Photosensitized Production of Singlet Oxygen via C60 Fullerene Covalently Attached to Functionalized Silica-coated Stainless-Steel Mesh: Remote Bacterial and Viral Inactivation
- Title
- Photosensitized Production of Singlet Oxygen via C60 Fullerene Covalently Attached to Functionalized Silica-coated Stainless-Steel Mesh: Remote Bacterial and Viral Inactivation
- Author
- 이승현
- Keywords
- C60 fullerene; Remote disinfection; Photosensitized oxidation; Singlet oxygen; Hydroxyl radical
- Issue Date
- 2020-03
- Publisher
- ELSEVIER
- Citation
- APPLIED CATALYSIS B-ENVIRONMENTAL, v. 270, page. 118862-118870
- Abstract
- This study demonstrates the capability of a C60-based sensitizer to remotely inactivate bacteria and viruses in air. The nucleophilic addition of amine groups attached to SiO2 particles (used as free-standing support or as hosts electrosprayed on a stainless-steel mesh) to the double bonds of C60 led to the production of recyclable sensitizers. The high-yield production of singlet oxygen (1O2) from the immobilized C60 was established by studying the effects of 1O2 quenchers and enhancer on furfuryl alcohol (FFA) oxidation efficiency and wavelength-dependent FFA decay kinetics. We monitored the inactivation rates of Staphylococcus aureus and MS-2 bacteriophage in petri dishes at predetermined distances from the 1O2 source and identified the probability of remote microbial inactivation via 1O2, which occurred up to 10-15 cm from the source. This result accorded with epoxy moiety occurrence as an indication of singlet oxygenation in the Fourier Transform-Infrared spectra of cis-polybutadiene in remote positions.
- URI
- https://www.sciencedirect.com/science/article/pii/S0926337320302770https://repository.hanyang.ac.kr/handle/20.500.11754/163074
- ISSN
- 0926-3373
- DOI
- 10.1016/j.apcatb.2020.118862
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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