Figure 6. Formulation and Rheology of the Antimicrobial
and Temperature-Responsive Hydrogel Delivery System . A)Formulation of the hydrogels. AgNPs-PVP was introduced to an 18%(w/v)
aqueous solution of P407 to the final concentrations of 50 µM, 100 µM,
and 200 µM respectively. The formulations were thereinafter referred to
as XµM[AgNPs-PVP]-18%[P407], where X indicates the
concentration of Ag. B-E) Linear oscillatory shear rheology of
the formulations containing 18%[P407] (B ),
50µM[AgNPs-PVP]-18%[P407] (C ),
100µM[AgNPs-PVP]-18%[P407] (D ), and
200µM[AgNPs-PVP]-18%[P407] (E ), with dashed lines
highlighting the storage modulus G\({}^{\prime}\) and loss modulus G” at 37ºC .F) Summary of gelation temperatures and values of G\({}^{\prime}\) and G”
at 37ºC, for the four aforementioned formulations. Data are mean ± SD. n
= 3 for each group.