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Wiriyachaiporn N, Kongrueng J, Sukkuea K, Tanrattanawong R, Vanichtanankul J, Saeyang T, Jantra T, Japrung D, Maneeprakorn W, Bamrungsap S, Janchompoo P, Pasomsub E. Characterizing a visual lateral flow device for rapid SARS-CoV-2 virus protein detection: pre-clinical and system assessment. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2740-2750. [PMID: 38634326 DOI: 10.1039/d3ay02075d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infections have affected more than 769 million individuals worldwide over the last few years. Although the pandemic is transitioning into an endemic, the COVID-19 outbreak is still a global concern. A rapid screening platform is needed for effective preventive and control measures. Herein, a visual rapid lateral flow platform for SARS-CoV-2 nucleocapsid protein detection is developed. Under optimal conditions, the system demonstrated good detection sensitivity and selectivity against tested respiratory viruses. The system provides direct visual detection with a limit of 0.7 ng of the nucleocapsid protein per mL of a sample (0.7 ng mL-1) within 15 minutes. Further, a correlation between direct visual detection and semi-quantitative analysis using a reader showed a similar detection limit (R2 = 0.9571). The repeatability and reproducibility studies highlighted the potential of the system for the rapid screening of SARS-CoV-2 infection, with variations within 5% and 10% at high and low protein concentrations, respectively. Subsequent pre-clinical validation to correlate the performance with the standard molecular approach (RT-PCR) using 170 nasopharyngeal swabs demonstrated 98% estimated sensitivity (95% CI, 89.35-99.95%) and 100% specificity (95% CI, 96.38-100%). The positive and negative predictive values were reported to be 100% and 99%, respectively, with an accuracy of 99.3%. With high viral load samples (Ct value ≤25, n = 47), the system demonstrated 100% detection sensitivity and specificity. The proposed technique provides a valuable platform for potential use in rapid screening, particularly during pandemics, where diagnostic capacity and mass screening are crucial.
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Affiliation(s)
- Natpapas Wiriyachaiporn
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Jetnapang Kongrueng
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Kannika Sukkuea
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Rattana Tanrattanawong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Jarunee Vanichtanankul
- National Center of Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Thanaya Saeyang
- National Center of Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Tararat Jantra
- National Center of Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - Deanpen Japrung
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Weerakanya Maneeprakorn
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Suwussa Bamrungsap
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand.
| | - Pareena Janchompoo
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Ekawat Pasomsub
- Department of Pathology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Wang KS, Kuan TY, Chen YC, Chu YJ, Chen JS, Chen CC, Liu TY. Simultaneous detection of SARS-CoV-2 S1 protein by using flexible electrochemical and Raman enhancing biochip. Biosens Bioelectron 2024; 249:116021. [PMID: 38219466 DOI: 10.1016/j.bios.2024.116021] [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: 11/03/2023] [Revised: 12/25/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
Flexible laser-scribed graphene (LSG) substrates with gold nanoislands have been developed as biochips for in situ electrochemical (EC) and surface-enhanced Raman scattering (SERS) biodetection (biomolecules and viral proteins). A flexible biochip was fabricated using CO2 laser engraving polyimide (PI) films to form a 3D porous graphene-like nanostructure. Gold nanoislands were deposited on the LSG substrates to enhance the intensity of the Raman signals. Moreover, the addition of auxiliary and reference electrodes induced a dual-function EC-SERS biochip with significantly enhanced detection sensitivity. The biochip could selectively and easily capture SARS-CoV-2 S1 protein through the SARS-CoV-2 S1 antibody immobilized on EC-SERS substrates using 1-ethyl-(3-dimethylaminopropyl)carbodiimide (EDC) and N-hydroxysuccinimide (NHS). The grafted antibody specifically bound to SARS-CoV-2, resulting in a significant increase in the SERS signal of the target analyte. The limit of detection (LOD) of the SARS-CoV-2 S1 protein was 5 and 100 ng/mL by using EC and SERS detection, respectively. Although the LOD of the SARS-CoV-2 S1 protein detected using SERS is only 100 ng/mL, it can provide fingerprint information for identification. To improve the LOD, EC detection was integrated with SERS detection. The three-electrode detection chip enables the simultaneous detection of SERS and EC signals, which provides complementary information for target identification. The dual-functional detection technology demonstrated in this study has great potential for biomedical applications, such as the rapid and sensitive detection of SARS-CoV-2.
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Affiliation(s)
- Kuan-Syun Wang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Tsai-Yu Kuan
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Yun-Chu Chen
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Yu-Ju Chu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan
| | - Jeng-Shiung Chen
- Yottadeft Optoelectronics Technology Co., Ltd., Taipei, 10460, Taiwan
| | - Cheng-Cheung Chen
- Institute of Preventive Medicine, National Defense Medical Center, New Taipei City, 23742, Taiwan; Graduate Institute of Medical Science, National Defense Medical Center, Taipei, 11490, Taiwan.
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 243303, Taiwan; College of Engineering & Center for Sustainability and Energy Technologies, Chang Gung University, Taoyuan, 33302, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan City, Taiwan.
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Ding H, Zhang W, Wang SA, Li C, Li W, Liu J, Yu F, Tao Y, Cheng S, Xie H, Chen Y. A semi-quantitative upconversion nanoparticle-based immunochromatographic assay for SARS-CoV-2 antigen detection. Front Microbiol 2023; 14:1289682. [PMID: 38149276 PMCID: PMC10750388 DOI: 10.3389/fmicb.2023.1289682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/20/2023] [Indexed: 12/28/2023] Open
Abstract
The unprecedented public health and economic impact of the coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has been met with an equally unprecedented scientific response. Sensitive point-of-care methods to detect SARS-CoV-2 antigens in clinical specimens are urgently required for the rapid screening of individuals with viral infection. Here, we developed an upconversion nanoparticle-based lateral flow immunochromatographic assay (UCNP-LFIA) for the high-sensitivity detection of SARS-CoV-2 nucleocapsid (N) protein. A pair of rabbit SARS-CoV-2 N-specific monoclonal antibodies was conjugated to UCNPs, and the prepared UCNPs were then deposited into the LFIA test strips for detecting and capturing the N protein. Under the test conditions, the limit of detection (LOD) of UCNP-LFIA for the N protein was 3.59 pg/mL, with a linear range of 0.01-100 ng/mL. Compared with that of the current colloidal gold-based LFIA strips, the LOD of the UCNP-LFIA-based method was increased by 100-fold. The antigen recovery rate of the developed method in the simulated pharyngeal swab samples ranged from 91.1 to 117.3%. Furthermore, compared with the reverse transcription-polymerase chain reaction, the developed UCNP-LFIA method showed a sensitivity of 94.73% for 19 patients with COVID-19. Thus, the newly established platform could serve as a promising and convenient fluorescent immunological sensing approach for the efficient screening and diagnosis of COVID-19.
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Affiliation(s)
- Hai Ding
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wanying Zhang
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shu-an Wang
- Department of Clinic Nutrition, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Chuang Li
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wanting Li
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Liu
- Polariton Life Technologies Ltd., Soochow, Jiangsu, China
| | - Fang Yu
- Polariton Life Technologies Ltd., Soochow, Jiangsu, China
| | - Yanru Tao
- Polariton Life Technologies Ltd., Soochow, Jiangsu, China
| | - Siyun Cheng
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hui Xie
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuxin Chen
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, Jiangsu, China
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Ng DLC, Bin Jamalludin MA, Gan XY, Ng SY, Bin Mohamad Rasidin MZ, Felix BA, Jagang NM, Sindeh W, Bin Mohd Abdul Rahim MAH, Tan SB, Chai CS. Public's Willingness to Perform COVID-19 Self-Testing During the Transition to the Endemic Phase in Malaysia - A Population-Based Cross-Sectional Study. Risk Manag Healthc Policy 2023; 16:2505-2519. [PMID: 38024502 PMCID: PMC10676112 DOI: 10.2147/rmhp.s439530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Malaysia entered the transition to the endemic phase of Coronavirus 2019 (COVID-19) on 1st April 2022. This study aims to determine the public's willingness to perform COVID-19 self-testing. Factors that influenced their willingness were also assessed. Methods A nationwide, cross-sectional, and population-based study was conducted online in Malaysia from 28th April 2023 to 4th June 2023. Individuals aged 18 years and above were enrolled through the snowball sampling method. Data were analyzed by using the Chi-Square test, independent t-test, and binary logistic regression. Results One thousand four hundred fifty-three responses were included in the analysis. Of these respondents, 89.3% were willing, 4.1% were reluctant, and 6.6% remained hesitant to perform COVID-19 self-testing, The common reasons given by those willing to perform COVID-19 self-testing included being able to self-isolate (99.0%) and seek treatment (96.3%) earlier if tested positive. The common reasons against COVID-19 self-testing included the belief that COVID-19 is equivalent to the common flu (91.7%) and having received the COVID-19 vaccine (78.3%). The isolation policy for COVID-19 was the most significant consideration for those who were still hesitant (85.4%). Women [adjusted odds ratios (OR): 2.1, 95% confidence intervals (95% CI): 1.44-3.00, p < 0.001], individuals with tertiary education (OR: 2.1, 95% CI: 1.32-3.26, p = 0.002), those vaccinated against COVID-19 (OR: 8.1, 95% CI: 2.63-24.82, p < 0.001), and individuals with prior experience of COVID-19 self-testing (OR: 4.2, 95% CI: 2.84-6.12, p < 0.001) showed a significantly higher willingness to engage in COVID-19 self-testing. Conclusion The public exhibited a high willingness to perform COVID-19 self-testing during the transition to the endemic phase in Malaysia. Future strategies to promote COVID-19 self-testing uptake in Malaysia should focus on vulnerable groups, address the common concerns among those hesitant and reluctant, and highlight the advantages of COVID-19 self-testing.
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Affiliation(s)
- Diana-Leh-Ching Ng
- Department of Medicine, Faculty of Medicine and Health Science, University Malaysia Sarawak, Kota Samarahan, Malaysia
| | | | - Xhi-Yan Gan
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Siew-Yoong Ng
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Beverlyn Anak Felix
- Department of Medicine, Faculty of Medicine and Health Science, University Malaysia Sarawak, Kota Samarahan, Malaysia
| | | | - Woweham Sindeh
- Telupid Health Clinic, Ministry of Health, Beluran, Malaysia
| | | | - Seng-Beng Tan
- Palliative Care Unit, Subang Jaya Medical Center, Subang Jaya, Selangor, Malaysia
| | - Chee-Shee Chai
- Department of Medicine, Faculty of Medicine and Health Science, University Malaysia Sarawak, Kota Samarahan, Malaysia
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Kumar S, Ko T, Chae Y, Jang Y, Lee I, Lee A, Shin S, Nam MH, Kim BS, Jun HS, Seo S. Proof-of-Concept: Smartphone- and Cloud-Based Artificial Intelligence Quantitative Analysis System (SCAISY) for SARS-CoV-2-Specific IgG Antibody Lateral Flow Assays. BIOSENSORS 2023; 13:623. [PMID: 37366988 DOI: 10.3390/bios13060623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023]
Abstract
Smartphone-based point-of-care testing (POCT) is rapidly emerging as an alternative to traditional screening and laboratory testing, particularly in resource-limited settings. In this proof-of-concept study, we present a smartphone- and cloud-based artificial intelligence quantitative analysis system (SCAISY) for relative quantification of SARS-CoV-2-specific IgG antibody lateral flow assays that enables rapid evaluation (<60 s) of test strips. By capturing an image with a smartphone camera, SCAISY quantitatively analyzes antibody levels and provides results to the user. We analyzed changes in antibody levels over time in more than 248 individuals, including vaccine type, number of doses, and infection status, with a standard deviation of less than 10%. We also tracked antibody levels in six participants before and after SARS-CoV-2 infection. Finally, we examined the effects of lighting conditions, camera angle, and smartphone type to ensure consistency and reproducibility. We found that images acquired between 45° and 90° provided accurate results with a small standard deviation and that all illumination conditions provided essentially identical results within the standard deviation. A statistically significant correlation was observed (Spearman correlation coefficient: 0.59, p = 0.008; Pearson correlation coefficient: 0.56, p = 0.012) between the OD450 values of the enzyme-linked immunosorbent assay and the antibody levels obtained by SCAISY. This study suggests that SCAISY is a simple and powerful tool for real-time public health surveillance, enabling the acceleration of quantifying SARS-CoV-2-specific antibodies generated by either vaccination or infection and tracking of personal immunity levels.
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Affiliation(s)
- Samir Kumar
- Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
| | - Taewoo Ko
- Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
| | | | - Yuyeon Jang
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea
| | - Inha Lee
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea
| | - Ahyeon Lee
- Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
| | - Sanghoon Shin
- Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
| | - Myung-Hyun Nam
- Department of Laboratory Medicine, Anam Hospital, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Byung Soo Kim
- Department of Hematology, Anam Hospital, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Hyun Sik Jun
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, Republic of Korea
| | - Sungkyu Seo
- Department of Electronics and Information Engineering, Korea University, Sejong 30019, Republic of Korea
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Zhang P, Chen X, Bu F, Chen C, Huang L, Xie Z, Li G, Wang X. Dual Coordination between Stereochemistry and Cations Endows Polyethylene Terephthalate Fabrics with Diversiform Antimicrobial Abilities for Attack and Defense. ACS APPLIED MATERIALS & INTERFACES 2023; 15:9926-9939. [PMID: 36774642 DOI: 10.1021/acsami.2c19323] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Modification of fabrics by stereochemical antiadhesion strategies is an emerging approach to antimicrobial fabric finishing. However, a purely antiadhesive fabric cannot avoid the passive adhesion of pathogenic microorganisms. To address this issue, borneol 4-formylbenzoate (BF) with a stereochemical structure is introduced into a cationic polymer PEI-modified PET fabric by a simple two-step method. The obtained fabric exhibits remarkable features of high bactericidal activity, excellent resistance to bacterial adhesion, desirable fungal repellent performance, and low cytotoxicity. More impressively, this modified fabric not only effectively reduces microbial contamination during food preservation but also plays a role in avoiding infection and accelerating wound healing in the mouse wound model. The dual coordination between stereochemistry and cations is validated as a viable "attack and defense" antimicrobial strategy, providing an effective guide for diversiform antimicrobial designs.
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Affiliation(s)
- Pengfei Zhang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xinyu Chen
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Fanqiang Bu
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Chen Chen
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Lifei Huang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zixu Xie
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Guofeng Li
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xing Wang
- State Key Laboratory of Organic-Inorganic Composites; Beijing Laboratory of Biomedical Materials; College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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