Open AccessEffect of polyethylene glycol on surface coating of Ta2O5 onto titanium substrate in sol-gel technique
Author(s) -
Vamsi Krishna Dommeti,
Sumit Pramanik,
Sandipan Roy
Publication year - 2021
Publication title -
acta of bioengineering and biomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.361
H-Index - 25
eISSN - 2450-6303
pISSN - 1509-409X
DOI - 10.37190/abb-01757-2020-05
Subject(s) - materials science , coating , tantalum pentoxide , polyethylene glycol , peg ratio , titanium , substrate (aquarium) , layer (electronics) , spin coating , porosity , chemical engineering , composite material , sol gel , sintering , surface roughness , polyethylene , thin film , metallurgy , nanotechnology , oceanography , finance , geology , engineering , economics
Purpose: Recently, titanium (Ti) and its alloys have been widely used in dental and surgical implants in the last few decades. However, there is a loosening effect over a long period usage. Therefore, the present study aimed to increase life of an implant by its surface modification. Methods: In present study, sol-gel process has been applied to create tantalum pentoxide (Ta 2 O 5 ) layer coating on Ti-substrate. In this technique, polyethylene glycol (PEG) plays an important role to form uniform porous coating, which can have potential application in formation of strong bonding to the natural bone. Results: Microstructural, elemental, structural and binding energy results showed that the material with 100% PEG-enhanced sol-gel Ta 2 O 5 with spin coating onto Ti substrate followed by an optimized sintering temperature (500 °C) has better porous structure than that of 5% PEG-enhanced sol-gel Ta 2 O 5 coating, and would be suitable for tissue in-growth properties. Conclusions: Therefore, it was concluded that the present spin coated 100% PEG-enhanced Ta 2 O 5 coating onto Ti, having the most suitable morphology with enhanced roughness, could be noteworthy for potential tissue in-growth and it could provide desired bonding at the interface of Ti-implant coating and host tissues in biomedical applications.