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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: RSC Adv. 2014 Oct 31;4(102):58762–58768. doi: 10.1039/C4RA11225C

Figure 4. Chemical conjugation of cRGDyK with ZW800-1A and ZW800-1C.

Figure 4

(a) Conjugation schemes of cRGD-ZW800-1A and cRGD-ZW800-1C and possible byproducts. (b) Photostability of ZW800-1A and ZW800-1C conjugates in 100% serum for 4 h and 24 h. (c) HPLC-MS analysis of cRGD-ZW800-1A and cRGD-ZW800-1C after 24 h incubation in 100% FBS supplemented with 50 mM HEPES, pH 7.4.