The system will be going down for regular maintenance. Please save your work and logout.
Impact of RGD Nanopatterns Grafted onto Titanium on Osteoblastic Cell Adhesion
HÉROGUEZ, Valérie
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
< Reduce
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Language
en
Article de revue
This item was published in
Biomacromolecules. 2012, vol. 13, n° 3, p. 896-904
American Chemical Society
English Abstract
This work reports on the synthesis of titanium bone implants functionalized with nanoparticles (NPs) containing Arg-Gly-Asp-Cys peptide (RGDC) and shows the adhesion behavior of cells seeded on these materials. RGDC peptides ...Read more >
This work reports on the synthesis of titanium bone implants functionalized with nanoparticles (NPs) containing Arg-Gly-Asp-Cys peptide (RGDC) and shows the adhesion behavior of cells seeded on these materials. RGDC peptides were first: conjugated to a norbornenyl-poly(ethylene oxide) macromonomer (Nb-PEO). Then, functional NPs with a size of similar to 300 nm and constituted of polynorbornene core surrounded by poly(ethylene oxide) shell were prepared by ring-opening metathesis polymerization in dispersed medium. The grafting density of these NPs on the titanium surface is up to 2 NPs.mu m(-2) (80 pmol of RGDC per cm(-2) of NP surface). Cell adhesion was evaluated using preosteoblast cells (MC3T3-E1). Results of cells cultured for 24 h showed that materials grafted with NPs functionalized with RGDC peptides enhance specific cell adhesion and can create filopodia-like among NP sites by stressing the cells.Read less <
English Keywords
BIOMATERIALS
VIVO
IMPLANTS
OPENING METATHESIS POLYMERIZATION
IN-VITRO
BONE-FORMATION
PEPTIDES
SURFACES
DIFFERENTIATION
HYDROGELS
Origin
Hal imported