Sonication-Based Improvement of the Physicochemical Properties of Guar Gum as a Potential Substrate for Modified Drug Delivery Systems
Figure 5
Mechanical spectra of GG samples, with (red symbols) and without borax (black symbols), sonicated (at %) for different periods of time. (a) Frequency sweep of GG and GG 1; (b) frequency sweep of GG and GG/b; (c) frequency sweep of GG/b and GG/b sonicated for 5 and 10 min; (c) comparison between the frequency sweep of GG and GG/b. ( = full symbols, = empty symbols; %, °C).