NDLI: Colloidal solutions of luminescent porous silicon clusters with different cluster sizes

Content Provider	PubMed Central
Author	Herynková, Kateřina Podkorytov, Egor Šlechta, Miroslav Cibulka, Ondřej Leitner, Jindřich Ivan, Pelant
Copyright Year	2014
Abstract	Silicon nanocrystals (Si-ncs) are promising for biological studies due to their supposed low cytotoxicity, good biocompatibility and biodegradability in living organisms. However, the bioresearchers' focus on Si-ncs has lasted only for a few recent years, and detailed studies of the interaction of various types of Si-ncs with biological environment are still rare. Suitable size and solubility of the Si-ncs in water-based isotonic solutions are important towards bringing the nanocrystals inside the living cells. We have prepared colloidal solutions of luminescent porous silicon of different cluster sizes in methanol, water and phosphate-buffered saline (PBS). By combination of ultrasonic treatment with filtration, we have obtained two different silicon cluster sizes in methanol (120 and 525 nm) and three different cluster sizes (85, 210 and 1,500 nm) in PBS. Nanoclusters of heavily oxidized porous silicon are hydrophilic and well soluble in water and/or PBS. They can be further used for studies on the biocompatibility of these materials and may be potentially employed as luminescent markers in living cells in biological research.
Related Links	http://dx.doi.org/10.1186/1556-276x-9-478
Starting Page	478
File Format	PDF
ISSN	1556276X
e-ISSN	1556276X
Journal	Nanoscale Research Letters
Issue Number	1
Volume Number	9
Language	English
Publisher	Springer
Publisher Date	2014-01-01
Access Restriction	Open
Rights Holder	Springer
Subject Keyword	Materials Science(all) Condensed Matter Physics Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Condensed Matter Physics

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