Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Title: 

THE EFFECT OF TOPOGRAPHY MODIFICATION ON BIOACTIVITY OF CHEMICAL AND HEAT TREATED TITANIUM

Type: PAPER
Author(s): BEHNAMGHADER ALIASGHAR,SALEMI HODA*,AFSHAR ABDOLLAH,ARDESHIR MAHMOOD
 
 *FACULTY ISLAMIC AZAD UNIVERSITY, SCIENCE AND RESEARCH BRANCH, TEHRAN, IRAN
 
Name of Seminar: IRANIAN CONFERENCE ON BIOMEDICAL ENGINEERING
Type of Seminar:  CONFERENCE
Sponsor:  ANJOMANE MOHANDESI PEZESHKI IRAN
Date:  2008Volume 14
 
 
Abstract: 

THE CHEMICAL TREATMENT IN NAOH SOLUTION ENHANCES THE CALCIUM PHOSPHATE PRECIPITATION ON TITANIUM SUBSTRATES. THE AIM OF THIS STUDY WAS TO INVESTIGATE THE TOPOGRAPHY AND CHEMICAL MODIFICATION OF TITANIUM SUBSTRATES DUE TO ALKALINE AND HEAT TREATMENT AND THEIR EFFECTS ON THE FORMATION OF CALCIUM PHOSPHATE DEPOSITION IN SIMULATED BODY FLUID SOLUTION. IN THIS RESEARCH, AT FIRST THE TITANIUM SAMPLES WERE TREATED WITH NAOH 5N AND 10N AND SOME OF THEM FOLLOWED A HEAT TREATMENT AT 600OC FOR 1 H. THE SAMPLES WERE THEN IMMERSED IN THE SIMULATED BODY FLUID (SBF) FOR 28 DAYS TO INVESTIGATE THE INFLUENCE OF SURFACE TREATMENTS OF TITANIUM ON IN VITRO BIOACTIVITY. THE MODIFIED SUBSTRATES WERE CHARACTERIZED BY SCANNING ELECTRON MICROSCOPY (SEM), X-RAY DIFFRACTION (XRD) AND ATOMIC FORCE MICROSCOPY (AFM). THE IN VITRO ASSESSMENT WAS CARRIED OUT THROUGH THE IMMERSION OF SAMPLES IN SIMULATED BODY FLUID. ACCORDING TO THE RESULTS OBTAINED IN THIS WORK, TREATMENT IN NAOH SOLUTION WITH A CONCENTRATION OF 5N LED ONLY TO THE FORMATION OF INTRAGRANULAR NANO POROSITIES WHEREAS THE GRAIN BOUNDARIES HAVE BEEN ALSO AFFECTED WITH THE INCREASING OF THE CONCENTRATION TO 10N. THE PORE SIZE VALUES INCREASED DUE TO THE HEAT TREATMENT AT 600OC. THE MORPHOLOGY ANALYSIS REVEALED THE MICROSTRUCTURE OF COATING WAS FINER FOR THE SAMPLES TREATED BY NAOH 10N THAN ONES TREATED BY NAOH 5N.

 
Keyword(s): ALKALINE AND HEAT TREATMENT, SIMULATED BODY FLUID, IN VITRO, BIOACTIVITY, TITANIUM, CALCIUM PHOSPHATE
 
 
Yearly Visit 40   pdf-file tarjomyar
 
Latest on Blog
Enter SID Blog