Filipe Ferreira da Silva

Research Areas

The main research interest in focused on low energy electron interactions with isolated gas phase targets. Dissociative electron attachment and electron ionisation processes are deeply explored in a large variety of target molecules, from biologically relevance to nanotechnology applications. These studies have been performed over the last years in close collaboration with University of Innsbruck, Austria, University of Siedlce, Poland and University of Iceland. Electron transfer processes upon atom molecule collisions has cached as well my interest. The negative and positive ion formation in electron interactions and electron transfer are probed by mass spectrometry. Electronic excited states of different species investigated by electron energy loss spectroscopy and VUV spectroscopy, is also another focus of my research. Special emphasis has been given to atmospheric related molecules as well as species that can act as tissue equivalent material. These studies are conducted in close collaboration with Aarhus Synchrotron Facility, Denmark, CSIC, Spain, Federal University of Paraná, Brazil.

Main publications

Key publications on spectroscopic techniques such as electron energy loss spectroscopy [2], mass spectrometric techniques [1,3-5], biological approach within fundamental processes in electron and neutral atom collisions [1,3,4], and cover of PCCP journal [6]

[1] - G. Meneses, C. Widmann, T. Cunha, F. Ferreira da Silva*, A. Gil, M. Calhorda, P. Limao-Vieira; "Unravelling Dissociation Pathways of Acetic Acid upon Electron Transfer in Potassium Collisions:Experimental and Theoretical Studies"; Phys. Chem. Chem. Phys. 19, (2017), 1083-1088

[2] - D. Pastega, E. Lange, J. Ameixa, A. S. Barbosa, F. Blanco, G. García, M. H. F. Bettega, P. Limão-Vieira and F. Ferreira da Silva; "Combined experimental and theoretical study on the differential elastic scattering cross sections for acetone by electron impact energy of 7.0 – 50 eV"; Physical Review A, 93, (2016), 032708

[3] - M. Neustetter, J. Aysina, F. Ferreira da Silva* and S. Denifl; "The effect of solvation in electron attachment to pure and hydrated pyrimidine clusters"; Angewandte Chem. Int. Ed, 54, (2015), 9124-9126

[4] - F. Ferreira da Silva, C Matias, D. Almeida, G. Garcia, O. Ingolfsson, H. D. Flosadottir, B. Omarsson, S. Ptasinska, B. Puschnigg, P. Scheier, P. Limao-Vieira and S. Denifl; "NCO, a key fragment upon dissociative electron attachment and electron transfer to pyrimidine bases: site selectivity for a slow decay process"; J Am Soc Mass Spectr, 24, (2013), 1787-1797 IF: 2.945

[5] - D. Almeida, F. Ferreira da Silva, G. Garcia and P. Limao-Vieira; "Selective bond cleavage in potassium collisions with pyrimidine bases of DNA"; Phys. Rev. Lett., 110, (2013), 023201 IF: 7.512

[6] - F. Ferreira da Silva, P. Bartl, S. Denifl, O. Echt, T. D. Maerk, and P. Scheier; "Argon clusters embedded in helium nanodroplets"; Phys. Chem. Chem. Phys, 42, (2009) 9791-9797

Websites

• http://docentes.fct.unl.pt/fr-silva/