Agglomeration of luminescent porous silicon nanoparticles in colloidal solutions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00470960" target="_blank" >RIV/68378271:_____/16:00470960 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/16:10330455

Výsledek na webu

<a href="http://dx.doi.org/10.1186/s11671-016-1593-4" target="_blank" >http://dx.doi.org/10.1186/s11671-016-1593-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s11671-016-1593-4" target="_blank" >10.1186/s11671-016-1593-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Agglomeration of luminescent porous silicon nanoparticles in colloidal solutions

Popis výsledku v původním jazyce

We have prepared colloidal solutions of porous silicon nanoparticles in methanol, water and Phosphate Buffered Saline (PBS). Even that the size of the nanoclusters is between 60-500 nm, due to their highly porous structure the nanoparticles show strong visible luminescence in the orange-red spectral region. Hydrophilic behavior and good solubility of the nanoclusters in water and water-based solutions was obtained by adding hydrogen peroxide into the etching bath during preparation. By simple filtration of the solutions with syringe filters we have extracted smaller nanoclusters with sizes of approx. 60-70 nm. When the samples were left at ambient conditions for several weeks, the typical nanocluster size increased to approx. 330-400 nm and then remained stable. However, both freshly filtered and agglomerated samples of porous silicon in water and PBS solutions can be further used for biological studies such as for biocompatibility or as luminescent markers in living cells.

Název v anglickém jazyce

Agglomeration of luminescent porous silicon nanoparticles in colloidal solutions

Popis výsledku anglicky

We have prepared colloidal solutions of porous silicon nanoparticles in methanol, water and Phosphate Buffered Saline (PBS). Even that the size of the nanoclusters is between 60-500 nm, due to their highly porous structure the nanoparticles show strong visible luminescence in the orange-red spectral region. Hydrophilic behavior and good solubility of the nanoclusters in water and water-based solutions was obtained by adding hydrogen peroxide into the etching bath during preparation. By simple filtration of the solutions with syringe filters we have extracted smaller nanoclusters with sizes of approx. 60-70 nm. When the samples were left at ambient conditions for several weeks, the typical nanocluster size increased to approx. 330-400 nm and then remained stable. However, both freshly filtered and agglomerated samples of porous silicon in water and PBS solutions can be further used for biological studies such as for biocompatibility or as luminescent markers in living cells.

Druh

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

CEP obor

BO - Biofyzika

OECD FORD obor

—

Projekt

—

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

Nanoscale Research Letters

ISSN

1556-276X

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

Aug

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

—

Kód UT WoS článku

000382004200002

EID výsledku v databázi Scopus

2-s2.0-84983261928