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Author: darwin reyes-hernandez
Displaying records 11 to 20 of 26 records.
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11. Microfluidic Based Contactless DielectrophoreticDevice: Modeling and Analysis
Saugandhika Minnikanti, Darwin R Reyes-Hernandez, Ruben Claudio Aguilar, Joseph Pancrazio, Michael Gaitan, Nathalia Peixoto
12. Quantum Dot FRET Sensor for Enzymatic Activity in Microfluidic Device
Georgeta Crivat, Sandra Maria Da Silva, Darwin R Reyes-Hernandez, Samuel P Forry, Laurie E Locascio, Michael Gaitan, Nitsa Rosenzweig, Zeev Rosenzweig
13. Polyelectrolyte Multilayer-Treated Electrodes for Real-Time Electronic Sensing Cell Proliferation
Journal of Research (NIST JRES)
Geraldine I. Mijares, Darwin R Reyes-Hernandez, Jon C Geist, Michael Gaitan
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 ...
14. Quantum Dot FRET-Based Probes in Thin Films Grown in Microfluidic Channels
Georgeta Crivat, Sandra Maria Da Silva, Darwin R Reyes-Hernandez, Laurie E Locascio, Michael Gaitan, Nitsa Rosenzweig, Zeev Rosenzweig
15. Electrical Manipulation of Gold Nanoparticles for Microfluidic Applications
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 go ...
16. Microfluidic DNA Analysis Systems for Forensic Applications
Special Publication (NIST SP)
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
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 ...
17. Fast and High Efficient Microfluidic PCR By Microwave Dielectric Heating
Pierre-Alain Auroux, Darwin R Reyes-Hernandez, Jayna J Shah, Michael Gaitan
We report 100% yield and 40% reaction-time reduction for on-chip DNA amplification using microwave dielectric heating. A passivation protocol has also been developed to suppress the inhibition of PCR in PMMA chips used with a temperature sensor. We f ...
18. Microwave Dielectric Heating of Fluids in an Integrated Microfluidic Device
Jayna J Shah, Siddarth Sundaresan, Jon C Geist, Darwin R Reyes-Hernandez, James C Booth, Rao Mulpuri, Michael Gaitan
Rapid, selective, and uniform heating of sub-microliter size fluid volumes is vital for micro total analysis system (?gTAS) applications. In this work, we present an approach to localized and selective heating of fluids in a microfluidic network. Thi ...
19. Photopatterned Polyelectrolyte Multilayers for Cell Culture
Darwin R Reyes-Hernandez, J. Brian Hutchison, Laurie E Locascio, Michael Gaitan
Patterned two-dimensional cell cultures are increasingly important for constructing bioanalytical tools for cell and molecular biology to address questions about interactions, signaling, migration, and differentiation, among others. This contribution ...
20. Cellular Immobilization within Microfluidic Microenvironments: Dielectophoresis with Polyelectrolyte Multilayers
Samuel P. Forrey, Darwin R Reyes-Hernandez, Michael Gaitan, Laurie E Locascio