Air-trapping on biocompatible nanopatterns.
The occurrence of air-trapping inside poly-eta-caprolactone nanopits was investigated by measuring the contact angles of water droplets on a set of defined nanotopographies. It is shown that the advancing angles follow the Cassie-Baxter theory, thus revealing the presence of air bubbles inside the biodegradable nanopatterns. The importance of these observations for the definition of hydrophilicity/hydrophobicity and in the context of in vitro cell behavior is discussed.
Martines
Elena
E
Centre for Cell Engineering, IBLS, University of Glasgow, Glasgow G12 8QQ, UK.
Seunarine
Kris
K
Morgan
Hywel
H
Gadegaard
Nikolaj
N
Wilkinson
Chris D W
CD
Riehle
Mathis O
MO
D000042:Absorption; D000388:Air; D001672:Biocompatible Materials / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D053758:Nanoparticles / Q000737:chemistry*; D011091:Polyesters / Q000737:chemistry*
D001672:Biocompatible Materials; D011091:Polyesters; C016240:polycaprolactone