UV-assisted capillary force lithography for engineering biomimetic multiscale hierarchical structures: From lotus leaf to gecko foot hairs.
This feature article provides an overview of the recently developed two-step UV-assisted capillary force lithography and its application to fabricating well-defined micro/nanoscale hierarchical structures. This method utilizes an oxygen inhibition effect in the course of UV irradiation curing and a two-step moulding process, to form multiscale hierarchical or suspended nanobridge structures in a rapid and reproducible manner. After a brief description of the fabrication principles, several examples of the two-step UV-assisted moulding technique are presented. In addition, emerging applications of the multiscale hierarchical structures are briefly described.
Jeong
Hoon Eui
HE
Seoul National University, Korea.
Kwak
Rhokyun
R
Khademhosseini
Ali
A
Suh
Kahp Y
KY
D000465:Algorithms; D000825:Animal Structures / Q000033:anatomy & histology*; D000818:Animals; D040761:Biomimetic Materials / Q000737:chemistry*; D005528:Foot / Q000033:anatomy & histology; D008116:Lizards; D000070116:Lotus; D008855:Microscopy, Electron, Scanning; D008856:Microscopy, Fluorescence; D008962:Models, Theoretical; D049329:Nanostructures / Q000737:chemistry / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D018515:Plant Leaves / Q000033:anatomy & histology; D015203:Reproducibility of Results; D014466:Ultraviolet Rays