Effects of reaction pH on self-crosslinked chitosan-carrageenan polyelectrolyte complex gels and sponges
نویسندگان
چکیده
منابع مشابه
Effect of complexation conditions on xanthan–chitosan polyelectrolyte complex gels
Polyelectrolyte hydrogels formed by xanthan gum and chitosan can be used for encapsulation and controlled release of food ingredients, cells, enzymes, and therapeutic agents. In this study, xanthan–chitosan microcapsules were formed by complex coacervation. The effects of initial polymer concentration and chitosan solution pH on the crosslinking density of xanthan–chitosan network were investig...
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BACKGROUND Lactobacillus acidophilus has become increasingly popular because of their beneficial effects on health of their host, and are called proboscis. In order to exert beneficial effects for probiotics, they must be able to tolerate the acidic conditions of the stomach environment and the bile in the small intestine. Microencapsulated form has received reasonable attention, since it can p...
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We investigate the effects of salt concentration and pH on neutralized poly(acrylic acid) (PAA) gels in near physiological salt solutions. Either adding calcium ions or decreasing the pH are found to induce reversible volume transitions but the nature of these transitions seems to be different. For example, the osmotic pressure exhibits a simple power law dependence on the concentration as the ...
متن کاملFreeze-dried k-carrageenan/chitosan polyelectrolyte complex-based insert: a novel intranasal delivery system for sumatriptan succinate
Intranasal route, ensuring suitable bioavailability of medicines under circumvention of the gastrointestinal degradation and hepatic first-pass elimination, has been a popular choice for drug delivery. Among nasal dosage forms, mucoadhesive solid inserts have been shown to resist mucociliary clearance and provide a prolonged nasal residence time. Hence, the purpose of this study was the prepara...
متن کاملFreeze-dried k-carrageenan/chitosan polyelectrolyte complex-based insert: a novel intranasal delivery system for sumatriptan succinate
Intranasal route, ensuring suitable bioavailability of medicines under circumvention of the gastrointestinal degradation and hepatic first-pass elimination, has been a popular choice for drug delivery. Among nasal dosage forms, mucoadhesive solid inserts have been shown to resist mucociliary clearance and provide a prolonged nasal residence time. Hence, the purpose of this study was the prepara...
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ژورنال
عنوان ژورنال: Journal of Physics: Materials
سال: 2018
ISSN: 2515-7639
DOI: 10.1088/2515-7639/aae9ab