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New hydrazonoindolin-2-ones: Synthesis, exploration of the possible anti-proliferative mechanism of action and encapsulation into PLGA microspheres

Fig 9

FT-IR spectrum of a) PLGA, b) Pure 7e, c) Physical mixture of the PLGA + 7e, d) Plain microspheres, and e) 7e-loaded microspheres.

doi: https://doi.org/10.1371/journal.pone.0181241.g009