| Surface modification of titanium by etching in concentrated sulfuric acid. | |
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MedLine Citation:
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PMID: 16375960 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of this study was to characterize the etching behavior of titanium in concentrated sulfuric acid and discuss its application on surface modification of titanium for biological use. METHODS: Commercially pure titanium (cpTi) plate was etched in 48% H2SO4 at RT -90 degrees C for 0.25-8 h. The weight loss was derived from the weight differences before and after etching. The surfaces after etching were characterized by surface roughness, X-ray diffractometry, and scannning electron spectroscopy. The apparent activation energy of the dissolution of cpTi into acid was derived from an Arrhenius plot of the rate of weight loss versus the acid temperature. RESULTS: The surface roughness of cpTi increased with the acid temperature and etching time. The surface roughness was strongly related to the weight loss. The weight loss increased drastically with the acid temperature after an initial period, which shortened with increasing acid temperature. The apparent activation energy for the dissolution of cpTi in H2SO4 was derived as 67.8 kJ/mol. SIGNIFICANCE: This study indicates that etching with concentrated sulfuric acid is an effective way to modify the surface of titanium for biological applications. |
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Authors:
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Seiji Ban; Yukari Iwaya; Hiroshi Kono; Hideo Sato |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2005-12-20 |
Journal Detail:
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Title: Dental materials : official publication of the Academy of Dental Materials Volume: 22 ISSN: 0109-5641 ISO Abbreviation: Dent Mater Publication Date: 2006 Dec |
Date Detail:
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Created Date: 2006-11-06 Completed Date: 2007-01-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8508040 Medline TA: Dent Mater Country: England |
Other Details:
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Languages: eng Pagination: 1115-20 Citation Subset: D |
Affiliation:
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Department of Biomaterials Science, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan. sban@denta.hal.kagoshima-u.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acid Etching, Dental* Analysis of Variance Corrosion Microscopy, Electron, Scanning Sulfuric Acids Surface Properties Temperature Titanium* |
| Chemical | |
Reg. No./Substance:
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0/Sulfuric Acids; 7440-32-6/Titanium; 7664-93-9/sulfuric acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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