Simultaneous Microfabrication and Tuning of the Permselective Properties in Microporous Polymers Using X-ray Lithography (pages 2277–2282)
Sang Hoon Han, Cara M. Doherty, Benedetta Marmiroli, Hye Jin Jo, Dario Buso, Alessandro Patelli, Piero Schiavuta, Plinio Innocenzi, Young Moo Lee, Aaron W. Thornton, Anita J. Hill and Paolo Falcaro
Article first published online: 28 FEB 2013 | DOI: 10.1002/smll.201202735
Microchannels are fabricated using a photosensitive polymer to which microporosity is tuned with different X-ray doses. Using hard X-ray irradiation, the micropattern is positioned with various geometries in a multi-level, three-dimensional structure, while controlling the pore size and transport properties of small molecules. This highly reliable fabrication process has potential for use in microfluidic devices with enhanced transport properties through microchannels.