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. 2020 May 27;15:3669–3680. doi: 10.2147/IJN.S249174

Figure 2.

Figure 2

Characterization of HPC hydrogels. (A) The cross-sectional SEM micrographs of the hydrogels. (B) Cumulative release of IFN-α2b from the hydrogels over a period of 120 hours in vitro.

Abbreviations: HPC, hydroxypropyl cellulose; SEM, scanning electron microscope; IFN, interferon.