caa a22 4500 445372281 CHVBK 20180317142951.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00340-011-4459-6 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4459-6 Diffusivity in water and fluorescence properties oforganic nanoparticles produced inflames [Elektronische Daten] [A. Bruno, C. de Lisio, M. Iuorio, P. Minutolo] Rotational and translational diffusion properties in water of nano organic carbon (NOC) particles collected from premixed laminar ethylene/air flames have been investigated using both time resolved fluorescence polarisation anisotropy (TRFPA) and fluorescence correlation spectroscopy (FCS). Insight into the NOC sizes, structures and rigidity has been gained through diffusion properties exploiting their fluorescence in different spectral ranges. The TRFPA measurements revealed the presence of two classes of particles. The first composed of particles with a mean size of 1.5nm which absorb and fluoresce in the UV, and a second class composed of slightly larger particles, about 2.2nm, which absorb and fluoresce in the visible and were also detected by FCS. From FCS measurements particle concentration and fluorescence quantum yield have been evaluated. Springer-Verlag, 2011 Bruno A. Dipartimento di Scienze Fisiche, Università di Napoli Federico II, Complesso di Monte S. Angelo, Via Cintia, 80126, Napoli, Italy aut de Lisio C. CNR-SPIN, Unità di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, Complesso di Monte S. Angelo, Via Cintia, 80126, Napoli, Italy aut Iuorio M. Dipartimento di Ingegneria dei materiali e della produzione, Università di Napoli Federico II, P. le Tecchio, 80, 80126, Napoli, Italy aut Minutolo P. Istituto di ricerche per la combustione, CNR, P. le Tecchio, 80, 80126, Napoli, Italy aut Applied Physics B Springer-Verlag 102/4(2011-03-01), 711-715 0946-2171 102:4<711 2011 102 340 https://doi.org/10.1007/s00340-011-4459-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4459-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bruno A. Dipartimento di Scienze Fisiche, Università di Napoli Federico II, Complesso di Monte S. Angelo, Via Cintia, 80126, Napoli, Italy aut NATIONALLICENCE 700 1- de Lisio C. CNR-SPIN, Unità di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, Complesso di Monte S. Angelo, Via Cintia, 80126, Napoli, Italy aut NATIONALLICENCE 700 1- Iuorio M. Dipartimento di Ingegneria dei materiali e della produzione, Università di Napoli Federico II, P. le Tecchio, 80, 80126, Napoli, Italy aut NATIONALLICENCE 700 1- Minutolo P. Istituto di ricerche per la combustione, CNR, P. le Tecchio, 80, 80126, Napoli, Italy aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/4(2011-03-01), 711-715 0946-2171 102:4<711 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer