序列性的极端梯度增强基于描述符的缩小用于Zwitterionic基于聚合物的纳米粒子的大小预测
Sima Rezvantalab1, Sara Mihandoost2, Roger M Pallares3
1Chemical Engineering Department, Urmia University of Technology, 57166-419 Urmia, Iran.
ACS omega
|August 18, 2025
概括
机器学习准确地预测了用于药物输送系统的zwitterionic聚合物纳米粒子大小. 一种新的顺序XGBoost方法确定pH为影响纳米粒子大小的关键因素,优于其他模型.
科学领域:
- 材料科学 材料科学 材料科学
- 计算化学计算化学
- 药物运输 药物运输 药物运输
背景情况:
- 复合聚合物 (ZP) 在药物输送系统 (DDS) 中至关重要.
- 控制基于ZP的DDS的大小对于有效性至关重要.
- 需要了解对ZP自组装和尺寸的结构影响.
研究的目的:
- 为了调查结构描述符如何影响基于zwiwterionic聚合物的药物输送系统的尺寸.
- 开发和验证用于预测纳米粒子大小的机器学习方法.
- 确定控制ZP自组装和尺寸的关键结构特征.
主要方法:
- 开发了一种新的描述符减少策略,即Sequential XGBoost (SXGB),旨在将312个分子描述符简化为11个关键特征.
- 机器学习模型,包括SXGB,在一个精心策划的数据集上进行训练和测试.
- 局部可解释的模型不可知解释 (LIME) 用于描述器可解释性,数据增强增强了模型的稳定性.
主要成果:
- 该SXGB模型在预测纳米粒子大小方面取得了很高的准确性,R2值为84.2% (训练) 和80.9% (测试).
- 确定pH值是影响zwitterionic聚合物纳米粒子大小的最有影响力的描述因素.
- 在预测准确度方面,SXGB模型的表现优于支持向量回归和随机森林模型.
结论:
- 该SXGB机器学习方法有效地预测药物输送应用中的zwitterionic聚合物纳米粒子大小.
- 结构描述符,特别是pH值,显著影响纳米粒子自组装和最终尺寸.
- 这项研究提供了一个强大的计算框架,用于设计优化的基于ZP的药物输送系统.
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