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Zukoski, Charles F. Kokkoli, Efrosini 2015-09-25T20:44:09Z 2015-09-25T20:44:09Z 10000-01-01 1998 1998 Hydrophobic and hydrophilic interactions are not additive and the net interactions between heterogeneous surfaces depend on the relative size of hydrophobic and hydrophilic sites on the surface. Independent on whether the hydrophobic sphere is positioned on top of a hydrophobic or hydrophilic area, repulsions are measured, with the same strength and decay length of the electrostatic interaction. Jump into contact distances and adhesion data, between a 20 $\mu$m hydrophobic sphere and a heterogeneous surface that has equal hydrophobic and hydrophilic areas will average, whereas in all other cases the hydrophobic sphere will clearly differentiate between the different areas, accurately mapping high and low adhesion areas on the surface. Made available in DSpace on 2015-09-25T20:44:09Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9904511.pdf: 4538932 bytes, checksum: 119bc3902a0df6324f3a0c7bcdf89034 (MD5) Previous issue date: 1998 Embargo set by: Seth Robbins for item 83732 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 115 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998. http://hdl.handle.net/2142/82451 (MiAaPQ)AAI9904511 eng Engineering, Chemical Mapping Interactions Between Micropatterned Hydrophobic and Hydrophilic Surfaces by Atomic Force Microscopy text Chemical Engineering Chemical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.