Shrinkage of polyurethane molecular stamp fixed on epoxy resin modified glass substrate

Zhengchun Liu; Quanguo He; Pengfeng Xiao; Jianxin Tang; Nongyue He; Zuhong Lu

doi:10.1117/12.472714

17 January 2003 Shrinkage of polyurethane molecular stamp fixed on epoxy resin modified glass substrate

Zhengchun Liu, Quanguo He, Pengfeng Xiao, Jianxin Tang, Nongyue He, Zuhong Lu

Proceedings Volume 4982, Microfluidics, BioMEMS, and Medical Microsystems; (2003) https://doi.org/10.1117/12.472714
Event: Micromachining and Microfabrication, 2003, San Jose, CA, United States

Abstract

The shrinkage of polyurethane stamps used for the in situ synthesis of DNA microarrays via molecular stamping method was studied with Micron XYZ Scope. It was found that the polyurethane stamp fixed on the epoxy resin modified glass strongly and showed minimum linear shrinkage. The linear shrinkage of the whole polyurethane stamp and that of each feature of polyurethane stamp were controlled within 0.0341% and 0.309%, respectively, which were due to the strong van der Waals forces and hydrogen bonds between polyurethane and epoxy resin. It was also confirmed by scanning electron microscope that the polyurethane stamp fixed on the epoxy resin modified glass replicated the patterns of motherboard with a high fidelity. All these underlay the synthesis of DNA microarray through molecular stamping method.

Citation Download Citation

Zhengchun Liu, Quanguo He, Pengfeng Xiao, Jianxin Tang, Nongyue He, and Zuhong Lu "Shrinkage of polyurethane molecular stamp fixed on epoxy resin modified glass substrate", Proc. SPIE 4982, Microfluidics, BioMEMS, and Medical Microsystems, (17 January 2003); https://doi.org/10.1117/12.472714

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