Reducing Adverse Effects from UV Sunscreens by Zeolite Encapsulation: Comparison of Oxybenzone in Solution and in Zeolites

Chrétien, Michelle N.; Heafey, Eve; Scaiano, Juan C.

doi:10.1111/j.1751-1097.2009.00644.x

Cited by 29 publications

(6 citation statements)

References 49 publications

(81 reference statements)

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“…There is also some controversy in observed adverse dermatological effects from skin-OB contact. ,− Elucidating the energy dissipation mechanism within OB could aid the selection and design of better sunscreens, or suggest improvements in the use of OB itself. For example, recent studies have suggested that the adverse effects of skin-OB contact might be reduced through the use of zeolite encapsulation. , …”

mentioning

confidence: 99%

Probing the Ultrafast Energy Dissipation Mechanism of the Sunscreen Oxybenzone after UVA Irradiation

Baker¹,

Horbury²,

Greenough³

et al. 2015

J. Phys. Chem. Lett.

103

141

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(2015) Probing the ultrafast energy dissipation mechanism of the sunscreen oxybenzone after UVA irradiation. Journal of Physical Chemistry Letters, 6 (8). pp. 1363-1368. Permanent WRAP URL:http://wrap.warwick.ac.uk/83198 Copyright and reuse:The Warwick Research Archive Portal (WRAP) makes this work by researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-for profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. Publisher's statement:This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry Letters, copyright © American Chemical Society after peer review and technical editing by the publisher.To access the final edited and published work see http://dx.doi.org/10.1021/acs.jpclett.5b00417 A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP url' above for details on accessing the published version and note that access may require a subscription. ABSTRACT: Oxybenzone is a common constituent of many commercially available sunscreens providing photoprotection from ultraviolet light incident on the skin. Femtosecond transient electronic and vibrational absorption spectroscopies have been used to investigate the non-radiative relaxation pathways of oxybenzone in cyclohexane and methanol after excitation in the UVA region. The present data suggest that the photoprotective properties of oxybenzone can be understood in terms of an initial ultrafast excited state enol  keto tautomerization, followed by efficient internal conversion and subsequent vibrational relaxation to the ground state (enol) tautomer.TOC GRAPHIC

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mentioning

confidence: 99%

Probing the Ultrafast Energy Dissipation Mechanism of the Sunscreen Oxybenzone after UVA Irradiation

Baker¹,

Horbury²,

Greenough³

et al. 2015

J. Phys. Chem. Lett.

103

141

View full text Add to dashboard Cite

show abstract

“…Finally, among other inorganic materials, mesoporous silicates were proposed to develop particulate carriers for chemical sunscreens [22,39]. Exploiting their high surface area, narrow poresize distribution and one-dimensional hexagonally ordered pore structure, these materials can represent suitable hosts for organic sunscreens [40].…”

Section: Inorganic Materialsmentioning

confidence: 99%

The real value of novel particulate carriers for sunscreen formulation

Blasi

Schoubben

Giovagnoli

et al. 2011

Expert Review of Dermatology

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Solar radiation is a consolidated environmental risk factor in the development of non-melanoma skin cancer and is responsible for sunburn and skin aging. By consequence, the use of sunscreen products is considered the best approach for skin protection. Today, sunscreen products are based on conventional formulations, such as creams, milks or gels, which do not protect chemical ultraviolet filters from photodegradation and allow their systemic absorption. In this article, innovative systems, namely clays, cyclodextrins, polymer and lipid microparticles, are discussed as potential sunscreen carriers to be embedded in the aforementioned formulations. Their capability to improve sunscreen performances, to reduce their potential toxicity issues and to overcome formulation problems are examined also

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“…To circumvent these limitations, considerable research efforts have been made to develop a blend of sunscreen and sunblock by encapsulating UV-absorbing molecules into biocompatible polymers − or inorganic materials − and by reducing the size of the UV-blocking particles to the nanometer scale. However, these efforts have resulted in only a slight mitigation of the negative side effects without resolving the fundamental problems.…”

Section: Introductionmentioning

confidence: 99%

Biocompatible Organosilica Nanoparticles with Self-Encapsulated Phenyl Motifs for Effective UV Protection

Yoo

Kim²,

Chang

et al. 2020

ACS Appl. Mater. Interfaces

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With increasing ozone depletion, ultraviolet (UV) exposure from sunlight has become a significant health risk. Although commercially available sun protectants provide reasonable protection, they have limitations in terms of safety and aesthetics. Here, we have developed biocompatible and biodegradable sunscreens by facile synthesis of organosilica nanoparticles (o-SNPs) with self-encapsulated phenyl motifs using phenylsilane precursors. The physical structure of o-SNPs is elaborately controlled such that they are large enough to reflect UVA but small enough to be imperceptible when applied on the skin. The chemically attached phenyl motifs to o-SNPs facilitate filtering UVB via their delocalized π-orbitals. The o-SNPs generate a negligible amount of reactive oxygen species under UV exposure. Ex vivo two-photon microscopy reveals that the o-SNPs tend to adhere to the outer layers of skin without further intradermal penetration, resulting in less skin irritation. In vivo UV protection tests confirmed the excellent sunscreen effect of o-SNPs compared with conventional organic and inorganic UV filters.

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Reducing Adverse Effects from UV Sunscreens by Zeolite Encapsulation: Comparison of Oxybenzone in Solution and in Zeolites

Cited by 29 publications

References 49 publications

Probing the Ultrafast Energy Dissipation Mechanism of the Sunscreen Oxybenzone after UVA Irradiation

Probing the Ultrafast Energy Dissipation Mechanism of the Sunscreen Oxybenzone after UVA Irradiation

The real value of novel particulate carriers for sunscreen formulation

Biocompatible Organosilica Nanoparticles with Self-Encapsulated Phenyl Motifs for Effective UV Protection

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