Low-Distortion Surface Functionalization of Polymeric Microstructures
Abbreviated Journal Title
Macromol. Chem. Phys.
Keywords
metallization; microelectromechanical systems (MEMS); microfluidics; microstructure; surface functionalization; PHOTONIC CRYSTALS; MICROANALYTICAL DEVICES; HOLOGRAPHIC LITHOGRAPHY; MICROFLUIDIC DEVICES; IN-SITU; FABRICATION; SU-8; NANOPARTICLES; PROTEIN; SILICA; Polymer Science
Abstract
Polymeric microstructures can be immersed in an organic solution containing a reactive linker to functionalize the surface for attachment of nanoparticles, fluorescent dyes, proteins, DNA, and other species. However, organic media can swell and distort polymeric microstructures. Swelling and distortion can be irreversible when the linkers are themselves low-molecular-weight organics like ethylenediamine, which can bind to unreacted monomer groups or other functionalities within the polymer matrix. This work introduces an alternative approach for surface functionalization based on aqueous processing using higher-molecular-weight amines, which causes less distortion, but is comparably effective. The processes are compared by aminating crosslinked SU-8 thin films and 3D "woodpile" microstructures, electrolessly depositing copper onto these primed surfaces, and measuring the amount of copper deposited and the degree of distortion caused by amination. The method provides a new route to low-distortion SU-8 microstructures and identifies a path for improving related processing with other polymeric materials and structure types.
Journal Title
Macromolecular Chemistry and Physics
Volume
215
Issue/Number
16
Publication Date
1-1-2014
Document Type
Article
Language
English
First Page
1533
Last Page
1542
WOS Identifier
ISSN
1022-1352
Recommended Citation
"Low-Distortion Surface Functionalization of Polymeric Microstructures" (2014). Faculty Bibliography 2010s. 5603.
https://stars.library.ucf.edu/facultybib2010/5603
Comments
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