Carrageenan hydrogel. Natural sulfate containing polysaccharide. Hydrogel rigidity can be influenced by cation concentration. Very good stabilization against nonspecific binding under high salt conditions.

• 载聚凝胶，含有聚糖自然脂质，其中离子浓缩能引起胶体凝固，有极高的稳定性，避免在盐性条件下产生非特异性结合。