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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Biomaterials. 2013 Jul 14;34(31):7733–7743. doi: 10.1016/j.biomaterials.2013.06.047

Fig 1.

Fig 1

MALDI-TOF mass spectrum of the Insulin-PEG-MAL conjugate being treated with DTT and trypsin. For experimental details, please refer to the “Materials and Methods” section.