This is a past event.

Rodrigo Amorim from Universidade Federal Fluminense will present at this week's Physics Colloquium.

Amorim's presentation is titled "Solid-state nanopore for biological sensing."

The seminar will be presented in person at 4 p.m. on Tuesday (Aug. 27) in Fisher 129.

ABSTRACT:

Solid-state nanopores have opened up a new, less expensive path for fast biomolecules sequencing, where the goal is using two-dimensional materials to achieve a single molecule resolution. We shall demonstrate two distinct sensing mechanisms using graphyne and line defect graphene. The first is detecting mutations in amino acids by use of ionic conductivity. Classical molecular dynamics is used for this purpose. In the second part of the talk, we will turn to the second mechanism, which is based on electronic conductance to distinguish between each nucleobase. We combined the QM/MM approach with non-equilibrium Green's functions and density function theory for that.

BIO:

Rodrigo Garcia Amorim was born in Brazil and is currently a professor at the Universidade Federal Fluminense. He received his bachelor's degree from the Universidade Federal Rio de Janeiro, master's from the Universidade Federal de São Carlos, and PhD from the University of São Paulo. He also did four postdocs, two in Brazil (Universidade Federal of ABC and Instituto Tecnológico de Aeronautica) and two abroad (MTU (USA) and Uppsala University (Sweden)). Furthermore, he works in condensed matter physics with an emphasis on first-principles calculations using density functional theory, classical molecular dynamics, and qm/mm methods.