EP 2651402 A1 20131023 - PROCESS FOR PREPARING NANOPARTICLES OF TWO POLYAMINO ACIDS OF OPPOSITE CHARGE, ONE OF THE TWO OF WHICH IS IN CHARGE SURPLUS
Title (en)
PROCESS FOR PREPARING NANOPARTICLES OF TWO POLYAMINO ACIDS OF OPPOSITE CHARGE, ONE OF THE TWO OF WHICH IS IN CHARGE SURPLUS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON NANOPARTIKELN AUS ZWEI POLYAMINOSÄUREN VON GEGENSÄTZLICHER LADUNG, EINE DER BEIDEN MIT LADUNGSÜBERSCHUSS
Title (fr)
PROCEDE DE PREPARATION DE NANOPARTICULES DE DEUX POLYAMINO ACIDES DE CHARGE OPPOSEE, DONT L ' UN DES DEUX EST EN EXCES DE CHARGE
Publication
Application
Priority
- FR 1060685 A 20101217
- US 201061424282 P 20101217
- IB 2011055727 W 20111216
Abstract (en)
[origin: US2012156257A1] The present invention relates to a novel method for the preparation of nanoparticles with a diameter smaller than or equal to 500 nm, comprising bringing a solution (1) comprising nanoparticles of a first polyelectrolyte in the charged state, bearing hydrophobic side groups, together with (2) at least one second polyelectrolyte of opposite polarity to that of the first polyelectrolyte, characterized in that the ratio Z of the number of cationic groups relative to the number of anionic groups in the mixture of the two polyelectrolytes is comprised between 0.1 and 0.75 or between 1.3 and 2; and the total mass concentration C of polyelectrolytes is strictly less than 2 mg/g of the mixture.
IPC 8 full level
A61K 9/51 (2006.01); A61K 9/00 (2006.01); A61K 9/10 (2006.01); A61K 31/00 (2006.01); A61K 39/00 (2006.01); A61K 47/48 (2006.01); B82Y 5/00 (2011.01)
CPC (source: EP US)
A61K 9/0019 (2013.01 - EP US); A61K 9/5146 (2013.01 - EP US); A61K 9/5192 (2013.01 - EP US); A61K 31/00 (2013.01 - EP US); A61K 47/645 (2017.07 - EP US); A61K 47/6935 (2017.07 - EP US); B82Y 5/00 (2013.01 - EP US); A61K 9/10 (2013.01 - EP US)
Citation (search report)
See references of WO 2012080986A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
US 2012156257 A1 20120621; CA 2821138 A1 20120621; CN 103379903 A 20131030; EP 2651402 A1 20131023; FR 2968994 A1 20120622; FR 2968994 B1 20121228; JP 2014515002 A 20140626; WO 2012080986 A1 20120621
DOCDB simple family (application)
US 201113329999 A 20111219; CA 2821138 A 20111216; CN 201180067837 A 20111216; EP 11807786 A 20111216; FR 1060685 A 20101217; IB 2011055727 W 20111216; JP 2013543957 A 20111216