title: Antibacterial, Antiviral, and Oxygen-Sensing Nanoparticles Prepared from Electrospun Materials.
abstract: A simple nanoprecipitation method was used for preparation of stable photoactive polystyrene nanoparticles (NPs, diameter 30 ± 10 nm) from sulfonated electrospun polystyrene nanofiber membranes with encapsulated 5,10,15,20-tetraphenylporphyrin (TPP) or platinum octaethylporphyrin (Pt-OEP). The NPs prepared with TPP have strong antibacterial and antiviral properties and can be applied to the photooxidation of external substrates based on photogenerated singlet oxygen. In contrast to nanofiber membranes, which have limited photooxidation ability near the surface, NPs are able to travel toward target species/structures. NPs with Pt-OEP were used for oxygen sensing in aqueous media, and they presented strong linear responses to a broad range of oxygen concentrations. The nanofiber membranes can be applied not only as a source of NPs but also as an effective filter for their removal from solution.
authors: Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic.
authors: Petr
authors: P
authors: Henke
authors: Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic , 250 68 Řež, Czech Republic.
authors: Kaplan
authors: K
authors: Kirakci
authors: J. Heyrovský Institute of Physical Chemistry, v.v.i., Czech Academy of Sciences , Dolejškova 3, 182 23 Praha 8, Czech Republic.
authors: Pavel
authors: P
authors: Kubát
authors: Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic.
authors: Martin
authors: M
authors: Fraiberk
authors: Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic.
authors: Jitka
authors: J
authors: Forstová
authors: Faculty of Science, Charles University in Prague , Hlavova 2030, 128 43 Prague 2, Czech Republic.|Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic , 250 68 Řež, Czech Republic.
authors: Jiří
authors: J
authors: Mosinger
mesh_terms: D000900:Anti-Bacterial Agents; D000998:Antiviral Agents; D053758:Nanoparticles; D010100:Oxygen; D026082:Singlet Oxygen
chemical_list: D000900:Anti-Bacterial Agents; D000998:Antiviral Agents; D026082:Singlet Oxygen; D010100:Oxygen
keywords: antibacterial; antiviral; nanofiber; nanoparticles; oxygen-sensing; singlet oxygen