A hybrid analytical model of sterilization effect on marine bacteria using microbubbles interacting with shock wave
A hybrid analytical model of sterilization effect on marine bacteria using microbubbles interacting with shock wave
复制标题
DOI：
10.1007/s00773-015-0360-z
复制
发表时间：
2016-09
影响因子：
2.6
通讯作者：
Jingzhu Wang;A. Abe
中科院分区：
文献类型：
--
作者：
Jingzhu Wang;A. Abe
本文报道了一个由生物概率模型和物理影响模型组成的混合分析模型，该模型被用来预测利用微泡与冲击波相互作用的海洋细菌灭菌方法的细胞存活率。在利用实验压力数据进行气泡运动分析和一维数值模拟的基础上，建立了微气泡与冲击波相互作用的物理碰撞模型。利用Herring气泡运动方程得到的气泡表面速度变化，用二阶有限差分格式模拟了微气泡运动产生的水下冲击波，并用导致海洋细菌细胞壁破坏的临界压力估算了微气泡周围灭菌空间的半径。本杂交分析预测的灭菌效果与生物实验结果吻合较好。
The present paper reports on a hybrid analytical model consisting of a biological probability model and a physical impact model proposed to predict the cell viability ratio of a sterilization method for marine bacteria using microbubbles interacting with a shock wave. The physical impact model of interaction between a microbubble and a shock wave is developed on the basis of the bubble motion analysis with experimental pressure data and a one-dimensional numerical simulation. An underwater shock wave produced by microbubble motion is simulated using a second-order finite differential scheme by means of bubble surface velocity variation obtained from Herring’s bubble motion equation, and the radius of the sterilized space around a microbubble is estimated by the critical pressure that just causes cell wall damage of marine bacteria. The sterilization effect predicted by the present hybrid analysis shows a good agreement with the bio-experimental result.