Fabrication and characterization of stable ultrathin film micropatterns containing DNA and photosensitive polymer diazoresin

Bing Yu; Hai-Lin Cong; Hu-Wei Liu; Cong-Hua Lu; Fang Wei; Wei-Xiao Cao
January 2006
Analytical & Bioanalytical Chemistry;Jan2006, Vol. 384 Issue 2, p385
Academic Journal
Stable, ultrathin DNA micropatterns were fabricated from photosensitive polymer diazoresin (DR) through a self-assembly technique. The micropatterns were achieved on LBL ultrathin film after UV exposure through a photomask. The patterns were characterized systematically with scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy and fluorescence microscopy. All of the results indicate that the combined LBL self-assembly and photolithography technique is a promising method for constructing stable, well-defined micropatterns with a nanoscale thickness.


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