Effects of anodic oxidation in H2SO4 electrolyte on the biocompatibility of NiTi shape memory alloy

C. L. Chu; R. M. Wang; L. H. Yin; Y. P. Pu; P. H. Lin; Y. S. Dong; C. Y. Chung; K. W K Yeung; P. K. Chu

doi:10.1016/j.matlet.2008.03.030

Effects of anodic oxidation in H₂SO₄ electrolyte on the biocompatibility of NiTi shape memory alloy

C. L. Chu
, R. M. Wang
, L. H. Yin
, Y. P. Pu
, P. H. Lin
, Y. S. Dong
, C. Y. Chung
, K. W K Yeung
, P. K. Chu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

25 Citations (Scopus)

Abstract

Effects of anodic oxidation in H₂SO₄ electrolyte on the biocompatibility of NiTi shape memory alloy (SMA) were investigated by characterizing surface structure, blood compatibility, wettability, release of harmful Ni ions of anodized NiTi SMA. Although titania film resulting from anodic oxidation in H₂SO₄ electrolyte has a porous structure, it can effectively block out-diffusion of Ni from NiTi SMA to simulated body fluid (SBF). Comparing with chemical polishing, anodic oxidation in H₂SO₄ electrolyte can also improve the wettability, blood compatibility, thromboresistance of NiTi SMA. © 2008 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	3512-3514
Journal	Materials Letters
Volume	62
Issue number	20
DOIs	https://doi.org/10.1016/j.matlet.2008.03.030
Publication status	Published - 31 Jul 2008

Research Keywords

Anodic oxidation
Biocompatibility
NiTi
Shape memory materials
Surfaces

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title = "Effects of anodic oxidation in H2SO4 electrolyte on the biocompatibility of NiTi shape memory alloy",

abstract = "Effects of anodic oxidation in H2SO4 electrolyte on the biocompatibility of NiTi shape memory alloy (SMA) were investigated by characterizing surface structure, blood compatibility, wettability, release of harmful Ni ions of anodized NiTi SMA. Although titania film resulting from anodic oxidation in H2SO4 electrolyte has a porous structure, it can effectively block out-diffusion of Ni from NiTi SMA to simulated body fluid (SBF). Comparing with chemical polishing, anodic oxidation in H2SO4 electrolyte can also improve the wettability, blood compatibility, thromboresistance of NiTi SMA. {\textcopyright} 2008 Elsevier B.V. All rights reserved.",

keywords = "Anodic oxidation, Biocompatibility, NiTi, Shape memory materials, Surfaces",

author = "Chu, \{C. L.\} and Wang, \{R. M.\} and Yin, \{L. H.\} and Pu, \{Y. P.\} and Lin, \{P. H.\} and Dong, \{Y. S.\} and Chung, \{C. Y.\} and Yeung, \{K. W K\} and Chu, \{P. K.\}",

year = "2008",

month = jul,

day = "31",

doi = "10.1016/j.matlet.2008.03.030",

language = "English",

volume = "62",

pages = "3512--3514",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "20",

}

TY - JOUR

T1 - Effects of anodic oxidation in H2SO4 electrolyte on the biocompatibility of NiTi shape memory alloy

AU - Chu, C. L.

AU - Wang, R. M.

AU - Yin, L. H.

AU - Pu, Y. P.

AU - Lin, P. H.

AU - Dong, Y. S.

AU - Chung, C. Y.

AU - Yeung, K. W K

AU - Chu, P. K.

PY - 2008/7/31

Y1 - 2008/7/31

N2 - Effects of anodic oxidation in H2SO4 electrolyte on the biocompatibility of NiTi shape memory alloy (SMA) were investigated by characterizing surface structure, blood compatibility, wettability, release of harmful Ni ions of anodized NiTi SMA. Although titania film resulting from anodic oxidation in H2SO4 electrolyte has a porous structure, it can effectively block out-diffusion of Ni from NiTi SMA to simulated body fluid (SBF). Comparing with chemical polishing, anodic oxidation in H2SO4 electrolyte can also improve the wettability, blood compatibility, thromboresistance of NiTi SMA. © 2008 Elsevier B.V. All rights reserved.

AB - Effects of anodic oxidation in H2SO4 electrolyte on the biocompatibility of NiTi shape memory alloy (SMA) were investigated by characterizing surface structure, blood compatibility, wettability, release of harmful Ni ions of anodized NiTi SMA. Although titania film resulting from anodic oxidation in H2SO4 electrolyte has a porous structure, it can effectively block out-diffusion of Ni from NiTi SMA to simulated body fluid (SBF). Comparing with chemical polishing, anodic oxidation in H2SO4 electrolyte can also improve the wettability, blood compatibility, thromboresistance of NiTi SMA. © 2008 Elsevier B.V. All rights reserved.

KW - Anodic oxidation

KW - Biocompatibility

KW - NiTi

KW - Shape memory materials

KW - Surfaces

UR - https://www.scopus.com/pages/publications/44349192665

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-44349192665&origin=recordpage

U2 - 10.1016/j.matlet.2008.03.030

DO - 10.1016/j.matlet.2008.03.030

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 62

SP - 3512

EP - 3514

JO - Materials Letters

JF - Materials Letters

IS - 20

ER -