Studies in microfluidic devices usually deal with sophisticated nanostructures for improving their performance but it is equally important to control the chemical, physical nature of the channels where the actual event would be held. This need in manipulating surface properties of microfluidic channel, however, has not been easy question since there are only limited choice of materials can be provided. In this paper, we introduce the functionalized substrate coatings with nano-porous and biologically inert properties, which can be a great candidate to solve the problems in micro-fluidic device modification. In particular, stimuli-responsive polyelectrolytes were used for the surface wettability control, chemical functionality and patterning. With these polymer coatings, aqueous analyte solution was successfully delivered into micro-channel without external pressurized devices. In addition to that, surface-functioanlized nonoparticles were combined to the system, which may be useful in delivery and/or detection for biosensors.

Porous and stealthy polymer coated magnetic colloidal particles for microfluidic system

244th National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.