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Lin YD, Zida SI, Yang CC, Khung YL. VEGF Detection via Impedance Spectroscopy on Surface Functionalized Interdigitated Biosensor. J Funct Biomater 2023; 14:365. [PMID: 37504860 PMCID: PMC10381268 DOI: 10.3390/jfb14070365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/29/2023] Open
Abstract
Vascular endothelial growth factor (VEGF), a clinically important biomarker, often plays a key role in angiogenesis, would healing, tumor growth, lung development, and in retinal diseases. Hence, detecting and quantifying VEGF is deemed medically important in clinical diagnosis for many diseases. In this report, a simple yet highly cost-effective platform was proposed for VEGF protein detection using commercially available interdigitated sensors that are surface modified to present DNA optimally for VEGF capture. The dielectric characteristics between the fingers of the sensor were modulated by the negatively charged aptamer-VEGF capture, and the impedance was estimated using an impedance analyzer. Impedance-spectra tests were compared among pristine unmodified surfaces, functionalized monolayer surfaces, and aptamer-grafted surfaces in order to evaluate the efficacy of VEGF detection. From our results, the sensitivity experiments as conducted showed the ability of the interdigitated sensor to detect VEGF at a low concentration of 5 pM (200 pg/mL). The specificity of the functionalized sensor in detecting VEGF was further examined by comparing the impedance to platelet-derived growth factor, and the results confirm the specificity of the sensor. Finally, the Nyquist plot of impedance spectra was also presented to help data visualization and the overall performance of the device was found to be a highly suitable template for a smart biosensor for the detection of VEGF.
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Affiliation(s)
- Yue-Der Lin
- Ph.D. Program of Electrical and Communications Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
- Master's Program of Biomedical Informatics and Biomedical Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
- Department of Automatic Control Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
| | - Serge Ismael Zida
- Ph.D. Program of Electrical and Communications Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
| | - Chu-Chun Yang
- Master's Program of Biomedical Informatics and Biomedical Engineering, Feng Chia University, No. 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan
| | - Yit Lung Khung
- Department of Biological Science and Technology, China Medical University, No. 100, Section 1, Jingmao Road, Beitun District, Taichung 406040, Taiwan
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2
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Robin P, Gerber-Lemaire S. Design and Preparation of Sensing Surfaces for Capacitive Biodetection. BIOSENSORS 2022; 13:17. [PMID: 36671852 PMCID: PMC9856139 DOI: 10.3390/bios13010017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Despite their high sensitivity and their suitability for miniaturization, biosensors are still limited for clinical applications due to the lack of reproducibility and specificity of their detection performance. The design and preparation of sensing surfaces are suspected to be a cause of these limitations. Here, we first present an updated overview of the current state of use of capacitive biosensors in a medical context. Then, we summarize the encountered strategies for the fabrication of capacitive biosensing surfaces. Finally, we describe the characteristics which govern the performance of the sensing surfaces, along with recent developments that were suggested to overcome their main current limitations.
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Xu X, Jiang M, Miao D, Liu Y, Tan X, Hu J, Gu C, Peng W, Jiang F. Synthesis of a Terminal Amino‐Modified Nucleolin Aptamer and Its Paclitaxel Conjugate. ChemistrySelect 2022. [DOI: 10.1002/slct.202202781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaoling Xu
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
| | - Mingyu Jiang
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
- College of Basic Medical Science Jiujiang University Jiujiang Jiangxi 332000 P.R. China
| | - Dan Miao
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
| | - Yongping Liu
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
| | - Xiaobin Tan
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
| | - Jiawei Hu
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
| | - Chunye Gu
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
| | - Weijie Peng
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
| | - Feng Jiang
- Key Laboratory of biomaterials and biofabrication in tissue engineering of Jiangxi Province Gannan Medical University Ganzhou Jiangxi 341000 P.R. China
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Ahirwar R, Khan N, Kumar S. Aptamer-based sensing of breast cancer biomarkers: a comprehensive review of analytical figures of merit. Expert Rev Mol Diagn 2021; 21:703-721. [PMID: 33877005 DOI: 10.1080/14737159.2021.1920397] [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] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Accurate determination of the aberrantly expressed biomarkers such as human epidermal growth factor receptor 2 (HER2), carcinoembryonic antigen (CEA), platelet-derived growth factor (PDGF), mucin 1 (MUC1), and vascular endothelial growth factor VEGF165 have played an essential role in the clinical management of the breast cancer. Assessment of these cancer-specific biomarkers has conventionally relied on time-taking methods like the enzyme-linked immunosorbent assay and immunohistochemistry. However, recent development in the aptamer-based diagnostics has allowed developing tools that may substitute the conventional means of biomarker assessment in breast cancer. Adopting the aptamer-based diagnostic tools (aptasensors) to clinical practices will depend on their analytical performance on clinical samples. AREAS COVERED In this review, we provide an overview of the analytical merits of HER2, CEA, PDGF, MUC1, and VEGF165 aptasensors. Scopus and Pubmed databases were searched for studies reporting aptasensor development for the listed breast cancer biomarkers in the past one decade. Linearity, detection limit, and response time are emphasized. EXPERT OPINION In our opinion, aptasensors have proven to be on a par with the antibody-based methods for detection of various breast cancer biomarkers. Though robust validation of the aptasensors on significant sample size is required, their ability to detect pathophysiological range of biomarkers suggest the possibility of future clinical adoption.
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Affiliation(s)
- Rajesh Ahirwar
- Department of Environmental Biochemistry, ICMR- National Institute for Research in Environmental Health, Bhopal, India
| | - Nabab Khan
- Department of Environmental Biochemistry, ICMR- National Institute for Research in Environmental Health, Bhopal, India
| | - Saroj Kumar
- School of Biosciences, Apeejay Stya University, Gurgaon, India
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Yan J, Gao T, Lu Z, Yin J, Zhang Y, Pei R. Aptamer-Targeted Photodynamic Platforms for Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:27749-27773. [PMID: 34110790 DOI: 10.1021/acsami.1c06818] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Achieving controlled and accurate delivery of photosensitizers (PSs) into tumor sites is a major challenge in conventional photodynamic therapy (PDT). Aptamer is a short oligonucleotide sequence (DNA or RNA) with a folded three-dimensional structure, which can selectively bind to specific small molecules, proteins, or the whole cells. Aptamers could act as ligands and be modified onto PSs or nanocarriers, enabling specific recognition and binding to tumor cells or their membrane proteins. The resultant aptamer-modified PSs or PSs-containing nanocarriers generate amounts of reactive oxygen species with light irradiation and obtain superior photodynamic therapeutic efficiency in tumors. Herein, we overview the recent progress in the designs and applications of aptamer-targeted photodynamic platforms for tumor therapy. First, we focus on the progress on the rational selection of aptamers and summarize the applications of aptamers which have been applied for targeted tumor diagnosis and therapy. Then, aptamer-targeted photodynamic therapies including various aptamer-PSs, aptamer-nanocarriers containing PSs, and aptamer-nano-photosensitizers are highlighted. The aptamer-targeted synergistically therapeutic platforms including PDT, photothermal therapy, and chemotherapy, as well as the imaging-guided theranostics, are also discussed. Finally, we offer an insight into the development trends and future perspectives of aptamer-targeted photodynamic platforms for tumor therapy.
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Affiliation(s)
- Jincong Yan
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, 200444 Shanghai, China
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, 215123 Suzhou, China
| | - Tian Gao
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, 215123 Suzhou, China
| | - Zhongzhong Lu
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, 215123 Suzhou, China
| | - Jingbo Yin
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, 200444 Shanghai, China
| | - Ye Zhang
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, 215123 Suzhou, China
| | - Renjun Pei
- CAS Key Laboratory for Nano-Bio Interface, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, 215123 Suzhou, China
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Malecka K, Mikuła E, Ferapontova EE. Design Strategies for Electrochemical Aptasensors for Cancer Diagnostic Devices. SENSORS 2021; 21:s21030736. [PMID: 33499136 PMCID: PMC7866130 DOI: 10.3390/s21030736] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 02/07/2023]
Abstract
Improved outcomes for many types of cancer achieved during recent years is due, among other factors, to the earlier detection of tumours and the greater availability of screening tests. With this, non-invasive, fast and accurate diagnostic devices for cancer diagnosis strongly improve the quality of healthcare by delivering screening results in the most cost-effective and safe way. Biosensors for cancer diagnostics exploiting aptamers offer several important advantages over traditional antibodies-based assays, such as the in-vitro aptamer production, their inexpensive and easy chemical synthesis and modification, and excellent thermal stability. On the other hand, electrochemical biosensing approaches allow sensitive, accurate and inexpensive way of sensing, due to the rapid detection with lower costs, smaller equipment size and lower power requirements. This review presents an up-to-date assessment of the recent design strategies and analytical performance of the electrochemical aptamer-based biosensors for cancer diagnosis and their future perspectives in cancer diagnostics.
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Affiliation(s)
- Kamila Malecka
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima Str. 10, 10-748 Olsztyn, Poland; (K.M.); (E.M.)
| | - Edyta Mikuła
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima Str. 10, 10-748 Olsztyn, Poland; (K.M.); (E.M.)
| | - Elena E. Ferapontova
- Interdisciplinary Nanoscience Center (iNANO), Faculty of Science and Technology, Aarhus University, Gustav Wieds Vej 14, 8000 Aarhus C, Denmark
- Correspondence: ; Tel.: +45-87156703
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7
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Ziółkowski R, Jarczewska M, Górski Ł, Malinowska E. From Small Molecules Toward Whole Cells Detection: Application of Electrochemical Aptasensors in Modern Medical Diagnostics. SENSORS (BASEL, SWITZERLAND) 2021; 21:724. [PMID: 33494499 PMCID: PMC7866209 DOI: 10.3390/s21030724] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 02/07/2023]
Abstract
This paper focuses on the current state of art as well as on future trends in electrochemical aptasensors application in medical diagnostics. The origin of aptamers is presented along with the description of the process known as SELEX. This is followed by the description of the broad spectrum of aptamer-based sensors for the electrochemical detection of various diagnostically relevant analytes, including metal cations, abused drugs, neurotransmitters, cancer, cardiac and coagulation biomarkers, circulating tumor cells, and viruses. We described also possible future perspectives of aptasensors development. This concerns (i) the approaches to lowering the detection limit and improvement of the electrochemical aptasensors selectivity by application of the hybrid aptamer-antibody receptor layers and/or nanomaterials; and (ii) electrochemical aptasensors integration with more advanced microfluidic devices as user-friendly medical instruments for medical diagnostic of the future.
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Affiliation(s)
- Robert Ziółkowski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (M.J.); (Ł.G.)
| | - Marta Jarczewska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (M.J.); (Ł.G.)
| | - Łukasz Górski
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (M.J.); (Ł.G.)
| | - Elżbieta Malinowska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (M.J.); (Ł.G.)
- Center for Advanced Materials and Technologies, Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
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8
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Şahin S, Caglayan MO, Üstündağ Z. Recent advances in aptamer-based sensors for breast cancer diagnosis: special cases for nanomaterial-based VEGF, HER2, and MUC1 aptasensors. Mikrochim Acta 2020; 187:549. [PMID: 32888061 DOI: 10.1007/s00604-020-04526-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 08/20/2020] [Indexed: 02/07/2023]
Abstract
Cancer is one of the most common and important diseases with a high mortality rate. Breast cancer is among the three most common types of cancer in women, and the mortality rate has reached 0.024% in some countries. For early-stage preclinical diagnosis of breast cancer, sensitive and reliable tools are needed. Today, there are many types of biomarkers that have been identified for cancer diagnosis. A wide variety of detection strategies have also been developed for the detection of these biomarkers from serum or other body fluids at physiological concentrations. Aptamers are single-stranded DNA or RNA oligonucleotides and promising in the production of more sensitive and reliable biosensor platforms in combination with a wide range of nanomaterials. Conformational changes triggered by the target analyte have been successfully applied in fluorometric, colorimetric, plasmonic, and electrochemical-based detection strategies. This review article presents aptasensor approaches used in the detection of vascular endothelial growth factor (VEGF), human epidermal growth factor receptor 2 (HER2), and mucin-1 glycoprotein (MUC1) biomarkers, which are frequently studied in the diagnosis of breast cancer. The focus of this review article is on developments of the last decade for detecting these biomarkers using various sensitivity enhancement techniques and nanomaterials.
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Affiliation(s)
- Samet Şahin
- Department of Bioengineering, Bilecik Şeyh Edebali University, 11230, Bilecik, Turkey.
| | | | - Zafer Üstündağ
- Department of Chemistry, Kütahya Dumlupınar University, 43100, Kütahya, Turkey
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Figueroa-Miranda G, Wu C, Zhang Y, Nörbel L, Lo Y, Tanner JA, Elling L, Offenhäusser A, Mayer D. Polyethylene glycol-mediated blocking and monolayer morphology of an electrochemical aptasensor for malaria biomarker detection in human serum. Bioelectrochemistry 2020; 136:107589. [PMID: 32679336 DOI: 10.1016/j.bioelechem.2020.107589] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 06/24/2020] [Accepted: 06/25/2020] [Indexed: 12/22/2022]
Abstract
Better approaches are critically needed for in situ point-of-care diagnostic biosensors that enable primary care physicians, or even individual patients, to directly analyze biological fluids without complicated sample pretreatments. Additional purification steps consume time, consume reagents, often require other equipment, and can introduce false-negative results. Biosensors have been modified with blocking molecules to reduce biofouling; however, the effectiveness relies on their chemical composition and morphology. Here, we used a polyethylene glycol film to suppress unspecific binding from human serum on an electrochemical malaria aptasensor. A detailed study of the variation of the chemical and morphological composition of the aptamer/polyethylene glycol mixed monolayer as a function of incubation time was conducted. Higher resistance to matrix biofouling was found for polyethylene glycol than for hydrophobic alkanethiol films. The best sensor performance was observed for intermediate polyethylene glycol immobilization times. With prolonged incubation, phase separation of aptamer, and polyethylene glycol molecules locally increased the aptamer density and thereby diminished the analyte binding capability. Remarkably, polyethylene glycols do not affect the aptasensor sensitivity but enhance the complex matrix tolerance, the dynamic range, and the limit of detection. Careful tuning of the blocking molecule immobilization is crucial to achieving high aptasensor performance and biofouling resistance.
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Affiliation(s)
- Gabriela Figueroa-Miranda
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich GmbH, Jülich, Germany; Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
| | - Changtong Wu
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Yuting Zhang
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Lena Nörbel
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Young Lo
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region
| | - Julian Alexander Tanner
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region
| | - Lothar Elling
- Laboratory for Biomaterials, Institute for Biotechnology and Helmholtz-Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
| | - Andreas Offenhäusser
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Dirk Mayer
- Institute of Biological Information Processing, Bioelectronics (IBI-3), Forschungszentrum Jülich GmbH, Jülich, Germany.
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Guerrero S, Agüí L, Yáñez-Sedeño P, Pingarrón J. Design of electrochemical immunosensors using electro-click chemistry. Application to the detection of IL-1β cytokine in saliva. Bioelectrochemistry 2020; 133:107484. [DOI: 10.1016/j.bioelechem.2020.107484] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 02/13/2020] [Accepted: 02/13/2020] [Indexed: 12/16/2022]
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Liang Y, Wu C, Figueroa-Miranda G, Offenhäusser A, Mayer D. Amplification of aptamer sensor signals by four orders of magnitude via interdigitated organic electrochemical transistors. Biosens Bioelectron 2019; 144:111668. [PMID: 31522101 DOI: 10.1016/j.bios.2019.111668] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/13/2019] [Accepted: 08/29/2019] [Indexed: 12/01/2022]
Abstract
Electrochemical aptamer receptor/transducer systems are key elements of emerging E-AB sensors (aptasensor) used for the detection of various kinds of targets. However, the performance of these amperometric sensors is often limited by the low density of receptors attached to the sensor surface and high background signals. In the present work, interdigitated organic electrochemical transistors (iOECT) were used as a transducer to enhance the sensitivity and dynamic detection range of aptasensors. Therefore, the electrode of an amperometric sensor was utilized as gate electrode to operate the iOECT. This device was used to detect the low weight target molecule adenosine triphosphate (ATP), a common biomarker, which plays an important role for cardiovascular, neurodegenerative, and immune deficiency diseases. The novel aptasensor can selectively detect ATP with ultrahigh sensitivity down to the concentration of 10 pM, which is four orders of magnitude lower than the detection limit of the same aptasensor using an amperometric transducer principle (limit-of-detection of 106 nM) and most other previously reported electrochemical sensors. Furthermore, sensor regeneration was demonstrated, which facilitates reusability of OECT aptasensors. The small device size in combination with high transconductances paves the way for the development of highly sensitive integrated micro-biosensors for point-of-care applications.
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Affiliation(s)
- Yuanying Liang
- Institute of Complex Systems, Bioelectronics (ICS-8) and JARA-Fundamentals of Future Information Technology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Changtong Wu
- Institute of Complex Systems, Bioelectronics (ICS-8) and JARA-Fundamentals of Future Information Technology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Gabriela Figueroa-Miranda
- Institute of Complex Systems, Bioelectronics (ICS-8) and JARA-Fundamentals of Future Information Technology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Andreas Offenhäusser
- Institute of Complex Systems, Bioelectronics (ICS-8) and JARA-Fundamentals of Future Information Technology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Dirk Mayer
- Institute of Complex Systems, Bioelectronics (ICS-8) and JARA-Fundamentals of Future Information Technology, Forschungszentrum Jülich, 52425, Jülich, Germany.
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Yáñez-Sedeño P, González-Cortés A, Campuzano S, Pingarrón JM. Copper(I)-Catalyzed Click Chemistry as a Tool for the Functionalization of Nanomaterials and the Preparation of Electrochemical (Bio)Sensors. SENSORS (BASEL, SWITZERLAND) 2019; 19:E2379. [PMID: 31137612 PMCID: PMC6566994 DOI: 10.3390/s19102379] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/20/2019] [Accepted: 05/22/2019] [Indexed: 01/30/2023]
Abstract
Proper functionalization of electrode surfaces and/or nanomaterials plays a crucial role in the preparation of electrochemical (bio)sensors and their resulting performance. In this context, copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) has been demonstrated to be a powerful strategy due to the high yields achieved, absence of by-products and moderate conditions required both in aqueous medium and under physiological conditions. This particular chemistry offers great potential to functionalize a wide variety of electrode surfaces, nanomaterials, metallophthalocyanines (MPcs) and polymers, thus providing electrochemical platforms with improved electrocatalytic ability and allowing the stable, reproducible and functional integration of a wide range of nanomaterials and/or different biomolecules (enzymes, antibodies, nucleic acids and peptides). Considering the rapid progress in the field, and the potential of this technology, this review paper outlines the unique features imparted by this particular reaction in the development of electrochemical sensors through the discussion of representative examples of the methods mainly reported over the last five years. Special attention has been paid to electrochemical (bio)sensors prepared using nanomaterials and applied to the determination of relevant analytes at different molecular levels. Current challenges and future directions in this field are also briefly pointed out.
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Affiliation(s)
- P Yáñez-Sedeño
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain.
| | - A González-Cortés
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain.
| | - S Campuzano
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain.
| | - J M Pingarrón
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, 28040 Madrid, Spain.
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13
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Suo Z, Chen J, Hou X, Hu Z, Xing F, Feng L. Growing prospects of DNA nanomaterials in novel biomedical applications. RSC Adv 2019; 9:16479-16491. [PMID: 35516377 PMCID: PMC9064466 DOI: 10.1039/c9ra01261c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 05/07/2019] [Indexed: 01/01/2023] Open
Abstract
As an important genetic material for life, DNA has been investigated widely in recent years, especially in interdisciplinary fields crossing nanomaterials and biomedical applications. It plays an important role because of its extraordinary molecular recognition capability and novel conformational polymorphism. DNA is also a powerful and versatile building block for the fabrication of nanostructures and nanodevices. Such DNA-based nanomaterials have also been successfully applied in various aspects ranging from biosensors to biomedicine and special logic gates, as well as in emerging molecular nanomachines. In this present mini-review, we briefly overview the recent progress in these fields. Furthermore, some challenges are also discussed in the conclusions and perspectives section, which aims to stimulate broader scientific interest in DNA nanotechnology and its biomedical applications. Recent progress in DNA-based nanomaterials is summarized, ranging from applications in biosensors, biomedicine/imaging, and molecular logic gates to emerging nanomachines, as well as future perspective discussions.![]()
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Affiliation(s)
- Zhiguang Suo
- Materials Genome Institute
- Shanghai University
- Shanghai 200444
- China
| | - Jingqi Chen
- Materials Genome Institute
- Shanghai University
- Shanghai 200444
- China
| | - Xialing Hou
- Materials Genome Institute
- Shanghai University
- Shanghai 200444
- China
| | - Ziheng Hu
- Materials Genome Institute
- Shanghai University
- Shanghai 200444
- China
| | - Feifei Xing
- Department of Chemistry
- College of Science
- Shanghai University
- Shanghai 200444
- China
| | - Lingyan Feng
- Materials Genome Institute
- Shanghai University
- Shanghai 200444
- China
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Recent advances in design of electrochemical affinity biosensors for low level detection of cancer protein biomarkers using nanomaterial-assisted signal enhancement strategies. J Pharm Biomed Anal 2018; 147:185-210. [DOI: 10.1016/j.jpba.2017.07.042] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 07/28/2017] [Accepted: 07/29/2017] [Indexed: 12/12/2022]
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