The procedure followed for beads preparation was explained elsewhere [4] and [5], and briefly explains as follows NaAlg (2 w/v%) and NaCMC (2 w/v%) polymer solutions were prepared separately under constant stirring and then equal ratios of polymer solutions (25:25 ml) were homogenously mixed under overhead stringing up to 24 h. The blend polymer solution released through a 21 gauge syringe needle into 50 ml FeCl3 solution with moderate continuous stirring to obtain smooth and spherical hydrogel beads. The ferric chloride solution with hydrogel beads was allowed for stirring at ambient temperature for 30 min. The hydrogel beads were removed from ferric chloride solution and then washed with distilled water till the removal of unreacted crosslinking agent consequently lyophilized at −80 °C. Similar procedure was followed to prepare MH drug loaded hydrogel beads by adding MH drug to the polymer blends and allowed for stirring to form homogeneous MH loaded beads.
Six different formulations were synthesized by varying amount of NaCMC in NaCMC/NaAlg blend solutions, crosslinker concentration, and drug content. The placebo hydrogel beads thus prepared were formulated as CA-0. The formulations prepared by varying crosslinker concentration (1, 2, 3%) and (MHC – 100 mg and NaCMC – 2 w/v%) were designated as CA-1, CA-2 and CA-3 and also formulation (CA-4) was composed with different NaCMC content (3 w/v%), respectively. The formulations prepared with different concentrations of MH content (75, 50 mg) were designated as CA-5 and CA-6.
The procedure followed for beads preparation was explained elsewhere [4] and [5], and briefly explains as follows NaAlg (2 w/v%) and NaCMC (2 w/v%) polymer solutions were prepared separately under constant stirring and then equal ratios of polymer solutions (25:25 ml) were homogenously mixed under overhead stringing up to 24 h. The blend polymer solution released through a 21 gauge syringe needle into 50 ml FeCl3 solution with moderate continuous stirring to obtain smooth and spherical hydrogel beads. The ferric chloride solution with hydrogel beads was allowed for stirring at ambient temperature for 30 min. The hydrogel beads were removed from ferric chloride solution and then washed with distilled water till the removal of unreacted crosslinking agent consequently lyophilized at −80 °C. Similar procedure was followed to prepare MH drug loaded hydrogel beads by adding MH drug to the polymer blends and allowed for stirring to form homogeneous MH loaded beads.Six different formulations were synthesized by varying amount of NaCMC in NaCMC/NaAlg blend solutions, crosslinker concentration, and drug content. The placebo hydrogel beads thus prepared were formulated as CA-0. The formulations prepared by varying crosslinker concentration (1, 2, 3%) and (MHC – 100 mg and NaCMC – 2 w/v%) were designated as CA-1, CA-2 and CA-3 and also formulation (CA-4) was composed with different NaCMC content (3 w/v%), respectively. The formulations prepared with different concentrations of MH content (75, 50 mg) were designated as CA-5 and CA-6.
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