Methods are disclosed for preparing linear or/and partial precross-linked poly-g-glutamic acid nanoparticle products, their reaction with compounds which contain vinyl groups, and the polymerization by chemical initiation or photopolymerization of these by light of predetermined wavelength. The final products of the present invention are useful as local drug delivery systems, dental surgery, and for inhibition of post-surgical adhesion. The hydrogels made from the biopolymers of the present invention may also be used in controlled release devices, superabsorbent materials and biomaterials like enzyme immobilization.
The invention relates to a polymeric electrolyte which is part of an electrochemical reference electrode and which is used in potentiometric and amperometric sensors. The polymeric electrolyte is a hydrogel which is stable in a large pH-range and stable against organic solvents.
This invention provides chelating moieties that comprise an aryl group. Monomers that include the chelating moieties can be polymerized into chelating polymers. Chelating polymers are useful to chelate metals. Chelating polymers in the form of metal chelates are useful for binding analytes, such as polypeptides that comprise histidine residues. Chelating polymers can be includes in articles such as chips and chromatographic materials.
Thermo-responsive polymer covalently bound with a peptide
申请人:Saiani Alberto
公开号:US20130281602A1
公开(公告)日:2013-10-24
A thermo-responsive polymer covalently bound with a peptide, wherein the peptide comprises a peptide moiety that is able to self-assemble and a functional peptide moiety comprising a bioactive sequence, and compositions comprising such thermo-responsive polymer covalently bound with a peptide. Methods for the preparation of such thermo-responsive polymers covalently bound with a peptide and the use thereof for the preparation of hydrogels.
Use of the amino acid sequence Har-Gly-Asp (hRGD) as a bioactive sequence in functional peptides to promote cell adhesion, cell growth, and/or cell differentiation, and in the preparation of hydrogels, preferably hydrogels for cell culture. A hydrogel comprising the hRGD sequence, especially a hydrogel wherein the hRGD sequence is part of the hydrogel scaffold.