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. Author manuscript; available in PMC: 2020 Feb 1.
Published in final edited form as: Biomaterials. 2018 Nov 13;192:271–281. doi: 10.1016/j.biomaterials.2018.11.015

Figure 2:

Figure 2:

Characterization of biotin-PLG polymer. (A) Conjugation of NH2-PEG2-biotin to PLG via carbodiimide chemistry, resulting in biotin-PLG. (B) 1H-NMR in (D3C)2SO of PLG (top), biotin linker (middle), and biotin-PLG (bottom).