Abstract
Adhesives for interaction with human skin and tissues are needed for multiple applications. Micropatterned dry adhesives are potential candidates, allowing for a conformal contact and glue-free adhesion based on van der Waals interactions. In this study, we investigate the superior adhesion of film-terminated fibrillar microstructures (fibril diameter, 60 μm; aspect ratio, 3) in contact with surfaces of skin-like roughness (Rz 50 μm). Adhesion decays only moderately with increasing roughness, in contrast to unstructured samples. Sinusoidal model surfaces adhere when their wavelengths exceed about four fibril diameters. The film-terminated microstructure exhibits a saturation of the compressive force during application, implying a pressure safety regime protecting delicate counter surfaces. Applications of this novel adhesive concept are foreseen in the fields of wearable electronics and wound dressing.
Recommended Citation
G. Moreira Lana et al., "Film-Terminated Fibrillar Microstructures With Improved Adhesion On Skin-like Surfaces," ACS Applied Materials and Interfaces, vol. 14, no. 41, pp. 46239 - 46251, American Chemical Society, Oct 2022.
The definitive version is available at https://doi.org/10.1021/acsami.2c12663
Department(s)
Chemical and Biochemical Engineering
Publication Status
Open Access
Keywords and Phrases
bioinspired structures; dry adhesion; roughness; skin adhesives; soft layer
International Standard Serial Number (ISSN)
1944-8252; 1944-8244
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Publication Date
19 Oct 2022
PubMed ID
36195314
Comments
European Research Council, Grant 842613