Gold nanoring-enhanced generation of singlet oxygen: an intricate correlation with surface plasmon resonance and polyelectrolyte bilayers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F16%3A00469024" target="_blank" >RIV/67985882:_____/16:00469024 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c6ra22814c" target="_blank" >http://dx.doi.org/10.1039/c6ra22814c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c6ra22814c" target="_blank" >10.1039/c6ra22814c</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gold nanoring-enhanced generation of singlet oxygen: an intricate correlation with surface plasmon resonance and polyelectrolyte bilayers

Popis výsledku v původním jazyce

We report the dependence of gold nanoring (Au NR)-enhanced singlet oxygen (O-1(2)) generation on localized surface plasmon resonance (LSPR) wavelength and separation distance between Au NR and photosensitizers. Using Au NR of tunable LSPR and poly(styrene sulfonate) (PSS) and poly(allylamine hydrochloride) (PAH) bilayers via layer-by-layer (LbL) assembly on Au NR as molecular spacers, we found that O-1(2) generation from Al(III) phthalocyanine chloride tetrasulfonic acid (AlPcS4) conjugated on the Au NR can be optimized through proper combination of LSPR and the separation distance. More importantly, O-1(2) enhancement follows a different correlation with the separation distance compared to that of AlPcS4 fluorescence enhancement. Our experimental findings are consistent with the prediction by boundary element method (BEM) calculations. Our study paves the way to the design of LSPR-enhanced O-1(2) generation for improved efficacy of photodynamic therapy of cancers

Název v anglickém jazyce

Gold nanoring-enhanced generation of singlet oxygen: an intricate correlation with surface plasmon resonance and polyelectrolyte bilayers

Popis výsledku anglicky

We report the dependence of gold nanoring (Au NR)-enhanced singlet oxygen (O-1(2)) generation on localized surface plasmon resonance (LSPR) wavelength and separation distance between Au NR and photosensitizers. Using Au NR of tunable LSPR and poly(styrene sulfonate) (PSS) and poly(allylamine hydrochloride) (PAH) bilayers via layer-by-layer (LbL) assembly on Au NR as molecular spacers, we found that O-1(2) generation from Al(III) phthalocyanine chloride tetrasulfonic acid (AlPcS4) conjugated on the Au NR can be optimized through proper combination of LSPR and the separation distance. More importantly, O-1(2) enhancement follows a different correlation with the separation distance compared to that of AlPcS4 fluorescence enhancement. Our experimental findings are consistent with the prediction by boundary element method (BEM) calculations. Our study paves the way to the design of LSPR-enhanced O-1(2) generation for improved efficacy of photodynamic therapy of cancers

Druh

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

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

—

Projekt

<a href="/cs/project/GBP205%2F12%2FG118" target="_blank" >GBP205/12/G118: Nanobiofotonika pro medicínu budoucnosti</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

RSC Advances

ISSN

2046-2069

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

106

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

104819-104826

Kód UT WoS článku

000388111900112

EID výsledku v databázi Scopus

2-s2.0-84994429431