Superhydrophilic Polystyrene Nanofiber Materials Generating O-2((1)Delta(g)): Postprocessing Surface Modifications toward Efficient Antibacterial Effect

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10288658" target="_blank" >RIV/00216208:11310/14:10288658 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/am502917w" target="_blank" >http://dx.doi.org/10.1021/am502917w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/am502917w" target="_blank" >10.1021/am502917w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Superhydrophilic Polystyrene Nanofiber Materials Generating O-2((1)Delta(g)): Postprocessing Surface Modifications toward Efficient Antibacterial Effect

Popis výsledku v původním jazyce

The surfaces of electrospun polystyrene (PS) nanofiber materials with encapsulated 1% w/w 5,10,15,20-tetraphenylporphyrin (TPP) photosensitizer were modified through sulfonation, radio frequency (RF) oxygen plasma treatment, and polydopamine coating. The nanofiber materials exhibited efficient photogeneration of singlet oxygen. The postprocessing modifications strongly increased the wettability of the pristine hydrophobic PS nanofibers without causing damage to the nanofibers, leakage of the photosensitizer, or any substantial change in the oxygen permeability of the inner bulk of the polymer nanofiber. The increase in the surface wettability yielded a significant increase in the photo-oxidation of external polar substrates and in the antibacterial activity of the nanofibers in aqueous surroundings. The results reveal the crucial role played by surface hydrophilicity/wettability in achieving the efficient photo-oxidation of a chemical substrate/biological target at the surface of a material generating O-2((1)Delta(g)) with a short diffusion length.

Název v anglickém jazyce

Superhydrophilic Polystyrene Nanofiber Materials Generating O-2((1)Delta(g)): Postprocessing Surface Modifications toward Efficient Antibacterial Effect

Popis výsledku anglicky

The surfaces of electrospun polystyrene (PS) nanofiber materials with encapsulated 1% w/w 5,10,15,20-tetraphenylporphyrin (TPP) photosensitizer were modified through sulfonation, radio frequency (RF) oxygen plasma treatment, and polydopamine coating. The nanofiber materials exhibited efficient photogeneration of singlet oxygen. The postprocessing modifications strongly increased the wettability of the pristine hydrophobic PS nanofibers without causing damage to the nanofibers, leakage of the photosensitizer, or any substantial change in the oxygen permeability of the inner bulk of the polymer nanofiber. The increase in the surface wettability yielded a significant increase in the photo-oxidation of external polar substrates and in the antibacterial activity of the nanofibers in aqueous surroundings. The results reveal the crucial role played by surface hydrophilicity/wettability in achieving the efficient photo-oxidation of a chemical substrate/biological target at the surface of a material generating O-2((1)Delta(g)) with a short diffusion length.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA13-12496S" target="_blank" >GA13-12496S: Multifunkční fotoaktivní nanovlákenné materiály</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS applied materials &amp; interfaces

ISSN

1944-8244

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

13007-13014

Kód UT WoS článku

000340446300143

EID výsledku v databázi Scopus

2-s2.0-84906257958