Modification of cellulose based membranes by γ-radiation: Effect of cellulose content

Effect of electron beam irradiation on bacterial cellulose membranes used as transdermal drug delivery systems

“…Strobin et al [20] reported that only a slight decrease of cellulose polidispersity was observed under c-irradiation. Our results are in accordance with those reported by Lara et al, who reported a reduction of a salt permeability in membranes with a great cellulose content [21]. It is possible that membrane shrinkage can occur under gamma irradiation and this phenomenon can reduce membrane permeability as we observed in our experiments.…”

Effects of gamma irradiation on bio-chemical and physico-chemical parameters of fresh-cut red beet (Beta vulgaris L. var. conditiva) root

“…De Lara et al (2006) determined that structural/morphological changes such as cross-linking of polymer chains, seemed to justify the effect of c-irradiation on cellulose membrane permeability to electrolytes like NaCl. The uronic acid content of AIRs as well as the high degree of pectin acetylation (DA % 73%), typical of beet root (Dongowsky, 2001), did not change after irradiation, but the high degree of methylation (DM) increased significantly (p 6 0.05) for 1 kGy-cell wall pectins (Table 5).…”