A shape memory microcage of TiNi/DLC films for biological applications

Y. Q. Fu; J. K. Luo; S. E. Ong; S. Zhang; A. J. Flewitt; W. I. Milne

doi:10.1088/0960-1317/18/3/035026

A shape memory microcage of TiNi/DLC films for biological applications

Y. Q. Fu, J. K. Luo, S. E. Ong, S. Zhang, A. J. Flewitt, W. I. Milne

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

A TiNi/diamond-like-carbon (DLC) microcage has been designed for biological applications. The structure is composed of a top layer of TiNi film and a bottom layer of highly compressively stressed DLC for upward bending once released from the substrate. The fingers of the microcage quickly close through the shape memory effect once the temperature reaches the austenite start transformation point to execute the gripping action. Opening the microcage is realized by either decreasing the temperature to make use of the martensitic transformation or further increasing the temperature to use the bimorph thermal effect. The biocompatibility of both the TiNi and DLC films has been investigated using a cell-culture method. © 2008 IOP Publishing Ltd.

Original language	English
Article number	035026
Journal	Journal of Micromechanics and Microengineering
Volume	18
Issue number	3
DOIs	https://doi.org/10.1088/0960-1317/18/3/035026
Publication status	Published - 1 Mar 2008

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abstract = "A TiNi/diamond-like-carbon (DLC) microcage has been designed for biological applications. The structure is composed of a top layer of TiNi film and a bottom layer of highly compressively stressed DLC for upward bending once released from the substrate. The fingers of the microcage quickly close through the shape memory effect once the temperature reaches the austenite start transformation point to execute the gripping action. Opening the microcage is realized by either decreasing the temperature to make use of the martensitic transformation or further increasing the temperature to use the bimorph thermal effect. The biocompatibility of both the TiNi and DLC films has been investigated using a cell-culture method. {\textcopyright} 2008 IOP Publishing Ltd.",

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AB - A TiNi/diamond-like-carbon (DLC) microcage has been designed for biological applications. The structure is composed of a top layer of TiNi film and a bottom layer of highly compressively stressed DLC for upward bending once released from the substrate. The fingers of the microcage quickly close through the shape memory effect once the temperature reaches the austenite start transformation point to execute the gripping action. Opening the microcage is realized by either decreasing the temperature to make use of the martensitic transformation or further increasing the temperature to use the bimorph thermal effect. The biocompatibility of both the TiNi and DLC films has been investigated using a cell-culture method. © 2008 IOP Publishing Ltd.

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A shape memory microcage of TiNi/DLC films for biological applications

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