Surface-Tension-Induced Synthesis of Complex Particles Using Confined Polymeric Fluids


  • This study was supported by the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0082087), the Industrial Source Technology Development Programs (10033093) of the Ministry of Knowledge Economy (MKE) of Korea, a grant from the Korea Health 21 R&D Project, Ministry of Health and Welfare (Project No. A062254), Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean Government (MEST) (MEST No. R01-2008-000-11260-0), the NSF-sponsored Materials Research Science and Engineering Center at Harvard University (DMR-0820484), and the NSF (DMR-0602684).


original image

Resolving the tension: Complex particles with various shapes such as bullets, cylinders, discs, hearts, hexagons, and Janus particles can be synthesized by two different surface-tension-induced flow sequences (A and B; see picture, scale bars=100 μm). The particles produced by using this approach can be exploited as anisotropic building blocks for the fabrication of complex systems by combination of the two sequences.