Shape-Tunable Polymer Nanofibrillar Structures by Oblique Electron Beam Irradiation
Original entry: William Bonificio, AP 225, Fall 2009
Shape-Tunable Polymer Nanofibrillar Structures by Oblique Electron Beam Irradiation Tae-il Kim, Changhyun Pang, Kahp Y. Suh Langmuir 2009 25 (16), 8879-8882
Soft matter keywords
Shape tuning, nanofibrils, adhesion strength, nanovelcro
The researchers in this experiment were able to tune the shape of polymer nanofibrils using a very accessible and easy method. First they produced a polyurethane acrylate (PUA) nanofibril structure. Then, by bombarding the polymer with electrons at a shallow angle, the nanofibril structure begane bending over forming small hooks. The researchers forsee applications for adhesion as the stuctures resemble gecko setae, or 'nanovelcro'.