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Abuduhelili A, Chen R, Sun J, Bu Y, Yin D, Li G, Meng X, Zeng J. Oxygen Vacancy-Enriched CoFe 2O 4 for Electrochemically Sensitive Detection of the Breast Cancer CD44 Biomarker. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14583-14593. [PMID: 38967629 DOI: 10.1021/acs.langmuir.4c01496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Enhancing the selectivity of detection methods is essential to distinguish breast cancer biomarker cluster of differentiation 44 (CD44) from other species and reduce false-positive or false-negative results. Here, oxygen vacancy-enriched CoFe2O4 (CoFe2O4-x) was crafted, and its implementation as an electrochemical electrode for the detection of CD44 biomarkers has been scrutinized. This unique electrode material offers significant benefits and novel features that enhance the sensitivity and selectivity of the detection process. The oxygen vacancy density of CoFe2O4-x was tuned by adjusting the mass ratios of iron to cobalt precursors (iron-cobalt ratio) and changing annealing atmospheres. Electrochemical characterization reveals that, when the iron-cobalt ratio is 1:0.54 and the annealing atmosphere is nitrogen, the as-synthesized CoFe2O4-x electrode manifests the best electrochemical activity. The CoFe2O4-x electrode demonstrates high sensitivity (28.22 μA (ng mL)-1 cm-2), low detection limit (0.033 pg mL-1), and robust stability (for 11 days). Oxygen vacancies can not only enhance the conductivities of CoFe2O4 but also provide better adsorption of -NH2, which is beneficial for stability and electrochemical detection performance. The electrochemical detection signal can be amplified using CoFe2O4-x as a signal probe. Additionally, it is promising to know that the CoFe2O4-x electrode has shown good accuracy in real biological samples, including melanoma cell dilutions and breast cancer patient sera. The electrochemical detection results are comparable to ELISA results, which indicates that the CoFe2O4-x electrode can detect CD44 in complex biological samples. The utilization of CoFe2O4-x as the signal probe may expand the application of CoFe2O4-x in biosensing fields.
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Affiliation(s)
- Abudulitifujiang Abuduhelili
- Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang 830001, PR China
| | - Rongling Chen
- Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang 830001, PR China
| | - Jian Sun
- Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang 830001, PR China
| | - Yingchun Bu
- Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang 830001, PR China
| | - Dongfeng Yin
- Department of Pharmacy, General Hospital of Xinjiang Military Command, PLA, Urumqi, Xinjiang 830001, PR China
| | - Gairu Li
- Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang 830001, PR China
| | - Xiangtong Meng
- State Key Laboratory of Organic-Inorganic Composites, State Key Laboratory of Chemical Resource Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Jinfeng Zeng
- Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang 830001, PR China
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Aydın EB, Aydın M, Sezgintürk MK. Label-Free Electrochemical Immunosensor Based on Conjugated Polymer Film Coated Disposable Electrode for Ultrasensitive Determination of Resistin Potential Obesity Biomarker. ACS APPLIED BIO MATERIALS 2024; 7:1820-1830. [PMID: 38395746 PMCID: PMC10952011 DOI: 10.1021/acsabm.3c01231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/09/2024] [Accepted: 02/11/2024] [Indexed: 02/25/2024]
Abstract
A new label-free immunosensor was designed for sensitive detection of resistin obesity biomarker in human biological fluids. To construct a sensing interface, the monomer of double epoxy groups-substituted thiophene (TdiEpx) was synthesized for the fabrication of the biosensing system. A disposable indium tin oxide sheet was first modified by electrochemical polymerization of the TdiEpx monomer, and this robust and novel surface was characterized using different spectroscopic and electrochemical analyses. The double epoxy ends were linked to the amino ends of anti-resistin, and they served as binding points for the covalent binding of biomolecules. The double epoxy ends present in each TdiEpx monomer ensured an extensive surface area, which improved the quantity of attached anti-resistin. The determination of resistin antigen was based on the specific coupling of resistin with anti-resistin, and this interaction hindered the electron transfer reaction. The immunosensor introduced a wide linear range of 0.0125-15 pg/mL, a low detection limit of 4.17 fg/mL, and an excellent sensitivity of 1.38 kohm pg mL-1 cm2. In this study, a sandwich enzyme-linked immunosorbent assay spectrophotometric method was utilized as a reference technique for the quantitative analysis of resistin in human serum and saliva samples. Both measurements in clinical samples displayed correlations and high-correlation coefficients. In addition, this immunosensor had good storage stability, acceptable repeatability and reproducibility, high specificity, and good accuracy. The proposed immunosensor provided a simple and versatile impedimetric immunosensing platform and a promisingly sensitive way for clinical applications.
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Affiliation(s)
- Elif Burcu Aydın
- Scientific
and Technological Research Center, Tekirdaǧ
Namık Kemal University, Tekirdaǧ, Turkey 59030
| | - Muhammet Aydın
- Scientific
and Technological Research Center, Tekirdaǧ
Namık Kemal University, Tekirdaǧ, Turkey 59030
| | - Mustafa Kemal Sezgintürk
- Bioengineering
Department, Faculty of Engineering, Çanakkale
Onsekiz Mart University, Çanakkale, Turkey 17100
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Tyagi R, Yadav K, Srivastava N, Sagar R. Applications of Pyrrole and Pyridine-based Heterocycles in Cancer Diagnosis and Treatment. Curr Pharm Des 2024; 30:255-277. [PMID: 38711394 DOI: 10.2174/0113816128280082231205071504] [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: 08/31/2023] [Accepted: 10/23/2023] [Indexed: 05/08/2024]
Abstract
BACKGROUND The escalation of cancer worldwide is one of the major causes of economy burden and loss of human resources. According to the American Cancer Society, there will be 1,958,310 new cancer cases and 609,820 projected cancer deaths in 2023 in the United States. It is projected that by 2040, the burden of global cancer is expected to rise to 29.5 million per year, causing a death toll of 16.4 million. The hemostasis regulation by cellular protein synthesis and their targeted degradation is required for normal cell growth. The imbalance in hemostasis causes unbridled growth in cells and results in cancer. The DNA of cells needs to be targeted by chemotherapeutic agents for cancer treatment, but at the same time, their efficacy and toxicity also need to be considered for successful treatment. OBJECTIVE The objective of this study is to review the published work on pyrrole and pyridine, which have been prominent in the diagnosis and possess anticancer activity, to obtain some novel lead molecules of improved cancer therapeutic. METHODS A literature search was carried out using different search engines, like Sci-finder, Elsevier, ScienceDirect, RSC etc., for small molecules based on pyrrole and pyridine helpful in diagnosis and inducing apoptosis in cancer cells. The research findings on the application of these compounds from 2018-2023 were reviewed on a variety of cell lines, such as breast cancer, liver cancer, epithelial cancer, etc. Results: In this review, the published small molecules, pyrrole and pyridine and their derivatives, which have roles in the diagnosis and treatment of cancers, were discussed to provide some insight into the structural features responsible for diagnosis and treatment. The analogues with the chromeno-furo-pyridine skeleton showed the highest anticancer activity against breast cancer. The compound 5-amino-N-(1-(pyridin-4- yl)ethylidene)-1H-pyrazole-4-carbohydrazides was highly potent against HEPG2 cancer cell. Redaporfin is used for the treatment of cholangiocarcinoma, biliary tract cancer, cisplatin-resistant head and neck squamous cell carcinoma, and pigmentation melanoma, and it is in clinical trials for phase II. These structural features present a high potential for designing novel anticancer agents for diagnosis and drug development. CONCLUSION Therefore, the N- and C-substituted pyrrole and pyridine-based novel privileged small Nheterocyclic scaffolds are potential molecules used in the diagnosis and treatment of cancer. This review discusses the reports on the synthesis of such molecules during 2018-2023. The review mainly discusses various diagnostic techniques for cancer, which employ pyrrole and pyridine heterocyclic scaffolds. Furthermore, the anticancer activity of N- and C-substituted pyrrole and pyridine-based scaffolds has been described, which works against different cancer cell lines, such as MCF-7, A549, A2780, HepG2, MDA-MB-231, K562, HT- 29, Caco-2 cells, Hela, Huh-7, WSU-DLCL2, HCT-116, HBL-100, H23, HCC827, SKOV3, etc. This review will help the researchers to obtain a critical insight into the structural aspects of pyrrole and pyridine-based scaffolds useful in cancer diagnosis as well as treatment and design pathways to develop novel drugs in the future.
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Affiliation(s)
- Rajdeep Tyagi
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110007, India
| | - Kanchan Yadav
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110007, India
| | - Nitin Srivastava
- Department of Chemistry, Amity University Lucknow Campus, Lucknow, Uttar Pradesh 226028, India
| | - Ram Sagar
- Glycochemistry Laboratory, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110007, India
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Fei W, Wang X, Guo J, Wang C. Design and investigation of targeting agent orientation and density on nanoparticles for enhancing cellular uptake efficiency. J Mater Chem B 2023; 11:8228-8240. [PMID: 37565424 DOI: 10.1039/d3tb01375h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
The design of targeting agent-conjugated systems is attracting much attention in cell targeted delivery and cancer therapy. However, quantitative study of the ligand density and binding efficiency is still limited due to the technical matters and tedious work involved. In this article, benzoboroxole-modified core-shell magnetic nanoparticles (MSP-AOPB NPs) as a drug carrier model were fabricated and transferrin (Tf) was immobilized on the nanoparticle surface in a site-oriented manner (Tf-MSP-AOPB NPs). The preparation conditions were investigated in detail to optimize the Tf binding efficiency. A suitable reaction temperature, time or initial feeding amount could significantly increase the Tf binding amount. The maximum Tf binding amount on the MSP-AOPB NPs was 184 mg g-1, and the targeting ligand density on the surface could be well controlled by simply adjusting the reaction conditions. In vitro studies demonstrated the excellent Tf-mediated targeting ability and enhanced cellular uptake efficacy by varying the ligand density. The optimal ligand binding amount for achieving the highest cellular uptake efficiency was 94 mg Tf/g, which corresponds to a ligand binding density of about 0.05 Tf/nm2, and the binding efficiency of conjugation was higher than 90%. Moreover, Tf-MSP-AOPB NPs prepared by a site-oriented conjugation strategy showed the best cell targeting ability, and their cellular uptake amount was 25 and 127 times higher than that of physical adsorption and EDC/NHS coupling reaction in HepG2 cells, respectively. This study provides a facile site-oriented bioconjugation technique for different kinds of antibodies, and a suitable ligand density can be easily attained to enhance the cellular uptake efficacy, which shows great significance for targeted delivery and cancer therapy.
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Affiliation(s)
- Weiwei Fei
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
| | - Xiuli Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
| | - Jia Guo
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
| | - Changchun Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China.
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Ekwujuru EU, Olatunde AM, Klink MJ, Ssemakalu CC, Chili MM, Peleyeju MG. Electrochemical and Photoelectrochemical Immunosensors for the Detection of Ovarian Cancer Biomarkers. SENSORS (BASEL, SWITZERLAND) 2023; 23:4106. [PMID: 37112447 PMCID: PMC10142013 DOI: 10.3390/s23084106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/20/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
Photoelectrochemical (PEC) sensing is an emerging technological innovation for monitoring small substances/molecules in biological or non-biological systems. In particular, there has been a surge of interest in developing PEC devices for determining molecules of clinical significance. This is especially the case for molecules that are markers for serious and deadly medical conditions. The increased interest in PEC sensors to monitor such biomarkers can be attributed to the many apparent advantages of the PEC system, including an enhanced measurable signal, high potential for miniaturization, rapid testing, and low cost, amongst others. The growing number of published research reports on the subject calls for a comprehensive review of the various findings. This article is a review of studies on electrochemical (EC) and PEC sensors for ovarian cancer biomarkers in the last seven years (2016-2022). EC sensors were included because PEC is an improved EC; and a comparison of both systems has, expectedly, been carried out in many studies. Specific attention was given to the different markers of ovarian cancer and the EC/PEC sensing platforms developed for their detection/quantification. Relevant articles were sourced from the following databases: Scopus, PubMed Central, Web of Science, Science Direct, Academic Search Complete, EBSCO, CORE, Directory of open Access Journals (DOAJ), Public Library of Science (PLOS), BioMed Central (BMC), Semantic Scholar, Research Gate, SciELO, Wiley Online Library, Elsevier and SpringerLink.
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Affiliation(s)
- Ezinne U. Ekwujuru
- Department of Biotechnology and Chemistry, Vaal University of Technology, Vanderbijlpark 1911, South Africa
| | | | - Michael J. Klink
- Department of Biotechnology and Chemistry, Vaal University of Technology, Vanderbijlpark 1911, South Africa
| | - Cornelius C. Ssemakalu
- Department of Biotechnology and Chemistry, Vaal University of Technology, Vanderbijlpark 1911, South Africa
| | - Muntuwenkosi M. Chili
- Department of Biotechnology and Chemistry, Vaal University of Technology, Vanderbijlpark 1911, South Africa
- Centre for Academic Development, Vaal University of Technology, Vanderbijlpark 1911, South Africa
| | - Moses G. Peleyeju
- Department of Biotechnology and Chemistry, Vaal University of Technology, Vanderbijlpark 1911, South Africa
- Centre for Academic Development, Vaal University of Technology, Vanderbijlpark 1911, South Africa
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Cruz-Pacheco AF, Quinchia J, Orozco J. Nanostructured poly(thiophene acetic acid)/Au/poly(methylene blue) interface for electrochemical immunosensing of p53 protein. Mikrochim Acta 2023; 190:136. [PMID: 36920574 DOI: 10.1007/s00604-023-05683-5] [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: 12/09/2022] [Accepted: 01/30/2023] [Indexed: 03/16/2023]
Abstract
A poly(thiophene acetic acid)/Au/poly(methylene blue) nanostructured interface was electrochemically assembled step-by-step on screen-printed carbon electrodes (SPCE) for label-free detection of p53 protein. The initial electrical conductive properties of the polymeric interface were increased with an additional layer of poly(methylene blue) electropolymerized in the presence of gold nanoparticles. The nano-immunosensing architecture was prepared by covalent immobilization of anti-p53 antibodies as bioreceptors through the poly(thiophene acetic acid) moieties. The nano-immunosensor assembly was extensively characterized by ultraviolet-visible spectrophotometry, dynamic and electrophoretic light scattering, scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, atomic force microscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. Under optimal conditions, p53 was specifically and selectively detected by square wave voltammetry in a linear range between 1 and 100 ng mL-1 with a limit of detection of 0.65 ng mL-1. In addition, the electrochemical nano-immunosensor detected p53 in spiked human serum samples and colorectal cancer cell lysates, and the results were validated with a standard spectrophotometric method using a paired samples t test, which did not exhibit significant differences between both methods. The resultant p53 nano-immunosensor is simple to assemble, robust, and has the potential for point-of-care biomarker detection applications.
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Affiliation(s)
- Andrés F Cruz-Pacheco
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, 050010, Medellín, Colombia
| | - Jennifer Quinchia
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, 050010, Medellín, Colombia
| | - Jahir Orozco
- Max Planck Tandem Group in Nanobioengineering, Institute of Chemistry, Faculty of Natural and Exact Sciences, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, 050010, Medellín, Colombia.
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Mendrek B, Oleszko-Torbus N, Teper P, Kowalczuk A. Towards a modern generation of polymer surfaces: nano- and microlayers of star macromolecules and their design for applications in biology and medicine. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2023.101657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Aydın EB, Aydın M, Sezgintürk MK. A Simple and Low-Cost Electrochemical Immunosensor for Ultrasensitive Determination of Calreticulin Biomarker in Human Serum. Macromol Biosci 2023; 23:e2200390. [PMID: 36419333 DOI: 10.1002/mabi.202200390] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/13/2022] [Indexed: 11/27/2022]
Abstract
An early on time detection of breast cancer significantly affects the treatment process and outcome. Herein, a new label-free impedimetric biosensor is developed to determine the lowest change in the level of calreticulin (CALR), which is a new biomarker of breast carcinoma. The proposed immunosensor is fabricated by using reduced graphene oxide/amino substituted polypyrrole polymer (rGO-PPyNH2 ) nanocomposite modified disposable electrode. The anti-CALR antibodies are first attached on the rGO-PPyNH2 nanocomposite coated electrode through glutaraldehyde crosslinking; the CALR antigens are then immobilized with the addition of CALR antigens to form an immunocomplex on the sensing surface. This immunocomplex induces considerably larger interfacial electron transport resistance (Rct ). The variation in the Rct has a linear relationship with CALR level in the detection range of 0.025 to 75 pg mL-1 , with a detection limit of 10.4 fg mL-1 . The suggested biosensor shows high selectivity to CALR, good storage stability (at least 5 weeks) and suitable reproducibility results as shown in quality control chart. The designed immunosensor is utilized to analyze CALR levels in human sera with satisfying results. This immunosensor provides a novel way for the clinical determination of CALR and other cancer biological markers.
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Affiliation(s)
- Elif Burcu Aydın
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, 59000, Turkey
| | - Muhammet Aydın
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, 59000, Turkey
| | - Mustafa Kemal Sezgintürk
- Çanakkale Onsekiz Mart University, Faculty of Engineering, Bioengineering Department, Çanakkale, 17000, Turkey
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Gai Z, Li F, Yang X. Electrochemiluinescence monitoring the interaction between human serum albumin and amyloid-β peptide. Bioelectrochemistry 2022; 149:108315. [DOI: 10.1016/j.bioelechem.2022.108315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/08/2022] [Accepted: 10/24/2022] [Indexed: 11/02/2022]
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10
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Qian X, Yang H, Liu S, Yang L, Li J, Gao W, Du G, Qu Q, Ran X. Supramolecular DNA sensor based on the integration of host-guest immobilization strategy and WP5-Ag/PEHA supramolecular aggregates. Anal Chim Acta 2022; 1220:340077. [DOI: 10.1016/j.aca.2022.340077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/20/2022] [Accepted: 06/08/2022] [Indexed: 11/01/2022]
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Recent Progress in Electrochemical Immunosensors. BIOSENSORS-BASEL 2021; 11:bios11100360. [PMID: 34677316 PMCID: PMC8533705 DOI: 10.3390/bios11100360] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/17/2021] [Accepted: 09/27/2021] [Indexed: 12/11/2022]
Abstract
Biosensors used for medical diagnosis work by analyzing physiological fluids. Antibodies have been frequently used as molecular recognition molecules for the specific binding of target analytes from complex biological solutions. Electrochemistry has been introduced for the measurement of quantitative signals from transducer-bound analytes for many reasons, including good sensitivity. Recently, numerous electrochemical immunosensors have been developed and various strategies have been proposed to detect biomarkers. In this paper, the recent progress in electrochemical immunosensors is reviewed. In particular, we focused on the immobilization methods using antibodies for voltammetric, amperometric, impedimetric, and electrochemiluminescent immunosensors.
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12
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Zhao P, Chen S, Yang M, Wang Y, Luo H, Huo D, Ji Z, Hou C. A novel multifunctional platform based on ITO/APTES/ErGO/AuNPs for long-term cell culture and real-time biomolecule monitoring. Talanta 2021; 228:122232. [PMID: 33773736 DOI: 10.1016/j.talanta.2021.122232] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 02/01/2021] [Accepted: 02/13/2021] [Indexed: 11/25/2022]
Abstract
Integrating long-term cell culture with real-time electrochemical monitoring is a promising strategy for future studies of physiological and pathological processes. However, great challenges still remain in fabricating such a platform with satisfactory electrochemical performance as well as desirable biocompatibility. Herein, we proposed a novel multifunctional platform based on gold nanoparticles/electrochemically reduced graphene oxide/3-aminopropyl-triethoxysilane modified indium tin oxide plate (ITO/APTES/ErGO/AuNPs). The unique biological and electrical properties of AuNPs and ErGO endow the platform with superior electrocatalytic activity and desirable biocompatibility. As a proof of concept, the present platform showed satisfactory electrochemical performance for sensitive and selective detection of hydrogen peroxide (H2O2) with a sensitivity about 0.25 μA μM-1 cm-2 and a detection limit of 0.38 μM in a linear range of 0.5-1461 μM. And the principle of catalytic reduction was clarified through density functional calculations (DFT). Furthermore, cells grew on the platform exhibited excellent proliferation ability and considerable viability after a long-term cultivation. Based on those desirable performances, in-situ and real-time monitoring of endogenously produced H2O2 released from cancer cells cultured on the platform has been successfully realized, which will be of great significance in pathophysiology research.
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Affiliation(s)
- Peng Zhao
- Key Laboratory for Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Sha Chen
- Key Laboratory for Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Yongzhong Wang
- Key Laboratory for Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Huibo Luo
- Liquor Making Biology Technology and Application of Key Laboratory of Sichuan Province, College of Bioengineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China; Liquor Making Biology Technology and Application of Key Laboratory of Sichuan Province, College of Bioengineering, Sichuan University of Science and Engineering, Zigong, 643000, PR China
| | - Zhong Ji
- Key Laboratory for Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China.
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology (Chongqing University), Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
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Yang F, Li X, Yuan R, Xiang Y. High-Fidelity and Simultaneous Sensing of Endogenous Mutant and Wild p53 Proteins for Precise Cancer Diagnosis and Drug Screening. Anal Chem 2021; 93:8084-8090. [PMID: 34034482 DOI: 10.1021/acs.analchem.1c01540] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The simultaneous sensing of endogenous wild and mutant proteins plays a critical role in disease diagnosis and drug screening, and this remains a major current challenge. Here, we present a new and highly specific target-triggered dual proximity ligation assay (dPLA) strategy for sensitive and simultaneous sensing of wild and mutant p53 proteins from cancer cells. Two proximity DNA probes bind the target protein to form the primer/circular DNA template complexes with two nicks in the presence of the hairpin and ssDNA connector sequences via the strand displacement reaction. Only when the two nicks are simultaneously ligated can the rolling circle amplification be triggered with high fidelity for yielding substantially enhanced fluorescence. By encoding the hairpin sequence, two distinct fluorescence signals can be generated for simultaneous detection of the wild and mutant p53 proteins. Importantly, our method significantly reduces the possibility of nonspecific ligation reactions by using two ligation nicks, which minimizes the background noise. With this dPLA method, the regulation transition of intracellular mutant p53 to wild p53 proteins upon anticancer drug treatment has also been demonstrated, highlighting its usefulness for potential early disease diagnosis and drug screening with high fidelity.
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Affiliation(s)
- Fang Yang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Xia Li
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Ruo Yuan
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yun Xiang
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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14
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Electrochemical biosensors for measurement of colorectal cancer biomarkers. Anal Bioanal Chem 2021; 413:2407-2428. [PMID: 33666711 DOI: 10.1007/s00216-021-03197-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/15/2021] [Accepted: 01/23/2021] [Indexed: 02/06/2023]
Abstract
Colorectal cancer (CRC) is associated with one of the highest rates of mortality among cancers worldwide. The early detection and management of CRC is imperative. Biomarkers play an important role in CRC screening tests, CRC treatment, and prognosis and clinical management; thus rapid and sensitive detection of biomarkers is helpful for early detection of CRC. In recent years, electrochemical biosensors for detecting CRC biomarkers have been widely investigated. In this review, different electrochemical detection methods for CRC biomarkers including immunosensors, aptasensors, and genosensors are summarized. Further, representative examples are provided that demonstrate the advantages of electrochemical sensors modified by various nanomaterials. Finally, the limitations and prospects of biomarkers and electrochemical sensors in detection are also discussed. Graphical abstract.
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Aydin EB, Aydin M, Sezgintürk MK. A Label-free Electrochemical Immunosensor for Highly Sensitive Detection of TNF α, Based on Star Polymer-modified disposable ITO Electrode. CURR PHARM ANAL 2021. [DOI: 10.2174/1573412916999200409111759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Biomarkers are very important disease-related biomolecules which should be
analyzed sensitive and selective in related physiological fluids or tissues. Tumor necrosis factor-α is a
type of cytokine which plays vitlly important roles in different methabolic pathways such as cell death,
survival, differentiation, proliferation and migration, and infectious and inflammatory diseases including
rheumatoid arthritis, diabetes.
Objective:
In this study, it was aimed to develop a reliable tool based on star-shaped poly(glycidyl
methacrylate) polymer coated disposable indium tin oxide electrode for determination of Tumor necrosis
factor-α, an important disease biomarker.
Methods:
Star shaped polymer was used as an interface material for anti- Tumor necrosis factor α antibodies
immobilization. The antibodies were immobilized covalently onto polymer coated indium tin
oxide electrode. Electrochemical impedance spectroscopy and cyclic voltammetry techniques were
used for all electrochemical measurements.
Results:
The suggested immunosensor exhibited a linear range between 0.02 and 4 pg/mL Tumor necrosis
factor-α, and the detection limit was found as 6 fg/mL. Scanning electron microscopy and atomic
force microscopy were used for electrode surface characterization. In addition, the suggested immunosensor
was used for Tumor necrosis factor-α sensing in human serum samples. The results displayed
recoveries between 97.07 and 100.19%. Moreover, this immunosensor had a simple fabrication
procedure and a long storage-stability.
Conclusion:
A new biosensor based on a Star shaped polymer for the ultra sensitive determination of a
biomarker Tumor necrosis factor-α was developed. The biosensor presented excellent repeatability and
reproducubility, and also wide calibration range for Tumor necrosis factor- α.
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Affiliation(s)
- Elif Burcu Aydin
- Scientific and Technological Research Center, Namik Kemal University, Tekirdag,Turkey
| | - Muhammet Aydin
- Scientific and Technological Research Center, Namik Kemal University, Tekirdag,Turkey
| | - Mustafa Kemal Sezgintürk
- Bioengineering Department, Faculty of Engineering, Canakkale Onsekiz Mart University, Canakkale,Turkey
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16
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Aydın EB, Aydın M, Yuzer A, Ince M, Ocakoğlu K, Sezgintürk MK. Detection of Kallikrein-Related Peptidase 4 with a Label-free Electrochemical Impedance Biosensor Based on a Zinc(II) Phthalocyanine Tetracarboxylic Acid-Functionalized Disposable Indium Tin Oxide Electrode. ACS Biomater Sci Eng 2021; 7:1192-1201. [DOI: 10.1021/acsbiomaterials.0c01602] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elif Burcu Aydın
- Scientific and Technological Research Center, Tekirdağ Namık Kemal University, Tekirdağ 59030, Turkey
| | - Muhammet Aydın
- Scientific and Technological Research Center, Tekirdağ Namık Kemal University, Tekirdağ 59030, Turkey
| | - Abdulcelil Yuzer
- Department of Natural and Mathematical Sciences, Faculty of Engineering, Tarsus University, Mersin 33400, Turkey
| | - Mine Ince
- Department of Natural and Mathematical Sciences, Faculty of Engineering, Tarsus University, Mersin 33400, Turkey
| | - Kasim Ocakoğlu
- Department of Natural and Mathematical Sciences, Faculty of Engineering, Tarsus University, Mersin 33400, Turkey
| | - Mustafa Kemal Sezgintürk
- Bioengineering Department, Faculty of Engineering, Çanakkale Onsekiz Mart University, Çanakkale 17100, Turkey
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17
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Fabrication of electrochemical immunosensor based on acid-substituted poly(pyrrole) polymer modified disposable ITO electrode for sensitive detection of CCR4 cancer biomarker in human serum. Talanta 2021; 222:121487. [DOI: 10.1016/j.talanta.2020.121487] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 07/20/2020] [Accepted: 07/29/2020] [Indexed: 02/07/2023]
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18
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Aydın EB, Aydın M, Sezgintürk MK. A novel electrochemical immunosensor based on acetylene black/epoxy-substituted-polypyrrole polymer composite for the highly sensitive and selective detection of interleukin 6. Talanta 2021; 222:121596. [DOI: 10.1016/j.talanta.2020.121596] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 12/21/2022]
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19
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Ranjan P, Parihar A, Jain S, Kumar N, Dhand C, Murali S, Mishra D, Sanghi SK, Chaurasia JP, Srivastava AK, Khan R. Biosensor-based diagnostic approaches for various cellular biomarkers of breast cancer: A comprehensive review. Anal Biochem 2020; 610:113996. [PMID: 33080213 DOI: 10.1016/j.ab.2020.113996] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 10/09/2020] [Accepted: 10/13/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Pushpesh Ranjan
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-AMPRI, Bhopal, 462026, India
| | - Arpana Parihar
- Department of Biochemistry and Genetics, Barkatullah University, Bhopal, Madhya Pradesh, 462026, India
| | - Surbhi Jain
- Department of Biochemistry and Genetics, Barkatullah University, Bhopal, Madhya Pradesh, 462026, India
| | - Neeraj Kumar
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-AMPRI, Bhopal, 462026, India
| | - Chetna Dhand
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India
| | - S Murali
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India
| | - Deepti Mishra
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India
| | - Sunil K Sanghi
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India
| | - J P Chaurasia
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India
| | - Avanish K Srivastava
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India.
| | - Raju Khan
- CSIR - Advanced Materials and Processes Research Institute (AMPRI), Hoshangabad Road, Bhopal, 462026, India.
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Aydın EB, Sezgintürk MK. Ultrasensitive detection of interleukin 1α using 3-phosphonopropionic acid modified FTO surface as an effective platform for disposable biosensor fabrication. Bioelectrochemistry 2020; 138:107698. [PMID: 33254051 DOI: 10.1016/j.bioelechem.2020.107698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/21/2020] [Accepted: 10/31/2020] [Indexed: 01/09/2023]
Abstract
In this study, we utilized a carboxyalkylphosphonic acid covered fluorine doped tin oxide (FTO) as an electrode material for fabrication of Interleukin 1α (IL-1α) immunosensor. For this aim, anti-IL-1α antibodies were attached on the 3-phosphonopropionic acid (PHP) modified FTO surface covalently. Electrochemical (electrochemical impedance spectroscopy and cyclic voltammetry) and morphological (scanning electron microscopy and atomic force microscopy) characterizations were performed to monitor the successful fabrication of immunoelectrodes. After incubation of anti-IL-1α antibody immobilized FTO electrodes in IL-1α antigen solutions, increases were seen in impedimetric responses. IL-1α antigen was determined in a linear detection range from 0.02 to 2 pg/mL by EIS. The detection limit of the suggested immunosensor was 6 fg/mL. The applicability of the designed biosensor was tested by using human serum and saliva samples and acceptable results were obtained. In addition, high sensitivity, good specificity, low detection limit made the proposed immunosensor a potential technique for IL-1α antigen determination in routine clinical analysis.
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Affiliation(s)
- Elif Burcu Aydın
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ Turkey.
| | - Mustafa Kemal Sezgintürk
- Çanakkale Onsekiz Mart University, Faculty of Engineering, Bioengineering Department, Çanakkale, Turkey
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21
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Aydın EB, Aydın M, Sezgintürk MK. Electrochemical Immunosensor for Detection of CCR4 Cancer Biomarker in Human Serum: An Alternative Strategy for Modification of Disposable ITO Electrode. Macromol Biosci 2020; 21:e2000267. [PMID: 33108068 DOI: 10.1002/mabi.202000267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/14/2020] [Indexed: 11/12/2022]
Abstract
Herein, a new strategy for the fabrication of a sensitive immunosensor capable of determination of CC Chemokine receptor 4 (CCR4) in complex serum samples is developed through the polymer modification on the disposable indium tin oxide electrode. Anti-CCR4 antibodies, which are utilized as sensing biomolecules, are covalently attached on the succinimide groups of polypyrrole polymer (PPyr-CSsg). The constructed immunosensor illustrates promising performances for the quantification of CCR4 antigen, with a linear detection range of 0.024-12 pg mL-1 and a low detection limit of 7.3 fg mL-1 , calculated at a signal-to-noise ratio of 3. In addition, the impedimetric immunosensor displays a very successful analytical performance in terms of sensitivity, selectivity, repeatability, reproducibility, and long-term stability as well as successful applicability for the accurate quantification of CCR4 in human serum samples. The constructed immunosensor is successfully used for quantification of CCR4 antigen in human serums. In addition, the immunosensor displays only 27.54% loss in its initial signal after nine weeks storage at 4 °C. Moreover, the fabricated immunosensor is economical, highly sensitive, and selective for CCR4 antigen detection, and suitable for potential application in clinical diagnosis.
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Affiliation(s)
- Elif Burcu Aydın
- Scientific and Technological Research Center, Tekirdağ Namık Kemal University, Tekirdağ, 59100, Turkey
| | - Muhammet Aydın
- Scientific and Technological Research Center, Tekirdağ Namık Kemal University, Tekirdağ, 59100, Turkey
| | - Mustafa Kemal Sezgintürk
- Faculty of Engineering, Bioengineering Department, Çanakkale Onsekiz Mart University, Çanakkale, 17020, Turkey
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22
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Ibáñez-Redín G, Joshi N, do Nascimento GF, Wilson D, Melendez ME, Carvalho AL, Reis RM, Gonçalves D, Oliveira ON. Determination of p53 biomarker using an electrochemical immunoassay based on layer-by-layer films with NiFe 2O 4 nanoparticles. Mikrochim Acta 2020; 187:619. [PMID: 33083850 DOI: 10.1007/s00604-020-04594-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 10/07/2020] [Indexed: 01/15/2023]
Abstract
A disposable electrochemical immunosensors is presented suitable to detect cancer biomarker p53 using screen-printed carbon electrodes modified with a layer-by-layer (LbL) matrix of carboxylated NiFe2O4 nanoparticles and polyethyleneimine, onto which anti-p53 antibodies were adsorbed. Under optimized conditions, the immunosensors exhibited high surface coverage and high concentration of immobilized antibodies, which allowed for detection of p53 in a wide dynamic range from 1.0 to 10 × 103 pg mL-1, with a limit of detection of 5.0 fg mL-1 at a working potential of 100 mV vs. Ag/AgCl. The immunosensors also exhibited good selectivity with negligible interference upon incubation in complex matrices containing high concentrations of proteins (i.e., fetal bovine serum and cell lysate). The immunosensor performance is among the best reported in the literature for determination of p53, with the additional advantage of being disposable and operating with low-volume solutions.Graphical abstract Schematic representation of immunosensor fabrication depicting the immobilization of specific antibodies against p53 protein onto the surfaces of disposable printed electrodes modified with films of polyethyleneimine and different concentrations of carboxylated magnetic nanoparticles.
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Affiliation(s)
- Gisela Ibáñez-Redín
- São Carlos Institute of Physics, University of São Paulo, SP, 13560-970, São Carlos, Brazil
| | - Nirav Joshi
- São Carlos Institute of Physics, University of São Paulo, SP, 13560-970, São Carlos, Brazil.
| | | | - Deivy Wilson
- São Carlos Institute of Physics, University of São Paulo, SP, 13560-970, São Carlos, Brazil
| | - Matias E Melendez
- Pelé Little Prince Research Institute, Little Prince Complex, PR, 80250-060, Curitiba, Brazil.,Molecular Oncology Research Center, Barretos Cancer Hospital, SP, 14784-400, Barretos, Brazil
| | - André L Carvalho
- Molecular Oncology Research Center, Barretos Cancer Hospital, SP, 14784-400, Barretos, Brazil
| | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, SP, 14784-400, Barretos, Brazil.,Life and eHealth Sciences Research Institute (ICVS), Medical School, University ofMinho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/ Guimarães, Portugal
| | - Débora Gonçalves
- São Carlos Institute of Physics, University of São Paulo, SP, 13560-970, São Carlos, Brazil
| | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo, SP, 13560-970, São Carlos, Brazil.
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23
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Bakirhan NK, Topal BD, Ozcelikay G, Karadurmus L, Ozkan SA. Current Advances in Electrochemical Biosensors and Nanobiosensors. Crit Rev Anal Chem 2020; 52:519-534. [DOI: 10.1080/10408347.2020.1809339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Nurgul K. Bakirhan
- Department of Analytical Chemistry, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey
| | - Burcu D. Topal
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Goksu Ozcelikay
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Leyla Karadurmus
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
- Department of Analytical Chemistry, Faculty of Pharmacy, Adıyaman University, Adıyaman, Turkey
| | - Sibel A. Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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24
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Abstract
In recent years, advances in immunosensor device fabrication have significantly expanded the use of this technology in a broad range of applications including clinical diagnosis, food analysis, quality control, environmental studies and industrial monitoring. The most important aspect in fabrication is to obtain a design that provides a low detection limit. The utilization of nanomaterials as a label, catalyst and biosensing transducer is, perhaps, the most popular approach in ultrasensitive devices. This chapter reviews recent advances in immunosensor fabrication and summarizes the most recent studies. Strategies employed to significantly improve sensitivity and specificity of immunosensor technology and the advantages and limitations thereof are explored.
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Affiliation(s)
- Muhammet Aydin
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey.
| | - Elif Burcu Aydin
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey
| | - Mustafa Kemal Sezgintürk
- Bioengineering Department, Faculty of Engineering, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
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25
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Ito RM, de Souza CC, Gandarilla AMD, de Oliveira LM, Brito WR, Sanches EA, Matos RS, da Fonseca Filho HD. Micromorphology and microtexture evaluation of poly(o-ethoxyaniline) films using atomic force microscopy and fractal analysis. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02262-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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26
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Hou L, Huang Y, Hou W, Yan Y, Liu J, Xia N. Modification-free amperometric biosensor for the detection of wild-type p53 protein based on the in situ formation of silver nanoparticle networks for signal amplification. Int J Biol Macromol 2020; 158:580-586. [PMID: 32380113 DOI: 10.1016/j.ijbiomac.2020.04.271] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/12/2020] [Accepted: 04/30/2020] [Indexed: 02/03/2023]
Abstract
Sensitive and accurate quantification of wild-type p53 protein is of great importance for biological research and clinical diagnosis. Herein, a modification-free amperometric biosensor was proposed for sensitive detection of wild-type p53 protein by the signal amplification of silver nanoparticles (AgNPs) networks formed in situ on electrode surface. Double-stranded DNA (dsDNA) probe containing two consensus sites was immobilized on gold electrode surface to capture wild-type p53 protein. The cysteine thiol and amine groups on the exterior of the protein allowed for the attachment of bare AgNPs through the AgS or AgN interactions. Meanwhile, benzene-1,4-dithiol (BDT) molecules in solution triggered the assembly of more AgNPs on electrode surface through the AgS interactions, thus leading to the in situ formation of AgNPs networks for signal amplification. The target at the concentration as low as 0.1 pM can be readily determined. This method was further applied to determine wild-type p53 protein in spiked human serum and cell lysates with satisfactory results. Moreover, the biosensor is regenerative and does not require the modification of AgNPs with recognition element for signal readout. The modification-free strategy can potentially be applied to develop novel biosensors for detection of other biological macromolecules.
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Affiliation(s)
- Linlin Hou
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Yaliang Huang
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Weilin Hou
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Yurou Yan
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Jinlin Liu
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China
| | - Ning Xia
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang, Henan 455000, People's Republic of China.
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Quinchia J, Echeverri D, Cruz-Pacheco AF, Maldonado ME, Orozco J. Electrochemical Biosensors for Determination of Colorectal Tumor Biomarkers. MICROMACHINES 2020; 11:E411. [PMID: 32295170 PMCID: PMC7231317 DOI: 10.3390/mi11040411] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/13/2020] [Accepted: 03/17/2020] [Indexed: 12/15/2022]
Abstract
The accurate determination of specific tumor markers associated with cancer with non-invasive or minimally invasive procedures is the most promising approach to improve the long-term survival of cancer patients and fight against the high incidence and mortality of this disease. Quantification of biomarkers at different stages of the disease can lead to an appropriate and instantaneous therapeutic action. In this context, the determination of biomarkers by electrochemical biosensors is at the forefront of cancer diagnosis research because of their unique features such as their versatility, fast response, accurate quantification, and amenability for multiplexing and miniaturization. In this review, after briefly discussing the relevant aspects and current challenges in the determination of colorectal tumor markers, it will critically summarize the development of electrochemical biosensors to date to this aim, highlighting the enormous potential of these devices to be incorporated into the clinical practice. Finally, it will focus on the remaining challenges and opportunities to bring electrochemical biosensors to the point-of-care testing.
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Affiliation(s)
- Jennifer Quinchia
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
| | - Danilo Echeverri
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
| | - Andrés Felipe Cruz-Pacheco
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
| | - María Elena Maldonado
- Grupo Impacto de los Componentes Alimentarios en la Salud, School of Dietetics and Human Nutrition, University of Antioquia, A.A. 1226, Medellín 050010, Colombia;
| | - Jahir Orozco
- Max Planck Tandem Group in Nanobioengineering, University of Antioquia, Complejo Ruta N, Calle 67 No. 52-20, Medellín 050010, Colombia; (J.Q.); (D.E.); (A.F.C.-P.)
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Lamarca RS, Faria RADD, Zanoni MVB, Nalin M, Lima Gomes PCFD, Messaddeq Y. Simple, fast and environmentally friendly method to determine ciprofloxacin in wastewater samples based on an impedimetric immunosensor. RSC Adv 2020; 10:1838-1847. [PMID: 35494561 PMCID: PMC9047983 DOI: 10.1039/c9ra09083e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/18/2019] [Indexed: 12/17/2022] Open
Abstract
In this study an impedimetric immunosensor was developed in order to determine ciprofloxacin (CIP) in wastewater samples, an emergent contaminant widely found in wastewater. To achieve this, an anti-ciprofloxacin antibody was immobilized on the surface of a printed carbon electrode. Then, the developed immunosensor was applied in wastewater samples from Université Laval residences (Québec, Canada) through the load transfer resistance (Rct) using [Fe(CN)6]3−/4− as a redox probe, and the average CIP concentration was found to be 2.90 × 10−4 μg mL−1. The observed Rct changes presented a linear relationship from CIP concentrations of 10−5 to 1.0 μg mL−1, with detection and quantification limits of 2.50 × 10−6 and 7.90 × 10−6 μg mL−1, respectively. The immunosensor presented high selectivity and repeatability, as well as a good recovery rate in wastewater samples (97%). Significant interference with other compounds was not observed. The proposed method requires only 30 μL of sample without the use of organic solvents or preceding sample preparation and/or extraction techniques. Moreover, the method is fast: only 20 min of incubation followed by 2 min of analysis time was sufficient to obtain the CIP concentration. The method's estimated cost is U$ 2.00 per sample. In this study an impedimetric immunosensor was developed in order to determine ciprofloxacin (CIP) in wastewater samples, an emergent contaminant widely found in wastewater samples.![]()
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Affiliation(s)
| | | | - Maria Valnice Boldrin Zanoni
- UNESP
- National Institute for Alternative Technologies of Detection
- Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM)
- Institute of Chemistry
- São Paulo State University – UNESP
| | - Marcelo Nalin
- Institute of Chemistry
- São Paulo State University (UNESP)
- Araraquara
- Brazil
| | - Paulo Clairmont Feitosa de Lima Gomes
- UNESP
- National Institute for Alternative Technologies of Detection
- Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM)
- Institute of Chemistry
- São Paulo State University – UNESP
| | - Younès Messaddeq
- Center for Optics, Photonics and Laser (COPL)
- Université Laval
- Quebec
- Canada
- Institute of Chemistry
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29
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Aydın EB, Aydın M, Sezgintürk MK. The development of an ultra-sensitive electrochemical immunosensor using a PPyr-NHS functionalized disposable ITO sheet for the detection of interleukin 6 in real human serums. NEW J CHEM 2020. [DOI: 10.1039/d0nj03183f] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A label-free biosensor based on poly(pyrrole N-hydroxy succinimide) polymer modified ITO electrode was developed for sensitive detection of interleukin 6 antigen. Under optimized conditions, it had a wide detection range (0.03–22.5 pg mL−1).
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Affiliation(s)
- Elif Burcu Aydın
- Namık Kemal University
- Scientific and Technological Research Center
- Tekirdağ
- Turkey
| | - Muhammet Aydın
- Namık Kemal University
- Scientific and Technological Research Center
- Tekirdağ
- Turkey
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30
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Aydın M. A sensitive and selective approach for detection of IL 1α cancer biomarker using disposable ITO electrode modified with epoxy-substituted polythiophene polymer. Biosens Bioelectron 2019; 144:111675. [DOI: 10.1016/j.bios.2019.111675] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/26/2019] [Accepted: 09/03/2019] [Indexed: 01/05/2023]
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31
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Aydın EB, Aydın M, Sezgintürk MK. Ultrasensitive determination of cadherin-like protein 22 with a label-free electrochemical immunosensor using brush type poly(thiophene-g-glycidylmethacrylate) modified disposable ITO electrode. Talanta 2019; 200:387-397. [DOI: 10.1016/j.talanta.2019.03.082] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/18/2019] [Accepted: 03/21/2019] [Indexed: 10/27/2022]
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Aydın M, Aydın EB, Sezgintürk MK. A Highly Selective Poly(thiophene)‐graft‐Poly(methacrylamide) Polymer Modified ITO Electrode for Neuron Specific Enolase Detection in Human Serum. Macromol Biosci 2019; 19:e1900109. [DOI: 10.1002/mabi.201900109] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/31/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Muhammet Aydın
- Tekirdagˇ Namık Kemal UniversityScientific and Technological Research Center Tekirdagˇ 59000 Turkey
| | - Elif Burcu Aydın
- Tekirdagˇ Namık Kemal UniversityScientific and Technological Research Center Tekirdagˇ 59000 Turkey
| | - Mustafa Kemal Sezgintürk
- Çanakkale Onsekiz Mart UniversityFaculty of Engineering, Bioengineering Department Çanakkale 17000 Turkey
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Abstract
Immunosensors are compact tools on which antibody and antigen interactions are formed. The specific interaction between antibody and antigen is detected by using a transducer and an electrical signal is measured. This specific interaction between these molecules makes immunosensor very attractive for several applications in different fields. Electrochemical immunosensors are successful devices in selective and sensitive detection of several analytes. Electrochemical transducing methods such as voltammetric, potentiometric, conductometric or impedimetric have been utilized in different applications due to their excellent properties such as being low-cost, sensitivity and simplicity. In this chapter, the fundamentals of electrochemical immunosensors are summarized and different applications in food, environmental and clinical analyses are investigated and discussed.
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Affiliation(s)
- Elif Burcu Aydin
- Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey.
| | - Muhammet Aydin
- Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey
| | - Mustafa Kemal Sezgintürk
- Çanakkale Onsekiz Mart University, Faculty of Engineering, Bioengineering Department, Çanakkale, Turkey
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Zhang R, Rejeeth C, Xu W, Zhu C, Liu X, Wan J, Jiang M, Qian K. Label-Free Electrochemical Sensor for CD44 by Ligand-Protein Interaction. Anal Chem 2019; 91:7078-7085. [PMID: 30942566 DOI: 10.1021/acs.analchem.8b05966] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ru Zhang
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
| | - Chandrababu Rejeeth
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
| | - Wei Xu
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
| | - Chuanying Zhu
- Department of Oncology, Xinhua Hospital, Shanghai Jiao Tong University Medical School, Shanghai 200092, P. R. China
| | - Xiyuan Liu
- Department of Oncology, Xinhua Hospital, Shanghai Jiao Tong University Medical School, Shanghai 200092, P. R. China
| | - Jingjing Wan
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, P. R. China
| | - Mawei Jiang
- Department of Oncology, Xinhua Hospital, Shanghai Jiao Tong University Medical School, Shanghai 200092, P. R. China
| | - Kun Qian
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University, Shanghai 200030, P. R. China
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35
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Yáñez-Sedeño P, Campuzano S, Pingarrón JM. Pushing the limits of electrochemistry toward challenging applications in clinical diagnosis, prognosis, and therapeutic action. Chem Commun (Camb) 2019; 55:2563-2592. [PMID: 30688320 DOI: 10.1039/c8cc08815b] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Constant progress in the identification of biomarkers at different molecular levels in samples of different natures, and the need to conduct routine analyses, even in limited-resource settings involving simple and short protocols, are examples of the growing current clinical demands not satisfied by conventional available techniques. In this context, the unique features offered by electrochemical biosensors, including affordability, real-time and reagentless monitoring, simple handling and portability, and versatility, make them especially interesting for adaptation to the increasingly challenging requirements of current clinical and point-of-care (POC) diagnostics. This has allowed the continuous development of strategies with improved performance in the clinical field that were unthinkable just a few years ago. After a brief introduction to the types and characteristics of clinically relevant biomarkers/samples, requirements for their analysis, and currently available methodologies, this review article provides a critical discussion of the most important developments and relevant applications involving electrochemical biosensors reported in the last five years in response to the demands of current diagnostic, prognostic, and therapeutic actions related to high prevalence and high mortality diseases and disorders. Special attention is paid to the rational design of surface chemistry and the use/modification of state-of-the-art nanomaterials to construct electrochemical bioscaffolds with antifouling properties that can be applied to the single or multiplex determination of biomarkers of accepted or emerging clinical relevance in particularly complex clinical samples, such as undiluted liquid biopsies, whole cells, and paraffin-embedded tissues, which have scarcely been explored using conventional techniques or electrochemical biosensing. Key points guiding future development, challenges to be addressed to further push the limits of electrochemical biosensors towards new challenging applications, and their introduction to the market are also discussed.
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Affiliation(s)
- P Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
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Yılmaz N, Aydın EB, Sezgintürk MK. An epoxysilane modified indium tin oxide electrode for the determination of PAK 2: Application in human serum samples. Anal Chim Acta 2019; 1062:68-77. [PMID: 30947997 DOI: 10.1016/j.aca.2019.02.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/04/2019] [Accepted: 02/09/2019] [Indexed: 12/27/2022]
Abstract
In this study, a sensitive immunosensor was developed for the first time for p21-activated kinase 2 (PAK 2) detection. In the design of the immunosensor, 3-glycidoxypropyltrimethoxysilane (GPTMS) was utilized as an ITO electrode modification material for anti-PAK 2 antibody immobilization. This molecule had epoxy group, which was reactive to amino groups of antibodies. Anti-PAK 2 antibodies were also used as biomolecules for sensitive interaction for PAK 2 antigen. In the presence of PAK 2 antigens, high impedance signal was observed when the process followed by using Electrochemical Impedance Spectroscopy technique (EIS). Apart from EIS technique, Cyclic Voltammetry (CV), Square Wave Voltammetry (SWV) and Single Frequency Impedance (SFI) techniques were utilized. Microscopic surface characterizations of immunosensor fabrication steps were performed by using Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM). The immunosensor exhibited good sensitivity and selectivity for PAK 2 antigen detection. A linear calibration curve between EIS response and PAK 2 concentration was obtained in the range of 0.005-0.075 pg/mL with the detection limit of 1.5 fg/mL. It had good repeatability, excellent reproducibility and high stability. Additionally, this immunosensor can be reused by simple application protocol. Furthermore, it had good recovery for PAK 2 antigen detection in human serum samples. The good recovery illustrated that the developed immunosensor was a promising tool for PAK 2 detection in practical applications.
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Affiliation(s)
- Nergiz Yılmaz
- Tekirdağ Namık Kemal University, Faculty or Arts and Sciences, Chemistry Department, Tekirdag, Turkey
| | - Elif Burcu Aydın
- Tekirdağ Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey
| | - Mustafa Kemal Sezgintürk
- Çanakkale Onsekiz Mart University, Faculty of Engineering, Bioengineering Department, Çanakkale, Turkey.
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37
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Aydın M, Aydın EB, Sezgintürk MK. Electrochemical immunosensor for CDH22 biomarker based on benzaldehyde substituted poly(phosphazene) modified disposable ITO electrode: A new fabrication strategy for biosensors. Biosens Bioelectron 2019; 126:230-239. [DOI: 10.1016/j.bios.2018.10.051] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/23/2018] [Accepted: 10/24/2018] [Indexed: 12/20/2022]
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38
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Ito Y, Okuda-Shimazaki J, Tsugawa W, Loew N, Shitanda I, Lin CE, La Belle J, Sode K. Third generation impedimetric sensor employing direct electron transfer type glucose dehydrogenase. Biosens Bioelectron 2019; 129:189-197. [PMID: 30721794 DOI: 10.1016/j.bios.2019.01.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 12/12/2018] [Accepted: 01/02/2019] [Indexed: 01/30/2023]
Abstract
Faradaic electrochemical impedance spectroscopy (faradaic EIS) is an attractive measurement principle for biosensors. However, there have been no reports on sensors employing direct electron transfer (DET)-type redox enzymes based on faradaic EIS principle. In this study, we have attempted to construct the 3rd-generation faradaic enzyme EIS sensor, which used DET-type flavin adenine dinucleotide (FAD) dependent glucose dehydrogenase (GDH) complex, to elucidate its characteristic properties as well as to investigate its potential application as the future immunosensor platform. The gold disk electrodes (GDEs) with DET-type FADGDH prepared using self-assembled monolayer (SAM) showed the glucose concentration dependent impedance change, which was confirmed by the change in the charge transfer resistance (Rct). The Δ(1/Rct) values were also affected by DC bias potential and the length of SAM. Based on the Nyquist plot and Bode plot simulations, glucose sensing by imaginary impedance monitoring under fixed frequency (5 mHz) was carried out, revealing the higher sensitivity at low glucose concentration with wider linear range (0.02-0.2 mM). Considering this high sensitivity toward glucose, the 3rd-generation faradaic enzyme EIS sensor would provide alternative platform for future impedimetric immunosensing system, which does not use redox probe.
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Affiliation(s)
- Yuka Ito
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Junko Okuda-Shimazaki
- Ultizyme International Ltd., 1-13-16, Minami, Meguro, Tokyo 152-0013, Japan; Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 and North Carolina State University, Raleigh, NC 27695, USA
| | - Wakako Tsugawa
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Noya Loew
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 and North Carolina State University, Raleigh, NC 27695, USA
| | - Isao Shitanda
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Chi-En Lin
- School of Biological and Health System Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, P.O.Box 879709, Tempe, AZ 85287-9719, USA
| | - Jeffrey La Belle
- School of Biological and Health System Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, P.O.Box 879709, Tempe, AZ 85287-9719, USA
| | - Koji Sode
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan; Ultizyme International Ltd., 1-13-16, Minami, Meguro, Tokyo 152-0013, Japan; Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 and North Carolina State University, Raleigh, NC 27695, USA.
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Aydın EB, Aydın M, Sezgintürk MK. Electrochemical immunosensor based on chitosan/conductive carbon black composite modified disposable ITO electrode: An analytical platform for p53 detection. Biosens Bioelectron 2018; 121:80-89. [DOI: 10.1016/j.bios.2018.09.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 08/26/2018] [Accepted: 09/01/2018] [Indexed: 10/28/2022]
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40
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A disposable and ultrasensitive ITO based biosensor modified by 6-phosphonohexanoic acid for electrochemical sensing of IL-1β in human serum and saliva. Anal Chim Acta 2018; 1039:41-50. [DOI: 10.1016/j.aca.2018.07.055] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 01/11/2023]
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41
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Xiao P, Ke Y, Lu J, Huang Z, Zhu X, Wei B, Huang L. Photoluminescence immunoassay based on grapefruit peel-extracted carbon quantum dots encapsulated into silica nanospheres for p53 protein. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2018.08.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Aydın M, Aydın EB, Sezgintürk MK. A highly selective electrochemical immunosensor based on conductive carbon black and star PGMA polymer composite material for IL-8 biomarker detection in human serum and saliva. Biosens Bioelectron 2018; 117:720-728. [DOI: 10.1016/j.bios.2018.07.010] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 07/04/2018] [Accepted: 07/09/2018] [Indexed: 01/20/2023]
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Bertok T, Lorencova L, Chocholova E, Jane E, Vikartovska A, Kasak P, Tkac J. Electrochemical Impedance Spectroscopy Based Biosensors: Mechanistic Principles, Analytical Examples and Challenges towards Commercialization for Assays of Protein Cancer Biomarkers. ChemElectroChem 2018. [DOI: 10.1002/celc.201800848] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tomas Bertok
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Lenka Lorencova
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Erika Chocholova
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Eduard Jane
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Alica Vikartovska
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
| | - Peter Kasak
- Center for Advanced MaterialsQatar University Doha 2713 Qatar
| | - Jan Tkac
- Department of Glycobiotechnology Institution of ChemistrySlovak Academy of Sciences Dubravska cesta 9 845 38 Bratislava Slovakia
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44
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Aydın EB, Sezgintürk MK. An impedimetric immunosensor for highly sensitive detection of IL-8 in human serum and saliva samples: A new surface modification method by 6-phosphonohexanoic acid for biosensing applications. Anal Biochem 2018; 554:44-52. [PMID: 29902421 DOI: 10.1016/j.ab.2018.05.030] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/27/2018] [Accepted: 05/30/2018] [Indexed: 11/30/2022]
Abstract
In this study, we fabricated a sensitive and label-free impedimetric immunosensor based on 6-phosphonohexanoic acid (PHA) modified ITO electrode for detection of interleukin-8 (IL-8) in human serum and saliva. PHA was first employed to cancer biomarker sensing platform. Anti-IL-8 antibody was used as a biorecognition element and the detection principle of this immunosensor was based on monitoring specific interaction between anti-IL-8 antibody and IL-8 antigen. The morphological characterization of each electrode modification step was analyzed by scanning electron microscopy (SEM), SEM-energy dispersive X-ray spectroscopy (EDX) and atomic force microscopy (AFM) while electrochemical characterization was performed by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and single frequency impedance (SFI) techniques. Moreover, the antibody immobilization on the electrode surface was proved Fourier-transform infrared spectroscopy (FTIR) and Raman Spectroscopy. This proposed impedimetric immunosensor exhibited good performances with a wide linear in the range from 0.02 pg/mL to 3 pg/mL as well as a relative low detection limit of 6 fg/mL. The impedimetric immunosensor had a good specificity, stability and reproducibility. This study proved that PHA was a suitable interface material to fabricate an electrochemical biosensor.
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Affiliation(s)
- Elif Burcu Aydın
- Namık Kemal University, Scientific and Technological Research Center, Tekirdağ, Turkey.
| | - Mustafa Kemal Sezgintürk
- Çanakkale Onsekiz Mart University, Faculty of Engineering, Bioengineering Department, Çanakkale, Turkey
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