CONICET publicó una nota de divulgación destacando nuestra investigación sobre el calentamiento fototérmico de nanopartículas bimetálicas de oro y paladio. Este trabajo fue liderado por el Dr. Julián Gargiulo en nuestro grupo, y actualmente mudándose a la Universidad de San Martín, en colaboración con el grupo del Prof. Emiliano Cortés de la Universidad Ludwig-Maximilians [...]
Metallic nanoparticles can be used as nanoheaters; they are very efficient converters of light energy into heat. However, accurate measurement of the temperatures reached by a metallic nanoparticle under illumination remains an open challenge, creating difficulties in the interpretation of results across plasmonic applications. Particularly, there is a quest for understanding the role of temperature [...]
Many physical, chemical, and biological phenomena are determined by dynamical processes occurring at the nanoscale. Therefore, tracking (bio)molecules and nanoparticles with nanometric precision and high temporal resolution is a truly powerful discovery tool in various fields. When it comes to biology, tracking the motion and conformational changes of proteins lies at the core of deciphering [...]
Fluorescence Resonance Energy Transfer (FRET)-based approaches are unique tools for sensing the immediate surroundings and interactions of (bio)molecules. FRET imaging and Fluorescence Lifetime Imaging Microscopy (FLIM) enable the visualization of the spatial distribution of molecular interactions and functional states. However, conventional FLIM and FRET imaging provide average information over an ensemble of molecules within a diffraction-limited [...]
Since 1980, every 10 years, the Konex Foundation (https://www.fundacionkonex.org/) recognizes 100 remarkable personalities or institutions of Argentina for their work over one decade in different areas: Sports, Show Business, Visual Arts, Science and Technology, Literature, Popular Music, Humanities, Comunication, Journalism, Community and Institutions, Enterprises, and Classical Music. This year was the turn of Science [...]
Prof. Stefani was invited to the University of Fribourg to give lectures and supervise ongoing collaboration projects with Prof. Guillermo Acuna. In addition, Prof. Stefani gave a short course on Advanced Fluorescence Imaging for graduate and undergraduate students of the University of Fribourg and the University of Bern. The course was organized [...]
Prof. Stefan Hell invited Prof. Stefani to give a lecture at the Max Planck Institute for Multidisciplinary Sciences on the latest advances on super-resolution microscopy with sub-10 nm resolution. This was the first meeting in person after the COVID-19 pandemic with long term collaborators and mentors of Prof Stefani, Prof. Stefan Hell [...]
Prof. Stefani was invited by Prof. Joerg Enderlein to a give a coloquium at the University of Göttingen and discuss future collaborations with his group. He also maintained promissing disscussions with Prof. Silvio Rizzoli and group leader Dr. Felipe Opazo. Thank you Joerg for the great time!
Several super-resolution methods make use of toroidal foci, i.e. light foci with a central minimum, ideally a zero, of intensity. For example, STED microscopy uses toroidal foci to suppress fluorescence emission in the periphery of the excitation focus through stimulated emission. Also, interrogating molecular position using a minimum of intensity is the basis for the [...]
Prof. Stefani was invited to the ETH Zurich to give a lecture to graduate and undergraduate students, and visit the labs of world experts on nanophotonics Prof. Lukas Novotny and Prof. Romain Quidant. Thank you Romain and Lukas for the great time and discussions, as always.