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. Author manuscript; available in PMC: 2016 Dec 2.
Published in final edited form as: Polymer (Guildf). 2015 Dec 2;80:171–179. doi: 10.1016/j.polymer.2015.10.048

Fig. 2.

Fig. 2

FTIR spectra of the pH sensitive liposome, PLGA NP, and LPpH hybrid NP. A unique peak belonging to liposome at 2852 nm is shown in LPpH hybrid NP. Similarly, a peak at 3297 nm, which only occurs with PLGA NPs, is also shown in hybrid NPs.