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You searched on: Author: darwin reyes-hernandez

Displaying records 11 to 20 of 30 records.
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11. Dielectrophoretic Cell Capture on Polyester Membranes
Published: 4/2/2012
Authors: Conni Hanke, Petra S. Dittrich, Darwin R Reyes-Hernandez
Abstract: A new system for dielectrophoretic cell capture on porous polyester (PET) membranes is presented. Conventional photolithographic techniques were used to fabricate gold microelectrodes on a PET membrane. We characterized these electrodes to proof th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910623

12. Hybrid Cell Adhesive Material for Instant Dielectrophoretic Cell Trapping and Long Term Cell Function Assessment
Published: 8/16/2011
Authors: Darwin R Reyes-Hernandez, Jennifer S. Hong, John T Elliott, Michael Gaitan
Abstract: We present the development and evaluation of an engineered hybrid cell adhesive surface for instant dielectrophoretic trapping and patterning of cells in a microfluidic device. This work demonstrates that a hybrid cell adhesive material (hCAM) prepar ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906647

13. Trapping and Release of Citrate-Capped Gold Nanoparticles
Published: 8/1/2011
Authors: Darwin R Reyes-Hernandez, Geraldine I. Mijares, Brian Joseph Nablo, Kimberly A Briggman, Michael Gaitan
Abstract: 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 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904039

14. Instantaneous Trapping and Long Term Cell Survival Under Dielectrophoretic Conditions Using a Hybrid Cell Adhesive Surface
Published: 10/3/2010
Authors: Darwin R Reyes-Hernandez, Jennifer S. Hong, John T Elliott, Michael Gaitan
Abstract: A dielectrophoresis (DEP) microfluidic device that allows instantaneous trapping of cells for rapid return to cell growth conditions (within 5 minutes) and long-term cell experiments (cell proliferation, induction and differentiation) of embryonic P1 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906185

15. Microfluidic Based Contactless DielectrophoreticDevice: Modeling and Analysis
Published: 9/1/2010
Authors: Saugandhika Minnikanti, Darwin R Reyes-Hernandez, Ruben Claudio Aguilar, Joseph Pancrazio, Michael Gaitan, Nathalia Peixoto
Abstract: While there have been many attempts at patterning cells onto substrates, a reliable method for trapping cell clusters and forming cell arrays in a predefined geometry remains to be demonstrated. We intend to develop a multielectrode array platfor ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907086

16. Quantum Dot FRET Sensor for Enzymatic Activity in Microfluidic Device
Published: 6/22/2010
Authors: Georgeta Crivat, Sandra Maria Da Silva, Darwin R Reyes-Hernandez, Samuel P Forry, Laurie E Locascio, Michael Gaitan, Nitsa Rosenzweig, Zeev Rosenzweig
Abstract: This paper describes the development of new fluorescence resonance energy transfer (FRET)-based quantum dot probes for proteolytic activity. The CdSe/ZnS quantum dots are incorporated into a thin polymeric film, which is prepared by layer-by-laye ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907085

17. Polyelectrolyte Multilayer-Treated Electrodes for Real-Time Electronic Sensing Cell Proliferation
Series: Journal of Research (NIST JRES)
Published: 4/1/2010
Authors: Geraldine I. Mijares, Darwin R Reyes-Hernandez, Jon C Geist, Michael Gaitan
Abstract: The feasibility of using and the performance of non-biological polyelectrolyte multilayer (PEM) films to facilitate cell attachment on titanium-tungsten alloy/gold (TiW/Au) electrodes for the detection of cellular responses in cell assays are investi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33183

18. Quantum Dot FRET-Based Probes in Thin Films Grown in Microfluidic Channels
Published: 1/14/2010
Authors: Georgeta Crivat, Sandra Maria Da Silva, Darwin R Reyes-Hernandez, Laurie E Locascio, Michael Gaitan, Nitsa Rosenzweig, Zeev Rosenzweig
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905049

19. Electrical Manipulation of Gold Nanoparticles for Microfluidic Applications
Published: 10/16/2008
Authors: Darwin R Reyes-Hernandez, Geraldine I. Mijares, Kimberly A Briggman, Jon C Geist, Michael Gaitan
Abstract: 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 go ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=33077

20. 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



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