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Bioinspired Dry Adhesives for Highly Adaptable and Stable Manipulating Irregular Objects under Vibration

For dry adhesive–based operation, highly adaptable and stable manipulation is important but also challenging, especially for irregular objects with complex surface (such as abrupt profile and acute projection) under vibration‐inducing environments. Here, a multi‐scale adhesive structure, with mechan...

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Detalles Bibliográficos
Autores principales: Wang, Duorui, Tian, Hongmiao, Liu, Haoran, Zhang, Jinyu, Hu, Hong, Li, Xiangming, Wang, Chunhui, Chen, Xiaoliang, Shao, Jinyou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10375138/
https://www.ncbi.nlm.nih.gov/pubmed/37150863
http://dx.doi.org/10.1002/advs.202302512
Descripción
Sumario:For dry adhesive–based operation, highly adaptable and stable manipulation is important but also challenging, especially for irregular objects with complex surface (such as abrupt profile and acute projection) under vibration‐inducing environments. Here, a multi‐scale adhesive structure, with mechanically isolated energy‐absorbing backing, based on the synergistic action of microscale contact end (seta), mesoscale supporting layer (lamella), and macroscopic backing (muscle tissues) of gecko's sole, is proposed. Top layer of mushroom‐like micro tips provides dry adhesion via mimicking gecko's seta, and bottom layer of physical cuts and porous feature achieves the interfacial mechanical decoupling and crack inhibition via mimicking the non‐continuous distributing of lamella and compliance of muscle. The proposed dry adhesive exhibits excellent adaptable adhesion to various objects with curved or irregular surfaces, even for that with abrupt contours, as well as an amazing stable anti‐vibration ability, opening a new avenue for the development of dry adhesive–based device or system.