修改磁纳米粒子与人体白蛋白之间的相互作用:动力学和异温研究以及在蛋白质耗尽中的应用
Diailison Teixeira de Carvalho1, Mariane Gonçalves Santos2, Daniela Bataglia Hirata2
1Toxicants and Drugs Analysis Laboratory - LATF, Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 37130-001 Alfenas, MG, Brazil.
International journal of biological macromolecules
|September 23, 2024
概括
用四乙烯正酸盐 (Fe3O4@TEOS) 和牛血清白蛋白 (Fe3O4@TEOS@BSA) 修改的磁性纳米粒子有效地从人血清中去除了白蛋白. 这种磁性分散固体相提取方法提供了一种多功能且可靠的样本准备技术,用于特定的白蛋白耗尽.
科学领域:
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
- 分析化学 分析化学
背景情况:
- 人类血清白蛋白 (HSA) 是血清中最丰富的蛋白质,通常会干扰低丰度生物标志物的分析.
- 在蛋白质组学研究和生物标志物发现中,有效地消耗HSA至关重要.
- 开发有效和有选择的吸附材料用于HSA耗尽是样本准备的持续挑战.
研究的目的:
- 为了合成和表征磁性纳米粒子 (Fe3O4@TEOS和Fe3O4@TEOS@BSA) 用于白蛋白耗尽.
- 优化磁性分散固相提取 (MD-SPE) 协议用于从人血清中去除HSA.
- 为了评估开发的吸收材料的吸附动力学,异温和脱吸特性.
主要方法:
- 合成和表征Fe3O4@TEOS和Fe3O4@TEOS@BSA纳米粒子使用XRD,TGA,FTIR,泽塔潜力和SEM.
- 优化MD-SPE协议使用中央复合可旋转设计,分析纳米粒子质量,pH和白蛋白度等变量.
- 吸附动力学和异热学研究分别与Avrami和Freundlich模型相匹配.
- 电泳分析 (SDS-PAGE) 用于评估蛋白质耗尽效率.
主要成果:
- Fe3O4@TEOS和Fe3O4@TEOS@BSA纳米粒子表现出高热稳定性和pH取决于表面电荷.
- 对HSA的吸附能力为Fe3O4@TEOS的11.93毫克g-1和Fe3O4@TEOS@BSA的14.89毫克g-1.
- Fe3O4@TEOS对HSA耗尽的亲和力和效率更高,耗尽比例可控.
- 通过调整样品和化剂的pH值和体积,有效地控制了蛋白质溶解.
结论:
- 开发的Fe3O4@TEOS纳米颗粒是有效的吸收剂,可以从人血清中快速,可靠和特定地减少白蛋白.
- MD-SPE方法提供了一种适用于蛋白质组分析和生物标志物发现的多功能样本制备技术.
- 控制式耗尽能力允许根据实验需求量身定制的样品处理.
关键词:
吸附方式 吸附方式 吸附方式BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA BSA电泳术是一种电泳术.磁铁石是一种磁铁石.优化优化 优化优化样品的准备 样品的准备泰奥斯 (Teos) 是一个神话.
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