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Huang Y, Pu X, Qian H, Chuang CJ, Dong S, Wu J, Xue J, Cheng W, Ding S, Li S. Optical fiber surface plasmon resonance sensor using electroless-plated gold film for thrombin detection. Anal Bioanal Chem 2024; 416:1469-1483. [PMID: 38236393 DOI: 10.1007/s00216-024-05150-x] [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: 11/20/2023] [Revised: 12/27/2023] [Accepted: 01/11/2024] [Indexed: 01/19/2024]
Abstract
This paper describes the simple and label-free detection of thrombin using optical fiber surface plasmon resonance (SPR) sensors based on gold films prepared by the cost-effective method of electroless plating. The plating conditions for simultaneously obtaining gold film on cylindrical core and end surfaces of an optical fiber suitable for measurement were optimized. The fabricated sensor exhibited a linear refractive index sensitivity of 2150 nm/RIU and 7.136 (a.u.)/RIU in the refractive index of 1.3329-1.3605 interrogated by resonance wavelength and amplitude methods respectively and a single wavelength monitoring method was proposed to investigate the sensing performance of this sensor. Polyadenine diblock and thiolated thrombin aptamers were immobilized on gold nanoparticles and gold films respectively to implement a sandwich optical fiber assay for thrombin. The developed optical fiber SPR sensors were successfully used in the determination of thrombin down to 0.56 nM over a wide range from 2 to 100 nM and showed good selectivity for thrombin, which indicated their potential clinical applications for biomedical samples.
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Affiliation(s)
- Yu Huang
- Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, 400714, China.
| | - Xiaoyin Pu
- Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China
- Chongqing School, University of Chinese Academy of Sciences, Chongqing, 400714, China
| | - Husun Qian
- Department of Laboratory Medicine, The Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Chin-Jung Chuang
- Department of Opto-Electronic Engineering, National Dong Hwa University, Hualien, 97401, Taiwan, China
| | - Shanshan Dong
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China
| | - Jiangling Wu
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China.
| | - Jianjiang Xue
- Department of Clinical Laboratory, Medical Sciences Research Center, University-Town Hospital of Chongqing Medical University, Chongqing, 401331, China
| | - Wei Cheng
- The Center for Clinical Molecular Medical Detection, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Shijia Ding
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Shengqiang Li
- Clinical Laboratory, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300000, China.
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300000, China.
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Li S, Zhang H, Zhu M, Kuang Z, Li X, Xu F, Miao S, Zhang Z, Lou X, Li H, Xia F. Electrochemical Biosensors for Whole Blood Analysis: Recent Progress, Challenges, and Future Perspectives. Chem Rev 2023. [PMID: 37262362 DOI: 10.1021/acs.chemrev.1c00759] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Whole blood, as one of the most significant biological fluids, provides critical information for health management and disease monitoring. Over the past 10 years, advances in nanotechnology, microfluidics, and biomarker research have spurred the development of powerful miniaturized diagnostic systems for whole blood testing toward the goal of disease monitoring and treatment. Among the techniques employed for whole-blood diagnostics, electrochemical biosensors, as known to be rapid, sensitive, capable of miniaturization, reagentless and washing free, become a class of emerging technology to achieve the target detection specifically and directly in complex media, e.g., whole blood or even in the living body. Here we are aiming to provide a comprehensive review to summarize advances over the past decade in the development of electrochemical sensors for whole blood analysis. Further, we address the remaining challenges and opportunities to integrate electrochemical sensing platforms.
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Affiliation(s)
- Shaoguang Li
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Hongyuan Zhang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Man Zhu
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zhujun Kuang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xun Li
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Fan Xu
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Siyuan Miao
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Zishuo Zhang
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Xiaoding Lou
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Hui Li
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
| | - Fan Xia
- State Key Laboratory of Biogeology and Environmental Geology, Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China
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Guo WJ, Yang XY, Wu Z, Zhang ZL. A colorimetric and electrochemical dual-mode biosensor for thrombin using a magnetic separation technique. J Mater Chem B 2021; 8:3574-3581. [PMID: 31746938 DOI: 10.1039/c9tb02170a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In general, protein detection relies primarily on enzyme-linked immunosorbent assays. Here, we constructed a colorimetric and electrochemical dual-mode biosensor for thrombin detection based on the mechanism of aptamer recognition. Magnetic nanobeads (MBs) were used as carriers for separation and enrichment to quickly capture thrombin (TB) in the complex matrix. Also, the combination of MBs and the magnetic electrode array (MEA) effectively avoided the poisoning of the electrode by biological samples. Furthermore, hybridization chain reaction (HCR) was indirectly used to achieve amplification of TB. A large number of horseradish peroxidases (HRPs) were coupled with the amplified long nucleic acid fragments. Based on the color and current response of the substrate TMB catalyzed by HRP, a dual-mode detection system for thrombin was established to ensure the accuracy of the test results. The method had a minimum resolution of 10 nM to the naked eye and an electrochemical detection limit as low as 0.35 nM. In addition, the sensor provided good anti-interference ability in a complex matrix and showed great potential to detect TB in complex samples.
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Affiliation(s)
- Wen-Jing Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China.
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4
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A fluorometric assay of thrombin using magnetic nanoparticles and enzyme-free hybridization chain reaction. Mikrochim Acta 2020; 187:295. [PMID: 32347383 DOI: 10.1007/s00604-020-04279-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 04/13/2020] [Indexed: 10/24/2022]
Abstract
A fluorescence method based on functionalized magnetic nanoparticles (FMNPs) and hybridization chain reaction (HCR) is developed for the enzyme-free amplified determination of thrombin. In the proposed design, aptamer against thrombin was hybridized with the capture DNA-modified magnetic nanoparticles to yield the FMNPs. In the presence of thrombin, aptamers are released due to the specific and high-affinity binding between thrombin and its aptamer. The exposed capture DNA subsequently hybridized with the partial sequence of helper DNA, and the vacant sequence of helper DNA further hybridized with HCR products which is pre-formed by the alternate hybridization of single-stranded DNAs (H1 and H2). The immobilized HCR products were then labeled with YOYO-1 for fluorescence measurement. Fluorescence signal intensity of labeled YOYO-1 was measured at an emission wavelength of 519 nm (excitation under 488 nm) and used for calibration. By taking advantage of HCR amplification, this direct assay strategy showed a linear response in the 20- to 200-pM concentration range, and the limit of detection is 9.2 pM which is about 3-orders of magnitude lower than the serum thrombin concentration (10 nM) that triggers blood clotting. This developed method can efficiently differentiate the target protein from a protein matrix, and it is verified by determination of thrombin in spiked serum samples with recoveries in the range of 94.5-103.3%. Graphical abstract A fluorometry method for thrombin detection using magnetic nanoparticles and enzyme-free hybridization chain reaction.
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Yang R, Zou K, Zhang X, Du C, Chen J. Target-induced photocurrent-polarity switching: a highly selective and sensitive photoelectrochemical sensing platform. Chem Commun (Camb) 2019; 55:8939-8942. [DOI: 10.1039/c9cc03973b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Based on target-induced photocurrent-polarity switching, a highly selective and sensitive photoelectrochemical sensing platform was developed.
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Affiliation(s)
- Ruiying Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
- Changsha
- P. R. China
| | - Kang Zou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
- Changsha
- P. R. China
| | - Xiaohua Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
- Changsha
- P. R. China
| | - Cuicui Du
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
- Changsha
- P. R. China
| | - Jinhua Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
- Changsha
- P. R. China
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6
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Bayramoglu G, Ozalp C, Oztekin M, Guler U, Salih B, Arica MY. Design of an aptamer-based magnetic adsorbent and biosensor systems for selective and sensitive separation and detection of thrombin. Talanta 2018; 191:59-66. [PMID: 30262099 DOI: 10.1016/j.talanta.2018.08.048] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 08/11/2018] [Accepted: 08/17/2018] [Indexed: 01/18/2023]
Abstract
An aptasensor was designed for sensitive detection of thrombin using in biological fluids by integrating a magnetic aptamer-microbeads. To achieve this goal, the surface of gold plated QCM crystals was coated with L-cysteine and a thrombin binding DNA aptamer was immobilized on the L-cysteine coated QCM crystals surface via glutaraldehyde coupling. The binding interactions of thrombin to QCM crystals were characterized. Magnetic poly(2-hydroxyethyl methacrylate-ethylene glycol dimethacrylate-vinylene carbonate), Mp(HEMA-EGDMA-VC) microbeads were synthesized and thrombin binding aptamer (TBA) was immobilized. The Mp(HEMA-EGDMA-VC)-TBA microbeads were effectively adsorbed thrombin from serum in a relatively short contact time (ca. 5.0 min), and the eluted protein from Mp(HEMA-EGDMA-VC)-TBA was transferred to the QCM aptasensor that showed a specific detection of thrombin from serum. The detection limit of thrombin using aptasensor was 1.00 nmol L-1. The calculation dissociation constant of the aptasensor was 68.5 nmol L-1. The selectivity of the aptasensor system was tested with three different proteins (i.e., elastin, immunoglobulin G (IgG) and human serum albumin (HSA)) and showed high specificity to thrombin. The aptasensor was regenerated by washing with NaOH solution, and repeatedly used until 20 cycles without a change in the performance.
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Affiliation(s)
- Gulay Bayramoglu
- Biochemical Processing and Biomaterial Research Laboratory, Gazi University, 06500 Teknikokullar, Ankara, Turkey; Department of Chemistry, Faculty of Sciences, Gazi University, 06500 Teknikokullar, Ankara, Turkey.
| | - Cengiz Ozalp
- Department of Bioengineering, Konya Food & Agriculture University, 42080 Konya, Turkey; Research and Development Center for Diagnostic Kits (KIT-ARGEM), Konya Food and Agriculture University, 42080 Konya, Turkey
| | - Merve Oztekin
- Biochemical Processing and Biomaterial Research Laboratory, Gazi University, 06500 Teknikokullar, Ankara, Turkey
| | - Ulku Guler
- Hacettepe University, Department of Chemistry, 06800 Beytepe, Ankara, Turkey
| | - Bekir Salih
- Hacettepe University, Department of Chemistry, 06800 Beytepe, Ankara, Turkey
| | - M Yakup Arica
- Biochemical Processing and Biomaterial Research Laboratory, Gazi University, 06500 Teknikokullar, Ankara, Turkey
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Target-programmed and autonomous proximity binding aptasensor for amplified electronic detection of thrombin. Biosens Bioelectron 2018; 117:743-747. [PMID: 30014949 DOI: 10.1016/j.bios.2018.06.069] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/13/2018] [Accepted: 06/29/2018] [Indexed: 11/22/2022]
Abstract
The development of sensitive and simple approaches capable of monitoring trace amounts of protein biomarkers is appealing for disease diagnosis and treatment. Towards this end, we have developed an electrochemical sensing platform for sensitive and simple detection of protein biomarkers by using thrombin as the model target molecules via a target-programmed proximity binding amplification approach. The binding of thrombin to the aptamer sequences in the partial dsDNA duplex probes induces the release of the ssDNA trigger strands, which catalyze subsequent assembly formation of many methylene blue (MB)-tagged proximate DNA motifs with the presence of the DNA fuel strands through cascaded toehold-mediated strand displacement reactions. Due to the proximity-binding effect, these MB-tagged proximate DNA motifs anneal with the capture probes on the sensor surface with significantly enhanced stability against the corresponding single component counterpart, thereby pulling the MB tags close to the sensor surface and generating substantially amplified signal responses for sensitive determination of thrombin down to 23.6 pM. In addition, such aptasensor can specifically discriminate thrombin from other interference proteins, and can also be utilized to monitor thrombin in diluted serum samples, demonstrating its great potential for sensitive determination of proteins for early disease diagnosis.
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8
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Recent Advances in Electrochemical-Based Sensing Platforms for Aflatoxins Detection. CHEMOSENSORS 2016. [DOI: 10.3390/chemosensors5010001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Fang S, Dong X, Liu S, Penng D, He L, Wang M, Fu G, Feng X, Zhang Z. A label-free multi-functionalized electrochemical aptasensor based on a Fe3O4@3D-rGO@plasma-polymerized (4-vinyl pyridine) nanocomposite for the sensitive detection of proteins in whole blood. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.06.128] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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10
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Wang Y, Zhang Y, Yan T, Fan D, Du B, Ma H, Wei Q. Ultrasensitive electrochemical aptasensor for the detection of thrombin based on dual signal amplification strategy of Au@GS and DNA-CoPd NPs conjugates. Biosens Bioelectron 2016; 80:640-646. [PMID: 26908183 DOI: 10.1016/j.bios.2016.02.042] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 02/15/2016] [Indexed: 10/22/2022]
Abstract
In this work, an ultrasensitive electrochemical aptasensor for the detection of thrombin was developed based on Au nanoparticles decorated graphene sheet (Au@GS) and CoPd binary nanoparticles (CoPd NPs). A sulfydryl-labeled thrombin capture probe (Apt1) and a biotin-labeled thrombin reporter probe (Apt2) were designed to achieve a sandwich-type strategy. Au@GS was used as a sensing platform for the facile immobilization of Apt1 through Au-S bond, forming a sensing interface for thrombin. The specific recognition of thrombin induced the attachment of Apt2-CoPd NPs to the electrode. The labeled CoPd NPs showed good catalytic properties toward the reduction of H2O2, resulting in an amperometric signal. The amperometric response was correlated to the thrombin concentration in sample solutions. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) confirmed the successful fabrication of the aptasensor. A linear response to thrombin in the range of 0.01-2.00 ng mL(-1) with a low detection limit (5 pg mL(-1)) was achieved. The proposed aptasensor showed good selectivity, good reproducibility and acceptable stability. This proposed strategy may find many potential applications in the detection of other biomolecules.
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Affiliation(s)
- Yaoguang Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Yong Zhang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Tao Yan
- School of Resources and Environment, University of Jinan, Jinan 250022, China
| | - Dawei Fan
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China; School of Resources and Environment, University of Jinan, Jinan 250022, China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
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Tian R, Chen X, Li Q, Yao C. An electrochemical aptasensor electrocatalyst for detection of thrombin. Anal Biochem 2016; 500:73-9. [PMID: 26869084 DOI: 10.1016/j.ab.2016.01.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 01/25/2016] [Accepted: 01/28/2016] [Indexed: 11/17/2022]
Abstract
This work reports a novel signal amplification strategy based on three-dimensional ordered macroporous C60-poly(3,4-ethylenedioxythiophene)-1-butyl-3-methylimidazolium hexafluorophosphate (3DOM C60-PEDOT-[BMIm][BF6]) for ultrasensitive detection of thrombin by cascade catalysis of Au-PEDOT@SiO2 microspheres and alcohol dehydrogenase (ADH). Au-PEDOT@SiO2 microspheres were constructed not only as nanocarriers to anchor the large amounts of secondary thrombin aptamers but also as nanocatalysts to catalyze the oxidation of ethanol efficiently. Significantly, the electrochemical signal was greatly enhanced based on cascade catalysis: First, ADH catalyzed the oxidation of ethanol to acetaldehyde with the concomitant generation of NADH in the presence of β-nicotinamide adenine dinucleotide hydrate (NAD(+)). Then, gold nanoparticles (AuNPs) as nanocatalysts could effectively catalyze NADH to produce NAD(+) with the help of PEDOT as redox probe. Under the optimal conditions, the proposed aptasensor exhibits a linear range of 2 × 10(-13) to 2 × 10(-8) M with a low detection limit of 2 × 10(-14) M for thrombin detection and shows high sensitivity and good specificity.
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Affiliation(s)
- Rong Tian
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China; Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China.
| | - Xiaojun Chen
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China
| | - Qingwen Li
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, People's Republic of China
| | - Cheng Yao
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, People's Republic of China.
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Mao Y, Liu J, He D, He X, Wang K, Shi H, Wen L. Aptamer/target binding-induced triple helix forming for signal-on electrochemical biosensing. Talanta 2015; 143:381-387. [PMID: 26078174 DOI: 10.1016/j.talanta.2015.05.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 04/28/2015] [Accepted: 05/04/2015] [Indexed: 12/27/2022]
Abstract
Owing to its diversified structures, high affinity, and specificity for binding a wide range of non-nucleic acid targets, aptamer is a useful molecular recognition tool for the design of various biosensors. Herein, we report a new signal-on electrochemical biosensing platform which is based on an aptamer/target binding-induced strand displacement and triple-helix forming. The biosensing platform is composed of a signal transduction probe (STP) modified with a methylene blue (MB) and a sulfhydryl group, a triplex-forming oligonucleotides probe (TFO) and a target specific aptamer probe (Apt). Through hybridization with the TFO probe and the Apt probe, the self-assembled STP on Au electrode via Au-S bonding keeps its rigid structure. The MB on the STP is distal to the Au electrode surface. It is eT off state. Target binding releases the Apt probe and liberates the end of the MB tagged STP to fold back and form a triplex-helix structure with TFO (STP/TFO/STP), allowing MB to approach the Au electrode surface and generating measurable electrochemical signals (eT ON). As test for the feasibility and universality of this signal-on electrochemical biosensing platform, two aptamers which bind to adenosine triphosphate (ATP) and human α-thrombin (Tmb), respectively, are selected as models. The detection limit of ATP was 7.2 nM, whereas the detection limit of Tmb was 0.86 nM.
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Affiliation(s)
- Yinfei Mao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, PR China
| | - Jinquan Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, PR China
| | - Dinggen He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, PR China
| | - Xiaoxiao He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, PR China.
| | - Kemin Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, PR China.
| | - Hui Shi
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, PR China
| | - Li Wen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, PR China
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13
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Choi D, Jeong H, Kim K. Electrochemical thrombin detection based on the direct interaction of target proteins and graphene oxide as an indicator. Analyst 2015; 139:1331-3. [PMID: 24479127 DOI: 10.1039/c3an02197a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Target protein-directed adsorption of graphene oxide (GO) as an electroactive indicator was employed for electrochemical detection of thrombin. The method was highly sensitive and the detection limit was as low as 9.7 pg ml(-1).
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Affiliation(s)
- Dongcheol Choi
- Department of Chemistry, Incheon National University, Incheon 406-772, Republic of Korea.
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14
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Simmons SC, Jämsä H, Silva D, Cortez CM, McKenzie EA, Bitu CC, Salo S, Nurmenniemi S, Nyberg P, Risteli J, deAlmeida CEB, Brenchley PEC, Salo T, Missailidis S. Anti-heparanase aptamers as potential diagnostic and therapeutic agents for oral cancer. PLoS One 2014; 9:e96846. [PMID: 25295847 PMCID: PMC4189786 DOI: 10.1371/journal.pone.0096846] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 04/11/2014] [Indexed: 12/13/2022] Open
Abstract
Heparanase is an endoglycosidase enzyme present in activated leucocytes, mast cells, placental tissue, neutrophils and macrophages, and is involved in tumour metastasis and tissue invasion. It presents a potential target for cancer therapies and various molecules have been developed in an attempt to inhibit the enzymatic action of heparanase. In an attempt to develop a novel therapeutic with an associated diagnostic assay, we have previously described high affinity aptamers selected against heparanase. In this work, we demonstrated that these anti-heparanase aptamers are capable of inhibiting tissue invasion of tumour cells associated with oral cancer and verified that such inhibition is due to inhibition of the enzyme and not due to other potentially cytotoxic effects of the aptamers. Furthermore, we have identified a short 30 bases aptamer as a potential candidate for further studies, as this showed a higher ability to inhibit tissue invasion than its longer counterpart, as well as a reduced potential for complex formation with other non-specific serum proteins. Finally, the aptamer was found to be stable and therefore suitable for use in human models, as it showed no degradation in the presence of human serum, making it a potential candidate for both diagnostic and therapeutic use.
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Affiliation(s)
- Suzanne C. Simmons
- Department of Chemistry and Analytical Sciences, The Open University, Milton Keynes, United Kingdom
| | - Hannaleena Jämsä
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland
- Medical Research Center and Oulu University Hospital, Oulu, Finland
| | - Dilson Silva
- Institute of Mathematics and Statistics, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Celia M. Cortez
- Institute of Mathematics and Statistics, Rio de Janeiro State University, Rio de Janeiro, Brazil
| | - Edward A. McKenzie
- Manchester Institute of Biotechnology, University of Manchester, Manchester, United Kingdom
| | - Carolina C. Bitu
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland
- Medical Research Center and Oulu University Hospital, Oulu, Finland
| | - Sirpa Salo
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland
| | - Sini Nurmenniemi
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland
| | - Pia Nyberg
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland
- Medical Research Center and Oulu University Hospital, Oulu, Finland
| | - Juha Risteli
- Institute of Diagnostics, Department of Clinical Chemistry, University of Oulu, Oulu, Finland
| | - Carlos E. B. deAlmeida
- Department of Chemistry and Analytical Sciences, The Open University, Milton Keynes, United Kingdom
- Laboratório de Radiobiologia, Instituto de Radioproteção e Dosimetria, Rio de Janeiro, Brazil
| | | | - Tuula Salo
- Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, Finland
- Medical Research Center and Oulu University Hospital, Oulu, Finland
- Graduate Program in Estomatopatologia, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
- Institute of Dentistry, University of Helsinki, Helsinki, Finland
- * E-mail: (SM); (TS)
| | - Sotiris Missailidis
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail: (SM); (TS)
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15
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Evtugyn G, Porfireva A, Stepanova V, Sitdikov R, Stoikov I, Nikolelis D, Hianik T. Electrochemical Aptasensor Based on Polycarboxylic Macrocycle Modified with Neutral Red for Aflatoxin B1 Detection. ELECTROANAL 2014. [DOI: 10.1002/elan.201400328] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Deng B, Lin Y, Wang C, Li F, Wang Z, Zhang H, Li XF, Le XC. Aptamer binding assays for proteins: the thrombin example--a review. Anal Chim Acta 2014; 837:1-15. [PMID: 25000852 DOI: 10.1016/j.aca.2014.04.055] [Citation(s) in RCA: 257] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 04/26/2014] [Accepted: 04/28/2014] [Indexed: 12/14/2022]
Abstract
Experimentally selected single-stranded DNA and RNA aptamers are able to bind to specific target molecules with high affinity and specificity. Many analytical methods make use of affinity binding between the specific targets and their aptamers. In the development of these methods, thrombin is the most frequently used target molecule to demonstrate the proof-of-principle. This paper critically reviews more than one hundred assays that are based on aptamer binding to thrombin. This review focuses on homogeneous binding assays, electrochemical aptasensors, and affinity separation techniques. The emphasis of this review is placed on understanding the principles and unique features of the assays. The principles of most assays for thrombin are applicable to the determination of other molecular targets.
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Affiliation(s)
- Bin Deng
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2G3, Canada
| | - Yanwen Lin
- Department of Chemistry, University of Alberta, Edmonton, AB, T6G 2G2, Canada
| | - Chuan Wang
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2G3, Canada
| | - Feng Li
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2G3, Canada
| | - Zhixin Wang
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2G3, Canada
| | - Hongquan Zhang
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2G3, Canada
| | - Xing-Fang Li
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2G3, Canada
| | - X Chris Le
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, T6G 2G3, Canada; Department of Chemistry, University of Alberta, Edmonton, AB, T6G 2G2, Canada.
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17
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Li H, Qiang W, Wang C, Vuki M, Xu D. Ultrasensitive and fast fluorescent bioassay based on fluorescence enhancement of silver nanoparticles. Analyst 2014; 138:7376-83. [PMID: 24165800 DOI: 10.1039/c3an01270k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
An ultrasensitive, fast and specific fluorescent platform for protein detection is developed. In this protocol, silver nanoparticles were conjugated with paramagnetic particles (MPs-Ag) for target capture, concentration and separation; fluorescent dyes functionalized silver nanoparticles (Tag) for generating signals. The presented method is highly sensitive and specific with a detection limit of 2.2 pM for thrombin, and no significant interference was observed for other proteins such as human serum albumin (HSA), lysozyme and IgG. This novel approach combining the magnetic separation and concentration of MPs-Ag, aptamer recognition and fluorescence enhancement of Tag, can be successfully used to enhance the sensitivity of detecting ultra-low levels of target proteins or biomolecules.
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Affiliation(s)
- Hui Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, China.
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18
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Hasanzadeh M, Shadjou N, Eskandani M, de la Guardia M, Omidinia E. Electrochemical nano-immunosensing of effective cardiac biomarkers for acute myocardial infarction. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.04.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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19
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Wang G, He X, Zhu Y, Chen L, Wang L, Zhang X. G-Quadruplex-Linked Supersandwich DNA Structure for Electrochemical Amplified Detection of Thrombin. ELECTROANAL 2013. [DOI: 10.1002/elan.201300184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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20
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Oroval M, Climent E, Coll C, Eritja R, Aviñó A, Marcos MD, Sancenón F, Martínez-Máñez R, Amorós P. An aptamer-gated silica mesoporous material for thrombin detection. Chem Commun (Camb) 2013; 49:5480-2. [PMID: 23660687 DOI: 10.1039/c3cc42157k] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An aptamer-capped mesoporous material for the selective and sensitive detection of α-thrombin in human plasma and serum has been prepared and characterised.
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Affiliation(s)
- Mar Oroval
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universidad Politécnica de Valencia - Universidad de Valencia, Spain
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21
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Aptamer/thrombin/aptamer-AuNPs sandwich enhanced surface plasmon resonance sensor for the detection of subnanomolar thrombin. Biosens Bioelectron 2013; 47:265-70. [PMID: 23584389 DOI: 10.1016/j.bios.2013.02.004] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/17/2013] [Accepted: 02/04/2013] [Indexed: 11/23/2022]
Abstract
A sensitive and selective aptamer/thrombin/aptamer-AuNPs sandwich enhanced surface plasmon resonance (SPR) sensor has been developed for real-time detection of subnanomolar thrombin. In this protocol, one thiol-modified thrombin aptamer (TBA29) was immobilized on gold nanoparticles (AuNPs) via Au-S bonding. The other biotinylated thrombin aptamer (TBA15) was grafted onto streptavidin pretreated SPR gold film through biotin-streptavidin recognition. The presence of thrombin would then induce the formation of a double aptamer sandwich structure on the SPR gold film and results in obvious enhancement of SPR signal, which was proportional to the concentration of thrombin. This proposed assay took advantage of sandwich binding of two affinity aptamers for increased specificity, AuNPs for signal enhancement, as well as SPR signal readout for real-time detection. The SPR signal had a good linear relationship with thrombin concentration in the range of 0.1-75nM, and the detection limit for thrombin was determined to be as low as 0.1nM. It was found that aptamer functionalized AuNPs enhanced the signal of SPR response and thus increased the limit of detection 4-fold and 5-fold compared to direct detection format without AuNPs. This sensor also showed good selectivity for thrombin without being affected by some other proteins, such as BSA and lysozyme. Furthermore, this proposed SPR sensing platform was successfully applied to thrombin analysis in diluted human serum samples.
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22
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Yan G, Wang Y, He X, Wang K, Liu J, Du Y. A highly sensitive label-free electrochemical aptasensor for interferon-gamma detection based on graphene controlled assembly and nuclease cleavage-assisted target recycling amplification. Biosens Bioelectron 2013; 44:57-63. [PMID: 23391707 DOI: 10.1016/j.bios.2013.01.010] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 01/05/2013] [Accepted: 01/07/2013] [Indexed: 11/15/2022]
Abstract
We report here a highly sensitive and label-free electrochemical aptasensing technology for detection of interferon-gamma (IFN-γ) based on graphene controlled assembly and enzyme cleavage-assisted target recycling amplification strategy. In this work, in the absence of IFN-γ, the graphene could not be assembled onto the 16-mercaptohexadecanoic acid (MHA) modified gold electrode because the IFN-γ binding aptamer was strongly adsorbed on the graphene due to the strong π-π interaction. Thus the electronic transmission was blocked (eT OFF). However, the presence of target IFN-γ and DNase I led to desorption of aptamer from the graphene surface and further cleavage of the aptamer, thereby releasing the IFN-γ. The released IFN-γ could then re-attack other aptamers on the graphene, resulting in the successive release of the aptamers from the graphene. At the same time, the "naked" graphene could be assembled onto the MHA modified gold electrode with hydrophobic interaction and π-conjunction, mediating the electron transfer between the electrode and the electroactive indicator. Then, measurable electrochemical signals were generated (eT ON), which was related to the concentration of the IFN-γ. By taking advantages of graphene and enzyme cleavage-assisted target recycling amplification, the developed label-free electrochemical aptasensing technology showed a linear response to concentration of IFN-γ range from 0.1 to 0.7 pM. The detection limit of IFN-γ was determined to be 0.065 pM. Moreover, this aptasensor shows good selectivity toward the target in the presence of other relevant proteins. Our strategy thus opens new opportunities for label-free and amplified detection of other kinds of proteins.
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Affiliation(s)
- Genping Yan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha 410082, PR China
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23
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Xie S, Chai Y, Yuan R, Bai L, Yuan Y, Wang Y. A dual-amplification aptasensor for highly sensitive detection of thrombin based on the functionalized graphene-Pd nanoparticles composites and the hemin/G-quadruplex. Anal Chim Acta 2012; 755:46-53. [PMID: 23146393 DOI: 10.1016/j.aca.2012.10.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 09/26/2012] [Accepted: 10/02/2012] [Indexed: 11/18/2022]
Abstract
In this work, an advanced sandwich-type electrochemical aptasensor for thrombin was proposed by integrating hemin/G-quadruplex with functionalized graphene-Pd nanoparticles composites (PdNPs-RGs). The hemin/G-quadruplex formed by intercalating hemin into thrombin binding aptamer (TBA), firstly acted as a NADH oxidase, assisting the oxidation of NADH to NAD(+) accompanying with the generation of H(2)O(2) in the presence of dissolved O(2). Subsequently, the hemin/G-quadruplex acted as HRP-mimicking DNAzyme that rapidly bioelectrocatalyze the reduction of the produced H(2)O(2). At the same time, the Pd nanoparticles supported on p-iodoaniline functionalized graphene were also adopted to catalyze the reduction of H(2)O(2). Thus, with the dual catalysis, a dramatically amplified electrochemical signal could be obtained. Besides, the avidin-biotin system for binding aptamer sequences on electrodes not only improved the sensitivity of thrombin analysis but also obtained an acceptable repeatability of the aptasensor. With several factors mentioned above, a wide linear ranged from 0.1 pM to 50 nM was acquired with a relatively low detection limit of 0.03 pM (defined as S/N=3). These excellent performances provided our approach a promising way for ultrasensitive assay in electrochemical aptasensors.
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Affiliation(s)
- Shunbi Xie
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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25
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Li B, Ellington* AD. Electrochemical Techniques as Powerful Readout Methods for Aptamer-based Biosensors. DNA CONJUGATES AND SENSORS 2012. [DOI: 10.1039/9781849734936-00211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Aptamers are single-stranded nucleic acids that can be selected in vitro with special folding structures to bind to many different small-molecule, protein, and cellular targets. Over the past two decades, aptamers have become novel promising recognition elements for the fabrication of biosensors. These ‘aptasensors’ have several advantages over antibodies in that they are relatively easy to synthesise or modify in vitro, and can be appended with linkers and reporters for adaptation to various sensing strategies. In this chapter, we introduce the various electrochemical techniques that can be used as powerful readout methods for aptasensors, providing a brief introduction to aptamers and related electrochemical techniques, and then a detailed description of various branches within the field, including labelled strategies, unlabelled strategies, and enzyme-amplified strategies. For each type of approach, several basic and improved design principles will be addressed. It is hoped that, through this discussion, readers will get a sense of how several variables (aptamers, targets and redox reporters) are successfully combined with electrochemical techniques in order to produce a series of sensing platforms with high selectivity and sensitivity.
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Affiliation(s)
- Bingling Li
- Institute for Cellular and Molecular Biology Center for Systems and Synthetic Biology, Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712 USA
| | - Andrew D. Ellington*
- Institute for Cellular and Molecular Biology Center for Systems and Synthetic Biology, Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712 USA
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26
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Wen Y, Xu L, Wang W, Wang D, Du H, Zhang X. Highly efficient remote controlled release system based on light-driven DNA nanomachine functionalized mesoporous silica. NANOSCALE 2012; 4:4473-4476. [PMID: 22751906 DOI: 10.1039/c2nr31101a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
An intelligent photoswitchable single-molecule nanomachine with DNA hairpin-loop structure was designed by the incorporation of azobenzene groups in DNA sequences, which was studied by fluorescence resonance energy transfer (FRET) and attached onto the surface of mesoporous silica. Based on the photo-induced conformational transformation of DNA, highly efficient controlled release was realized.
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Affiliation(s)
- Yongqiang Wen
- Research Center for Bioengineering & Sensing Technology, University of Science and Technology Beijing, Beijing 100083, China.
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27
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Evtugyn GA, Kostyleva VB, Porfireva AV, Savelieva MA, Evtugyn VG, Sitdikov RR, Stoikov II, Antipin IS, Hianik T. Label-free aptasensor for thrombin determination based on the nanostructured phenazine mediator. Talanta 2012. [PMID: 23182588 DOI: 10.1016/j.talanta.2012.07.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
New aptasensors based on DNA aptamer and polycarboxylated thiacalix[4]arenes in cone, 1,3-alternate and partial cone configurations bearing Neutral Red (NR) at substituents at the lower rim have been developed and applied for thrombin detection. The assembly of the biorecognition layer was optimized by AFM and EIS study to reach the maximal coverage and regular composition of the surface layer. The interaction of the NR groups with thrombin suppressed the electron hopping between oxidized and reduced mediator groups. This regularly decreased the NR peak current and increased the resistance of the charge transfer. The aptasensor makes it possible to detect from 1 nM to 1 μM of thrombin with the detection limit of 0.05-0.5 nM. No effect of the 1000 excess of bovine serum albumin on the signal was observed. The influence of thiacalix[4]arene configuration on the sensitivity of aptasensor signal toward thrombin is discussed.
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Affiliation(s)
- Gennady A Evtugyn
- Analytical Chemistry Department of Kazan Federal University, 18 Kremlevskaya Street, Kazan 420008, Russian Federation.
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28
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Xu LP, Wang S, Dong H, Liu G, Wen Y, Wang S, Zhang X. Fractal gold modified electrode for ultrasensitive thrombin detection. NANOSCALE 2012; 4:3786-3790. [PMID: 22622685 DOI: 10.1039/c2nr30826f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report a label-free and ultrasensitive aptasensor based on a fractal gold modified (FracAu) electrode for thrombin detection with a femtomolar detection limit. The FracAu electrode was prepared by electrodeposition of hydrogen tetrachloroaurate (HAuCl(4)) onto a bare indium tin oxide (ITO) electrode surface. After this process the electrode was characterized by SEM. A thiol-modified aptamer against thrombin was immobilized on the FracAu electrode through a self-assembling process. Upon thrombin binding, the interfacial electron transfer of the FracAu electrode was perturbed by the formation of an aptamer-thrombin complex. The concentration of thrombin in the sample solution was determined by measuring the change in the oxidation peak current of hydroxymethyl ferrocene (C(11)H(12)FeO) with differential pulse voltammetry (DPV). The current response (reduced peak current) had a linear relationship with the logarithm of thrombin concentrations in the range of 10(-15) to 10(-10) M with a detection limit of 5.7 fM. Furthermore, the as-prepared FracAu electrode exhibited high selectivity. The application of FracAu electrodes may be extended to prepare other types of biosensors, such as immunosensors, enzyme biosensors and DNA biosensors. These results show that FracAu electrodes have great promise for clinical diagnosis of disease-related biomarkers.
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Affiliation(s)
- Li-Ping Xu
- Research Center for Bioengineering and Sensing Technology, University of Science & Technology Beijing, Beijing 100083, China.
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29
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Park BJ, Sa YS, Kim YH, Kim YH. Spectroscopic and Electrochemical Detection of Thrombin/5'-SH or 3'-SH Aptamer Immobilized on (porous) Gold Substrates. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.1.100] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Tang J, Tang D, Niessner R, Knopp D, Chen G. Hierarchical dendritic gold microstructure-based aptasensor for ultrasensitive electrochemical detection of thrombin using functionalized mesoporous silica nanospheres as signal tags. Anal Chim Acta 2012; 720:1-8. [PMID: 22365113 DOI: 10.1016/j.aca.2011.12.070] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 12/30/2011] [Accepted: 12/30/2011] [Indexed: 12/16/2022]
Abstract
A sensitive electrochemical approach for the detection of thrombin was designed by using densely packed hierarchical dendritic gold microstructures (HDGMs) with secondary and tertiary branches as matrices, and thionine-functionalized mesoporous silica nanospheres as signal tags. To prepare the signal tags, the positively charged thionine (as an indicator) was initially adsorbed onto the mesoporous silica nanoparticles (MSNs). Then [AuCl(4)](-) ions were in situ reduced on the thionine-modified MSNs by ascorbic acid to construct nanogold-decorated MSNs (GMSNs). The formed GMSNs were employed as label of the aminated aptamers. The assay was carried out in PBS, pH 7.4 with a sandwich-type assay mode by using the assembled thionine in the GMSNs as indicators. Compared with the pure silica nanoparticles, mesoporous silica could provide a larger surface for the immobilization of biomolecules and improve the sensitivity of the aptasensor. Under optimal conditions, the electrochemical aptasensors exhibited a wide linear range from 0.001 to 600 ng mL(-1) (i.e. 0.03 pM to 0.018 μM thrombin) with a low detection limit (LOD) of 0.5 pg mL(-1) (≈15 fM) thrombin at 3σ. No obvious non-specific adsorption was observed during a series of analyses to detect target analyte. The precision, selectivity and stability of the aptasensors were acceptable. Importantly, the methodology was evaluated with thrombin spiked samples in blank fetal calf serum, and the recoveries were 94.2-112%, indicating an exciting potential for thrombin detection.
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Affiliation(s)
- Juan Tang
- Key Laboratory of Analysis and Detection for Food Safety (Ministry of Education & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, PR China
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31
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Gan X, Yuan R, Chai Y, Yuan Y, Mao L, Cao Y, Liao Y. 4-(dimethylamino)butyric acid@PtNPs as enhancer for solid-state electrochemiluminescence aptasensor based on target-induced strand displacement. Biosens Bioelectron 2011; 34:25-9. [PMID: 22387036 DOI: 10.1016/j.bios.2011.11.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 11/09/2011] [Accepted: 11/09/2011] [Indexed: 11/25/2022]
Abstract
A solid-state electrochemiluminescence (ECL) aptasensor based on target-induced aptamer displacement for highly sensitive detection of thrombin was developed successfully using 4-(dimethylamino)butyric acid (DMBA)@PtNPs labeling as enhancer. Such a special aptasensor included three main parts: ECL substrate, ECL intensity amplification and target-induced aptamer displacement. The ECL substrate was made by modifying the complex of Pt nanoparticles (PtNPs) and tris(2,2-bipyridyl) ruthenium (II) (Ru(bpy)(3)(2+)) (Ru-PtNPs) onto nafion@multi-walled carbon nanotubes (nafion@MWCNTs) modified electrode surface. A complementary thrombin aptamer labeled by DMBA@PtNPs (Aptamer II) acted as the ECL intensity amplification. The thrombin aptamer (TBA) was applied to hybridize with the labeled complementary thrombin aptamer, yielding a duplex complex of TBA-Aptamer II on the electrode surface. The introduction of thrombin triggered the displacement of Aptamer II from the self-assembled duplex into the solution and the association of inert protein thrombin on the electrode surface, decreasing the amount of DMBA@PtNPs and increasing the electron transfer resistance of the aptasensor and thus resulting large decrease in ECL signal. With the synergistic amplification of DMBA and PtNPs to Ru(bpy)(3)(2+) ECL, the aptasensor showed an enlarged ECL intensity change before and after the detection of thrombin. As a result, the change of ECL intensity has a direct relationship with the logarithm of thrombin concentration in the range of 0.001-30 nM. The detection limit of the proposed aptasensor is 0.4 pM. Thus, the approach is expected to open new opportunities for protein diagnostics in clinical as well as bioanalysis in general.
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Affiliation(s)
- Xianxue Gan
- Key Laboratory on Luminescence and Real-Time Analysis, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing, PR China
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32
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Evtugyn G, Kostyleva V, Sitdikov R, Porfireva A, Savelieva M, Stoikov I, Antipin I, Hianik T. Electrochemical Aptasensor Based on a Macrocyclic Ligand Bearing Neutral Red. ELECTROANAL 2011. [DOI: 10.1002/elan.201100435] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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33
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Liu J, Yang X, He X, Wang K, Wang Q, Guo Q, Shi H, Huang J, Huo X. Fluorescent nanoparticles for chemical and biological sensing. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4350-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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34
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Actis P, Rogers A, Nivala J, Vilozny B, Seger RA, Jejelowo O, Pourmand N. Reversible thrombin detection by aptamer functionalized STING sensors. Biosens Bioelectron 2011; 26:4503-7. [PMID: 21636261 DOI: 10.1016/j.bios.2011.05.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 04/29/2011] [Accepted: 05/04/2011] [Indexed: 11/27/2022]
Abstract
Signal Transduction by Ion NanoGating (STING) is a label-free technology based on functionalized quartz nanopipettes. The nanopipette pore can be decorated with a variety of recognition elements and the molecular interaction is transduced via a simple electrochemical system. A STING sensor can be easily and reproducibly fabricated and tailored at the bench starting from inexpensive quartz capillaries. The analytical application of this new biosensing platform, however, was limited due to the difficult correlation between the measured ionic current and the analyte concentration in solution. Here we show that STING sensors functionalized with aptamers allow the quantitative detection of thrombin. The binding of thrombin generates a signal that can be directly correlated to its concentration in the bulk solution.
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Affiliation(s)
- Paolo Actis
- Department of Biomolecular Engineering, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA
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