title: Investigating the interactions of hyaluronan derivatives with biomolecules. The use of diffusional NMR techniques.
abstract: [Chemical structure: see text] The interactions between a biomaterial and biomolecules present in body fluids often determine the fate of the biomaterial. This paper presents a study on hyaluronan (HA)-containing materials (in soluble or colloidal form) that focuses on their interactions with lipids and proteins and for the first time uses PFG NMR as an analytical technique for probing these events. The interactions of HA-based polymers with phospholipids (DPPC and DPPG liposomes) are shown to depend both on charge and hydrophobicity factors. Despite the difference in behavior between albumin (substantially non-adhesive) and fibrinogen (adhesive), the interactions of the polymers with proteins do not seem to be based on hydrophobic effects but on surface polar interactions.
authors.affiliation: Department of Chemistry, University "La Sapienza", Piazzale Aldo Moro 5, 00185 Rome, Italy.
authors.forename: Anna
authors.initials: A
authors.lastname: Taglienti
authors.forename: Francesco
authors.initials: F
authors.lastname: Cellesi
authors.forename: Vittorio
authors.initials: V
authors.lastname: Crescenzi
authors.forename: Paolo
authors.initials: P
authors.lastname: Sequi
authors.forename: Massimiliano
authors.initials: M
authors.lastname: Valentini
authors.forename: Nicola
authors.initials: N
authors.lastname: Tirelli
mesh_terms: D015060:1,2-Dipalmitoylphosphatidylcholine / Q000737:chemistry; D005340:Fibrinogen / Q000737:chemistry; D006820:Hyaluronic Acid / Q000737:chemistry*; D008081:Liposomes; D019906:Nuclear Magnetic Resonance, Biomolecular / Q000379:methods*; D012710:Serum Albumin, Bovine / Q000737:chemistry
chemical_list: D008081:Liposomes; D015060:1,2-Dipalmitoylphosphatidylcholine; D012710:Serum Albumin, Bovine; D005340:Fibrinogen; D006820:Hyaluronic Acid