辐射诱导纳米气泡的分子动力学模拟
Molecular Dynamics Simulation of Radiation-induced Nanobubbles
赵畅 1安巍 1张一帆1
作者信息
- 1. 同济大学机械与能源工程学院,上海 201804
- 折叠
摘要
辐射诱导下产生的纳米气泡在很多新兴产业中具有重要的应用价值;然而,在连续入射光照射下,小尺寸粒子表面气泡成核阈值高、产生气泡困难等问题限制了其在光流控、生物医学等领域中的应用.因此,本文提出将小尺寸纳米粒子组装成聚集阵列的方式,明显促进了其表面气泡的成核过程.不仅如此,当激发局域等离子共振效应时,发现局域增强电场能够进一步显著加快气泡生成.本文能够为促进纳米粒子表面气泡的成核过程提供新思路,为将小尺寸粒子应用于诸多新兴领域提供有力的理论指导.
Abstract
Radiation-induced nanobubbles have important applications in many emerging indus-tries such as optofluidics and biomedicine.However,their applications are severely constrained by the high bubble nucleation threshold and the challenging bubble generation on the surface of small-sized particles under continuous incident light irradiation.The results of the present work indicate that a regular-aggregated particle array can obviously facilitate the nucleation process of bubbles on their surfaces.Additionally,the results of molecular dynamics simulation show the localized enhanced electric field may further accelerate the bubble generation when the LSPR ef-fect is excited.This work provides a fresh perspective on the nucleation of nanoparticle surface bubbles as well as a theoretical direction for the use of small-sized particles in several growing domains.
关键词
纳米汽泡/表面等离子共振/分子模拟Key words
nanobubbles/surface plasmon resonance/molecular dynamics simulation引用本文复制引用
基金项目
上海市自然科学基金资助项目(20ZR1459600)
出版年
2024
NETL
NSTL
万方数据