Fig. 5
From: Injectable PTHF-based thermogelling polyurethane implants for long-term intraocular application
In vitro performances of EPT5-1 T thermogel. Gel erosion and drug release properties of EPT5-1 T thermogels: A Wet mass of EPT5-1 T thermogels at 7 wt% and 10 wt% (n = 3). B Cumulative dry mass loss from the EPT5-1 T thermogels at 7 wt% and 10 wt% (n = 3). Optical transparency and in vitro cell viability: C Pictures of 7 wt% EPT5-1 T at 4 ℃, 37 ℃, and 60 ℃; D UV–vis spectra of the transmittance of 7 wt% EPT5-1 T (at 25℃, 37 ℃ and 60 ℃), water, and silicone oil (both at 25 ℃). E pH stability of EPT5-1 T at 4 ℃ and 37 ℃ (n = 3). F Cell viability result of ARPE-19 cells incubated with EPT5-1 T thermogels (n = 6)