Cited by 71Advanced Materials and MechanicsSurface Modification and SuperhydrophobicityNanofabrication and Lithography Techniques

Switchable Micropatterned Surface Topographies Mediated by Reversible Shape Memory

Turner, Sara A., Zhou, Jing, Sheiko, Sergei S., Ashby, Valerie Sheares·2014·ACS Applied Materials & Interfaces

Abstract

Reversibly switching topography on micrometer length scales greatly expands the functionality of stimuli-responsive substrates. Here we report the first usage of reversible shape memory for the actuation of two-way transitions between microscopically patterned substrates, resulting in corresponding modulations of the wetting properties. Reversible switching of the surface topography is achieved through partial melting and recrystallization of a semi-crystalline polyester embossed with microscopic features. This behavior is monitored with atomic force microscopy (AFM) and contact angle measurements. We demonstrate that the magnitude of the contact angle variations depends on the embossment pattern.

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Crossref · 10.1021/am501970d

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  • To achieve stress-free reversible shape memory, current approaches rely on introduction of internal stress, typically necessitating two crystalline phases.

    “To achieve stress-free reversible shape memory33–36, current approaches rely on the introduction of an internal stress. This typically necessitates the use of two crystalline phases in which the high melting phase provides the internal stress whereas the low melting phase serves as the actuation phase33–35.”

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Authors
Turner, S. A., Zhou, J., Sheiko, S. S., & Ashby, V. S.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
Ashby, Valerie Sheares
Venue
ACS Applied Materials & Interfaces
Published
2014-05-21
Volume
6
Issue
11
Pages
8017-8021
ISSN
  • 1944-8244 (ISSN-L)
  • 1944-8252
OpenAlex
W2085256443
Cited by
71
References
29
Citations by year
2026: 1 · 2025: 2 · 2024: 8 · 2023: 4 · 2022: 6 · 2021: 6 · 2020: 11 · 2019: 7 · 2018: 8 · 2017: 4 · 2016: 4 · 2015: 10
FWCI
7.00
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Applied Materials & Interfaces (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • Division of Materials Research
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
  • Physical Sciences › Materials Science › Surfaces, Coatings and Films › Surface Modification and Superhydrophobicity
  • Physical Sciences › Engineering › Biomedical Engineering › Nanofabrication and Lithography Techniques
Keywords
wettability, micropatterning

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