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Lafi Z, Gharaibeh L, Nsairat H, Asha N, Alshaer W. Aptasensors: employing molecular probes for precise medical diagnostics and drug monitoring. Bioanalysis 2023; 15:1439-1460. [PMID: 37847048 DOI: 10.4155/bio-2023-0141] [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] [Indexed: 10/18/2023] Open
Abstract
Accurate detection and monitoring of therapeutic drug levels are vital for effective patient care and treatment management. Aptamers, composed of single-stranded DNA or RNA molecules, are integral components of biosensors designed for both qualitative and quantitative detection of biological samples. Aptasensors play crucial roles in target identification, validation, detection of drug-target interactions and screening potential of drug candidates. This review focuses on the pivotal role of aptasensors in early disease detection, particularly in identifying biomarkers associated with various diseases such as cancer, infectious diseases and cardiovascular disorders. Aptasensors have demonstrated exceptional potential in enhancing disease diagnostics and monitoring therapeutic drug levels. Aptamer-based biosensors represent a transformative technology in the field of healthcare, enabling precise diagnostics, drug monitoring and disease detection.
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Affiliation(s)
- Zainab Lafi
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Lobna Gharaibeh
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Hamdi Nsairat
- Pharmacological & Diagnostic Research Center, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, 19328, Jordan
| | - Nisreen Asha
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
| | - Walhan Alshaer
- Cell Therapy Center, The University of Jordan, Amman, 11942, Jordan
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Khan S, Cho WC, Sepahvand A, Haji Hosseinali S, Hussain A, Nejadi Babadaei MM, Sharifi M, Falahati M, Jaragh-Alhadad LA, Ten Hagen TLM, Li X. Electrochemical aptasensor based on the engineered core-shell MOF nanostructures for the detection of tumor antigens. J Nanobiotechnology 2023; 21:136. [PMID: 37101280 PMCID: PMC10131368 DOI: 10.1186/s12951-023-01884-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 04/06/2023] [Indexed: 04/28/2023] Open
Abstract
It is essential to develop ultrasensitive biosensors for cancer detection and treatment monitoring. In the development of sensing platforms, metal-organic frameworks (MOFs) have received considerable attention as potential porous crystalline nanostructures. Core-shell MOF nanoparticles (NPs) have shown different diversities, complexities, and biological functionalities, as well as significant electrochemical (EC) properties and potential bio-affinity to aptamers. As a result, the developed core-shell MOF-based aptasensors serve as highly sensitive platforms for sensing cancer biomarkers with an extremely low limit of detection (LOD). This paper aimed to provide an overview of different strategies for improving selectivity, sensitivity, and signal strength of MOF nanostructures. Then, aptamers and aptamers-modified core-shell MOFs were reviewed to address their functionalization and application in biosensing platforms. Additionally, the application of core-shell MOF-assisted EC aptasensors for detection of several tumor antigens such as prostate-specific antigen (PSA), carbohydrate antigen 15-3 (CA15-3), carcinoembryonic antigen (CEA), human epidermal growth factor receptor-2 (HER2), cancer antigen 125 (CA-125), cytokeratin 19 fragment (CYFRA21-1), and other tumor markers were discussed. In conclusion, the present article reviews the advancement of potential biosensing platforms toward the detection of specific cancer biomarkers through the development of core-shell MOFs-based EC aptasensors.
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Affiliation(s)
- Suliman Khan
- Medical Research Center, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Medical Lab Technology, The University of Haripur, Haripur, Pakistan
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China
| | - Afrooz Sepahvand
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sara Haji Hosseinali
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Arif Hussain
- School of Life Sciences, Manipal Academy of Higher Education, Dubai, United Arab Emirates
| | - Mohammad Mahdi Nejadi Babadaei
- Department of Molecular Genetics, Faculty of Biological Science, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Majid Sharifi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
- Depatment of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mojtaba Falahati
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands.
- Nanomedicine Innovation Center Erasmus (NICE), Erasmus MC, Rotterdam, The Netherlands.
| | | | - Timo L M Ten Hagen
- Precision Medicine in Oncology (PrMiO), Department of Pathology, Erasmus MC Cancer Institute, Erasmus MC, Rotterdam, The Netherlands.
- Nanomedicine Innovation Center Erasmus (NICE), Erasmus MC, Rotterdam, The Netherlands.
| | - Xin Li
- Department of Neurology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Li D, Fang C, Li H, Tu Y. Fluorescence/electrochemiluminescence approach for instant detection of glycated hemoglobin index. Anal Biochem 2022; 659:114958. [PMID: 36273622 DOI: 10.1016/j.ab.2022.114958] [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: 08/01/2022] [Revised: 10/02/2022] [Accepted: 10/14/2022] [Indexed: 12/14/2022]
Abstract
The percentage of glycated hemoglobin (HbA1c) in total hemoglobin (Hb) is an important index for the diagnosis of Type II diabetes (T2D) because it reflects the long-term glucose level in blood. Herein, employing a one-pot co-reduction approach using glutathione (GSH) as structure-directing agent, a cluster-like AuAg nanoparticle (AuAg NPs) material was synthesized, therefore an electrochemiluminescence (ECL) aptamer-sensor for HbA1c detection was developed based on functionalized electrode with this material. Meanwhile, the quantitative determination of total Hb was realized based on the quenching effect of Hb on the fluorescence (FL) of luminol. Under compatible conditions, the results of both indexes can be satisfactorily acquired. This multimodal detection system has a good linear response toward Hb from 0.1 to 2.5 μM and HbA1c from 0.005 to 0.5 μM. The blood test proves this strategy is capable of accurate Hb and HbA1c detection, thus to obtain the percentage of HbA1c in total Hb (HbA1c%), which has the potential application for clinical diagnosis of diabetes mellitus.
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Affiliation(s)
- Dongning Li
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, 215123, PR China
| | - Chen Fang
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, PR China
| | - Huiling Li
- The First Affiliated Hospital, Nursing College, Soochow University, Suzhou, 215006, PR China.
| | - Yifeng Tu
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, 215123, PR China.
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Xu Y, Zhang Y, Li N, Yang M, Xiang T, Huo D, Qiu Z, Yang L, Hou C. An ultra-sensitive dual-signal ratiometric electrochemical aptasensor based on functionalized MOFs for detection of HER2. Bioelectrochemistry 2022; 148:108272. [DOI: 10.1016/j.bioelechem.2022.108272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/31/2022] [Accepted: 09/15/2022] [Indexed: 11/26/2022]
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Randviir EP, Banks CE. A review of electrochemical impedance spectroscopy for bioanalytical sensors. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4602-4624. [PMID: 36342043 DOI: 10.1039/d2ay00970f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Electrochemical impedance spectroscopy (EIS) is a powerful technique for both quantitative and qualitative analysis. This review uses a systematic approach to examine how electrodes are tailored for use in EIS-based applications, describing the chemistries involved in sensor design, and discusses trends in the use of bio-based and non-bio-based electrodes. The review finds that immunosensors are the most prevalent sensor strategy that employs EIS as a quantification technique for target species. The review also finds that bio-based electrodes, though capable of detecting small molecules, are most applicable for the detection of complex molecules. Non-bio-based sensors are more often employed for simpler molecules and less often have applications for complex systems. We surmise that EIS has advanced in terms of electrode designs since our last review on the subject, although there are still inconsistencies in terms of equivalent circuit modelling for some sensor types. Removal of ambiguity from equivalent circuit models may help advance EIS as a choice detection method, allowing for lower limits of detection than traditional electrochemical methods such as voltammetry or amperometry.
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Affiliation(s)
- Edward P Randviir
- Department of Natural Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, Lancs, UK.
| | - Craig E Banks
- Department of Natural Sciences, Faculty of Science and Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, Lancs, UK.
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Erkmen C, Tığ GA, Uslu B. Nanomaterial-based sandwich-type electrochemical aptasensor platform for sensitive voltammetric determination of leptin. Mikrochim Acta 2022; 189:396. [PMID: 36173490 DOI: 10.1007/s00604-022-05487-z] [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: 06/28/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
A sandwich-type electrochemical aptasensor was designed for sensitive detection of leptin in biological samples, including human serum and human plasma. The developed aptasensor was produced by electrodeposition of gold nanoparticles on a screen-printed electrode modified with zinc oxide nanoparticles. The synergy effect of zinc oxide and gold nanoparticles improved the electrocatalytic activity of the aptasensor. The obtained high surface area allowed more aptamer molecules to be loaded on the electrode surface. Signal amplification significantly increases the detection sensitivity of a developed biosensor. Although the use of nanomaterials is the most preferred detection tool for this purpose, as an alternative, enzyme-catalyzed signal amplification is widely used in the construction of a biosensor due to its specificity and high catalytic efficiency. Therefore, both nanomaterial-supported and an alkaline phosphatase-based aptasensor design were developed, which can produce in situ electroactive product by enzymatic hydrolysis of the inactive substrate to achieve a higher signal-to-background ratio. Under optimal conditions, the developed aptasensor exhibited a wide linear concentration range from 0.01 pg mL-1 to 100.0 pg mL-1 with a detection limit of 0.0035 pg mL-1. While the developed aptasensor provided excellent selectivity in the presence of some interfering compounds, it possessed outstanding reproducibility and stability. In addition, the developed aptasensor has been applied with good recoveries in the range 96.31 to 108.79% in human serum and plasma samples. In conclusion, all the obtained results showed the feasibility of the developed aptasensor for practical applications.
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Affiliation(s)
- Cem Erkmen
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560, Ankara, Turkey.,The Graduate School of Health Sciences, Ankara University, 06110, Ankara, Turkey
| | - Gözde Aydoğdu Tığ
- Department of Chemistry, Faculty of Science, Ankara University, 06100, Ankara, Turkey.
| | - Bengi Uslu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, 06560, Ankara, Turkey.
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Salahandish R, Jalali P, Tabrizi HO, Hyun JE, Haghayegh F, Khalghollah M, Zare A, Berenger BM, Niu YD, Ghafar-Zadeh E, Sanati-Nezhad A. A compact, low-cost, and binary sensing (BiSense) platform for noise-free and self-validated impedimetric detection of COVID-19 infected patients. Biosens Bioelectron 2022; 213:114459. [PMID: 35728365 PMCID: PMC9195351 DOI: 10.1016/j.bios.2022.114459] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 06/06/2022] [Indexed: 11/19/2022]
Abstract
Electrochemical immuno-biosensors are one of the most promising approaches for accurate, rapid, and quantitative detection of protein biomarkers. The two-working electrode strip is employed for creating a self-supporting system, as a tool for self-validating the acquired results for added reliability. However, the realization of multiplex electrochemical point-of-care testing (ME-POCT) requires advancement in portable, rapid reading, easy-to-use, and low-cost multichannel potentiostat readers. The combined multiplex biosensor strips and multichannel readers allow for suppressing the possible complex matrix effect or ultra-sensitive detection of different protein biomarkers. Herein, a handheld binary-sensing (BiSense) bi-potentiostat was developed to perform electrochemical impedance spectroscopy (EIS)-based signal acquisition from a custom-designed dual-working-electrode immuno-biosensor. BiSense employs a commercially available microcontroller and out-of-shelf components, offering the cheapest yet accurate and reliable time-domain impedance analyzer. A specific electrical board design was developed and customized for impedance signal analysis of SARS-CoV-2 nucleocapsid (N)-protein biosensor in spiked samples and alpha variant clinical nasopharyngeal (NP) swab samples. BiSense showed limit-of-detection (LoD) down to 56 fg/mL for working electrode 1 (WE1) and 68 fg/mL for WE2 and reported with a dynamic detection range of 1 pg/mL to 10 ng/mL for detection of N-protein in spiked samples. The dual biosensing of N-protein in this work was used as a self-validation of the biosensor. The low-cost (∼USD$40) BiSense bi-potentiostat combined with the immuno-biosensors successfully detected COVID-19 infected patients in less than 10 min, with the BiSense reading period shorter than 1.5 min, demonstrating its potential for the realization of ME-POCTs for rapid and hand-held diagnosis of infections.
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Affiliation(s)
- Razieh Salahandish
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada; Department of Mechanical and Manufacturing Engineering, University of Calgary, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Pezhman Jalali
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Hamed Osouli Tabrizi
- Biologically Inspired Sensors and Actuators (BioSA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J1P3, Canada
| | - Jae Eun Hyun
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Fatemeh Haghayegh
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Mahmood Khalghollah
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada; Department of Electrical and Software Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Azam Zare
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Byron M Berenger
- Department of Pathology and Laboratory Medicine, University of Calgary, 3535 Research Rd. Calgary, Alberta, T2L 1Y1, Canada; Alberta Public Health Laboratory, Alberta Precision Laboratories, 3330 Hospital Drive, Calgary, Alberta, T2N 4W4, Canada
| | - Yan Dong Niu
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
| | - Ebrahim Ghafar-Zadeh
- Biologically Inspired Sensors and Actuators (BioSA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J1P3, Canada.
| | - Amir Sanati-Nezhad
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada; Department of Mechanical and Manufacturing Engineering, University of Calgary, University of Calgary, Calgary, Alberta, T2N 1N4, Canada; Biomedical Engineering Graduate Program, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
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Aptamer versus antibody as probes for the impedimetric biosensor for human epidermal growth factor receptor. J Inorg Biochem 2022; 230:111764. [DOI: 10.1016/j.jinorgbio.2022.111764] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 12/24/2022]
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Arshavsky‐Graham S, Heuer C, Jiang X, Segal E. Aptasensors versus immunosensors-Which will prevail? Eng Life Sci 2022; 22:319-333. [PMID: 35382545 PMCID: PMC8961048 DOI: 10.1002/elsc.202100148] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/11/2022] Open
Abstract
Since the invention of the first biosensors 70 years ago, they have turned into valuable and versatile tools for various applications, ranging from disease diagnosis to environmental monitoring. Traditionally, antibodies have been employed as the capture probes in most biosensors, owing to their innate ability to bind their target with high affinity and specificity, and are still considered as the gold standard. Yet, the resulting immunosensors often suffer from considerable limitations, which are mainly ascribed to the antibody size, conjugation chemistry, stability, and costs. Over the past decade, aptamers have emerged as promising alternative capture probes presenting some advantages over existing constraints of immunosensors, as well as new biosensing concepts. Herein, we review the employment of antibodies and aptamers as capture probes in biosensing platforms, addressing the main aspects of biosensor design and mechanism. We also aim to compare both capture probe classes from theoretical and experimental perspectives. Yet, we highlight that such comparisons are not straightforward, and these two families of capture probes should not be necessarily perceived as competing but rather as complementary. We, thus, elaborate on their combined use in hybrid biosensing schemes benefiting from the advantages of each biorecognition element.
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Affiliation(s)
- Sofia Arshavsky‐Graham
- Faculty of Biotechnology and Food EngineeringTechnion ‐ Israel Institute of TechnologyHaifaIsrael
| | - Christopher Heuer
- Faculty of Biotechnology and Food EngineeringTechnion ‐ Israel Institute of TechnologyHaifaIsrael
- Institute of Technical ChemistryLeibniz University HannoverHannoverGermany
| | - Xin Jiang
- Faculty of Biotechnology and Food EngineeringTechnion ‐ Israel Institute of TechnologyHaifaIsrael
| | - Ester Segal
- Faculty of Biotechnology and Food EngineeringTechnion ‐ Israel Institute of TechnologyHaifaIsrael
- Russell Berrie Nanotechnology InstituteTechnion ‐ Israel Institute of TechnologyHaifaIsrael
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Nxele SR, Nkhahle R, Nyokong T. The synergistic effects of coupling Au nanoparticles with an alkynyl Co(II) phthalocyanine on the detection of prostate specific antigen. Talanta 2022; 237:122948. [PMID: 34736674 DOI: 10.1016/j.talanta.2021.122948] [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: 08/17/2021] [Revised: 10/05/2021] [Accepted: 10/08/2021] [Indexed: 10/20/2022]
Abstract
Prostate specific antigen (PSA) aptasensors are fabricated using a novel asymmetrically substituted Co phthalocyanine (CoPc), gold nanoparticles (AuNPs) and PSA-specific antigen. The fabricated aptasensors are: GCE-AuNPs-Aptamer, GCE@CoPc-Aptamer and GCE-AuNPs@CoPc-Aptamer (GCE = glassy carbon electrode). The fabricated sensors are characterized at each modification step to monitor the changes occurring at the sensor surface. Concentration studies were carried out using differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS) to determine detection limits. All the fabricated aptasensors were found to be highly specific and selective but the GCE-AuNPs@CoPc-Aptamer nanoconjugate performed the best. The aptasensors were also tested in spiked serum samples and detection limits, as well as % recoveries were determined. The results obtained showed that the GCE-AuNPs@CoPc-Aptamer has the potential to be used for clinical studies as the results agree with those obtained for detection of PSA in buffer.
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Affiliation(s)
- Siphesihle Robin Nxele
- Institute for Nanotechnology Innovation, Chemistry Department, Rhodes University, Grahamstown, 6140, South Africa
| | - Reitumetse Nkhahle
- Institute for Nanotechnology Innovation, Chemistry Department, Rhodes University, Grahamstown, 6140, South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Chemistry Department, Rhodes University, Grahamstown, 6140, South Africa.
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Design and application of molecularly imprinted Polypyrrole/Platinum nanoparticles modified platinum sensor for the electrochemical detection of Vardenafil. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106771] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rudewicz-Kowalczyk D, Grabowska I. Detection of Low Density Lipoprotein-Comparison of Electrochemical Immuno- and Aptasensor. SENSORS 2021; 21:s21227733. [PMID: 34833808 PMCID: PMC8620298 DOI: 10.3390/s21227733] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 12/24/2022]
Abstract
An elevated level of low density lipoprotein (LDL) can lead to the cardiovascular system-related diseases, such as atherosclerosis and others. Therefore, fast, simple, and accurate methods for LDL detection are very desirable. In this work, the parameters characterizing the electrochemical immuno-and aptasensor for detection of LDL have been compared for the first time. An immunosensor has been designed, for which the anti-apolipoprotein B-100 antibody was covalently attached to 4-aminothiophenol (4-ATP) on the surface of the gold electrode. In the case of an aptasensor, the gold electrode was modified in a mixture of ssDNA aptamer specific for LDL modified with –SH group and 6-mercaptohexanol. Square-wave voltammetry has been used for detection of LDL in PBS containing redox active marker, [Fe(CN)6]3−/4−. Our results show the linear dependence of [Fe(CN)6]3−/4− redox signal changes on LDL concentration for both biosensors, in the range from 0.01 ng/mL to 1.0 ng/mL. The limit of detection was 0.31 and 0.25 ng/mL, for immuno- and aptasensor, respectively. Whereas slightly better selectivity toward human serum albumin (HSA), high density lipoprotein (HDL), and malondialdehyde modified low density lipoprotein (MDA-LDL) has been observed for aptasensor. Moreover, the other components of human blood serum samples did not influence aptasensor sensitivity.
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Abedi R, Bakhsh Raoof J, Bagheri Hashkavayi A, Asghary M. Highly sensitive and label-free electrochemical biosensor based on gold nanostructures for studying the interaction of prostate cancer gene sequence with epirubicin anti-cancer drug. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106668] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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A novel affinity peptide-antibody sandwich electrochemical biosensor for PSA based on the signal amplification of MnO 2-functionalized covalent organic framework. Talanta 2021; 233:122520. [PMID: 34215135 DOI: 10.1016/j.talanta.2021.122520] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/05/2021] [Accepted: 05/11/2021] [Indexed: 12/19/2022]
Abstract
This work describes a novel affinity peptide-antibody sandwich electrochemical strategy for the ultrasensitive detection of prostate-specific antigen (PSA). Herein, polydopamine-coated boron-doped carbon nitride (Au@PDA@BCN) was synthesized and used as a sensing platform to anchor gold nanoparticles and immobilize primary antibody. Meanwhile, AuPt metallic nanoparticle and manganese dioxide (MnO2)-functionalized covalent organic frameworks (AuPt@MnO2@COF) was facilely synthesized to serve as a nanocatalyst and ordered nanopore for the enrichment and amplification of signal molecules (methylene blue, MB). PSA affinity peptide was bound to AuPt@MnO2@COF to form Pep/MB/AuPt@MnO2@COF nanocomposites (probe). The peptide-PSA-antibody sandwich biosensor was constructed, and the redox signal of MB was measured with the existence of PSA. The fabricated sensor exhibited a linear response (0.00005-10 ng mL-1) with a low detection limit of 16.7 fg mL-1 under the optimum condition. Additionally, the sensor showed an excellent selectivity, ideal repeatability, and good stability for PSA detection in real samples. Furthermore, the porous structure of COF can enrich more MB molecules and increase the sensitivity of the biosensor. This study provides an efficient and ultrasensitive strategy for PSA detection and broadens the use of organic/inorganic porous nanocomposite in biosensing.
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Tran HL, Darmanto W, Doong RA. Electrochemical immunosensor for ultra-sensitive detection of attomolar prostate specific antigen with sulfur-doped graphene quantum dot@gold nanostar as the probe. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138700] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Wan H, Cao X, Liu M, Zhang F, Sun C, Xia J, Wang Z. Aptamer and bifunctional enzyme co-functionalized MOF-derived porous carbon for low-background electrochemical aptasensing. Anal Bioanal Chem 2021; 413:6303-6312. [PMID: 34396471 DOI: 10.1007/s00216-021-03585-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/22/2021] [Accepted: 07/27/2021] [Indexed: 10/20/2022]
Abstract
To improve the efficiency of aptasensors, a signal amplification strategy by coupling tyrosinase (Tyr)-triggered redox cycling with nanoscale porous carbon (NCZIF) has been proposed. The NCZIF was obtained by calcining ZIF-8 crystals in an inert atmosphere. It had high surface areas, great biocompatibility, and ease of functionalization, which was beneficial for immobilizing sufficient Tyr and aptamer covalently. When the target prostate-specific antigen (PSA) was present, the NCZIF functionalized with Tyr and an aptamer bound to the aptamer-modified Au electrode specifically through the sandwich structure. Then, Tyr acted to oxidize the electroinactive phenol, which led to low-background signal, in the substrate to electroactive catechol, and triggered the redox cycling under the action of NADH. The low detection limit of the proposed electrochemical aptasensor for PSA was 0.01 ng mL-1, and the wide detection range was from 0.01 to 50 ng mL-1. The use of ZIF-8 derived porous carbon and Tyr-triggered redox cycling system provided a promising solution for the development of simple, rapid, reliable, and low-background aptasensing methods, which had great potential in the field of disease diagnosis and biomedicine.
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Affiliation(s)
- Hui Wan
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Xiyue Cao
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Min Liu
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Feifei Zhang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
| | - Chao Sun
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Rd, Qingdao, 266101, Shandong, China.
| | - Jianfei Xia
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China.
| | - Zonghua Wang
- College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China
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Chung S, Sicklick JK, Ray P, Hall DA. Development of a Soluble KIT Electrochemical Aptasensor for Cancer Theranostics. ACS Sens 2021; 6:1971-1979. [PMID: 34008963 PMCID: PMC8785434 DOI: 10.1021/acssensors.1c00535] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An electrochemical sensor based on a conformation-changing aptamer is reported to detect soluble KIT, a cancer biomarker, in human serum. The sensor was fabricated with a ferrocene-labeled aptamer (Kd < 5 nM) conjugated to a gold electrode. Quantitative KIT detection was achieved using electrochemical impedance spectroscopy (EIS) and square-wave voltammetry (SWV). EIS was used to optimize experimental parameters such as the aptamer-to-spacer ratio, aptamer immobilization time, pH, and KIT incubation time, and the sensor surface was characterized using voltammetry. The assay specificity was demonstrated using interfering species and exhibited high specificity toward the target protein. The aptasensor showed a wide dynamic range, 10 pg/mL-100 ng/mL in buffer, with a 1.15 pg/mL limit of detection. The sensor also has a linear response to KIT spiked in human serum and successfully detected KIT in cancer-cell-conditioned media. The proposed aptasensor has applications as a continuous or intermittent approach for cancer therapy monitoring and diagnostics (theranostics).
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Affiliation(s)
- Saeromi Chung
- Department of Electrical and Computer Engineering, University of California San Diego, La Jolla, California 92093, United States
| | - Jason K Sicklick
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California San Diego Health, San Diego, California 92093, United States
| | - Partha Ray
- Department of Surgery, Division of Surgical Oncology, Moores Cancer Center, University of California San Diego Health, San Diego, California 92093, United States
| | - Drew A Hall
- Department of Electrical and Computer Engineering, University of California San Diego, La Jolla, California 92093, United States
- Department of Bioengineering, University of California San Diego, La Jolla, California 92093, United States
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18
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Fenati RA, Sherrell PC, Khodakov DA, Shapter JG, Ellis AV. Spatially isolated redox processes enabled by ambipolar charge transport in multi-walled carbon nanotube mats. MATERIALS HORIZONS 2021; 8:1304-1313. [PMID: 34821923 DOI: 10.1039/d0mh01967d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This work demonstrates a simple dual-well device which enables spatially isolated solutions to undergo complementary redox reactions. The device functions by the ambipolar transport of charge carriers between two spatially isolated poly(dimethylsiloxane) (PDMS) microwells through an underlying multi-walled carbon nanotube (MWCNT) mat. This MWCNT mat enables charge carriers, produced from the decomposition of an analyte in one solution, to drive a redox reaction in a spatially isolated second colorimetric read-out solution via a potential difference between the wells. As proof-of-concept a visible colorimetric read-out was shown using an enzyme, cytochrome c (reduced in 16 h), and the visualizing reagent 3,3',5,5'-tetramethylbenzidine (TMB) (oxidized in 2.5 h) for the detection of dithionite and hydrogen peroxide, respectively, without any external energy input. We discuss the origin of this phenomenon and highlight the ability of MWCNTs to accept and transport both electrons and holes efficiently between spatially isolated solutions giving rise to a highly versatile sensor suitable for use in simple, low-cost point-of-care diagnostics.
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Affiliation(s)
- Renzo A Fenati
- Department of Chemical Engineering, The University of Melbourne, Parkville, 3010, Victoria, Australia.
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19
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The use of aptamers in prostate cancer: A systematic review of theranostic applications. Clin Biochem 2021; 93:9-25. [PMID: 33794195 DOI: 10.1016/j.clinbiochem.2021.03.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 02/07/2023]
Abstract
Since prostate cancer (PCa) relies on limited diagnosis and therapies, more effective alternatives are needed. Aptamers are versatile tools that may be applied for better clinical management of PCa patients. This review shows the trends on aptamer-based applications for PCa to understand their future development. We searched articles reporting aptamers applied in PCa on the Pubmed, Scopus and Web of Science databases over the last decade. Almost 80% of the articles used previously selected aptamers in novel approaches. However, cell-SELEX was the most applied technique for the selection of new aptamers allowing their binding to targets in their native configuration. ssDNA aptamers were 24% more common than RNA aptamers. The most studied PCa-specific aptamers were the DNA PSA-specific aptamer PSap4#5 and the PSMA-specific RNA aptamers A10 and A9, being PSA and PSMA the most reported targets. Thus, researchers still prefer the ease of use of DNA aptamers. Blood-based liquid biopsies represented 24% of all samples, being the most promising clinical samples. Especially noteworthy, electro-analytical methods accounted for more than 40% of the diagnostic techniques and treatment approaches with drug delivery systems or transcriptional modifiers were reported in 70% of the articles. Although all these articles showed clinically relevant aptamers for PCa and there are good prospects for their use, the development of all these strategies was in its early stages. Thus, the aptamers are not completely validated and we foresee that the completion of clinical studies will allow the implementation of these aptamer-based technologies in the clinical practice of PCa.
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20
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Dowlatshahi S, Abdekhodaie MJ. Electrochemical prostate-specific antigen biosensors based on electroconductive nanomaterials and polymers. Clin Chim Acta 2021; 516:111-135. [PMID: 33545110 DOI: 10.1016/j.cca.2021.01.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 01/11/2023]
Abstract
Prostate cancer (PCa), the second most malignant neoplasm in men, is also the fifth leading cause of cancer-related deaths in men globally. Unfortunately, this malignancy remains largely asymptomatic until late-stage emergence when treatment is limited due to the lack of effective metastatic PCa therapeutics. Due to these limitations, early PCa detection through prostate-specific antigen (PSA) screening has become increasingly important, resulting in a more than 50% decrease in mortality. Conventional assays for PSA detection, such as enzyme-linked immunosorbent assay (ELISA), are labor intensive, relatively expensive, operator-dependent and do not provide adequate sensitivity. Electrochemical biosensors overcome these limitations because they are rapid, cost-effective, simple to use and ultrasensitive. This article reviews electrochemical PSA biosensors using electroconductive nanomaterials such as carbon-, metal-, metal oxide- and peptide-based nanostructures, as well as polymers to significantly improve conductivity and enhance sensitivity. Challenges associated with the development of these devices are discussed thus providing additional insight into their analytic strength as well as their potential use in early PCa detection.
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Affiliation(s)
- Sayeh Dowlatshahi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad J Abdekhodaie
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran; Yeates School of Graduate Studies, Ryerson University, Toronto, Ontario, Canada.
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21
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Farshchi F, Hasanzadeh M. Nanomaterial based aptasensing of prostate specific antigen (PSA): Recent progress and challenges in efficient diagnosis of prostate cancer using biomedicine. Biomed Pharmacother 2020; 132:110878. [DOI: 10.1016/j.biopha.2020.110878] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 09/29/2020] [Accepted: 10/09/2020] [Indexed: 12/19/2022] Open
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22
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Ghanavati M, Tadayon F, Bagheri H. A novel label-free impedimetric immunosensor for sensitive detection of prostate specific antigen using Au nanoparticles/MWCNTs- graphene quantum dots nanocomposite. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105301] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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23
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Díaz-Fernández A, Miranda-Castro R, de-Los-Santos-Álvarez N, Lobo-Castañón MJ, Estrela P. Impedimetric aptamer-based glycan PSA score for discrimination of prostate cancer from other prostate diseases. Biosens Bioelectron 2020; 175:112872. [PMID: 33288424 DOI: 10.1016/j.bios.2020.112872] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/15/2020] [Accepted: 11/27/2020] [Indexed: 12/29/2022]
Abstract
Prostate specific antigen (PSA) is the common biomarker for prostate cancer (PCa). However, its lack of specificity to differentiate PCa from benign prostate disorders stimulates the search for alternative cancer biomarkers to improve the clinical management of the patients. Different studies have described changes in the core-fucosylation level of PSA between PCa patients and healthy controls. To exploit these findings, we have adapted an impedimetric aptamer-based sensor to the dual recognition of PSA. Two different aptamers, PSAG-1 and anti-PSA, are immobilized onto two adjacent nanostructured gold electrodes. The direct binding from diluted serum samples of specific glycosylated-PSA to the first sensor and total PSA to the second one leads to changes in the charge transfer resistance, which correlate to the amount of glycosylated and total PSA in the sample. The sensors are able to measure PSA in serum with a dynamic range between 0.26 and 62.5 ng/mL (PSAG-1) and from 0.64 to 62.5 ng/mL (anti-PSA), with a reproducibility of 5.4 %. The final output of the proposed platform is the ratio between PSAG-1 reactive PSA and total PSA, defined as the glycan score. The glycan score was tested in serum samples from patients with different pathologies, showing excellent correlation between the measured score and the known diagnosis of the patients. Hence this dual aptamer-based impedimetric biosensor could be used as a minimally invasive method for the diagnosis of prostate cancer.
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Affiliation(s)
- Ana Díaz-Fernández
- Departamento de Química Física y Analítica. Universidad de Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias, Avenida de Roma, 33011 Oviedo, Spain
| | - Rebeca Miranda-Castro
- Departamento de Química Física y Analítica. Universidad de Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias, Avenida de Roma, 33011 Oviedo, Spain
| | - Noemí de-Los-Santos-Álvarez
- Departamento de Química Física y Analítica. Universidad de Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias, Avenida de Roma, 33011 Oviedo, Spain
| | - María Jesús Lobo-Castañón
- Departamento de Química Física y Analítica. Universidad de Oviedo, Av. Julián Clavería 8, 33006 Oviedo, Spain; Instituto de Investigación Sanitaria del Principado de Asturias, Avenida de Roma, 33011 Oviedo, Spain.
| | - Pedro Estrela
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, BA2 7AY, Bath, United Kingdom; Department of Electronic and Electrical Engineering, University of Bath, BA2 7AY, Bath, United Kingdom.
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Ospina-Villa JD, Cisneros-Sarabia A, Sánchez-Jiménez MM, Marchat LA. Current Advances in the Development of Diagnostic Tests based on Aptamers in Parasitology: A Systematic Review. Pharmaceutics 2020; 12:pharmaceutics12111046. [PMID: 33142793 PMCID: PMC7693570 DOI: 10.3390/pharmaceutics12111046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023] Open
Abstract
Aptamers are single-stranded DNA or RNA sequences of 20–80 nucleotides that interact with different targets such as: proteins, ions, viruses, or toxins, through non-covalent interactions and their unique three-dimensional conformation. They are obtained in vitro by the systematic evolution of ligands by exponential enrichment (SELEX). Because of their ability of target recognition with high specificity and affinity, aptamers are usually compared to antibodies. However, they present many advantages that make them promising molecules for the development of new methods for the diagnosis and treatment of human diseases. In medical parasitology, aptamers also represent an attractive alternative for the implementation of new parasite detection methods, easy to apply in endemic regions. The aim of this study was to describe the current advances in the development of diagnostic tests based on aptamers in parasitology. For this, articles were selected following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, with specific inclusion and exclusion criteria. The 26 resulting articles deal with the use of aptamers for the detection of six important protozoa that affect human health. This systematic review clearly demonstrates the specificity, sensitivity and selectivity of aptamers and aptasensors, that certainly will soon become standard methods in medical parasitology.
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Affiliation(s)
- Juan David Ospina-Villa
- Instituto Colombiano de Medicina Tropical, Universidad CES, Sabaneta CP 055450, Antioquia, Colombia; (J.D.O.-V.); (M.M.S.-J.)
| | - Alondra Cisneros-Sarabia
- ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, Fracc. La Escalera, Ticomán, Del. Gustavo A. Madero, Mexico City CP 07320, Mexico;
| | - Miryan Margot Sánchez-Jiménez
- Instituto Colombiano de Medicina Tropical, Universidad CES, Sabaneta CP 055450, Antioquia, Colombia; (J.D.O.-V.); (M.M.S.-J.)
| | - Laurence A. Marchat
- ENMH, Instituto Politécnico Nacional, Guillermo Massieu Helguera 239, Fracc. La Escalera, Ticomán, Del. Gustavo A. Madero, Mexico City CP 07320, Mexico;
- Correspondence: ; Tel.: +52-55-5729-6300 (ext. 55543)
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Mi X, Li H, Tan R, Tu Y. Dual-Modular Aptasensor for Detection of Cardiac Troponin I Based on Mesoporous Silica Films by Electrochemiluminescence/Electrochemical Impedance Spectroscopy. Anal Chem 2020; 92:14640-14647. [PMID: 33090771 DOI: 10.1021/acs.analchem.0c03130] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A simple, dual-modular aptasensor for accurate determination of cardiac troponin I (cTnI), a sensitive biomarker of acute myocardial infarction, is reported. It has the parallel output of electrochemiluminescence (ECL) and electrochemical impedance spectroscopy (EIS) based on target-gated transportation of signal probes (luminol/H2O2 or Fe(CN)63-/4-). The sensing capacity is originated from the amino-functionalized mouth margin of the nanochannels in a vertically oriented mesoporous silica film, which was in situ-grown on indium tin oxide-coated glass. With the linkage of glutaraldehyde to couple the aptamer as a trapper, it brings in the high specific target-gated response toward cTnI as decreased ECL or increased EIS. The concentration of cTnI is measurable by the ECL response within a wide linear range from 0.05 pg mL-1 to 10 ng mL-1, as well as the EIS response for a linear range between 0.05 pg mL-1 and 1 ng mL-1. Significantly, the self-verification of these two data from ECL and EIS validated each other with a satisfactory linear correlation (R2 = 0.999), thereby realizing the more reliable and accurate quantification to avoid false results. The designed strategy is an effective method for detection of cTnI, which is of great potential to apply in clinical detection.
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Affiliation(s)
- Xiaona Mi
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215123, P. R. China
| | - Hui Li
- Department of Cardiology, The Second Affiliated Hospital of Soochow University, Suzhou 215004, P. R. China
| | - Rong Tan
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215123, P. R. China
| | - Yifeng Tu
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou 215123, P. R. China
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26
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Nur Topkaya S, Cetin AE. Electrochemical Aptasensors for Biological and Chemical Analyte Detection. ELECTROANAL 2020. [DOI: 10.1002/elan.202060388] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Seda Nur Topkaya
- Izmir Katip Celebi University Faculty of Pharmacy, Department of Analytical Chemistry 35620, Cigli Izmir TURKEY
| | - Arif E. Cetin
- Izmir Biomedicine and Genome Center 35330, Balcova Izmir TURKEY
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27
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Solhi E, Hasanzadeh M. Critical role of biosensing on the efficient monitoring of cancer proteins/biomarkers using label-free aptamer based bioassay. Biomed Pharmacother 2020; 132:110849. [PMID: 33068928 DOI: 10.1016/j.biopha.2020.110849] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 02/07/2023] Open
Abstract
Cancer is the second most extended disease during the world with an improved death rate over the past several time. Due to the restrictions of cancer analysis methods, the patient's real survival rate is unknown. Therefore early stage diagnosis of cancer is crucial for its strong detection. Bio-analysis based on biomarkers may help to overcome this problem. Aptamers can be employed as high-affinity tools for cancer detection. The utilization of aptamer-based strategy in cancer investigation and strategy shows new opportunities in biotechnology. The label-free system is an important method to study biomolecules in different sizes, such as biomarkers in real-time because of their greatest sensitivity, selectivity, and multi examination. In this review (with 75 references), excellent features of the label-free aptasensors on the sensitive and accurate monitoring of cancer biomarkers were discussed. Also, the role of advanced of nanomaterials on the construction of label-free aptasensors were investigated. In addition, application of different detection methods such as electrochemical, optical, electronic, and photoelectrochemical (PEC), electrochemiluminescence (ECL) were surveyed. Finally, advantages and limitation of different strategies on the early stage diagnosis of cancer biomarkers were discussed. This article has been updated until July 2020.
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Affiliation(s)
- Elham Solhi
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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28
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Printed Electrodes in Microfluidic Arrays for Cancer Biomarker Protein Detection. BIOSENSORS-BASEL 2020; 10:bios10090115. [PMID: 32906644 PMCID: PMC7559629 DOI: 10.3390/bios10090115] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/27/2020] [Accepted: 09/01/2020] [Indexed: 12/27/2022]
Abstract
Medical diagnostics is trending towards a more personalized future approach in which multiple tests can be digitized into patient records. In cancer diagnostics, patients can be tested for individual protein and genomic biomarkers that detect cancers at very early stages and also be used to monitor cancer progression or remission during therapy. These data can then be incorporated into patient records that could be easily accessed on a cell phone by a health care professional or the patients themselves on demand. Data on protein biomarkers have a large potential to be measured in point-of-care devices, particularly diagnostic panels that could provide a continually updated, personalized record of a disease like cancer. Electrochemical immunoassays have been popular among protein detection methods due to their inherent high sensitivity and ease of coupling with screen-printed and inkjet-printed electrodes. Integrated chips featuring these kinds of electrodes can be built at low cost and designed for ease of automation. Enzyme-linked immunosorbent assay (ELISA) features are adopted in most of these ultrasensitive detection systems, with microfluidics allowing easy manipulation and good fluid dynamics to deliver reagents and detect the desired proteins. Several of these ultrasensitive systems have detected biomarker panels ranging from four to eight proteins, which in many cases when a specific cancer is suspected may be sufficient. However, a grand challenge lies in engineering microfluidic-printed electrode devices for the simultaneous detection of larger protein panels (e.g., 50-100) that could be used to test for many types of cancers, as well as other diseases for truly personalized care.
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Screen-Printed Electrodes (SPE) for In Vitro Diagnostic Purpose. Diagnostics (Basel) 2020; 10:diagnostics10080517. [PMID: 32722552 PMCID: PMC7460409 DOI: 10.3390/diagnostics10080517] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/11/2020] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
Due to rapidly spreading infectious diseases and the high incidence of other diseases such as cancer or metabolic syndrome, there is a continuous need for the development of rapid and accurate diagnosis methods. Screen-printed electrodes-based biosensors have been reported to offer reliable results, with high sensitivity and selectivity and, in some cases, low detection limits. There are a series of materials (carbon, gold, platinum, etc.) used for the manufacturing of working electrodes. Each version comes with advantages, as well as challenges for their functionalization. Thus, the aim is to review the most promising biosensors developed using screen-printed electrodes for the detection/quantification of proteins, biomarkers, or pathogenic microorganisms.
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30
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Rabiee N, Ahmadi S, Arab Z, Bagherzadeh M, Safarkhani M, Nasseri B, Rabiee M, Tahriri M, Webster TJ, Tayebi L. Aptamer Hybrid Nanocomplexes as Targeting Components for Antibiotic/Gene Delivery Systems and Diagnostics: A Review. Int J Nanomedicine 2020; 15:4237-4256. [PMID: 32606675 PMCID: PMC7314593 DOI: 10.2147/ijn.s248736] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 04/01/2020] [Indexed: 12/11/2022] Open
Abstract
With the passage of time and more advanced societies, there is a greater emergence and incidence of disease and necessity for improved treatments. In this respect, nowadays, aptamers, with their better efficiency at diagnosing and treating diseases than antibodies, are at the center of attention. Here, in this review, we first investigate aptamer function in various fields (such as the detection and remedy of pathogens, modification of nanoparticles, antibiotic delivery and gene delivery). Then, we present aptamer-conjugated nanocomplexes as the main and efficient factor in gene delivery. Finally, we focus on the targeted co-delivery of genes and drugs by nanocomplexes, as a new exciting approach for cancer treatment in the decades ahead to meet our growing societal needs.
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Affiliation(s)
- Navid Rabiee
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Sepideh Ahmadi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeynab Arab
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | | | - Moein Safarkhani
- Department of Chemistry, Sharif University of Technology, Tehran, Iran
| | - Behzad Nasseri
- Chemical Engineering Department and Bioengineering Division, Hacettepe University, Beytepe, Ankara06800, Turkey
- Chemical Engineering and Applied Chemistry Department, Atilim University, Ankara, Turkey
| | - Mohammad Rabiee
- Biomaterial Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | | | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA02115, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI53233, USA
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Arshavsky-Graham S, Urmann K, Salama R, Massad-Ivanir N, Walter JG, Scheper T, Segal E. Aptamers vs. antibodies as capture probes in optical porous silicon biosensors. Analyst 2020; 145:4991-5003. [PMID: 32519701 DOI: 10.1039/d0an00178c] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Over the past decade aptamers have emerged as a promising class of bioreceptors for biosensing applications with significant advantages over conventional antibodies. However, experimental studies comparing aptasensors and immunosensors, under equivalent conditions, are limited and the results are inconclusive, in terms of benefits and limitations of each bioreceptor type. In the present work, the performance of aptamer and antibody bioreceptors for the detection of a his-tagged protein, used as a model target, is compared. The bioreceptors are immobilized onto a nanostructured porous silicon (PSi) thin film, used as the optical transducer, and the target protein is detected in a real-time and label-free format by reflective interferometric Fourier transform spectroscopy. For the antibodies, random-oriented immobilization onto the PSi nanostructure results in a poor biosensing performance. Contrary, Fc-oriented immobilization of the antibodies shows a similar biosensing performance to that exhibited by the aptamer-based biosensor, in terms of binding rate, dynamic detection range, limit of detection and selectivity. The aptasensor outperforms in terms of its reusability and storability, while the immunosensor could not be regenerated for subsequent experiments.
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Affiliation(s)
- Sofia Arshavsky-Graham
- Institute of Technical Chemistry, Leibniz University of Hannover, Callinstr. 5, 30167 Hannover, Germany.
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Sharma A, Bhardwaj J, Jang J. Label-Free, Highly Sensitive Electrochemical Aptasensors Using Polymer-Modified Reduced Graphene Oxide for Cardiac Biomarker Detection. ACS OMEGA 2020; 5:3924-3931. [PMID: 32149219 PMCID: PMC7057319 DOI: 10.1021/acsomega.9b03368] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 02/05/2020] [Indexed: 05/24/2023]
Abstract
Acute myocardial infarction (AMI), also recognized as a "heart attack," is one leading cause of death globally, and cardiac myoglobin (cMb), an important cardiac biomarker, is used for the early assessment of AMI. This paper presents an ultrasensitive, label-free electrochemical aptamer-based sensor (aptasensor) for cMb detection using polyethylenimine (PEI)-functionalized reduced graphene oxide (PEI-rGO) thin films. PEI, a cationic polymer, was used as a reducing agent for graphene oxide (GO), providing highly positive charges on the rGO surface and allowing direct immobilization of negatively charged single-strand DNA aptamers against cMb via electrostatic interaction without any linker or coupling chemistry. The presence of cMb was detected on Mb aptamer-modified electrodes using differential pulse voltammetry via measuring the current change due to the direct electron transfer between the electrodes and cMb proteins (Fe3+/Fe2+). The limits of detection were 0.97 pg mL-1 (phosphate-buffered saline) and 2.1 pg mL-1 (10-fold-diluted human serum), with a linear behavior with logarithmic cMb concentration. The specificity and reproducibility of the aptasensors were also examined. This electrochemical aptasensor using polymer-modified rGO shows potential for the early assessment of cMb in point-of-care testing applications.
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Affiliation(s)
- Abhinav Sharma
- School
of Materials Science and Engineering, Ulsan
National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jyoti Bhardwaj
- Department
of Biomedical Engineering, UNIST, Ulsan 44919, Republic of Korea
| | - Jaesung Jang
- Department
of Biomedical Engineering, UNIST, Ulsan 44919, Republic of Korea
- School
of Mechanical, Aerospace and Nuclear Engineering, UNIST, Ulsan 44919, Republic of Korea
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33
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Chitosan–Fe3O4 nanoparticle enzymatic electrodes on paper as an efficient assay for glucose and uric acid detection in biological fluids. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01105-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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34
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Abstract
Antibodies are large proteins generated in vivo to bind specifically to a wide spectrum of targets ranging from biological to environmental molecules. They play a vital role in research, diagnostics, sensing, and therapeutic applications. Over the past few decades, advancements have been made to improve the performance of antibodies, specifically in the area of immunosensors. However, there has been an urgent need for alternative high-quality recognition probes that can be produced synthetically in bulk quantity to ensure better reproducibility and lower cost, as well as avoiding the need of using animals in the production process. Aptamers are synthetic nucleic acid single-stranded (ss) DNAs or RNAs that can bind with high affinity and specificity to their targets. They can be generated via in vitro section protocol, known as systematic evolution of ligands by exponential enrichment (SELEX). The advantages of aptamers promoted their successful incorporation in several signal transduction schemes, some of which reached the commercial market for point-of-care and in-field applications. This chapter describes the two types of affinity reagents: antibodies and aptamers, and their methods of production, advantages, and limitations. The focus will be directed at their incorporation in analytical transduction methods and how aptamer molecular size as well as unique conformational change upon target binding has triggered the evolution of new sensing methods.
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Affiliation(s)
- Omar A. Alsager
- National Center for Irradiation Technology, Nuclear Science Research Institute, King Abdulaziz City for Science and Technology P.O. Box 6086 Riyadh 11442 Saudi Arabia
| | - Shimaa Eissa
- Department of Chemistry, Alfaisal University Al Zahrawi Street, Al Maather, Al Takhassusi Rd Riyadh 11533 Saudi Arabia
| | - Mohammed Zourob
- Department of Chemistry, Alfaisal University Al Zahrawi Street, Al Maather, Al Takhassusi Rd Riyadh 11533 Saudi Arabia
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35
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Farzin L, Sadjadi S, Shamsipur M, Sheibani S. An immunosensing device based on inhibition of mediator's faradaic process for early diagnosis of prostate cancer using bifunctional nanoplatform reinforced by carbon nanotube. J Pharm Biomed Anal 2019; 172:259-267. [DOI: 10.1016/j.jpba.2019.05.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/27/2019] [Accepted: 05/04/2019] [Indexed: 01/08/2023]
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36
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Ghorbani F, Abbaszadeh H, Dolatabadi JEN, Aghebati-Maleki L, Yousefi M. Application of various optical and electrochemical aptasensors for detection of human prostate specific antigen: A review. Biosens Bioelectron 2019; 142:111484. [PMID: 31284103 DOI: 10.1016/j.bios.2019.111484] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/24/2019] [Accepted: 06/28/2019] [Indexed: 12/17/2022]
Abstract
Early stage detection of prostate cancer, one of the main causes of mortality among men, is of great importance for better treatment of the patients. Prostate specific antigen (PSA) is a glycoprotein which has been considered as the most potential serological biomarker for the detection of prostate cancer. Among the various techniques employed for PSA detection, aptamer-based biosensors (aptasensors) have achieved notable attention because of their unique features and great potentials as diagnostic tools. A variety of strategies such as integration of nanomaterials (NMs) into the structure of aptasensors have also been applied for enhancing the sensitivity of PSA detection. This article reviews recent advances in various optical and electrochemical aptasensors used for PSA detection.
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Affiliation(s)
- Farzaneh Ghorbani
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hossein Abbaszadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Leili Aghebati-Maleki
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mehdi Yousefi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Immunology, Faculty of Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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37
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Srivastava M, Tiwari P, Mall VK, Srivastava SK, Prakash R. Voltammetric determination of the antimalarial drug chloroquine using a glassy carbon electrode modified with reduced graphene oxide on WS2 quantum dots. Mikrochim Acta 2019; 186:415. [DOI: 10.1007/s00604-019-3525-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 05/19/2019] [Indexed: 10/26/2022]
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38
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Manbohi A, Ahmadi SH. Sensitive and selective detection of dopamine using electrochemical microfluidic paper-based analytical nanosensor. SENSING AND BIO-SENSING RESEARCH 2019. [DOI: 10.1016/j.sbsr.2019.100270] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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39
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Sarkis M, Ghanem E, Rahme K. Jumping on the Bandwagon: A Review on the Versatile Applications of Gold Nanostructures in Prostate Cancer. Int J Mol Sci 2019; 20:E970. [PMID: 30813391 PMCID: PMC6412201 DOI: 10.3390/ijms20040970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 02/21/2019] [Indexed: 01/09/2023] Open
Abstract
Prostate cancer (PCa) has remarkably emerged as a prominent disease in the face of the male population. Conventional treatments like prostatectomy or radiation can be curative only if PCa is diagnosed at an early stage. In the field of targeted therapy, a bevy of novel therapeutic approaches have left a landmark in PCa treatment and have proven to extend survival via distinct modes of actions. Nanotherapy has started to take root and has become the hype of the century by virtue of its abundant advantages. Scientists have invested a great deal of interest in the development of nanostructures such as gold nanoparticles (AuNPs), which hold particularly great hope for PCa theranostics. In this article, we present an overview of the studies published after 1998 that involve the use of different functionalized AuNPs to treat and diagnose PCa. Special reference is given to various in vitro and in vivo methods employed to shuttle AuNPs to PCa cells. Major studies show an enhancement of either detection or treatment of PCa when compared to their non-targeted counterparts, especially when AuNPs are tagged with specific ligands, such as antibodies, tea natural extracts, folate, anisamide, receptor inhibitors, and chitosan. Future approaches of treatment are dependent on those worthy multifunctional molecules, and are dictated by their ability to achieve a more versatile cancer therapeutic approach.
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Affiliation(s)
- Monira Sarkis
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, ZoukMosbeh P.O.Box:72, Lebanon.
| | - Esther Ghanem
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, ZoukMosbeh P.O.Box:72, Lebanon.
| | - Kamil Rahme
- Department of Sciences, Faculty of Natural and Applied Sciences, Notre Dame University-Louaize, ZoukMosbeh P.O.Box:72, Lebanon.
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40
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Citartan M, Tang TH. Recent developments of aptasensors expedient for point-of-care (POC) diagnostics. Talanta 2019; 199:556-566. [PMID: 30952298 DOI: 10.1016/j.talanta.2019.02.066] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 02/15/2019] [Accepted: 02/16/2019] [Indexed: 12/12/2022]
Abstract
Aptamers are nucleic acid-based molecular recognition elements that are specific and have high binding affinity against their respective targets. On account of their target recognition capacity, aptamers are widely utilized in a number of applications including diagnostics. This review aims to highlight the recent developments of aptasensors expedient for point-of-care (POC) diagnostics. Significant focus is given on the primary assay formats of aptamers such as fluorescence, electrochemical, surface plasmon resonance (SPR) and colorimetric assays. A potpourri of platforms such as paper-based device, lateral flow assay, portable electrodes, portable SPR and smart phones expedient for point-of-care (POC) diagnostics are discussed. Emphasis is also given on the technicalities and assay configurations associated with the sensors.
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Affiliation(s)
- Marimuthu Citartan
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang 13200, Malaysia.
| | - Thean-Hock Tang
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang 13200, Malaysia
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41
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Jalalian SH, Ramezani M, Danesh NM, Alibolandi M, Abnous K, Taghdisi SM. A novel electrochemical aptasensor for detection of aflatoxin M1 based on target-induced immobilization of gold nanoparticles on the surface of electrode. Biosens Bioelectron 2018; 117:487-492. [DOI: 10.1016/j.bios.2018.06.055] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/01/2018] [Accepted: 06/27/2018] [Indexed: 02/07/2023]
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42
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Taghdisi SM, Danesh NM, Nameghi MA, Ramezani M, Alibolandi M, Hassanzadeh-Khayat M, Emrani AS, Abnous K. A novel electrochemical aptasensor based on nontarget-induced high accumulation of methylene blue on the surface of electrode for sensing of α-synuclein oligomer. Biosens Bioelectron 2018; 123:14-18. [PMID: 30278340 DOI: 10.1016/j.bios.2018.09.081] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 09/14/2018] [Accepted: 09/23/2018] [Indexed: 01/13/2023]
Abstract
This study describes a novel electrochemical aptasensor for detection of α-synuclein (α-syn) oligomer, an important biomarker related to Parkinson's and Alzheimer's diseases. The sensing platform is based on exonuclease I (Exo I), terminal deoxynucleotidyl transferase (TdT) and methylene blue. The aptasensor exploits the improved sensitivity because of applications of TdT and Exo I and also a label-free aptamer (Apt). Furthermore, direct immobilization of complementary strand of aptamer (CS) instead of Apt on the surface of electrode prohibits Apt self-assembled monolayer aggregation and keeps the function of the Apt. In the absence of α-syn oligomer, TdT enhances lengths of Apt and CS and so, increases accumulation of methylene blue as redox agent on the surface of electrode, leading to a strong current signal. While in the presence of α-syn oligomer, Exo I digests CS on the electrode surface, resulting in less accumulation of methylene blue on the electrode surface and a weak current signal. The relative electrochemical signal of the aptasensor increased linearly with the logarithm of α-syn oligomer concentration in the range from 60 pM to 150 nM. The detection limit was 10 pM. Furthermore, the sensor showed high precision and repeatability for detection of α-syn oligomer in serum samples.
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Affiliation(s)
- Seyed Mohammad Taghdisi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Morteza Alinezhad Nameghi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mona Alibolandi
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Hassanzadeh-Khayat
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahmad Sarreshtehdar Emrani
- Cardiovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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43
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Aydindogan E, Guler Celik E, Odaci Demirkol D, Yamada S, Endo T, Timur S, Yagci Y. Surface Modification with a Catechol-Bearing Polypeptide and Sensing Applications. Biomacromolecules 2018; 19:3067-3076. [DOI: 10.1021/acs.biomac.8b00650] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Eda Aydindogan
- Department of Biochemistry, Faculty of Science, Ege University, 35100 Bornova, Izmir, Turkey
| | - Emine Guler Celik
- Department of Biochemistry, Faculty of Science, Ege University, 35100 Bornova, Izmir, Turkey
| | - Dilek Odaci Demirkol
- Department of Biochemistry, Faculty of Science, Ege University, 35100 Bornova, Izmir, Turkey
| | - Shuhei Yamada
- Molecular Engineering Institute, Kinki University, 11-6 Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Takeshi Endo
- Molecular Engineering Institute, Kinki University, 11-6 Kayanomori, Iizuka, Fukuoka 820-8555, Japan
| | - Suna Timur
- Department of Biochemistry, Faculty of Science, Ege University, 35100 Bornova, Izmir, Turkey
- Central Research Testing and Analysis Laboratory Research and Application Center, Ege University, 35100 Bornova, Izmir, Turkey
| | - Yusuf Yagci
- Department of Chemistry, Faculty of Science and Letters, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
- Faculty of Science, Chemistry Department, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
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