title: Effect of tribological factors on wet adhesion of a microstructured surface to peritoneal tissue.
abstract: Bio-inspired microstructured surfaces have been developed that attach effectively to a wet surface. However, little is known about the associated tribological and adhesion properties involved. In this paper, the adhesion of a microstructured surface to peritoneal tissue is investigated as a function of preload, speeds of approach and angle of tilt to the horizontal. Results show that within a critical range of preload and speed of approach of the microstructured surface to the tissue result in good adhesion characteristics at the micro-structured surface/tissue interface. The microstructured surface adhesion to the tissue and the payload supported against gravity depend significantly on the tilt angle to the horizontal. Furthermore, a wet adhesion model was used to elucidate the adhesion mechanism of the microstructured surface to a wetted glass. These tests provide significant initial data for the design of a miniature mobile intra-abdominal device which drives the need for this adhesion study.
authors.affiliation: Institute of Engineering Thermofluids, Surfaces & Interfaces, School of Mechanical Engineering, University of Leeds, Leeds LS2 9JT, UK. r.roshan@leeds.ac.uk
authors.forename: R
authors.initials: R
authors.lastname: Roshan
authors.forename: D G
authors.initials: DG
authors.lastname: Jayne
authors.forename: T
authors.initials: T
authors.lastname: Liskiewicz
authors.forename: G W
authors.initials: GW
authors.lastname: Taylor
authors.forename: P H
authors.initials: PH
authors.lastname: Gaskell
authors.forename: L
authors.initials: L
authors.lastname: Chen
authors.forename: A
authors.initials: A
authors.lastname: Montellano-Lopez
authors.forename: A
authors.initials: A
authors.lastname: Morina
authors.forename: A
authors.initials: A
authors.lastname: Neville
mesh_terms: D034861:Abdominal Wall; D000268:Adhesiveness; D000818:Animals; D006801:Humans; D010537:Peritoneum; D051381:Rats; D017155:Wettability