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. Author manuscript; available in PMC: 2008 Sep 27.
Published in final edited form as: Nano Lett. 2006 Sep;6(9):1988–1992. doi: 10.1021/nl0611586

Figure 2.

Figure 2

(a) HPLC analysis of the MMP-2 catalyzed cleavage of the substrate BR4XPLGVRGE4; (b–d) Overlaid fluorescence and differential interference contrast (DIC) images of HT-1080 cells stained with the conjugate QD@BR4XPLGVRGE4 (b), QD@BR4XPLG (formed with MMP-2 cleaved BR4XPLGVRGE4) (c), and MMP-2 treated conjugate QD@BR4XPLGVRGE4 (d), respectively. Display scale: 0–600.