Gecko-Like Dry Adhesive Surfaces and Their Applications: A Review

Abstract

Gecko has the ability to climb flexibly on various natural surfaces because of its fine layered adhesion system of foot, which has motivated researchers to carry out a lot of researches on it. Significant progresses have been made in the gecko-like dry adhesive surfaces in the past 2 decades, such as the mechanical measurement of adhesive characteristics, the theoretical modeling of adhesive mechanism and the production of synthetic dry adhesive surfaces. Relevant application researches have been carried out as well. This paper focuses on the investigations made in recent years on the gecko-like dry adhesive surfaces, so as to lay the foundation for further research breakthroughs. First, the adhesion system of gecko’s foot and its excellent adhesive characteristics are reviewed, and the adhesive models describing the gecko adhesion are summarily reviewed according to the different contact modes. Then, some gecko-like dry adhesive surfaces with outstanding adhesive characteristics are presented. Next, some application researches based on the gecko-like dry adhesive surfaces are introduced. Finally, the full text is summarized and the problems to be solved on the gecko-like dry adhesive surfaces are prospected.

Learning from biological attachment devices: applications of bioinspired reversible adhesive methods in robotics

“…We focus on classification of bioinspired dry adhesives, and their applications in robotics are discussed in this work. References [44,45] show the state of art information on the features and manufacturing processes of various types of dry adhesives. A growing number of climbing robots and robotic gripper attachment devices use dry adhesives for attachment due to their popularity.…”

“…Generally, fibrils made by silicon rubbers, such as polydimethylsiloxane (PDMS) and polyvinyl siloxane (PVS), are demold easily, hydrophobic, environmentally insensitive, and reusable. They also have advantages on self-cleaning property and low surface energy [44]. The MSAMS adhesive surfaces can be fabricated by demolding from the master mold, photolithography, and etching [65].…”

Design of a Variable Stiffness Gecko-Inspired Foot and Adhesion Performance Test on Flexible Surface

“…Currently, the model that is useful to describe the desorption process is the Kendall Tape model, proposed by Ravin and improved by Kendall [ 24 , 25 ]. Based on the idea of conservation of energy, it is widely applicable to explain the process of elastic thin film from the rigid surface.…”

Projeto E Acionamento De Um Robô Lagartixa Pneumático Com Aplicação De Aprendizado Computacional

“…Existem também outros tipos de robôs escaladores na literatura, além dos robôs já mostrados anteriormente com mais detalhes. Em [21][22][23][24][25][26][27][28][29][30][31] pode-se encontrar um leque amplo de tipos de robôs capazes de escalar superfícies com diferentes inclinações. Estes trabalhos indicados mostram os projetos mecânicos e aplicações dos robôs, modelagens matemáticas dos seus sistemas, controles de movimentação e experimentos realizados com os mesmos.…”

“…Shao, D. et al [22] projetaram um robô lagartixa capaz de se deslocar em terrenos acidentados com aplicação de controle, além de realizarem experimentos para medição das forças. Wang, W. et al [23] focaram no estudo das superfícies adesivas secas desenvolvidas nos últimos anos para aplicação de robôs baseados em lagartixa. Chengwei et al [24] modelaram e projetaram um robô capaz de se mover em superfícies de paredes utilizando uma ventosa e hélices para manter a estabilidade.…”