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Search Publications by: Rebecca A Zangmeister (Fed)

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Displaying 26 - 40 of 40

Equilibrium Electrostatics of Responsive Polyelectrolyte Monolayers

January 14, 2009
Author(s)
Rebecca A. Zangmeister, Rastislav Levicky, Kang Wang
The physical behavior of polyelectrolytes at solid-liquid interfaces presents challenges both in measurement and in interpretation. An informative, yet often overlooked, property that characterizes the equilibrium organization of these systems is their

Quantifying the Surface Coverage of Conjugate Moleucles on Functionalized Nanoparticles

November 22, 2007
Author(s)
Leonard F. Pease III, De-Hao D. Tsai, Rebecca A. Zangmeister, M Zachariah, Michael J. Tarlov
Electrospray-differential mobility analysis (ES-DMA) represents an attractive tool to determine directly the coverage and conformation of long, flexible molecules on engineered nanoparticles. For example, nanoparticles coated with single-stranded DNA

Electrochemical Study of Chitosan Films Deposited on Gold Electrodes

July 28, 2006
Author(s)
Rebecca A. Zangmeister, J J. Park, G W. Rubloff, Michael J. Tarlov
We report the electrochemical characterization of chitosan films deposited on gold electrodes. Cyclic voltammetry was used to characterize the deposition and electroactivity of chitosan coated gold electrodes. Chitosan films were found to deposit at a gold

DNA Displacement Assay Integrated into Microfluidic Channels

July 1, 2004
Author(s)
Rebecca A. Zangmeister, Michael J. Tarlov
This paper describes the development of a unique fluorescence based DNA diagnostic assay incorporated into a microfluidic channel that does not require labeling of the target sequence prior to analysis. The assay is based on the displacement of a short

Selective DNA Sensing Elements Integrated Into Microfluidic Channels

December 1, 2003
Author(s)
Rebecca A. Zangmeister, Michael J. Tarlov
This paper describes the development of a unique fluorescence based DNA diagnostic assay that does not require pre-labeling of the target oligomer prior to analysis. The assay uses polyacrylamide hydrogel plugs immobilized in microfluidic channels, and is

DNA Hydrogel Plugs Immobilized in Microfluidic Channels with Improved Stability

February 28, 2002
Author(s)
Rebecca A. Zangmeister, K G. Olsen, David J. Ross, Michael J. Tarlov
It has been previously demonstrated that DNA, modified on the 5' end with an acrylic acid group, can be incorporated into a polyacrylamide hydrogel matrix. These types of DNA containing gels have recently been immobilized in plastic microfluidic channels