Fig. 1
From: Stem cell membrane-coated isotretinoin for acne treatment
Characterization of STCM-ATRA-NPs. a Morphology of stem cell membrane by TEM. b Morphology of STCM-ATRA-NPs, c freshly prepared STCM-ATRA-NPs, d STCM-ATRA-NPs in PBS, e stem cell membrane in PBS, and f isotretinoin in PBS. g Size of STCM-ATRA-NPs measured by DLS and h ATRA and i STCM-ATRA-NPs measured by ultra violet spectrum. j Morphology of oscillator-generated STCM-ATRA-NPs by TEM. k Morphology of oscillator-generated STCM-ATRA-NPs by microscope. l Morphology of oscillator-generated STCM-ATRA-NPs by fluorescence microscopy under blue fluorescence and m under ultraviolet