The optical manipulation team of our lab was recognized with the Innovar Award 2017 for the method of automated optical printing of colloidal nanoparticles. Congratulations to Santiago Cerrotta, Germán Chiarelli, Cecilia Zaza, Ianina Violi! Of course, also to Julián Gargiulo, who is not in the photo because he is at Imperial College London. Our [...]
Optical printing is a wonderful tool to fabricate arrays of colloidal nanoparticles on solid substrates. However, when a nanoparticle absorbs light, it heats up and generates very large temperature gradients. In turn, those temperature gradients produce thermo-phoretic and thermo-osmotic forces that are strong enough to disturb the optical manipulation of nanoparticles at close separation distances. [...]
Optical printing is a wonderful tool to capture colloidal nanoparticles from suspension and place them on specific positions of a substrate. Still, the mechanistic details of the processes involved are complex and not fully understood. In our recent publication in ACS Nano, we provide new insight into the mechanism of optical printing colloidal nanoparticles and [...]
During the summer festival of the Max-Planck-Institute for Biophysical Chemistry, we had the chance to discuss with Stefan about the impact and future development of MINFLUX. Thank you Stefan for the constant support!
The Georg Forster Research Award is granted by the prestigious Alexander von Humboldt Foundation (AvH) in recognition of a researcher's entire achievements to date to academics of all disciplines whose fundamental discoveries, new theories, or insights have had a significant impact on their own discipline and beyond and who are expected to continue developing research-based solutions [...]
The conference Discussions on Nano and Mesoscopic Optics (DINAMO) aims to promote the transfer of knowledge between different branches of optical sciences and to stimulate global solutions to complex questions nano- and mesosopic optics. DINAMO is conceived to provide an interdisciplinary forum where leading scientists from around the world could present and discuss their latest [...]
Today, Julian Gargiulo defended his doctoral thesis "Optical printing of metallic nanoparticles" at the Physics Department of the Faculty of Exact and Natural Sciences, University of Buenos Aires, obtaining the highest honors. Colloidal chemistry provides an enormous variety of nanoparticles, with different shapes, sizes and material composition. These nanomaterials have unique physical and (bio)chemical properties [...]
Today, Federico Barabas defended his doctoral thesis "Nanoscopía de fluorescencia por localización estocástica de moléculas individuales" at the Physics Department of the Faculty of Exact and Natural Sciences, University of Buenos Aires, obtaining the highest honors. We highly appreciate the evaluation by the jury: Prof. Dr. Francisco Barrantes, Prof. Dr. Hernán Grecco, and Prof. Dr. [...]
Determining the position of single fluorescent molecules is the key concept for all coordinate-stochastic fluorescence nanoscopy methods, such as PALM or STORM, also known as single-molecule localization microscopy (SMLM). Applying these concepts to study nanophotonic devices and interactions between molecules and nanoparticles seems straightforward at first, but it is not! The electromagnetic coupling between the [...]
Fluorescence nanoscopy is revolutionizing biological imaging because it keeps all the advantages of fluorescence-based imaging (specificity, sensitivity, low-invasiveness) but provides a spatial resolution no longer limited by diffraction. Although theoretically, all these methods provide unlimited resolution, in practice they are limited by the photostability of fluorophores. The limited photon budget determines the achievable resolution. That [...]