ID 112324
Author
Chu, Jinn P. National Taiwan University of Science and Technology
Yu, Chia-Chi National Taiwan University of Science and Technology
Tanatsugu, Yusuke National Taiwan University of Science and Technology|Tokushima University
Shen, Yu-Lin University of New Mexico
Content Type
Journal Article
Description
This paper reports on the use of Zr-based (Zr53Cu33Al9Ta5) thin film metallic glass (TFMG) for the coating of syringe needles and compares the results with those obtained using titanium nitride and pure titanium coatings. TFMG coatings were shown to reduce insertion forces by ∼66% and retraction forces by ∼72%, when tested using polyurethane rubber block. The benefits of TFMG-coated needles were also observed when tested using muscle tissue from pigs. In nano-scratch tests, the TFMG coatings achieved a coefficient of friction (COF) of just ∼0.05, which is about one order of magnitude lower than those of other coatings. Finite-element modeling also indicates a significant reduction in injection and retraction forces. The COF can be attributed to the absence of grain boundaries in the TFMG coating as well as a smooth surface morphology and low surface free energy.
Journal Title
Scientific Reports
ISSN
20452322
Publisher
Springer Nature
Volume
6
Start Page
31847
Published Date
2016-08-30
Remark
Supplementary Information : srep_6_31847_s1.pdf
Supplementary Video : srep_6_31847_s2.avi
Rights
© The Author(s) 2016
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
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DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
Publisher
departments
Science and Technology