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Structural and luminescence properties of silicon nanocrystals in colloidal solutions for bio applications
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SYSNO ASEP 0466586 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Structural and luminescence properties of silicon nanocrystals in colloidal solutions for bio applications Tvůrce(i) Herynková, Kateřina (FZU-D) RID
Vorkotter, C. (DE)
Šimáková, Petra (FZU-D)
Benedikt, J. (DE)
Cibulka, Ondřej (FZU-D) RIDZdroj.dok. Physica Status Solidi A : Applications and Materials Science. - : Wiley - ISSN 1862-6300
Roč. 213, č. 11 (2016), s. 2873-2878Poč.str. 6 s. Akce Spring Conference of the European-Materials-Research-Society (E-MRS) Datum konání 02.05.2016 - 06.05.2016 Místo konání Lille Země FR - Francie Typ akce EUR Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova silicon nanoparticles ; porous silicon ; colloidal solutions ; surface modification ; low-pressure microwave plasma synthesis Vědní obor RIV BO - Biofyzika Institucionální podpora FZU-D - RVO:68378271 UT WOS 000388323200012 EID SCOPUS 84992317448 DOI https://doi.org/10.1002/pssa.201600385 Anotace 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.
Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2017
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