Fluorescence spectroscopy and spectral modeling as a tool for study of interaction of nanoparticles with biomacromolecules. Plant cell walls

Abstract

Quantum dots (QDs) are increassinglz applied in plant science, as a markers or the cells or their cell walls. We sudied interaction of CdSe quantum dots (QDs) with cell walls isolated from a conifer- Picea omorika (Panč) Purkyne branch. Fluorescence and FTIR spectroscopz and epifluorescence microscopz have been performed in order to study interaction of the QDs with the whole cell wall, as well as with its individual constituent polzmers. The results shows that in the cell walls,CdSe quantum dots predominantlz binds to cellulose, through OH groups and to lignin, through the conjugated C=C /C-C chain