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

Yong Qing Fu; J. K. Luo; Soon-Eng Ong; Sam Zhang; Andrew Flewitt; William Milne

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

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

Yong Qing Fu, J. K. Luo, Soon-Eng Ong, Sam Zhang, Andrew Flewitt, William Milne

Mathematics, Physics and Electrical Engineering

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.

Original language	English
Pages (from-to)	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 - 6 Feb 2008

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title = "A shape memory microcage of TiNi/DLC films for biological applications",

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.",

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AU - Luo, J. K.

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AU - Zhang, Sam

AU - Flewitt, Andrew

AU - Milne, William

PY - 2008/2/6

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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.

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DO - 10.1088/0960-1317/18/3/035026

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JO - Journal of Micromechanics and Microengineering

JF - Journal of Micromechanics and Microengineering

IS - 3

ER -

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

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