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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Acta Biomater. 2009 May 4;5(8):2860–2871. doi: 10.1016/j.actbio.2009.04.012

Figure 2.

Figure 2

UV-vis spectra of the block copolymer PLGA-PLL before (solid line) and after deprotection (dashed line). At 257 nm, the protecting CBZ group can be visualized. Its presence indicates successful conjugation while its subsequent removal exposes amine functionalities.