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Park J. Smartphone based lateral flow immunoassay quantifications. J Immunol Methods 2024; 533:113745. [PMID: 39173705 DOI: 10.1016/j.jim.2024.113745] [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: 04/18/2024] [Revised: 07/21/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024]
Abstract
Lateral Flow Immunoassay (LFI) is a disposable tool designed to detect target substances using minimal resources. For qualitative analysis, LFI does not require a device (i.e., reader) to interpret test results. However, various studies have been conducted to implement quantitative analysis using LFI systems, incorporating LFI along with electrical/electronic readers, to overcome the limitations associated with qualitative LFI analysis. The reader used for the quantitative analysis of LFI should ensure mobility for easy on-site diagnostics and inspections, be user-friendly in operation, and have a fast processing speed until the results are obtained. Due to these requirements, smartphones are increasingly utilized as readers in quantitative analysis of LFI. Among the various components constituting a smartphone, high-performance cameras can serve as sensors converting visual signals into electrical signals. With powerful processing units, large storage capacity, and network capabilities for transmitting analysis results, smartphones are also utilized as interfaces for quantitative analysis. Absolutely, the widespread global use of smartphones is a key advantage, leading to their utilization as diagnostic devices for acquiring, analyzing, storing, and transmitting assay test results. This paper summarizes research cases where smartphones are utilized as readers for quantitative LFI systems used in confirming contamination in food or the environment, detecting drugs, and diagnosing diseases in humans or animals. The systems are classified based on the types of label particles used in the assay, and efforts to improve the quantitative analysis performance for each are examined. Cases where smartphones were used as LFI readers for the diagnosis of the 2019 Coronavirus Disease (COVID-19), which has recently caused significant global damage, have also been investigated.
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Affiliation(s)
- Jongwon Park
- Department of Biomedical Engineering, Kyungil University, Gyeongsan 38428, Republic of Korea.
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2
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Li W, Yang X, Wang D, Xie J, Wang S, Rong Z. A handheld fluorescent lateral flow immunoassay platform for highly sensitive point-of-care detection of methamphetamine and tramadol. Talanta 2024; 277:126438. [PMID: 38897012 DOI: 10.1016/j.talanta.2024.126438] [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: 03/13/2024] [Revised: 05/23/2024] [Accepted: 06/14/2024] [Indexed: 06/21/2024]
Abstract
The escalating issue of drug abuse poses a significant threat to public health and societal stability worldwide. An on-site drug detection platform is vital for combating drug abuse and trafficking, as it eliminates the need for additional tools, extensive processes, or specialized training. Therefore, it is imperative to develop a fast, sensitive, non-invasive, and reliable multiplex drug testing platform. In this study, we have presented a silica core@dual quantum dot-shell nanocomposite (SI/DQD)-based fluorescent lateral flow immunoassay (LFIA) platform for the highly sensitive and simultaneous point-of-care (POC) detection of methamphetamine (MET) and tramadol (TR). A 3D-printed attachment was designed to integrate optical and electrical components, facilitating the miniaturization of the instrument and reducing both cost and complexity. The device's advanced hardware and effective fluorescence extraction algorithm with waveform reconstruction enable swift, automatic noise reduction and data analysis. SI/DQD nanocomposites were utilized as fluorescent nanotags in the LFIA strips due to their outstanding luminous efficiency and robustness. This LFIA platform achieves impressive detection limits (LODs) of 0.11 ng mL-1 for MET and 0.017 ng mL-1 for TR. The method has also successfully detected MET and TR in complex biological samples, demonstrating its practical application capabilities. The proposed fluorescent LFIA platform, based on SI/DQD technology, holds significant promise for the swift and accurate POC detection of these substances. Its affordability, compact size, and excellent analytical performance make it suitable for on-site drug testing, including at borders and roadside checks, and open up new possibilities for the design and implementation of drug testing methods.
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Affiliation(s)
- Weijia Li
- State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Toxicology and Pharmacology, Beijing, 100850, China
| | | | - Dongfeng Wang
- Bioinformatics Center of AMMS, Beijing, 100850, China
| | - Jianwei Xie
- State Key Laboratory of Toxicology and Medical Countermeasures, and Laboratory of Toxicant Analysis, Institute of Toxicology and Pharmacology, Beijing, 100850, China.
| | - Shengqi Wang
- Bioinformatics Center of AMMS, Beijing, 100850, China.
| | - Zhen Rong
- Bioinformatics Center of AMMS, Beijing, 100850, China.
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3
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Lemmink IB, Straub LV, Bovee TFH, Mulder PPJ, Zuilhof H, Salentijn GI, Righetti L. Recent advances and challenges in the analysis of natural toxins. ADVANCES IN FOOD AND NUTRITION RESEARCH 2024; 110:67-144. [PMID: 38906592 DOI: 10.1016/bs.afnr.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/23/2024]
Abstract
Natural toxins (NTs) are poisonous secondary metabolites produced by living organisms developed to ward off predators. Especially low molecular weight NTs (MW<∼1 kDa), such as mycotoxins, phycotoxins, and plant toxins, are considered an important and growing food safety concern. Therefore, accurate risk assessment of food and feed for the presence of NTs is crucial. Currently, the analysis of NTs is predominantly performed with targeted high pressure liquid chromatography tandem mass spectrometry (HPLC-MS/MS) methods. Although these methods are highly sensitive and accurate, they are relatively expensive and time-consuming, while unknown or unexpected NTs will be missed. To overcome this, novel on-site screening methods and non-targeted HPLC high resolution mass spectrometry (HRMS) methods have been developed. On-site screening methods can give non-specialists the possibility for broad "scanning" of potential geographical regions of interest, while also providing sensitive and specific analysis at the point-of-need. Non-targeted chromatography-HRMS methods can detect unexpected as well as unknown NTs and their metabolites in a lab-based approach. The aim of this chapter is to provide an insight in the recent advances, challenges, and perspectives in the field of NTs analysis both from the on-site and the laboratory perspective.
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Affiliation(s)
- Ids B Lemmink
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands; Wageningen Food Safety Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Leonie V Straub
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands; Wageningen Food Safety Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Toine F H Bovee
- Wageningen Food Safety Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Patrick P J Mulder
- Wageningen Food Safety Research, Wageningen University & Research, Wageningen, The Netherlands
| | - Han Zuilhof
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands; School of Pharmaceutical Sciences and Technology, Tianjin University, Tianjin, P.R. China
| | - Gert Ij Salentijn
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands; Wageningen Food Safety Research, Wageningen University & Research, Wageningen, The Netherlands.
| | - Laura Righetti
- Laboratory of Organic Chemistry, Wageningen University & Research, Wageningen, The Netherlands; Wageningen Food Safety Research, Wageningen University & Research, Wageningen, The Netherlands.
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4
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Hu X, Zhang M, Liu Y, Li YT, Li W, Li T, Li J, Xiao X, He Q, Zhang ZY, Zhang GJ. A portable transistor immunosensor for fast identification of porcine epidemic diarrhea virus. J Nanobiotechnology 2024; 22:239. [PMID: 38735951 PMCID: PMC11089749 DOI: 10.1186/s12951-024-02440-5] [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: 01/25/2024] [Accepted: 03/25/2024] [Indexed: 05/14/2024] Open
Abstract
Widespread distribution of porcine epidemic diarrhea virus (PEDV) has led to catastrophic losses to the global pig farming industry. As a result, there is an urgent need for rapid, sensitive and accurate tests for PEDV to enable timely and effective interventions. In the present study, we develop and validate a floating gate carbon nanotubes field-effect transistor (FG CNT-FET)-based portable immunosensor for rapid identification of PEDV in a sensitive and accurate manner. To improve the affinity, a unique PEDV spike protein-specific monoclonal antibody is prepared by purification, and subsequently modified on FG CNT-FET sensor to recognize PEDV. The developed FET biosensor enables highly sensitive detection (LoD: 8.1 fg/mL and 100.14 TCID50/mL for recombinant spike proteins and PEDV, respectively), as well as satisfactory specificity. Notably, an integrated portable platform consisting of a pluggable FG CNT-FET chip and a portable device can discriminate PEDV positive from negative samples and even identify PEDV and porcine deltacoronavirus within 1 min with 100% accuracy. The portable sensing platform offers the capability to quickly, sensitively and accurately identify PEDV, which further points to a possibility of point of care (POC) applications of large-scale surveillance in pig breeding facilities.
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Affiliation(s)
- Xiao Hu
- School of Laboratory Medicine, Hubei University of Chinese Medicine, 16 Huangjia Lake West Road, Wuhan, 430065, P.R. China
- Department of Pharmacy, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, 442000, P.R. China
| | - Mengjia Zhang
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P. R. China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affairs, Wuhan, 430070, P. R. China
| | - Yiwei Liu
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Hunan, 411105, P. R. China
| | - Yu-Tao Li
- School of Laboratory Medicine, Hubei University of Chinese Medicine, 16 Huangjia Lake West Road, Wuhan, 430065, P.R. China
- Hubei Shizhen Laboratory, Wuhan, Hubei, 430065, P.R. China
| | - Wentao Li
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P. R. China
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affairs, Wuhan, 430070, P. R. China
| | - Tingxian Li
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing, 100871, P. R. China
| | - Jiahao Li
- School of Laboratory Medicine, Hubei University of Chinese Medicine, 16 Huangjia Lake West Road, Wuhan, 430065, P.R. China
| | - Xueqian Xiao
- School of Laboratory Medicine, Hubei University of Chinese Medicine, 16 Huangjia Lake West Road, Wuhan, 430065, P.R. China
| | - Qigai He
- National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, P. R. China.
- Key Laboratory of Prevention & Control for African Swine Fever and Other Major Pig Diseases, Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture and Rural Affairs, Wuhan, 430070, P. R. China.
| | - Zhi-Yong Zhang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing, 100871, P. R. China.
| | - Guo-Jun Zhang
- School of Laboratory Medicine, Hubei University of Chinese Medicine, 16 Huangjia Lake West Road, Wuhan, 430065, P.R. China.
- Hubei Shizhen Laboratory, Wuhan, Hubei, 430065, P.R. China.
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Kim TH, Park JY, Jung J, Sung JS, Kwon S, Bae HE, Shin HJ, Kang MJ, Jose J, Pyun JC. A one-step immunoassay based on switching peptides for diagnosis of porcine epidemic diarrhea virus (PEDV) using screened Fv-antibodies. J Mater Chem B 2024; 12:3751-3763. [PMID: 38532694 DOI: 10.1039/d4tb00066h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
In this study, a one-step immunoassay for porcine epidemic diarrhea virus (PEDV) based on Fv-antibodies and switching peptides was developed, and the assay results of PEDV were obtained by just mixing samples without any further reaction or washing steps. The Fv-antibodies with binding affinity to the spike protein of PEDV were screened from the Fv-antibody library using the receptor-binding domain (RBD) of the spike protein as a screening probe. Screened Fv-antibodies with binding affinities to the RBD antigen were expressed, and the binding constants (KD) were calculated to be 83-142 nM. The one-step immunoassay for the detection of PEDV was configured as a displacement immunoassay using a fluorescence-labeled switching peptide. The one-step immunoassay based on switching peptides was performed using PEDV, and the limit of detection (LOD) values for PEDV detection were estimated to be Ct = 39.7-36.4. Compared with the LOD value for a conventional lateral flow immunoassay (Ct = 33.0), the one-step immunoassay showed a remarkably improved LOD for the detection of PEDV. Finally, the interaction between the screened Fv-antibodies and the PEDV RBD was investigated using docking simulations and compared with the amino acid sequences of the receptors on host cells, such as aminopeptidase N (APN) and angiotensin-converting enzyme-2 (ACE-2).
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Affiliation(s)
- Tae-Hun Kim
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, Korea.
| | - Jae-Yeon Park
- College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, South Korea
| | - Jaeyong Jung
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, Korea.
| | - Jeong Soo Sung
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, Korea.
| | - Soonil Kwon
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, Korea.
| | - Hyung Eun Bae
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, Korea.
| | - Hyun-Jin Shin
- College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, South Korea
| | - Min-Jung Kang
- Korea Institute of Science and Technology (KIST), Seoul, Korea
| | - Joachim Jose
- Institute of Pharmaceutical and Medical Chemistry, Westfälischen Wilhelms-Universität Münster, Muenster, Germany
| | - Jae-Chul Pyun
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-Ro, Seodaemun-Gu, Seoul 03722, Korea.
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Bikkarolla SK, Venkatesan K, Revathy YR, Parameswaran S, Krishnakumar S, Dendukuri D. The Quantitative Detection of Cystatin-C in Patient Samples Using a Colorimetric Lateral Flow Immunoassay. BIOSENSORS 2024; 14:30. [PMID: 38248407 PMCID: PMC10813198 DOI: 10.3390/bios14010030] [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: 11/01/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 01/23/2024]
Abstract
A colloidal gold-based lateral flow immunoassay was developed for the rapid quantitative detection of Cystatin-C in serum and whole blood. This device has an assay time of 15 min, making it a convenient point-of-care diagnostic tool. The device has a quantification range spanning from 0.5 to 7.5 µg/mL, with a lower limit of detection at 0.18 µg/mL. To validate its accuracy, the test was compared to a standard nephelometric immunoassay, and the results exhibited a robust linear correlation with an adjusted r2 value of 0.95. Furthermore, the device demonstrates satisfactory levels of analytical performance in terms of precision, sensitivity, and interference, indicating its potential for precise Cystatin-C quantification, particularly in renal-failure patients. Notably, the Cystatin-C-LFA device also demonstrates satisfactory stability, as a 30-day accelerated stability study at 50 °C showed no change in the device performance, indicating a long shelf life for the product when stored at room temperature.
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Affiliation(s)
| | - Kavipriya Venkatesan
- Achira Labs, 66b, 13th Cross Rd, Dollar Layout, 3rd Phase, J. P. Nagar, Bengaluru 560078, India
| | | | | | | | - Dhananjaya Dendukuri
- Achira Labs, 66b, 13th Cross Rd, Dollar Layout, 3rd Phase, J. P. Nagar, Bengaluru 560078, India
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7
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Aslan MK, Ding Y, Stavrakis S, deMello AJ. Smartphone Imaging Flow Cytometry for High-Throughput Single-Cell Analysis. Anal Chem 2023; 95:14526-14532. [PMID: 37733469 DOI: 10.1021/acs.analchem.3c03213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
We present a portable imaging flow cytometer comprising a smartphone, a small-footprint optical framework, and a PDMS-based microfluidic device. Flow cytometric analysis is performed in a sheathless manner via elasto-inertial focusing with a custom-written Android program, integrating a graphical user interface (GUI) that provides a high degree of user control over image acquisition. The proposed system offers two different operational modes. First, "post-processing" mode enables particle/cell sizing at throughputs of up to 67 000 particles/s. Alternatively, "real-time" mode allows for integrated cell/particle classification with machine learning at throughputs of 100 particles/s. To showcase the efficacy of our platform, polystyrene particles are accurately enumerated within heterogeneous populations using the post-processing mode. In real-time mode, an open-source machine learning algorithm is deployed within a custom-developed Android application to classify samples containing cells of similar size but with different morphologies. The flow cytometer can extract high-resolution bright-field images with a spatial resolution <700 nm using the developed machine learning-based algorithm, achieving classification accuracies of 97% and 93% for Jurkat and EL4 cells, respectively. Our results confirm that the smartphone imaging flow cytometer (sIFC) is capable of both enumerating single particles in flow and identifying morphological features with high resolution and minimal hardware.
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Affiliation(s)
- Mahmut Kamil Aslan
- Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
| | - Yun Ding
- Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
| | - Stavros Stavrakis
- Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
| | - Andrew J deMello
- Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
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Liang Z, Lu X, Jiao X, He Y, Meng B, Xie J, Qu Z, Zhu M, Gong X, Zhao Y, Peng T, Fang X, Dai X. Traceable value of immunoglobulin G against receptor-binding domain of SARS-CoV-2 confirmation and application to point-of-care testing system development. Mikrochim Acta 2023; 190:417. [PMID: 37768390 DOI: 10.1007/s00604-023-06004-6] [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: 04/22/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
A highly purified and bioactive immunoglobulin G monoclonal antibody against receptor-binding domain of SARS-CoV-2 (RBD-IgG-MAb) has been accurately quantified by amino acid determination using isotope dilution liquid chromatography-mass spectrometry. Absolute quantification of RBD-IgG-MAb was achieved by averaging 4 amino acid certified reference materials, which allows the quantitative value (66.1 ± 5.8 μg/L) to be traced to SI unit (mol). Afterwards, the RBD-IgG-MAb was employed as control and calibration compound for the development of a point-of-care testing (POCT) system based on colloidal gold lateral flow immunoassay, which aimed to rapidly and accurately detect the level of protective RBD-IgG after vaccination. Under the detection parameters, a sigmoidal curve has been plotted between signal intensity and the logarithmic concentration for quantitative detection with the limit of detection of about 0.39 μg/mL. The relative standard deviations of intra-assay and inter-assay were lower than 2.3% and 14%, and the recoveries ranged from 87 to 100%, respectively. Fingertip blood samples from 37 volunteers after vaccination were analyzed by the POCT system; results showed that levels of RBD-IgG in 33 out of 37 samples ranged from 0.45 to 2.46 μg/mL with the average level of 0.91 μg/mL. The developed POCT system has been successfully established with the quantity-traceability RBD-IgG-MAb as control and calibration compound, and the scientific contribution of this work can be promoted to other areas.
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Affiliation(s)
- Zhanwei Liang
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Xin Lu
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Xueshima Jiao
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Yi He
- Novoprotein Scientific Incorporation, Suzhou, 215200, People's Republic of China
| | - Bo Meng
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Jie Xie
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Ziyu Qu
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Manman Zhu
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Xiaoyun Gong
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Yang Zhao
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China
| | - Tao Peng
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China.
| | - Xiang Fang
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China.
| | - Xinhua Dai
- Technology Innovation Center of Mass Spectrometry for State Market Regulation, Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, People's Republic of China.
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Nan X, Yao X, Yang L, Cui Y. Lateral flow assay of pathogenic viruses and bacteria in healthcare. Analyst 2023; 148:4573-4590. [PMID: 37655501 DOI: 10.1039/d3an00719g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Healthcare-associated pathogenic viruses and bacteria can have a serious impact on human health and have attracted widespread global attention. The lateral flow assay is a unidirectional detection based on the binding of a target analyte and a bioreceptor on the device via lateral flow. With incredible advantages over traditional chromatographic methods, such as rapid detection, ease of manufacture and cost effectiveness, these test strips are increasingly considered the ideal form for point-of-care applications. This review explores lateral flow assays for pathogenic viruses and bacteria, with a particular focus on methodologies, device components, construction methods, and applications. We anticipate that this review could provide exciting opportunities for developing new lateral flow devices for pathogens and advance related healthcare applications.
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Affiliation(s)
- Xuanxu Nan
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
| | - Xuesong Yao
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
| | - Li Yang
- Peking University First Hospital; Peking University Institute of Nephrology, Beijing 100034, P. R. China.
| | - Yue Cui
- School of Materials Science and Engineering, Peking University; First Hospital Interdisciplinary Research Center, Peking University, Beijing 100871, P.R. China.
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10
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Jiang L, Wang P, Shu Y, Jin P, Xu L, Xu C, Guo L. A colloidal gold immunoassay strip assay for cadmium detection in oilfield chemicals. Analyst 2023; 148:4166-4173. [PMID: 37522178 DOI: 10.1039/d3an01075a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Cadmium ions (Cd2+) are some of the major pollutants in oilfield chemicals. To reduce the pollution of oilfield chemicals, it is necessary to detect and control the content of Cd2+. In this study, we synthesized a highly sensitive and specific monoclonal antibody against Cd2+ with an IC50 of 1.97 ng mL-1 and no cross-reactivity. Based on this antibody, a colloidal gold immunoassay strip detection assay with an IC50 of 1 mg kg-1 and a detection range of 1.0-20 mg kg-1 in oilfield chemicals was developed. This assay could be completed in 20 min and can be used for Cd2+ on-site testing in oilfield chemicals and improve supervision efficiency in oil exploration and development.
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Affiliation(s)
- Luming Jiang
- PetroChina Research Institute of Petroleum Exploration and Development, Beijing, 10083, China
- Key Laboratory of Oilfield Chemicals, CNPC, Beijing 10083, China
| | - Peng Wang
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.
| | - Yong Shu
- PetroChina Research Institute of Petroleum Exploration and Development, Beijing, 10083, China
- Key Laboratory of Oilfield Chemicals, CNPC, Beijing 10083, China
| | - Ping Jin
- Suzhou Product Quality Supervision and Inspection Institute, Building B, No. 1368 Wuzhong Avenue, Suzhou, Jiangsu, 215000, China
| | - Liguang Xu
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.
| | - Chuanlai Xu
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.
| | - Lingling Guo
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China.
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11
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Ye L, Xu L, Kuang H, Xu X, Xu C. Colloidal gold-based immunochromatographic biosensor for quantitative detection of S100B in serum samples. NANOSCALE HORIZONS 2023; 8:1253-1261. [PMID: 37461392 DOI: 10.1039/d3nh00192j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Traumatic brain injury has become a serious public health problem. Timely detection, diagnosis and treatment of brain injury are closely related to the prognosis of patients, so identification of highly sensitive and specific biochemical markers of brain injury has important clinical value. Currently, the most studied and most promising marker is the protein S100B. In this study, a rapid quantitative biosensor for S100B was established using colloidal gold labeling and double antibody (8C10-6B8) sandwich immunochromatography. The biosensor was capable of quantifying S100B within 15 min, and showed no cross-reactivity with S100A, NSE, GFAP, or PGP9.5. The detection limit was determined to be 4.6 pg mL-1 with a linear range of 0.01-2 ng mL-1. Recovery experiments also indicated that the method had an acceptable accuracy. Moreover, the quantitative colloidal gold assay correlated well with the results of a chemiluminescence immunoassay when testing 40 clinical serum samples. Our developed colloidal gold quantitative immunochromatographic biosensor is a rapid, sensitive, specific and accurate method for the detection of S100B protein in serum, which is useful in the clinic for early diagnosis, as well as assessment of disease progression and prognosis of traumatic brain injury.
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Affiliation(s)
- Liya Ye
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China.
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, Wuxi, People's Republic of China
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12
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Jiang M, Wang A, Sun Y, Li Y, Chen Y, Zhou J, Liu H, Ding P, Qi Y, Li N, Zhang G. Development of a Gold Nanoparticle-Based Immunochromatographic Strip for Rapid Detection of Porcine Circovirus Type 2. Microbiol Spectr 2023; 11:e0195322. [PMID: 37466437 PMCID: PMC10434270 DOI: 10.1128/spectrum.01953-22] [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: 05/31/2022] [Accepted: 05/15/2023] [Indexed: 07/20/2023] Open
Abstract
Porcine circovirus type 2 (PCV2) is an important swine infectious pathogen that seriously threatens the global swine industry. PCV2 Cap protein is the only structural and the main immunogenic protein constituting the viral capsid. In this study, a gold nanoparticle-based immunochromatographic strip with high sensitivity and specificity was developed which could be used for rapid detection of PCV2 virions or Cap protein in research. The visual detection limit of the strip was 103.18 50% tissue culture infective does (TCID50)/mL for PCV2, and 2.03 μg/mL for PCV2 Cap protein. No cross-reactivity was observed with the PCV1 and PCV3 Cap proteins and other common swine pathogens such as porcine reproductive and respiratory syndrome virus, classical swine fever virus, pseudorabies virus, porcine epidemic diarrhea virus, porcine parvovirus, and swine influenza virus. The repeatability of the strip was good. The stability of the strip was perfect for 12 months in a dry state at room temperature. Visual results could be obtained within 5 min by simply inserting the strip into the diluted sample. The strip is a time-saving, labor-saving, and reliable tool for testing of PCV2 virions or Cap protein in research. The idea of this study might open a new perspective for the application of the strip. IMPORTANCE Porcine circovirus type 2 (PCV2) Cap protein is the only structural and the main immunogenic protein constituting the viral capsid. Although many methods can be used to identify PCV2 or PCV2 Cap protein in vaccine research, they usually require high workload and time. The developed strip can specifically detect PCV2 virions or Cap protein, and visual qualitative results can be obtained within 5 min by simply diluting the sample and inserting the strip into the sample. The final value of the strip is providing a simple and time-saving method for real-time monitoring of PCV2 antigen in vaccine research with reliable results, such as the different stages of PCV2 Cap protein expression and purification, as well as the different stages of PCV2 reproduction and purification.
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Affiliation(s)
- Min Jiang
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
| | - Aiping Wang
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Henan Agricultural University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
| | - Yaning Sun
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
| | - Yuan Li
- School of Life Sciences, Lanzhou University, Lanzhou, Gansu, China
| | - Yumei Chen
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
| | - Jingming Zhou
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
| | - Hongliang Liu
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
| | - Peiyang Ding
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
| | - Yanhua Qi
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
| | - Ning Li
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
| | - Gaiping Zhang
- Longhu Laboratory of Advanced Immunology, Zhengzhou, Henan, China
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan, China
- School of Advanced Agricultural Sciences, Peking University, Beijing, China
- Henan Agricultural University, Zhengzhou, Henan, China
- Henan Provincial Key Laboratory of Immunobiology, Zhengzhou, China
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13
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Wang W, Chen K, Ma X, Guo J. Artificial intelligence reinforced upconversion nanoparticle-based lateral flow assay via transfer learning. FUNDAMENTAL RESEARCH 2023; 3:544-556. [PMID: 38933552 PMCID: PMC11197505 DOI: 10.1016/j.fmre.2022.03.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 03/09/2022] [Accepted: 03/17/2022] [Indexed: 01/03/2023] Open
Abstract
The combination of upconverting nanoparticles (UCNPs) and immunochromatography has become a widely used and promising new detection technique for point-of-care testing (POCT). However, their low luminescence efficiency, non-specific adsorption, and image noise have always limited their progress toward practical applications. Recently, artificial intelligence (AI) has demonstrated powerful representational learning and generalization capabilities in computer vision. We report for the first time a combination of AI and upconversion nanoparticle-based lateral flow assays (UCNP-LFAs) for the quantitative detection of commercial internet of things (IoT) devices. This universal UCNPs quantitative detection strategy combines high accuracy, sensitivity, and applicability in the field detection environment. By using transfer learning to train AI models in a small self-built database, we not only significantly improved the accuracy and robustness of quantitative detection, but also efficiently solved the actual problems of data scarcity and low computing power of POCT equipment. Then, the trained AI model was deployed in IoT devices, whereby the detection process does not require detailed data preprocessing to achieve real-time inference of quantitative results. We validated the quantitative detection of two detectors using eight transfer learning models on a small dataset. The AI quickly provided ultra-high accuracy prediction results (some models could reach 100% accuracy) even when strong noise was added. Simultaneously, the high flexibility of this strategy promises to be a general quantitative detection method for optical biosensors. We believe that this strategy and device have a scientific significance in revolutionizing the existing POCT technology landscape and providing excellent commercial value in the in vitro diagnostics (IVD) industry.
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Affiliation(s)
- Wei Wang
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Kuo Chen
- School of Software Engineering, Chongqing University of Posts and Telecommunications,Chongqing 400065, China
| | - Xing Ma
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Jinhong Guo
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
- The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
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14
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Punnoy P, Siripongpreda T, Pisitkun T, Rodthongkum N, Potiyaraj P. Alternative platform for COVID-19 diagnosis based on AuNP-modified lab-on-paper. Analyst 2023. [PMID: 37194362 DOI: 10.1039/d3an00595j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
COVID-19 has caused global health problems, and so rapid diagnosis is crucial to slow spread of the disease. Herein, a novel lab-on-paper screening method for SARS-CoV-2 Omicron BA.2 variant was developed using a gold nanoparticle-based colorimetric biosensor along with sensitive detection of SARS-CoV-2 antigen using laser desorption ionization-mass spectrometry (LDI-MS). As a result of antigen-antibody interaction, in the presence of SARS-CoV-2 antigen the gold nanoparticles undergo aggregation and change color from red to light purple, allowing for rapid determination of SARS-CoV-2 antigen with the naked eye. Furthermore, the lab-on-paper method can be directly applied as a substrate for sensitive quantitation of SARS-CoV-2 antigen in saliva using LDI-MS without the use of a conventional organic matrix and sample preparation. LDI-MS offers early diagnosis with high sensitivity, rapidity without sample preparation and lower cost per test compared with reverse transcriptase-PCR, which is crucial for preventing mortality in patients with underlying conditions. This method showed linearity over 0.01-1 μg mL-1 covering the cut-off value of 0.048 μg mL-1 for COVID-19 detection in human saliva. Moreover, a colorimetric sensor for urea was also fabricated in-parallel, for prediction of COVID-19 severity in patients with chronic kidney disease. The color change upon increasing urea concentration directly reflected kidney damage, which is related to increasing risk of mortality among patients with COVID-19. Hence, this platform might be a potential device for non-invasive diagnosis of SARS-CoV-2 Omicron BA.2 variant, which is the variant of most concern because it is transmitted more rapidly than the original SARS-CoV-2 virus and the Delta variant.
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Affiliation(s)
- Pornchanok Punnoy
- Department of Materials Science, Faculty of Science, Chulalongkorn University, Soi Chula12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand.
| | - Tatiya Siripongpreda
- Nanoscience and Technology Interdisciplinary Program, Chulalongkorn University, Phayathai Road, Wangmai, Patumwan, Bangkok 10330, Thailand
| | - Trairak Pisitkun
- Chulalongkorn University Systems Biology, Faculty of Medicine, Chulalongkorn University, Patumwan, Bangkok 10330, Thailand
| | - Nadnudda Rodthongkum
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
- Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Thailand
| | - Pranut Potiyaraj
- Department of Materials Science, Faculty of Science, Chulalongkorn University, Soi Chula12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand.
- Metallurgy and Materials Science Research Institute, Chulalongkorn University, Soi Chula12, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
- Center of Excellence in Responsive Wearable Materials, Chulalongkorn University, Thailand
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15
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Digital Platform for Automatic Qualitative and Quantitative Reading of a Cryptococcal Antigen Point-of-Care Assay Leveraging Smartphones and Artificial Intelligence. J Fungi (Basel) 2023; 9:jof9020217. [PMID: 36836331 PMCID: PMC9961444 DOI: 10.3390/jof9020217] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/19/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023] Open
Abstract
Cryptococcosis is a fungal infection that causes serious illness, particularly in immunocompromised individuals such as people living with HIV. Point of care tests (POCT) can help identify and diagnose patients with several advantages including rapid results and ease of use. The cryptococcal antigen (CrAg) lateral flow assay (LFA) has demonstrated excellent performance in diagnosing cryptococcosis, and it is particularly useful in resource-limited settings where laboratory-based tests may not be readily available. The use of artificial intelligence (AI) for the interpretation of rapid diagnostic tests can improve the accuracy and speed of test results, as well as reduce the cost and workload of healthcare professionals, reducing subjectivity associated with its interpretation. In this work, we analyze a smartphone-based digital system assisted by AI to automatically interpret CrAg LFA as well as to estimate the antigen concentration in the strip. The system showed excellent performance for predicting LFA qualitative interpretation with an area under the receiver operating characteristic curve of 0.997. On the other hand, its potential to predict antigen concentration based solely on a photograph of the LFA has also been demonstrated, finding a strong correlation between band intensity and antigen concentration, with a Pearson correlation coefficient of 0.953. The system, which is connected to a cloud web platform, allows for case identification, quality control, and real-time monitoring.
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16
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Patil AA, Kaushik P, Jain RD, Dandekar PP. Assessment of Urinary Biomarkers for Infectious Diseases Using Lateral Flow Assays: A Comprehensive Overview. ACS Infect Dis 2023; 9:9-22. [PMID: 36512677 DOI: 10.1021/acsinfecdis.2c00449] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Screening of biomarkers is a powerful approach for providing a holistic view of the disease spectrum and facilitating the diagnosis and prognosis of the state of infectious diseases. Unaffected by the homeostasis mechanism in the human body, urine accommodates systemic changes and reflects the pathophysiological condition of an individual. Easy availability in large volumes and non-invasive sample collection have rendered urine an ideal source of biomarkers for various diseases. Infectious diseases may be communicable, and therefore early diagnosis and treatment are of immense importance. Current diagnostic approaches preclude the timely identification of clinical conditions and also lack portability. Point-of-care (POC) testing solutions have gained attention as alternative diagnostic measures due to their ability to provide rapid and on-site results. Lateral flow assays (LFAs) are the mainstay in POC device development and have attracted interest owing to their potential to provide instantaneous results in resource-limited settings. The discovery and optimization of a definitive biomarker can render POC testing an excellent platform, thus impacting unwarranted antibiotic administration and preventing the spread of infectious diseases. This Review summarizes the importance of urine as an emerging biological fluid in infectious disease research and diagnosis in clinical settings. We review the academic research related to LFAs. Further, we also describe commercial POC devices based on the identification of urinary biomarkers as diagnostic targets for infectious diseases. We also discuss the future use of LFAs in developing more effective POC tests for urinary biomarkers of various infections.
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Affiliation(s)
- Ashwini A Patil
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai, Maharashtra 400019, India
| | - Preeti Kaushik
- Department of Biological Science and Biotechnology, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai, Maharashtra 400019, India
| | - Ratnesh D Jain
- Department of Biological Science and Biotechnology, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai, Maharashtra 400019, India
| | - Prajakta P Dandekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai, Maharashtra 400019, India
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17
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Sanchez T, Mavragani A, Álamo E, Pérez-Panizo N, Mousa A, Dacal E, Lin L, Vladimirov A, Cuadrado D, Mateos-Nozal J, Galán JC, Romero-Hernandez B, Cantón R, Luengo-Oroz M, Rodriguez-Dominguez M. A Smartphone-Based Platform Assisted by Artificial Intelligence for Reading and Reporting Rapid Diagnostic Tests: Evaluation Study in SARS-CoV-2 Lateral Flow Immunoassays. JMIR Public Health Surveill 2022; 8:e38533. [PMID: 36265136 PMCID: PMC9840096 DOI: 10.2196/38533] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 09/16/2022] [Accepted: 10/13/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Rapid diagnostic tests (RDTs) are being widely used to manage COVID-19 pandemic. However, many results remain unreported or unconfirmed, altering a correct epidemiological surveillance. OBJECTIVE Our aim was to evaluate an artificial intelligence-based smartphone app, connected to a cloud web platform, to automatically and objectively read RDT results and assess its impact on COVID-19 pandemic management. METHODS Overall, 252 human sera were used to inoculate a total of 1165 RDTs for training and validation purposes. We then conducted two field studies to assess the performance on real-world scenarios by testing 172 antibody RDTs at two nursing homes and 96 antigen RDTs at one hospital emergency department. RESULTS Field studies demonstrated high levels of sensitivity (100%) and specificity (94.4%, CI 92.8%-96.1%) for reading IgG band of COVID-19 antibody RDTs compared to visual readings from health workers. Sensitivity of detecting IgM test bands was 100%, and specificity was 95.8% (CI 94.3%-97.3%). All COVID-19 antigen RDTs were correctly read by the app. CONCLUSIONS The proposed reading system is automatic, reducing variability and uncertainty associated with RDTs interpretation and can be used to read different RDT brands. The web platform serves as a real-time epidemiological tracking tool and facilitates reporting of positive RDTs to relevant health authorities.
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Affiliation(s)
| | | | | | - Nuria Pérez-Panizo
- Servicio de Geriatría, Hospital Universitario Ramon y Cajal, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | | | | | - Lin Lin
- Spotlab, Madrid, Spain.,Biomedical Image Technologies, ETSI Telecomunicación, Universidad Politécnica de Madrid, Madrid, Spain
| | | | | | - Jesús Mateos-Nozal
- Servicio de Geriatría, Hospital Universitario Ramon y Cajal, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Juan Carlos Galán
- Servicio de Microbiología, Hospital Universitario Ramon y Cajal, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.,CIBER en Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - Beatriz Romero-Hernandez
- Servicio de Microbiología, Hospital Universitario Ramon y Cajal, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.,CIBER en Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
| | - Rafael Cantón
- Servicio de Microbiología, Hospital Universitario Ramon y Cajal, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.,CIBER en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Mario Rodriguez-Dominguez
- Servicio de Microbiología, Hospital Universitario Ramon y Cajal, Madrid, Spain.,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain.,CIBER en Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain
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18
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Ross G, Zhao Y, Bosman A, Geballa-Koukoula A, Zhou H, Elliott C, Nielen M, Rafferty K, Salentijn G. Data handling and ethics of emerging smartphone-based (bio)sensors – Part 1: Best practices and current implementation. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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19
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Ghasemi F, Fahimi-Kashani N, Bigdeli A, Alshatteri AH, Abbasi-Moayed S, Al-Jaf SH, Merry MY, Omer KM, Hormozi-Nezhad MR. Paper-based optical nanosensors – A review. Anal Chim Acta 2022; 1238:340640. [DOI: 10.1016/j.aca.2022.340640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
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20
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Garrido E, Climent E, Marcos MD, Sancenón F, Rurack K, Martínez-Máñez R. Dualplex lateral flow assay for simultaneous scopolamine and "cannibal drug" detection based on receptor-gated mesoporous nanoparticles. NANOSCALE 2022; 14:13505-13513. [PMID: 36102017 DOI: 10.1039/d2nr03325a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We report herein the design of a strip-based rapid test utilizing bio-inspired hybrid nanomaterials for the in situ and at site detection of the drug scopolamine (SCP) using a smartphone for readout, allowing SCP identification in diluted saliva down to 40 nM in less than 15 min. For this purpose, we prepared a nanosensor based on mesoporous silica nanoparticles loaded with a fluorescent reporter (rhodamine B) and functionalized with bethanechol, a potent agonist of recombinant human muscarinic acetylcholine receptor M2 (M2-AChR). M2-AChR interaction with the anchored bethanechol derivative leads to capping of the pores. The sensing mechanism relies on binding of SCP to M2-AChR resulting in pore opening and delivery of the entrapped rhodamine B reporter. Moreover, the material was incorporated into strips for lateral-flow assays coupled to smartphone readout, giving fast response time, good selectivity, and exceptional sensitivity. In an attempt to a mobile analytical test system for law enforcement services, we have also developed a dualplex lateral flow assay for SCP and 3,4-methylenedioxypyrovalerone (MDPV) also known as the so-called "cannibal drug".
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Affiliation(s)
- Eva Garrido
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0 28029 Madrid
- Unidad Mixta de Investigación en Nanomedicina y Sensores. Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Estela Climent
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM) Richard-Willstätter-Str. 11, 12489, Berlin, Germany.
| | - M Dolores Marcos
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0 28029 Madrid
- Unidad Mixta de Investigación en Nanomedicina y Sensores. Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0 28029 Madrid
- Unidad Mixta de Investigación en Nanomedicina y Sensores. Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain
| | - Knut Rurack
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM) Richard-Willstätter-Str. 11, 12489, Berlin, Germany.
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Av. Monforte de Lemos, 3-5, Pabellón 11, Planta 0 28029 Madrid
- Unidad Mixta de Investigación en Nanomedicina y Sensores. Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe, Valencia, Spain
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21
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Park J. Lateral Flow Immunoassay Reader Technologies for Quantitative Point-of-Care Testing. SENSORS (BASEL, SWITZERLAND) 2022; 22:7398. [PMID: 36236497 PMCID: PMC9571991 DOI: 10.3390/s22197398] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/26/2022] [Accepted: 09/26/2022] [Indexed: 06/01/2023]
Abstract
Due to the recent pandemic caused by coronavirus disease 2019 (COVID-19), the lateral flow immunoassay used for its rapid antigen test is more popular than ever before. However, the history of the lateral flow immunoassay is about 60 years old, and its original purpose of use, such as a COVID-19 rapid antigen test or a pregnancy test, was the qualitative detection of a target analyte. Recently, the demand for quantitative analysis of lateral flow immunoassays is increasing in various fields. Lateral flow immunoassays for quantitative detection using various materials and sensor technologies are being introduced, and readers for analyzing them are being developed. Quantitative analysis readers are highly anticipated for their future development in line with technological advancements such as optical, magnetic field, photothermal, and electrochemical sensors and trends such as weight reduction, miniaturization, and cost reduction of systems. In addition, the sensing, processing, and communication functions of portable personal devices such as smartphones can be used as tools for the quantitative analysis of lateral flow immunoassays. As a result, lateral flow immunoassays can efficiently achieve the goal of rapid diagnosis by point-of-care testing. Readers used for the quantification of lateral flow immunoassays were classified according to the adopted sensor technology, and the research trends in each were reviewed in this paper. The development of a quantitative analysis system was often carried out in the assay aspect, so not only the readers but also the assay development cases were reviewed if necessary. In addition, systems for quantitative analysis of COVID-19, which have recently been gaining importance, were introduced as a separate section.
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Affiliation(s)
- Jongwon Park
- Department of Biomedical Engineering, Kyungil University, Gyeongsan 38428, Korea
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22
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Olech M. Current State of Molecular and Serological Methods for Detection of Porcine Epidemic Diarrhea Virus. Pathogens 2022; 11:pathogens11101074. [PMID: 36297131 PMCID: PMC9612268 DOI: 10.3390/pathogens11101074] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/19/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV), a member of the Coronaviridae family, is the etiological agent of an acute and devastating enteric disease that causes moderate-to-high mortality in suckling piglets. The accurate and early detection of PEDV infection is essential for the prevention and control of the spread of the disease. Many molecular assays have been developed for the detection of PEDV, including reverse-transcription polymerase chain reaction (RT-PCR), real-time RT-PCR (qRT-PCR) and loop-mediated isothermal amplification assays. Additionally, several serological methods have been developed and are widely used for the detection of antibodies against PEDV. Some of them, such as the immunochromatography assay, can generate results very quickly and in field conditions. Molecular assays detect viral RNA in clinical samples rapidly, and with high sensitivity and specificity. Serological assays can determine prior immune exposure to PEDV, can be used to monitor the efficacy of vaccination strategies and may help to predict the duration of immunity in piglets. However, they are less sensitive than nucleic acid-based detection methods. Sanger and next-generation sequencing (NGS) allow the analysis of PEDV cDNA or RNA sequences, and thus, provide highly specific results. Furthermore, NGS based on nonspecific DNA cleavage in clustered regularly interspaced short palindromic repeats (CRISPR)–Cas systems promise major advances in the diagnosis of PEDV infection. The objective of this paper was to summarize the current serological and molecular PEDV assays, highlight their diagnostic performance and emphasize the advantages and drawbacks of the application of individual tests.
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Affiliation(s)
- Monika Olech
- Department of Pathology, National Veterinary Research Institute, 24-100 Puławy, Poland
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Victorious A, Zhang Z, Chang D, Maclachlan R, Pandey R, Xia J, Gu J, Hoare T, Soleymani L, Li Y. A DNA Barcode‐Based Aptasensor Enables Rapid Testing of Porcine Epidemic Diarrhea Viruses in Swine Saliva Using Electrochemical Readout. Angew Chem Int Ed Engl 2022; 61:e202204252. [DOI: 10.1002/anie.202204252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Amanda Victorious
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
| | - Zijie Zhang
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Dingran Chang
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | | | - Richa Pandey
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
| | - Jianrun Xia
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Jimmy Gu
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
| | - Todd Hoare
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Chemical Engineering McMaster University Canada
| | - Leyla Soleymani
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Engineering Physics McMaster University Canada
- Michael G. DeGroote Institute for Infectious Disease Research McMaster University Canada
| | - Yingfu Li
- School of Biomedical Engineering McMaster University 1280 Main Street West, Hamilton Ontario L8S 4K1 Canada
- Department of Biochemistry and Biomedical Sciences McMaster University Canada
- Michael G. DeGroote Institute for Infectious Disease Research McMaster University Canada
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24
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Jiao F, Cao F, Gao Y, Shuang F, Dong D. A biosensor based on a thermal camera using infrared radiance as the signal probe. Talanta 2022; 246:123453. [DOI: 10.1016/j.talanta.2022.123453] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 12/13/2022]
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25
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Manessis G, Gelasakis AI, Bossis I. Point-of-Care Diagnostics for Farm Animal Diseases: From Biosensors to Integrated Lab-on-Chip Devices. BIOSENSORS 2022; 12:455. [PMID: 35884258 PMCID: PMC9312888 DOI: 10.3390/bios12070455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 02/06/2023]
Abstract
Zoonoses and animal diseases threaten human health and livestock biosecurity and productivity. Currently, laboratory confirmation of animal disease outbreaks requires centralized laboratories and trained personnel; it is expensive and time-consuming, and it often does not coincide with the onset or progress of diseases. Point-of-care (POC) diagnostics are rapid, simple, and cost-effective devices and tests, that can be directly applied on field for the detection of animal pathogens. The development of POC diagnostics for use in human medicine has displayed remarkable progress. Nevertheless, animal POC testing has not yet unfolded its full potential. POC devices and tests for animal diseases face many challenges, such as insufficient validation, simplicity, and portability. Emerging technologies and advanced materials are expected to overcome some of these challenges and could popularize animal POC testing. This review aims to: (i) present the main concepts and formats of POC devices and tests, such as lateral flow assays and lab-on-chip devices; (ii) summarize the mode of operation and recent advances in biosensor and POC devices for the detection of farm animal diseases; (iii) present some of the regulatory aspects of POC commercialization in the EU, USA, and Japan; and (iv) summarize the challenges and future perspectives of animal POC testing.
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Affiliation(s)
- Georgios Manessis
- Laboratory of Anatomy and Physiology of Farm Animals, Department of Animal Science, Agricultural University of Athens (AUA), Iera Odos 75 Str., 11855 Athens, Greece; (G.M.); (A.I.G.)
| | - Athanasios I. Gelasakis
- Laboratory of Anatomy and Physiology of Farm Animals, Department of Animal Science, Agricultural University of Athens (AUA), Iera Odos 75 Str., 11855 Athens, Greece; (G.M.); (A.I.G.)
| | - Ioannis Bossis
- Laboratory of Animal Husbandry, Department of Animal Production, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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26
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Victorious A, Zhang Z, Chang D, Malachlan R, Pandey R, Xia J, Gu J, Hoare T, Soleymani L, Li Y. A DNA Barcode‐Based Aptasensor Enables Rapid Testing of Porcine Epidemic Diarrhea Viruses in Swine Saliva Using Electrochemical Readout. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Zijie Zhang
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | - Dingran Chang
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | | | | | - Jianrun Xia
- McMaster University Biochemistry and Biomedical Sciences CANADA
| | - Jimmy Gu
- McMurry University Biochemistry and Biomedical Sciences CANADA
| | - Todd Hoare
- McMurry University Chemical Engineering CANADA
| | - Leyla Soleymani
- McMastser University Engineering Physics 1280 Main Street W. L8S 4M1 Hamilton CANADA
| | - Yingfu Li
- McMaster University Biochemistry and Biomedical Sciences CANADA
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27
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Rosenbohm JM, Klapperich CM, Cabodi M. Tunable Duplex Semiquantitative Detection of Nucleic Acids with a Visual Lateral Flow Immunoassay Readout. Anal Chem 2022; 94:3956-3962. [PMID: 35199994 PMCID: PMC10017168 DOI: 10.1021/acs.analchem.1c05039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Quantitative nucleic acid amplification testing (NAAT) is a key enabling technology for infectious disease management, especially in instances where viral load informs therapeutic decisions. Inadequate access to quantitative NAATs remains a challenge to the successful deployment of antiretroviral therapy (ART) regimens for patients with chronic hepatitis B virus (CHB) in low resourced settings (LRS). Current field-deployable NAATs are generally qualitative (yes/no) rather than quantitative in nature, making them ill-suited for viral load monitoring programs for CHB patients. Here, we report the development of a proof-of-concept molecular diagnostic test, the semiquantitative ligation and amplification (SQLA) assay, which achieves semiquantitative detection of input target DNA at two independently tunable detection thresholds with a simple visual readout. The SQLA assay utilizes a duplex competitive thermophilic helicase-dependent amplification (tHDA) chemistry and can be performed in under 1 h.
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Affiliation(s)
- Justin M Rosenbohm
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Catherine M Klapperich
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Mario Cabodi
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
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28
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Scheeline A. Selfie Spectrometry: Why Tablets, Laptops, and Cell Phones Have Not Taken Over Visible Spectrometry. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Wang Z, Zhao J, Xu X, Guo L, Xu L, Sun M, Hu S, Kuang H, Xu C, Li A. An Overview for the Nanoparticles-Based Quantitative Lateral Flow Assay. SMALL METHODS 2022; 6:e2101143. [PMID: 35041285 DOI: 10.1002/smtd.202101143] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/27/2021] [Indexed: 06/14/2023]
Abstract
The development of the lateral flow assay (LFA) has received much attention in both academia and industry because of their broad applications to food safety, environmental monitoring, clinical diagnosis, and so forth. The user friendliness, low cost, and easy operation are the most attractive advantages of the LFA. In recent years, quantitative detection has become another focus of LFA development. Here, the most recent studies of quantitative LFAs are reviewed. First, the principles and corresponding formats of quantitative LFAs are introduced. In the biomaterial and nanomaterial sections, the detection, capture, and signal amplification biomolecules and the optical, fluorescent, luminescent, and magnetic labels used in LFAs are described. The invention of dedicated strip readers has drawn further interest in exploiting the better performance of LFAs. Therefore, next, the development of dedicated reader devices is described and the usefulness and specifications of these devices for LFAs are discussed. Finally, the applications of LFAs in the detection of metal ions, biotoxins, pathogenic microorganisms, veterinary drugs, and pesticides in the fields of food safety and environmental health and the detection of nucleic acids, biomarkers, and viruses in clinical analyses are summarized.
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Affiliation(s)
- Zhongxing Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Jing Zhao
- Department of Radiology, Affiliated Hospital, Jiangnan University, No. 1000, Hefeng Road, Wuxi, Jiangsu, 214122, China
| | - Xinxin Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Lingling Guo
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Liguang Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Maozhong Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Shudong Hu
- Department of Radiology, Affiliated Hospital, Jiangnan University, No. 1000, Hefeng Road, Wuxi, Jiangsu, 214122, China
| | - Hua Kuang
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Chuanlai Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
- International Joint Research Laboratory for Biointerface and Biodetection, and School of Food Science and Technology, Jiangnan University, No. 1800, Lihu Road, Wuxi, Jiangsu, 214122, P. R. China
| | - Aike Li
- Academy of National Food and Strategic Reserves Administration, No. 11, Baiwanzhuang Street, Beijing, 100037, P. R. China
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30
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Bao H, Yuan M, Xiao C, Liu D, Lai W. Development of a signal-enhanced LFIA based on tyramine-induced AuNPs aggregation for sensitive detection of danofloxacin. Food Chem 2021; 375:131875. [PMID: 34959139 DOI: 10.1016/j.foodchem.2021.131875] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/02/2021] [Accepted: 12/14/2021] [Indexed: 12/16/2022]
Abstract
A signal-enhanced LFIA based on tyramine (TYR)-induced AuNPs aggregation has been developed for the sensitive detection of danofloxacin (DAN). In the model, the hydroxyl radical produced by HRP catalyzing H2O2 can trigger the TYR-AuNPs to aggregate on the T or C line for enhancing the detection signal. The linear range of TYR-AuNPs LFIA was 0.25-5 ng mL-1 with the limit of detection (LOD) of 0.032 ng mL-1, and the LOD was 8-fold lower than that of the traditional AuNPs LFIA (0.26 ng mL-1). The TYR-AuNPs LFIA could be used with the naked eyes to qualitatively detect DAN with a cut-off limit of 2.5 ng mL-1, which was 4-fold lower than that of the traditional AuNPs LFIA (10 ng mL-1). The recoveries of TYR-AuNPs LFIA were 86.04-105.14% and 92.41-110.19%, with the coefficient of variation of 1.71-2.05% and 4.42-5.89% in chicken and pork, respectively.
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Affiliation(s)
- Huanhuan Bao
- State Key Laboratory of Food Science and Technology, Nanchang University 235, East Nanjing Road, Nanchang 330047, China
| | - Meifang Yuan
- Jiangxi Institute for Food Control, Nanchang 330001, China
| | - Chengui Xiao
- Food Inspection and Quarantine Technology Center of Shenzhen Customs, Shenzhen Academy of Inspection and Quarantine, Shenzhen, Guangdong 518045, China
| | - Daofeng Liu
- Jiangxi Province Centre for Disease Control and Prevention, 555, East Beijing Road, Nanchang 330029, China
| | - Weihua Lai
- State Key Laboratory of Food Science and Technology, Nanchang University 235, East Nanjing Road, Nanchang 330047, China.
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31
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Yuan J, Shen J, Chen M, Lou Z, Zhang S, Song Z, Li W, Zhou X. Artificial intelligence-assisted enumeration of ultra-small viruses with dual dark-field plasmon resonance probes. Biosens Bioelectron 2021; 199:113893. [PMID: 34923308 DOI: 10.1016/j.bios.2021.113893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 12/11/2021] [Accepted: 12/13/2021] [Indexed: 11/19/2022]
Abstract
Direct visual enumeration of viruses under dark-field microscope (DFM) using plasmon resonance probes (PRPs) is fast and convenient; however, it is greatly limited in the assay of real samples because of its inability to accurately identify false positives owing to non-specific adsorption. In this study, we propose an artificial intelligence (AI)-assisted DFM enumeration strategy for the accurate assay of Enterovirus A71 (an ultra-small human virus) using two PRPs; a 40 nm silver nanoparticle probe (SNP) that appears bright blue under DFM, and a 120 nm gold nanorod probe (GNP) that appears red under DFM. The capture chip was prepared by immobilizing the SNPs with antibodies on the glass to capture the target virus and to form dichromatic sandwich structures with the GNPs, followed by imaging under a dark field (DF). Subsequently, the DF images of the capture chip were subjected to a two-step screening: first, using image processing, and thereafter using the AI algorithm screening to eliminate false positive results and background noise. The results revealed that the data from the AI-assisted dual PRPs assay were highly consistent with those of quantitative PCR (qPCR), and that the sensitivity with a minimum detectable concentration of 3 copies/μL was 5 times higher than that of qPCR. The entire analysis was completed within 45 min. Therefore, our AI-assisted virus enumeration strategy with two DF PRPs holds great potential for ultra-sensitive and accurate quantification of viruses in real samples.
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Affiliation(s)
- Jiasheng Yuan
- College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Coinnovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, 225009, China; Institute of Pediatrics, Children's Hospital of Fudan University, Fudan University, Shanghai, 201102, China
| | - Jiayin Shen
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, 201508, China
| | - Mingyu Chen
- College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Zhichao Lou
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Shuye Zhang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, 201508, China
| | - Zhigang Song
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, 201508, China
| | - Weiwei Li
- Institute of Pediatrics, Children's Hospital of Fudan University, Fudan University, Shanghai, 201102, China.
| | - Xin Zhou
- College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Coinnovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, 225009, China.
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32
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A Smartphone-Based Detection Method of Colloidal Gold Immunochromatographic Strip. PHOTONICS 2021. [DOI: 10.3390/photonics8120576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The outbreak of the new coronavirus (SARS-CoV-2) infection has become a global public health crisis. Antigen detection strips (colloidal gold) can be widely used in novel coronavirus clinical screening and can even be extended to home self-testing, which provides a practical and effective way for people to obtain health status information away from the crowd. In this paper, a colloidal gold detection system without complex devices is proposed, which is based on smartphone usage along with a mobile-phone software embedded with normalization algorithms and a special designed background paper. The basic principle of the device relies on image processing. First, the data of the green channel of the image captured by a smartphone are selected to be processed. Second, the calibration curves are established using standard black and white card, and the calibration values under different detection environments are obtained by calibration curves. Finally, to verify the validity of the proposed method, various standard solutions with different concentrations are tested. Results show that this method can eliminate the influence of different environments on the test results, the test results in different detection environments have good stability and the variation coefficients are less than 5%. It fully proves that the detection system designed in this paper can detect the result of colloidal gold immunochromatographic strip in time, conveniently and accurately in different environments.
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33
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He H, Nie R, Lu P, Peng X, Li X, Chen Y. Low-Cost and Convenient Microchannel Resistance Biosensing Platform by Directly Translating Biorecognition into a Current Signal. Anal Chem 2021; 93:15049-15057. [PMID: 34726904 DOI: 10.1021/acs.analchem.1c03006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report a low-cost and convenient microchannel resistance (MCR) biosensing platform that uses current signal to report biorecognition. The biorecognition behavior between targets and biometric molecules (antigens, antibodies, or oligonucleotides) immobilized on magnetic beads and polystyrene (PS) microspheres induces a quantitative change in the unreacted PS microspheres. After magnetic separation, the unreacted PS microsphere solution is passed through the microchannel, leading to an obvious blocking effect, resulting in an increase in resistance, which can in turn be measured by monitoring the electric current. Thus, the biorecognition is directly converted into a detectable current signal without any bulky instruments or additional chemical reactions. The MCR biosensing platform is cost-effective and user-friendly with high accuracy. It can be an appropriate analysis technique for point-of-care testing in resource-poor settings.
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Affiliation(s)
- Huiyu He
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.,Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan 430070, China
| | - Rongbin Nie
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.,Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng Lu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xuewen Peng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaohan Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yiping Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.,Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan 430070, China.,Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
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34
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Ozer T, Henry CS. Paper-based analytical devices for virus detection: Recent strategies for current and future pandemics. Trends Analyt Chem 2021; 144:116424. [PMID: 34462612 PMCID: PMC8387141 DOI: 10.1016/j.trac.2021.116424] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The importance of user-friendly, inexpensive, sensitive, and selective detection of viruses has been highlighted again due to the recent Coronavirus disease 2019 (COVID-19) pandemic. Among the analytical tools, paper-based devices (PADs) have become a leading alternative for point-of-care (POC) testing. In this review, we discuss the recent development strategies and applications in nucleic acid-based, antibody/antigen-based and other affinity-based PADs using optical and electrochemical detection methods for sensing viruses. In addition, advantages and drawbacks of presented PADs are identified. Current state and insights towards future perspectives are presented regarding developing POC diagnosis platform for COVID-19. This review considers state-of-the-art technologies for further development and improvement in PADs performance for virus detection.
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Affiliation(s)
- Tugba Ozer
- Yildiz Technical University, Faculty of Chemical-Metallurgical Engineering, Department of Bioengineering, 34220, Istanbul, Turkey
| | - Charles S Henry
- Colorado State University, Department of Chemistry, Fort Collins, CO, 80523, USA
- Colorado State University, School of Biomedical Engineering, Fort Collins, CO, 80523, USA
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35
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Lin SW, Shen CF, Liu CC, Cheng CM. A Paper-Based IL-6 Test Strip Coupled With a Spectrum-Based Optical Reader for Differentiating Influenza Severity in Children. Front Bioeng Biotechnol 2021; 9:752681. [PMID: 34692664 PMCID: PMC8527092 DOI: 10.3389/fbioe.2021.752681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/21/2021] [Indexed: 01/08/2023] Open
Abstract
Influenza virus infection is a major worldwide public health problem. Influenza virus infections are associated with a high hospitalization rate in children between the ages of 5 and 14. The predominant reason for poor influenza prognosis is the lack of any effective means for early diagnosis. Early diagnosis of severe illness is critical to improving patient outcome, and could be especially useful in areas with limited medical resources. Accurate, inexpensive, and easy-to-use diagnostic tools could improve early diagnosis and patient outcome, and reduce overall healthcare costs. We developed an interleukin-6 paper-based test strip that used colloidal gold-conjugated antibodies to detect human interleukin-6 protein. These complexes were captured on a paper-based test strip patterned with perpendicular T lines that were pre-coated with anti-human interleukin-6 antibodies. Applied serum samples interacted with these antibodies and presented as colored bands that could be read using a spectrum-based optical reader. The full-spectrum of the reflected light interleukin-6 protein signal could be obtained from the spectral optics module, and the standard could be used to quantitatively analyze interleukin 6 level in serum. We retrospectively evaluated 10 children (23 serum samples) with severe influenza virus infections, 26 children (26 serum samples) with mild influenza virus infections, and 10 healthy children (10 serum samples). Our system, the combined use of a paper-based test strip and a spectrum-based optical reader, provided both qualitative and quantitative information. When used with the optical reader, the detection limit was improved from a qualitative, naked-eye level of 400 pg/ml to a quantitative, optical reader level of 76.85 pg/ml. After monitoring serum interleukin-6 level via our system, we found a high correlation between our system results and those obtainable using a conventional sandwich enzyme-linked immunosorbent assay method (Rho = 0.706, p < 0.001). The sensitivity and specificity for differentiating between severe and mild influenza using our combined method (test strip coupled with optical reader) were 78.3 and 50.0%, respectively. When interleukin-6 was combined with serum C-reaction protein, the sensitivity and specificity were 85.7 and 95.5%, and the receiver operating characteristic area-under-the-curve was quite high (AUC = 0.911, p < 0.001). The potential advantages of our system, i.e., a paper-based test strip coupled with a spectrum-based optical reader, are as follows: 1) simple user operation; 2) rapid turnaround times–within 20 min; 3) high detection performance; and, 4) low-cost fabrication.
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Affiliation(s)
- Sheng-Wen Lin
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Ching-Fen Shen
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Chuan Liu
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Center of Infectious Disease and Signaling Research, National Cheng Kung University, Tainan, Taiwan
| | - Chao-Min Cheng
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
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Liu X, Guo J, Li Y, Wang B, Yang S, Chen W, Wu X, Guo J, Ma X. SERS substrate fabrication for biochemical sensing: towards point-of-care diagnostics. J Mater Chem B 2021; 9:8378-8388. [PMID: 34505606 DOI: 10.1039/d1tb01299a] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Rapid technology development and economic growth have brought attention to public health issues, such as food safety and environmental pollution, which creates an ever-increasing demand for fast and portable sensing technologies. Portable surface-enhanced Raman spectroscopy (SERS) capable of various analyte detection with low concentration in a convenient manner shows advantages in sensing technology including enhanced diagnostic precision, improved diagnostic efficiency, reduced diagnostic cost, and alleviation of patient pain, which emerges as a promising candidate for point-of-care testing (POCT). SERS detection technology based on different nanostructures made of noble metal-based nanomaterials can increase the sensitivity of Raman scattering by 6-8 orders of magnitude, making Raman based trace detection possible, and greatly promote the application scenarios of portable Raman spectrometers. In this perspective, we provide an overview of fundamental knowledge about the SERS mechanism including chemical and electromagnetic field enhancement mechanisms, the design and fabrication of SERS substrates based on materials, progress of using SERS for POCT in biochemical sensing and its clinical applications. Furthermore, we present the prospective of developing new nanomaterials with different functionalities for advanced SERS substrates, as well as the future advancement of biomedical sensing and clinical potential of SERS technology.
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Affiliation(s)
- Xiaojia Liu
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Shenzhen Bay Laboratory, No. 9 Duxue Road, Shenzhen 518055, China
| | - Jiuchuan Guo
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China.
| | - Yang Li
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Bo Wang
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Shikun Yang
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Shenzhen Bay Laboratory, No. 9 Duxue Road, Shenzhen 518055, China
| | - Wenjun Chen
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Shenzhen Bay Laboratory, No. 9 Duxue Road, Shenzhen 518055, China
| | - Xinggui Wu
- CloudMinds, Inc., Shenzhen Bay Science and Technology Ecological Park, Nanshan District, Shenzhen 100022, China.
| | - Jinhong Guo
- School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China.
| | - Xing Ma
- Sauvage Laboratory for Smart Materials, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Shenzhen Bay Laboratory, No. 9 Duxue Road, Shenzhen 518055, China
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Xiao W, Liang J, Zhang Y, Zhang Y, Teng P, Cao D, Zou S, Xu T, Zhao J, Tang Y. CD8 cell counting in whole blood by a paper-based time-resolved fluorescence lateral flow immunoassay. Anal Chim Acta 2021; 1179:338820. [PMID: 34535251 DOI: 10.1016/j.aca.2021.338820] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 06/28/2021] [Accepted: 06/30/2021] [Indexed: 12/11/2022]
Abstract
The number of CD8+ T lymphocytes (CD8 cells) in peripheral blood can directly reflect the immune status of the body and is widely used for auxiliary diagnosis and prognostic evaluation of diseases. There is an urgent need to develop a simple CD8 cell-counting platform to meet clinical needs. Our group designed a paper-based cell-counting method based on a blocking competition strategy. In addition, we developed a time-resolved fluorescence-blocking competitive lateral flow immunoassay (TRF-BCLFIA) for point-of-care CD8 cell counting that functions by measuring europium nanoparticle (EuNP)-labeled CD8 antibody probes that are not captured by CD8 cells, and we indirectly calculated the concentration of CD8 cells in samples. Within 30 min, four operation steps can provide an accurate CD8 cell count for a 75-μL whole-blood sample, and this approach can be implemented on a handheld device. The TRF-BCLFIA reliably quantified CD8 cells in whole-blood samples, in which the assay exhibited a linear correlation (R2 = 0.989) readout for CD8 cell concentrations ranging from 137 to 821 cells/μL. To validate this approach, our newly developed CD8 cell-counting tool was used to assess 33 tumor patient blood samples. The results showed a high consistency with a flow cytometry-based absolute count. This analysis approach is a promising alternative for the costly standard flow cytometry-based tools for CD8 cell counting in tumor patients in community clinics, small hospitals, and low medical resource regions. This technology would deliver simple diagnostics to patients anywhere in the world, regardless of geography or socioeconomic status.
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Affiliation(s)
- Wei Xiao
- Department of Laboratory Medicine, Guangdong Second Provincial General Hospital, Guangzhou, 510317, PR China
| | - Jiajie Liang
- Department of Bioengineering, Guangdong Province Engineering Research Center of Antibody Drug and Immunoassay, Jinan University, Guangzhou, 510632, PR China
| | - Ying Zhang
- Department of Bioengineering, Guangdong Province Engineering Research Center of Antibody Drug and Immunoassay, Jinan University, Guangzhou, 510632, PR China
| | - Yan Zhang
- Department of Oncology, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, 510630, PR China
| | - Peijun Teng
- Department of Bioengineering, Guangdong Province Engineering Research Center of Antibody Drug and Immunoassay, Jinan University, Guangzhou, 510632, PR China
| | - Dongni Cao
- Department of Bioengineering, Guangdong Province Engineering Research Center of Antibody Drug and Immunoassay, Jinan University, Guangzhou, 510632, PR China
| | - Siyi Zou
- Department of Bioengineering, Guangdong Province Engineering Research Center of Antibody Drug and Immunoassay, Jinan University, Guangzhou, 510632, PR China
| | - Tao Xu
- Department of Bioengineering, Guangdong Province Engineering Research Center of Antibody Drug and Immunoassay, Jinan University, Guangzhou, 510632, PR China
| | - Jianfu Zhao
- Department of Oncology, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, 510630, PR China.
| | - Yong Tang
- Department of Bioengineering, Guangdong Province Engineering Research Center of Antibody Drug and Immunoassay, Jinan University, Guangzhou, 510632, PR China.
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Min HJ, Mina HA, Deering AJ, Bae E. Development of a smartphone-based lateral-flow imaging system using machine-learning classifiers for detection of Salmonella spp. J Microbiol Methods 2021; 188:106288. [PMID: 34280431 DOI: 10.1016/j.mimet.2021.106288] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/14/2021] [Accepted: 07/14/2021] [Indexed: 01/11/2023]
Abstract
Salmonella spp. are a foodborne pathogen frequently found in raw meat, egg products, and milk. Salmonella is responsible for numerous outbreaks, becoming a frequent major public-health concern. Many studies have recently reported handheld and rapid devices for microbial detection. This study explored a smartphone-based lateral-flow assay analyzer which employed machine-learning algorithms to detect various concentrations of Salmonella spp. from the test line images. When cell numbers are low, a faint test line is difficult to detect, leading to misleading results. Hence, this study focused on the development of a smartphone-based lateral-flow assay (SLFA) to distinguish ambiguous concentrations of test line with higher confidence. A smartphone cradle was designed with an angled slot to maximize the intensity, and the optimal direction of the optimal incident light was found. Furthermore, the combination of color spaces and the machine-learning algorithms were applied to the SLFA for classifications. It was found that the combination of L*a*b and RGB color space with SVM and KNN classifiers achieved the high accuracy (95.56%). A blind test was conducted to evaluate the performance of devices; the results by machine-learning techniques reported less error than visual inspection. The smartphone-based lateral-flow assay provided accurate interpretation with a detection limit of 5 × 104 CFU/mL commercially available lateral-flow assays.
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Affiliation(s)
- Hyun Jung Min
- Applied Optics Laboratory, School of Mechanical Engineering, West Lafayette, IN 47907, USA
| | - Hansel A Mina
- Department of Food Science, West Lafayette, IN 47907, USA
| | | | - Euiwon Bae
- Applied Optics Laboratory, School of Mechanical Engineering, West Lafayette, IN 47907, USA.
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Castillo-León J, Trebbien R, Castillo JJ, Svendsen WE. Commercially available rapid diagnostic tests for the detection of high priority pathogens: status and challenges. Analyst 2021; 146:3750-3776. [PMID: 34060546 DOI: 10.1039/d0an02286a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The ongoing COVID-19 pandemic has shown the importance of having analytical devices that allow a simple, fast, and robust detection of pathogens which cause epidemics and pandemics. The information these devices can collect is crucial for health authorities to make effective decisions to contain the disease's advance. The World Health Organization published a list of primary pathogens that have raised concern as potential causes of future pandemics. Unfortunately, there are no rapid diagnostic tests commercially available and approved by the regulatory bodies to detect most of the pathogens listed by the WHO. This report describes these pathogens, the available detection methods, and highlights areas where more attention is needed to produce rapid diagnostic tests for future pandemic surveillance.
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Affiliation(s)
- Jaime Castillo-León
- Bioengineering Department, Technical University of Denmark, Ørsteds Plads, DK-2800 Kgs. Lyngby, Denmark.
| | - Ramona Trebbien
- Statens Serum Institut, 5 Artillerivej, DK-2300 Copenhagen, Denmark
| | - John J Castillo
- Escuela de Química, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Winnie E Svendsen
- Bioengineering Department, Technical University of Denmark, Ørsteds Plads, DK-2800 Kgs. Lyngby, Denmark.
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Taranova NA, Slobodenuyk VD, Zherdev AV, Dzantiev BB. Network of gold conjugates for enhanced sensitive immunochromatographic assays of troponins. RSC Adv 2021; 11:16445-16452. [PMID: 35479181 PMCID: PMC9030257 DOI: 10.1039/d1ra02212a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 04/27/2021] [Indexed: 01/13/2023] Open
Abstract
Highly sensitive detection of cardiac troponins I and T (cTnI and cTnT) was completed by immunochromatography with double amplification, through the binding of functionalized gold nanoparticles (GNPs). The robust nature of the approach, based on the formation of nanoparticle networks through the biotin-streptavidin interaction, was confirmed; the choice of the best assay parameters for maximal increase in ICA sensitivity was demonstrated. A bifunctional conjugate of GNPs with biotinylated specific IgG and two auxiliary conjugates, GNP-biotin and GNP-streptavidin, form three-component aggregates in the analytical zone of the test strip. The inclusion of abundant gold labels in the resulting immune complex leads to an amplified colorimetric signal. The limits of detection (LoDs) of cTnI and cTnT were 0.9 and 0.4 ng mL-1, respectively, which is 3 times lower than the LoDs of more commonly used systems. Visual LoDs were 10-fold lower in concentration. The enhancement has been realized both in single and double assay formats; analysis of cTnI and cTnT presented the same characteristics.
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Affiliation(s)
- Nadezhda A Taranova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Vladislav D Slobodenuyk
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Anatoly V Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
| | - Boris B Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences Leninsky Prospect 33 119071 Moscow Russia
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41
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Zangheri M, Di Nardo F, Calabria D, Marchegiani E, Anfossi L, Guardigli M, Mirasoli M, Baggiani C, Roda A. Smartphone biosensor for point-of-need chemiluminescence detection of ochratoxin A in wine and coffee. Anal Chim Acta 2021; 1163:338515. [PMID: 34024424 DOI: 10.1016/j.aca.2021.338515] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/08/2021] [Accepted: 04/11/2021] [Indexed: 02/07/2023]
Abstract
Exposure to mycotoxins, which may contaminate food and feed commodities, represents a serious health risk for consumers. Ochratoxin A (OTA) is one of the most abundant and toxic mycotoxins, thus specific regulations for fixing its maximum admissible levels in foodstuff have been established. Lateral Flow ImmunoAssay (LFIA)-based devices have been proposed as screening tools to avoid OTA contamination along the whole food chain. We report a portable, user-friendly smartphone-based biosensor for the detection and quantification of OTA in wine and instant coffee, which combines the LFIA approach with chemiluminescence (CL) detection. The device employs the smartphone camera as a light detector and uses low-cost, disposable analytical cartridges containing the LFIA strip and all the necessary reagents. The analysis can be carried out at the point of need by non-specialized operators through simple manual operations. The biosensor allows OTA quantitative detection in wine and coffee samples up to 25 μg L-1 and with limits of detection of 0.3 and 0.1 μg L-1, respectively, which are below the European law-fixed limits. These results demonstrate that the developed device can be used for routine monitoring of OTA contamination, enabling rapid and reliable identification of positive samples requiring confirmatory analysis.
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Affiliation(s)
- Martina Zangheri
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interdepartmental Centre of Industrial Agrifood Research (CIRI Agrifood), Alma Mater Studiorum, University of Bologna, Piazza Goidanich 60, 47521, Cesena, FC, Italy.
| | - Fabio Di Nardo
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125, Torino, Italy.
| | - Donato Calabria
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Elisa Marchegiani
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Laura Anfossi
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125, Torino, Italy
| | - Massimo Guardigli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interdepartmental Centre of Industrial Research "Renewable Sources, Environment, Blue Growth, Energy", University of Bologna, Via Angherà 22, Rimini, 47921, Italy
| | - Mara Mirasoli
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interuniversity Consortium "Istituto Nazionale Biostrutture e Biosistemi" (INBB) - Viale Delle Medaglie D'Oro 305, 00136, Roma, Italy; Interdepartmental Centre of Industrial Research "Renewable Sources, Environment, Blue Growth, Energy", University of Bologna, Via Angherà 22, Rimini, 47921, Italy
| | - Claudio Baggiani
- Department of Chemistry, University of Turin, Via P. Giuria 5, 10125, Torino, Italy
| | - Aldo Roda
- Department of Chemistry "Giacomo Ciamician", Alma Mater Studiorum - University of Bologna, Via Selmi 2, 40126, Bologna, Italy; Interuniversity Consortium "Istituto Nazionale Biostrutture e Biosistemi" (INBB) - Viale Delle Medaglie D'Oro 305, 00136, Roma, Italy
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42
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Peng T, Sui Z, Huang Z, Xie J, Wen K, Zhang Y, Huang W, Mi W, Peng K, Dai X, Fang X. Point-of-care test system for detection of immunoglobulin-G and -M against nucleocapsid protein and spike glycoprotein of SARS-CoV-2. SENSORS AND ACTUATORS. B, CHEMICAL 2021; 331:129415. [PMID: 33519091 DOI: 10.1016/j.snb.2020.129414] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/13/2020] [Accepted: 12/28/2020] [Indexed: 05/27/2023]
Abstract
The coronavirus disease 2019 (COVID-19) epidemic continues to ravage the world. In epidemic control, dealing with a large number of samples is a huge challenge. In this study, a point-of-care test (POCT) system was successfully developed and applied for rapid and accurate detection of immunoglobulin-G and -M against nucleocapsid protein (anti-N IgG/IgM) and receptor-binding domain in spike glycoprotein (anti-S-RBD IgG/IgM) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Any one of the IgG/IgM found in a sample was identified as positive. The POCT system contains colloidal gold-based lateral flow immunoassay test strips, homemade portable reader, and certified reference materials, which detected anti-N and anti-S-RBD IgG/IgM objectively in serum within 15 min. Receiver operating characteristic curve analysis was used to determine the optimal cutoff values, sensitivity, and specificity. It exhibited equal to or better performances than four approved commercial kits. Results of the system and chemiluminescence immunoassay kit detecting 108 suspicious samples had high consistency with kappa coefficient at 0.804 (P < 0.001). Besides, the levels and alterations of the IgG/IgM in an inpatient were primarily investigated by the POCT system. Those results suggested the POCT system possess the potential to contribute to rapid and accurate serological diagnosis and epidemiological survey of COVID-19.
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Affiliation(s)
- Tao Peng
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Zhiwei Sui
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | | | - Jie Xie
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Kai Wen
- College of Veterinary Medicine, China Agricultural University, 100193, Beijing, PR China
| | - Yongzhuo Zhang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Wenfeng Huang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, PR China
| | - Wei Mi
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Ke Peng
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, PR China
| | - Xinhua Dai
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Xiang Fang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
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43
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Peng T, Sui Z, Huang Z, Xie J, Wen K, Zhang Y, Huang W, Mi W, Peng K, Dai X, Fang X. Point-of-care test system for detection of immunoglobulin-G and -M against nucleocapsid protein and spike glycoprotein of SARS-CoV-2. SENSORS AND ACTUATORS. B, CHEMICAL 2021; 331:129415. [PMID: 33519091 PMCID: PMC7833039 DOI: 10.1016/j.snb.2020.129415] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/13/2020] [Accepted: 12/28/2020] [Indexed: 05/02/2023]
Abstract
The coronavirus disease 2019 (COVID-19) epidemic continues to ravage the world. In epidemic control, dealing with a large number of samples is a huge challenge. In this study, a point-of-care test (POCT) system was successfully developed and applied for rapid and accurate detection of immunoglobulin-G and -M against nucleocapsid protein (anti-N IgG/IgM) and receptor-binding domain in spike glycoprotein (anti-S-RBD IgG/IgM) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Any one of the IgG/IgM found in a sample was identified as positive. The POCT system contains colloidal gold-based lateral flow immunoassay test strips, homemade portable reader, and certified reference materials, which detected anti-N and anti-S-RBD IgG/IgM objectively in serum within 15 min. Receiver operating characteristic curve analysis was used to determine the optimal cutoff values, sensitivity, and specificity. It exhibited equal to or better performances than four approved commercial kits. Results of the system and chemiluminescence immunoassay kit detecting 108 suspicious samples had high consistency with kappa coefficient at 0.804 (P < 0.001). Besides, the levels and alterations of the IgG/IgM in an inpatient were primarily investigated by the POCT system. Those results suggested the POCT system possess the potential to contribute to rapid and accurate serological diagnosis and epidemiological survey of COVID-19.
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Affiliation(s)
- Tao Peng
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Zhiwei Sui
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | | | - Jie Xie
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Kai Wen
- College of Veterinary Medicine, China Agricultural University, 100193, Beijing, PR China
| | - Yongzhuo Zhang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Wenfeng Huang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, PR China
| | - Wei Mi
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Ke Peng
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, PR China
| | - Xinhua Dai
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
| | - Xiang Fang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100029, PR China
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44
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Sun Y, Kuo C, Lu C, Lin C. Review of recent advances in improved lateral flow immunoassay for the detection of pathogenic
Escherichia
coli
O157
:
H7
in foods. J Food Saf 2020. [DOI: 10.1111/jfs.12867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yu‐Ling Sun
- Aquatic Technology Laboratories Agricultural Technology Research Institute Hsinchu Taiwan
| | - Chiu‐Mei Kuo
- Bioresource Collection and Research Center Food Industry Research and Development Institute Hsinchu Taiwan
| | - Chung‐Lun Lu
- Aquatic Technology Laboratories Agricultural Technology Research Institute Hsinchu Taiwan
| | - Chih‐Sheng Lin
- Department of Biological Science and Technology National Chiao Tung University Hsinchu Taiwan
- Center for Intelligent Drug Systems and Smart Bio‐devices (IDS2B) National Chiao Tung University Hsinchu Taiwan
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45
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Ren Y, Wei J, He Y, Wang Y, Bai M, Zhang C, Luo L, Wang J, Wang Y. Ultrasensitive label-free immunochromatographic strip sensor for Salmonella determination based on salt-induced aggregated gold nanoparticles. Food Chem 2020; 343:128518. [PMID: 33160767 DOI: 10.1016/j.foodchem.2020.128518] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/11/2020] [Accepted: 10/27/2020] [Indexed: 01/01/2023]
Abstract
Here we present an innovative label-free immunochromatographic strip (ICTS) sensor, in which salt-induced aggregated gold nanoparticles (SIA-AuNPs) act as the signal probe, allowing in 14 min the identification and sensitive quantification of Salmonella as model targets. It has been evidenced that SIA-AuNPs could be absorbed on the surface of bacteria based on van der Waals forces. The SIA-AuNPs@Salmonella complex was captured by anti-Salmonella polyclonal antibody deposited on the test zone. With the label-free ICTS sensor, we successfully detected Salmonella in a concentration range of 103-108 CFU/mL and a visual detection limit of 1 × 103 CFU/mL. The band of test zone could be distinguished at a concentration of 103 CFU/mL by naked eye, which is 100-fold lower than the cationic AuNPs based method. The strip sensor was further validated with real samples including cabbage and drinking water with excellent precision and showed to provide excellent recovery.
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Affiliation(s)
- Yarong Ren
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Juan Wei
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Yixin He
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Ye Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Mengfan Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Cui Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Linpin Luo
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China
| | - Jianlong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
| | - Yanru Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
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Wang X, Kong L, Gan Y, Liang T, Zhou S, Sun J, Wan H, Wang P. Microfluidic-based fluorescent electronic eye with CdTe/CdS core-shell quantum dots for trace detection of cadmium ions. Anal Chim Acta 2020; 1131:126-135. [DOI: 10.1016/j.aca.2020.06.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 01/02/2023]
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47
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Andryukov BG. Six decades of lateral flow immunoassay: from determining metabolic markers to diagnosing COVID-19. AIMS Microbiol 2020; 6:280-304. [PMID: 33134745 PMCID: PMC7595842 DOI: 10.3934/microbiol.2020018] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 08/20/2020] [Indexed: 01/10/2023] Open
Abstract
Technologies based on lateral flow immunoassay (LFIA), known in some countries of the world as immunochromatographic tests, have been successfully used for the last six decades in diagnostics of many diseases and conditions as they allow rapid detection of molecular ligands in biosubstrates. The popularity of these diagnostic platforms is constantly increasing in healthcare facilities, particularly those facing limited budgets and time, as well as in household use for individual health monitoring. The advantages of these low-cost devices over modern laboratory-based analyzers come from their availability, opportunity of rapid detection, and ease of use. The attractiveness of these portable diagnostic tools is associated primarily with their high analytical sensitivity and specificity, as well as with the easy visual readout of results. These qualities explain the growing popularity of LFIA in developing countries, when applied at small hospitals, in emergency situations where screening and monitoring health condition is crucially important, and as well as for self-testing of patients. These tools have passed the test of time, and now LFIA test systems are fully consistent with the world's modern concept of ‘point-of-care testing’, finding a wide range of applications not only in human medicine, but also in ecology, veterinary medicine, and agriculture. The extensive opportunities provided by LFIA contribute to the continuous development and improvement of this technology and to the creation of new-generation formats. This review will highlight the modern principles of design of the most widely used formats of test-systems for clinical laboratory diagnostics, summarize the main advantages and disadvantages of the method, as well as the current achievements and prospects of the LFIA technology. The latest innovations are aimed at improving the analytical performance of LFIA platforms for the diagnosis of bacterial and viral infections, including COVID-19.
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Affiliation(s)
- Boris G Andryukov
- Somov Research Institute of Epidemiology and Microbiology, Vladivostok, Russian Federation.,Far Eastern Federal University (FEFU), Vladivostok, Russian Federation
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48
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Patchsung M, Jantarug K, Pattama A, Aphicho K, Suraritdechachai S, Meesawat P, Sappakhaw K, Leelahakorn N, Ruenkam T, Wongsatit T, Athipanyasilp N, Eiamthong B, Lakkanasirorat B, Phoodokmai T, Niljianskul N, Pakotiprapha D, Chanarat S, Homchan A, Tinikul R, Kamutira P, Phiwkaow K, Soithongcharoen S, Kantiwiriyawanitch C, Pongsupasa V, Trisrivirat D, Jaroensuk J, Wongnate T, Maenpuen S, Chaiyen P, Kamnerdnakta S, Swangsri J, Chuthapisith S, Sirivatanauksorn Y, Chaimayo C, Sutthent R, Kantakamalakul W, Joung J, Ladha A, Jin X, Gootenberg JS, Abudayyeh OO, Zhang F, Horthongkham N, Uttamapinant C. Clinical validation of a Cas13-based assay for the detection of SARS-CoV-2 RNA. Nat Biomed Eng 2020; 4:1140-1149. [PMID: 32848209 DOI: 10.1038/s41551-020-00603-x] [Citation(s) in RCA: 386] [Impact Index Per Article: 96.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 07/24/2020] [Indexed: 12/14/2022]
Abstract
Nucleic acid detection by isothermal amplification and the collateral cleavage of reporter molecules by CRISPR-associated enzymes is a promising alternative to quantitative PCR. Here, we report the clinical validation of the specific high-sensitivity enzymatic reporter unlocking (SHERLOCK) assay using the enzyme Cas13a from Leptotrichia wadei for the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-the virus that causes coronavirus disease 2019 (COVID-19)-in 154 nasopharyngeal and throat swab samples collected at Siriraj Hospital, Thailand. Within a detection limit of 42 RNA copies per reaction, SHERLOCK was 100% specific and 100% sensitive with a fluorescence readout, and 100% specific and 97% sensitive with a lateral-flow readout. For the full range of viral load in the clinical samples, the fluorescence readout was 100% specific and 96% sensitive. For 380 SARS-CoV-2-negative pre-operative samples from patients undergoing surgery, SHERLOCK was in 100% agreement with quantitative PCR with reverse transcription. The assay, which we show is amenable to multiplexed detection in a single lateral-flow strip incorporating an internal control for ribonuclease contamination, should facilitate SARS-CoV-2 detection in settings with limited resources.
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Affiliation(s)
- Maturada Patchsung
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Krittapas Jantarug
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Archiraya Pattama
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kanokpol Aphicho
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Surased Suraritdechachai
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Piyachat Meesawat
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Khomkrit Sappakhaw
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Nattawat Leelahakorn
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Theerawat Ruenkam
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Thanakrit Wongsatit
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Niracha Athipanyasilp
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Bhumrapee Eiamthong
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Benya Lakkanasirorat
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Thitima Phoodokmai
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | | | - Danaya Pakotiprapha
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Sittinan Chanarat
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Aimorn Homchan
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Ruchanok Tinikul
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Philaiwarong Kamutira
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Kochakorn Phiwkaow
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Sahachat Soithongcharoen
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Chadaporn Kantiwiriyawanitch
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Vinutsada Pongsupasa
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Duangthip Trisrivirat
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Juthamas Jaroensuk
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Thanyaporn Wongnate
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Somchart Maenpuen
- Department of Biochemistry, Faculty of Science, Burapha University, Chonburi, Thailand
| | - Pimchai Chaiyen
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand
| | - Sirichai Kamnerdnakta
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Jirawat Swangsri
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Suebwong Chuthapisith
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Yongyut Sirivatanauksorn
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chutikarn Chaimayo
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Ruengpung Sutthent
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Wannee Kantakamalakul
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Julia Joung
- Howard Hughes Medical Institute, Cambridge, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,McGovern Institute for Brain Research at MIT, Cambridge, MA, USA.,Department of Biological Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
| | - Alim Ladha
- Howard Hughes Medical Institute, Cambridge, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,McGovern Institute for Brain Research at MIT, Cambridge, MA, USA.,Department of Biological Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
| | - Xin Jin
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,McGovern Institute for Brain Research at MIT, Cambridge, MA, USA.,Society of Fellows, Harvard University, Cambridge, MA, USA.,Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
| | - Jonathan S Gootenberg
- McGovern Institute for Brain Research at MIT, Cambridge, MA, USA.,Massachusetts Consortium for Pathogen Readiness, Boston, MA, USA
| | - Omar O Abudayyeh
- McGovern Institute for Brain Research at MIT, Cambridge, MA, USA.,Massachusetts Consortium for Pathogen Readiness, Boston, MA, USA
| | - Feng Zhang
- Howard Hughes Medical Institute, Cambridge, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA.,McGovern Institute for Brain Research at MIT, Cambridge, MA, USA.,Department of Biological Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA.,Massachusetts Consortium for Pathogen Readiness, Boston, MA, USA.,Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, USA
| | - Navin Horthongkham
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
| | - Chayasith Uttamapinant
- School of Biomolecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong, Thailand.
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49
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Liu Z, Hua Q, Wang J, Liang Z, Li J, Wu J, Shen X, Lei H, Li X. A smartphone-based dual detection mode device integrated with two lateral flow immunoassays for multiplex mycotoxins in cereals. Biosens Bioelectron 2020; 158:112178. [PMID: 32275211 DOI: 10.1016/j.bios.2020.112178] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 12/11/2022]
Abstract
In this study, a smartphone-based quantitative dual detection mode device, integrated with gold nanoparticles (GNPs) and time-resolved fluorescence microspheres (TRFMs) lateral flow immunoassays (LFIA) for multiplex mycotoxins in cereals were established. The most frequently used visible light and fluorescence detection modes were integrated in one device. A user-friendly application was self-written to rapidly quantify results. GNPs-LFIA and TRFMs-LFIA were used to detect aflatoxin B1 (AFB1), zearalenone (ZEN), deoxynivalenol (DON), T-2 toxin (T-2), and fumonisin B1 (FB1). The visible limits of detection (vLODs) were 10/2.5/1.0/10/0.5, 2.5/0.5/0.5/2.5/0.5 μg/kg for the two methods, respectively. The quantitative limits of detection (qLODs) were 0.59/0.24/0.32/0.9/0.27, 0.42/0.10/0.05/0.75/0.04 μg/kg, respectively. The recoveries of both LFIAs ranged from 84.0%-110.0%. A parallel analysis in 30 naturally contaminated cereal samples was conducted by liquid chromatography-tandem mass spectrometry (LC-MS/MS), the results showed good consistency, indicating the practical reliability of the established methods. The developed two smartphone-based LFIAs provide a promising technique for multiplex, highly sensitive, and on-site detection of mycotoxins.
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Affiliation(s)
- Zhiwei Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Qicheng Hua
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Jin Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Zaoqing Liang
- College of Mathematics and Infromatics, College of Software Engineering, South China Agricultural University, Guangzhou, 510642, China
| | - Jiahao Li
- College of Mathematics and Infromatics, College of Software Engineering, South China Agricultural University, Guangzhou, 510642, China
| | - Jinxiao Wu
- Shanxi Institute of Feed and Veterinary Drug control, Taiyuan, 030000, China
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China.
| | - Xiangmei Li
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, 510642, China.
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50
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Recent advances in high-sensitivity detection methods for paper-based lateral-flow assay. Biosens Bioelectron 2020; 152:112015. [PMID: 32056735 DOI: 10.1016/j.bios.2020.112015] [Citation(s) in RCA: 190] [Impact Index Per Article: 47.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/02/2020] [Accepted: 01/08/2020] [Indexed: 12/19/2022]
Abstract
Paper-based lateral-flow assays (LFAs) have achieved considerable commercial success and continue to have a significant impact on medical diagnostics and environmental monitoring. Conventional LFAs are typically performed by examining the color changes in the test bands by naked eye. However, for critical biochemical markers that are present in extremely small amounts in the clinical specimens, this readout method is not quantitative, and does not provide sufficient sensitivity or suitable detection limit for a reliable assay. Diverse technologies for high-sensitivity LFA detection have been developed and commercialization efforts are underway. In this review, we aim to provide a critical and objective overview of the recent progress in high-sensitivity LFA detection technologies, which involve the exploitation of the physical and chemical responses of transducing particles. The features and biomedical applications of the technologies, along with future prospects and challenges, are also discussed.
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