趋光性自振荡胶的性能和集体行为

正负趋光性（也就是向光移动和避光移动）作为生命有机体独特的自适应功能，正在被生物科学工作者逐渐认识和理解，同时光致有机个体之间通信产生集体行为和时空有序结构(如协同运动、传递波、自组装、自愈合和形状改变等)。本项目在非化学反应体系中利用化学振荡、响应胶和空间差异性优化结合来系统设计正负趋光性胶，研究其趋光运动性能(移动速度、胶移动与化学波的传递方向顺逆性等)和形状改变规律, 进一步研究趋光性胶之间通信信号传递和集体行为。通过反应—扩散—力体系的机理模型模拟与分析来理解和预测各种趋光运动性能和集体行为, 同时开发具有应用潜力的仿生和传感技术如趋光性胶仿生自愈合、形变控制和微通道目标诊断。

As the unique adaptive function of living organisms, phototaxis, i.e. phototropic and photophobic movement, has been gradually understood by biologists. Photo-induced communications among living organisms produce ordered structures and collective dynamics such as synchronization dynamics, traveling waves, self-assembly, self-healing and shape changes. This project will systematically design phototactic gels using oscillatory chemical reactions with nonmonotonic photo-effects on oscillation frequency, light distribution and gel chemotaxis, to study phototatic performance such as movement velocity, direct and retrograde wave locomotion, shape changes and collective behavior. Diverse phototaxis phenomena and collective behavior will be explained and predicted through model simulation and theoretical analysis of reaction-diffusion-mechanics systems. Furthermore, biomimetic and sensing technologies of potential application, including self-healing of phototatic gels, shape control and the target diagnosis in microchannels will be developed in this project.