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Esmailpour M, Mohammadimasoudi M, Shemirani MG, Goudarzi A, Heidari Beni MH, Shahsavarani H, Aghajan H, Mehrbod P, Salehi-Vaziri M, Fotouhi F. Rapid, label-free and low-cost diagnostic kit for COVID-19 based on liquid crystals and machine learning. BIOSENSORS & BIOELECTRONICS: X 2022; 12:100233. [PMID: 36097520 PMCID: PMC9452410 DOI: 10.1016/j.biosx.2022.100233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/09/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
We report a label-free method for detection of the SARS-CoV-2 virus in nasopharyngeal swab samples without purification steps and multiplication of the target which simplifies and expedites the analysis process. The kit consists of a textile grid on which liquid crystals (LC) are deposited and the grid is placed in a crossed polarized microscopy. The swab samples are subsequently placed on the LCs. In the presence of a particular biomolecule, the direction of LCs changes locally based on the properties of the biomolecule and forms a particular pattern. As the swab samples are not perfectly purified, image processing and machine learning techniques are employed to detect the presence of specific molecules or quantify their concentrations in the medium. The method can differentiate negative and positive COVID-19 samples with an accuracy of 96% and also differentiate COVID-19 from influenza types A and B with an accuracy of 93%. The kit is portable, simple to manufacture, convenient to operate, cost effective, rapid and sensitive. The simplicity of the specimen processing, the speed of image acquisition, and fast diagnostic operations enable the deployment of the proposed technique for performing extensive on-spot screening of COVID-19 in public places.
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Affiliation(s)
- Mahboube Esmailpour
- Nano-bio-photonics Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mohammad Mohammadimasoudi
- Nano-bio-photonics Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mohammadreza G Shemirani
- Nano-bio-photonics Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Ali Goudarzi
- Nano-bio-photonics Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | | | - Hosein Shahsavarani
- Department of Cell and Molecular Biology, Faculty of Life Science and Biotechnology, Shahid Beheshti University, Tehran, Iran
- Laboratory of Regenerative Medicine and Biomedical Innovations, Pasteur Institute of Iran, Tehran, Iran
| | - Hamid Aghajan
- Department of Electrical Engineering, Sharif University of Technology, Tehran, Iran
| | - Parvaneh Mehrbod
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
| | | | - Fatemeh Fotouhi
- Influenza and Respiratory Viruses Department, Pasteur Institute of Iran, Tehran, Iran
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Maleki B, Hojati Z. A precise review on NAATs-based diagnostic assays for COVID-19: A motion in fast POC molecular tests. Eur J Clin Invest 2022; 52:e13853. [PMID: 35989561 PMCID: PMC9538879 DOI: 10.1111/eci.13853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Diagnosis is one of the main strategies to deal with infectious and deadly diseases such as coronavirus disease 2019 (COVID-19). The global pandemic of COVID-19 has led to an immediate need to expand rapid diagnostic techniques. New isothermal-based methods are being developed for COVID-19 detection aiming to resolve the limitations related to the reverse transcription-quantitative polymerase chain reaction (RT-qPCR) method through immediate samples processing and minimizing false-negative or ambiguous results. Advances in nucleic acid amplification techniques (NAATs) can provide affordable and easy-to-use diagnostic platforms with high sensitivity and specificity in order to be available to the public as approved commercial kits. AIMS The development of point-of-care (POC) testing can assist in rapid clinical decision-making and mitigate burdens on health care facilities. Finally, we discussed the different diagnostic methods based on NAATs for COVID-19 in detail. Comparative parameters are addressed for all assays and Emergency Use Authorizations (EUA)-approved commercial tests are cited. CONCLUSIONS Isothermal-coupled methods and LAMP-based molecular methods have been suggested as suitable portable tests with high diagnostic speed for use in POC testing.
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Affiliation(s)
- Bahareh Maleki
- Division of Genetics, Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Zohreh Hojati
- Division of Genetics, Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
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Breath as the mirror of our body is the answer really blowing in the wind? Recent technologies in exhaled breath analysis systems as non-invasive sensing platforms. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116329] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Detection of SARS-CoV-2 RNA by a Multiplex Reverse-Transcription Loop-Mediated Isothermal Amplification Coupled with Melting Curves Analysis. Int J Mol Sci 2021; 22:ijms22115743. [PMID: 34072209 PMCID: PMC8197939 DOI: 10.3390/ijms22115743] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 12/11/2022] Open
Abstract
Loop-mediated isothermal amplification (LAMP) is a method of nucleic acid amplification that is more stable and resistant to DNA amplification inhibitors than conventional PCR. LAMP multiplexing with reverse transcription allows for the single-tube amplification of several RNA fragments, including an internal control sample, which provides the option of controlling all analytical steps. We developed a method of SARS-CoV-2 viral RNA detection based on multiplex reverse-transcription LAMP, with single-tube qualitative analysis of SARS-CoV-2 RNA and MS2 phage used as a control RNA. The multiplexing is based on the differences in characteristic melting peaks generated during the amplification process. The developed technique detects at least 20 copies of SARS-CoV-2 RNA per reaction on a background of 12,000 MS2 RNA copies. The total time of analysis does not exceed 40 min. The method validation, performed on 125 clinical samples of patients' nasal swabs, showed a 97.6% concordance rate with the results of real-time (RT)-PCR assays. The developed multiplexed LAMP can be employed as an alternative to PCR in diagnostic practice to save personnel and equipment time.
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Jain S, Nehra M, Kumar R, Dilbaghi N, Hu T, Kumar S, Kaushik A, Li CZ. Internet of medical things (IoMT)-integrated biosensors for point-of-care testing of infectious diseases. Biosens Bioelectron 2021; 179:113074. [PMID: 33596516 PMCID: PMC7866895 DOI: 10.1016/j.bios.2021.113074] [Citation(s) in RCA: 117] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 02/06/2023]
Abstract
On global scale, the current situation of pandemic is symptomatic of increased incidences of contagious diseases caused by pathogens. The faster spread of these diseases, in a moderately short timeframe, is threatening the overall population wellbeing and conceivably the economy. The inadequacy of conventional diagnostic tools in terms of time consuming and complex laboratory-based diagnosis process is a major challenge to medical care. In present era, the development of point-of-care testing (POCT) is in demand for fast detection of infectious diseases along with “on-site” results that are helpful in timely and early action for better treatment. In addition, POCT devices also play a crucial role in preventing the transmission of infectious diseases by offering real-time testing and lab quality microbial diagnosis within minutes. Timely diagnosis and further treatment optimization facilitate the containment of outbreaks of infectious diseases. Presently, efforts are being made to support such POCT by the technological development in the field of internet of medical things (IoMT). The IoMT offers wireless-based operation and connectivity of POCT devices with health expert and medical centre. In this review, the recently developed POC diagnostics integrated or future possibilities of integration with IoMT are discussed with focus on emerging and re-emerging infectious diseases like malaria, dengue fever, influenza A (H1N1), human papilloma virus (HPV), Ebola virus disease (EVD), Zika virus (ZIKV), and coronavirus (COVID-19). The IoMT-assisted POCT systems are capable enough to fill the gap between bioinformatics generation, big rapid analytics, and clinical validation. An optimized IoMT-assisted POCT will be useful in understanding the diseases progression, treatment decision, and evaluation of efficacy of prescribed therapy.
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Affiliation(s)
- Shikha Jain
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India
| | - Monika Nehra
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India; Department of Mechanical Engineering, UIET, Panjab University, Chandigarh, 160014, India
| | - Rajesh Kumar
- Department of Mechanical Engineering, UIET, Panjab University, Chandigarh, 160014, India
| | - Neeraj Dilbaghi
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India
| | - TonyY Hu
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Sandeep Kumar
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, 125001, India.
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Health Systems Engineering, Department of Natural Sciences, Florida Polytechnic University, Lakeland, FL, 33805-8531, United States.
| | - Chen-Zhong Li
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA, 70112, USA; Department of Biomedical Engineering, Florida International University, Miami, FL, 33174, USA.
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Oyewole AO, Barrass L, Robertson EG, Woltmann J, O’Keefe H, Sarpal H, Dangova K, Richmond C, Craig D. COVID-19 Impact on Diagnostic Innovations: Emerging Trends and Implications. Diagnostics (Basel) 2021; 11:182. [PMID: 33513988 PMCID: PMC7912626 DOI: 10.3390/diagnostics11020182] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 02/06/2023] Open
Abstract
Diagnostic testing remains the backbone of the coronavirus disease 2019 (COVID-19) response, supporting containment efforts to mitigate the outbreak. The severity of this crisis and increasing capacity issues associated with polymerase chain reaction (PCR)-based testing, accelerated the development of diagnostic solutions to meet demands for mass testing. The National Institute for Health Research (NIHR) Innovation Observatory is the national horizon scanning organization in England. Since March, the Innovation Observatory has applied advanced horizon scanning methodologies and tools to compile a diagnostic landscape, based upon data captured for molecular (MDx) and immunological (IDx) based diagnostics (commercialized/in development), for the diagnosis of SARS-CoV-2. In total we identified and tracked 1608 diagnostics, produced by 1045 developers across 54 countries. Our dataset shows the speed and scale in which diagnostics were produced and provides insights into key periods of development and shifts in trends between MDx and IDx solutions as the pandemic progressed. Stakeholders worldwide required timely and detailed intelligence to respond to major challenges, including testing capacity and regulatory issues. Our intelligence assisted UK stakeholders with assessing priorities and mitigation options throughout the pandemic. Here we present the global evolution of diagnostic innovations devised to meet changing needs, their regulation and trends across geographical regions, providing invaluable insights into the complexity of the COVID-19 phenomena.
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Affiliation(s)
- Anne O. Oyewole
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
| | - Lucy Barrass
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
| | - Emily G. Robertson
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
| | - James Woltmann
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
| | - Hannah O’Keefe
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
- Evidence Synthesis Group, Population Health Sciences Institute, Newcastle University, Newcastle NE2 4AX, UK
| | - Harsimran Sarpal
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
| | - Kim Dangova
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
| | - Catherine Richmond
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
- Evidence Synthesis Group, Population Health Sciences Institute, Newcastle University, Newcastle NE2 4AX, UK
| | - Dawn Craig
- National Institute for Health Research (NIHR) Innovation Observatory, Newcastle University, Newcastle NE4 5TG, UK; (L.B.); (E.G.R.); (J.W.); (H.O.); (H.S.); (K.D.); (C.R.); (D.C.)
- Evidence Synthesis Group, Population Health Sciences Institute, Newcastle University, Newcastle NE2 4AX, UK
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Limsakul P, Charupanit K, Moonla C, Jeerapan I. Advances in emergent biological recognition elements and bioelectronics for diagnosing COVID-19. EMERGENT MATERIALS 2021; 4:231-247. [PMID: 33718775 PMCID: PMC7937783 DOI: 10.1007/s42247-021-00175-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/26/2021] [Indexed: 05/04/2023]
Abstract
Coronaviruses pose a serious threat to public health. Tremendous efforts are dedicated to advance reliable and effective detection of coronaviruses. Currently, the coronavirus disease 2019 (COVID-19) diagnosis mainly relies on the detection of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) genetic materials by using reverse transcription-polymerase chain reaction (RT-PCR) assay. However, simpler and more rapid and reliable alternatives are needed to meet high demand during the pandemic. Biosensor-based diagnosis approaches become alternatives for selectively and rapidly detecting virus particles because of their biorecognition elements consisting of biomaterials that are specific to virus biomarkers. Here, we summarize biorecognition materials, including antibodies and antibody-like molecules, that are designed to recognize SARS-CoV-2 biomarkers and the advances of recently developed biosensors for COVID-19 diagnosis. The design of biorecognition materials or layers is crucial to maximize biosensing performances, such as high selectivity and sensitivity of virus detection. Additionally, the recent representative achievements in developing bioelectronics for sensing coronavirus are included. This review includes scholarly articles, mainly published in 2020 and early 2021. In addition to capturing the fast development in the fields of applied materials and biodiagnosis, the outlook of this rapidly evolving technology is summarized. Early diagnosis of COVID-19 could help prevent the spread of this contagious disease and provide significant information to medical teams to treat patients.
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Affiliation(s)
- Praopim Limsakul
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112 Thailand
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90112 Thailand
| | - Krit Charupanit
- Department of Biomedical Sciences and Biomedical Engineering, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, 90110 Thailand
| | - Chochanon Moonla
- School of Chemistry, Institute of Science, Suranaree University of Technology, 111, University Avenue, Nakhon Ratchasima, 30000 Thailand
| | - Itthipon Jeerapan
- Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112 Thailand
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90112 Thailand
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Affiliation(s)
- Thomas Usherwood
- Center for Biomedical Engineering, Brown University, Providence, RI, 02912, USA
| | - Lei Zhang
- Center for Biomedical Engineering, Brown University, Providence, RI, 02912, USA
| | - Anubhav Tripathi
- Center for Biomedical Engineering, Brown University, Providence, RI, 02912, USA.
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Modelling the test, trace and quarantine strategy to control the COVID-19 epidemic in the state of São Paulo, Brazil. Infect Dis Model 2020; 6:46-55. [PMID: 33235942 PMCID: PMC7677040 DOI: 10.1016/j.idm.2020.11.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/11/2020] [Accepted: 11/14/2020] [Indexed: 02/06/2023] Open
Abstract
Testing for detecting the infection by SARS-CoV-2 is the bridge between the lockdown and the opening of society. In this paper we modelled and simulated a test-trace-and-quarantine strategy to control the COVID-19 outbreak in the State of São Paulo, Brasil. The State of São Paulo failed to adopt an effective social distancing strategy, reaching at most 59% in late March and started to relax the measures in late June, dropping to 41% in 08 August. Therefore, São Paulo relies heavily on a massive testing strategy in the attempt to control the epidemic. Two alternative strategies combined with economic evaluations were simulated. One strategy included indiscriminately testing the entire population of the State, reaching more than 40 million people at a maximum cost of 2.25 billion USD, that would reduce the total number of cases by the end of 2020 by 90%. The second strategy investigated testing only symptomatic cases and their immediate contacts – this strategy reached a maximum cost of 150 million USD but also reduced the number of cases by 90%. The conclusion is that if the State of São Paulo had decided to adopt the simulated strategy on April the 1st, it would have been possible to reduce the total number of cases by 90% at a cost of 2.25 billion US dollars for the indiscriminate strategy but at a much smaller cost of 125 million US dollars for the selective testing of symptomatic cases and their contacts.
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