نتایج جستجو برای: ionotropic gelation
تعداد نتایج: 6400 فیلتر نتایج به سال:
This work concerns the fabrication of a green, novel, and sustainable system for efficient removal methylene blue from aqueous solutions. The proposed is obtained by using sodium alginate/soybean extract blend reinforced with hemp hurd agro-waste resources halloysite nanotubes (HNTs). ionotropic gelation methodology, calcium chloride as crosslinking agent, was easily applied to obtain composite...
Objective: The objective of this study was to formulate an oral sustained release delivery system of ezetimibe mucoadhesive beads by ionic gelation technique based on sodium alginate used as a hydrophilic carrier in combination with carbopol 934P which acts as a rate modifier. Methods: Microbeads of ezetimibe were prepared using an easy method of ionotropic gelation by little modification while...
Interpenetrating network (IPN) beads of sodium carboxymethyl xanthan (SCMX) and sodium alginate (SAL) were prepared by ionotropic gelation process using AlCl3 as a cross-linking agent. The effect of different formulation variables like total polymer concentration, gelation time, concentration of cross-linking agent, and drug load on the extent of release of ibuprofen (IBP), a non steroidal anti...
Bioactive agents (catalase - an enzyme, and nisin - a bacteriocin) were covalently immobilized on alginate activated with sodium periodate (oxidatively converting 2,3-dihydroxy groups into dialdehyde residues), followed or preceded by ionotropic gelation. For the same protein coupling yield, the retained enzyme activity of the immobilized enzyme (ImE) can be markedly increased by diminishing th...
Alginate microspheres containing furosemide were prepared by the ionotropic external gelation technique using Ca2+, Al3+ and Ba2+ ions. The incorporation efficiency of the prepared microspheres ranged between 65% and 93%. The effect of sodium alginate concentration, cross-linking ions and drying conditions was evaluated with respect to entrapment efficiency, particle size, surface characteristi...
Cisplatin, a platinum compound, exerts its cytotoxic effects by coordinating to DNA where it inhibits both replication and transcription, and induces programmed cell death. It is used in the treatment of non-small cell lung cancer. In the present study, an attempt was made to achieve better treatment of lung cancer by direct lung delivery of cisplatin microparticulate systems, which helps to lo...
Diclofenac sodium is an Non-steroidal anti-inflammatory drugs, having an elimination half-life of 1-2 hrs. The objective of the study is to prepare Diclofenac sodium Microbeaads using Natural Polymers in different concentrations. For this purpose calcium ions were used as cross linking agents in formulation of alginate-guar gumpectin, alginate-guar gum-lecithin and alginate-pectin-lecithin Micr...
The purpose of this research was to develop and evaluate multiparticulates of alginate and chitosan hydrogel beads exploiting pH sensitive property for colon-targeted delivery of theophylline. Alginate and chitosan beads were prepared by ionotropic gelation method followed by enteric coating with Eudragit S100. All formulations were evaluated for particle size, encapsulation efficiency, swellab...
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