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Liu B, Cheng Y, Pan X, Yang W, Li X, Wang L, Ye H, Pan T. Multicolor-Assay-on-a-Chip Processed by Robotic Operation (MACpro) with Improved Diagnostic Accuracy for Field-Deployable Detection. Anal Chem 2024; 96:6634-6642. [PMID: 38622069 DOI: 10.1021/acs.analchem.3c05918] [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: 04/17/2024]
Abstract
The ability to deploy decentralized laboratories with autonomous and reliable disease diagnosis holds the potential to deliver accessible healthcare services for public safety. While microfluidic technologies provide precise manipulation of small fluid volumes with improved assay performance, their limited automation and versatility confine them to laboratories. Herein, we report the utility of multicolor assay-on-a-chip processed by robotic operation (MACpro), to address this unmet need. The MACpro platform comprises a robot-microfluidic interface and an eye-in-hand module that provides flexible yet stable actions to execute tasks in a programmable manner, such as the precise manipulation of the microfluidic chip along with different paths. Notably, MACpro shows improved detection performance by integrating the microbead-based antibody immobilization with enhanced target recognition and multicolor sensing via Cu2+-catalyzed plasmonic etching of gold nanorods for rapid and sensitive analyte quantification. Using interferon-gamma as an example, we demonstrate that MACpro completes a sample-to-answer immunoassay within 30 min and achieves a 10-fold broader dynamic range and a 10-fold lower detection limit compared to standard enzyme-linked immunosorbent assays (0.66 vs 5.2 pg/mL). MACpro extends the applications beyond traditional laboratories and presents an automated solution to expand diagnostic capacity in diverse settings.
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Affiliation(s)
- Binyao Liu
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Center for Intelligent Medical Equipment and Devices, Institute for Innovative Medical Devices, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, P.R. China
| | - Yixin Cheng
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Center for Intelligent Medical Equipment and Devices, Institute for Innovative Medical Devices, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, P.R. China
| | - Xiang Pan
- Center for Intelligent Medical Equipment and Devices, Institute for Innovative Medical Devices, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, P.R. China
- Nano Science and Technology Institute, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, P.R. China
| | - Wen Yang
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Center for Intelligent Medical Equipment and Devices, Institute for Innovative Medical Devices, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, P.R. China
| | - Xiangpeng Li
- College of Mechanical and Electrical Engineering, Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Lele Wang
- Shenzhen Shaanxi Coal Hi-tech Research Institute Co., Ltd, Shenzhen 518107, P.R. China
| | - Haihang Ye
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Center for Intelligent Medical Equipment and Devices, Institute for Innovative Medical Devices, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, P.R. China
- Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Tingrui Pan
- School of Biomedical Engineering, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
- Center for Intelligent Medical Equipment and Devices, Institute for Innovative Medical Devices, Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu 215123, P.R. China
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
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Okamoto S, Nagai M, Shibata T, Ukita Y. Automatic microdispenser-integrated multiplex enzyme-linked immunosorbent assay device with autonomously driven centrifugal microfluidic system. RSC Adv 2024; 14:13827-13836. [PMID: 38681832 PMCID: PMC11047056 DOI: 10.1039/d4ra02656j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 05/01/2024] Open
Abstract
In this study, we established the control and design theory of an autonomously driven dispenser at a steady rotation speed and proposed a dispenser-integrated multiplex enzyme-linked immunosorbent assay (ELISA) device. In establishing the theory of the dispenser, we estimated the flow rate in the dispenser and the applied pressure onto the passive valves, so that the suitable burst pressure of the valves and flow rate could be designed. The dispenser-integrated multiplex ELISA device has the potential to perform flow control for executing an ELISA of 6 samples/standards per chip or 18 samples/standards per compact disk by just steadily rotating a chip. In the immunoassay evaluation of the device using mouse IgG detection, it was confirmed that the device could assay 5 μL of several standards in just 30 min without nonspecific reactions, and although this system has a high limit of detection (LOD, 63.4-164 pg mL-1) it is equal to that of manual assay with a titer plate. The device can be fabricated by transferring the microchannel pattern from a mold without complex assembly or alignment, and it can control the liquid operation by just steadily rotating. Thus, the device system developed will contribute to reducing the cost of fabricating chips and control equipment for ELISA systems. Consequently, a compact, portable, and low-cost ELISA system for point-of-care testing is expected to be realized.
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Affiliation(s)
- Shunya Okamoto
- Toyohashi University of Technology, Department of Mechanical Engineering Japan
| | - Moeto Nagai
- Toyohashi University of Technology, Department of Mechanical Engineering Japan
- Toyohashi University of Technology, Institute for Research on Next-generation Semiconductor and Sensing Science (IRES2) Japan
| | - Takayuki Shibata
- Toyohashi University of Technology, Department of Mechanical Engineering Japan
| | - Yoshiaki Ukita
- University of Yamanashi, Graduate Faculty of Interdisciplinary Research Japan
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Bi H, You R, Bian X, Li P, Zhao X, You Z. A magnetic control enrichment technique combined with terahertz metamaterial biosensor for detecting SARS-CoV-2 spike protein. Biosens Bioelectron 2024; 243:115763. [PMID: 37890389 DOI: 10.1016/j.bios.2023.115763] [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: 08/06/2023] [Revised: 10/12/2023] [Accepted: 10/15/2023] [Indexed: 10/29/2023]
Abstract
The highly contagious SARS-CoV-2 virus, responsible for the COVID-19 pandemic continues to pose significant challenges to public health. Developing new methods for early detection and diagnosis is crucial in combatting the disease, mitigating its impact and be prepared for future challenges in pandemic diseases. In this study, we propose a terahertz (THz) biosensing technology that capitalizes on the properties of THz metamaterial in conjunction with magnetic nanoparticles. This approach can accurately identify the SARS-CoV-2 spike protein by pinpointing its location on the THz resonance sources grooved surface. The magnetic nanoparticles are employed to selectively bind with target molecules, and migrate towards the THz metamaterial unit cell when exposed to an applied magnetic field. The presence of target molecules in to the metamaterial variation in the frequency, amplitude, and phase of the resonance response, thus enabling swift, accurate and sensitive detection. To assess the effectiveness of the proposed technique, we have conducted a comparative analysis between real samples on platforms controlled by magnetic manipulation and those without the control. It was confirmed that the proposed THz sensing method demonstrated a linear detection range spanning from 0.005 ng mL-1 to 1000 ng mL-1 with a detection limit of 0.002 ng mL-1. Furthermore, it exhibited a frequency shift of 24 GHz and a stability index of 95%. The THz biosensing technique may pave a new avenue in identifying and preempting the spread of potential pandemic diseases.
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Affiliation(s)
- Hao Bi
- Beijing Laboratory of Biomedical Detection Technology and Instrument, Beijing Information Science & Technology University, Beijing, 10029, PR China; School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100029, PR China
| | - Rui You
- Beijing Laboratory of Biomedical Detection Technology and Instrument, Beijing Information Science & Technology University, Beijing, 10029, PR China; School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100029, PR China.
| | - Xiaomeng Bian
- Beijing Laboratory of Biomedical Detection Technology and Instrument, Beijing Information Science & Technology University, Beijing, 10029, PR China; School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100029, PR China
| | - Peng Li
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, PR China; Key Laboratory of Smart Microsystem, Ministry of Education, Tsinghua University, Beijing, 100084, PR China; Beijing Advanced Innovation Center for Integrated Circuits, Beijing, 100084, PR China.
| | - Xiaoguang Zhao
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, PR China; Key Laboratory of Smart Microsystem, Ministry of Education, Tsinghua University, Beijing, 100084, PR China; Beijing Advanced Innovation Center for Integrated Circuits, Beijing, 100084, PR China.
| | - Zheng You
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing, 100084, PR China; Key Laboratory of Smart Microsystem, Ministry of Education, Tsinghua University, Beijing, 100084, PR China; Beijing Advanced Innovation Center for Integrated Circuits, Beijing, 100084, PR China
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Yoo KM, Fan KC, Hlaing M, Jain S, Ning S, An Y, Chen RT. Lab-on-a-chip optical biosensor platform: a micro-ring resonator integrated with a near-infrared Fourier transform spectrometer. OPTICS LETTERS 2023; 48:5371-5374. [PMID: 37831870 DOI: 10.1364/ol.492172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023]
Abstract
In this paper, we demonstrated the design and experimental results of the near-infrared lab-on-a-chip optical biosensor platform that monolithically integrates the MRR and the on-chip spectrometer on the silicon-on-insulator (SOI) wafer, which can eliminate the external optical spectrum analyzer for scanning the wavelength spectrum. The symmetric add-drop MRR biosensor is designed to have a free spectral range (FSR) of ∼19 nm and a bulk sensitivity of ∼73 nm/RIU; then the drop-port output resonance peaks are reconstructed from the integrated spatial-heterodyne Fourier transform spectrometer (SHFTS) with the spectral resolution of ∼3.1 nm and the bandwidth of ∼50 nm, which results in the limit of detection of 0.042 RIU.
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Tsounidi D, Angelopoulou M, Petrou P, Raptis I, Kakabakos S. Simultaneous Detection of SARS-CoV-2 Nucleoprotein and Receptor Binding Domain by a Multi-Area Reflectance Spectroscopy Sensor. BIOSENSORS 2023; 13:865. [PMID: 37754099 PMCID: PMC10526254 DOI: 10.3390/bios13090865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/22/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023]
Abstract
The COVID-19 pandemic has emphasized the urgent need for point-of-care methods suitable for the rapid and reliable diagnosis of viral infections. To address this demand, we report the rapid, label-free simultaneous determination of two SARS-CoV-2 proteins, namely, the nucleoprotein and the receptor binding domain peptide of S1 protein, by implementing a bioanalytical device based on Multi Area Reflectance Spectroscopy. Simultaneous detection of these two proteins is achieved by using silicon chips with adjacent areas of different silicon dioxide thickness on top, each of which is modified with an antibody specific to either the nucleoprotein or the receptor binding domain of SARS-CoV-2. Both areas were illuminated by a single probe that also collected the reflected light, directing it to a spectrometer. The online conversion of the combined reflection spectra from the two silicon dioxide areas into the respective adlayer thickness enabled real-time monitoring of immunoreactions taking place on the two areas. Several antibodies have been tested to define the pair, providing the higher specific signal following a non-competitive immunoassay format. Biotinylated secondary antibodies and streptavidin were used to enhance the specific signal. Both proteins were detected in less than 12 min, with detection limits of 1.0 ng/mL. The assays demonstrated high repeatability with intra- and inter-assay coefficients of variation lower than 10%. Moreover, the recovery of both proteins from spiked samples prepared in extraction buffer from a commercial self-test kit for SARS-CoV-2 collection from nasopharyngeal swabs ranged from 90.0 to 110%. The short assay duration in combination with the excellent analytical performance and the compact instrument size render the proposed device and assay suitable for point-of-care applications.
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Affiliation(s)
- Dimitra Tsounidi
- Immunoassays-Immunosensors Lab, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, 15341 Aghia Paraskevi, Greece; (D.T.); (M.A.); (P.P.)
| | - Michailia Angelopoulou
- Immunoassays-Immunosensors Lab, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, 15341 Aghia Paraskevi, Greece; (D.T.); (M.A.); (P.P.)
| | - Panagiota Petrou
- Immunoassays-Immunosensors Lab, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, 15341 Aghia Paraskevi, Greece; (D.T.); (M.A.); (P.P.)
| | - Ioannis Raptis
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, 15341 Aghia Paraskevi, Greece;
| | - Sotirios Kakabakos
- Immunoassays-Immunosensors Lab, Institute of Nuclear and Radiological Sciences and Technology, Energy and Safety, NCSR “Demokritos”, 15341 Aghia Paraskevi, Greece; (D.T.); (M.A.); (P.P.)
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Ning S, Chang HC, Fan KC, Hsiao PY, Feng C, Shoemaker D, Chen RT. A point-of-care biosensor for rapid detection and differentiation of COVID-19 virus (SARS-CoV-2) and influenza virus using subwavelength grating micro-ring resonator. APPLIED PHYSICS REVIEWS 2023; 10:021410. [PMID: 37265478 PMCID: PMC10228026 DOI: 10.1063/5.0146079] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/05/2023] [Indexed: 06/03/2023]
Abstract
In the context of continued spread of coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 and the emergence of new variants, the demand for rapid, accurate, and frequent detection is increasing. Moreover, the new predominant strain, Omicron variant, manifests more similar clinical features to those of other common respiratory infections. The concurrent detection of multiple potential pathogens helps distinguish SARS-CoV-2 infection from other diseases with overlapping symptoms, which is significant for providing tailored treatment to patients and containing the outbreak. Here, we report a lab-on-a-chip biosensing platform for SARS-CoV-2 detection based on the subwavelength grating micro-ring resonator. The sensing surface is functionalized by specific antibody against SARS-CoV-2 spike protein, which could produce redshifts of resonant peaks by antigen-antibody combination, thus achieving quantitative detection. Additionally, the sensor chip is integrated with a microfluidic chip featuring an anti-backflow Y-shaped structure that enables the concurrent detection of two analytes. In this study, we realized the detection and differentiation of COVID-19 and influenza A H1N1. Experimental results indicate that the limit of detection of our device reaches 100 fg/ml (1.31 fM) within 15 min detecting time, and cross-reactivity tests manifest the specificity of the optical diagnostic assay. Furthermore, the integrated packaging and streamlined workflow facilitate its use for clinical applications. Thus, the biosensing platform presents a promising approach for attaining highly sensitive, selective, multiplexed, and quantitative point-of-care diagnosis and distinction between COVID-19 and influenza.
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Affiliation(s)
- Shupeng Ning
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Hao-Chen Chang
- Omega Optics, Inc., 8500 Shoal Creek Blvd., Austin, Texas 78757, USA
| | - Kang-Chieh Fan
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Po-Yu Hsiao
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Chenghao Feng
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Devan Shoemaker
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Ray T. Chen
- Author to whom correspondence should be addressed:
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Adam H, Gopinath SCB, Md Arshad MK, Adam T, Parmin NA, Husein I, Hashim U. An update on pathogenesis and clinical scenario for Parkinson's disease: diagnosis and treatment. 3 Biotech 2023; 13:142. [PMID: 37124989 PMCID: PMC10134733 DOI: 10.1007/s13205-023-03553-8] [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: 01/04/2023] [Accepted: 04/04/2023] [Indexed: 05/02/2023] Open
Abstract
In severe cases, Parkinson's disease causes uncontrolled movements known as motor symptoms such as dystonia, rigidity, bradykinesia, and tremors. Parkinson's disease also causes non-motor symptoms such as insomnia, constipation, depression and hysteria. Disruption of dopaminergic and non-dopaminergic neural networks in the substantia nigra pars compacta is a major cause of motor symptoms in Parkinson's disease. Furthermore, due to the difficulty of clinical diagnosis of Parkinson's disease, it is often misdiagnosed, highlighting the need for better methods of detection. Treatment of Parkinson's disease is also complicated due to the difficulties of medications passing across the blood-brain barrier. Moreover, the conventional methods fail to solve the aforementioned issues. As a result, new methods are needed to detect and treat Parkinson's disease. Improved diagnosis and treatment of Parkinson's disease can help avoid some of its devastating symptoms. This review explores how nanotechnology platforms, such as nanobiosensors and nanomedicine, have improved Parkinson's disease detection and treatment. Nanobiosensors integrate science and engineering principles to detect Parkinson's disease. The main advantages are their low cost, portability, and quick and precise analysis. Moreover, nanotechnology can transport medications in the form of nanoparticles across the blood-brain barrier. However, because nanobiosensors are a novel technology, their use in biological systems is limited. Nanobiosensors have the potential to disrupt cell metabolism and homeostasis, changing cellular molecular profiles and making it difficult to distinguish sensor-induced artifacts from fundamental biological phenomena. In the treatment of Parkinson's disease, nanoparticles, on the other hand, produce neurotoxicity, which is a challenge in the treatment of Parkinson's disease. Techniques must be developed to distinguish sensor-induced artifacts from fundamental biological phenomena and to reduce the neurotoxicity caused by nanoparticles.
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Affiliation(s)
- Hussaini Adam
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, 01000 Perlis, Malaysia
| | - Subash C. B. Gopinath
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, 01000 Perlis, Malaysia
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Arau, 02600 Perlis, Malaysia
- Micro System Technology, Centre of Excellence (CoE), Universiti Malaysia Perlis (UniMAP), Pauh Campus, Arau, 02600 Perlis, Malaysia
| | - M. K. Md Arshad
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, 01000 Perlis, Malaysia
- Faculty of Electronic Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Pauh Campus, Arau, 02600 Perlis, Malaysia
| | - Tijjani Adam
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, 01000 Perlis, Malaysia
- Micro System Technology, Centre of Excellence (CoE), Universiti Malaysia Perlis (UniMAP), Pauh Campus, Arau, 02600 Perlis, Malaysia
- Faculty of Electronic Engineering & Technology, Universiti Malaysia Perlis (UniMAP), Pauh Campus, Arau, 02600 Perlis, Malaysia
| | - N. A. Parmin
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, 01000 Perlis, Malaysia
| | - Irzaman Husein
- Department of Physics, Faculty of Mathematics and Natural Sciences, IPB University, Bogor-Indonesia, Indonesia
| | - Uda Hashim
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, 01000 Perlis, Malaysia
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Taha BA, Al Mashhadany Y, Al-Jubouri Q, Rashid ARBA, Luo Y, Chen Z, Rustagi S, Chaudhary V, Arsad N. Next-generation nanophotonic-enabled biosensors for intelligent diagnosis of SARS-CoV-2 variants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163333. [PMID: 37028663 PMCID: PMC10076079 DOI: 10.1016/j.scitotenv.2023.163333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 04/15/2023]
Abstract
Constantly mutating SARS-CoV-2 is a global concern resulting in COVID-19 infectious waves from time to time in different regions, challenging present-day diagnostics and therapeutics. Early-stage point-of-care diagnostic (POC) biosensors are a crucial vector for the timely management of morbidity and mortalities caused due to COVID-19. The state-of-the-art SARS-CoV-2 biosensors depend upon developing a single platform for its diverse variants/biomarkers, enabling precise detection and monitoring. Nanophotonic-enabled biosensors have emerged as 'one platform' to diagnose COVID-19, addressing the concern of constant viral mutation. This review assesses the evolution of current and future variants of the SARS-CoV-2 and critically summarizes the current state of biosensor approaches for detecting SARS-CoV-2 variants/biomarkers employing nanophotonic-enabled diagnostics. It discusses the integration of modern-age technologies, including artificial intelligence, machine learning and 5G communication with nanophotonic biosensors for intelligent COVID-19 monitoring and management. It also highlights the challenges and potential opportunities for developing intelligent biosensors for diagnosing future SARS-CoV-2 variants. This review will guide future research and development on nano-enabled intelligent photonic-biosensor strategies for early-stage diagnosing of highly infectious diseases to prevent repeated outbreaks and save associated human mortalities.
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Affiliation(s)
- Bakr Ahmed Taha
- Photonics Technology Laboratory, Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia UKM, 43600 Bangi, Malaysia.
| | - Yousif Al Mashhadany
- Department of Electrical Engineering, College of Engineering, University of Anbar, Anbar 00964, Iraq
| | - Qussay Al-Jubouri
- Department of Communication Engineering, University of Technology, Baghdad, Iraq
| | - Affa Rozana Bt Abdul Rashid
- Faculty of Science and Technology, University Sains Islam Malaysia, Bandar Baru Nilai, 71800 Nilai, Negeri Sembilan, Malaysia
| | - Yunhan Luo
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, College of Science and Engineering, Jinan University, Guangzhou 510632, China
| | - Zhe Chen
- Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Jinan University Guangzhou, 510632, China
| | - Sarvesh Rustagi
- School of Applied and Life Sciences, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Vishal Chaudhary
- Department of Physics, Bhagini Nivedita College, University of Delhi, New Delhi 110045, India.
| | - Norhana Arsad
- Photonics Technology Laboratory, Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia UKM, 43600 Bangi, Malaysia.
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Zheng Y, Song X, Fredj Z, Bian S, Sawan M. Challenges and perspectives of multi-virus biosensing techniques: A review. Anal Chim Acta 2023; 1244:340860. [PMID: 36737150 PMCID: PMC9868144 DOI: 10.1016/j.aca.2023.340860] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/17/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023]
Abstract
In the context of globalization, individuals have an increased chance of being infected by multiple viruses simultaneously, thereby highlighting the importance of developing multiplexed devices. In addition to sufficient sensitivity and rapid response, multi-virus sensing techniques are expected to offer additional advantages including high throughput, one-time sampling for parallel analysis, and full automation with data visualization. In this paper, we review the optical, electrochemical, and mechanical platforms that enable multi-virus biosensing. The working mechanisms of each platform, including the detection principle, transducer configuration, bio-interface design, and detected signals, are reviewed. The advantages and limitations, as well as the challenges in implementing various detection strategies in real-life scenarios, were evaluated. Future perspectives on multiplexed biosensing techniques are critically discussed. Earlier access to multi-virus biosensors will efficiently serve for immediate pandemic control, such as in emerging SARS-CoV-2 and monkeypox cases.
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Affiliation(s)
- Yuqiao Zheng
- Zhejiang University, Hangzhou, 310058, Zhejiang, China,Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, China
| | - Xixi Song
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, China
| | - Zina Fredj
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, China
| | - Sumin Bian
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, China.
| | - Mohamad Sawan
- Research Center for Industries of the Future, Westlake University, Hangzhou, Zhejiang, 310030, China.
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Li F, Hong J, Guan C, Chen K, Xie Y, Wu Q, Chen J, Deng B, Shen J, Liu X, Hu R, Zhang Y, Chen Y, Zhu J. Affinity Exploration of SARS-CoV-2 RBD Variants to mAb-Functionalized Plasmonic Metasurfaces for Label-Free Immunoassay Boosting. ACS NANO 2023; 17:3383-3393. [PMID: 36630157 PMCID: PMC9847236 DOI: 10.1021/acsnano.2c08153] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 01/03/2023] [Indexed: 06/09/2023]
Abstract
Plasmonic metasurfaces (PMs) functionalized with the monoclonal antibody (mAb) are promising biophotonic sensors for biomolecular interaction analysis and convenient immunoassay of various biomarkers, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants. Previous PM biosensing suffers from the slow affinity detection rate and lack of sufficient immunoassay studies on various SARS-CoV-2 variants. Here, we develop a high-efficiency affinity testing method based on label-free PM sensors with mAbs and demonstrate their binding characteristics to 12 spike receptor binding domain (RBD) variants of SARS-CoV-2. In addition to the research of plasmonic near-field influence on surface biomolecule sensing, we provide a comprehensive report about the Langmuir binding equilibrium of molecular kinetics between 12 SARS-CoV-2 RBD variants and mAb-functionalized PMs, which plays a crucial role in label-free immunosensing. A high-affinity mAb can be combined with the highly sensitive propagating plasmonic mode to boost the detection of SARS-CoV-2 variants. Owing to a better understanding of molecular dynamics on PMs, we develop an ultrasensitive biosensor of the SARS-CoV-2 Omicron variant. The experiments show great distinguishment of P < 0.0001 from respiratory diseases induced by other viruses, and the limit of detection is 2 orders smaller than the commercial colloidal gold immunoassay. Our study shows the label-free biosensing by low-cost wafer-scale PMs, which will provide essential information on biomolecular interaction and facilitate high-precision point-of-care testing for emerging SARS-CoV-2 variants in the future.
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Affiliation(s)
- Fajun Li
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
| | - Junping Hong
- State Key Laboratory of Molecular Vaccinology and
Molecular Diagnostics and National Institute of Diagnostics and Vaccine Development in
Infectious Diseases, School of Life Sciences, School of Public Health, Xiamen
University, Xiamen361005, China
| | - Chaoheng Guan
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
| | - Kaiyun Chen
- State Key Laboratory of Molecular Vaccinology and
Molecular Diagnostics and National Institute of Diagnostics and Vaccine Development in
Infectious Diseases, School of Life Sciences, School of Public Health, Xiamen
University, Xiamen361005, China
| | - Yinong Xie
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
| | - Qian Wu
- State Key Laboratory of Molecular Vaccinology and
Molecular Diagnostics and National Institute of Diagnostics and Vaccine Development in
Infectious Diseases, School of Life Sciences, School of Public Health, Xiamen
University, Xiamen361005, China
| | - Junjie Chen
- Analysis and Measurement Center, School of
Pharmaceutical Science, Xiamen University, Xiamen361003,
China
| | - Baichang Deng
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
| | - Jiaqing Shen
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
| | - Xueying Liu
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
| | - Rongsheng Hu
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
| | - Yulong Zhang
- Pen-Tung Sah Institute of Micro-Nano Science and
Technology, Xiamen University, Xiamen361005,
China
| | - Yixin Chen
- State Key Laboratory of Molecular Vaccinology and
Molecular Diagnostics and National Institute of Diagnostics and Vaccine Development in
Infectious Diseases, School of Life Sciences, School of Public Health, Xiamen
University, Xiamen361005, China
| | - Jinfeng Zhu
- Institute of Electromagnetics and Acoustics and Key
Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen
University, Xiamen361005, China
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11
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Redolat J, Camarena-Pérez M, Griol A, Kovylina M, Xomalis A, Baumberg JJ, Martínez A, Pinilla-Cienfuegos E. Accurate Transfer of Individual Nanoparticles onto Single Photonic Nanostructures. ACS APPLIED MATERIALS & INTERFACES 2023; 15:3558-3565. [PMID: 36538469 PMCID: PMC9869328 DOI: 10.1021/acsami.2c13633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Controlled integration of metallic nanoparticles (NPs) onto photonic nanostructures enables the realization of complex devices for extreme light confinement and enhanced light-matter interaction. For instance, such NPs could be massively integrated on metal plates to build nanoparticle-on-mirror (NPoM) nanocavities or photonic integrated waveguides (WGs) to build WG-driven nanoantennas. However, metallic NPs are usually deposited via drop-casting, which prevents their accurate positioning. Here, we present a methodology for precise transfer and positioning of individual NPs onto different photonic nanostructures. Our method is based on soft lithography printing that employs elastomeric stamp-assisted transfer of individual NPs onto a single nanostructure. It can also parallel imprint many individual NPs with high throughput and accuracy in a single step. Raman spectroscopy confirms enhanced light-matter interactions in the resulting NPoM-based nanophotonic devices. Our method mixes top-down and bottom-up nanofabrication techniques and shows the potential of building complex photonic nanodevices for multiple applications ranging from enhanced sensing and spectroscopy to signal processing.
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Affiliation(s)
- Javier Redolat
- Nanophotonics
Technology Center, Universitat Politècnica
de València, ValenciaE46022, Spain
| | - María Camarena-Pérez
- Nanophotonics
Technology Center, Universitat Politècnica
de València, ValenciaE46022, Spain
| | - Amadeu Griol
- Nanophotonics
Technology Center, Universitat Politècnica
de València, ValenciaE46022, Spain
| | - Miroslavna Kovylina
- Nanophotonics
Technology Center, Universitat Politècnica
de València, ValenciaE46022, Spain
| | - Angelos Xomalis
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, CambridgeCB3 0HE, U.K.
- Laboratory
for Mechanics of Materials and Nanostructures, Empa, Swiss Federal Laboratories for Materials Science and Technology, Thun3602, Switzerland
| | - Jeremy J. Baumberg
- NanoPhotonics
Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, JJ Thompson Avenue, CambridgeCB3 0HE, U.K.
| | - Alejandro Martínez
- Nanophotonics
Technology Center, Universitat Politècnica
de València, ValenciaE46022, Spain
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12
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Marwah H, Pant J, Yadav J, Shah K, Dewangan HK. Biosensor Detection of COVID-19 in Lung Cancer: Hedgehog and Mucin Signaling Insights. Curr Pharm Des 2023; 29:3442-3457. [PMID: 38270161 DOI: 10.2174/0113816128276948231204111531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/25/2023] [Indexed: 01/26/2024]
Abstract
Coronavirus disease 2019 is a global pandemic, particularly affecting individuals with pre-existing lung conditions and potentially leading to pulmonary fibrosis. Age and healthcare system limitations further amplify susceptibility to both diseases, especially in low- and middle-income countries. The intricate relationship between Coronavirus disease 2019 and lung cancer highlights their clinical implications and the potential for early detection through biosensor techniques involving hedgehog and mucin signaling. This study highlights the connection between Coronavirus disease 2019 and lung cancer, focusing on the mucosa, angiotensin- altering enzyme 2 receptors, and their impact on the immune system. It details the inflammatory mechanisms triggered by Coronavirus disease 2019, which can result in pulmonary fibrosis and influence the cancer microenvironment. Various cytokines like Interleukins-6 and Tumor Necrosis Factor-alpha are examined for their roles in both diseases. Moreover, the review delves into the Hedgehog signaling pathways and their significance in lung cancer, particularly their influence on embryonic cell proliferation and tissue integrity. Mucin signaling is another vital aspect, highlighting the diverse mucin expression patterns in respiratory epithelial tissues and their potential as biomarkers. The review concludes with insights into diagnostic imaging techniques like chest computed tomography, Positron Emission Tomography and Computed Tomography, and Magnetic Resonance Imaging for early lung cancer detection, emphasizing the crucial role of biosensors in identifying specific biomarkers for early disease detection. This review provides a comprehensive overview of the clinical impact of Coronavirus disease 2019 on lung cancer patients and the potential for biosensors utilizing hedgehog and mucin signaling for early detection. It underscores the ongoing need for research and innovation to address these critical healthcare challenges.
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Affiliation(s)
- Harneet Marwah
- University Institute of Pharma Sciences (UIPS), Chandigarh University, NH-95 Chandigarh Ludhiana Highway, Mohali, Punjab, India
| | - Janmejay Pant
- University Institute of Pharma Sciences (UIPS), Chandigarh University, NH-95 Chandigarh Ludhiana Highway, Mohali, Punjab, India
| | - Jiten Yadav
- University Institute of Pharma Sciences (UIPS), Chandigarh University, NH-95 Chandigarh Ludhiana Highway, Mohali, Punjab, India
| | - Kamal Shah
- Institute of Pharmaceutical Research (IPR), GLA University Mathura, NH-2 Delhi Mathura Road, Po-CHaumuhan, Uttar Pradesh, India
| | - Hitesh Kumar Dewangan
- University Institute of Pharma Sciences (UIPS), Chandigarh University, NH-95 Chandigarh Ludhiana Highway, Mohali, Punjab, India
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13
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Yakoubi A, Dhafer CEB. Advanced Plasmonic Nanoparticle-Based Techniques for the Prevention, Detection, and Treatment of Current COVID-19. PLASMONICS (NORWELL, MASS.) 2022; 18:311-347. [PMID: 36588744 PMCID: PMC9786532 DOI: 10.1007/s11468-022-01754-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 11/20/2022] [Indexed: 06/16/2023]
Abstract
Coronavirus is an ongoing global pandemic caused by severe acute respiratory syndrome coronavirus 2. Coronavirus disease 2019 known as COVID-19 is the worst pandemic since World War II. The outbreak of COVID-19 had a significant repercussion on the health, economy, politics, and environment, making coronavirus-related issues more complicated and becoming one of the most challenging pandemics of the last century with deadly outcomes and a high rate of the reproduction number. There are thousands of different types - or variants - of COVID circulating across the world. Viruses mutate all the time; it emphasizes the critical need for the designing of efficient vaccines to prevent virus infection, early and fast diagnosis, and effective antiviral and protective therapeutics. In this regard, the use of nanotechnology offers new opportunities for the development of novel strategies in terms of prevention, diagnosis, and treatment of COVID-19. This review presents an outline of the platforms developed using plasmonic nanoparticles in the detection, treatment, and prevention of SARS-CoV-2. We select the best strategies in each of these approaches. The properties of metallic plasmon NPs and their relevance in the development of novel point-of-care diagnosis approaches for COVID-19 are highlighted. Also, we discuss the current challenges and the future perspectives looking towards the clinical translation and the commercial aspects of nanotechnology and plasmonic NP-based diagnostic tools and therapy to fight COVID-19 pandemic. The article could be of significance for researchers dedicated to developing suitable plasmonic detection tools and therapy approaches for COVID-19 viruses and future pandemics.
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Affiliation(s)
- Afef Yakoubi
- Laboratory of Hetero-organic Compounds and Nanostructured Materials, Chemistry Department, Faculty of Sciences Bizerte, University of Carthage, LR 18 ES11, 7021 Bizerte, Tunisia
| | - Cyrine El Baher Dhafer
- Chemistry Department College of Science, Jouf University, P.O Box: 2014, Sakaka, Saudi Arabia
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14
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Mostafa M, Barhoum A, Sehit E, Gewaid H, Mostafa E, Omran MM, Abdalla MS, Abdel-Haleem FM, Altintas Z, Forster RJ. Current trends in COVID-19 diagnosis and its new variants in physiological fluids: Surface antigens, antibodies, nucleic acids, and RNA sequencing. Trends Analyt Chem 2022; 157:116750. [PMID: 36060607 PMCID: PMC9425703 DOI: 10.1016/j.trac.2022.116750] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 06/21/2022] [Accepted: 07/24/2022] [Indexed: 12/15/2022]
Abstract
Rapid, highly sensitive, and accurate virus circulation monitoring techniques are critical to limit the spread of the virus and reduce the social and economic burden. Therefore, point-of-use diagnostic devices have played a critical role in addressing the outbreak of COVID-19 (SARS-CoV-2) viruses. This review provides a comprehensive overview of the current techniques developed for the detection of SARS-CoV-2 in various body fluids (e.g., blood, urine, feces, saliva, tears, and semen) and considers the mutations (i.e., Alpha, Beta, Gamma, Delta, Omicron). We classify and comprehensively discuss the detection methods depending on the biomarker measured (i.e., surface antigen, antibody, and nucleic acid) and the measurement techniques such as lateral flow immunoassay (LFIA), enzyme-linked immunosorbent assay (ELISA), reverse transcriptase-polymerase chain reaction (RT-PCR), reverse transcription loop-mediated isothermal amplification (RT-LAMP), microarray analysis, clustered regularly interspaced short palindromic repeats (CRISPR) and biosensors. Finally, we addressed the challenges of rapidly identifying emerging variants, detecting the virus in the early stages of infection, the detection sensitivity, selectivity, and specificity, and commented on how these challenges can be overcome in the future.
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Affiliation(s)
- Menna Mostafa
- NanoStruc Research Group, Chemistry Department, Faculty of Science, Helwan University, 11795, Cairo, Egypt
| | - Ahmed Barhoum
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, D09 V209, Dublin, Ireland
| | - Ekin Sehit
- Institute of Chemistry, Technical University of Berlin, 10623, Berlin, Germany
- Institute of Materials Science, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Hossam Gewaid
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, The University of Dublin, 152-160 Pearse St, Dublin, D02R590, Ireland
| | - Eslam Mostafa
- Borg Pharmaceutical Industries, Refaat Hassan St, Al Abageyah, El-Khalifa, Cairo Governorate, 16, Egypt
| | - Mohamed M Omran
- Chemistry Department, Faculty of Science, Helwan University, 11795, Cairo, Egypt
| | - Mohga S Abdalla
- Chemistry Department, Faculty of Science, Helwan University, 11795, Cairo, Egypt
| | - Fatehy M Abdel-Haleem
- Chemistry Department, Faculty of Science, Cairo University, 12613, Giza, Egypt
- Center for Hazards Mitigation, Environmental Studies and Research (CHMESR), Cairo University, 12613, Giza, Egypt
| | - Zeynep Altintas
- Institute of Chemistry, Technical University of Berlin, 10623, Berlin, Germany
- Institute of Materials Science, Faculty of Engineering, Kiel University, 24143, Kiel, Germany
| | - Robert J Forster
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, D09 V209, Dublin, Ireland
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15
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Escandell L, Álvarez-Rodríguez C, Barreda Á, Zaera R, García-Cámara B. All-Optical Nanosensor for Displacement Detection in Mechanical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4107. [PMID: 36432392 PMCID: PMC9696814 DOI: 10.3390/nano12224107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/04/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
In this paper, we propose the design of an optical system based on two parallel suspended silicon nanowires that support a range of optical resonances that efficiently confine and scatter light in the infrared range as the base of an all-optical displacement sensor. The effects of the variation of the distance between the nanowires are analyzed. The simulation models are designed by COMSOL Multiphysics software, which is based on the finite element method. The diameter of the nanocylinders (d = 140 nm) was previously optimized to achieve resonances at the operating wavelengths (λ = 1064 nm and 1310 nm). The results pointed out that a detectable change in their resonant behavior and optical interaction was achieved. The proposed design aims to use a simple light source using a commercial diode laser and simplify the readout systems with a high sensitivity of 1.1 × 106 V/m2 and 1.14 × 106 V/m2 at 1064 nm and 1310 nm, respectively. The results may provide an opportunity to investigate alternative designs of displacement sensors from an all-optical approach and explore their potential use.
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Affiliation(s)
- Lorena Escandell
- Group of Displays and Photonics Applications, Carlos III University of Madrid, Avda. de la Universidad, 30, Leganés, 28911 Madrid, Spain
| | - Carlos Álvarez-Rodríguez
- Group of Displays and Photonics Applications, Carlos III University of Madrid, Avda. de la Universidad, 30, Leganés, 28911 Madrid, Spain
| | - Ángela Barreda
- Institute of Solid State Physics, Friedrich Schiller University Jena, Helmholtzweg 3, 07743 Jena, Germany
| | - Ramón Zaera
- Department of Continuum Mechanics and Structural Analysis, Carlos III University of Madrid, Avda. de la Universidad, 30, Leganés, 28911 Madrid, Spain
| | - Braulio García-Cámara
- Group of Displays and Photonics Applications, Carlos III University of Madrid, Avda. de la Universidad, 30, Leganés, 28911 Madrid, Spain
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16
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Ferrobotic swarms enable accessible and adaptable automated viral testing. Nature 2022; 611:570-577. [PMID: 36352231 PMCID: PMC9645323 DOI: 10.1038/s41586-022-05408-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 10/04/2022] [Indexed: 11/10/2022]
Abstract
Expanding our global testing capacity is critical to preventing and containing pandemics1–9. Accordingly, accessible and adaptable automated platforms that in decentralized settings perform nucleic acid amplification tests resource-efficiently are required10–14. Pooled testing can be extremely efficient if the pooling strategy is based on local viral prevalence15–20; however, it requires automation, small sample volume handling and feedback not available in current bulky, capital-intensive liquid handling technologies21–29. Here we use a swarm of millimetre-sized magnets as mobile robotic agents (‘ferrobots’) for precise and robust handling of magnetized sample droplets and high-fidelity delivery of flexible workflows based on nucleic acid amplification tests to overcome these limitations. Within a palm-sized printed circuit board-based programmable platform, we demonstrated the myriad of laboratory-equivalent operations involved in pooled testing. These operations were guided by an introduced square matrix pooled testing algorithm to identify the samples from infected patients, while maximizing the testing efficiency. We applied this automated technology for the loop-mediated isothermal amplification and detection of the SARS-CoV-2 virus in clinical samples, in which the test results completely matched those obtained off-chip. This technology is easily manufacturable and distributable, and its adoption for viral testing could lead to a 10–300-fold reduction in reagent costs (depending on the viral prevalence) and three orders of magnitude reduction in instrumentation cost. Therefore, it is a promising solution to expand our testing capacity for pandemic preparedness and to reimagine the automated clinical laboratory of the future. A handheld printed circuit board-based programmable platform using ferrobots can perform the complex, laboratory-equivalent procedures involved in multiplexed and pooled nucleic acid amplification testing, allowing for the decentralization of viral diagnostics.
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17
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Yuan H, Chen P, Wan C, Li Y, Liu BF. Merging microfluidics with luminescence immunoassays for urgent point-of-care diagnostics of COVID-19. Trends Analyt Chem 2022; 157:116814. [PMCID: PMC9637550 DOI: 10.1016/j.trac.2022.116814] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022]
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18
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Progress and Challenges of Point-of-Need Photonic Biosensors for the Diagnosis of COVID-19 Infections and Immunity. BIOSENSORS 2022; 12:bios12090678. [PMID: 36140063 PMCID: PMC9496547 DOI: 10.3390/bios12090678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/13/2022] [Accepted: 08/16/2022] [Indexed: 11/25/2022]
Abstract
The new coronavirus disease, COVID-19, caused by SARS-CoV-2, continues to affect the world and after more than two years of the pandemic, approximately half a billion people are reported to have been infected. Due to its high contagiousness, our life has changed dramatically, with consequences that remain to be seen. To prevent the transmission of the virus, it is crucial to diagnose COVID-19 accurately, such that the infected cases can be rapidly identified and managed. Currently, the gold standard of testing is polymerase chain reaction (PCR), which provides the highest accuracy. However, the reliance on centralized rapid testing modalities throughout the COVID-19 pandemic has made access to timely diagnosis inconsistent and inefficient. Recent advancements in photonic biosensors with respect to cost-effectiveness, analytical performance, and portability have shown the potential for such platforms to enable the delivery of preventative and diagnostic care beyond clinics and into point-of-need (PON) settings. Herein, we review photonic technologies that have become commercially relevant throughout the COVID-19 pandemic, as well as emerging research in the field of photonic biosensors, shedding light on prospective technologies for responding to future health outbreaks. Therefore, in this article, we provide a review of recent progress and challenges of photonic biosensors that are developed for the testing of COVID-19, consisting of their working fundamentals and implementation for COVID-19 testing in practice with emphasis on the challenges that are faced in different development stages towards commercialization. In addition, we also present the characteristics of a biosensor both from technical and clinical perspectives. We present an estimate of the impact of testing on disease burden (in terms of Disability-Adjusted Life Years (DALYs), Quality Adjusted Life Years (QALYs), and Quality-Adjusted Life Days (QALDs)) and how improvements in cost can lower the economic impact and lead to reduced or averted DALYs. While COVID19 is the main focus of these technologies, similar concepts and approaches can be used and developed for future outbreaks of other infectious diseases.
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19
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Design and Analysis of Highly Sensitive LSPR-Based Metal–Insulator–Metal Nano-Discs as a Biosensor for Fast Detection of SARS-CoV-2. PHOTONICS 2022. [DOI: 10.3390/photonics9080542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
For over 2 years, the coronavirus has been the most urgent challenge to humanity, and the development of rapid and accurate detection methods is crucial to control these viruses. Here, a 3D FDTD simulation of Au/SiO2/Au metal–insulator–metal (MIM) nanostructures as a biosensor was performed. The strong coupling between the two plasmonic interfaces in the Au/SiO2/Au cavity helped us to obtain relatively higher sensitivity. The attachment of SARS-CoV-2 changed the refractive index, which was used to detect SARS-CoV-2. Due to the higher overlapping of plasmonic mode with the environment of nano-discs, a higher sensitivity of 312.8 nm/RIU was obtained. The peak wavelength of the proposed structure shifted by approximately 47 nm when the surrounding medium refractive index changed from 1.35 (no binding) to 1.5 (full binding). Consequently, the SPR peak intensity variation can be used as another sensing mechanism to detect SARS-CoV-2. Finally, the previously reported refractive index changes for various concentrations of the SARS-CoV-2 S-glycoprotein solution were used to evaluate the performance of the designed biosensor.
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20
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Asymmetric Mach–Zehnder Interferometric Biosensing for Quantitative and Sensitive Multiplex Detection of Anti-SARS-CoV-2 Antibodies in Human Plasma. BIOSENSORS 2022; 12:bios12080553. [PMID: 35892450 PMCID: PMC9394312 DOI: 10.3390/bios12080553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 12/11/2022]
Abstract
The Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) pandemic has once more emphasized the urgent need for accurate and fast point-of-care (POC) diagnostics for outbreak control and prevention. The main challenge in the development of POC in vitro diagnostics (IVD) is to combine a short time to result with a high sensitivity, and to keep the testing cost-effective. In this respect, sensors based on photonic integrated circuits (PICs) may offer advantages as they have features such as a high analytical sensitivity, capability for multiplexing, ease of miniaturization, and the potential for high-volume manufacturing. One special type of PIC sensor is the asymmetric Mach–Zehnder Interferometer (aMZI), which is characterized by a high and tunable analytical sensitivity. The current work describes the application of an aMZI-based biosensor platform for sensitive and multiplex detection of anti-SARS-CoV-2 antibodies in human plasma samples using the spike protein (SP), the receptor-binding domain (RBD), and the nucleocapsid protein (NP) as target antigens. The results are in good agreement with several CE-IVD marked reference methods and demonstrate the potential of the aMZI biosensor technology for further development into a photonic IVD platform.
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21
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Xu J, Kerr L, Jiang Y, Suo W, Zhang L, Lao T, Chen Y, Zhang Y. Rapid Antigen Diagnostics as Frontline Testing in the COVID‐19 Pandemic. SMALL SCIENCE 2022; 2:2200009. [PMID: 35942171 PMCID: PMC9349911 DOI: 10.1002/smsc.202200009] [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: 01/30/2022] [Revised: 04/25/2022] [Indexed: 11/09/2022] Open
Abstract
The ongoing global COVID‐19 pandemic, caused by the SARS‐CoV‐2 virus, has resulted in significant loss of life since December 2019. Timely and precise virus detection has been proven as an effective solution to reduce the spread of the virus and to track the epidemic. Rapid antigen diagnostics has played a significant role in the frontline of COVID‐19 testing because of its convenience, low cost, and high accuracy. Herein, different types of recently innovated in‐lab and commercial antigen diagnostic technologies with emphasis on the strengths and limitations of these technologies including the limit of detection, sensitivity, specificity, affordability, and usability are systematically reviewed. The perspectives of assay development are looked into.
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Affiliation(s)
- Jiang Xu
- Department of Systems Biology Blavatnik Institute Harvard Medical School Boston MA 02115 USA
- Department of Molecular Virology Virogin Biotech Ltd. 3800 Wesbrook Mall Vancouver BC V6S 2L9 Canada
| | - Liam Kerr
- Department of Mechanical Engineering Center for Intelligent Machines McGill University Montreal QC H3A0C3 Canada
| | - Yue Jiang
- China-Australia Institute for Advanced Materials and Manufacturing Jiaxing University Jiaxing 314001 China
| | - Wenhao Suo
- Dana-Farber Cancer Institute Harvard Medical School Boston MA 02215 USA
- Department of Pathology The First Affiliated Hospital of Xiamen University 55 Zhenhai Road Xiamen 361003 China
| | - Lei Zhang
- Department of Chemical Engineering Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo ON N2L3G1 Canada
| | - Taotao Lao
- Department of Molecular Diagnostics Boston Molecules Inc. 564 Main Street Waltham MA 02452 USA
- Center for Immunology and Inflammatory Diseases Massachusetts General Hospital Harvard Medical School Charlestown MA 02114 USA
| | - Yuxin Chen
- Department of Laboratory Medicine Nanjing Drum Tower Hospital Nanjing University Medical School Nanjing Jiangsu 210008 China
| | - Yan Zhang
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency Collaborative Innovation Center of Chemical Science and Engineering School of Pharmaceutical Science and Technology Tianjin University Tianjin 300072 China
- Frontiers Science Center for Synthetic Biology (Ministry of Education) Tianjin University Tianjin 300072 China
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22
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Kumar A, Parihar A, Panda U, Parihar DS. Microfluidics-Based Point-of-Care Testing (POCT) Devices in Dealing with Waves of COVID-19 Pandemic: The Emerging Solution. ACS APPLIED BIO MATERIALS 2022; 5:2046-2068. [PMID: 35473316 PMCID: PMC9063993 DOI: 10.1021/acsabm.1c01320] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 04/11/2022] [Indexed: 02/08/2023]
Abstract
Recent advances in microfluidics-based point-of-care testing (POCT) technology such as paper, array, and beads have shown promising results for diagnosing various infectious diseases. The fast and timely detection of viral infection has proven to be a critical step for deciding the therapeutic outcome in the current COVID-19 pandemic, which in turn not only enhances the patient survival rate but also reduces the disease-associated comorbidities. In the present scenario, rapid, noninvasive detection of the virus using low cost and high throughput microfluidics-based POCT devices embraces the advantages over existing diagnostic technologies, for which a centralized lab facility, expensive instruments, sample pretreatment, and skilled personnel are required. Microfluidic-based multiplexed POCT devices can be a boon for clinical diagnosis in developing countries that lacks a centralized health care system and resources. The microfluidic devices can be used for disease diagnosis and exploited for the development and testing of drug efficacy for disease treatment in model systems. The havoc created by the second wave of COVID-19 led several countries' governments to the back front. The lack of diagnostic kits, medical devices, and human resources created a huge demand for a technology that can be remotely operated with single touch and data that can be analyzed on a phone. Recent advancements in information technology and the use of smartphones led to a paradigm shift in the development of diagnostic devices, which can be explored to deal with the current pandemic situation. This review sheds light on various approaches for the development of cost-effective microfluidics POCT devices. The successfully used microfluidic devices for COVID-19 detection under clinical settings along with their pros and cons have been discussed here. Further, the integration of microfluidic devices with smartphones and wireless network systems using the Internet-of-things will enable readers for manufacturing advanced POCT devices for remote disease management in low resource settings.
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Affiliation(s)
- Avinash Kumar
- Department of Mechanical Engineering,
Indian Institute of Information Technology Design & Manufacturing
Kancheepuram, Chennai 600127, India
| | - Arpana Parihar
- Industrial Waste Utilization, Nano and Biomaterials,
CSIR-Advanced Materials and Processes Research Institute
(AMPRI), Hoshangabad Road, Bhopal, Madhya Pradesh 462026,
India
| | - Udwesh Panda
- Department of Mechanical Engineering,
Indian Institute of Information Technology Design & Manufacturing
Kancheepuram, Chennai 600127, India
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Salahandish R, Haghayegh F, Ayala-Charca G, Hyun JE, Khalghollah M, Zare A, Far B, Berenger BM, Niu YD, Ghafar-Zadeh E, Sanati-Nezhad A. Bi-ECDAQ: An electrochemical dual-immuno-biosensor accompanied by a customized bi-potentiostat for clinical detection of SARS-CoV-2 Nucleocapsid proteins. Biosens Bioelectron 2022; 203:114018. [PMID: 35114466 PMCID: PMC8786409 DOI: 10.1016/j.bios.2022.114018] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/08/2022] [Accepted: 01/15/2022] [Indexed: 01/10/2023]
Abstract
Multiplex electrochemical biosensors have been used for eliminating the matrix effect in complex bodily fluids or enabling the detection of two or more bioanalytes, overall resulting in more sensitive assays and accurate diagnostics. Many electrochemical biosensors lack reliable and low-cost multiplexing to meet the requirements of point-of-care detection due to either limited functional biosensors for multi-electrode detection or incompatible readout systems. We developed a new dual electrochemical biosensing unit accompanied by a customized potentiostat to address the unmet need for point-of-care multi-electrode electrochemical biosensing. The two-working electrode system was developed using screen-printing of a carboxyl-rich nanomaterial containing ink, with both working electrodes offering active sites for recognition of bioanalytes. The low-cost bi-potentiostat system (∼$80) was developed and customized specifically to the bi-electrode design and used for rapid, repeatable, and accurate measurement of electrochemical impedance spectroscopy signals from the dual biosensor. This binary electrochemical data acquisition (Bi-ECDAQ) system accurately and selectively detected SARS-CoV-2 Nucleocapsid protein (N-protein) in both spiked samples and clinical nasopharyngeal swab samples of COVID-19 patients within 30 min. The two working electrodes offered the limit of detection of 116 fg/mL and 150 fg/mL, respectively, with the dynamic detection range of 1-10,000 pg/mL and the sensitivity range of 2744-2936 Ω mL/pg.mm2 for the detection of N-protein. The potentiostat performed comparable or better than commercial Autolab potentiostats while it is significantly lower cost. The open-source Bi-ECDAQ presents a customizable and flexible approach towards addressing the need for rapid and accurate point-of-care electrochemical biosensors for the rapid detection of various diseases.
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Affiliation(s)
- Razieh Salahandish
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada,Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Fatemeh Haghayegh
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada,Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Giancarlo Ayala-Charca
- Biologically Inspired Sensors and Actuators (BioSA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J1P3, Canada
| | - Jae Eun Hyun
- Alberta Public Health Laboratory, Alberta Precision Laboratories, 3330 Hospital Drive, Calgary, Alberta, T2N 4W4, Canada
| | - Mahmood Khalghollah
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada,Department of Electrical and Software Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Azam Zare
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Behrouz Far
- Department of Electrical and Software Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada
| | - Byron M. Berenger
- Alberta Public Health Laboratory, Alberta Precision Laboratories, 3330 Hospital Drive, Calgary, Alberta, T2N 4W4, Canada,Department of Pathology and Laboratory Medicine, University of Calgary, 3535 Research Rd, Calgary, Alberta, T2L 1Y1, Canada
| | - Yan Dong Niu
- Department of Pathology and Laboratory Medicine, University of Calgary, 3535 Research Rd, Calgary, Alberta, T2L 1Y1, Canada; Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
| | - Ebrahim Ghafar-Zadeh
- Biologically Inspired Sensors and Actuators (BioSA), Department of Electrical Engineering and Computer Science, Lassonde School of Engineering, York University, Toronto, M3J1P3, Canada.
| | - Amir Sanati-Nezhad
- BioMEMS and Bioinspired Microfluidic Laboratory, Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada; Department of Biomedical Engineering, University of Calgary, Calgary, Alberta, T2N 1N4, Canada; Biomedical Engineering Graduate Program, University of Calgary, Calgary, Alberta, T2N 1N4, Canada.
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24
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Saad Y, Gazzah MH, Mougin K, Selmi M, Belmabrouk H. Sensitive Detection of SARS-CoV-2 Using a Novel Plasmonic Fiber Optic Biosensor Design. PLASMONICS (NORWELL, MASS.) 2022; 17:1489-1500. [PMID: 35493722 PMCID: PMC9034078 DOI: 10.1007/s11468-022-01639-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 04/11/2022] [Indexed: 06/01/2023]
Abstract
The coronavirus (COVID-19) pandemic has put the entire world at risk and caused an economic downturn in most countries. This work provided theoretical insight into a novel fiber optic-based plasmonic biosensor that can be used for sensitive detection of SARS-CoV-2. The aim was always to achieve reliable, sensitive, and reproducible detection. The proposed configuration is based on Ag-Au alloy nanoparticle films covered with a layer of graphene which promotes the molecular adsorption and a thiol-tethered DNA layer as a ligand. Here, the combination of two recent approaches in a single configuration is very promising and can only lead to considerable improvement. We have theoretically analyzed the sensor performance in terms of sensitivity and resolution. To highlight the importance of the new configuration, a comparison was made with two other sensors. One is based on gold nanoparticles incorporated into a host medium; the other is composed of a bimetallic Ag-Au layer in the massive state. The numerical results obtained have been validated and show that the proposed configuration offers better sensitivity (7100 nm\RIU) and good resolution (figure of merit; FOM = 38.88 RIU - 1 and signal-to-noise ratio; SNR = 0.388). In addition, a parametric study was performed such as the graphene layers' number and the size of the nanoparticles.
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Affiliation(s)
- Yosra Saad
- Laboratory of Quantum and Statistical Physics, Faculty of Sciences of Monastir, University of Monastir, 5019 Monastir, Tunisia
| | - Mohamed Hichem Gazzah
- Laboratory of Quantum and Statistical Physics, Faculty of Sciences of Monastir, University of Monastir, 5019 Monastir, Tunisia
| | - Karine Mougin
- University of Haute-Alsace, Institute of Materials Science of Mulhouse, IS2M-CNRS-UMR 7361, 15 Rue Jean Starcky, 68057 Mulhouse, France
| | - Marwa Selmi
- Laboratory of Electronics and Microelectronics, Faculty of Science of Monastir, University of Monastir, 5019 Monastir, Tunisia
| | - Hafedh Belmabrouk
- Laboratory of Electronics and Microelectronics, Faculty of Science of Monastir, University of Monastir, 5019 Monastir, Tunisia
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25
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Surface Plasmon Resonance (SPR) Spectroscopy and Photonic Integrated Circuit (PIC) Biosensors: A Comparative Review. SENSORS 2022; 22:s22082901. [PMID: 35458884 PMCID: PMC9028357 DOI: 10.3390/s22082901] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/30/2022] [Accepted: 04/07/2022] [Indexed: 12/17/2022]
Abstract
Label-free direct-optical biosensors such as surface-plasmon resonance (SPR) spectroscopy has become a gold standard in biochemical analytics in centralized laboratories. Biosensors based on photonic integrated circuits (PIC) are based on the same physical sensing mechanism: evanescent field sensing. PIC-based biosensors can play an important role in healthcare, especially for point-of-care diagnostics, if challenges for a transfer from research laboratory to industrial applications can be overcome. Research is at this threshold, which presents a great opportunity for innovative on-site analyses in the health and environmental sectors. A deeper understanding of the innovative PIC technology is possible by comparing it with the well-established SPR spectroscopy. In this work, we shortly introduce both technologies and reveal similarities and differences. Further, we review some latest advances and compare both technologies in terms of surface functionalization and sensor performance.
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26
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Anand S, Sharma V, Pourush R, Jaiswal S. A comprehensive survey on the biomedical signal processing methods for the detection of COVID-19. Ann Med Surg (Lond) 2022; 76:103519. [PMID: 35401978 PMCID: PMC8975609 DOI: 10.1016/j.amsu.2022.103519] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/09/2022] [Accepted: 03/26/2022] [Indexed: 12/16/2022] Open
Abstract
The novel coronavirus, renamed SARS-CoV-2 and most commonly referred to as COVID-19, has infected nearly 44.83 million people in 224 countries and has been designated SARS-CoV-2. In this study, we used ‘web of Science’, ‘Scopus’ and ‘goggle scholar’ with the keywords of “SARS-CoV-2 detection” or “coronavirus 2019 detection” or “COVID 2019 detection” or “COVID 19 detection” “corona virus techniques for detection of COVID-19”, “audio techniques for detection of COVID-19”, “speech techniques for detection of COVID-19”, for period of 2019–2021. Some COVID-19 instances have an impact on speech production, which suggests that researchers should look for signs of disease detection in speech utilising audio and speech recognition signals from humans to better understand the condition. It is presented in this review that an overview of human audio signals is presented using an AI (Artificial Intelligence) model to diagnose, spread awareness, and monitor COVID-19, employing bio and non-obtrusive signals that communicated human speech and non-speech audio information is presented. Development of accurate and rapid screening techniques that permit testing at a reasonable cost is critical in the current COVID-19 pandemic crisis, according to the World Health Organization. In this context, certain existing investigations have shown potential in the detection of COVID 19 diagnostic signals from relevant auditory noises, which is a promising development. According to authors, it is not a single “perfect” COVID-19 test that is required, but rather a combination of rapid and affordable tests, non-clinic pre-screening tools, and tools from a variety of supply chains and technologies that will allow us to safely return to our normal lives while we await the completion of the hassle free COVID-19 vaccination process for all ages. This review was able to gather information on biomedical signal processing in the detection of speech, coughing sounds, and breathing signals for the purpose of diagnosing and screening the COVID-19 virus. This is a comprehensive review of published work for the detection of COVID-19. Previously conducted studies on audio, voice, cough sound, breathing and signal processing methods in order to address COVID-19-related health conditions. Analyzing and diagnosing COVID-19 using audio, speech and Signal Processing. Diagnosing and Screening of COVID-19 are studied using Machine Learning, Artificial Intelligence and Deep Learning. An overall these Signal Processing, Machine Learning, Artificial Intelligence and Deep Learning techniques were seen to have satisfactory results for the detection of COVID-19.
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Affiliation(s)
- Satyajit Anand
- Electronics and Communication Engineering, Mody University of Science and Technology, India
| | - Vikrant Sharma
- Mechanical Engineering, Mody University of Science and Technology, India
| | - Rajeev Pourush
- Electronics and Communication Engineering, Mody University of Science and Technology, India
| | - Sandeep Jaiswal
- Biomedical Engineering, Mody University of Science and Technology, India
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Zhang W, He Y, Feng Z, Zhang J. Recent advances of functional nucleic acid-based sensors for point-of-care detection of SARS-CoV-2. Mikrochim Acta 2022; 189:128. [PMID: 35235065 PMCID: PMC8889384 DOI: 10.1007/s00604-022-05242-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/21/2022] [Indexed: 12/18/2022]
Abstract
This review focuses on critical scientific barriers that the field of point-of-care (POC) testing of SARS-CoV-2 is facing and possible solutions to overcome these barriers using functional nucleic acid (FNA)-based technology. Beyond the summary of recent advances in FNA-based sensors for COVID-19 diagnostics, our goal is to outline how FNA might serve to overcome the scientific barriers that currently available diagnostic approaches are suffering. The first introductory section on the operationalization of the COVID-19 pandemic in historical view and its clinical features contextualizes essential SARS-CoV-2-specific biomarkers. The second part highlights three major scientific barriers for POC COVID-19 diagnosis, that is, the lack of a general method for (1) designing receptors of SARS-CoV-2 variants; (2) improving sensitivity to overcome false negatives; and (3) signal readout in resource-limited settings. The subsequent part provides fundamental insights into FNA and technical tricks to successfully achieve effective COVID-19 diagnosis by using in vitro selection of FNA to overcome receptor design barriers, combining FNA with multiple DNA signal amplification strategies to improve sensitivity, and interfacing FNA with portable analyzers to overcome signal readout barriers. This review concludes with an overview of further opportunities and emerging applications for FNA-based sensors against COVID-19.
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Affiliation(s)
- Wenxian Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Ying He
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Zhe Feng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China
| | - Jingjing Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing, 210023, China.
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28
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Hussain R, Ongaro AE, Rodriguez de la Concepción ML, Wajs E, Riveira-Muñoz E, Ballana E, Blanco J, Toledo R, Chamorro A, Massanella M, Mateu L, Grau E, Clotet B, Carrillo J, Pruneri V. Small form factor flow virometer for SARS-CoV-2. BIOMEDICAL OPTICS EXPRESS 2022; 13:1609-1619. [PMID: 35415002 PMCID: PMC8973178 DOI: 10.1364/boe.450212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/19/2022] [Accepted: 01/22/2022] [Indexed: 05/20/2023]
Abstract
Current diagnostics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection heavily rely on reverse transcription-polymerase chain reaction (RT-PCR) or on rapid antigen detection tests. The former suffers from long time-to-result and high cost while the latter from poor sensitivity. Therefore, it is crucial to develop rapid, sensitive, robust, and inexpensive methods for SARS-CoV-2 testing. Herein, we report a novel optofluidic technology, a flow-virometry reader (FVR), for fast and reliable SARS-CoV-2 detection in saliva samples. A small microfluidic chip together with a laser-pumped optical head detects the presence of viruses tagged with fluorescent antibodies directly from saliva samples. The technology has been validated using clinical samples with high sensitivity (91.2%) and specificity (90%). Thanks also to its short time-to-result (<30 min) and small size (25 × 30 × 13 cm), which can be further reduced in the future, it is a strong alternative to existing tests, especially for point-of-care (POC) and low resource settings.
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Affiliation(s)
- Rubaiya Hussain
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860, Castelldefels (Barcelona), Spain
- Contributed equally
| | - Alfredo E Ongaro
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860, Castelldefels (Barcelona), Spain
- Contributed equally
| | - Maria L Rodriguez de la Concepción
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
- Contributed equally
| | - Ewelina Wajs
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860, Castelldefels (Barcelona), Spain
| | - Eva Riveira-Muñoz
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
| | - Ester Ballana
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
| | - Ruth Toledo
- Infectious Diseases Department, Fight against AIDS Foundation (FLS), Germans Trias i Pujol Hospital, 08916, Badalona, Catalonia, Spain
| | - Anna Chamorro
- Infectious Diseases Department, Fight against AIDS Foundation (FLS), Germans Trias i Pujol Hospital, 08916, Badalona, Catalonia, Spain
| | - Marta Massanella
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
| | - Lourdes Mateu
- Infectious Diseases Department, Fight against AIDS Foundation (FLS), Germans Trias i Pujol Hospital, 08916, Badalona, Catalonia, Spain
| | - Eulalia Grau
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
| | - Bonaventura Clotet
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
- Infectious Diseases Department, Fight against AIDS Foundation (FLS), Germans Trias i Pujol Hospital, 08916, Badalona, Catalonia, Spain
- University of Vic-Central University of Catalonia (UVic-UCC), 08500, Vic, Catalonia, Spain
| | - Jorge Carrillo
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, 08916, Badalona, Catalonia, Spain
| | - Valerio Pruneri
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860, Castelldefels (Barcelona), Spain
- ICREA- Institució Catalana de Recerca i Estudis Avançats, 08010, Barcelona, Spain
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29
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Adam T, Gopinath SC. Nanosensors: Recent Perspectives on Attainments and Future Promise of Downstream Applications. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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30
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Abdollahzadeh L, Seyfi Mazraeno M, Hosseini SN, Fazlali A, Khatami M. Application of a 3D printed miniaturized hydrocyclone in biopharmaceutical industry-numerical and experimental studies of yeast separation from fermentation culture media. Prep Biochem Biotechnol 2022; 53:31-39. [PMID: 35225162 DOI: 10.1080/10826068.2022.2035746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Various industries ranging from water purification to pharmaceutical production have experienced multi separation steps that impose more process time and contamination possibility by batch operation. We propose a developed microfluidic particle sorter (miniaturized hydrocyclone) that adopts centrifugal force as it has ability to decline the number of separation steps and the risk of extrinsic contamination in continuous process. While biological industries have not relied on mini hydrocyclones considerably because of low efficiency and microfabrication difficulties, current work has been planned to conquer these obstacles. In this research, biomass separation from fermentation broth by 3 mm hydrocyclones was investigated. The effect of apex size, feed flow rate, hydrocyclone geometry were analyzed numerically in four mini-hydrocyclones. The most efficient mini-hydrocyclone was chosen to be made by elegant additive manufacturing technology and studied experimentally. The separation efficiency was achieved up to 90% while the concentration ratio of heavy stream (apex) to dilute stream (vortex finder) was reached more than twofold. The mini hydrocyclone performance in view of energy target was studied by Euler-Reynolds-Efficiency plots. The 4 μm cut size was achieved that is promising high throughput separation for biological particles.
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Affiliation(s)
- Laleh Abdollahzadeh
- Department of Hepatitis B Vaccine Production, Production and Research Complex, Pasteur Institute of Iran, Tehran, Iran
| | | | - Seyed Nezamedin Hosseini
- Department of Hepatitis B Vaccine Production, Production and Research Complex, Pasteur Institute of Iran, Tehran, Iran
| | - Alireza Fazlali
- Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Iran
| | - Maryam Khatami
- Department of Hepatitis B Vaccine Production, Production and Research Complex, Pasteur Institute of Iran, Tehran, Iran
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Li T, Soelberg SD, Taylor Z, Sakthivelpathi V, Furlong CE, Kim JH, Ahn SG, Han PD, Starita LM, Zhu J, Chung JH. Highly Sensitive Immunoresistive Sensor for Point-Of-Care Screening for COVID-19. BIOSENSORS 2022; 12:149. [PMID: 35323418 PMCID: PMC8946488 DOI: 10.3390/bios12030149] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 11/16/2022]
Abstract
Current point-of-care (POC) screening of Coronavirus disease 2019 (COVID-19) requires further improvements to achieve highly sensitive, rapid, and inexpensive detection. Here we describe an immunoresistive sensor on a polyethylene terephthalate (PET) film for simple, inexpensive, and highly sensitive COVID-19 screening. The sensor is composed of single-walled carbon nanotubes (SWCNTs) functionalized with monoclonal antibodies that bind to the spike protein of SARS-CoV-2. Silver electrodes are silkscreen-printed on SWCNTs to reduce contact resistance. We determine the SARS-CoV-2 status via the resistance ratio of control- and SARS-CoV-2 sensor electrodes. A combined measurement of two adjacent sensors enhances the sensitivity and specificity of the detection protocol. The lower limit of detection (LLD) of the SWCNT assay is 350 genome equivalents/mL. The developed SWCNT sensor shows 100% sensitivity and 90% specificity in clinical sample testing. Further, our device adds benefits of a small form factor, simple operation, low power requirement, and low assay cost. This highly sensitive film sensor will facilitate rapid COVID-19 screening and expedite the development of POC screening platforms.
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Affiliation(s)
- Tianyi Li
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA; (T.L.); (Z.T.); (V.S.)
| | - Scott D. Soelberg
- Departments of Medicine, Division of Medical Genetics and Genome Sciences, University of Washington, Seattle, WA 98195, USA; (S.D.S.); (C.E.F.)
| | - Zachary Taylor
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA; (T.L.); (Z.T.); (V.S.)
| | - Vigneshwar Sakthivelpathi
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA; (T.L.); (Z.T.); (V.S.)
| | - Clement E. Furlong
- Departments of Medicine, Division of Medical Genetics and Genome Sciences, University of Washington, Seattle, WA 98195, USA; (S.D.S.); (C.E.F.)
| | - Jong-Hoon Kim
- School of Engineering and Computer Science, Washington State University, Vancouver, WA 98686, USA;
| | - Sang-gyeun Ahn
- Industrial Design, University of Washington, Seattle, WA 98195, USA;
| | - Peter D. Han
- Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA; (P.D.H.); (L.M.S.)
- Brotman Baty Institute for Precision Medicine, Seattle, WA 98195, USA
| | - Lea M. Starita
- Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA; (P.D.H.); (L.M.S.)
- Brotman Baty Institute for Precision Medicine, Seattle, WA 98195, USA
| | - Jia Zhu
- Department of Laboratory Medicine and Pathology, University of Washington, and Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98195, USA;
| | - Jae-Hyun Chung
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA; (T.L.); (Z.T.); (V.S.)
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32
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Dhar BC. Diagnostic assay and technology advancement for detecting SARS-CoV-2 infections causing the COVID-19 pandemic. Anal Bioanal Chem 2022; 414:2903-2934. [PMID: 35211785 PMCID: PMC8872642 DOI: 10.1007/s00216-022-03918-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/01/2022] [Accepted: 01/20/2022] [Indexed: 12/23/2022]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-caused COVID-19 pandemic has transmitted to humans in practically all parts of the world, producing socio-economic turmoil. There is an urgent need for precise, fast, and affordable diagnostic testing to be widely available for detecting SARS-CoV-2 and its mutations in various phases of the disease. Early diagnosis with great precision has been achieved using real-time polymerase chain reaction (RT-PCR) and similar other molecular methods, but theseapproaches are costly and involve rigorous processes that are not easily obtainable. Conversely, immunoassays that detect a small number of antibodies have been employed for quick, low-cost tests, but their efficiency in diagnosing infected people has been restricted. The use of biosensors in the detection of SARS-CoV-2 is vital for the COVID-19 pandemic’s control. This review gives an overview of COVID-19 diagnostic approaches that are currently being developed as well as nanomaterial-based biosensor technologies, to aid future technological advancement and innovation. These approaches can be integrated into point-of-care (POC) devices to quickly identify a large number of infected patients and asymptomatic carriers. The ongoing research endeavors and developments in complementary technologies will play a significant role in curbing the spread of the COVID-19 pandemic and fill the knowledge gaps in current diagnostic accuracy and capacity.
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Affiliation(s)
- Bidhan C Dhar
- Lineberger Comprehensive Cancer Center, University of North Carolina (UNC), 205 S Columbia St, Chapel Hill, NC, 27514, USA.
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33
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Penetration of the SARS-CoV-2 Spike Protein across the Blood–Brain Barrier, as Revealed by a Combination of a Human Cell Culture Model System and Optical Biosensing. Biomedicines 2022; 10:biomedicines10010188. [PMID: 35052867 PMCID: PMC8773803 DOI: 10.3390/biomedicines10010188] [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: 11/30/2021] [Revised: 12/31/2021] [Accepted: 01/12/2022] [Indexed: 01/12/2023] Open
Abstract
Since the outbreak of the global pandemic caused by severe acute respiratory coronavirus 2 (SARS-CoV-2), several clinical aspects of the disease have come into attention. Besides its primary route of infection through the respiratory system, SARS-CoV-2 is known to have neuroinvasive capacity, causing multiple neurological symptoms with increased neuroinflammation and blood–brain barrier (BBB) damage. The viral spike protein disseminates via circulation during infection, and when reaching the brain could possibly cross the BBB, which was demonstrated in mice. Therefore, its medical relevance is of high importance. The aim of this study was to evaluate the barrier penetration of the S1 subunit of spike protein in model systems of human organs highly exposed to the infection. For this purpose, in vitro human BBB and intestinal barrier cell–culture systems were investigated by an optical biosensing method. We found that spike protein crossed the human brain endothelial cell barrier effectively. Additionally, spike protein passage was found in a lower amount for the intestinal barrier cell layer. These observations were corroborated with parallel specific ELISAs. The findings on the BBB model could provide a further basis for studies focusing on the mechanism and consequences of spike protein penetration across the BBB to the brain.
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Xi H, Jiang H, Juhas M, Zhang Y. Multiplex Biosensing for Simultaneous Detection of Mutations in SARS-CoV-2. ACS OMEGA 2021; 6:25846-25859. [PMID: 34632242 PMCID: PMC8491437 DOI: 10.1021/acsomega.1c04024] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/10/2021] [Indexed: 05/02/2023]
Abstract
COVID-19 pandemic caused by the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) has become the world's largest public health emergency of the past few decades. Thousands of mutations were identified in the SARS-CoV-2 genome. Some mutants are more infectious and may replace the original strains. Recently, B.1.1.7(Alpha), B1.351(Beta), and B.1.617.2(Delta) strains, which appear to have increased transmissibility, were detected. These strains accounting for the high proportion of newly diagnosed cases spread rapidly over the world. Particularly, the Delta variant has been reported to account for a vast majority of the infections in several countries over the last few weeks. The application of biosensors in the detection of SARS-CoV-2 is important for the control of the COVID-19 pandemic. Due to high demand for SARS-CoV-2 genotyping, it is urgent to develop reliable and efficient systems based on integrated multiple biosensor technology for rapid detection of multiple SARS-CoV-2 mutations simultaneously. This is important not only for the detection and analysis of the current but also for future mutations. Novel biosensors combined with other technologies can be used for the reliable and effective detection of SARS-CoV-2 mutants.
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Affiliation(s)
- Hui Xi
- College
of Science, Harbin Institute of Technology
(Shenzhen), Shenzhen, Guangdong 518055, China
| | - Hanlin Jiang
- College
of Science, Harbin Institute of Technology
(Shenzhen), Shenzhen, Guangdong 518055, China
| | - Mario Juhas
- Medical
and Molecular Microbiology Unit, Department of Medicine, Faculty of
Science and Medicine, University of Fribourg, Fribourg CH-1700, Switzerland
| | - Yang Zhang
- College
of Science, Harbin Institute of Technology
(Shenzhen), Shenzhen, Guangdong 518055, China
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Piotrowski AP, Piotrowska AE. Differential evolution and particle swarm optimization against COVID-19. Artif Intell Rev 2021; 55:2149-2219. [PMID: 34426713 PMCID: PMC8374127 DOI: 10.1007/s10462-021-10052-w] [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] [Accepted: 07/17/2021] [Indexed: 11/29/2022]
Abstract
COVID-19 disease, which highly affected global life in 2020, led to a rapid scientific response. Versatile optimization methods found their application in scientific studies related to COVID-19 pandemic. Differential Evolution (DE) and Particle Swarm Optimization (PSO) are two metaheuristics that for over two decades have been widely researched and used in various fields of science. In this paper a survey of DE and PSO applications for problems related with COVID-19 pandemic that were rapidly published in 2020 is presented from two different points of view: 1. practitioners seeking the appropriate method to solve particular problem, 2. experts in metaheuristics that are interested in methodological details, inter comparisons between different methods, and the ways for improvement. The effectiveness and popularity of DE and PSO is analyzed in the context of other metaheuristics used against COVID-19. It is found that in COVID-19 related studies: 1. DE and PSO are most frequently used for calibration of epidemiological models and image-based classification of patients or symptoms, but applications are versatile, even interconnecting the pandemic and humanities; 2. reporting on DE or PSO methodological details is often scarce, and the choices made are not necessarily appropriate for the particular algorithm or problem; 3. mainly the basic variants of DE and PSO that were proposed in the late XX century are applied, and research performed in recent two decades is rather ignored; 4. the number of citations and the availability of codes in various programming languages seems to be the main factors for choosing metaheuristics that are finally used.
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Affiliation(s)
- Adam P. Piotrowski
- Institute of Geophysics, Polish Academy of Sciences, Ks. Janusza 64, 01-452 Warsaw, Poland
| | - Agnieszka E. Piotrowska
- Faculty of Polish Studies, University of Warsaw, Krakowskie Przedmiescie 26/28, 00-927 Warsaw, Poland
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Uddin SMA, Chowdhury SS, Kabir E. Numerical Analysis of a Highly Sensitive Surface Plasmon Resonance Sensor for SARS-CoV-2 Detection. PLASMONICS (NORWELL, MASS.) 2021; 16:2025-2037. [PMID: 34054377 PMCID: PMC8144697 DOI: 10.1007/s11468-021-01455-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 05/03/2021] [Indexed: 05/27/2023]
Abstract
In this paper, we propose a surface plasmon resonance (SPR) structure based on Kretschmann configuration incorporating layers of silicon and BaTiO3 on top of Ag for real-time detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using thiol-tethered DNA as a ligand. Extensive numerical analysis based on transfer matrix theory as well as finite-difference time-domain (FDTD) technique has been performed to characterize the sensor response considering sensitivity, full width at half maxima, and minimum reflection. About 7.6 times enhanced sensitivity has been obtained using the proposed architecture for SARS-CoV-2 detection, compared to the basic Kretschmann configuration. Notably, the structure provides consistent enhancement over other competitive SPR structures for both angular and wavelength interrogations with a figure-of-merit of 692.28. Additionally, we repeated simulations for various ligate-ligand pairs to assess the range of applicability and robust performance improvement has been observed. As a result, the proposed sensor design provides a suitable configuration for highly sensitive, rapid, noninvasive biosensing which can be useful if adopted in experimental sensing protocols.
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Affiliation(s)
| | | | - Ehsan Kabir
- Department of EEE, Bangladesh University of Engineering and Technology, Dhaka, 1205 Bangladesh
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