Development of a Piezoelectric Squeeze Mode Drop-on-demand Droplet Generator on Inkjet Bioprinting

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	Development of a Piezoelectric Squeeze Mode Drop-on-demand Droplet Generator on Inkjet Bioprinting
	Zhang, Chuanjie ; Zheng XF(郑雄飞); Wang HR(王赫然)
	2016
会议名称	2016 International Symposium on Advances in Materials Science (IAMS 2016)
会议日期	Augest 20-21, 2016
会议地点	Shanghai
关键词	droplet piezoelectric viscosity alginate spherical squeeze printing camera generator transducer
页码	1-6
通讯作者	Zheng XF(郑雄飞)
中文摘要	As one of the most integrated and cutting-edge natural science, tissue engineering has caused more and more attention which develops biomaterials to repair, improve even substitute human organs and its functions.As the most concerned application in tissue engineering, conventional bioextrusion mode bioprinting leads to a high shear stress which reduces cell viability and has significant limits in low viscosity biomaterials.Therefore, a low shear stress piezoelectric squeeze mode droplet generator was designed for printing low viscosity materials which comprised of a inkjet printhead, forming the droplet when applying a special voltage and a back pressure system, supplying steady liquid.Sodium alginate solution of 0.5% concentration was pushed to form a near-spherical droplet by a diaphragm type piezoelectric transducer, which actuated by a function signal generator.A charge coupled device(CCD) camera is simultaneously triggered by the driving pulse to measure the dimension and velocity of the droplet with a special image processing methods.In order to improve the printing accuracy and increase the cell viability, droplet velocity must be controlled at a appropriate value and reduce the diameter of dispensed droplet, therefore, experiments about frenquency, pulse amplititude and pulse width was explored multi-times to obtain the final dispensing parameters.
产权排序	1
会议录	Proceedings of 2016 International Symposium on Advances in Materials Science (IAMS 2016)
语种	英语
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/21071]
专题	沈阳自动化研究所_机器人学研究室
作者单位	1.Department of Mechanical Engineering,Shenyang Ligong University, Shenyang 110159, China 2.State Key Laboratory of Robotics,Shenyang Institute of Automation, Chinese Academy of Science,Shenyang 110016, China
推荐引用方式 GB/T 7714	Zhang, Chuanjie,Zheng XF,Wang HR. Development of a Piezoelectric Squeeze Mode Drop-on-demand Droplet Generator on Inkjet Bioprinting[C]. 见:2016 International Symposium on Advances in Materials Science (IAMS 2016). Shanghai. Augest 20-21, 2016.