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在原生条件下单个纳米粒子形态变化的光学分辨率:非超分辨率方法

Yuhao Zheng¹, Guohailin Xu^2,3, Jingwen Chen³

¹Key Laboratory of Drug Targets and Translational Medicine for Cardio-cerebrovascular Diseases, Medical Basic Research Innovation Center for Cardiovascular and Cerebrovascular Diseases, Ministry of Education, School of Pharmacy, Nanjing Medical University, Nanjing, Jiangsu 211166, China.

|July 9, 2025

概括

角扫描暗场散射显微镜 (ASDFSM) 图像纳米粒子形态没有更高分辨率. 这种无标签的技术与机器学习相结合,准确地识别了实地研究的形状.

科学领域:

纳米科学和纳米技术
光学显微镜的使用方法
材料科学材料科学材料科学

背景情况:

在本地条件下单个纳米粒子形态的无标签成像是困难的.
了解纳米粒子形态对于合成,特性和应用至关重要.

研究的目的:

开发一种新的方法,用于单个纳米粒子形态的无标签成像.
为了实现高通量,纳米粒子动态的现场监测.

主要方法:

开发了角扫描暗场散射显微镜 (ASDFSM).
利用视角依赖的散射强度来确定形态.
集成了一个随机森林机器学习算法用于形态识别.
应用了在高温溶液中纳米粒子腐蚀和生长的现场监测技术.

主要成果:

ASDFSM可以解决纳米粒子形态到1/5波长的落下的光.
在一个大视野中实现了众多纳米粒子的同时成像.
当与机器学习相结合时,形态识别准确度平均达到96%.
证明了纳米粒子运动的现场监测.

结论:

ASDFSM为纳米粒子形态分析提供了一种高通量,非侵入性和动态的方法.
与现有方法相比,该技术简化了纳米粒子表征.
ASDFSM显示出在纳米科学中广泛应用的巨大潜力.

关键词:

角扫描扫描是指角度扫描.暗场散射显微镜的散射显微镜.具有高通量功率的高通量功率形态识别形态识别纳米颗粒是一种纳米粒子.

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