M. Shirkhanzadeh et Gq. Liu, BIOCOMPATIBLE DELIVERY SYSTEMS FOR OSTEOINDUCTIVE PROTEINS - IMMOBILIZATION OF L-LYSINE IN MICRO-POROUS HYDROXYAPATITE COATINGS, Materials letters, 21(1), 1994, pp. 115-118
The absorption and immobilization of L-lysine into electrochemically s
ynthesized porous hydroxyapatite coatings is described as a method of
fabricating delivery systems for sustained release of osteoinductive p
roteins. The nature of interfacial interactions between L-lysine and h
ydroxyapatite was investigated by FTIR spectroscopy. The formation of
hydrogen bonding between the C=O groups of L-lysine and polar OH group
s of hydroxyapatite was shown to be a major factor affecting the chemi
cal intermolecular attractions.