Photonics Seminar: Francesco De Angelis
- 3D plasmonic nanostructures for biology and medicine
- Francesco De Angelis, Istituto Italiano di Tecnologia, Genoa
- In this talk we will show our last achievements and future perspectives of distinct class of plasmonic devices devoted to biological and medical applications. Among them, we will introduce the concept of meta-electrodes, namely a nanostructured surface that can work as electrode, a broad band plasmonic antenna, and optimal cellular interface (see Figure 1). We show that meta-electrodes combined with commercial CMOS technology enable high quality intracellular electrical signals on the large network scale of human neuron and cardiomyocytes. The developed platform may enable significant advances in the investigation of the neuronal code, development of artificial retinas and low-cost in-vitro platforms for pharmacological screening of drugs [1-4]. Also, we will present an artificial hyperbolic meta-particle that enables a tailoring of both ohmic and radiative channel in the visible and near-infrared spectral ranges. We show that the radiative channel can be completely decoupled from the ohmic one thus enabling to create a system that is almost purely radiative or absorptive. Many interesting applications can be foreseen including thermal emission manipulation, photoacoustic imaging, controlled drug delivery and hyperthermia. Finally we will give a short overview on fractal nano-porous gold as emerging class of plasmonic metamaterial. We will show some interesting perspectives for controlling plasmon-phonon coupling and for achieving next generation of SPR sensors with outstanding sensitivity.
-  Dipalo et al, Plasmonic Meta-Electrodes allow intracellular recordings at network level on high density CMOS-multi-electrode arrays. Nature Nanotechnology, just accepted.
-  Dipalo et al, Intracellular and extracellular recording of spontaneous action potentials in mammalian neurons and cardiac cells with 3D plasmonic nanoelectrodes. Nano Letters 17 (6), 3932-3939.
-  Dipalo et al., Cells adhering to 3D vertical nanostructures: cell membrane reshaping without stable internalization. Nano Letters, just accepted.
-  Zilio et al., Hot electrons in water. LSA 2017.
- Bio: Dr. Francesco De Angelis is senior researcher at Istituto Italiano di Tecnologia where he leads the Plasmon Nanotechnology Unit. The main goal of its research activity is to exploit advanced nanofabrication techniques for controlling the properties of materials at the nanoscales. He is also coordinator of the PROSEQO project (FET Open 2016-2019, grant agreement 687089) that is devoted to next-generation optical methods for DNA and protein sequencing. Dr. De Angelis published more than 150 papers in peer-review impacted journals; total impact factor > 1000; citations> 6000, H index = 40.
October 15, 2018
11:00 AM — 12:00 PM
Advanced Science Research Center, GC/CUNY
85 St. Nicholas Terrace