Structural and luminescence properties of silicon nanocrystals in colloidal solutions for bio applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00466586" target="_blank" >RIV/68378271:_____/16:00466586 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/pssa.201600385" target="_blank" >http://dx.doi.org/10.1002/pssa.201600385</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pssa.201600385" target="_blank" >10.1002/pssa.201600385</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural and luminescence properties of silicon nanocrystals in colloidal solutions for bio applications

Popis výsledku v původním jazyce

Luminescent silicon nanoparticles are promising for biological and me-dical research as luminescent markers, for drug delivery or toxicity studies. For intracellular biological research, it is necessary to prepare water-based or isotonic colloidal solutions of na-noparticles which are stable and non-toxic. In this work, we compare structural and optical properties of silicon nanocrystals in colloidal solutions, obtained by two fundamentally different methods: A microplasma-based synthesis (a “bottom-up techni-que) and porous silicon prepared by electrochemical etching of a silicon wafer (a “top-down method). Low-pressure microwave plasma synthesis produces 5-8 nm large silicon nanocrystals while the porous siliconcontains clusters 60-70 nm in diameter, composed of nanometer-sized luminescent nanocrystals. We have attempted to stabilize the nanoparticles via modification of the their surface by methyl groups.n

Název v anglickém jazyce

Structural and luminescence properties of silicon nanocrystals in colloidal solutions for bio applications

Popis výsledku anglicky

Luminescent silicon nanoparticles are promising for biological and me-dical research as luminescent markers, for drug delivery or toxicity studies. For intracellular biological research, it is necessary to prepare water-based or isotonic colloidal solutions of na-noparticles which are stable and non-toxic. In this work, we compare structural and optical properties of silicon nanocrystals in colloidal solutions, obtained by two fundamentally different methods: A microplasma-based synthesis (a “bottom-up techni-que) and porous silicon prepared by electrochemical etching of a silicon wafer (a “top-down method). Low-pressure microwave plasma synthesis produces 5-8 nm large silicon nanocrystals while the porous siliconcontains clusters 60-70 nm in diameter, composed of nanometer-sized luminescent nanocrystals. We have attempted to stabilize the nanoparticles via modification of the their surface by methyl groups.n

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

Physica Status Solidi. A

ISSN

1862-6300

e-ISSN

—

Svazek periodika

213

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

2873-2878

Kód UT WoS článku

000388323200012

EID výsledku v databázi Scopus

2-s2.0-84992317448