... Formulation and evaluation of floating- mucoadhesive alginate beads for targeting H .pylori Adeola O Adebisi, Peter R Laity, Barbara R Conway* Department of Pharmacy, School of Applied ... in the coating medium for 30 The beads were washed, filtered and dried as before Characterisation of beads Study of morphology and physical characteristics of alginate beads Bead sizes (n = 50) ... CaCl2 The beads formed were collected, washed, frozen in liquid N2 and freeze dried for 24 h Optimisation for the ideal concentrations of SAL, CaCl2 and curing times required for formation of discrete...