Electroactive monolith μchips based on nanostructured polyaniline
Galineau, Jeremy and White, Blánaid and Smyth, Malcolm R. and Morrin, Aoife (2010) Electroactive monolith μchips based on nanostructured polyaniline. In: Macro2010, IUPAC World Polymer Congress: Polymer Science in the Service of Society , 11–16 Jul 2010, SECC, Glasgow..
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The extensive application of monolithic columns for HPLC is severely hindered by a lack of column-to-column reproducibility. EMμ(Electroactive Monolithic μChip) is a new concept that solves the significant reproducibility problems, as well as allowing miniaturization and improving overall efficiency through electrochemically controlled dynamic separations. This novel μchip has a micro-structured monolith fabricated from intelligent, electroactive polymer. By application of a specific potential, conducting polymers such as polyaniline (PANI) can be reproducibly grown and readily fine-tuned in terms of porosity, hydrophobicity an
d ionic capacity. This unique chip provides for an Electroac
tive Monolithic μchip capable of multi-dimensional chromatographic separations.
The monolith microstructuring (provided by templating) wi
ll provide reproducibility and improve efficiency by decre
asing the A-term of the Van Deemter equation. Furthermore, the use of these intelligen t materials will enable gradient control and redox reaction s to be exploited during
separations of large biomolecules.
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