The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.

Many challenges exist in improving early osseointegration, one of the most critical factors in the long-term clinical success of dental implants. Recently, ultraviolet (UV) light-mediated photofunctionalization of titanium as a new potential surface treatment has aroused great interest. This study e...

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Main Authors: Yan Gao, Ying Liu, Lei Zhou, Zehong Guo, Mingdeng Rong, Xiangning Liu, Chunhua Lai, Xianglong Ding
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3702557?pdf=render
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author Yan Gao
Ying Liu
Lei Zhou
Zehong Guo
Mingdeng Rong
Xiangning Liu
Chunhua Lai
Xianglong Ding
author_facet Yan Gao
Ying Liu
Lei Zhou
Zehong Guo
Mingdeng Rong
Xiangning Liu
Chunhua Lai
Xianglong Ding
author_sort Yan Gao
collection DOAJ
description Many challenges exist in improving early osseointegration, one of the most critical factors in the long-term clinical success of dental implants. Recently, ultraviolet (UV) light-mediated photofunctionalization of titanium as a new potential surface treatment has aroused great interest. This study examines the bioactivity of titanium surfaces treated with UV light of different wavelengths and the underlying associated mechanism. Micro-arc oxidation (MAO) titanium samples were pretreated with UVA light (peak wavelength of 360 nm) or UVC light (peak wavelength of 250 nm) for up to 24 h. UVC treatment promoted the attachment, spread, proliferation and differentiation of MG-63 osteoblast-like cells on the titanium surface, as well as the capacity for apatite formation in simulated body fluid (SBF). These biological influences were not observed after UVA treatment, apart from a weaker effect on apatite formation. The enhanced bioactivity was substantially correlated with the amount of Ti-OH groups, which play an important role in improving the hydrophilicity, along with the removal of hydrocarbons on the titanium surface. Our results showed that both UVA and UVC irradiation altered the chemical properties of the titanium surface without sacrificing its excellent physical characteristics, suggesting that this technology has extensive potential applications and merits further investigation.
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spelling doaj.art-f6a5630d15014b019bfbb4a674a2b0dd2022-12-21T17:17:41ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0187e6808610.1371/journal.pone.0068086The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.Yan GaoYing LiuLei ZhouZehong GuoMingdeng RongXiangning LiuChunhua LaiXianglong DingMany challenges exist in improving early osseointegration, one of the most critical factors in the long-term clinical success of dental implants. Recently, ultraviolet (UV) light-mediated photofunctionalization of titanium as a new potential surface treatment has aroused great interest. This study examines the bioactivity of titanium surfaces treated with UV light of different wavelengths and the underlying associated mechanism. Micro-arc oxidation (MAO) titanium samples were pretreated with UVA light (peak wavelength of 360 nm) or UVC light (peak wavelength of 250 nm) for up to 24 h. UVC treatment promoted the attachment, spread, proliferation and differentiation of MG-63 osteoblast-like cells on the titanium surface, as well as the capacity for apatite formation in simulated body fluid (SBF). These biological influences were not observed after UVA treatment, apart from a weaker effect on apatite formation. The enhanced bioactivity was substantially correlated with the amount of Ti-OH groups, which play an important role in improving the hydrophilicity, along with the removal of hydrocarbons on the titanium surface. Our results showed that both UVA and UVC irradiation altered the chemical properties of the titanium surface without sacrificing its excellent physical characteristics, suggesting that this technology has extensive potential applications and merits further investigation.http://europepmc.org/articles/PMC3702557?pdf=render
spellingShingle Yan Gao
Ying Liu
Lei Zhou
Zehong Guo
Mingdeng Rong
Xiangning Liu
Chunhua Lai
Xianglong Ding
The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.
PLoS ONE
title The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.
title_full The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.
title_fullStr The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.
title_full_unstemmed The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.
title_short The effects of different wavelength UV photofunctionalization on micro-arc oxidized titanium.
title_sort effects of different wavelength uv photofunctionalization on micro arc oxidized titanium
url http://europepmc.org/articles/PMC3702557?pdf=render
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