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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Biomaterials. 2009 Jul 31;30(29):5649–5659. doi: 10.1016/j.biomaterials.2009.05.068

Fig. 7.

Fig. 7

MALDI-TOF (m/z) spectrum of purified labeled Cys-protected fully PEGylated 2-arm peptidic core. The peak showing molecular weight of 11,099.0 Da confirms attachments of two fluorescein-PEG5kDa to the 2-arm peptidic core.