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Enhanced osteogenic differentiation of human mesenchymal stem cells on Ti surfaces with electrochemical nanopattern formation

Authors
 Yong Cheol Shin  ;  Kang-Mi Pang  ;  Dong-Wook Han  ;  Kyeong-Hee Lee  ;  Yoon-Cheol Ha  ;  Jun-Woo Park  ;  Bongju Kim  ;  Doohun Kim  ;  Jong-Ho Lee 
Citation
 MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, Vol.99 : 1174-1181, 2019-06 
Journal Title
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
ISSN
 0928-4931 
Issue Date
2019-06
MeSH
Alkaline Phosphatase / metabolism ; Cell Differentiation* / drug effects ; Cell Proliferation ; Electrochemistry* ; Humans ; Mesenchymal Stem Cells / cytology* ; Mesenchymal Stem Cells / drug effects ; Mesenchymal Stem Cells / metabolism ; Nanotechnology* ; Nanotubes / chemistry ; Nanotubes / ultrastructure ; Osteocalcin / metabolism ; Osteogenesis* / drug effects ; Surface Properties ; Titanium / pharmacology*
Keywords
Titanium ; Nanotube ; Electrochemical nanopattem formation ; Osteogenic differentiation ; Surface treatment
Abstract
Titanium (Ti) and its alloys are mainly used for dental and orthopedic applications due to their excellent biocompatibility and mechanical properties. However, their intrinsic bioinertness often quotes as a common complaint for biomedical applications. Herein, we produced nanopattern Ti surfaces with 10 nm nanopores in 120 nm dimples by electrochemical nanopattern formation (ENF), and evaluated the osteogenic differentiation of human mesenchymal stem cells (hMSCs) on the nanopattern Ti surfaces. The ENF surfaces were obtained by removing the TiO2 nanotube (NT) layers prepared by an anodization process. To determine the in vitro effects of the ENF surface, cell proliferation assay, alkaline phosphatase activity assay, alizarin red staining, western blotting, and immunocytothemistry were performed. Atomic force microscopy and scanning electron microscopy analysis show that the ENF surface has an ultrafine surface roughness with highly aligned nanoporous morphology. hMSCs on ENF surfaces exhibit increased proliferation and enhanced osteogenic differentiation as compared to the ordered TiO2 nanotubular and compact TiO2 surfaces. Surface modification with the ENF process is a promising technique for fabricating osteointegrative implant materials with a highly bioactive, rigid and purified nano surfaces.
Full Text
https://www.sciencedirect.com/science/article/pii/S092849311833279X
DOI
10.1016/j.msec.2019.02.039
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Shin, Yong Cheol(신용철)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/189194
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