Superior performance of macroporous over gel type polystyrene as a support for the development of photo-bactericidal materials
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Other documents of the author: Felip-León, Carles; Arnau del Valle, Carla; Pérez-Laguna, Vanesa; Millán-Lou, María Isabel; Miravet, Juan; Mikhailov, Maxim; Sokolov, Maxim; Rezusta López, Antonio; Galindo, Francisco
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7013
comunitat-uji-handle3:10234/8638
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Title
Superior performance of macroporous over gel type polystyrene as a support for the development of photo-bactericidal materialsAuthor (s)
Date
2017-07Publisher
Royal Society of ChemistryType
info:eu-repo/semantics/articlePublisher version
http://pubs.rsc.org/-/content/articlehtml/2017/tb/c7tb01478cVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
A hexanuclear molybdenum cluster [Mo6I8Ac6]2− (1) has been ionically bound onto macroporous (Pmp) and gel-type (Pgel) resins and their performance as materials for the photodynamic inactivation of microorganisms has ... [+]
A hexanuclear molybdenum cluster [Mo6I8Ac6]2− (1) has been ionically bound onto macroporous (Pmp) and gel-type (Pgel) resins and their performance as materials for the photodynamic inactivation of microorganisms has been studied. It has been found that 1@Pmp in combination with light is able to reduce 99.999999% of the population of Gram-positive Staphylococcus aureus whereas the activity of 1@Pgel is limited to a 99.99% reduction at the same light dose. The same trend is observed with Gram-negative Pseudomonas aeruginosa. A comprehensive study of both materials has been performed using confocal laser scanning microscopy, thermogravimetric analysis, nitrogen porosimetry, steady state and time resolved fluorometries and diffuse reflectance spectroscopy. The photochemical generation of singlet oxygen (1O2) has been assessed using 9,10-dimethylanthracene as a trap for this reactive oxygen species. It can be concluded that the nature of the polymeric support is of paramount importance for the development of surfaces with bactericidal properties. [-]
Investigation project
Ministerio de Economía y Competitividad of Spain (grant CTQ2015-71004-R) ; Universitat Jaume I (grant P1.1B2015-76) ; Spanish Ministry of Science and Innovation and the European Regional Development Fund. (grant CTQ2013-48767-C3-2-R) ; Ministerio de Economía y Competitividad of Spain for a FPI fellowship (BES-2013-063296)Rights
© The Royal Society of Chemistry 2017
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info:eu-repo/semantics/openAccess
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