| 초록 |
Combining photolithography with microfluidic methods, flow lithography (FL) has been a powerful synthesis technique that enables the mass-production of hydrogel microparticles with geometrical and chemical patterns. However, in the early version of FL, the geometrical and chemical patterns in particles have been limited to 2D and 1D, respectively. Moreover, the technique has required gas permeable polydimethylsiloxane (PDMS) flow channels which are incompatible with many organic solvent flows. In this presentation, we introduce advanced flow lithography techniques that can achieve much higher degree of geometrical and chemical complexity in particles than before. For example, these techniques can be used to create hydrogel particles with 3D morphologies and chemical patterns. In addition, we have extended the process of FL to non-PDMS based channels, and synthesized a novel class of functional particles from organic precursors. |
