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Nanoscale Surface Patterning

Published online by Cambridge University Press:  15 February 2011

Meng Yu
( of Biomedical Engineering and Department of Chemistry Purdue University, West Lafayette, IN 47907
Albena Ivanisevic
( of Biomedical Engineering and Department of Chemistry Purdue University, West Lafayette, IN 47907
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We present a methodology based on Dip-Pen Nanolithography 1 to fabricate nanoscale surface patterns composed of polyelectrolytes. Two widely used polymers Poly(diallyldimethylammonium chloride) (PDDA) and Poly(sodium 4-styrenesulfonate) PSS were chosen as the DPN “inks”. Patterns were created and evaluated on silicon oxide surfaces using an Atomic Force Microscope (AFM). To compare the polymer packing and the height of the nanopatterns, additional fabrication was performed using microcontact printing. We were able to generate structures with better polymer packing using DPN and control the height of the polymer structures more reproducibly compared to microcontact printing.

Research Article
Copyright © Materials Research Society 2003

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