Results of monitoring behavior of the Ch/IA/MAA alcogel exposed to scC[O.sub.2] are presented in Fig.
Volume and color changes due to transformation of the hydrogel to alcogel and further to XG and scG120M are shown in Fig.
Appearance of the: a) hydrogel, b) alcogel, c) gel scG120M, d) Xerogel.
The gels were prepared by free radical copolymerization of methacrylic and itaconic acid in the presence of chitosan  and were converted to the alcogels. The effect of drying method and scC[O.sub.2] drying conditions on the gels' morphology, crystallinity, mechanical properties, swelling behavior and impregnation with thymol was analysed to testify a potential use of these gels in topical applications.
Woignier, "Evolution of the acoustical properties of silica alcogels
during their formation," Ultrasonics, vol.
(2000) have produced 2 types of zirconia (Zr[(OH).sub.4]) supports; a) by a wet impregnation route and b) by an alcogel
Referring to her allegations regarding the Alcogel
, she said: "They said they had done it because she was screaming 'mum' and 'help', to make her shut up.
Scherer, "Autoclave treatment effect on silica alcogel texture," Journal of Non-Crystalline Solids, vol.
Lechatelut, "Fractal geometry of silica alcogels from thermoporometry experiments," Europhysics Letters, vol.
The Zn-Cu alcogels
were light blue in color as shown in Figure 1.