title: Electrophoretic deposition of nanobiocomposites for orthopedic applications: influence of current density and coating duration.
abstract: Frequently metal implants undergo detachment from the host tissue due to inadequate biocompatibility and poor osteointegration. In view of this, bioactive porous apatite-wollastonite/chitosan nanocomposite coating was prepared using electrophoretic deposition (EPD) technique in the present work. The effect of coating duration and current density on surface characteristics of the nanocomposite coating was assessed using optical microscope and scanning electron microscope. EPD led to the formation of thick and homogeneous coating. Adhesion of the composite coating on titanium substrate was evaluated using tape test and bioactivity of the coatings was studied by immersing in simulated body fluid (SBF). The coating with higher current density and longer coating duration was found to be suitable with improved adhesion and bioactivity for intended metal implants.
authors.affiliation: School of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
authors.forename: Smriti
authors.initials: S
authors.lastname: Sharma
authors.forename: Vivek P
authors.initials: VP
authors.lastname: Soni
authors.forename: Jayesh R
authors.initials: JR
authors.lastname: Bellare
mesh_terms: D001031:Apatites / Q000138:chemical synthesis / Q000737:chemistry; D001826:Body Fluids / Q000502:physiology; D017610:Calcium Compounds / Q000737:chemistry; D002516:Ceramics / Q000138:chemical synthesis / Q000737:chemistry; D020099:Coated Materials, Biocompatible / Q000138:chemical synthesis* / Q000737:chemistry; D003720:Densitometry; D004595:Electroplating / Q000379:methods*; D008422:Materials Testing; D053761:Nanocomposites / Q000737:chemistry*; D009984:Orthopedic Fixation Devices; D011208:Powders; D017640:Silicates / Q000737:chemistry; D012824:Silicic Acid / Q000138:chemical synthesis / Q000737:chemistry; D013997:Time Factors; D014025:Titanium / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D001031:Apatites; D017610:Calcium Compounds; D020099:Coated Materials, Biocompatible; D011208:Powders; D017640:Silicates; C077777:apatite-wollastonite-containing glass ceramic; D012824:Silicic Acid; D014025:Titanium; C031293:calcium silicate