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The research is devoted to the investigating of the possibility of using colloidal quantum dots, covered by various layers and nanoparticles of chitosan labelled with indocyanin green for fluorescence imaging in vitro and in vivo. Pure quantum dots and dots in the shell synthesized from 3-aminopropyltriethoxysilane and in the shell of albumin were investigated. Research using fluorescence Visualizer IVIS Lumina LT Series III (Perkin Elmer, USA) was conducted. The possibility of using quantum dots for in vitro diagnostics, and chitosan nanoparticles - in vitro and in vivo was presented.