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Cytochemical staining of normal fibroblast cells hFF8 using the conjugates of 2’-F-RNA aptamer GL44 or scrambled 2′-F-RNA fscr with closo-dodecaborate. DAPI-stained nuclei, blue signal, Sulfo-Cy5-labeled 2’-F-RNA conjugates, red signal, CellTracker ™ green CMFDA, green signal.
