15
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Inactivation of SARS-CoV-2 and photocatalytic degradation by TiO 2 photocatalyst coatings

      research-article

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causative agent of the COVID-19, which is a global pandemic, has infected more than 552 million people, and killed more than 6.3 million people. SARS-CoV-2 can be transmitted through airborne route in addition to direct contact and droplet modes, the development of disinfectants that can be applied in working spaces without evacuating people is urgently needed. TiO 2 is well known with some features of the purification, antibacterial/sterilization, making it could be developed disinfectants that can be applied in working spaces without evacuating people. Facing the severe epidemic, we expect to fully expand the application of our proposed effective approach of mechanical coating technique (MCT), which can be prepared on a large-scale fabrication of an easy-to-use TiO 2/Ti photocatalyst coating, with hope to curb the epidemic. The photocatalytic inactivation of SARS-CoV-2 and influenza virus, and the photocatalytic degradation of acetaldehyde (C 2H 4O) and formaldehyde (CH 2O) has been investigated. XRD and SEM results show that anatase TiO 2 successfully coats on the surface of Ti coatings, while the crystal structure of anatase TiO 2 can be increased during the following oxidation in air. The catalytic activity towards methylene blue of TiO 2/Ti coating balls has been significantly enhanced by the followed oxidation in air, showing a very satisfying photocatalytic degradation of C 2H 4O and CH 2O. Notably, the TiO 2/Ti photocatalyst coating balls demonstrate a significant antiviral activity, with a decrease rate of virus reached 99.96% for influenza virus and 99.99% for SARS-CoV-2.

          Related collections

          Most cited references32

          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          A new coronavirus associated with human respiratory disease in China

          Emerging infectious diseases, such as severe acute respiratory syndrome (SARS) and Zika virus disease, present a major threat to public health 1–3 . Despite intense research efforts, how, when and where new diseases appear are still a source of considerable uncertainty. A severe respiratory disease was recently reported in Wuhan, Hubei province, China. As of 25 January 2020, at least 1,975 cases had been reported since the first patient was hospitalized on 12 December 2019. Epidemiological investigations have suggested that the outbreak was associated with a seafood market in Wuhan. Here we study a single patient who was a worker at the market and who was admitted to the Central Hospital of Wuhan on 26 December 2019 while experiencing a severe respiratory syndrome that included fever, dizziness and a cough. Metagenomic RNA sequencing 4 of a sample of bronchoalveolar lavage fluid from the patient identified a new RNA virus strain from the family Coronaviridae, which is designated here ‘WH-Human 1’ coronavirus (and has also been referred to as ‘2019-nCoV’). Phylogenetic analysis of the complete viral genome (29,903 nucleotides) revealed that the virus was most closely related (89.1% nucleotide similarity) to a group of SARS-like coronaviruses (genus Betacoronavirus, subgenus Sarbecovirus) that had previously been found in bats in China 5 . This outbreak highlights the ongoing ability of viral spill-over from animals to cause severe disease in humans.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Electrochemical Photolysis of Water at a Semiconductor Electrode

              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              SARS-CoV-2 vaccines in development

              Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) was first reported in late 2019 in China and is the causative agent of the coronavirus disease 2019 (COVID-19) pandemic. To mitigate the effects of the virus on public health, the economy and society, a vaccine is urgently needed. Here I review the development of vaccines against SARS-CoV-2. Development was initiated when the genetic sequence of the virus became available in early January 2020, and has moved at an unprecedented speed: a phase I trial started in March 2020 and there are currently more than 180 vaccines at various stages of development. Data from phase I and phase II trials are already available for several vaccine candidates, and many have moved into phase III trials. The data available so far suggest that effective and safe vaccines might become available within months, rather than years.
                Bookmark

                Author and article information

                Contributors
                luyun@faculty.chiba-u.jp
                Journal
                Sci Rep
                Sci Rep
                Scientific Reports
                Nature Publishing Group UK (London )
                2045-2322
                26 September 2022
                26 September 2022
                2022
                : 12
                : 16038
                Affiliations
                [1 ]GRID grid.136304.3, ISNI 0000 0004 0370 1101, Department of Mechanical Engineering, , Chiba University, ; Chiba, 2638522 Japan
                [2 ]GRID grid.265125.7, ISNI 0000 0004 1762 8507, Bio-Nano Electronics Research Centre, , Toyo University, ; Saitama, 3508585 Japan
                [3 ]GRID grid.413109.e, ISNI 0000 0000 9735 6249, College of Mechanical Engineering, , Tianjin University of Science and Technology, ; Tianjin, 300222 China
                [4 ]Chiba Industrial Technology Research Institute, Chiba, 2640017 Japan
                Article
                20459
                10.1038/s41598-022-20459-2
                9512902
                36163418
                ed6e3c6d-afa5-4e97-9b8b-bdc966014c0e
                © The Author(s) 2022

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 12 July 2022
                : 13 September 2022
                Categories
                Article
                Custom metadata
                © The Author(s) 2022

                Uncategorized
                photocatalysis,pollution remediation
                Uncategorized
                photocatalysis, pollution remediation

                Comments

                Comment on this article