Journal article
Fouling Release Mechanism of an Octopus‐Inspired Smart Skin
Advanced functional materials, Vol.34(41), 2406405
10/2024
DOI: 10.1002/adfm.202406405
Appears in UI Libraries Support Open Access
Abstract
This work proposes an octopus‐inspired smart skin for fouling release. The skin consists of twisted spiral artificial muscles (TSAMs) embedded between two layers of elastomer. Upon electro‐thermal actuation, TSAMs undergo vertical displacement (similarly to octopus’ papillae dermal muscles) and mechanically deform the top layer of the skin where the biofilm is attached. The release is achieved by generating a critical strain on the skin's top layer. In this paper, a physics‐based mechanical model is proposed to describe the fouling release mechanism of the smart skin. The model relates the critical strain to the mechanical properties of the biofilm, as well as the mechanical and electro‐thermal properties of the TSAMs. The model is experimentally validated, and a robust controller is implemented to achieve the desired critical strain and then perform release for two different types of biofilms: bacterial‐based Escherichia coli and diatom‐based Amphora coffeaeformis .
Details
- Title: Subtitle
- Fouling Release Mechanism of an Octopus‐Inspired Smart Skin
- Creators
- Rabiu Onoruoiza Mamman - University of IowaTatum Johnson - University of IowaThilina Weerakkody - University of IowaCaterina Lamuta - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Advanced functional materials, Vol.34(41), 2406405
- Publisher
- Wiley
- DOI
- 10.1002/adfm.202406405
- ISSN
- 1616-301X
- eISSN
- 1616-3028
- Language
- English
- Electronic publication date
- 06/18/2024
- Date published
- 10/2024
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Mechanical Engineering
- Record Identifier
- 9984643653902771
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