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Author: wyatt vreeland

Displaying records 11 to 20 of 32 records.
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11. Contactless Differential Conductivity Detection
Published: 10/12/2008
Authors: Gordon Allan Shaw, David J Ross, Steven Earl Fick, Wyatt N Vreeland
Abstract: We propose a new technique, contactless differential conductivity detection (CDCD,) to improve the detection limit of contactless conductivity detection for capillary and microchannel electrophoresis. By exploiting a 3-electrode differential configu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=824689

12. Microfluidic DNA Analysis Systems for Forensic Applications
Series: Special Publication (NIST SP)
Report Number: 1083
Published: 7/18/2008
Authors: Michael Gaitan, Jayna J Shah, Darwin R Reyes-Hernandez, Pierre-Alain Auroux, Jon C Geist, Laurie E Locascio, Wyatt N Vreeland, David J Ross, Peter M Vallone, Paul Smith, Nicole Morgan, Tom Pohida, John Kakareka, Annelise Barron
Abstract: This report summarizes the NIST effort on microfluidic DNA analysis systems for forensic applications sponsored by the National Institute of Justice. Currently emerging microfluidics-based forensic systems are implemented in silica (glass) because t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33078

13. Controlled Encapsulation of a Hydrophilic Drug Simulant in Nano-Liposomes Using Continuous Flow Microfluidics
Published: 6/4/2008
Authors: Andreas Jahn, Joseph Earl Reiner, Wyatt N Vreeland, Don DeVoe, Laurie E Locascio, Michael Gaitan
Abstract: A new method to tailor the size and size distribution of nanometer scale liposomes and control loading of liposomes with a model drug in a continuous-flow microfluidic design is presented. Size and size dispersion are determined with tandem Asymmetr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32987

14. Liposome-Templated Supramolecular Assembly of Responsive Alginate Nanogels
Published: 3/14/2008
Authors: Jennifer S. Hong, Wyatt N Vreeland, Silvia H. De Paoli Lacerda, Laurie E Locascio, Michael Gaitan, Srinivasa R. Raghavan
Abstract: Nanosized gel particles (nanogels) are of interest for a variety of applications, including controlled release of drugs and single-molecule encapsulation. Here, we employ the cores of nanoscale liposomes as reaction vessels to template the assembly o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32779

15. Preparation of Nanoparticles by Continuous-Flow Microfluidics
Published: 2/15/2008
Authors: Andreas Jahn, Joseph Earl Reiner, Wyatt N Vreeland, Don DeVoe, Laurie E Locascio, Michael Gaitan
Abstract: We review a variety of micro- and nanoparticle formulations produced with microfluidic methods. A diverse variety of approaches to generate micro-scale and nano-scale particles have been reported. Here we emphasize the use of microfluidics, specifica ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32842

16. Microfluidic Directed Formation of Liposomes of Controlled Size
Published: 4/24/2007
Authors: Andreas Jahn, Wyatt N Vreeland, Don DeVoe, Laurie E Locascio, Michael Gaitan
Abstract: A new method to tailor liposome size and size distribution in a microfluidic format is presented. Liposomes are spherical structures formed from lipid bilayers that are from tens of nanometers to several micrometers in diameter. Liposome size and siz ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32578

17. Precise Characterization of Liposome Populations Formed in a 5-Channel Flow-Focused System
Published: 11/9/2006
Authors: Andreas Jahn, Wyatt N Vreeland, Don DeVoe, Laurie E Locascio, Michael Gaitan
Abstract: Previously, we demonstrated liposome formation using hydrodynamic focusing in a microfluidic network which enables us to produce liposomes of a controlled size and size distribution in a reproducible fashion [1]. Former measurements on liposomes were ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32467

18. Microfluidic-Directed Molecular Self-Assembly and Templating of Bio-Inspired Nanoparticles
Published: 10/7/2006
Authors: Wyatt N Vreeland, Jennifer S. Hong, Andreas Jahn, Srinivasa R. Raghavan, Laurie E Locascio, Michael Gaitan
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32675

19. Surface Modification of PMMA for Application of Wall Coating Polymers for Microchip Electrophoresis
Published: 9/1/2006
Authors: Jayna J Shah, Jon C Geist, Laurie E Locascio, Michael Gaitan, Rao Mulpuri, Wyatt N Vreeland
Abstract: The development of rapid and simple wall coating strategies for high resolution electrophoretic separation of DNA is of crucial importance for the successful implementation of miniaturized polymeric DNA analysis systems. In this report, we present an ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=32214

20. Scanning Temperature Gradient Focusing
Published: 8/2/2006
Authors: S J Hoebel, K M. Balss, Barbara Jo Jones, C Malliaris, Matthew S Munson, Wyatt N Vreeland, David J Ross
Abstract: Temperature gradient focusing (TGF) is a recently developed technique for the simultaneous concentration and electrophoretic separation of ionic analytes in microfluidic channels. One drawback to TGF as it has previously been described is the limited ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=832132



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