离子表面活性剂改变病毒表面特性和水系统中的静电相互作用.
Makayla Loey1, Gabriel Costa Alverni Da Hora2, Jennifer Weidhaas1
1University of Utah, Department of Civil and Environmental Engineering, 110 Central Campus Drive, Suite 2000, Salt Lake City UT 84112, United States.
FEMS microbes
|September 24, 2025
概括
离子表面活性剂在亚抑制度下改变病毒的特性,如同电点和大小. 这些相互作用,特别是与二甲基硫酸盐 (SDS) 和二甲基二甲基化 (BAC) 的相互作用,影响病毒表面蛋白和与表面的相互作用.
科学领域:
- 环境微生物学 环境微生物学
- 生物物理学的生物物理.
- 表面化学 表面化学
背景情况:
- 在亚抑制度下,病毒和表面活性剂之间的相互作用尚不清楚.
- 低于最小抑制度 (MIC) 的表面活性剂可能会改变病毒表面的特性,但不会导致无活化.
研究的目的:
- 确定二甲基二甲基化 (BAC) 和二甲基硫酸盐 (SDS) 对人类腺病毒 (ADV) 和小鼠肝炎病毒 (MHV) 的MIC.
- 研究亚MIC表面活性剂如何影响病毒同电点 (IEP),水合直径和表面蛋白相互作用.
主要方法:
- 用BAC和SDS确定ADV和MHV的最小抑制度 (MIC).
- 使用动态光散射测量病毒异电点 (IEP) 和水合直径.
- 分子动力学模拟用于分析表面活性剂-蛋白质相互作用.
主要成果:
- 无论是BAC还是SDS,对ADV和MHV的MIC均为1mg/L.
- 表面活性剂暴露降低了两种病毒的实验IEP.
- 动态光散射显示,在暴露表面活性剂时,ADV和MHV的水合直径减少.
- 分子动力学模拟显示了SDS和BAC与MHV尖端蛋白的差异相互作用.
结论:
- 离子表面活性剂在亚抑制度显著改变病毒的物理化学特性,包括IEP和水合直径.
- 观察到的病毒特性变化可以影响它们在各种环境中与表面的相互作用.
- 与BAC相比,SDS对MHV尖端蛋白的静电环境产生了更明显的影响.
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