TY - JOUR
T1 - Laser surface modification for synthesis of textured bioactive and biocompatible Ca-P coatings on Ti-6Al-4V
AU - Paital, Sameer R.
AU - Bunce, Nancy
AU - Nandwana, Peeyush
AU - Honrao, Chinmay
AU - Nag, Soumya
AU - He, Wei
AU - Banerjee, Rajarshi
AU - Dahotre, Narendra B.
PY - 2011/6
Y1 - 2011/6
N2 - A textured calcium phosphate based bio-ceramic coating was synthesized by continuous wave Nd:YAG laser induced direct melting of hydroxyapatite precursor on Ti-6Al-4V substrate. Two different micro-textured patterns (100 μm and 200 μm line spacing) of Ca-P based phases were fabricated by this technique to understand the alignment and focal adhesion of the bone forming cells on these surfaces. X-ray diffraction studies of the coated samples indicated the presence of CaTiO 3, α-Ca 3(PO 4) 2, Ca(OH) 2, TiO 2 (anatase) and TiO 2 (rutile) phases as a result of the intermixing between the precursor and substrate material during laser processing. A two dimensional elemental mapping of the cross-section of the coated samples exhibited the presence of higher phosphorous concentration within the coating and a thin layer of calcium concentration only at the top of the coating. Improved in vitro bioactivity and in vitro biocompatibility was observed for the laser processed samples as compared to the control.
AB - A textured calcium phosphate based bio-ceramic coating was synthesized by continuous wave Nd:YAG laser induced direct melting of hydroxyapatite precursor on Ti-6Al-4V substrate. Two different micro-textured patterns (100 μm and 200 μm line spacing) of Ca-P based phases were fabricated by this technique to understand the alignment and focal adhesion of the bone forming cells on these surfaces. X-ray diffraction studies of the coated samples indicated the presence of CaTiO 3, α-Ca 3(PO 4) 2, Ca(OH) 2, TiO 2 (anatase) and TiO 2 (rutile) phases as a result of the intermixing between the precursor and substrate material during laser processing. A two dimensional elemental mapping of the cross-section of the coated samples exhibited the presence of higher phosphorous concentration within the coating and a thin layer of calcium concentration only at the top of the coating. Improved in vitro bioactivity and in vitro biocompatibility was observed for the laser processed samples as compared to the control.
UR - http://www.scopus.com/inward/record.url?scp=80051583979&partnerID=8YFLogxK
U2 - 10.1007/s10856-011-4321-8
DO - 10.1007/s10856-011-4321-8
M3 - Article
C2 - 21526409
AN - SCOPUS:80051583979
SN - 0957-4530
VL - 22
SP - 1393
EP - 1406
JO - Journal of Materials Science: Materials in Medicine
JF - Journal of Materials Science: Materials in Medicine
IS - 6
ER -