摘要:
The present invention relates to gelling compositions, which changes from liquid state to gel state in function of temperature comprising: at least a poloxamer or mixture of poloxamers; at least a gelling agent; and at least an anticancer agent. Said compositions are advantageously used for local administration of an anticancer agent. Said compositions are useful for size-reduction of a tumour before surgical removal of said tumour, for preventing tumour recurrence after surgical removal of a tumour, and/or treating small tumours. They are therefore useful for the treatment of cancer, preferably a cancer of a wall of the digestive system or a gynaecologic cancer. The present invention also relates to a method for preparing said gelling compositions.
摘要:
The invention relates to a novel use of ultrafine nanoparticles as an imaging agent in a method for diagnosing a renal disorder. The invention also relates to the use of ultrafine nanoparticles as an imaging agent in methods for monitoring the therapeutic effectiveness of a renal disorder treatment. Said nanoparticles include: (i) a polyorganosiloxane matrix (POS); (ii) one or more chelating agents grafted onto the POS matrix by -Si-C- covalent bonding; and (iii) one or more metal ions chelated by one or more of the aforementioned chelating agents.
摘要:
The invention relates to a method for manufacturing a nanostructured powder comprising nanocrystalline agglomerates containing active pharmaceutical ingredient (API) in its crystalline form, said method comprising (i) Preparing a first solution comprising API and an API solvent; (ii) Mixing the first solution with a second solution comprising an API antisolvent and optionally a stabilizing agent P1 to obtain a third mixture; (iii) Evaporating the third mixture until both the API solvent and the API antisolvent are evaporated, advantageously under vacuum; characterized in that when the stabilizing agent P1 is present, the third mixture has a stabilizing agent P1 to API weight ratio equal or less than 5, preferably less than 2. The invention also concerns a nanostructured powder and a nanosuspension.
摘要:
The present invention relates to a asymmetric flow field-flow fractionation device (1) configured to separate a samle (8) of particles (12) dispersed in a liquid mobile phase (11), the device including a fractionation microchannel (2) comprising a sample inlet, a sample outlet, an auxiliary microchannel (3) comprising an auxiliary outlet, a semipermeable membrane (10) separating the fractionation microchannel (2) and the auxiliary microchannel (2), said membrane (10) being permeable to liquid and being configured to maintain the particles (12) in said fractionation microchannel (2), the fractionation microchannel being superimposed on the auxiliary microchannel (3), wherein the device (1) comprises two layers (19), each layer being with a microfabricated recess (14) which thickness (t) is less than 100 µm, the membrane (10) being mechanically held by encapsulation in between the two layers (19), the recesses (14) respectively defining the fractionation microchannel (2) and the auxiliary microchannel (3) on each side of the membrane (10).
摘要:
L'invention concerne une nouvelle utilisation de nanoparticules ultrafines comme agent d'imagerie dans une méthode de diagnostic d'une dysfonction rénale. L'invention vise également l'utilisation de nanoparticules ultrafines comme agent d'imagerie dans des méthodes de suivi de l'efficacité thérapeutique d'un traitement d'une dysfonction rénale. Lesdites nanoparticules comprennent (i) une matrice de polyorganosiloxane (POS), (ii) un ou plusieurs agents chélatants greffés à la matrice POS par liaison covalente -Si-C- et (iii) un ou plusieurs ions métalliques chélatés par un ou plusieurs des agents chélatants susmentionnés.