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Center for Bionanoscience Research (CIBION), National Scientific and Technical Research Council (CONICET)
Physics Department, Faculty of Exact and Natural Sciences, University of Buenos Aires (UBA)

 Using optical methods, we explore the properties and technological applications of nanoparticles, single molecules, nanostructured materials, supramolecular assemblies, biological and hybrid nanosystems.

The Applied nanoPhysics Group was launched in October 2009 at the Physics Department, Faculty of Exact and Natural Sciences,  of the University of Buenos Aires (UBA)

In 2012 we moved our labs to the Center for Bionanoscience Research (CIBION) of the National Scientific and Technical Research Council (CONICET), while Prof. Stefani still holds his position at the Physics Department of the University of Buenos Aires.

CURRENT RESEARCH ACTIVITIES

Fluorescence nanoscopy.

Super-resolution fluorescence microscopy, also known as fluorescence nanoscopy, has revolutionized biological imaging because they provide deep sub-wavelenght spatial resolution while keeping the low-invasiveness of far-field optical interrogation. We apply and optimize well-established methods like STED and STORM, and develop new ones, such as MINFLUX, and open-source software for fluorescence nanoscopy. With them, we address questions of cellular and neuronal biology.

Optical printing colloidal nanoparticles.

Colloidal chemistry enables the fabrication of nanoparticles of different shapes, sizes and material compositions, that exhibit unique physical and chemical properties, inexistent in bulk materials. In order to make use of those properties in devices and circuits, it is necessary to develope methods to bring the colloidal nanoparticles from the liquid phase to specific locations of solid substrates. We address this challenge using optical forces.

Self-assembled Nanophotonic Devices.

Semiconductor-based devices are approaching intrinsic limits of speed and heat dissipation.
Optical devices are faster and practically loss-less, but their size miniaturization is limited by the wavelength of light. Nanophotonics and Plasmonics deals with the manipulation of light at the nanoscale. We investigate light-matter interaction between single-photon emitters and metallic nanoparticles organized in nanodevices by self-assembly.

LATESTS NEWS

    1st Training Workshop on Super-resolution Microscopy (FOMISUR)

    December 13th, 2024|

    Our lab leads the Federal Network for Super-resolution Microscopy (Red Federal de Microscopía de Super-Resolución) whose main objective is to disseminate super-resolution methods throughout Argentina, comprising hardware, software and "brainware", i.e. teaching and training. Within this program, we organized the first training workshop on super-resolution microscopy (Taller de Formación [...]

      Prof. Stefani is incorporated to the National Academy of Exact, Physical and Natural Sciences

      December 2nd, 2024|

      Prof. Fernando Stefani has been appointed as a Titular Member of the prestigious National Academy of Exact, Physical, and Natural Sciences (ANCEFN). This is a significant honor, as only 37 scholars across all disciplines hold this distinguished position. His inclusion highlights his outstanding contributions to research and innovation, further strengthening [...]

        Congratulations Dr. Sosa!

        November 30th, 2024|

        Santiago Sosa succesfully defended his Ph.D. thesis. Santi worked under the co-direction of Prof. Fernando Stefani and Prof. Fernando Goldbaum (Leloir Institute) on the engineering of the protein BLS for the fabrications of nanophotonic devices and for developing structural biology measurements based on fluorescence nanoscopy. Congratulations Santi! [...]

          Congratulations Dra. Martinez!

          November 22nd, 2024|

          Today, Luciana Martinez successfully defended her Ph.D. thesis on optical manipulation, nanothermometry and controlled photo-induced growth of metallic nanoparticles. Next, Luciana will move to University College London to join the group of Sabrina Simoncelli, together with Cecilia Zaza. Congratulations Lu! And good luck in London! [...]

            Night of the Museums 2024

            November 11th, 2024|

            This past Saturday was the Night of the Museums! An annual event organized by the City of Buenos Aires, the Night of the Museums invites everyone to explore the city’s cultural treasures, with museums open from 7:00 PM to midnight, featuring special exhibitions and activities. This year, CIBION participated at the Science [...]

              Latin Bioimaging Meeting in Rio de Janeiro

              August 24th, 2024|

              The Latin Bioimaging (LABI) Meeting in Rio Janeiro was a nice opportunity to meet and discuss with friends and collaborators. Florencia Choque, Alan Szalai, Luis Marcano, Gonzalo Escalante, Santiago Sosa and Fernando Stefani participated, along with collaborators Lía Pietrasanta, Alfredo Cáceres, Francisco Barrantes, Nicolás Unsain, Mariano Bisbal, Antonella Vila, [...]

                SAMIC 2024 – Tucumán

                May 31st, 2024|

                The Argentina Association of Microscopy (Asociación Argentina de Microscopía - SAMIC), established as non-profit organization in 1995 has been organizing a periodic meetings every two years, approximately, since 2009. This time, the SAMIC meeting was organized in Tucumán, and counted with the participation of numerous national and international colleagues. [...]

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                THE GROUP

                PROF. DR. FERNANDO D. STEFANI
                PROF. DR. FERNANDO D. STEFANIPrincipal Investigator
                DR. LUCÍA LÓPEZ
                DR. LUCÍA LÓPEZLab Manager
                Dr. ALAN SZALAI
                Dr. ALAN SZALAIAssistant Researcher
                Super-resolution fluorescence microscpy, Single-molecule biophysics
                DR. IANINA L. VIOLI
                DR. IANINA L. VIOLIAssistant Researcher (INS-UNSAM, CIBION)
                Synthesis, modification and optical manipulation of colloidal nanoprticles
                DR. JULIÁN GARGIULO
                DR. JULIÁN GARGIULOAssistant Researcher (INS-UNSAM, CIBION)
                Optical printing colloidal nanoparticles. Plasmon-assisted chemistry.
                LUCIANA MARTÍNEZ
                LUCIANA MARTÍNEZPh.D. candidate in Physics (University of Buenos Aires)
                Plasmon-assisted chemistry
                SANTIAGO SOSA
                SANTIAGO SOSAPh.D. candidate in Biological Chemistry (University of Buenos Aires)
                Nanofabrication by protein self-assembly
                GONZALO ESCALANTE
                GONZALO ESCALANTEPh.D. candidate in Physics (University of Buenos Aires)
                Super-resolution imaging of chromatin
                FLORENCIA CHOQUE
                FLORENCIA CHOQUEPh.D. candidate in Physics (University of Buenos Aires)
                pulsed interleaved MINFLUX
                FLORENCIA EDORNA
                FLORENCIA EDORNAPh.D. candidate in Physics (University of Buenos Aires)
                Single-molecule localization through sequential structured illumination
                GROUP PICTURES

                COLLABORATORS

                STEFAN HELL
                Max-Planck-Institute for Biophysical Chemistry (Göttingen, Germany)

                THOMAS JOVIN
                Max-Planck-Institute for Biophysical Chemistry (Göttingen, Germany)

                ALFREDO CÁCERES
                Instituto Universitario de Ciencias Biomédidas de Córdoba (Córdoba, Argentina)

                PHILIP TINNEFELD
                Ludwig-Maximilians-University Munich (Germany)

                GUILLERMO ACUNA
                University of Fribourg (Switzerland)

                STEFAN MAIER
                Ludwig-Maximilians-University Munich (Germany)

                ANDREA BRAGAS
                University of Buenos Aires (Argentina)

                JOCHEN FELDMANN
                Ludwig-Maximilians-University Munich (Germany)

                NIEK VAN HULST
                Institute of Photonic Sciences (Barcelona, Spain)

                EDUARDO CORONADO
                Universidad Nacional de Córdoba (Córdoba, Argentina)

                SABRINA SIMONCELLI
                University College London (UK)

                DAMIAN REFOJO
                Biomedicine Research Institute of Buenos Aires (Argentina)

                RODRIGO PALACIOS
                Universidad Nacional de Río Cuarto (Córdoba, Argentina)

                OSCAR CAMPETELLA
                Universidad Nacional de General San Martín (Buenos Aires, Argentina)

                OMAR AZZARONI
                Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (La Plata, Buenos Aires, Argentina)

                GALO SOLER ILLIA
                Universidad Nacional de General San Martín (Buenos Aires, Argentina)

                SPONSORS

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