Publications by Rodrigo Martinez Duarte

Dielectrophoresis-based purification of antibiotic-treated bacterial subpopulations

Philippe Renaud, John McKinney, Neeraj Dhar, Meltem Elitas, Rodrigo Martinez Duarte

Persistence of bacteria during antibiotic therapy is a widespread phenomenon, of particular importance in refractory mycobacterial infections such as leprosy and tuberculosis. Persistence is characterized by the phenotypic tolerance of a subpopulation of b ...

Royal Soc Chemistry2014

Biomimetic Pieris rapae’s Nanostructure and Its Use as a Simple Sucrose Sensor

Philippe Renaud, David Vincent Bonzon, Rodrigo Martinez Duarte

iomimetics often provides efficient ways to create a product incorporating novel properties. Here we present the replication of the Pieris rapae butterfly optical structure. This butterfly has white wings with black spots. The white coloration is produced ...

MDPI2014

Dielectrophoresis of lambda-DNA using 3D carbon electrodes

Philippe Renaud, Rodrigo Martinez Duarte

Carbon electrodes have recently been introduced as an alternative to metal electrodes and insulator structures for dielectrophoretic applications. Here, an experimental and theoretical study employing an array of 3D carbon electrodes contained in a microfl ...

Wiley-Blackwell2013

Increasing PCR sensitivity by removal of polymerase inhibitors in environmental samples by using dielectrophoresis

Philippe Renaud, Rodrigo Martinez Duarte

Dielectrophoresis (DEP) is a powerful tool to manipulate cells and molecules in microfluidic chips. However, few practical applications using DEP exist. An immediate practical application of a carbon- electrode DEP system, in removing PCR inhibitors from a ...

Elsevier2013

Very High Throughput Electrical Cell Lysis and Extraction of Intracellular Compounds Using 3D Carbon Electrodes in Lab-on-a-Chip Devices

Philippe Renaud, Freddy Radtke, Rajwinder Lehal, Rodrigo Martinez Duarte

Here we present an electrical lysis throughput of 600 microliters per minute at high cell density (108 yeast cells per ml) with 90% efficiency, thus improving the current common throughput of one microliter per minute. We also demonstrate the extraction of ...

2012

A novel approach to dielectrophoresis using carbon electrodes

Philippe Renaud, Rodrigo Martinez Duarte

Carbon-electrode dielectrophoresis (carbon-DEP) is demonstrated here as an alternative to more traditional DEP techniques. Carbon-DEP combines advantages of metal-electrode and insulator-based DEP by using low-cost fabrication techniques and low voltages f ...

Wiley-Blackwell2011