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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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Li DY, Chen L, Li CY, Zhang J, Zhao Y, Yang YH, Yang T. Nanoplasmonic biosensors for multicolor visual analysis of acetylcholinesterase activity and drug inhibitor screening in point-of-care testing. Biosens Bioelectron 2024; 247:115912. [PMID: 38096721 DOI: 10.1016/j.bios.2023.115912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/28/2023] [Accepted: 12/03/2023] [Indexed: 01/02/2024]
Abstract
The monitoring of acetylcholinesterase (AChE) activity and the screening of its inhibitors are significance of the diagnosis and drug therapy of nervous diseases. A metal ions-mediated signal amplification strategy was developed for the highly sensitive and multicolor assay of AChE activity and visually screening its drug inhibitors. After the specific reaction between AChE and acetylthiocholine (ATCh), the hydrolysis product thiocholine (TCh) can directly and decompose the α-FeOOH nanorods (NRs) to release amounts of Fe2+, which was regarded as Fenton reagent to efficiently catalyze H2O2 to produce ·OH. Then, the as-formed ·OH can further largely shorten the gold nanobipyramids (Au NBPs), generating a series of palpable color variations. The linear range for AChE activity was 0.01-500.0 U/L with the limit of detection as low as 0.0074 U/L. The vivid visual effects could be easily distinguished for the multicolor assay of AChE activity by naked eye in visible light. To achieve the point-of-care testing, Au NBPs were further assembled on polymeric electrospun nanofibrous films (ENFs) surface as test strips for the easy-to-use test of AChE activity by RGB values with a smartphone. Fascinatingly, this proposed strategy can be used for the visual screening AChE inhibitors or non-inhibitors. Comparing with the clinical drugs (rivastigmine tartrate, and donepezil), some natural alkaloids such as evodiamine, caffeine, camptothecin, and berberine hydrochloride were selected as inhibitor modes to confirm the drug screening capability of this method. This proposed strategy may have great potential in the other disease-related enzymatic biomarkers assay and the rapid screening of drug therapy.
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Affiliation(s)
- De Yan Li
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, Yunnan Province, PR China
| | - Lu Chen
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, Yunnan Province, PR China
| | - Cai Yan Li
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, Yunnan Province, PR China
| | - Jin Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, Yunnan Province, PR China
| | - Yan Zhao
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, Yunnan Province, PR China
| | - Yun Hui Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, Yunnan Province, PR China
| | - Tong Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650500, Yunnan Province, PR China.
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4
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Xu H, Guo J, Zhao J, Gao Z, Song YY. Enantioselective Target Transport-Mediated Nanozyme Decomposition for the Identification of Reducing Enantiomers in Asymmetric Nanochannel Arrays. Anal Chem 2023; 95:14465-14474. [PMID: 37699410 DOI: 10.1021/acs.analchem.3c03089] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Enantioselective identification of chiral molecules is regarded as one of the key issues in biological and medical sciences because of their configuration-dependent effects on biological systems. In this study, we developed an electrochemical platform based on a tandem recognition-reaction zone design in TiO2 nanochannels for the specific recognition of reducing enantiomers. In this system, MIL-125(Ti) Ti-metal-organic frameworks, in situ grown in TiO2 nanochannels, provided a homochiral recognition environment via postmodification with l-tartaric acid (l-TA); MnO2 nanosheets possessing both glucose oxidase (GOD)- and peroxidase (POD)-mimicking activities served as the target-reactive zone at the end of the nanochannels. The use of penicillamine (Pen) enantiomers as model-reducing targets facilitated the passage of d-Pen through the homochiral recognition zone, owing to its lower affinity with l-TA. The passed Pen molecules reached the responsive zone and induced a target concentration-dependent MnO2 disassembly. Such target recognition event impaired the cascade GOD- and POD-like activities of MnO2. Combining the enantioselectivity of the recognition nanochannels with the cascade enzyme-like activity of MnO2 toward glucose and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate), the quantitative identification of l- and d-Pen was achieved through the changes in transmembrane ionic current induced by the generated charged products. This recognition-reaction zone design paves an effective way for developing a promising electrochemical platform for the identification of reducing enantiomers with improved selectivity and sensitivity.
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Affiliation(s)
- Huijie Xu
- Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, People's Republic of China
| | - Junli Guo
- Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, People's Republic of China
| | - Junjian Zhao
- Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, People's Republic of China
| | - Zhida Gao
- Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, People's Republic of China
| | - Yan-Yan Song
- Department of Chemistry, College of Science, Northeastern University, Shenyang 110819, People's Republic of China
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Liu L, Chang Y, Lou J, Zhang S, Yi X. Overview on the Development of Alkaline-Phosphatase-Linked Optical Immunoassays. Molecules 2023; 28:6565. [PMID: 37764341 PMCID: PMC10536125 DOI: 10.3390/molecules28186565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
The drive to achieve ultrasensitive target detection with exceptional efficiency and accuracy requires the advancement of immunoassays. Optical immunoassays have demonstrated significant potential in clinical diagnosis, food safety, environmental protection, and other fields. Through the innovative and feasible combination of enzyme catalysis and optical immunoassays, notable progress has been made in enhancing analytical performances. Among the kinds of reporter enzymes, alkaline phosphatase (ALP) stands out due to its high catalytic activity, elevated turnover number, and broad substrate specificity, rendering it an excellent candidate for the development of various immunoassays. This review provides a systematic evaluation of the advancements in optical immunoassays by employing ALP as the signal label, encompassing fluorescence, colorimetry, chemiluminescence, and surface-enhanced Raman scattering. Particular emphasis is placed on the fundamental signal amplification strategies employed in ALP-linked immunoassays. Furthermore, this work briefly discusses the proposed solutions and challenges that need to be addressed to further enhance the performances of ALP-linked immunoassays.
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Affiliation(s)
- Lin Liu
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yong Chang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Jiaxin Lou
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Shuo Zhang
- 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
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6
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Liu L, Wang H, Sulemana H, Xie B, Gao L. Detection of Alpha Fetoprotein Based on AIEgen Nanosphere Labeled Aptamer Combined with Sandwich Structure of Magnetic Gold Nanocomposites. BIOSENSORS 2023; 13:351. [PMID: 36979562 PMCID: PMC10046738 DOI: 10.3390/bios13030351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
As a biomarker, alpha-fetoprotein (AFP) is valuable for detecting some tumors in men, non-pregnant women, and children. However, the detection sensitivity in some methods needs to be improved. Therefore, developing a simple, reliable, and sensitive detection method for AFP is important for non-malignant diseases. An aptamer binding was developed based on aggregation-induced emission luminogen (AIEgen) nanosphere labeled with Fe3O4@MPTMS@AuNPs. AFP was detected with a sandwich structure of AuNPs magnetic composite particles. An aggregation-induced emission (AIE) molecule and polystyrene (PS) nanosphere complex were assembled, enhancing the fluorescence and improving the sensitivity of detection. The limit of detection (LOD) was at a given level of 1.429 pg/mL, which can best be achieved in serum samples. Finally, the results obtained showed the complex to be promising in practical applications.
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Affiliation(s)
- Lei Liu
- Department of Kidney Transplantation, The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - Huixing Wang
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Husseini Sulemana
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Bing Xie
- The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang 212001, China
| | - Li Gao
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
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7
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Raja L, Venkatesan S, Lin MC, Vediappen P. Green synthesis of naphthyl derivative as an optical sensor for the detection of l-carnitine in food samples. LUMINESCENCE 2023; 38:224-231. [PMID: 36602149 DOI: 10.1002/bio.4436] [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: 11/05/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
An economical and green approach to the synthesis of naphthyl derivative for detection of l-carnitine (3-hydroxy-4-N-trimethyl-aminobutyrate) is practically important. We developed a naphthyl derivative as a probe showing 'turn-on' response towards l-carnitine selectively at pH 7.2 through ICT mechanism with a good limit of detection (LOD) of 0.126 μM. Using Job's plot for determining the binding stoichiometry, it was found that probe could form a more stable complex (1:1) with carnitine. The binding constant (K) between probe and carnitine was calculated as 8 × 107 M-1 using the Benesi-Hildebrand plot. The binding interaction of the probe with l-carnitine was confirmed by nuclear magnetic resonance titrations, Fourier-transform infrared spectroscopy, photo physical studies and density functional theory calculations. Meanwhile, the probe can be used to quantitatively detect carnitine in food samples.
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Affiliation(s)
- Lavanya Raja
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, Tamilnadu, India
| | - Srinivasadesikan Venkatesan
- Department of Chemistry, Department of Sciences and Humanities, Vignan's Foundation for Science Technology and Research, Guntur, Andhra Pradesh, India
| | - Ming-Chang Lin
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Padmini Vediappen
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, Tamilnadu, India
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8
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Dotan T, Jog A, Kadan-Jamal K, Avni A, Shacham-Diamand Y. In Vivo Plant Bio-Electrochemical Sensor Using Redox Cycling. BIOSENSORS 2023; 13:219. [PMID: 36831984 PMCID: PMC9953906 DOI: 10.3390/bios13020219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
This work presents an in vivo stem-mounted sensor for Nicotiana tabacum plants and an in situ cell suspension sensor for Solanum lycopersicum cells. Stem-mounted sensors are mechanically stable and less sensitive to plant and air movements than the previously demonstrated leaf-mounted sensors. Interdigitated-electrode-arrays with a dual working electrode configuration were used with an auxiliary electrode and an Ag/AgCl quasi-reference electrode. Signal amplification by redox cycling is demonstrated for a plant-based sensor responding to enzyme expression induced by different cues in the plants. Functional biosensing is demonstrated, first for constitutive enzyme expression and later, for heat-shock-induced enzyme expression in plants. In the cell suspension with redox cycling, positive detection of the enzyme β-glucuronidase (GUS) was observed within a few minutes after applying the substrate (pNPG, 4-Nitrophenyl β-D-glucopyranoside), following redox reactions of the product (p-nitrophenol (pNP)). It is assumed that the initial reaction is the irreversible reduction of pNP to p-hydroxylaminophenol. Next, it can be either oxidized to p-nitrosophenol or dehydrated and oxidized to aminophenol. Both last reactions are reversible and can be used for redox cycling. The dual-electrode redox-cycling electrochemical signal was an order of magnitude larger than that of conventional single-working electrode transducers. A simple model for the gain is presented, predicting that an even larger gain is possible for sub-micron electrodes. In summary, this work demonstrates, for the first time, a redox cycling-based in vivo plant sensor, where diffusion-based amplification occurs inside a tobacco plant's tissue. The technique can be applied to other plants as well as to medical and environmental monitoring systems.
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Affiliation(s)
- Tali Dotan
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- Department of Material Science and Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| | - Aakash Jog
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| | - Kian Kadan-Jamal
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- Department of Material Science and Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
| | - Adi Avni
- School of Plant Sciences and Food Security, Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Yosi Shacham-Diamand
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- Department of Material Science and Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- TAU/TiET Food Security Center of Excellence (TTFSCoE), Thapar Institute of Engineering and Technology, Patiala 147004, India
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9
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Song D, Yuan D, Tan X, Li L, He H, Zhao L, Yang G, Pan S, Dai H, Song X, Zhao Y. Allosteric aptasensor-initiated target cycling and transcription amplification of light-up RNA aptamer for sensitive detection of protein. SENSORS AND ACTUATORS. B, CHEMICAL 2022; 371:132526. [PMID: 35996600 PMCID: PMC9385276 DOI: 10.1016/j.snb.2022.132526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/31/2022] [Accepted: 08/16/2022] [Indexed: 06/10/2023]
Abstract
The early detection of biomarker proteins in clinical samples is of great significance for the diagnosis of diseases. However, it is still a challenge to detect low-concentration protein. Herein, a label-free aptamer-based amplification assay, termed the ATC-TA system, that allows fluorescence detection of very low numbers of protein without time-consuming washing steps and pre-treatment was developed. The target induces a conformational change in the allosteric aptasensor, triggers the target cycling and transcription amplification, and ultimately converts the input of the target protein into the output of the light-up aptamer (R-Pepper). It exhibits ultrahigh sensitivity with a detection limit of 5.62 fM at 37 ℃ and the accuracy is comparable to conventional ELISA. ATC-TA has potential application for the detection of endogenous PDGF-BB in serum samples to distinguish tumor mice from healthy mice at an early stage. It also successfully detects exogenous SARS-CoV-2 spike proteins in human serum. Therefore, this high-sensitive, universality, easy-to-operate and cost-effective biosensing platform holds great clinical application potential in early clinical diagnosis.
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Affiliation(s)
- Danxia Song
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Deyu Yuan
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Xuemei Tan
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Ling Li
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Huan He
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Liang Zhao
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Gang Yang
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Sirui Pan
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Hongyuan Dai
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Xu Song
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
| | - Yongyun Zhao
- Center for Functional Genomics and Bioinformatics, College of Life Science, Sichuan University, Chengdu, Sichuan 610064, PR China
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Yadav S, Satija J. Shape dependent sensing potential of gold nanoparticles in etching based multicolorimetric plasmonic-ELISA. NANOSCALE ADVANCES 2022; 4:3928-3939. [PMID: 36133352 PMCID: PMC9470088 DOI: 10.1039/d2na00266c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/16/2022] [Indexed: 06/16/2023]
Abstract
In the present study, a systematic investigation has been carried out for the first time to assess the potential of three different shapes of gold nanoparticles (AuNPs), viz. nanorods (AuNRs), nanotriangles (AuNTs), and nanospheres (AuNSs), to develop a horseradish peroxidase (HRP) enzyme-mediated etching-based plasmonic ELISA (p-ELISA) strategy. The etching of the AuNPs in ELISA is achieved by 3'-3-5'-5-tetramethylbenzidine (TMB2+), which is produced by the biocatalytic conversion of chromogenic TMB via HRP. All three types of AuNPs were interacted with varying concentrations of TMB2+ (7-131 μM) (product of HRP enzyme reaction) and characterized for visible color change and by UV-Vis spectroscopy and transmission electron microscopy (TEM). From the comparative analysis of all three shapes of AuNPs, AuNRs exhibited vivid visible color change and absorbance intensity change compared to spherical and triangle-shaped nanoparticles. The TEM analysis of the etched nanoparticles revealed the gradual etching pattern of AuNRs compared to AuNTs which resulted in multicolor generation as opposed to AuNTs where the etching was relatively very fast and thus shows a faster shape transformation and poor color discrimination. Further, the potential of the AuNR etching-based optimized strategy was successfully demonstrated to develop an indirect competitive p-ELISA for human IgG detection. The developed p-ELISA showed an ultra-low visual limit of detection of 1 fg mL-1 (∼6.54 aM) without the aid of any sophisticated instruments. In the future, the developed competitive p-ELISA strategy can be easily employed to develop cost-effective, portable, and point-of-care assays for the detection of various disease biomarkers with ultra-high sensitivity.
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Affiliation(s)
- Sangeeta Yadav
- School of Biosciences and Technology, Vellore Institute of Technology (VIT) Vellore-632014 Tamilnadu India
| | - Jitendra Satija
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT) Vellore-632014 Tamilnadu India
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11
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Shaban SM, Byeok Jo S, Hafez E, Ho Cho J, Kim DH. A comprehensive overview on alkaline phosphatase targeting and reporting assays. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214567] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Su R, Xia L, Li G, Xiao X. A controlled recognizing and releasing glycoprotein based on temperature-responsive phenylboronic microgels for colorimetric analysis of complex samples. Talanta 2022; 241:123260. [DOI: 10.1016/j.talanta.2022.123260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 01/15/2022] [Accepted: 01/22/2022] [Indexed: 02/07/2023]
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13
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Sun P, Li Y, Li J, Zhang Y. Entrapment of horseradish peroxidase into nanometer-scale metal-organic frameworks: a new nanocarrier for signal amplification in enzyme-linked immunosorbent assay. Mikrochim Acta 2021; 188:409. [PMID: 34739603 DOI: 10.1007/s00604-021-05065-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/12/2021] [Indexed: 11/24/2022]
Abstract
Horseradish peroxidase (HRP) was highly loaded into large holes of nanometer-scale metal-organic frameworks (i.e., PCN-333(Al)) for signal amplification in enzyme-linked immunosorbent assay (ELISA). The enzyme-labeled antibody complex prepared using nanometer-scale PCN-333(Al) maintained a high catalytic efficiency. Its Vm and Kcat values with 3,3',5,5'-Tetramethylbenzidine (TMB)-H2O2 as substrates were 4.84 × 10-5 mM/s and 4.84 × 104 min-1, respectively. We demonstrated an HRP@PCN-333 signal amplification strategy for colorimetric assay of human prostate-specific antigen (PSA). The linear range of PSA detection by using this method was 15-165 pg/mL, and the limit of detection was 6 pg/mL (S/N = 3), indicating the potential application of this method in detecting disease markers under clinical conditions. The presented strategy exhibited the characteristics of significantly increased amount of labeled enzymes, improved stability and utilization of enzymes, simple preparation process of enzyme-labeled antibodies, and low cost.
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Affiliation(s)
- Pengyue Sun
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Changan West Road 620, Xi'an, 710119, China
| | - Yao Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Changan West Road 620, Xi'an, 710119, China
| | - Jing Li
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Changan West Road 620, Xi'an, 710119, China
| | - Yaodong Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Changan West Road 620, Xi'an, 710119, China.
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14
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Wei YY, Zhang YZ, Song D, Li J, Xu ZR. Alkaline phosphatase-regulated in situ formation of chromogenic probes for multicolor visual sensing of biomarkers. Talanta 2021; 228:122222. [DOI: 10.1016/j.talanta.2021.122222] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 02/07/2021] [Accepted: 02/13/2021] [Indexed: 12/31/2022]
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15
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Liao XJ, Xiao HJ, Cao JT, Ren SW, Liu YM. A novel split-type photoelectrochemical immunosensor based on chemical redox cycling amplification for sensitive detection of cardiac troponin I. Talanta 2021; 233:122564. [PMID: 34215060 DOI: 10.1016/j.talanta.2021.122564] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/23/2021] [Accepted: 05/25/2021] [Indexed: 10/21/2022]
Abstract
Photoelectrochemical (PEC) immunoassay is a burgeoning and promising bioanalytical method. However, the practical application of PEC still exist some challenges such as the inevitable damage of biomolecules caused by the PEC system and the unsatisfactory sensitivity for biomarkers with low abundance in real sample. To solve the problems, we integrated the cosensitized structure of Ag2S/ZnO nanocomposities as photoelectrode with photogenerated hole-induced chemical redox cycling amplification (CRCA) strategy to develop a split-type PEC immunosensor for cardiac troponin I (cTnI) with high sensitivity. Initially, the immunoreaction was carried out on the 96-well plates in which alkaline phosphatase (ALP) could catalyze ascorbic acid 2-phosphate (AAP) to generate the signal-reporting species ascorbic acid (AA). Subsequently, the AA participated and the tris (2-carboxyethyl) phosphine (TCEP) mediated chemical redox cycling reaction took place on the photoelectrode, thus leading to signal amplification. Under the optimized conditions, the immunosensor demonstrated a detection limit (LOD) of 3.0 × 10-15 g mL-1 with a detection range of 1.0 × 10-14 g mL-1 to 1.0 × 10-9 g mL-1 for cTnI. Impressively, the proposed method could determine the cTnI in human serum samples with high sensitivity and satisfactory accuracy. Considering the virtues of the photoelectrode and the chemical redox cycling strategy, the method would hold great potential for highly sensitive biosensing and bioanalysis.
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Affiliation(s)
- Xiao-Jing Liao
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, China
| | - Hui-Jin Xiao
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, China
| | - Jun-Tao Cao
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, China; Shandong Key Laboratory of Biochemical Analysis, Qingdao University of Science and Technology, Qingdao 266042, China.
| | - Shu-Wei Ren
- Xinyang Central Hospital, Xinyang 464000, China
| | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang 464000, China.
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16
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Wang S, Huang M, Hua J, Wei L, Lin S, Xiao L. Digital counting of single semiconducting polymer nanoparticles for the detection of alkaline phosphatase. NANOSCALE 2021; 13:4946-4955. [PMID: 33629092 DOI: 10.1039/d0nr09232k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Alkaline phosphatase (ALP) as a necessary hydrolase in phosphate metabolism is closely related to various diseases. Ultrasensitive detection of ALP with a convenient and sensitive method is of fundamental importance. In this work, a fluorescence resonance energy transfer (FRET)-based single-particle enumeration (SPE) method is proposed for the quantitative analysis of ALP. This strategy is based on the effective fluorescence suppression by a polydopamine (PDA) shell on the surface of semiconducting polymer nanoparticles (SPNs). PDA with broadband absorption in the UV-vis region can serve as an excellent quencher for SPNs. However, ascorbic acid (AA), the product of the hydrolysis of 2-phosphate-l-ascorbic acid trisodium salt (AAP) in the presence of ALP, can effectively inhibit the self-polymerization of dopamine (DA) to form a PDA layer. Therefore, ALP can be accurately quantified by counting the concentration-related fluorescent particles in the fluorescence image. A linear range from 0.031 to 12.4 μU mL-1 and a limit-of-detection (LOD) of 0.01 μU mL-1 for ALP determination are achieved. The spiked recoveries for ALP determination in a human serum sample are between 90% and 108% with RSD less than 3.1%. In summary, this convenient and sensitive approach proposed here provides promising prospects for ALP detection in a complex biological matrix.
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Affiliation(s)
- Shumin Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China. and State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Mengna Huang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
| | - Jianhao Hua
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lin Wei
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of Phytochemical R&D of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China.
| | - Shen Lin
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
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Zhang X, Wu Y, Chen J, Yang Y, Li G. Bioinspired Artificial "Clickase" for the Catalytic Click Immunoassay of Foodborne Pathogens. Anal Chem 2021; 93:3217-3225. [PMID: 33525867 DOI: 10.1021/acs.analchem.0c04732] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) click reaction has drawn increasing attention in the field of analytical science. However, the poor stability of Cu(I) usually hinders not only the simplicity of the click reaction but also its applications in precise analyses. Therefore, the development of a nanocatalyst containing stable Cu(I) is of great significance for broadening the application of CuAAC-based assays. Herein, inspired by the active center structure of natural multicopper oxidases (MCOs), we successfully prepared a novel nanocatalyst containing abundant stable Cu(I) as an artificial "clickase" (namely, CCN) by using glutathione to stabilize Cu(I). The stability and enzyme-like catalytic activity in the CuAAC reaction of the prepared CCN clickase were studied, and the catalytic mechanism of the CCN clickase-mediated CuAAC reaction between 3-azide-7-hydroxycoumarin (Azide 1) and propargyl alcohol (Alkyne 2) was also revealed. Compared with the existing solid CuO nanocatalysts used in CuAAC-based assays, CCN clickases exhibited plenty of superior properties (including high stability, excellent catalytic activity, no requirements of dissolution and reducing agents/radical initiator during the detection, well-defined porosities benefiting the substrate diffusion, and good biocompatibility), which can greatly increase the reaction efficiency and shorten the detection time. Encouraged by these remarkable performances, CCN clickases were used as labels to establish a new catalytic click fluorescence immunoassay for foodborne pathogens. Notably, the proposed CCN clickase-based immunoassay exhibited high analytical performances for the quantification of Salmonella enteritidis in the linear range of 102-106 CFU/mL with a limit of detection as low as 11 CFU/mL. The developed method has also been used in the determination of S. enteritidis in food samples, showing its great potential in the detection of foodborne pathogens.
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Affiliation(s)
- Xianlong Zhang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yongning Wu
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.,NHC Key Laboratory of Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Juhong Chen
- Department of Biological Systems Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Yan Yang
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Guoliang Li
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
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18
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Quantification of methylisomiroestrol, a phytoestrogen of Pueraria candollei, by enzyme-linked immunosorbent assay in comparison with high-performance liquid chromatography. J Pharm Biomed Anal 2020; 192:113674. [PMID: 33120305 DOI: 10.1016/j.jpba.2020.113674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/24/2020] [Accepted: 10/03/2020] [Indexed: 11/22/2022]
Abstract
Pueraria candollei is a phytoestrogen-rich herb used to treat estrogen deficiency disorders; however, quality control of P. candollei-related health products is required for consistency of clinical outcomes. Estrogenically active (+)-7-O-methylisomiroestrol could be a potential chemical marker that facilitates the prediction of the overall estrogenic activity of P. candollei. The analytical performance of ELISA using newly produced monoclonal antibodies against methylisomiroestrol was compared with HPLC analysis. The developed indirect competitive ELISA (icELISA) was highly sensitive to methylisomiroestrol for detection, with an LOQ of 2.9 ng/mL, whereas the LOQ was 1.15 μg/mL by HPLC. The results from method validation indicated acceptable precision (1.71-6.37 % and 0.13-2.40 %) and accuracy (99.23-102.54 % and 96.84-101.88 %) of the methylisomiroestrol analysis using icELISA and HPLC. These methods were effectively applied for the determination of the methylisomiroestrol content in P. candollei samples. Apart from the plant tubers, the stem was observed as a source of methylisomiroestrol. The developed ELISA was more effective than HPLC in detecting a small quantity of methylisomiroestrol in the plant samples [0.23 × 10-3% (w/w) to 0.628 × 10-3% (w/w) dry weight]. Therefore, the ELISA could be a useful tool for the standardization of P. candollei, which is the crucial step to improve the quality of plant-derived products.
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Ishimatsu R, Shimizu S, Hongsibsong S, Nakano K, Malasuk C, Oki Y, Morita K. Enzyme-linked immunosorbent assay based on light absorption of enzymatically generated aniline oligomer: Flow injection analysis for 3-phenoxybenzoic acid with anti-3-phenoxybenzoic acid monoclonal antibody. Talanta 2020; 218:121102. [PMID: 32797869 DOI: 10.1016/j.talanta.2020.121102] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 12/13/2022]
Abstract
A flow enzyme-linked immunosorbent assay (ELISA) method based on light absorption by enzymatically generated aniline oligomer in the presence of horseradish peroxidase (HRP), H2O2, and aniline is proposed. Aniline oligomer is rapidly formed through the polymerization reaction via the enzymatic reaction, and its fast reaction rate is beneficial for flow ELISA. An anti-3-phenoxybenzoic acid monoclonal antibody (mAb) was produced by mice, and was used for the flow competitive ELISA for the determination of 3-phenoxybenzoic acid (3PBA), which was performed on an acrylic plate having a Y-shaped channel. ABS resin beads (d = 1 mm) were filled in the channel to increase the surface area for the adsorption of the mAb. A clank-type detection chamber (optical length: 1 cm) made of polydimethylsiloxane (PDMS) containing carbon black, which can significantly decrease light scattering, was fabricated with a 3D printer. The PDMS detection chamber was connected to the outlet of the acrylic flow chip with a tube. A blue LED was used as a light source for the flow ELISA. The inhabitation concentration at 50% and the detection range (absorbance change from 90 to 10%) for the proposed flow competitive ELISA were 0.5 ppm and 0.05-5 ppm, respectively. We also performed the flow competitive ELISA in an artificial and real urine, and no significant matrix effect of the urine samples on the ELISA was found.
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Affiliation(s)
- Ryoichi Ishimatsu
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
| | - Shinichi Shimizu
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Surat Hongsibsong
- NCD Center, Research Institute for Health Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Koji Nakano
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Chacriya Malasuk
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yuji Oki
- Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kinichi Morita
- New Business Development Office, USHIO INC, 6-5 Marunouchi 1-chome, Chiyoda-ku, Tokyo, 100- 8150, Japan
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20
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In situ formation of fluorescent silicon-containing polymer dots for alkaline phosphatase activity detection and immunoassay. Sci China Chem 2020. [DOI: 10.1007/s11426-019-9690-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Liu L, Zhang A, Wang X. A Sensitive and Simple Enzyme-Linked Immunosorbent Assay Using Polymer as Carrier. Biol Pharm Bull 2020; 43:757-761. [PMID: 32132342 DOI: 10.1248/bpb.b20-00048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this study, a new and sensitive enzyme-linked immunosorbent assay (ELISA) was developed by introducing a polymer as a reaction carrier. The results suggest that the newly developed ELISA method is more convenient than the existing paper-based ELISA method and applicable to a wider range of environments. In addition, the sensitivity of the new method is much higher than that of the existing paper-based ELISA method and even higher than that of the traditional ELISA method.
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Affiliation(s)
- Long Liu
- Phase I Clinical Trial Center, Beijing Shijitan Hospital, Capital Medical University
| | - Aihong Zhang
- Nuclear Biochemical Emergency Technical Support Center, Institute of Chemical Defense
| | - Xinghe Wang
- Phase I Clinical Trial Center, Beijing Shijitan Hospital, Capital Medical University
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22
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Bajgiran KR, Dorman JA, Melvin AT. Dipole-Modulated Downconversion Nanoparticles as Label-Free Biological Sensors. ACS Sens 2020; 5:29-33. [PMID: 31904223 DOI: 10.1021/acssensors.9b02204] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Ultrasensitive detection of proteins and biomolecules has been previously achieved by optical nanoparticles (NPs) using the principles of Förster resonance energy transfer (FRET). However, the inherent need for labeling the target analyte in these assays hinders their applicability in point-of-use (POU) diagnostics. In this work, a label-free NP-based sensor has been developed that utilizes downconversion luminescence and surface electric dipoles as a novel approach for the detection of avidin. The long-lived luminescence of Eu3+-doped biotinylated NPs was effectively quenched in the presence of avidin in a concentration-dependent manner. The NPs exhibited high avidin selectivity and sensitivity with a limit of detection (LOD) of 7.8 nM and a wide dynamic range spanning 1 nM to 10 μM in deionized (DI) water. The application of the assay in a complex biological matrix consisting of cell growth medium supplemented with 10% v/v serum was verified with minor effects on avidin sensitivity exhibited by an LOD of 34.7 nM. The performance of the system was evaluated by comparing the photoluminescence (PL) intensities of known avidin concentration and the values predicted by the generated calibration curve. The new biosensing strategy has the potential to be extended to the detection of other disease biomarkers or pathogens with LOD and limited matrix effects in POU settings.
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Affiliation(s)
- Khashayar R. Bajgiran
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - James A. Dorman
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Adam T. Melvin
- Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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23
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Ultrasensitive aptamer-based protein assays based on one-dimensional core-shell nanozymes. Biosens Bioelectron 2019; 150:111881. [PMID: 31780408 DOI: 10.1016/j.bios.2019.111881] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/27/2019] [Accepted: 11/12/2019] [Indexed: 01/08/2023]
Abstract
In enzyme-based immunoassys, the use of natural enzyme has been remarkably restricted by the inconvenience in preparation and storage, especially for point-of-care testing. Nanozymes, which can mimic the functions of natural enzymes, have been regarded as promising alternatives due to their robust stability and convenience in fabrication. Here we fabricated one-dimensional Fe3O4@C core-shell nanostructures via a solvent-thermal method. Thus prepared nanocomposites showed excellent peroxidase-like activity, capable of catalyzing chromogenic substrates into colored products in the presence of H2O2. We then developed a nanozyme-linked aptamer sorbent assay (NLASA) in a sandwich format, in which the as-prepared Fe3O4@C nanowires were employed as catalytic labels for colorimetric detection by naked eyes. In the detection of platelet-derived growth factor BB (PDGF-BB), this assay reliably exhibited detection limits as low as 10 fM, with a working range from 10 fM to 100 nM. By incorporating G-quadruplex-hemin DNAzyme with Fe3O4@C nanowires, the detection limit could be further lowered to 50 aM. The detection limit of PDGF-BB in 50% human serum was 100 fM. This ultrasensitive, cost-effective and easy-to-operate sensing platform offers new opportunities for protein detection in clinical diagnosis.
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24
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Yu W, Li Y, Xie B, Ma M, Chen C, Li C, Yu X, Wang Z, Wen K, Tang BZ, Shen J. An Aggregation-Induced Emission-Based Indirect Competitive Immunoassay for Fluorescence "Turn-On" Detection of Drug Residues in Foodstuffs. Front Chem 2019; 7:228. [PMID: 31069213 PMCID: PMC6491695 DOI: 10.3389/fchem.2019.00228] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 03/22/2019] [Indexed: 12/31/2022] Open
Abstract
A new fluorescent "turn-on" probe-based immunosensor for detecting drug residues in foodstuffs was established by combining the mechanism of aggregation-induced emission (AIE) and an indirect competitive enzyme-linked immunosorbent assay (ELISA). In this study, a luminogen, with negligible fluorescence emission (TPE-HPro), aggregated in the presence of H2O2, and exhibited astrong yellow emission based on its AIE characteristics. This AIE process was further configured into an immunoassay for analyzing drug residues in foodstuffs. In this approach, glucose oxidase (GOx) was used as an enzyme label for the immunoassay and triggered GOx/glucose-mediated H2O2 generation, which caused oxidation of TPE-HPro and a "turn-on" fluorescence response at 540 nm. To quantitatively analyze the drug residues in foodstuffs, we used amantadine (AMD) as an assay model. By combining the AIE-active "turn-on" fluorescent signal generation mechanism with conventional ELISAs, quantifying AMD concentrations in chicken muscle samples was realized with an IC50 (50% inhibitory concentration) value of 0.38 ng/mL in buffer and a limited detection of 0.06 μg/kg in chicken samples. Overall, the conceptual integration of AIE with ELISA represents a potent and sensitive strategy that broadens the applicability of the AIE-based fluorometric assays.
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Affiliation(s)
- Wenbo Yu
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ying Li
- Division of Life Science, Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, The Hong Kong University of Science and Technology, Kowloon, China
| | - Bing Xie
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Mingfang Ma
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chaochao Chen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Chenglong Li
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xuezhi Yu
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Zhanhui Wang
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Kai Wen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Ben Zhong Tang
- Division of Life Science, Department of Chemical and Biological Engineering, Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and Reconstruction, Institute for Advanced Study, The Hong Kong University of Science and Technology, Kowloon, China
| | - Jianzhong Shen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, China
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Liu L, Hao Y, Deng D, Xia N. Nanomaterials-Based Colorimetric Immunoassays. NANOMATERIALS 2019; 9:nano9030316. [PMID: 30818816 PMCID: PMC6473401 DOI: 10.3390/nano9030316] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 01/05/2023]
Abstract
Colorimetric immunoassays for tumor marker detection have attracted considerable attention due to their simplicity and high efficiency. With the achievements of nanotechnology and nanoscience, nanomaterials-based colorimetric immunoassays have been demonstrated to be promising alternatives to conventional colorimetric enzyme-linked immunoassays. This review is focused on the progress in colorimetric immunoassays with the signal amplification of nanomaterials, including nanomaterials-based artificial enzymes to catalyze the chromogenic reactions, analyte-induced aggregation or size/morphology change of nanomaterials, nanomaterials as the carriers for loading enzyme labels, and chromogenic reactions induced by the constituent elements released from nanomaterials.
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Affiliation(s)
- Lin Liu
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, China.
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Yuanqiang Hao
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.
| | - Dehua Deng
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, China.
| | - Ning Xia
- Henan Province of Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455000, China.
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