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第 5 期 余 瞻,等: 绿色合成细菌纤维素及其在面膜基材上的应用 ·913·
的纳米纤维管束使V C 进入BC面膜基材需要经过更长 与控制释放能力也远超无纺布及蚕丝面膜基材。因
的路径和时间,从而导致 BC 的吸附速率有所减缓。 此, BC 是制备面膜基材的一个优良选择。后续可对
2.6.2 各种面膜基材对营养物质控释能力测试 BC 面膜基材进一步进行细胞、小鼠等体外体内实
图 8 为 3 种面膜基材对营养物质 V C 的控制释放 验,以评价 BC 面膜基材在创面修复、皮肤美白等
结果。由图 8 可知,无纺布面膜基材在前 30 min 已 方面的特性,为其在护肤品方向上的应用提供可靠
释放了大部分的营养物质,随后缓慢释放至 90 min 的理论支撑。
达到平衡;蚕丝面膜基材在 30 min 时对营养物质的
参考文献:
释放量达到最大,而 BC 面膜基材的最大释放量在
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此外,相同面积的 BC 面膜基材对营养物质的吸附 University (东华大学), 2014.