“SENSITIVE, SELECTIVE AND RAPID HIGH PERFORMANCE …

The most commonly used polyanions are polysaccharides bearing carboxylic groups such as alginate, pectin or xanthenes. Proteins such as collagen, synthetic polymers such as poly acrylic acid (PAA) have also been investigated polyanions that form polyelectrolytes with chitosan4. The drug embedded in the polymer at different pH, it may swell and ... ................
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