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Search Publications by: Kimberly A. Briggman (Fed)

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Displaying 26 - 50 of 62

Trapping and Release of Citrate-Capped Gold Nanoparticles

August 1, 2011
Author(s)
Darwin R. Reyes-Hernandez, Geraldine I. Mijares, Brian J. Nablo, Kimberly A. Briggman, Michael Gaitan
An electrical method to trap and release charged gold nanoparticles on and from the surface of alkanethiol self-assembled-monolayer (SAM) modified gold electrodes is presented. Gold nanoparticle (GNP) coated electrodes were formed by immersing amine

Electrical Manipulation of Gold Nanoparticles for Microfluidic Applications

October 16, 2008
Author(s)
Darwin R. Reyes-Hernandez, Geraldine I. Mijares, Kimberly A. Briggman, Jon C. Geist, Michael Gaitan
An electrical method to trap and release gold nanoparticles to and from the surface of alkanethiol-modified gold electrodes is presented. When a positive bias versus a Ag/AgCl reference electrode was applied to gold electrodes, negatively-charged gold

Cholesterol/Phospholipid Interactions in Hybrid Bilayer Membranes

May 25, 2007
Author(s)
Dustin Levy, Kimberly Briggman
The interactions between cholesterol and saturated phospholipids in hybrid bilayer membranes (HBMs) were investigated using the interface-sensitive technique of vibrational sum frequency spectroscopy (VSFS). The unique sensitivity of VSFS to order/disorder

Characterization and Control of Lipid Layer Fluidity in Hybrid Bilayer Membranes

January 31, 2007
Author(s)
Neil A. Anderson, Lee J. Richter, John C. Stephenson, Kimberly A. Briggman
The main gel-to-liquid-crystal (LC) phase transition temperature, Tm, of the distal lipid layer in hybrid bilayer membranes (HBMs) under water was investigated using vibrational sum frequency spectroscopy (VSFS). VSFS has unique sensitivity to order

Fluorescence Intermittency and Spectral Shifts of Single Bio-Conjugated Nanocrystals Studied by Single Molecule Confocal Fluorescence Microscopy and Spectroscopy

January 21, 2007
Author(s)
Hyeong G. Kang, Mathew Maye, Dmytro Nykypanchuk, Matthew L. Clarke, Peter Yim, J R. Krogmeier, Kimberly A. Briggman, Oleg Gang, Jeeseong Hwang
We have fabricated a combined measurement system capable of confocal microscopy and fluorescence spectroscopy to simultaneously evaluate multiple optical characteristics of single fluorescent nanocrystals. The single particle detection sensitivity is

Determination of Lipid Phase Transition Temperatures in Hybrid Bilayer Membranes

September 9, 2006
Author(s)
Neil A. Anderson, Lee J. Richter, John C. Stephenson, Kimberly A. Briggman
The main gel to liquid crystal (LC) phase transition temperature, Tm, of the lipid monolayers in hybrid bilayer membranes (HBMs) was investigated using vibrational sum frequency spectroscopy (VSFS). The unique sensitivity of VSFS to probe order/disorder

Effects of Surface Functionality and Humidity on The Adhesion Force and Chemical Contrast Measured With AFM

January 1, 2005
Author(s)
Tinh Nguyen, Xiaohong Gu, lijiang chen, Michael J. Fasolka, Kimberly Briggman, Jeeseong C. Hwang, Jonathan W. Martin
The ability to probe chemical heterogeneity with nanometer scale resolution is essential for developing a molecular level understanding of a variety of phenomena occurring at surfaces of materials. One area that could benefit greatly from nanoscale

Correlation of Molecular Orientation with Adhesion at Polystyrene/Soild Interfaces

September 1, 2002
Author(s)
P T. Wilson, Lee J. Richter, William E. Wallace, Kimberly A. Briggman, John C. Stephenson
Vibrationally resonant sum-frequency generation (VR-SFG) has been used to characterize the molecular orientation of the phenyl groups at the interface between polystyrene (PS) films and surface-modified glass substrates. Both the interface structure and