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Jang YO, Lee HJ, Koo B, Cha HH, Kwon JS, Kim JY, Kim MG, Kim HS, Kim SH, Shin Y. Rapid COVID-19 Molecular Diagnostic System Using Virus Enrichment Platform. BIOSENSORS-BASEL 2021; 11:bios11100373. [PMID: 34677329 PMCID: PMC8534047 DOI: 10.3390/bios11100373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 09/25/2021] [Accepted: 10/03/2021] [Indexed: 12/22/2022]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus (SARS-CoV)-2, is rapidly spreading and severely straining the capacities of public health communities and systems around the world. Therefore, accurate, rapid, and robust diagnostic tests for COVID-19 are crucial to prevent further spread of the infection, alleviate the burden on healthcare and diagnostic facilities, and ensure timely therapeutic intervention. To date, several detection methods based on nucleic acid amplification have been developed for the rapid and accurate detection of SARS-CoV-2. Despite the myriad of advancements in the detection methods for SARS-CoV-2, rapid sample preparation methods for RNA extraction from viruses have rarely been explored. Here, we report a rapid COVID-19 molecular diagnostic system that combines a self-powered sample preparation assay and loop-mediated isothermal amplification (LAMP) based naked-eye detection method for the rapid and sensitive detection of SARS-CoV-2. The self-powered sample preparation assay with a hydrophilic polyvinylidene fluoride filter and dimethyl pimelimidate can be operated by hand, without the use of any sophisticated instrumentation, similar to the reverse transcription (RT)-LAMP-based lateral flow assay for the naked-eye detection of SARS-CoV-2. The COVID-19 molecular diagnostic system enriches the virus population, extracts and amplifies the target RNA, and detects SARS-CoV-2 within 60 min. We validated the accuracy of the system by using 23 clinical nasopharyngeal specimens. We envision that this proposed system will enable simple, facile, efficient, and inexpensive diagnosis of COVID-19 at home and the clinic as a pre-screening platform to reduce the burden on the medical staff in this pandemic era.
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Affiliation(s)
- Yoon Ok Jang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (Y.O.J.); (H.J.L.); (B.K.); (M.G.K.)
| | - Hyo Joo Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (Y.O.J.); (H.J.L.); (B.K.); (M.G.K.)
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 05505, Korea; (H.-H.C.); (J.-S.K.); (J.Y.K.)
| | - Bonhan Koo
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (Y.O.J.); (H.J.L.); (B.K.); (M.G.K.)
| | - Hye-Hee Cha
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 05505, Korea; (H.-H.C.); (J.-S.K.); (J.Y.K.)
| | - Ji-Soo Kwon
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 05505, Korea; (H.-H.C.); (J.-S.K.); (J.Y.K.)
| | - Ji Yeun Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 05505, Korea; (H.-H.C.); (J.-S.K.); (J.Y.K.)
| | - Myoung Gyu Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (Y.O.J.); (H.J.L.); (B.K.); (M.G.K.)
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology (AMIST), University of Ulsan College of Medicine, Songpa-gu, Seoul 05505, Korea
| | - Hyun Soo Kim
- INFUSIONTECH, 38, Heungan-daero 427 beon-gil, Dongan-gu, Anyang-si 14059, Korea;
| | - Sung-Han Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Songpa-gu, Seoul 05505, Korea; (H.-H.C.); (J.-S.K.); (J.Y.K.)
- Correspondence: (S.-H.K.); (Y.S.)
| | - Yong Shin
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, Korea; (Y.O.J.); (H.J.L.); (B.K.); (M.G.K.)
- Correspondence: (S.-H.K.); (Y.S.)
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Arunachalam M, Sinopoli A, Aidoudi F, Creager SE, Smith R, Merzougui B, Aïssa B. High Performance of Anion Exchange Blend Membranes Based on Novel Phosphonium Cation Polymers for All-Vanadium Redox Flow Battery Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:45935-45943. [PMID: 34533936 DOI: 10.1021/acsami.1c10872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The deployment of alkaline anion exchange membranes (AEMs) in flow battery applications has the advantage of a low cationic species crossover rate. However, the alkaline stability conjugated to the low conductivity of hydroxide ions of anion exchange membranes (AEMs) still represents a major drawback for the large deployment of such technology. In this study, three types of tetraarylpolyphosphonium (pTAP)-based copolymers (namely, CP1, CP2, and CP3) are synthesized and blended with chitosan and polyvinylidene fluoride (PVDF) for the fabrication of AEMs. Chitosan, a green biopolymer, was employed as a blend to enhance the water uptake of the base ionomer matrix. It is proposed that the abundancy of hydroxyl groups in chitosan improves considerably the ionic conductivity, water transport, and ion selectivity of the membrane, together with facilitating the dispersion of the chitosan in the pTAP copolymer matrix. The purpose of blending PVDF is instead to provide stable mechanical strength to the composite blend. The chemical, mechanical, and thermal stabilities of the three fabricated composite-blend membranes (i.e., CM1, CM2, and CM3) were characterized. All the membranes exhibited a high water retaining capacity of up to 36.26% (recorded for CM2) along with a hydroxyl ion conductivity of 17.39 mS cm-1. Due to the strong interactions between pTAP copolymers, chitosan, and PVDF polymers (confirmed also by Fourier transform infrared spectroscopy), the studied anion exchange membranes are able to retain up to 97% of the original OH conductivity after 1 M KOH treatment at room temperature for 100 h. The three membranes, namely, CM1, CM2, and CM3, have vanadium ion permeabilities measured at 20 °C of 1.775 × 10-8, 1.718 × 10-8, and 1.648 × 10-8 cm2/s, respectively, which are lower than that for the commercially available Nafion. The good stability and remarkable cell performance of the composite-blend membranes reported here make them definitely excellent candidates for the future generation of vanadium redox flow batteries.
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Affiliation(s)
- Muthumeenal Arunachalam
- Qatar Environment & Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Alessandro Sinopoli
- Qatar Environment & Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Farida Aidoudi
- Qatar Environment & Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Stephen E Creager
- Department of Chemistry and Center for Optical Materials Science and Engineering Technology, Clemson University, 105 Sikes Hall, Clemson, South Carolina 29634, United States
| | - Rhett Smith
- Department of Chemistry and Center for Optical Materials Science and Engineering Technology, Clemson University, 105 Sikes Hall, Clemson, South Carolina 29634, United States
| | - Belabbes Merzougui
- Qatar Environment & Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
| | - Brahim Aïssa
- Qatar Environment & Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, Doha 34110, Qatar
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Abdolmaleki H, Agarwala S. PVDF-BaTiO 3 Nanocomposite Inkjet Inks with Enhanced β-Phase Crystallinity for Printed Electronics. Polymers (Basel) 2020; 12:E2430. [PMID: 33096805 PMCID: PMC7589867 DOI: 10.3390/polym12102430] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/15/2020] [Accepted: 10/19/2020] [Indexed: 01/14/2023] Open
Abstract
Polyvinylidene difluoride (PVDF) and its copolymers are promising electroactive polymers showing outstanding ferroelectric, piezoelectric, and pyroelectric properties in comparison with other organic materials. They have shown promise for applications in flexible sensors, energy-harvesting transducers, electronic skins, and flexible memories due to their biocompatibility, high chemical stability, bending and stretching abilities. PVDF can crystallize at five different phases of α, β, γ, δ, and ε; however, ferro-, piezo-, and pyroelectric properties of this polymer only originate from polar phases of β and γ. In this research, we reported fabrication of PVDF inkjet inks with enhanced β-phase crystallinity by incorporating barium titanate nanoparticles (BaTiO3). BaTiO3 not only acts as a nucleating agent to induce β-phase crystallinity, but it also improves the electric properties of PVDF through synergistic a ferroelectric polarization effect. PVDF-BaTiO3 nanocomposite inkjet inks with different BaTiO3 concentrations were prepared by wet ball milling coupled with bath ultrasonication. It was observed that the sample with 5 w% of BaTiO3 had the highest β-phase crystallinity, while in higher ratios overall crystallinity deteriorated progressively, leading to more amorphous structures.
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Affiliation(s)
| | - Shweta Agarwala
- Department of Engineering, Aarhus University, 8200 Aarhus, Denmark;
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Chen W, Chen M, Zhen D, Li T, Wu X, Tang S, Wan L, Zhang S, He G. SO 42-/SnO 2 Solid Superacid Granular Stacked One-Dimensional Hollow Nanofiber for a Highly Conductive Proton-Exchange Membrane. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40740-40748. [PMID: 32805848 DOI: 10.1021/acsami.0c09122] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A novel sulfated tin oxide solid superacid granular stacked one-dimensional (1D) hollow nanofiber (SO42-/FSnO2) is proposed as a nanofiller in sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK) to manipulate a highly conductive proton nanochannel. It has unique microstructures with an open-end hollow nanofibric morphology and grain-stacked single-layer mesoporous fiber wall, which greatly enlarge the specific surface area and aspect ratio. The diverse acid sites, that is, SO42-, Sn-OH Brönsted, and Sn4+ Lewis superacids, provide a high concentration of strong acidic proton carriers on the nanofiber surface and dynamically abundant hydrogen bonds for rapid proton transfer and interfacial interactions with -SO3H groups in the SPPESK along the 1D hollow nanofiber. As a result, long-range orientated ionic clusters are observed in the SO42-/FSnO2 incorporated membrane, leading to simultaneous enhancement of proton conductivity (226.7 mS/cm at 80 °C), mechanical stability (31.4 MPa for the hydrated membrane), fuel permeation resistance, and single-cell performance (936.5 and 147.3 mW/cm2 for H2/O2 and direct methanol fuel cells, respectively). The superior performance, as compared with that of the zero-dimensional nanoparticle-incorporated membrane, Nafion 115, and previously reported SPPESK-based membranes, suggests a great potential of elaborating superstructural 1D hollow nanofillers for highly conductive proton-exchange membranes.
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Affiliation(s)
- Wanting Chen
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Musen Chen
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Dongxing Zhen
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Tiantian Li
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xuemei Wu
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Shuai Tang
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Lei Wan
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Shouhai Zhang
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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Remanan S, Ghosh S, Das TK, Sharma M, Bose M, Bose S, Das AK, Das NC. Gradient crystallinity and its influence on the poly(vinylidene fluoride)/poly(methyl methacrylate) membrane‐derived by immersion precipitation method. J Appl Polym Sci 2020. [DOI: 10.1002/app.48677] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sanjay Remanan
- Rubber Technology Centre Indian Institute of Technology Kharagpur 721302 India
| | - Sabyasachi Ghosh
- Rubber Technology Centre Indian Institute of Technology Kharagpur 721302 India
| | - Tushar Kanti Das
- Rubber Technology Centre Indian Institute of Technology Kharagpur 721302 India
| | - Maya Sharma
- Soft Matter Rheology and Technology Division, Department of Chemical Engineering KU Leuven Leuven 3001 Belgium
| | - Madhuparna Bose
- Department of Biotechnology Indian Institute of Technology Kharagpur 721302 India
| | - Suryasarathi Bose
- Department of Materials Engineering Indian Institute of Science Bangalore 560012 India
| | - Amit Kumar Das
- Department of Biotechnology Indian Institute of Technology Kharagpur 721302 India
| | - Narayan Chandra Das
- Rubber Technology Centre Indian Institute of Technology Kharagpur 721302 India
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Effect of Sulfonation Degree and PVDF Content on the Structure and Transport Properties of SPEEK/PVDF Blend Membranes. Polymers (Basel) 2019; 11:polym11040676. [PMID: 31013878 PMCID: PMC6523115 DOI: 10.3390/polym11040676] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 01/29/2023] Open
Abstract
Sulfonated poly (ether ether ketone) (SPEEK) with four different sulfonation degrees (SDs) were prepared, and mixed with polyvinylidene fluoride (PVDF) to prepare four series of SPEEK/PVDF blend membranes. The miscibility between SPEEK and PVDF was investigated by observing the micro-morphologies. The miscible blend membranes were found in the SPEEK/PVDF blend membranes in which either SPEEK had relatively low SD or consisted of low content of one component (either SPEEK or PVDF). The PVDF crystallinity was found to decrease in the SPEEK/PVDF membranes that had better blend miscibility. With the increase of PVDF content, all the blend membranes exhibited the decreased proton conductivity and methanol permeability, and the miscible blend membranes decreased more slowly than the immiscible ones.
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Remanan S, Bose M, Das AK, Das NC. Preparation and characterization of a unique low-cost microfiltration membrane from a technologically compatible poly(ethylene-co-methyl acrylate)/poly(vinylidene fluoride) blend for water filtration application. J Appl Polym Sci 2018. [DOI: 10.1002/app.47218] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- S. Remanan
- Rubber Technology Centre; Indian Institute of Technology; Kharagpur 732302 India
| | - M. Bose
- Department of Biotechnology; Indian Institute of Technology; Kharagpur 721302 India
| | - A. K. Das
- Department of Biotechnology; Indian Institute of Technology; Kharagpur 721302 India
| | - N. C. Das
- Rubber Technology Centre; Indian Institute of Technology; Kharagpur 732302 India
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