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. Author manuscript; available in PMC: 2011 Apr 27.
Published in final edited form as: ACS Nano. 2010 Apr 27;4(4):2402–2410. doi: 10.1021/nn100190v

Figure 4.

Figure 4

Schematic of CTX and Cy5.5 conjugation to ION/PEG. (A) Thiolation of CTX with Traut's reagent. (B) Iodoacetate and Cy5.5 grafting to amine groups on the ION/PEG via NHS esters. (C) CTX and Cy5.5 conjugated ION/PEG.