Microstructuring of Polyelectrolyte Coated Surfaces for Directing Capsule Adhesion
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We use microcontact printing (μCP) of polyelectrolytes (PEs) onto flat substrates for creating surfaces with regions of negative and positive surface charge. Subsequent incubation of these surfaces with solutions containing hollow PE capsules leads to preferential adsorption of the capsules on regions of opposite charge, while regions of like charge are passivated against adhesion. As well, adsorption of fluorescently labeled PEs is found to be directed toward oppositely charged regions at neutral pH. This approach could lead to novel functional surfaces for combinatorial chemistry or sensor applications and could also be expanded toward cell immobilization.
Details
Original language | English |
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Pages (from-to) | 22-26 |
Number of pages | 5 |
Journal | IEEE Transactions on Nanobioscience |
Volume | 3 |
Issue number | 1 |
Publication status | Published - Mar 2004 |
Peer-reviewed | Yes |
Externally published | Yes |
External IDs
PubMed | 15382639 |
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Keywords
ASJC Scopus subject areas
Keywords
- Adhesion, Functional surfaces, Microcapsules, Microfluidics, Micromechanics, Polyelectrolytes (pes), Wettability