使用纳米粒子受体进行可逆的"不可逆的"化学素抑制
Nicholas O Fischer1, Ayush Verma, Catherine M Goodman
1Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA.
Journal of the American Chemical Society
|October 30, 2003
概括
研究人员开发了一种方法,使用纳米粒子逆转化莫素的抑制作用. 酸表面活性剂被用于恢复高达50%的酶的原始活性和原生结构.
科学领域:
- 生物化学 生化学
- 纳米技术 纳米技术
- 蛋白质科学 蛋白质科学
背景情况:
- 无离子功能化的两性纳米颗粒通过静电结合和变性无可逆转地抑制了化学.
- 这种不可逆转的抑制在生物和治疗应用中带来了挑战.
研究的目的:
- 为了研究纳米颗粒介导的不可逆转的基米素抑制的破坏.
- 为了拯救和描述受抑制的基米托里普辛的活性和结构.
主要方法:
- 用阴离子表面活性剂对纳米粒子表面进行修改.
- 动态光散射 (DLS) 来评估纳米粒子-蛋白质复合体解离.
- 光和光异质性,以评估被拯救的基米的构造状态.
主要成果:
- 添加长链阴离子表面活性剂可以挽救高达50%的原始基米素活性.
- DLS证实了纳米颗粒表面释放的基米素.
- 光光谱学表明,被救出的基米素恢复了高程度的原生结构.
结论:
- 纳米颗粒诱导的不可逆转的基米素抑制可以使用阴离子表面活性剂逆转.
- 这种方法可以恢复酶活性和原生形状.
- 在酶回收和控制释放系统中的潜在应用.
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