Naslov
Functionalization of biodegradable magnesium alloy implants with alkylphosphonate self-assembled films

Autori
Grubač, Zoran ; Metikoš-Huković, Mirjana ; Babić, Ranko ; Škugor-Rončević, Ivana ; Petravić, Mladen ; Peter, Robert

Izvornik
Materials science and engineering C (0928-4931) 33 (2013), 4; 2152-2158

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
magnesium alloy; implant; alkylphosphonate SAM; physiological solution; spectroscopicy

Sažetak
Mg and Mg-alloys are promising material for biodegradable implants. In order to slowdown the Mg-alloy (AZ91D) degradation and enhance its biocompatibility, the alloy surface was modified with alkylphosphonate self-assembling films. The binding configuration and the structural organization of alkylphosphonate molecules on the Mg-alloy surface were investigated using contact angle measurements, FTIR, and XPS. Combination of FTIR and XPS data indicated the presence of several different bonding modes (mono-, di-, and tri dentate) of phosphonate head groups with the alloy surface. The existence of well organized and ordered self- assembled alkylphosphonate monolayers with good barrier protecting properties in a physiological solution is a key step in the development of biocompatible Mg-alloy implants.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA