Origami-inspired thin-film shape memory alloy devices

Abstract We describe the design and fabrication of miniaturized origami structures based on thin-film shape memory alloys. These devices are attractive for medical implants, as they overcome the opposing requirements of crimping the implant for insertion into an artery while keeping sensitive parts...

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Autores principales:	Prasanth Velvaluri, Arun Soor, Paul Plucinsky, Rodrigo Lima de Miranda, Richard D. James, Eckhard Quandt
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ab923cd40c804c73974429a030ef4e7e
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spelling	oai:doaj.org-article:ab923cd40c804c73974429a030ef4e7e2021-12-02T14:49:24ZOrigami-inspired thin-film shape memory alloy devices10.1038/s41598-021-90217-32045-2322https://doaj.org/article/ab923cd40c804c73974429a030ef4e7e2021-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-90217-3https://doaj.org/toc/2045-2322Abstract We describe the design and fabrication of miniaturized origami structures based on thin-film shape memory alloys. These devices are attractive for medical implants, as they overcome the opposing requirements of crimping the implant for insertion into an artery while keeping sensitive parts of the implant nearly stress-free. The designs are based on a group theory approach in which compatibility at a few creases implies the foldability of the whole structure. Importantly, this approach is versatile and thus provides a pathway for patient-specific treatment of brain aneurysms of differing shapes and sizes. The wafer-based monolithic fabrication method demonstrated here, which comprises thin-film deposition, lithography, and etching using sacrificial layers, is a prerequisite for any integrated self-folding mechanism or sensors and will revolutionize the availability of miniaturized implants, allowing for new and safer medical treatments.Prasanth VelvaluriArun SoorPaul PlucinskyRodrigo Lima de MirandaRichard D. JamesEckhard QuandtNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Prasanth Velvaluri Arun Soor Paul Plucinsky Rodrigo Lima de Miranda Richard D. James Eckhard Quandt Origami-inspired thin-film shape memory alloy devices
description	Abstract We describe the design and fabrication of miniaturized origami structures based on thin-film shape memory alloys. These devices are attractive for medical implants, as they overcome the opposing requirements of crimping the implant for insertion into an artery while keeping sensitive parts of the implant nearly stress-free. The designs are based on a group theory approach in which compatibility at a few creases implies the foldability of the whole structure. Importantly, this approach is versatile and thus provides a pathway for patient-specific treatment of brain aneurysms of differing shapes and sizes. The wafer-based monolithic fabrication method demonstrated here, which comprises thin-film deposition, lithography, and etching using sacrificial layers, is a prerequisite for any integrated self-folding mechanism or sensors and will revolutionize the availability of miniaturized implants, allowing for new and safer medical treatments.
format	article
author	Prasanth Velvaluri Arun Soor Paul Plucinsky Rodrigo Lima de Miranda Richard D. James Eckhard Quandt
author_facet	Prasanth Velvaluri Arun Soor Paul Plucinsky Rodrigo Lima de Miranda Richard D. James Eckhard Quandt
author_sort	Prasanth Velvaluri
title	Origami-inspired thin-film shape memory alloy devices
title_short	Origami-inspired thin-film shape memory alloy devices
title_full	Origami-inspired thin-film shape memory alloy devices
title_fullStr	Origami-inspired thin-film shape memory alloy devices
title_full_unstemmed	Origami-inspired thin-film shape memory alloy devices
title_sort	origami-inspired thin-film shape memory alloy devices
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ab923cd40c804c73974429a030ef4e7e
work_keys_str_mv	AT prasanthvelvaluri origamiinspiredthinfilmshapememoryalloydevices AT arunsoor origamiinspiredthinfilmshapememoryalloydevices AT paulplucinsky origamiinspiredthinfilmshapememoryalloydevices AT rodrigolimademiranda origamiinspiredthinfilmshapememoryalloydevices AT richarddjames origamiinspiredthinfilmshapememoryalloydevices AT eckhardquandt origamiinspiredthinfilmshapememoryalloydevices
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Origami-inspired thin-film shape memory alloy devices

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