Global Patent Index - EP 2282972 A2

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

EP 2282972 A2 20110216 (FR)

Application

EP 09750044 A 20090505

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)

C01B 33/02 (2013.01); C30B 29/06 (2013.01); C30B 29/605 (2013.01); C30B 33/00 (2013.01)

Citation (search report)

See references of WO 2009141563A3

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