EP 2282972 A2 20110216 - SURFACE TREATMENT OF SILICON NANOPARTICLES
Title (en)
SURFACE TREATMENT OF SILICON NANOPARTICLES
Title (de)
OBERFLÄCHENBEHANDLUNG VON SLIZIUMNANOPARTIKELN
Title (fr)
TRAITEMENT DE SURFACE DE NANOPARTICULES DE SILICIUM
Publication
Application
Priority
- FR 2009050831 W 20090505
- FR 0853008 A 20080506
Abstract (en)
[origin: WO2009141563A2] The present invention relates to the treatment of photoluminescent silicon nanoparticles in order to give them surface functionalities, for example amine radicals or other radicals, that favour their use especially in biology for labelling applications. A reaction is then applied to the nanoparticles in order to create a surface coating that gives the nanoparticles these functionalities, especially a protection against dissolution in an aqueous medium. The process in the sense of the invention comprises, prior to this coating reaction, a passivation of the silicon nanoparticles that favours the creation of bonds of Si-OH type at the surface, this type of bond making it possible to obtain a multiplicity of functionalities including, in particular, amines, thiols, polyethylene glycol, as surface radicals.
IPC 8 full level
C01B 33/02 (2006.01)
CPC (source: EP US)
C01B 33/02 (2013.01 - EP US); C30B 29/06 (2013.01 - EP US); C30B 29/605 (2013.01 - EP US); C30B 33/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2009141563A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
FR 2930937 A1 20091113; FR 2930937 B1 20100820; EP 2282972 A2 20110216; JP 2011519812 A 20110714; US 2011059267 A1 20110310; WO 2009141563 A2 20091126; WO 2009141563 A3 20100429
DOCDB simple family (application)
FR 0853008 A 20080506; EP 09750044 A 20090505; FR 2009050831 W 20090505; JP 2011507974 A 20090505; US 99084209 A 20090505