A new structure and working principle of the chip integrated with micro valveless pump for capillary electrophoresis was proposed in this paper. The micro valveless pump with plane structure has advantages of simple s...A new structure and working principle of the chip integrated with micro valveless pump for capillary electrophoresis was proposed in this paper. The micro valveless pump with plane structure has advantages of simple structure, and the process technology is compatible with existing micro chips for capillary electrophoresis. Based upon the mathematical model, simulation study of micro pump was carried out to investigate the influence of structural parameters on flow characteristics, and the performance of the integrated micro pump was also tested with different control parameters. The simulation results agree with the experimental results. Three samples, which are amino acid, fluorescein and buffer solution, have been examined with this chip. The results of the primary experiments showed that the micro valveless pump was promising in the integration and automatization of miniature integrated fluidic systems.展开更多
介绍了一种基于高性能SOC(System on Chip)C8051F020的微流控芯片多功能控制系统,它针对不同芯片管道结构可以实现灵活多样的控制,同时系统还可采用外部接触法对微芯片温度进行实时PID模糊监控。系统是基于高性能C8051内核,外围扩展出I/...介绍了一种基于高性能SOC(System on Chip)C8051F020的微流控芯片多功能控制系统,它针对不同芯片管道结构可以实现灵活多样的控制,同时系统还可采用外部接触法对微芯片温度进行实时PID模糊监控。系统是基于高性能C8051内核,外围扩展出I/O、A/D、D/A、通信等功能模块,与PC和触摸屏构成了一套完整的多功能微芯片电泳控制系统。系统可灵活设定微芯片的电泳进样分离时间及电压,并且采用光耦隔离I/O实现高压隔离,双级继电器以实现高压无缝极间切换,具有较高的智能自动化。展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant Nos.50335010,50175098).
文摘A new structure and working principle of the chip integrated with micro valveless pump for capillary electrophoresis was proposed in this paper. The micro valveless pump with plane structure has advantages of simple structure, and the process technology is compatible with existing micro chips for capillary electrophoresis. Based upon the mathematical model, simulation study of micro pump was carried out to investigate the influence of structural parameters on flow characteristics, and the performance of the integrated micro pump was also tested with different control parameters. The simulation results agree with the experimental results. Three samples, which are amino acid, fluorescein and buffer solution, have been examined with this chip. The results of the primary experiments showed that the micro valveless pump was promising in the integration and automatization of miniature integrated fluidic systems.
文摘介绍了一种基于高性能SOC(System on Chip)C8051F020的微流控芯片多功能控制系统,它针对不同芯片管道结构可以实现灵活多样的控制,同时系统还可采用外部接触法对微芯片温度进行实时PID模糊监控。系统是基于高性能C8051内核,外围扩展出I/O、A/D、D/A、通信等功能模块,与PC和触摸屏构成了一套完整的多功能微芯片电泳控制系统。系统可灵活设定微芯片的电泳进样分离时间及电压,并且采用光耦隔离I/O实现高压隔离,双级继电器以实现高压无缝极间切换,具有较高的智能自动化。