Size and Optically Tunable Ethyl Cellulose Nanoparticles as Carriers for Organic UV Filters

ChemNanoMat ◽  
2018 ◽  
Vol 4 (3) ◽  
pp. 301-308 ◽  
Author(s):  
Douglas R. Hayden ◽  
Heleen V. M. Kibbelaar ◽  
Arnout Imhof ◽  
Krassimir P. Velikov
Keyword(s):  
Ethyl Cellulose ◽  
Uv Filters ◽  
Cellulose Nanoparticles ◽  
Organic Uv Filters

scholarly journals Biodegradation of two organic UV-Filters by single bacteria strains

2021 ◽  
Author(s):  
Florentina Laura Chiriac ◽  
Catalina Stoica ◽  
Iuiana Paun ◽  
Florinela Pirvu ◽  
Toma Galaon ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Emerging Contaminants ◽  
Degradation Products ◽  
Aquatic Organisms ◽  
Uv Filters ◽  
Bacterial Strains ◽  
Gram Negative ◽  
Biodegradation Process ◽  
Salmonella Thyphimurium ◽  
Organic Uv Filters

Abstract Organic UV-filters, including 4-hydroxybenzophenone (4-HBP) and 2,4-dihydroxybenzophenone (BP-1), are persistent emerging contaminants whose presence in the environment poses a threat to aquatic organisms due to their endocrine disruptor’s properties. For this reason, finding suitable technological processes for their safety and efficient removal from the environment represent a priority for the scientific community. To the author’s knowledge, until now, there are no studies reporting the biodegradation of 4-HBP and BP-1 by a single bacteria strain. In this paper, there were tested the 4-HBP and BP-1 biodegradation potential of two Gram-positive (Staphylococcus aureus and Enterococcus faecalis) and two Gram-negative (Salmonella typhimurium and Serratia rubidae). The 4-HPB biodegradation process was observed only in the presence of Gram-negative bacterial strains. Thus, the biodegradation rates of 4-HBP reached up to 12.7% after 24h of incubation in presence of Salmonella thyphimurium and up to 24.0% after 24h of incubation with Serratia rubidae. Staphylococcus aureus was able to biodegrade 26.7% of BP-1, while Salmonella thiphymurium was able to biodegrade 14.7% of BP-1 after 24h of incubation. Their biodegradation products generated during the 4-HBP biodegradation process by Serratia rubidae were analyzed through LC-MS/MS analysis. The (bio)degradation products were benzophenone and a multi-hydroxylated derivative of 4-HBP and the degradation pathways were proposed. The data obtained in this study gave important information regarding the 4-HBP and BP-1 potential biodegradation by single bacterial strains.

scholarly journals Per capita loads of organic UV filters in Australian wastewater influent

2019 ◽  
Vol 662 ◽  
pp. 134-140 ◽  
Author(s):  
Elissa O'Malley ◽  
Jake W. O'Brien ◽  
Ben Tscharke ◽  
Kevin V. Thomas ◽  
Jochen F. Mueller
Keyword(s):  
Uv Filters ◽  
Per Capita ◽  
Organic Uv Filters

scholarly journals Microencapsulated UV filter@ZIF-8 based sunscreens for broad spectrum UV protection

RSC Advances ◽  
2020 ◽  
Vol 10 (56) ◽  
pp. 34254-34260 ◽  
Author(s):  
Anu Sharma ◽  
Abhishek Kumar ◽  
Changning Li ◽  
Rakesh Kumar Sharma ◽  
Mark T. Swihart
Keyword(s):  
Broad Spectrum ◽  
Uv Protection ◽  
Uv Filters ◽  
Uv Filter ◽  
Organic Uv Filters

Encapsulation of organic UV filters in ZIF-8 nanoparticles produces a safer, more stable, and more effective sunscreen.

Rapid characterization of organic UV filters and their photoproducts in sunscreens by thermal desorption electrospray ionization mass spectrometry for the photostability study

2019 ◽  
Vol 11 (47) ◽  
pp. 6013-6022 ◽  
Author(s):  
Yi-Tzu Cho ◽  
Hung Su ◽  
I-Ching Huang ◽  
Ching-Yu Lai ◽  
You-Da Tsai
Keyword(s):  
Mass Spectrometry ◽  
Electrospray Ionization ◽  
Thermal Desorption ◽  
Electrospray Ionization Mass Spectrometry ◽  
Desorption Electrospray Ionization ◽  
Ionization Mass ◽  
Uv Filters ◽  
Rapid Characterization ◽  
Organic Uv Filters

UV filters and their photoproducts in sunscreen formulations are directly characterized by TD-ESI/MS. This is a highly viable strategy to study the photostability of highly complex and diverse sunscreen formulations in the market.

scholarly journals Innovative Bio-Based Organic UV-A and Blue Light Filters from Meldrum’s Acid

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2178 ◽  
Author(s):  
Cédric Peyrot ◽  
Matthieu M. Mention ◽  
Fanny Brunissen ◽  
Patrick Balaguer ◽  
Florent Allais
Keyword(s):  
Endocrine Disruption ◽  
Hydroxycinnamic Acid ◽  
Uv Filters ◽  
Meldrum's Acid ◽  
Meldrum’S Acid ◽  
Cosmetic Industry ◽  
Light Filters ◽  
Photo Stability ◽  
Organic Uv Filters ◽  
Meldrum's Acid Derivatives

Faced with the ban of some organic UV filters such as octinoxate or avobenzone, especially in Hawaii, it became essential to offer new alternatives that are both renewable and safe for humans and the environment. In this context, a class of bio-based molecules displaying interesting UV filter properties and great (photo)stability has been developed from Meldrum’s acid and bio-based and synthetic p-hydroxycinnamic acids, furans and pyrroles. Moreover, p-hydroxycinnamic acid-based Meldrum’s derivatives possess valuable secondary activities sought by the cosmetic industry such as antioxidant and anti-tyrosinase properties. The evaluation of the properties of mixture of judiciously chosen Meldrum’s acid derivatives highlighted the possibility to modulate secondary activity while maintaining excellent UV protection. Meldrum’s acid derivatives are not only competitive when benchmarked against organic filters currently on the market (i.e., avobenzone), but they also do not exhibit any endocrine disruption activity.

Sorption and degradation of selected organic UV filters (BM-DBM, 4-MBC, and OD-PABA) in laboratory water-sediment systems

2016 ◽  
Vol 23 (10) ◽  
pp. 9679-9689 ◽  
Author(s):  
Sheng Li ◽  
Guanghua Lu ◽  
Zhengxin Xie ◽  
Jiannan Ding ◽  
Jianchao Liu ◽  
...  
Keyword(s):  
Uv Filters ◽  
Laboratory Water ◽  
Organic Uv Filters

Occurrence, Distribution, and Fate of Organic UV Filters in Coral Communities

2017 ◽  
Vol 51 (8) ◽  
pp. 4182-4190 ◽  
Author(s):  
Mirabelle M. P. Tsui ◽  
James C. W. Lam ◽  
T.Y. Ng ◽  
P. O. Ang ◽  
Margaret B. Murphy ◽  
...  
Keyword(s):  
Uv Filters ◽  
Coral Communities ◽  
Organic Uv Filters

Biomarker-based assessment of sublethal toxicity of organic UV filters (ensulizole and octocrylene) in a sentinel marine bivalve Mytilus edulis

2021 ◽  
pp. 149171
Author(s):  
Halina Falfushynska ◽  
Eugene P. Sokolov ◽  
Kathrin Fisch ◽  
Hatem Gazie ◽  
Detlef E. Schulz-Bull ◽  
...  
Keyword(s):  
Mytilus Edulis ◽  
Marine Bivalve ◽  
Sublethal Toxicity ◽  
Uv Filters ◽  
Organic Uv Filters
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