热力学微环境工程在半孔纳米反应器中,以增强生物催化剂,用于人工智能增强的超敏感病原体检测
Yuechun Li1, Chenjie Nie1, Chenxin Ji1
1College of Food Science and Engineering, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China.
Analytical chemistry
|October 11, 2025
概括
工程纳米生物催化剂通过优化微环境以检测病原体来增强酶结合亲和力. 这导致超敏感的沙门氏菌检测和人工智能驱动的食品样本分类.
科学领域:
- 纳米生物催化剂的应用
- 生物界面科学 生物界面科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 支持酶的微环境对于在病原体检测中的纳米生物催化剂至关重要.
- 了解微环境调制对酶固定能量的影响还没有得到充分的研究.
研究的目的:
- 为了设计具有量身定制的表面化学质量的半孔甲纳米球 (mRFNSs).
- 阐明微环境调制如何决定酶固定能量和结合亲和力.
- 开发一个人工智能增强的诊断平台,用于超敏感病原体检测.
主要方法:
- 具有受控孔径 (9.95 nm) 和表面化学的mRFNS的建筑工程.
- 酶固定能量的热力学剖析,包括结合常数 (Ka) 和吉布斯自由能 (ΔG).
- 使用量子点 (SiQD) 和卷积神经网络 (CNN) 进行病原体检测和分类的比度光免疫试验的开发.
主要成果:
- 根据贝他因量身定制的mRFNS显示出最佳的固定效率和活性,显著重塑结合能量.
- 在结合常数 (Ka = 1.12 × 10^8 M^-1) 和优越的热力学自发性 (ΔG = -46.0 kJ mol^-1) 中实现了4.01倍的增强.
- 使用CNN分析智能手机捕获的光,开发了一种比度光免疫试验,用于超敏感的沙门氏菌型菌检测 (100 CFU mL^-1) 和便携式分类 (93.75%准确度).
结论:
- 建立了热力学微环境相互作用和纳米生物催化剂性能之间的直接相关性.
- 通过协调酶支持微环境,展示了下一代纳米生物催化剂的蓝图.
- 桥梁生物界面科学与人工智能增强的诊断,以提高食品安全和病原体检测.
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