Today, Martin Diego Bordenave defended his PhD thesis "Mediciones con resolución nanométrica mediante depleción por emisión estimulada" at the Physics Department of the Faculty of Exact and Natural Sciences, University of Buenos Aires, obtaining the highest honors. In his thesis, Martín built and applied two STED nanoscopes: - firstly, he built a multicolor STED [...]
Es importante que la comunidad científica, y sus socios industriales, conozcan la evolución de la inversión pública en el sistema científico. Lamentablemente, el proyecto de ley de presupuesto enviado por el Poder Ejecutivo Nacional impone importantes recortes para el año próximo. Los invito a leer, comentar y ampliar estos estudio: 2016 - Magnitud y Consecuencias [...]
Although there are numerous ways reported to induce the growth of nanoparticles with light, very little is known about the role of polarization. Most of the experiments reported so far were done with nanoparticles in suspension, where only average information can be obtained and the role of the polarization of light is impossible to address. [...]
In order to obtain super-resolved images, STED nanoscopy uses a laser tuned at the red tail of the emission spectrum of the fluorophore to deplete the excited state by stimulated emission. Since the stimulated emission cross-section follows practically the same dependency with wavelength as the emission, this configuration involves very small cross-sections and therefore high [...]
We visited the production plant and R&D department of Wiener-lab in Rosario (Santa Fé, Argentina), as part of a series of meetings where we are evaluating a collaboration to develop a new platform for homogeneous biosensing. In the picture: Catalina von Bilderling (CIBION), Gustavo Capriotti (Wiener), Fernando D. Stefani (CIBION), Andrés Poeylaut (Wiener), Alberto [...]
CIBION hosted the first meeting of Young Researchers in Optics and Photophysics of Argentina sponsored by the Optical Society of America (OSA) through its Student Chapter. It was a day full of enthusiastic and interesting talks and discussions. Thank you Cecilia Zaza for the local organization.
Today, we spent all day discussing and brain-storming with our collaborators from the groups of Dr. Damián Refojo (IBIOBA-CONICET, Buenos Aires) and Dr. Alfredo Cáceres (INIMEC-CONICET, Córdoba) We discussed the advances made in our collaborative projects and planned new experiments. In the picture: Raquel Becerra (Ph.D. candidate, Refojo´s group), Catalina von Bilderling (postdoc, Stefani´s group), [...]
Using optical forces it is possible to "print" colloidal metallic nanoparticles on specific locations of a substrate, directly from the suspension. In this way, it is possible to fabricate arrays of nanoparticles of arbitrary geometry. See for example the map of Argentina made of individual gold nanoparticles of 60 nm in diameter. Of course, it [...]
Today, Santiago Cerrotta obtained his degree on Physics with the highest honors, defending his undergraduate thesis on automated optical printing of gold and silver nanoparticles. Congratulations Santi!
Prof. Dr. Philip Tinnefeld from the Technical University of Braunschweig (Germany) will spend 3 months with us as a visiting researcher of CONICET. Philip is a friend and one of our closest collaborators. He just arrived for the Physics Department bbq. Welcome, Philip!