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22 results

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Shielding of viruses such as SARS-Cov-2 from ultraviolet radiation in particles generated by sneezing or coughing: Numerical simulations of survival fractions.
Hill SC, Mackowski DW, Doughty DC. Hill SC, et al. J Occup Environ Hyg. 2021 Aug;18(8):394-408. doi: 10.1080/15459624.2021.1939877. Epub 2021 Jul 21. J Occup Environ Hyg. 2021. PMID: 34161194
SARS-CoV-2 and other microbes within aerosol particles can be partially shielded from UV radiation. The particles refract and absorb light, and thereby reduce the UV intensity at various locations within the particle. ...The average survival fra …
SARS-CoV-2 and other microbes within aerosol particles can be partially shielded from UV radiation. The particles refra …
Microbial Safety and Quality Evaluation of UV-Treated, Cold-Pressed Colored and Turbid Juices and Beverages.
Usaga J, Worobo RW. Usaga J, et al. J Food Prot. 2018 Sep;81(9):1549-1556. doi: 10.4315/0362-028X.JFP-18-085. J Food Prot. 2018. PMID: 30132718 Free article.
Juices and beverages were UV treated at a constant flow rate of 150 L/h through multiple consecutive passes. The inactivation of aerobic mesophilic bacteria, molds and yeasts, and lactic acid bacteria was also assessed at the cumulative dose that guaranteed a 5-log …
Juices and beverages were UV treated at a constant flow rate of 150 L/h through multiple consecutive passes. The inactivation of aerobic mes …
Venus' Spectral Signatures and the Potential for Life in the Clouds.
Limaye SS, Mogul R, Smith DJ, Ansari AH, Słowik GP, Vaishampayan P. Limaye SS, et al. Astrobiology. 2018 Sep;18(9):1181-1198. doi: 10.1089/ast.2017.1783. Epub 2018 Mar 30. Astrobiology. 2018. PMID: 29600875 Free PMC article.
The lower cloud layer of Venus (47.5-50.5 km) is an exceptional target for exploration due to the favorable conditions for microbial life, including moderate temperatures and pressures (60C and 1 atm), and the presence of micron-sized sulfuric acid aerosols. Nearly a century afte …
The lower cloud layer of Venus (47.5-50.5 km) is an exceptional target for exploration due to the favorable conditions for microbial life, i …
ZnO/TiO2 composites for photocatalytic inactivation of Escherichia coli.
Sethi D, Sakthivel R. Sethi D, et al. J Photochem Photobiol B. 2017 Mar;168:117-123. doi: 10.1016/j.jphotobiol.2017.02.005. Epub 2017 Feb 11. J Photochem Photobiol B. 2017. PMID: 28212518
UV-visible (diffuse) reflectance spectra show titania and ZnO absorbs in the ultraviolet (UV) region whereas ZnO/TiO(2) absorbs both UV and visible light. The shift in absorbance facilitates ZnO/TiO(2) composites to exhibit photocatalytic activity unde …
UV-visible (diffuse) reflectance spectra show titania and ZnO absorbs in the ultraviolet (UV) region whereas ZnO/TiO(2) abs …
A novel formulation technology for baculoviruses protects biopesticide from degradation by ultraviolet radiation.
Wilson K, Grzywacz D, Curcic I, Scoates F, Harper K, Rice A, Paul N, Dillon A. Wilson K, et al. Sci Rep. 2020 Aug 6;10(1):13301. doi: 10.1038/s41598-020-70293-7. Sci Rep. 2020. PMID: 32764606 Free PMC article.
A major constraint on the wider adoption of biopesticides is their susceptibility to the ultraviolet (UV: 290-400 nm) radiation in sunlight, which limits their persistence and efficacy. Here, we describe a novel formulation technology for biopesticides in which the …
A major constraint on the wider adoption of biopesticides is their susceptibility to the ultraviolet (UV: 290-400 nm) radiation …
Inactivation of particle-associated viral surrogates by ultraviolet light.
Templeton MR, Andrews RC, Hofmann R. Templeton MR, et al. Water Res. 2005 Sep;39(15):3487-500. doi: 10.1016/j.watres.2005.06.010. Water Res. 2005. PMID: 16081130 Free article.
This study investigated whether colloid-sized particles can enmesh and protect viruses from 254-nm ultraviolet (UV) light and sought to determine the particle characteristics (e.g. size, chemical composition) that are most relevant in causing a protective eff …
This study investigated whether colloid-sized particles can enmesh and protect viruses from 254-nm ultraviolet (UV) light and …
Fabrication and characterization of cobalt hyaluronic acid nanostructure via gamma irradiation for improving biomedical applications.
El-Batal AI, Nasser HA, Mosallam FM. El-Batal AI, et al. Int J Biol Macromol. 2020 Mar 15;147:1328-1342. doi: 10.1016/j.ijbiomac.2019.10.097. Epub 2019 Nov 23. Int J Biol Macromol. 2020. PMID: 31770562
The morphology and surface appearance of CoHANs has been observed by SEM images. The particles size and shape of CoHANs were estimated by TEM images and was found to be 12.0 nm. ...The present study explored the positive role of CoHANs as an antitumor agent on different ce …
The morphology and surface appearance of CoHANs has been observed by SEM images. The particles size and shape of CoHANs were estimate …
UV 254 nm is more efficient than UV 222 nm in inactivating SARS-CoV-2 present in human saliva.
Sesti-Costa R, Negrão CVZ, Shimizu JF, Nagai A, Tavares RSN, Adamoski D, Costa W, Fontoura MA, da Silva TJ, de Barros A, Girasole A, de Carvalho M, Teixeira VC, Ambrosio ALB, Granja F, Proença-Módena JL, Marques RE, Dias SMG. Sesti-Costa R, et al. Photodiagnosis Photodyn Ther. 2022 Sep;39:103015. doi: 10.1016/j.pdpdt.2022.103015. Epub 2022 Jul 14. Photodiagnosis Photodyn Ther. 2022. PMID: 35843562 Free PMC article.
Ultraviolet (UV) light can inactivate SARS-CoV-2. However, the practicality of UV light is limited by the carcinogenic potential of mercury vapor-based UV lamps. ...In this sense, UV 222 nm irradiation for the inactivation of virus particles in the air and surfaces …
Ultraviolet (UV) light can inactivate SARS-CoV-2. However, the practicality of UV light is limited by the carcinogenic potential of m …
Impact of iron particles in groundwater on the UV inactivation of bacteriophages MS2 and T4.
Templeton MR, Andrews RC, Hofmann R. Templeton MR, et al. J Appl Microbiol. 2006 Sep;101(3):732-41. doi: 10.1111/j.1365-2672.2006.02980.x. J Appl Microbiol. 2006. PMID: 16907824 Free article.
AIMS: To investigate the impact of iron particles in groundwater on the inactivation of two model viruses, bacteriophages MS2 and T4, by 254-nm ultraviolet (UV) light. ...SIGNIFICANCE AND IMPACT OF THE STUDY: While the particle association of the phage in thi …
AIMS: To investigate the impact of iron particles in groundwater on the inactivation of two model viruses, bacteriophages MS2 and T4, …
Bactericidal effect of poly(acrylamide/itaconic acid)-silver nanoparticles synthesized by gamma irradiation against Pseudomonas aeruginosa.
Eid M, Araby E. Eid M, et al. Appl Biochem Biotechnol. 2013 Sep;171(2):469-87. doi: 10.1007/s12010-013-0357-1. Epub 2013 Jul 16. Appl Biochem Biotechnol. 2013. PMID: 23857355
Silver nanoparticles were examined by Fourier-transform infrared, scanning electron microscopic images (SEM), and ultraviolet-visible spectrophotometer. The particle size was determined by X-ray diffraction, transmission electron microscopy (TEM), and dynamic light …
Silver nanoparticles were examined by Fourier-transform infrared, scanning electron microscopic images (SEM), and ultraviolet-visible …
22 results