Abstract: The present invention relates to cross polymers composed at least of polysaccharides and polyamino acids, and more particularly to hydrogels composed of said cross polymers. The invention also relates to a process for preparing them, as well as their use in the delivery of active agents for pharmaceutical, diagnostic and/or dermo-cosmetic applications.

Abstract: The invention relates to 3-arms star-shaped polypeptides derivatives which are able to self-assemble to form bioresponsive nanometric globular structures with controllable size and shape. These multivalent constructs also present the ability of disassemble under specific physiological conditions and of linking to at least one active agent so that they can be used as carries in biomedical applications.

Abstract: The invention relates to 3-arms star-shaped polypeptides derivatives which are able to self-assemble to form bioresponsive nanometric globular structures with controllable size and shape. These multivalent constructs also present the ability of disassemble under specific physiological conditions and of linking to at least one active agent so that they can be used as carries in biomedical applications.

Abstract: A personal care composition is disclosed comprising a di-amido gellant, wherein the di-amido gellant has a formula: wherein R1 and R2 are aminofunctional end-groups which may be the same or different, and L is a linking moiety of molecular weight from 14 to 500 g/mol. The personal care composition may take a variety of forms such as a leave-on composition or an emulsion and/or may comprise one or more actives or agents.

Abstract: A personal care composition is disclosed comprising a pH tuneable gellant. The pH tuneable gellant has a formula of: wherein R1 and R2 are aminofunctional end-groups; L1 is a backbone moiety having molecular weight from 14 to 500 g/mol; and at least one of L1, R1 or R2 comprises a pH-sensitive group; wherein R5 is an aminofunctional moiety; L2 is a backbone moiety having molecular weight from 14 to 500 g/mol; and at least one of L2 or R5 comprises a pH-sensitive group; and mixtures of [I] and [II]. The personal care composition may take a variety of forms such as a leave-on composition or an emulsion or may comprise one or more actives or agents.

Abstract: A personal care composition is disclosed comprising a di-amido gellant, wherein the di-amido gellant has a formula: wherein R1 and R2 are aminofunctional end-groups which may be the same or different, and L is a linking moiety of molecular weight from 14 to 500 g/mol. The personal care composition may take a variety of forms such as a leave-on composition or an emulsion and/or may comprise one or more actives or agents.

Abstract: A personal care composition is disclosed comprising a pH tuneable gellant. The pH tuneable gellant has a formula of: wherein R1 and R2 are aminofunctional end-groups; L1 is a backbone moiety having molecular weight from 14 to 500 g/mol; and at least one of L1, R1 or R2 comprises a pH-sensitive group; wherein R5 is an aminofunctional moiety; L2 is a backbone moiety having molecular weight from 14 to 500 g/mol; and at least one of L2 or R5 comprises a pH-sensitive group; and mixtures of [I] and [II]. The personal care composition may take a variety of forms such as a leave-on composition or an emulsion or may comprise one or more actives or agents.