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. 2014 Mar 31;9:1665–1676. doi: 10.2147/IJN.S59463

Figure 9.

Figure 9

(A) Original microscopic image and (BE) fluorescence images of mouse skin after a 2-hour diffusion of (B) free FITC-rhEGF, (C) FITC-rhEGF liposomes before drying, and FITC-rhEGF liposomal dry powders prepared with (D) USFD and (E) lyophilization.

Abbreviations: FITC, fluorescein isothiocyanate; rhEGF, recombinant human epithelial growth factor; USFD, ultrasonic spray freeze-drying.