Institute of Microelectronics of Barcelona IMB-CNM   

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Micro and Nanotechnology research for you

Las Científicas Cuentan, September-October 2018

Be ready for this exciting project #LasCientíficasCuentan with the participation of two IMB-CNM researchers, Neus Sabaté. More details very soon! European Research Council CSIC Catalunya F E C Y T · Ciencia e Innovación ·

More information click here.

IMB-CNM talks: ARRAYS OF PLASMONIC NANOSTRUCTURES WITH HIGH ABSORPTION AND EXTENDED TIME RESPONSE - Ana Conde Rubio

Sala de Actos Pepe Millán, IMB-CNM, Campus UAB.
07/09/2018 11:30 a.m.

Abstract: In this talk, I will show the fabrication, simulation and optical characterization of three hexagonal lattices of Au nanoelements with high absorption and a slow dynamic response. These systems were fabricated by Electron Beam Lithography (EBL) with small gaps between neighboring elements to exploit near-field coupling. Besides, a metal-insulator-metal configuration was used to enhance absorption of light. Both the simulations and the experimental results demonstrate that these systems behave as perfect absorbers in the visible and/or the near infrared. Besides, the numerical study of the time evolution shows a relatively extended time response over which the systems fluctuates between localized and collective modes. It is of particular interest the echoed excitation of surface lattice resonance modes, which are still present at long times as a consequence of the geometric frustration induced by the geometry of these systems. Hence, these structures could be of interest for enhanced spectroscopies such as Raman photoluminescence or other applications related to light absorption. As a matter of fact, preliminary results have proved their usefulness as substrates for Surface Enhanced Raman Spectroscopy (SERS).

IMB-CNM talks: Detección de radiación basada en sensores de imagen CMOS comerciales - Martín Pérez

Sala de Actos Pepe Millán, IMB-CNM, Campus UAB.
13/07/2018 11:30 a.m.

Abstract: Martín Pérez, del Centro Atómico Bariloche (Argentina) presentará el Centro Atómico Bariloche y describirá brevemente las instalaciones que utilizan habitualmente para realizar irradiaciones. En segundo lugar, describirá un método para la detección de neutrones térmicos basado en sensores de imagen CMOS comerciales y capas de conversión de gadolinio. Por último, hablará del daño originado por neutrones térmicos en sensores de imagen CMOS y de un método para realizar neutrografías mediante la activación de láminas de indio.

IMB-CNM talks: Three-dimensional interdigitated electrode arrays (3D-IDEA) for label-free detection of bacteria - Sergi Brosel

Sala de Actos Pepe Millán, IMB-CNM, Campus UAB.
08/06/2018 11:30 a.m.

Abstract: The use of impedimetric transducers based on interdigitated electrode arrays (IDEA) have been widely employed for different biosensing applications in the last years. A new transducer design with the presence of insulating barriers between electrode digits, named a three-dimensional interdigitated electrode array (3D-IDEA), shows considerable improvement in sensitivity compared with standard planar IDEA sensors. The functional mechanism of the device is based on registration of changes in conductivity at the surface of the barrier provoked by electrical charge redistribution caused by surface chemical reactions. The potential use of the developed device as a sensor transducer to detect various chemical and biochemical reactions has been previously demonstrated.
The presentation will be focused on how the surface modification of the 3D-IDEA impedance-based sensor with the immobilization of different biorecognition molecules (lectins, aptamers and peptides) allows to develop sensitive and label-free detection of different bacterial strains, as well as bacterial contaminants like endotoxins.

IMB-CNM talks: Alternative materials for bio-sensing: silk fibroin from Bombyx mori - Augusto Márquez

Sala de Actos Pepe Millán, IMB-CNM, Campus UAB.
11/05/2018 11:30 a.m.

Abstract: The field of commercial point of care (POC) tests for glucose monitoring in blood is widely covered with the glucose test strips for electrochemical measuring. Colorimetric analysis in this case is poor developed, while in other preliminary tests (pH, pregnancy, lead acetate) is commonly used. This aspect is logic as blood has a strong red color due to the presence of hemoglobin, what suppose an important interference. To prevent this drawback, cellulose is commonly employed to filter the sample, but also to manage the fluidics and retain the interactive elements (i.e. lateral flow tests). In this talk, I will present silk fibroin as an alternative to cellulose. This material covers in great part paper functionalities like capillary pumping and filtering but also and present others: i) mechanical properties: possibility to develop thin film biosensors resistant to mechanical stress, ii) biocompatibility: possibility to encapsulate biomolecules without disturbing their activity and also to be implanted in patients, iii) enzyme activity sustainer: the crystalline structure may isolate the immobilized biomolecules from harmful agents, iv) waveguide: besides acting as a biocompatible matrix, the silk fibroin can guide the light in a biosensor, being transparent in the visible and iv) compatibility with micro and nanofabrication technology (stamping, e-beam).

FEYNMAN UAB TALKS | Campus UAB, May-June 2018

Sala d’Actes Facultat de Ciències UAB
Wednesday, 9 May 2018, 12 pm

This year 2018 we celebrate the centenary of Richard P. Feynman, one of the greatests scientists of the XX century. The Campus UAB will host a cycle of Feynman Talks in different research centers. The first one, by Prof. David Kaiser, from MIT, will be at the Faculty of Science of UAB (Sala d'actes) on Wednesday, 9 May, 2018 at 12 pm.

The rest of the talks will be the following (see program here)

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