1
|
Ouyang R, Huang Y, Ma Y, Feng M, Liu X, Geng C, Zhao Y, Zhou S, Liu B, Miao Y. Nanomaterials promote the fast development of electrochemical MiRNA biosensors. RSC Adv 2024; 14:17929-17944. [PMID: 38836170 PMCID: PMC11149695 DOI: 10.1039/d3ra08258j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 05/18/2024] [Indexed: 06/06/2024] Open
Abstract
Cancer has become the leading cause of death worldwide. In recent years, molecular diagnosis has demonstrated great potential in the prediction and diagnosis of cancer. MicroRNAs (miRNAs) are short oligonucleotides that regulate gene expression and cell function and are considered ideal biomarkers for cancer detection, diagnosis, and patient prognosis. Therefore, the specific and sensitive detection of ultra-low quantities of miRNA is of great significance. MiRNA biosensors based on electrochemical technology have advantages of high sensitivity, low cost and fast response. Nanomaterials show great potential in miRNA electrochemical detection and promote the rapid development of electrochemical miRNA biosensors. Some methods and signal amplification strategies for miRNA detection in recent years are reviewed herein, followed by a discussion of the latest progress in electrochemical miRNA detection based on different types of nanomaterial. Future perspectives and challenges are also proposed for further exploration of nanomaterials to bring breakthroughs in electrochemical miRNA detection.
Collapse
Affiliation(s)
- Ruizhuo Ouyang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Ying Huang
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Yuanhui Ma
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Meina Feng
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Xi Liu
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Chongrui Geng
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Yuefeng Zhao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Shuang Zhou
- Cancer Institute, Tongji University School of Medicine Shanghai 200093 China
| | - Baolin Liu
- School of Health Science and Engineering, University of Shanghai for Science and Technology Shanghai 200093 China
| | - Yuqing Miao
- Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology Shanghai 200093 China
| |
Collapse
|
2
|
Saputra HA, Jannath KA, Kim KB, Park DS, Shim YB. Conducting polymer composite-based biosensing materials for the diagnosis of lung cancer: A review. Int J Biol Macromol 2023; 252:126149. [PMID: 37582435 DOI: 10.1016/j.ijbiomac.2023.126149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/17/2023]
Abstract
The development of a simple and fast cancer detection method is crucial since early diagnosis is a key factor in increasing survival rates for lung cancer patients. Among several diagnosis methods, the electrochemical sensor is the most promising one due to its outstanding performance, portability, real-time analysis, robustness, amenability, and cost-effectiveness. Conducting polymer (CP) composites have been frequently used to fabricate a robust sensor device, owing to their excellent physical and electrochemical properties as well as biocompatibility with nontoxic effects on the biological system. This review brings up a brief overview of the importance of electrochemical biosensors for the early detection of lung cancer, with a detailed discussion on the design and development of CP composite materials for biosensor applications. The review covers the electrochemical sensing of numerous lung cancer markers employing composite electrodes based on the conducting polyterthiophene, poly(3,4-ethylenedioxythiophene), polyaniline, polypyrrole, molecularly imprinted polymers, and others. In addition, a hybrid of the electrochemical biosensors and other techniques was highlighted. The outlook was also briefly discussed for the development of CP composite-based electrochemical biosensors for POC diagnostic devices.
Collapse
Affiliation(s)
- Heru Agung Saputra
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Khatun A Jannath
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Kwang Bok Kim
- Digital Health Care R&D Department, Korea Institute of Industrial Technology, Cheonan 31056, Republic of Korea
| | - Deog-Su Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Yoon-Bo Shim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea.
| |
Collapse
|
3
|
Ma N, Xu S, Wu W, Liu J. Electrochemiluminescence Aptasensor with Dual Signal Amplification by Silica Nanochannel-Based Confinement Effect on Nanocatalyst and Efficient Emitter Enrichment for Highly Sensitive Detection of C-Reactive Protein. Molecules 2023; 28:7664. [PMID: 38005386 PMCID: PMC10675231 DOI: 10.3390/molecules28227664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 11/26/2023] Open
Abstract
The rapid and sensitive detection of the important biomarker C-reactive protein (CRP) is of great significance for monitoring inflammation and tissue damage. In this work, an electrochemiluminescence (ECL) aptasensor was fabricated based on dual signal amplification for the sensitive detection of CRP in serum samples. The sensor was constructed by modifying a silica nanochannel array film (SNF) on a cost-effective indium tin oxide (ITO) electrode using the Stöber solution growth method. Gold nanoparticles (AuNPs) were grown in situ within the nanochannels using a simple electrodeposition method as a nanocatalyst to enhance the active electrode area as well as the ECL signal. The negatively charged nanochannels also significantly enriched the positively charged ECL emitters, further amplifying the signal. The recognition aptamer was covalently immobilized on the outer surface of SNF after modification with epoxy groups, constructing the aptasensor. In the presence of CRP, the formation of complexes on the recognitive interface led to a decrease in the diffusion of ECL emitters and co-reactants to the supporting electrode, resulting in a reduction in the ECL signal. Based on this mechanism, ECL detection of CRP was achieved with a linear range of 10 pg/mL to 1 μg/mL and a low limit of detection (7.4 pg/mL). The ECL aptasensor developed in this study offers advantages such as simple fabrication and high sensitivity, making promising applications in biomarker detection.
Collapse
Affiliation(s)
- Ning Ma
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China;
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shuai Xu
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| | - Weidong Wu
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China;
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiyang Liu
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China;
| |
Collapse
|
4
|
Wu Q, Li Z, Liang Q, Ye R, Guo S, Zeng X, Hu J, Li A. Ultrasensitive electrochemical biosensor for microRNA-377 detection based on MXene-Au nanocomposite and G-quadruplex nano-amplification strategy. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
5
|
Wang W, Ren J, Wang C, Zheng M, Ma Y, Yin X, Ding J, Hou C, Li T. Magnetic
Fe
3
O
4
/polypyrrole‐salicylaldehyde composite for efficient removal of Mn (
VII
) from aqueous solution by double‐layer adsorption. J Appl Polym Sci 2022. [DOI: 10.1002/app.52515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Wenjiao Wang
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| | - Jiajia Ren
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| | - Chuanjin Wang
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| | - Mingming Zheng
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| | - Yong Ma
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| | - Xunqian Yin
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| | - Jianxu Ding
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| | - Chunping Hou
- College of Materials Science and Engineering North Minzu University Yinchuan China
| | - Tingxi Li
- School of Material Science and Engineering Shandong University of Science and Technology Qingdao China
| |
Collapse
|
6
|
Photoelectrochemical detection of microRNAs based on target-triggered self-assembly of energy band position-matched CdS QDs and C 3N 4 nanosheets. Mikrochim Acta 2022; 189:65. [PMID: 35064308 DOI: 10.1007/s00604-022-05168-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/27/2021] [Indexed: 02/06/2023]
Abstract
An ultrasensitive photochemical biosensor based on the target miRNA-triggered catalytic hairpin assembly (CHA) reaction between Au nanoparticles (AuNPs)/C3N4 nanosheets and CdS quantum dots (QDs) was developed for the determination of miRNAs. Firstly, AuNPs/C3N4 nanosheets were immobilized onto a working glassy carbon electrode. Then, the hairpin probe 1 (H1) was loaded through Au-S bonding. Afterward, the unbound sites were blocked with 6-mercaptohexanol to avoid nonspecific adsorption. In the presence of the target miRNA, the CHA reaction between the H1 and hairpin probe 2-CdS QDs (H2-CdS QDs) could be triggered. As a result, the AuNPs/C3N4 nanosheet and CdS QDs were linked by the double helix structure H1-H2. Unlike the other CHA reactions, H2 used in this work is longer than H1 so that the AuNPs/C3N4 nanosheets could touch the CdS QDs. Given the matched energy band positions between the C3N4 nanosheet and CdS QDs, a strong photocurrent could be obtained after the CHA reaction was triggered by the target miRNA. In addition, p-type C3N4 nanosheets and n-type CdS QDs presented reduction photocurrents and oxidation photocurrents, respectively. Therefore, the photocurrents were vectors in this design that can eliminate the interference of nonspecific adsorption and avoid the generation of false-positive signals. Under the optimal conditions, the limit of detection was 92 aM. The constructed photoelectrochemical biosensor showed good reproducibility and selectivity in the analysis of serum samples, which indicates its great prospects in disease diagnostics and bioanalysis.
Collapse
|
7
|
Wu Y, Fu C, Shi W, Chen J. Recent advances in catalytic hairpin assembly signal amplification-based sensing strategies for microRNA detection. Talanta 2021; 235:122735. [PMID: 34517602 DOI: 10.1016/j.talanta.2021.122735] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 12/13/2022]
Abstract
Accumulative evidences have indicated that abnormal expression of microRNAs (miRNAs) is closely associated with many health disorders, making them be regarded as potentialbiomarkers for early clinical diagnosis. Therefore, it is extremely necessary to develop a highly sensitive, specific and reliable approach for miRNA analysis. Catalytic hairpin assembly (CHA) signal amplification is an enzyme-free toehold-mediated strand displacement method, exhibiting significant potential in improving the sensitivity of miRNA detection strategies. In this review, we first describe the potential of miRNAs as disease biomarkers and therapeutics, and summarize the latest advances in CHA signal amplification-based sensing strategies for miRNA monitoring. We describe the characteristics and mechanism of CHA signal amplification and classify the CHA-based miRNA sensing strategies into several categories based on the "signal conversion substance", including fluorophores, enzymes, nanomaterials, and nucleotide sequences. Sensing performance, limit of detection, merits and disadvantages of these miRNA sensing strategies are discussed. Moreover, the current challenges and prospects are also presented.
Collapse
Affiliation(s)
- Yan Wu
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China.
| | - Cuicui Fu
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China
| | - Wenbing Shi
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China
| | - Jinyang Chen
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Fuling, Chongqing, 408100, China.
| |
Collapse
|
8
|
Thapa K, Liu W, Wang R. Nucleic acid-based electrochemical biosensor: Recent advances in probe immobilization and signal amplification strategies. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2021; 14:e1765. [PMID: 34734485 DOI: 10.1002/wnan.1765] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 08/06/2021] [Accepted: 10/04/2021] [Indexed: 12/26/2022]
Abstract
With the increasing importance of accurate and early disease diagnosis and the development of personalized medicine, DNA-based electrochemical biosensor has attracted broad scientific and clinical interests in the past decades due to its unique hybridization specificity, fast response time, and potential for miniaturization. In order to achieve high detection sensitivity, the design of DNA electrochemical biosensors depends critically on the improvement of the accessibility of target molecules and the enhancement of signal readout. Here, we summarize the recent advances in DNA probe immobilization and signal amplification strategies with a special focus on DNA nanostructure-supported DNA probe immobilization method, which provides the opportunity to rationally control the distance between probes and keep them in upright confirmation, as well as the contribution of functional nanomaterials in enhancing the signal amplification. The next challenge of biosensors will be the fabrication of point-of-care devices for clinical testing. The advancement of multidisciplinary areas, including nanofabrication, material science, and biochemistry, has exhibited profound promise in achieving such portable sensing devices. This article is categorized under: Diagnostic Tools > Biosensing Diagnostic Tools > Diagnostic Nanodevices Biology-Inspired Nanomaterials > Nucleic Acid-Based Structures.
Collapse
Affiliation(s)
- Krishna Thapa
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA
| | - Wenyan Liu
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA.,Center for Research in Energy and Environment, Missouri University of Science and Technology, Rolla, Missouri, USA
| | - Risheng Wang
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri, USA
| |
Collapse
|
9
|
Ma X, Qian K, Ejeromedoghene O, Kandawa-Schulz M, Song W, Wang Y. p-Co-BDC/AuNPs-based multiple signal amplification for ultra-sensitive electrochemical determination of miRNAs. Anal Chim Acta 2021; 1183:338979. [PMID: 34627529 DOI: 10.1016/j.aca.2021.338979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/01/2021] [Accepted: 08/19/2021] [Indexed: 01/06/2023]
Abstract
In this work, we report AuNPs-decorated pyrolyzed Co-BDC nanosheets (p-Co-BDC/AuNPs) as high-performance electrocatalyst for developing an electrochemical platform. p-Co-BDC/AuNPs as a new electrocatalyst showed superior electrocatalytic activity towards the electrochemical oxidation of methylene blue (MB). Besides, magnetic p-Co-BDC/AuNPs can be well immobilized on the magnetic glassy carbon electrode without further assistance. The oxidation of MB can be reduced by ascorbic acid. Inspired by this phenomenon, an electrochemical biosensor was constructed based on multiple signal amplification for the diagnosis of miRNAs. Firstly, p-Co-BDC/AuNPs enhanced the electrochemical oxidation of MB. Then, strand displacement amplification reaction can form lots of double helix structure DNA to embed more MB molecules. Finally, ascorbic acid in the electrolyte was utilized to reduce the oxidation of MB and improve the electrochemical signal of MB electro-oxidation. The linear detection range for the detection of miRNAs is 100 aM to 10 nM, and the limit of detection is 86 aM. Furthermore, the constructed biosensor also displayed satisfactory selectivity, good reproducibility, and excellent recovery in the detection of real samples. We are convinced that our proposed multiple signal amplification strategy will provide more promising methods for the diagnosis of cancer.
Collapse
Affiliation(s)
- Xiangyu Ma
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Kun Qian
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | - Onome Ejeromedoghene
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China
| | | | - Wei Song
- Department of Chemistry and Biochemistry, University of Namibia, Windhoek, Namibia
| | - Yihong Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China.
| |
Collapse
|
10
|
Dzulkurnain NA, Mokhtar M, Rashid JIA, Knight VF, Wan Yunus WMZ, Ong KK, Mohd Kasim NA, Mohd Noor SA. A Review on Impedimetric and Voltammetric Analysis Based on Polypyrrole Conducting Polymers for Electrochemical Sensing Applications. Polymers (Basel) 2021; 13:2728. [PMID: 34451266 PMCID: PMC8401594 DOI: 10.3390/polym13162728] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/17/2022] Open
Abstract
Conducting polymers have been widely used in electrochemical sensors as receptors of the sensing signal's analytes and transducers. Polypyrrole (PPy) conducting polymers are highlighted due to their good electrical conductive properties, ease in preparation, and flexibility of surface characteristics. The objective of this review paper is to discuss the theoretical background of the two main types of electrochemical detection: impedimetric and voltammetric analysis. It also reviews the application and results obtained from these two electrochemical detections when utilizing PPy as a based sensing material in electrochemical sensor. Finally, related aspects in electrochemical sensor construction using PPy will also be discussed. It is anticipated that this review will provide researchers, especially those without an electrochemical analysis background, with an easy-to-understand summary of the concepts and technologies used in electrochemical sensor research, particularly those interested in utilizing PPy as a based sensing material.
Collapse
Affiliation(s)
- Nurul Akmaliah Dzulkurnain
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia; (N.A.D.); (J.I.A.R.)
| | - Marliyana Mokhtar
- Research Centre for Chemical Defence, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia; (M.M.); (V.F.K.); (K.K.O.); (N.A.M.K.)
| | - Jahwarhar Izuan Abdul Rashid
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia; (N.A.D.); (J.I.A.R.)
| | - Victor Feizal Knight
- Research Centre for Chemical Defence, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia; (M.M.); (V.F.K.); (K.K.O.); (N.A.M.K.)
| | - Wan Md Zin Wan Yunus
- Centre for Tropicalisation, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia;
| | - Keat Khim Ong
- Research Centre for Chemical Defence, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia; (M.M.); (V.F.K.); (K.K.O.); (N.A.M.K.)
| | - Noor Azilah Mohd Kasim
- Research Centre for Chemical Defence, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia; (M.M.); (V.F.K.); (K.K.O.); (N.A.M.K.)
| | - Siti Aminah Mohd Noor
- Department of Chemistry and Biology, Centre for Defence Foundation Studies, National Defence University of Malaysia, Sungai Besi Camp, Kuala Lumpur 57000, Malaysia; (N.A.D.); (J.I.A.R.)
| |
Collapse
|
11
|
Ma X, Qian K, Ejeromedoghene O, Kandawa-Schulz M, Song W, Wang Y. A label-free electrochemical platform based on a thionine functionalized magnetic Fe-N-C electrocatalyst for the detection of microRNA-21. Analyst 2021; 146:4557-4565. [PMID: 34251374 DOI: 10.1039/d1an00430a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Taking a composite of a nanomaterial and a signal molecule as a substrate material can provide a label-free electrochemical platform. Besides, the nanomaterial with a high catalytic activity towards the signal molecule can improve the sensitivity of the platform. Herein, a thionine functionalized Fe-N-C nanocomposite was employed as the substrate. Firstly, the electrocatalytic activity of Fe-N-C towards the electroreduction of thionine was explored. Then, an immobilization-free and label-free electrochemical platform for the determination of microRNA-21 based on Fe-N-C-thionine/Fe3O4@AuNPs was constructed. A magnetic glassy carbon electrode (MGCE) was used to keep the magnetic Fe-N-C-thionine/Fe3O4@AuNPs modified onto the surface of the MGCE. Fe-N-C and Fe3O4 nanoparticles can co-catalyze the electroreduction of thionine and a strong electrochemical reduction signal of thionine could be realized in the differential pulse voltammetry (DPV) test. Also, a catalytic hairpin assembly (CHA) reaction was utilized to enhance the sensitivity of the developed electrochemical biosensor. Besides, the developed biosensor shows excellent specificity and reproducibility in the test of human serum samples, indicating its wide application prospects in the early-stage diagnosis of tumors.
Collapse
Affiliation(s)
- Xiangyu Ma
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China.
| | - Kun Qian
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China.
| | - Onome Ejeromedoghene
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China.
| | | | - Wei Song
- Department of Chemistry and Biochemistry, University of Namibia, Windhoek, Namibia
| | - Yihong Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China.
| |
Collapse
|
12
|
Zhang D, Yu X, Wu L, Jin H, Wei M. Ultrasensitive electrochemical detection of Pb2+ based on DNAzyme coupling with exonuclease III –Assisted target recycling. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
13
|
Yáñez-Sedeño P, González-Cortés A, Campuzano S, Pingarrón JM. Multimodal/Multifunctional Nanomaterials in (Bio)electrochemistry: Now and in the Coming Decade. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2556. [PMID: 33352731 PMCID: PMC7766190 DOI: 10.3390/nano10122556] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/13/2020] [Accepted: 12/16/2020] [Indexed: 01/15/2023]
Abstract
Multifunctional nanomaterials, defined as those able to achieve a combined effect or more than one function through their multiple functionalization or combination with other materials, are gaining increasing attention in the last years in many relevant fields, including cargo targeted delivery, tissue engineering, in vitro and/or in vivo diseases imaging and therapy, as well as in the development of electrochemical (bio)sensors and (bio)sensing strategies with improved performance. This review article aims to provide an updated overview of the important advances and future opportunities exhibited by electrochemical biosensing in connection to multifunctional nanomaterials. Accordingly, representative aspects of recent approaches involving metal, carbon, and silica-based multifunctional nanomaterials are selected and critically discussed, as they are the most widely used multifunctional nanomaterials imparting unique capabilities in (bio)electroanalysis. A brief overview of the main remaining challenges and future perspectives in the field is also provided.
Collapse
Affiliation(s)
- Paloma Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (A.G.-C.); (J.M.P.)
| | | | - Susana Campuzano
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain; (A.G.-C.); (J.M.P.)
| | | |
Collapse
|