Self Assembly of Highly Ordered Nano-colloid Array on Patterned Peg Hydrogel
نویسندگان
چکیده
A novel micropattern-assisted nanoassembly (μPAN) method to organize highly ordered nanocolloidal arrays onto a nonfouling polymeric surface is reported. A high-density array of polyethylene glycol (PEG) hydrogel microwells is first fabricated on glass substrates with the minimal feature resolution of 1 μm using photolithography method. By simply controlling the colloidal concentration of the dipping solution, various well organized nanocolloidal patterns are assembled inside the PEG microwells. The novel μPAN method allows organizing highly ordered nanocolloidal arrays in a predictable and robust fashion, and may have future applications in photonic crystal fabrication, biological sensing, analytical detection and nanoassembly.
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