1
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Xia N, Gao F, Zhang J, Wang J, Huang Y. Overview on the Development of Electrochemical Immunosensors by the Signal Amplification of Enzyme- or Nanozyme-Based Catalysis Plus Redox Cycling. Molecules 2024; 29:2796. [PMID: 38930860 PMCID: PMC11206384 DOI: 10.3390/molecules29122796] [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: 04/21/2024] [Revised: 05/31/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Enzyme-linked electrochemical immunosensors have attracted considerable attention for the sensitive and selective detection of various targets in clinical diagnosis, food quality control, and environmental analysis. In order to improve the performances of conventional immunoassays, significant efforts have been made to couple enzyme-linked or nanozyme-based catalysis and redox cycling for signal amplification. The current review summarizes the recent advances in the development of enzyme- or nanozyme-based electrochemical immunosensors with redox cycling for signal amplification. The special features of redox cycling reactions and their synergistic functions in signal amplification are discussed. Additionally, the current challenges and future directions of enzyme- or nanozyme-based electrochemical immunosensors with redox cycling are addressed.
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Affiliation(s)
- Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Fengli Gao
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Jiwen Zhang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Jiaqiang Wang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yaliang Huang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China
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2
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Feng Y, Gao F, Yi X, La M. Optical Bioassays Based on the Signal Amplification of Redox Cycling. BIOSENSORS 2024; 14:269. [PMID: 38920573 PMCID: PMC11201508 DOI: 10.3390/bios14060269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 06/27/2024]
Abstract
Optical bioassays are challenged by the growing requirements of sensitivity and simplicity. Recent developments in the combination of redox cycling with different optical methods for signal amplification have proven to have tremendous potential for improving analytical performances. In this review, we summarized the advances in optical bioassays based on the signal amplification of redox cycling, including colorimetry, fluorescence, surface-enhanced Raman scattering, chemiluminescence, and electrochemiluminescence. Furthermore, this review highlighted the general principles to effectively couple redox cycling with optical bioassays, and particular attention was focused on current challenges and future opportunities.
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Affiliation(s)
- Yunxiao Feng
- School of Chemistry and Environmental Engineering, Pingdingshan University, Pingdingshan 467000, China;
| | - Fengli Gao
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Xinyao Yi
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Ming La
- School of Chemistry and Environmental Engineering, Pingdingshan University, Pingdingshan 467000, China;
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3
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Robinson C, Juska VB, O'Riordan A. Surface chemistry applications and development of immunosensors using electrochemical impedance spectroscopy: A comprehensive review. ENVIRONMENTAL RESEARCH 2023; 237:116877. [PMID: 37579966 DOI: 10.1016/j.envres.2023.116877] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/04/2023] [Accepted: 08/10/2023] [Indexed: 08/16/2023]
Abstract
Immunosensors are promising alternatives as detection platforms for the current gold standards methods. Electrochemical immunosensors have already proven their capability for the sensitive, selective, detection of target biomarkers specific to COVID-19, varying cancers or Alzheimer's disease, etc. Among the electrochemical techniques, electrochemical impedance spectroscopy (EIS) is a highly sensitive technique which examines the impedance of an electrochemical cell over a range of frequencies. There are several important critical requirements for the construction of successful impedimetric immunosensor. The applied surface chemistry and immobilisation protocol have impact on the electroanalytical performance of the developed immunosensors. In this Review, we summarise the building blocks of immunosensors based on EIS, including self-assembly monolayers, nanomaterials, polymers, immobilisation protocols and antibody orientation.
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Affiliation(s)
- Caoimhe Robinson
- Tyndall National Institute, University College Cork, T12 R5CP, Cork, Ireland
| | - Vuslat B Juska
- Tyndall National Institute, University College Cork, T12 R5CP, Cork, Ireland.
| | - Alan O'Riordan
- Tyndall National Institute, University College Cork, T12 R5CP, Cork, Ireland.
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4
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Chen C, La M, Yi X, Huang M, Xia N, Zhou Y. Progress in Electrochemical Immunosensors with Alkaline Phosphatase as the Signal Label. BIOSENSORS 2023; 13:855. [PMID: 37754089 PMCID: PMC10526794 DOI: 10.3390/bios13090855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023]
Abstract
Electrochemical immunosensors have shown great potential in clinical diagnosis, food safety, environmental protection, and other fields. The feasible and innovative combination of enzyme catalysis and other signal-amplified elements has yielded exciting progress in the development of electrochemical immunosensors. Alkaline phosphatase (ALP) is one of the most popularly used enzyme reporters in bioassays. It has been widely utilized to design electrochemical immunosensors owing to its significant advantages (e.g., high catalytic activity, high turnover number, and excellent substrate specificity). In this work, we summarized the achievements of electrochemical immunosensors with ALP as the signal reporter. We mainly focused on detection principles and signal amplification strategies and briefly discussed the challenges regarding how to further improve the performance of ALP-based immunoassays.
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Affiliation(s)
- Changdong Chen
- College of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan 476000, China
| | - Ming La
- College of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan 476000, China
| | - Xinyao Yi
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Mengjie Huang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yanbiao Zhou
- College of Chemical and Environmental Engineering, Pingdingshan University, Pingdingshan 476000, China
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5
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Nandhakumar P, Bhatia A, Lee NS, Yoon YH, Yang H. Rapid nanocatalytic reaction using antibody-conjugated gold nanoparticles for simple and sensitive detection of parathyroid hormone. Int J Biol Macromol 2023; 241:124574. [PMID: 37100334 DOI: 10.1016/j.ijbiomac.2023.124574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023]
Abstract
Biomolecule-conjugated metal nanoparticles (NPs) have been primarily used as colorimetric labels in affinity-based bioassays for point-of-care testing. A facile electrochemical detection scheme using a rapid nanocatalytic reaction of a metal NP label is required to achieve more quantitative and sensitive point-of-care testing. Moreover, all the involved components should be stable in their dried form and solution. This study developed a stable component set that allows for rapid and simple nanocatalytic reactions combined with electrochemical detection and applied it for the sensitive detection of parathyroid hormone (PTH). The component set consists of an indium-tin oxide (ITO) electrode, ferrocenemethanol (FcMeOH), antibody-conjugated Au NPs, and ammonia borane (AB). Despite being a strong reducing agent, AB is selected because it is stable in its dried form and solution. The slow direct reaction between FcMeOH+ and AB provides a low electrochemical background, and the rapid nanocatalytic reaction allows for a high electrochemical signal. Under optimal conditions, PTH could be quantified in a wide range of concentrations in artificial serum, with a detection limit of ~0.5 pg/mL. Clinical validation of the developed PTH immunosensor using real serum samples indicates that this novel electrochemical detection scheme is promising for quantitative and sensitive immunoassays for point-of-care testing.
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Affiliation(s)
- Ponnusamy Nandhakumar
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Aman Bhatia
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Nam-Sihk Lee
- EONE Laboratories, Incheon 22014, Republic of Korea
| | | | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea.
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6
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Xia N, Liu G, Zhang S, Shang Z, Yang Y, Li Y, Liu L. Oxidase-mimicking peptide-copper complexes and their applications in sandwich affinity biosensors. Anal Chim Acta 2022; 1214:339965. [DOI: 10.1016/j.aca.2022.339965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/15/2022] [Accepted: 05/18/2022] [Indexed: 01/08/2023]
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7
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Hassan D, Bakhsh H, Khurram AM, Bhutto SA, Jalbani NS, Ghumro T, Solangi AR. Fluorescent Nanotechnology: An Evolution in Optical Sensors. CURR ANAL CHEM 2022. [DOI: 10.2174/1573411017666201215121420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The optical properties of nanomaterials have evolved enormously with the introduction of nanotechnology. The property of materials to absorb and/or emit specific wavelength has turned them into one of the most favourite candidates to be effectively utilized in different sensing applications e.g organic light emission diodes (OLEDs) sensors, gas sensors, biosensors and fluorescent sensors. These materials have been reported as a sensor in the field of tissue and cell imaging, cancer detection and detection of environmental contaminants etc. Fluorescent nanomaterials are heling in rapid and timely detection of various contaminants that greatly impact the quality of life and food, that is exposed to these contaminants. Later, all the contaminants have been investigated to be most perilous entities that momentously affect the life span of the animals and humans who use those foods which have been contaminated.
Objective:
In this review, we will discuss about various methods and approaches to synthesize the fluorescent nanoparticles and quantum dots (QDs) and their applications in various fields. The application will include the detection of various environmental contaminants and bio-medical applications. We will discuss the possible mode of action of the nanoparticles when used as sensor for the environmental contaminants as well as the surface modification of some fluorescent nanomaterials with anti-body and enzyme for specific detection in animal kingdom. We will also describe some RAMAN based sensors as well as some optical sensing-based nanosensors.
Conclusion:
Nanotechnology has enabled to play with the size, shape and morphology of materials in the nanoscale. The physical, chemical and optical properties of materials change dramatically when they are reduced to nanoscale. The optical properties can become choosy in terms of emission or absorption of wavelength in the size range and can result in production of very sensitive optical sensor. The results show that the use of fluorescent nanomaterials for the sensing purposes are helping a great deal in the sensing field.
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Affiliation(s)
- Dilawar Hassan
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro - Pakistan
| | - Hadi Bakhsh
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro - Pakistan
| | - Asif M. Khurram
- Department
of Chemistry, Govt. College of Science, Lahore - Pakistan
| | - Shakeel A. Bhutto
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro - Pakistan
| | - Nida S. Jalbani
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro - Pakistan
| | - Tania Ghumro
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro - Pakistan
| | - Amber R. Solangi
- National Centre of Excellence in Analytical Chemistry, University of Sindh, 76080, Jamshoro - Pakistan
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8
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Karbelkar A, Reynolds EE, Ahlmark R, Furst AL. A Microbial Electrochemical Technology to Detect and Degrade Organophosphate Pesticides. ACS CENTRAL SCIENCE 2021; 7:1718-1727. [PMID: 34729415 PMCID: PMC8554842 DOI: 10.1021/acscentsci.1c00931] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Organophosphate (OP) pesticides cause hundreds of illnesses and deaths annually. Unfortunately, exposures are often detected by monitoring degradation products in blood and urine, with few effective methods for detection and remediation at the point of dispersal. We have developed an innovative strategy to remediate these compounds: an engineered microbial technology for the targeted detection and destruction of OP pesticides. This system is based upon microbial electrochemistry using two engineered strains. The strains are combined such that the first microbe (E. coli) degrades the pesticide, while the second (S. oneidensis) generates current in response to the degradation product without requiring external electrochemical stimulus or labels. This cellular technology is unique in that the E. coli serves only as an inert scaffold for enzymes to degrade OPs, circumventing a fundamental requirement of coculture design: maintaining the viability of two microbial strains simultaneously. With this platform, we can detect OP degradation products at submicromolar levels, outperforming reported colorimetric and fluorescence sensors. Importantly, this approach affords a modular, adaptable strategy that can be expanded to additional environmental contaminants.
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Affiliation(s)
- Amruta
A. Karbelkar
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Erin E. Reynolds
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Rachel Ahlmark
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
| | - Ariel L. Furst
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, Massachusetts 02139, United States
- Center
for Environmental Health Sciences, Massachusetts
Institute of Technology, Cambridge, Massachusetts 02139, United States
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9
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Kim J, Kim J. Electrochemically induced deposition of hydroxyl‐terminated poly(amidoamine) dendrimers encapsulating Pt nanoparticles on indium tin oxide for enhanced electrochemiluminescence. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jiwoo Kim
- Department of Chemistry, Research Institute for Basic Sciences Kyung Hee University Seoul South Korea
| | - Joohoon Kim
- Department of Chemistry, Research Institute for Basic Sciences Kyung Hee University Seoul South Korea
- KHU‐KIST Department of Converging Science and Technology Kyung Hee University Seoul South Korea
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10
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Ma X, Deng D, Xia N, Hao Y, Liu L. Electrochemical Immunosensors with PQQ-Decorated Carbon Nanotubes as Signal Labels for Electrocatalytic Oxidation of Tris(2-carboxyethyl)phosphine. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1757. [PMID: 34361143 PMCID: PMC8308108 DOI: 10.3390/nano11071757] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
Nanocatalysts are a promising alternative to natural enzymes as the signal labels of electrochemical biosensors. However, the surface modification of nanocatalysts and sensor electrodes with recognition elements and blockers may form a barrier to direct electron transfer, thus limiting the application of nanocatalysts in electrochemical immunoassays. Electron mediators can accelerate the electron transfer between nanocatalysts and electrodes. Nevertheless, it is hard to simultaneously achieve fast electron exchange between nanocatalysts and redox mediators as well as substrates. This work presents a scheme for the design of electrochemical immunosensors with nanocatalysts as signal labels, in which pyrroloquinoline quinone (PQQ) is the redox-active center of the nanocatalyst. PQQ was decorated on the surface of carbon nanotubes to catalyze the electrochemical oxidation of tris(2-carboxyethyl)phosphine (TCEP) with ferrocenylmethanol (FcM) as the electron mediator. With prostate-specific antigen (PSA) as the model analyte, the detection limit of the sandwich-type immunosensor was found to be 5 pg/mL. The keys to success for this scheme are the slow chemical reaction between TCEP and ferricinum ions, and the high turnover frequency between ferricinum ions, PQQ. and TCEP. This work should be valuable for designing of novel nanolabels and nanocatalytic schemes for electrochemical biosensors.
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Affiliation(s)
- Xiaohua Ma
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Shangqiu Normal University, Shangqiu 476000, China;
| | - Dehua Deng
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China; (D.D.); (N.X.)
| | - Ning Xia
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China; (D.D.); (N.X.)
| | - Yuanqiang Hao
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Shangqiu Normal University, Shangqiu 476000, China;
| | - Lin Liu
- Henan Key Laboratory of Biomolecular Recognition and Sensing, Shangqiu Normal University, Shangqiu 476000, China;
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China; (D.D.); (N.X.)
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11
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Hu Q, Gan S, Bao Y, Zhang Y, Han D, Niu L. Electrochemically Controlled ATRP for Cleavage-Based Electrochemical Detection of the Prostate-Specific Antigen at Femtomolar Level Concentrations. Anal Chem 2020; 92:15982-15988. [PMID: 33225684 DOI: 10.1021/acs.analchem.0c03467] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
As a single-chain glycoprotein with endopeptidase activity, the prostate-specific antigen (PSA) is valuable as an informative serum marker in diagnosing, staging, and prognosis of prostate cancer. In this report, an electrochemical biosensor based on the target-induced cleavage of a specific peptide substrate (PSA peptide) is designed for the highly selective detection of PSA at the femtomolar level, using electrochemically controlled atom transfer radical polymerization (eATRP) as a method for signal amplification. The PSA peptides, without free carboxyl sites, are attached to the gold surface via the N-terminal cysteine residue. The target-induced cleavage of PSA peptides results in the generation of carboxyl sites, to which the alkyl halide initiator α-bromophenylacetic acid (BPAA) is linked via the Zr(IV) linkers. Subsequently, the potentiostatic eATRP of ferrocenylmethyl methacrylate (FcMMA, as the monomer) leads to the surface-initiated grafting of high-density ferrocenyl polymers. As a result, a large amount of Fc redox tags can be recruited for signal amplification, through which the limit of detection (LOD) for PSA can be down to 3.2 fM. As the recognition element, the PSA peptide is easy to synthesize, chemically and thermally stable, and low-cost. Without the necessity of enzyme or nanoparticle labels, the eATRP-based amplification method is easy to operate and low-cost. Results also show that the cleavage-based electrochemical PSA biosensor is highly selective and applicable to PSA detection in complex biological samples. In view of these merits, the integration of the eATRP-based amplification method into cleavage-based recognition is believed to hold great promise for the electrochemical detection of PSA in clinical applications.
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Affiliation(s)
- Qiong Hu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Shiyu Gan
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yu Bao
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yuwei Zhang
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Dongxue Han
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Li Niu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
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12
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Kim J, Park J, Park S, Seo J, Kwon J, Lee H, Kim S, Yang H. Surface‐Plasmonic‐Field‐Induced Photoredox Catalysis and Mediated Electron Transfer for Washing‐Free DNA Detection. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jihyeon Kim
- Department of Chemistry Pusan National University Busan 46241 Korea
| | - Jongkyoon Park
- Department of Cogno-Mechatronics Engineering Pusan National University Busan 46241 Korea
| | - Seonhwa Park
- Department of Chemistry Pusan National University Busan 46241 Korea
| | - Jeongwook Seo
- Department of Chemistry Pusan National University Busan 46241 Korea
| | - Jeongwook Kwon
- Department of Chemistry Pusan National University Busan 46241 Korea
| | - Hyunsoo Lee
- Department of Cogno-Mechatronics Engineering Pusan National University Busan 46241 Korea
| | - Seungchul Kim
- Department of Cogno-Mechatronics Engineering Pusan National University Busan 46241 Korea
- Department of Optics and Mechatronics Engineering Pusan National University Busan 46241 Korea
| | - Haesik Yang
- Department of Chemistry Pusan National University Busan 46241 Korea
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13
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Kim J, Park J, Park S, Seo J, Kwon J, Lee H, Kim S, Yang H. Surface-Plasmonic-Field-Induced Photoredox Catalysis and Mediated Electron Transfer for Washing-Free DNA Detection. Angew Chem Int Ed Engl 2020; 59:19202-19208. [PMID: 32618117 DOI: 10.1002/anie.202007318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Indexed: 11/08/2022]
Abstract
Distance-dependent electromagnetic radiation and electron transfer have been commonly employed in washing-free fluorescence and electrochemical bioassays, respectively. In this study, we combined the two distance-dependent phenomena for sensitive washing-free DNA detection. A distance-dependent surface plasmonic field induces rapid photoredox catalysis of surface-bound catalytic labels, and distance-dependent mediated electron transfer allows for rapid electron transfer from the surface-bound labels to the electrode. An optimal system consists of a chemically reversible acceptor (Ru(NH3 )6 3+ ), a chemically reversible photoredox catalyst (eosin Y), and a chemically irreversible donor (triethanolamine). Side reactions with O2 do not significantly decrease the efficiency of photoredox catalysis. Energy transfer quenching between the electrode and the label can be lowered by increasing the distance between them. Washing-free DNA detection had a detection limit of approximately 0.3 nm in buffer and 0.4 nm in serum without a washing step.
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Affiliation(s)
- Jihyeon Kim
- Department of Chemistry, Pusan National University, Busan, 46241, Korea
| | - Jongkyoon Park
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Korea
| | - Seonhwa Park
- Department of Chemistry, Pusan National University, Busan, 46241, Korea
| | - Jeongwook Seo
- Department of Chemistry, Pusan National University, Busan, 46241, Korea
| | - Jeongwook Kwon
- Department of Chemistry, Pusan National University, Busan, 46241, Korea
| | - Hyunsoo Lee
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Korea
| | - Seungchul Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Korea.,Department of Optics and Mechatronics Engineering, Pusan National University, Busan, 46241, Korea
| | - Haesik Yang
- Department of Chemistry, Pusan National University, Busan, 46241, Korea
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14
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Amirmahani N, Rashidi M, Mahmoodi NO. Synthetic application of gold complexes on magnetic supports. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5626] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Najmeh Amirmahani
- Department of ChemistryFaculty of Science, University of Guilan, University Campus 2 Rasht Iran
- Environmental Health Engineering Research CenterKerman University of Medical Sciences Kerman Iran
| | - Mohsen Rashidi
- Department of Chemistry, Faculty of ScienceShahid Bahonar University of Kerman Kerman Iran
| | - Nosrat O. Mahmoodi
- Department of ChemistryFaculty of Science, University of Guilan, University Campus 2 Rasht Iran
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15
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Zhang K, Hujaya SD, Järvinen T, Li P, Kauhanen T, Tejesvi MV, Kordas K, Liimatainen H. Interfacial Nanoparticle Complexation of Oppositely Charged Nanocelluloses into Functional Filaments with Conductive, Drug Release, or Antimicrobial Property. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1765-1774. [PMID: 31820632 DOI: 10.1021/acsami.9b15555] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Construction of colloidal nanoparticles (NPs) into advanced functional nanocomposites and hybrids with the predesigned hierarchical structure and high-performance is attractive, especially for natural biological nanomaterials, such as proteins and polysaccharides. Herein, a simple and sustainable approach called interfacial NP complexation (INC) was applied to construct diverse functional (conductive, drug-loaded, or antimicrobial) nanocomposite filaments from oppositely charged colloidal nanocelluloses. By incorporating different additives during the INC process, including multiwalled carbon nanotube, an antitumor drug (doxorubicin hydrochloride), and metal (silver) NPs (Ag NPs), high-performance functional continuous filaments were synthesized, and their potential applications in electronics, drug delivery, and antimicrobial materials were investigated, respectively. This novel INC method based on charged colloidal NPs opens new avenues for building various functional filaments for a diversity of end uses.
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Affiliation(s)
- Kaitao Zhang
- Fibre and Particle Engineering Research Unit, Faculty of Technology , University of Oulu , P.O. Box 4300, FI-90014 Oulu , Finland
| | - Sry D Hujaya
- Fibre and Particle Engineering Research Unit, Faculty of Technology , University of Oulu , P.O. Box 4300, FI-90014 Oulu , Finland
| | - Topias Järvinen
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering , University of Oulu , 90014 Oulu , Finland
| | - Panpan Li
- Fibre and Particle Engineering Research Unit, Faculty of Technology , University of Oulu , P.O. Box 4300, FI-90014 Oulu , Finland
| | - Topias Kauhanen
- Department of Ecology and Genetics , University of Oulu , P.O. Box 3000, 90014 Oulu , Finland
| | - Mysore V Tejesvi
- Department of Ecology and Genetics , University of Oulu , P.O. Box 3000, 90014 Oulu , Finland
- Chain Antimicrobials Limited , Teknologiantie 2 , FI-90590 Oulu , Finland
| | - Krisztian Kordas
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering , University of Oulu , 90014 Oulu , Finland
| | - Henrikki Liimatainen
- Fibre and Particle Engineering Research Unit, Faculty of Technology , University of Oulu , P.O. Box 4300, FI-90014 Oulu , Finland
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16
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Ultrasensitive amperometric immunosensor for the prostate specific antigen by exploiting a Fenton reaction induced by a metal-organic framework nanocomposite of type Au/Fe-MOF with peroxidase mimicking activity. Mikrochim Acta 2020; 187:95. [DOI: 10.1007/s00604-019-4075-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/06/2019] [Indexed: 01/30/2023]
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17
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Hu Q, Gan S, Bao Y, Zhang Y, Han D, Niu L. Controlled/“living” radical polymerization-based signal amplification strategies for biosensing. J Mater Chem B 2020; 8:3327-3340. [DOI: 10.1039/c9tb02419k] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Controlled/“living” radical polymerization-based signal amplification strategies and their applications in highly sensitive biosensing of clinically relevant biomolecules are reviewed.
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Affiliation(s)
- Qiong Hu
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Shiyu Gan
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Yu Bao
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Yuwei Zhang
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Dongxue Han
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Li Niu
- Center for Advanced Analytical Science
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- P. R. China
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18
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Alumina contamination through polishing and its effect on hydrogen evolution on gold electrodes. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.134915] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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20
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Das J, Kelley SO. High-Performance Nucleic Acid Sensors for Liquid Biopsy Applications. Angew Chem Int Ed Engl 2019; 59:2554-2564. [PMID: 31332937 DOI: 10.1002/anie.201905005] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 07/21/2019] [Indexed: 12/18/2022]
Abstract
Circulating tumour nucleic acids (ctNAs) are released from tumours cells and can be detected in blood samples, providing a way to track tumors without requiring a tissue sample. This "liquid biopsy" approach has the potential to replace invasive, painful, and costly tissue biopsies in cancer diagnosis and management. However, a very sensitive and specific approach is required to detect relatively low amounts of mutant sequences linked to cancer because they are masked by the high levels of wild-type sequences. This review discusses high-performance nucleic acid biosensors for ctNA analysis in patient samples. We compare sequencing- and amplification-based methods to next-generation sensors for ctDNA and ctRNA (including microRNA) profiling, such as electrochemical methods, surface plasmon resonance, Raman spectroscopy, and microfluidics and dielectrophoresis-based assays. We present an overview of the analytical sensitivity and accuracy of these methods as well as the biological and technical challenges they present.
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Affiliation(s)
- Jagotamoy Das
- Department of Pharmaceutical Sciences, Department of Chemistry, University of Toronto, Toronto, ON, M5S 3M2, Canada
| | - Shana O Kelley
- Department of Pharmaceutical Sciences, Department of Chemistry, University of Toronto, Toronto, ON, M5S 3M2, Canada
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21
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A rapid ultrasound-promoted Horner–Wadsworth–Emmons reaction for the preparation of ferrocene derivatives. Application to ferrocene-modified ITO electrodes. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2014.11.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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22
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Ti3C2 MXene nanosheet-based capacitance immunoassay with tyramine-enzyme repeats to detect prostate-specific antigen on interdigitated micro-comb electrode. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.07.010] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Park S, Kim J, Kim S, Kim G, Lee NS, Yoon YH, Yang H. Combined Signal Amplification Using a Propagating Cascade Reaction and a Redox Cycling Reaction for Sensitive Thyroid-Stimulating Hormone Detection. Anal Chem 2019; 91:7894-7901. [PMID: 31184125 DOI: 10.1021/acs.analchem.9b01740] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Propagating cascade reactions based on two proteases are promising for obtaining high signal amplification. However, in many cases, biosensors that use cascade reactions do not have low detection limits because of the inherent slowness of proteolytic reactions. Here, we report a sensitive electrochemical immunosensor using a high-signal-amplification method that combines a propagating cascade reaction and a redox cycling reaction. The cascade reaction uses ecarin and prothrombin: the ecarin label proteolytically converts inactive prothrombin into active thrombin, which then proteolytically liberates electroactive p-aminophenol (AP) from an AP-conjugated peptide. The liberated AP is electrochemically oxidized to p-benzoquinone imine (QI), regenerated by the reduction of QI by NADH, and then electrochemically reoxidized. This electrochemical-chemical (EC) redox cycling reaction significantly increases the electrochemical signal. The developed immunosensor is also compared with an immunosensor that uses only a propagating cascade reaction and an immunosensor that uses a single proteolytic reaction and an EC redox cycling reaction. The detection limits for thyroid-stimulating hormone (TSH) obtained using the three immunosensors are 3 pg/mL, 2 ng/mL, and 4 ng/mL, respectively, indicating that the newly developed immunosensor is more sensitive than the other two. The measured concentrations of TSH in clinical serum are found to agree well with those determined using a commercial instrument.
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Affiliation(s)
- Seonhwa Park
- Department of Chemistry and Chemistry Institute for Functional Materials , Pusan National University , Busan 46241 , Korea
| | - Jihyeon Kim
- Department of Chemistry and Chemistry Institute for Functional Materials , Pusan National University , Busan 46241 , Korea
| | - Seheon Kim
- Department of Chemistry and Chemistry Institute for Functional Materials , Pusan National University , Busan 46241 , Korea
| | - Gyeongho Kim
- Department of Chemistry and Chemistry Institute for Functional Materials , Pusan National University , Busan 46241 , Korea
| | | | | | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials , Pusan National University , Busan 46241 , Korea
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24
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Ultra-sensitive electrochemical detection of bacteremia enabled by redox-active gold nanoparticles (raGNPs) in a nano-sieving microfluidic system (NS-MFS). Biosens Bioelectron 2019; 133:215-222. [PMID: 30951981 DOI: 10.1016/j.bios.2019.03.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 11/20/2022]
Abstract
Early diagnosis of bacterial infections is crucial to improving survival rates by enabling treatment with appropriate antibiotics within the first few hours of infection. This paper presents a highly sensitive amperometric biosensor for the detection of several pathogenic bacterial cells in blood plasma around 30 min. The proposed device is based on an electropolymerized self-assembled layer on gold nanoparticles operated in a portable nano-sieving microfluidic system (NS-MFS). The redox-active gold nanoparticles (raGNPs) enhanced the electrical conductivity and provided a greater number of electrochemically active molecules for sensing, while improving resistance to the fouling of sensors by oxidation products in blood plasma. The detection limit of the device has been shown to reach 10 CFU/mL for Pseudomonas aeruginosa and Staphylococcus aureus spiked in plasma. The dynamic range of the sensing system falls between 10 and 105 CFU/mL in a buffer solution by cyclic voltammetry (CV) measurements. The results demonstrated that the raGNPs/NS-MFS can successful detect P. aeruginosa and S. aureus in human plasma, and is very useful for the diagnosis of bacteremia from clinical samples.
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25
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Electrochemical Biosensors as Potential Diagnostic Devices for Autoimmune Diseases. BIOSENSORS-BASEL 2019; 9:bios9010038. [PMID: 30836674 PMCID: PMC6468465 DOI: 10.3390/bios9010038] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/17/2019] [Accepted: 02/27/2019] [Indexed: 01/19/2023]
Abstract
An important class of biosensors is immunosensors, affinity biosensors that are based on the specific interaction between antibodies and antigens. They are classified in four classes based on the type of employed transducer: electrochemical, optical, microgravimetric, and thermometric and depending on the type of recognition elements, antibodies, aptamers, microRNAs and recently peptides are integrating parts. Those analytical devices are able to detect peptides, antibodies and proteins in various sample matrices, without many steps of sample pretreatment. Their high sensitivity, low cost and the easy integration in point of care devices assuring portability are attracting features that justify the increasing interest in their development. The use of nanomaterials, simultaneous multianalyte detection and integration on platforms to form point-of-care devices are promising tools that can be used in clinical analysis for early diagnosis and therapy monitoring in several pathologies. Taking into account the growing incidence of autoimmune disease and the importance of early diagnosis, electrochemical biosensors could represent a viable alternative to currently used diagnosis methods. Some relevant examples of electrochemical assays for autoimmune disease diagnosis developed in the last several years based on antigens, antibodies and peptides as receptors were gathered and will be discussed further.
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26
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Fabrication of Electrochemical Sensor Modified with Porous Graphene for Determination of Trace Calycosin. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61141-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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27
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Lee N, Lee DW, Lee SM. Gold Nanoparticle-Stabilized, Tyrosine-Rich Peptide Self-Assemblies and Their Catalytic Activities in the Reduction of 4-Nitrophenol. Biomacromolecules 2018; 19:4534-4541. [DOI: 10.1021/acs.biomac.8b01221] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Namhun Lee
- Super Ultra Low Energy and Emission Vehicle (SULEEV) Center, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
- Department of Chemical Engineering, Division of Chemical and Biological Engineering, Kangwon National University, Gangwon-Do 24341, Republic of Korea
| | - Dae-Won Lee
- Department of Chemical Engineering, Division of Chemical and Biological Engineering, Kangwon National University, Gangwon-Do 24341, Republic of Korea
| | - Sang-Myung Lee
- Department of Chemical Engineering, Division of Chemical and Biological Engineering, Kangwon National University, Gangwon-Do 24341, Republic of Korea
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28
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Rahman MM, Fabregat F, Guerrero A, Asiri AM, Bisquert J. Semiconductor α‐Fe 2O 3Hematite Fabricated Electrode for Sensitive Detection of Phenolic Pollutants. ChemistrySelect 2018. [DOI: 10.1002/slct.201802503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mohammed M. Rahman
- Center of Excellence for Advanced Materials Research & Chemistry departmentKing Abdulaziz UniversityFaculty of Science Jeddah 21589 P.O. Box 80203 Saudi Arabia
| | - Francisco Fabregat
- Institute of Advanced MaterialsUniversitat Jaume I 12006 Castelló de la Plana Spain
| | - Antonio Guerrero
- Institute of Advanced MaterialsUniversitat Jaume I 12006 Castelló de la Plana Spain
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Materials Research & Chemistry departmentKing Abdulaziz UniversityFaculty of Science Jeddah 21589 P.O. Box 80203 Saudi Arabia
| | - Juan Bisquert
- Center of Excellence for Advanced Materials Research & Chemistry departmentKing Abdulaziz UniversityFaculty of Science Jeddah 21589 P.O. Box 80203 Saudi Arabia
- Institute of Advanced MaterialsUniversitat Jaume I 12006 Castelló de la Plana Spain
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Qian J, Yuan A, Yao C, Liu J, Li B, Xi F, Dong X. Highly Efficient Photo-Reduction of p
-Nitrophenol by Protonated Graphitic Carbon Nitride Nanosheets. ChemCatChem 2018. [DOI: 10.1002/cctc.201801146] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiajia Qian
- Department of Chemistry; Zhejiang Sci-Tech University; 928 Second Avenue Xiasha Higher Education Zone Hangzhou P.R. China
| | - Aili Yuan
- Department of Chemistry; Zhejiang Sci-Tech University; 928 Second Avenue Xiasha Higher Education Zone Hangzhou P.R. China
| | - Chengkai Yao
- Department of Chemistry; Zhejiang Sci-Tech University; 928 Second Avenue Xiasha Higher Education Zone Hangzhou P.R. China
| | - Jiyang Liu
- Department of Chemistry; Zhejiang Sci-Tech University; 928 Second Avenue Xiasha Higher Education Zone Hangzhou P.R. China
| | - Benxia Li
- Department of Chemistry; Zhejiang Sci-Tech University; 928 Second Avenue Xiasha Higher Education Zone Hangzhou P.R. China
| | - Fengna Xi
- Department of Chemistry; Zhejiang Sci-Tech University; 928 Second Avenue Xiasha Higher Education Zone Hangzhou P.R. China
| | - Xiaoping Dong
- Department of Chemistry; Zhejiang Sci-Tech University; 928 Second Avenue Xiasha Higher Education Zone Hangzhou P.R. China
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30
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Zhang Y, Wang G, Yang L, Wang F, Liu A. Recent advances in gold nanostructures based biosensing and bioimaging. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.05.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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31
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Cai J, Sun B, Gou X, Gou Y, Li W, Hu F. A novel way for analysis of calycosin via polyaniline functionalized graphene quantum dots fabricated electrochemical sensor. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.03.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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32
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Das J, Ivanov I, Safaei TS, Sargent EH, Kelley SO. Combinatorial Probes for High-Throughput Electrochemical Analysis of Circulating Nucleic Acids in Clinical Samples. Angew Chem Int Ed Engl 2018; 57:3711-3716. [PMID: 29389071 DOI: 10.1002/anie.201800455] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 01/30/2018] [Indexed: 12/16/2022]
Abstract
The analysis of circulating tumour nucleic acids (ctNAs) provides a minimally invasive way to assess the mutational spectrum of a tumour. However, effective and practical methods for analyzing this emerging class of markers are lacking. Analysis of ctNAs using a sensor-based approach has notable challenges, as it is vital to differentiate nucleic acids from normal cells from mutation-bearing sequences emerging from tumours. Moreover, many genes related to cancer have dozens of different mutations. Herein, we report an electrochemical approach that directly detects genes with mutations in patient serum by using combinatorial probes (CPs). The CPs enable detection of all of the mutant alleles derived from the same part of the gene. As a proof of concept, we analyze mutations of the EGFR gene, which has more than 40 clinically relevant alterations that include deletions, insertions, and point mutations. Our CP-based approach accurately detects mutant sequences directly in patient serum.
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Affiliation(s)
- Jagotamoy Das
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, M5S 3M2, Canada
| | - Ivaylo Ivanov
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, M5S 3M2, Canada
| | - Tina S Safaei
- Department of Electrical and Computer Engineering, Faculty of Engineering Department, University of Toronto, Toronto, ON, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, Faculty of Engineering Department, University of Toronto, Toronto, ON, Canada
| | - Shana O Kelley
- Department of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, M5S 3M2, Canada
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Das J, Ivanov I, Safaei TS, Sargent EH, Kelley SO. Combinatorial Probes for High-Throughput Electrochemical Analysis of Circulating Nucleic Acids in Clinical Samples. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800455] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jagotamoy Das
- Department of Pharmaceutical Sciences; Leslie Dan Faculty of Pharmacy; University of Toronto; Toronto ON M5S 3M2 Canada
| | - Ivaylo Ivanov
- Department of Pharmaceutical Sciences; Leslie Dan Faculty of Pharmacy; University of Toronto; Toronto ON M5S 3M2 Canada
| | - Tina S. Safaei
- Department of Electrical and Computer Engineering; Faculty of Engineering Department; University of Toronto; Toronto ON Canada
| | - Edward H. Sargent
- Department of Electrical and Computer Engineering; Faculty of Engineering Department; University of Toronto; Toronto ON Canada
| | - Shana O. Kelley
- Department of Pharmaceutical Sciences; Leslie Dan Faculty of Pharmacy; University of Toronto; Toronto ON M5S 3M2 Canada
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Qin X, Sui Y, Xu A, Liu L, Li Y, Tan Y, Chen C, Xie Q. Ultrasensitive immunoassay of proteins based on in-situ enzymatic formation of quantum dots and microliter-droplet anodic stripping voltammetry. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.01.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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35
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El Kurdi R, Patra D. The role of OH - in the formation of highly selective gold nanowires at extreme pH: multi-fold enhancement in the rate of the catalytic reduction reaction by gold nanowires. Phys Chem Chem Phys 2018; 19:5077-5090. [PMID: 28134362 DOI: 10.1039/c6cp08607a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is a quest to understand the mechanism governing the morphology and geometry control of the particle growth of nanomaterials for their optical and catalytic applications. In the available literature, the role of OH- in dictating the size and shape of Au nanowires is unknown. As one of the first examples, herein, we explore how excess OH- ions in CTAB micelles play a significant role during the highly selective formation of gold nanowires having controlled diameters of ∼20-25 nm and length >1 μm, by reducing Au3+ to Au0 in a one pot, simple synthesis procedure in the presence of Ag+ ions. At pH 4-11, the same procedure does not harvest Au NWs, but Au NPs of diameter 50-70 nm, indicating that excess OH- is needed for nanowire formation. XRD, TGA, DSC, EDX, FT-IR and fluorescence spectroscopic analysis confirm that both CTAB and curcumin act as capping and stabilizing agents for Au NWs as well as Au NPs - there is no remarkable difference in the curcumin/CTAB content between Au NWs and NPs prepared in different pH environments. However, changing the CTAB micellar media to DPPC liposome media inhibits the formation of nanowires at pH ∼13; the growth of the Au NPs diminishes in DPPC liposomes, offering smaller NPs of diameter ∼25 to 30 nm, suggesting that the role of CTAB is necessary in nanowire formation. The rate of NW formation has been found to be 0.13 h-1 and the growth mechanism advocates elongation in the [110] facet of Au [110] as opposed to the [100] or [111] facets. Curcumin capped Au nanowires serve as excellent nano-catalysts for the reduction of nitro-compounds and the rate of reduction of 4-nitrophenol, a model compound, by curcumin capped Au NWs is found to be ∼10 fold higher, compared to Au NPs, which signifies that catalytic activities can be dictated by the size and shape of Au NPs.
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Affiliation(s)
- Riham El Kurdi
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
| | - Digambara Patra
- Department of Chemistry, American University of Beirut, Beirut, Lebanon.
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36
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Nandhakumar P, Kim B, Lee NS, Yoon YH, Lee K, Yang H. Nitrosoreductase-Like Nanocatalyst for Ultrasensitive and Stable Biosensing. Anal Chem 2017; 90:807-813. [DOI: 10.1021/acs.analchem.7b03364] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ponnusamy Nandhakumar
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Byeongyoon Kim
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | | | | | - Kwangyeol Lee
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | - Haesik Yang
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
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37
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Li S, Wan Y, Su Y, Fan C, Bhethanabotla VR. Gold nanoparticle-based low limit of detection Love wave biosensor for carcinoembryonic antigens. Biosens Bioelectron 2017; 95:48-54. [DOI: 10.1016/j.bios.2017.04.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 03/28/2017] [Accepted: 04/11/2017] [Indexed: 01/06/2023]
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38
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Seo J, Ha H, Park S, Haque AMJ, Kim S, Joo JM, Yang H. Immunosensor Employing Stable, Solid 1-Amino-2-naphthyl Phosphate and Ammonia-Borane toward Ultrasensitive and Simple Point-of-Care Testing. ACS Sens 2017; 2:1240-1246. [PMID: 28806067 DOI: 10.1021/acssensors.7b00407] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Biosensors for ultrasensitive point-of-care testing require dried reagents with long-term stability and a high signal-to-background ratio. Although ortho-substituted diaromatic dihydroxy and aminohydroxy compounds undergo fast redox reactions, they are not used as electrochemical signaling species because they are readily oxidized and polymerized by dissolved oxygen. In this report, stable, solid 1-amino-2-naphthyl phosphate (1A2N-P) and ammonia-borane (H3N-BH3) are respectively employed as a substrate for alkaline phosphatase (ALP) and a reductant for electrochemical-chemical (EC) redox cycling. ALP converts 1A2N-P to 1-amino-2-naphthol (1A2N), which is then employed in EC redox cycling using H3N-BH3. The oxidation and polymerization of 1A2N by dissolved oxygen is significantly prevented in the presence of H3N-BH3. The electrochemical measurement is performed without modification of indium-tin oxide (ITO) electrodes with electrocatalytic materials. For comparison, nine aromatic dihydroxy and aminohydroxy compounds, including 1A2N, are evaluated to achieve fast EC redox cycling, and four strong reductants, including H3N-BH3, are evaluated to achieve a low background level. The combination of 1A2N and H3N-BH3 allows the achievement of a very high signal-to-background ratio. When the newly developed combination is applied to the detection of creatine kinase-MB (CK-MB), the detection limit for CK-MB is ∼80 fg/mL, indicating that the combination allows ultrasensitive detection. The concentrations of CK-MB in clinical serum samples, determined using the developed system, are in good agreement with the concentrations obtained using a commercial instrument. Thus, the use of stable, solid 1A2N-P and H3N-BH3 along with bare ITO electrodes is highly promising for ultrasensitive and simple point-of-care testing.
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Affiliation(s)
- Jeongwook Seo
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Hyeri Ha
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Seonhwa Park
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Al-Monsur Jiaul Haque
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Sinyoung Kim
- Department
of Laboratory Medicine, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jung Min Joo
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Haesik Yang
- Department
of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
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Pan M, Gu Y, Yun Y, Li M, Jin X, Wang S. Nanomaterials for Electrochemical Immunosensing. SENSORS 2017; 17:s17051041. [PMID: 28475158 PMCID: PMC5469646 DOI: 10.3390/s17051041] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/10/2017] [Accepted: 05/03/2017] [Indexed: 01/02/2023]
Abstract
Electrochemical immunosensors resulting from a combination of the traditional immunoassay approach with modern biosensors and electrochemical analysis constitute a current research hotspot. They exhibit both the high selectivity characteristics of immunoassays and the high sensitivity of electrochemical analysis, along with other merits such as small volume, convenience, low cost, simple preparation, and real-time on-line detection, and have been widely used in the fields of environmental monitoring, medical clinical trials and food analysis. Notably, the rapid development of nanotechnology and the wide application of nanomaterials have provided new opportunities for the development of high-performance electrochemical immunosensors. Various nanomaterials with different properties can effectively solve issues such as the immobilization of biological recognition molecules, enrichment and concentration of trace analytes, and signal detection and amplification to further enhance the stability and sensitivity of the electrochemical immunoassay procedure. This review introduces the working principles and development of electrochemical immunosensors based on different signals, along with new achievements and progress related to electrochemical immunosensors in various fields. The importance of various types of nanomaterials for improving the performance of electrochemical immunosensor is also reviewed to provide a theoretical basis and guidance for the further development and application of nanomaterials in electrochemical immunosensors.
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Affiliation(s)
- Mingfei Pan
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technolo, Tianjin 300457, China.
| | - Ying Gu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technolo, Tianjin 300457, China.
| | - Yaguang Yun
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technolo, Tianjin 300457, China.
| | - Min Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technolo, Tianjin 300457, China.
| | - Xincui Jin
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technolo, Tianjin 300457, China.
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technolo, Tianjin 300457, China.
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41
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Direct electrochemistry and electrocatalysis of lobetyolin via magnetic functionalized reduced graphene oxide film fabricated electrochemical sensor. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 74:515-524. [DOI: 10.1016/j.msec.2016.11.139] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/22/2016] [Accepted: 11/26/2016] [Indexed: 01/02/2023]
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42
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Liu D, Luo Q, Deng F, Li Z, Li B, Shen Z. Ultrasensitive electrochemical biosensor based on the oligonucleotide self-assembled monolayer-mediated immunosensing interface. Anal Chim Acta 2017; 971:26-32. [PMID: 28456280 DOI: 10.1016/j.aca.2017.03.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 07/06/2016] [Accepted: 03/24/2017] [Indexed: 11/16/2022]
Abstract
Highly sensitive and selective quantitation of a variety of proteins over a wide concentration range is highly desirable for increased accuracy of biomarker detection or for multidisease diagnostics. In the present contribution, using human immunoglobulin G (HIgG) as the model target protein, an electrochemical ultrasensitive immunosensing platform was developed based on the oligonucleotide self-assembled monolayer-mediated (OSAM) sensing interface. For this immunosensor, the "signal-on" signaling mechanism and enzymatic signal amplification effect were integrated into one sensing architecture. Moreover, the thiolated flexible single-stranded DNAs immobilized onto gold electrode surface not only performs the wobbling motion to facilitate the electron transfer between the electrode surface and biosensing layer but also fundamentally prohibiting the direct interaction of proteins with gold substrate. Thus, the electrochemical signal could be efficiently enhanced and the unspecific adsorption or cross-reaction might be eliminated. As a result, utilizing the newly-proposed immunosensor, the HIgG can be detected down to 0.5 ng/mL, and the high detection specificity is offered. The successful design of OSAM and the highly desirable detection capability of new immunosensor are expected to provide a perspective for fabricating new robust immunosensing platform and for promising potential of oligonucleotide probe in biological research and biomedical diagnosis.
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Affiliation(s)
- Dengyou Liu
- Science College of Hunan Agricultural University, Changsha 410128, PR China
| | - Qimei Luo
- Science College of Hunan Agricultural University, Changsha 410128, PR China
| | - Fawen Deng
- The Fourth Hospital of Chansha, Changsha 410006, PR China
| | - Zhen Li
- Science College of Hunan Agricultural University, Changsha 410128, PR China
| | - Benxiang Li
- Science College of Hunan Agricultural University, Changsha 410128, PR China.
| | - Zhifa Shen
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou 325035, PR China.
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43
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Electrochemical DNA sensors based on the use of gold nanoparticles: a review on recent developments. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2143-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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44
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Wei Z, Zhang J, Zhang A, Wang Y, Cai X. Electrochemical Detecting Lung Cancer-Associated Antigen Based on Graphene-Gold Nanocomposite. Molecules 2017; 22:E392. [PMID: 28257099 PMCID: PMC6155348 DOI: 10.3390/molecules22030392] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 02/21/2017] [Accepted: 02/28/2017] [Indexed: 11/16/2022] Open
Abstract
Using a Au nanoparticle/reduced graphene oxide composite (AuNP-RGO), a signal-enhanced electrochemical immunosensor without label was created to detect neuron-specific enolase (NSE). Furthermore, an environmentally-friendly method was developed to prepare AuNP-RGO by employing chitosan (CS), which served as reducing and stabilizing agent. We showed that the sensitivity of the immunosensor designed in this report was remarkably enhanced because of the numerous active sites in the sensor provided by the AuNP-RGO nanostructure. For the quantification of NSE, the immunosensor exhibited a positive linear relationship with the concentration in the range of 0.1 to 2000 ng/mL, where the limit of the detection was 0.05 ng/mL.
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Affiliation(s)
- Zheng Wei
- Department of Oncology, Henan Academy institute of Traditional Chinese Medicine, Zhengzhou 450004, Henan, China.
| | - Junping Zhang
- Department of Oncology, Henan Academy institute of Traditional Chinese Medicine, Zhengzhou 450004, Henan, China.
| | - Aihua Zhang
- Department of Oncology, Henan Academy institute of Traditional Chinese Medicine, Zhengzhou 450004, Henan, China.
| | - Yanchun Wang
- Department of Traditional Chinese Medicine, Henan Province People's Hospital, Zhengzhou 450004, Henan, China.
| | - Xiaoping Cai
- Department of Oncology, Henan Academy institute of Traditional Chinese Medicine, Zhengzhou 450004, Henan, China.
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45
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Kamil Reza K, Wang J, Vaidyanathan R, Dey S, Wang Y, Trau M. Electrohydrodynamic-Induced SERS Immunoassay for Extensive Multiplexed Biomarker Sensing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1602902. [PMID: 28004880 DOI: 10.1002/smll.201602902] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/11/2016] [Indexed: 05/22/2023]
Abstract
Cancer diagnosis and patient monitoring require sensitive and simultaneous measurement of multiple cancer biomarkers considering that single biomarker analysis present inadequate information on the underlying biological transformations. Thus, development of sensitive and selective assays for multiple biomarker detection might improve clinical diagnosis and expedite the treatment process. Herein, a microfluidic platform for the rapid, sensitive, and parallel detection of multiple cancer-specific protein biomarkers from complex biological samples is presented. This approach utilizes alternating current electrohydrodynamic-induced surface shear forces that provide exquisite control over fluid flow thereby enhancing target-sensor interactions and minimizing non-specific binding. Further, the use of surface-enhanced Raman scattering-based spectral encoding with individual barcodes for different targets enables specific and simultaneous detection of captured protein biomarkers. Using this approach, the specific and sensitive detection of clinically relevant biomarkers including human epidermal growth factor receptor 2 (HER2); Mucin 1, cell surface associated (MUC1); epidermal growth factor receptor; and Mucin 16, cell surface associated (MUC16) at concentrations as low as 10 fg mL-1 in patient serum is demonstrated. Successful target detection from patient samples further demonstrates the potential of this current approach for the clinical diagnosis, which envisages a clinical translation for a rapid and sensitive appraisal of clinical samples in cancer diagnostics.
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Affiliation(s)
- Khondakar Kamil Reza
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Corner College and Cooper Roads (Bldg 75), Brisbane, QLD, 4072, Australia
| | - Jing Wang
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Corner College and Cooper Roads (Bldg 75), Brisbane, QLD, 4072, Australia
| | - Ramanathan Vaidyanathan
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Corner College and Cooper Roads (Bldg 75), Brisbane, QLD, 4072, Australia
| | - Shuvashis Dey
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Corner College and Cooper Roads (Bldg 75), Brisbane, QLD, 4072, Australia
| | - Yuling Wang
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Corner College and Cooper Roads (Bldg 75), Brisbane, QLD, 4072, Australia
| | - Matt Trau
- Centre for Personalised Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Corner College and Cooper Roads (Bldg 75), Brisbane, QLD, 4072, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
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46
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Su C, Zhao S, Zhang H, Chang K. Ultrafine palladium nanoparticle-bonded to polyetheylenimine grafted reduced graphene oxide nanosheets: Highly active and recyclable catalyst for degradation of dyes and pigments. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-016-0368-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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47
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Qin X, Xu A, Liu L, Sui Y, Li Y, Tan Y, Chen C, Xie Q. Selective staining of CdS on ZnO biolabel for ultrasensitive sandwich-type amperometric immunoassay of human heart-type fatty-acid-binding protein and immunoglobulin G. Biosens Bioelectron 2016; 91:321-327. [PMID: 28039809 DOI: 10.1016/j.bios.2016.12.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/21/2016] [Accepted: 12/21/2016] [Indexed: 10/20/2022]
Abstract
We report on an ultrasensitive metal-labeled amperometric immunoassay of proteins, which is based on the selective staining of nanocrystalline cadmium sulfide (CdS) on ZnO nanocrystals and in-situ microliter-droplet anodic stripping voltammetry (ASV) detection on the immunoelectrode. Briefly, antibody 1 (Ab1), bovine serum albumin (BSA), antigen and ZnO-multiwalled carbon nanotubes (MWCNTs) labeled antibody 2 (Ab2-ZnO-MWCNTs) were successively anchored on a β-cyclodextrin-graphene sheets (CD-GS) nanocomposite modified glassy carbon electrode (GCE), forming a sandwich-type immunoelectrode (Ab2-ZnO-MWCNTs/antigen/BSA/Ab1/CD-GS/GCE). CdS was selectively grown on the catalytic ZnO surfaces through chemical reaction of Cd(NO3)2 and thioacetamide (ZnO-label/CdS-staining), due to the presence of an activated cadmium hydroxide complex on ZnO surfaces that can decompose thioacetamide. A beforehand cathodic "potential control" in air and then injection of 7μL of 0.1M aqueous HNO3 on the immunoelectrode allow dissolution of the stained CdS and simultaneous cathodic preconcentration of atomic Cd onto the electrode surface, thus the following in-situ ASV detection can be used for immunoassay with enhanced sensitivity. Under optimized conditions, human immunoglobulin G (IgG) and human heart-type fatty-acid-binding protein (FABP) are analyzed by this method with ultrahigh sensitivity, excellent selectivity and small reagent-consumption, and the limits of detection (LODs, S/N=3) are 0.4fgmL-1 for IgG and 0.3fgmL-1 for FABP (equivalent to 73 FABP molecules in the 6μL sample employed).
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Affiliation(s)
- Xiaoli Qin
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Aigui Xu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Ling Liu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yuyun Sui
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yunlong Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yueming Tan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Chao Chen
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Qingji Xie
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (MOE of China), Synergetic Innovation Center for Quantum Effects and Applications, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
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48
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Portable detection of clenbuterol using a smartphone-based electrochemical biosensor with electric field-driven acceleration. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.04.022] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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49
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Seo SM, Kim SW, Park JN, Cho JH, Kim HS, Paek SH. A fluorescent immunosensor for high-sensitivity cardiac troponin I using a spatially-controlled polymeric, nano-scale tracer to prevent quenching. Biosens Bioelectron 2016; 83:19-26. [DOI: 10.1016/j.bios.2016.04.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/01/2016] [Accepted: 04/11/2016] [Indexed: 11/25/2022]
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50
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Das J, Ivanov I, Sargent EH, Kelley SO. DNA Clutch Probes for Circulating Tumor DNA Analysis. J Am Chem Soc 2016; 138:11009-16. [DOI: 10.1021/jacs.6b05679] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Shana O. Kelley
- Department
of Biochemistry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada M5S 3M2
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