We present here a new methodology for quantitative mapping of light elements in cells, based on combination of compositional and morphological information, derived respectively by X-ray Fluorescence Microscopy (XRFM), Atomic Force Microscopy and Scanning Transmission X-ray Microscopy (STXM). Since XRFM of light elements (carbon, nitrogen, oxygen, sodium and magnesium), are strongly influenced by self-absorption, we developed an algorithm to correct for this effect, using the morphological and structural information provided by AFM and STXM. Finally, the corrected distributions have been obtained, thus allowing quantitative mapping.
Malucelli, E., Iotti, S., Fratini, M., Marraccini, C., Notargiacomo, A., Gianoncelli, A., et al. (2013). X-ray fluorescence microscopy of light elements in cells: Self-absorption correction by integration of compositional and morphological measurements. JOURNAL OF PHYSICS. CONFERENCE SERIES, 463(1), 1-4 [10.1088/1742-6596/463/1/012022].
X-ray fluorescence microscopy of light elements in cells: Self-absorption correction by integration of compositional and morphological measurements
MALUCELLI, EMIL;IOTTI, STEFANO;MARRACCINI, CHIARA;FARRUGGIA, GIOVANNA;CAPPADONE, CONCETTINA;MEROLLE, LUCIA;
2013
Abstract
We present here a new methodology for quantitative mapping of light elements in cells, based on combination of compositional and morphological information, derived respectively by X-ray Fluorescence Microscopy (XRFM), Atomic Force Microscopy and Scanning Transmission X-ray Microscopy (STXM). Since XRFM of light elements (carbon, nitrogen, oxygen, sodium and magnesium), are strongly influenced by self-absorption, we developed an algorithm to correct for this effect, using the morphological and structural information provided by AFM and STXM. Finally, the corrected distributions have been obtained, thus allowing quantitative mapping.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
