Home - Applied nanoPhysics Group

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

Prof. Stefan Maier receives the Luis Federico Leloir Award

nano_x7n4r02024-08-18T16:42:09+00:00October 19th, 2023|

Congratulations to Prof. Stefan Maier, on being awarded the prestigious Leloir Prize 2023 in the the natural sciences category from Argentina’s Ministry of Science, Technology and Innovation. Prof. Maier is the head of the School of Physics and Astronomy at Monash University, Australia, while he also holds the Lee-Lucas Chair [...]

Night of the Museums 2023

nano_x7n4r02024-08-17T21:13:19+00:00September 24th, 2023|

This year CIBION participated in the Nights of the Museums of the City of Buenos Aires together with the Intitute of Biomedicine of Buenos Aires (IBIOBA) and the Center for Simluations and Calculations (CSC). Our group made exciting demonstrations of optics and fluorescence to hundreds of people that visited [...]

Annual Meeting of the Argentina Association of Physics (RAFA 2023) – Premio J. J. Giambiagi a Luciano Masullo

nano_x7n4r02024-08-18T11:06:29+00:00September 23rd, 2023|

Several members of the group attended the Annual Meeting of the Argentina Association of Physics in Bahía Blanca to enjoy wonderful scientific discussions and accompany Dr. Luciano Masullo in his presentation on the ocassion of the Juan José Giambiagi Award to the best doctoral thesis in experimental Physics of [...]

Prof. Stefani receives the Konex award – 100 renowned argentine scientists of the last decade

nano_x7n4r02024-08-18T17:02:43+00:00September 12th, 2023|

The director of CIBION, Fernando Stefani, received a Konex Merit Award for being one of the 100 most outstanding scientific personalities of the last decade (2013-2022) in Argentina. This award has been given by the Konex Foundation since 1980, on differente categories. This year, the award was for those [...]

Destacan nuestra investigación en calentamiento fototérmico de nanopartículas

nano_x7n4r02023-08-28T18:18:26+00:00August 25th, 2023|

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 [...]

Alan is back!

nano_x7n4r02024-08-18T16:31:39+00:00July 1st, 2023|

Dr. Alan Szalai returns to our group after a succesful stay in the group of our collaborator Prof. Philip Tinnefeld Alan joins now as assistant researcher to start his career at CONICET. We are so happy to have Alan back with us. Undoubtedly, [...]

Anti-stokes thermometry of single Au/Pd nanoparticles

nano_x7n4r02023-08-28T13:51:11+00:00June 24th, 2023|

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 [...]

Tracking nanoscopic motion with minima of light

nano_x7n4r02023-08-25T18:40:15+00:00June 16th, 2023|

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 [...]