Langmuir, Vol.26, No.23, 18300-18302, 2010
Direct Patterning of Silanized-Biomolecules on Semiconductor Surfaces
A novel approach to pattern silanized-biomolecules directly onto glass (SiOx) substrates via Dip-Pen nanolitho-graphy (DPN) and microcontact printing (mu CP) is presented. Subsequent hybridization reactions of DPN patterned silanized-DNA with its complementary strands provide "proof-of-concept" that the patterned oligonucleotides maintain their biological activities. The fabrication strategy does not require premodification of substrates and offers a cheap and robust way to immobilize molecules on electronically important semiconductor surfaces.