: 33064202 DOI: 10.1007/s00604-020-04460-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 07/16/2020] [Indexed: 11/25/2022]
Abstract
This review (with 106 references) summarizes the latest progress in the synthesis, properties and biomedical applications of gold nanotubes (AuNTs). Following an introduction into the field, a first large section covers two popular AuNTs synthesis methods. The hard template method introduces anodic alumina oxide template (AAO) and track-etched membranes (TeMs), while the sacrificial template method based on galvanic replacement introduces bimetallic, trimetallic AuNTs and AuNT-semiconductor hybrid materials. Then, the factors affecting the morphology of AuNTs are discussed. The next section covers their unique surface plasmon resonance (SPR), surface-enhanced Raman scattering (SERS) and their catalytic properties. This is followed by overviews on the applications of AuNTs in biosensors, protein transportation, photothermal therapy and imaging. Several tables are presented that give an overview on the wealth of synthetic methods, morphology factors and biological application. A concluding section summarizes the current status, addresses current challenges and gives an outlook on potential applications of AuNTs in biochemical detection and drug delivery.Graphical abstract.
Collapse
Affiliation(s)
- Yan-Ling Liu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China.
| |
Collapse
|
6
|
Kalay S, Stetsyshyn Y, Donchak V, Harhay K, Lishchynskyi O, Ohar H, Panchenko Y, Voronov S, Çulha M. pH-Controlled fluorescence switching in water-dispersed polymer brushes grafted to modified boron nitride nanotubes for cellular imaging. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:2428-2439. [PMID: 31921521 PMCID: PMC6941444 DOI: 10.3762/bjnano.10.233] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/07/2019] [Indexed: 05/27/2023]
Abstract
pH-Switchable, fluorescent, hybrid, water-dispersible nanomaterials based on boron nitride nanotubes (BNNTs) and grafted copolymer brushes (poly(acrylic acid-co-fluorescein acrylate) - P(AA-co-FA)) were successfully fabricated in a two-step process. The functionalization of BNNTs was confirmed by spectroscopic, gravimetric and imaging techniques. In contrast to "pure" BNNTs, P(AA-co-FA)-functionalized BNNTs demonstrate intense green fluorescence emission at 520 nm. Under neutral or alkaline pH values, P(AA-co-FA)-functionalized BNNTs are highly emissive in contrast to acidic pH conditions where the fluorescent intensity is absent or low. No increase in the absorption was observed when the suspension pH was increased from 7 to 10. The functionalized BNNTs are easily taken up by human normal prostate epithelium (PNT1A) and human prostate cancer cell lines (DU145) and are suitable for further evaluation in cellular imaging applications.
Collapse
Affiliation(s)
- Saban Kalay
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| | - Yurij Stetsyshyn
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Volodymyr Donchak
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Khrystyna Harhay
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Ostap Lishchynskyi
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Halyna Ohar
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Yuriy Panchenko
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Stanislav Voronov
- Lviv Polytechnic National University, 12 S. Bandery, 79013 Lviv, Ukraine
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, 34755 Istanbul, Turkey
| |
Collapse
|
7
|
Dąbrowski M, Zimińska A, Kalecki J, Cieplak M, Lisowski W, Maksym R, Shao S, D'Souza F, Kuhn A, Sharma PS. Facile Fabrication of Surface-Imprinted Macroporous Films for Chemosensing of Human Chorionic Gonadotropin Hormone. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9265-9276. [PMID: 30714713 DOI: 10.1021/acsami.8b17951] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We present an improved approach for the preparation of highly selective and homogeneous molecular cavities in molecularly imprinted polymers (MIPs) via the combination of surface imprinting and semi-covalent imprinting. Toward that, first, a colloidal crystal mold was prepared via the Langmuir-Blodgett (LB) technique. Then, human chorionic gonadotropin (hCG) template protein was immobilized on the colloidal crystal mold. Later, hCG derivatization with electroactive functional monomers via amide chemistry was performed. In a final step, optimized potentiostatic polymerization of 2,3'-bithiophene enabled depositing an MIP film as the macroporous structure. This synergistic strategy resulted in the formation of molecularly imprinted cavities exclusively on the internal surface of the macropores, which were accessible after dissolution of silica molds. The recognition of hCG by the macroporous MIP film was transduced with the help of electric transducers, namely, extended-gate field-effect transistors (EG-FET) and capacitive impedimetry (CI). These readout strategies offered the ability to create chemosensors for the label-free determination of the hCG hormone. Other than the simple confirmation of pregnancy, hCG assay is a common tool for the diagnosis and follow-up of ectopic pregnancy or trophoblast tumors. Concentration measurements with these EG-FET and CI-based devices allowed real-time measurements of hCG in the range of 0.8-50 and 0.17-2.0 fM, respectively, in 10 mM carbonate buffer (pH = 10). Moreover, the selectivity of chemosensors with respect to protein interferences was very high.
Collapse
Affiliation(s)
- Marcin Dąbrowski
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Agnieszka Zimińska
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
- Department of Biomaterials Chemistry, Faculty of Pharmacy with Laboratory Medicine Division , Medical University of Warsaw , Banacha 1 , 02-097 Warsaw , Poland
| | - Jakub Kalecki
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Maciej Cieplak
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Wojciech Lisowski
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Radosław Maksym
- Department of Reproductive Health, Center of Postgraduate Medical Education , St. Sophia Hospital , Zelazna 90 , 01-004 Warsaw , Poland
| | - Shuai Shao
- Department of Chemistry , University of North Texas , 1155 Union Circle No. 305070 , Denton , Texas 76203-5017 , United States
| | - Francis D'Souza
- Department of Chemistry , University of North Texas , 1155 Union Circle No. 305070 , Denton , Texas 76203-5017 , United States
| | - Alexander Kuhn
- University of Bordeaux, CNRS UMR 5255, Bordeaux INP, ENSCBP , 16 Avenue Pey Berland , 33607 Pessac , France
| | - Piyush S Sharma
- Institute of Physical Chemistry , Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| |
Collapse
|
8
|
Stability of Halloysite, Imogolite, and Boron Nitride Nanotubes in Solvent Media. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8071068] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
9
|
Abstract
Human chorionic gonadotropin (HCG) is a glycoprotein secreted by placental trophoblast cells in pregnancy. HCG is a heterodimer composed of two different α- and β-subunits, with the latter being unique to HCG. As well as being the most important diagnostic markers for pregnancy, HCG is also a tumor marker, therefore, quantitative detection of HCG is of great value. Numerous advanced technologies have been developed for HCG concentration detection including electrochemical immunoassay, chemiluminescent immunoassay, fluorescence immunoassay, resonance scattering spectrometry, atomic emission spectrometry, radioimmunoassay, MS and so on. Some have pursued simple and easy operation, while others have emphasized on accuracy and applications in clinical medicine. This review provides a comprehensive summary of various methods of detecting HCG.
Collapse
|
10
|
Wen G, Liang X, Liu Q, Liang A, Jiang Z. A novel nanocatalytic SERS detection of trace human chorionic gonadotropin using labeled-free Vitoria blue 4R as molecular probe. Biosens Bioelectron 2016; 85:450-456. [DOI: 10.1016/j.bios.2016.05.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 04/26/2016] [Accepted: 05/04/2016] [Indexed: 12/27/2022]
|
11
|
Direct electrodeposition of highly ordered gold nanotube arrays for use in non-enzymatic amperometric sensing of glucose. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1835-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
12
|
Zhao D, Yu Y, Xu C. A sensitive electrochemical immunosensor for the detection of human chorionic gonadotropin based on a hierarchical nanoporous AuAg alloy. RSC Adv 2016. [DOI: 10.1039/c5ra24300a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A sensitive immunosensor for hCG detection is designed based on assembling the antibody on graphene sheets and ionic liquid composite film. The HNP-AuAg alloy is used as hCG antibody carrier for the preparation of a highly sensitive immunosensor.
Collapse
Affiliation(s)
- Dianyun Zhao
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| | - Yang Yu
- Shandong Product Quality Inspection Research Institute
- Jinan
- China
| | - Caixia Xu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan
- China
| |
Collapse
|
13
|
Roushani M, Valipour A. Voltammetric immunosensor for human chorionic gonadotropin using a glassy carbon electrode modified with silver nanoparticles and a nanocomposite composed of graphene, chitosan and ionic liquid, and using riboflavin as a redox probe. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1731-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
14
|
A Point-of-Care Immunosensor for Human Chorionic Gonadotropin in Clinical Urine Samples Using a Cuneated Polysilicon Nanogap Lab-on-Chip. PLoS One 2015; 10:e0137891. [PMID: 26368287 PMCID: PMC4569379 DOI: 10.1371/journal.pone.0137891] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 08/24/2015] [Indexed: 01/03/2023] Open
Abstract
Human chorionic gonadotropin (hCG), a glycoprotein hormone secreted from the placenta, is a key molecule that indicates pregnancy. Here, we have designed a cost-effective, label-free, in situ point-of-care (POC) immunosensor to estimate hCG using a cuneated 25 nm polysilicon nanogap electrode. A tiny chip with the dimensions of 20.5 × 12.5 mm was fabricated using conventional lithography and size expansion techniques. Furthermore, the sensing surface was functionalized by (3-aminopropyl)triethoxysilane and quantitatively measured the variations in hCG levels from clinically obtained human urine samples. The dielectric properties of the present sensor are shown with a capacitance above 40 nF for samples from pregnant women; it was lower with samples from non-pregnant women. Furthermore, it has been proven that our sensor has a wide linear range of detection, as a sensitivity of 835.88 μA mIU-1 ml-2 cm-2 was attained, and the detection limit was 0.28 mIU/ml (27.78 pg/ml). The dissociation constant Kd of the specific antigen binding to the anti-hCG was calculated as 2.23 ± 0.66 mIU, and the maximum number of binding sites per antigen was Bmax = 22.54 ± 1.46 mIU. The sensing system shown here, with a narrow nanogap, is suitable for high-throughput POC diagnosis, and a single injection can obtain triplicate data or parallel analyses of different targets.
Collapse
|
15
|
Bahadır EB, Sezgintürk MK. Electrochemical biosensors for hormone analyses. Biosens Bioelectron 2015; 68:62-71. [DOI: 10.1016/j.bios.2014.12.054] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 12/20/2014] [Accepted: 12/22/2014] [Indexed: 11/26/2022]
|
16
|
Ma L, Wen G, Ye L, Lu Z, Luo Y, Liang A, Jiang Z. SERS quantitative detection of trace human chorionic gonadotropin using a label-free Victoria blue B as probe in the aggregated immunonanogold sol substrate. LUMINESCENCE 2014; 30:790-7. [PMID: 25428635 DOI: 10.1002/bio.2821] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/09/2014] [Accepted: 10/22/2014] [Indexed: 11/09/2022]
Abstract
Nanogold particles (NG) were modified by anti-rabbit antibody (RAb) against human chorionic gonadotropin to obtain an immunonanogold probe (ING). In pH 7.0 Na2HPO4-citrate buffer solution containing KCl, ING probes formed large aggregates in which Victoria blue B (VBB) molecules were adsorbed on the surface and which exhibited strong surface-enhanced Raman scattering (SERS) at a peak of 1612 cm(-1). After addition of human chorionic gonadotropin (hCG) an immune reaction with the ING probe occurred to form dispersive ING-hCG complexes with non-SERS activity that led to a decreased SERS peak at 1612 cm(-1). The decreased SERS intensity was linear to the concentration of hCG over 2.4-73.2 ng/mL. The ING reaction was studied in detail by SERS, scanning electron microscope (SEM), resonance Rayleigh scattering (RRS), surface plasmon resonance (SPR) absorption and laser scattering techniques. SERS quenching was observed and discussed.
Collapse
Affiliation(s)
- Lu Ma
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Guiqing Wen
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Lingling Ye
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Zujun Lu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Yanghe Luo
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Aihui Liang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| | - Zhiliang Jiang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry of Education, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guangxi Normal University, Guilin, 541004, China
| |
Collapse
|
17
|
Label-free electrochemical immunosensor based on gold–silicon carbide nanocomposites for sensitive detection of human chorionic gonadotrophin. Biosens Bioelectron 2014; 57:199-206. [DOI: 10.1016/j.bios.2014.02.019] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 02/08/2014] [Accepted: 02/10/2014] [Indexed: 02/03/2023]
|
18
|
Ortiz M, Wilson L, Botero ML, Baker P, Iwuoha E, Fragoso A, O'Sullivan CK. Supramolecular Amperometric Immunosensor for Detection of Human Chorionic Gonadotropin. ELECTROANAL 2014. [DOI: 10.1002/elan.201400103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
19
|
Guo W, Liu Y, Meng X, Pei M, Jinping Wang JW, Wang L. A novel signal amplification strategy of an electrochemical immunosensor for human chorionic gonadotropin, based on nanocomposites of multi-walled carbon nanotubes–ionic liquid and nanoporous Pd. RSC Adv 2014. [DOI: 10.1039/c4ra09791b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel electrochemical immunosensor using MWCNTs–BMIMPF6/NP-Pd as a sensor platform to sequentially immobilize antibodies was developed for hCG detection.
Collapse
Affiliation(s)
- Wenjuan Guo
- Shandong Provincial Key Laboratory of Chemical Sensing & Analysis
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, China
| | - Yiming Liu
- Shandong Provincial Key Laboratory of Chemical Sensing & Analysis
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, China
| | - Xue Meng
- Shandong Provincial Key Laboratory of Chemical Sensing & Analysis
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, China
| | - Meishan Pei
- Shandong Provincial Key Laboratory of Chemical Sensing & Analysis
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, China
| | - Jinping Wang Jinping Wang
- Shandong Provincial Key Laboratory of Chemical Sensing & Analysis
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, China
| | - Luyan Wang
- Shandong Provincial Key Laboratory of Chemical Sensing & Analysis
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022, China
| |
Collapse
|
20
|
Direct electrodeposition of gold nanotube arrays of rough and porous wall by cyclic voltammetry and its applications of simultaneous determination of ascorbic acid and uric acid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1323-30. [DOI: 10.1016/j.msec.2012.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 03/25/2012] [Accepted: 04/01/2012] [Indexed: 11/18/2022]
|