Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing

2 ARTICLES PUBLISHED IN JoVE

Genetics

Inducing Hairy Roots by Agrobacterium rhizogenes-Mediated Transformation in Tartary Buckwheat (Fagopyrum tataricum)

Yaolei Mi^1,2, Zhihui Zhu³, Guangtao Qian³, Yu Li⁴, Xiangxiao Meng¹, Jianping Xue³, Qingfu Chen⁵, Wei Sun¹, Yuhua Shi^1,2

¹Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, ²Artemisinin Research Center, China Academy of Chinese Medical Sciences, ³College of Life Science, Huaibei Normal University, ⁴Economic Crop Research Institute Sichuan Academy of Agriculture Sciences, ⁵Research Center of Buckwheat Industry Technology, Guizhou Normal University

We describe a method of inducing hairy roots by Agrobacterium rhizogenes-mediated transformation in Tartary buckwheat (Fagopyrum tataricum). This can be used to investigate gene functions and production of secondary metabolites in Tartary buckwheat, be adopted for any genetic transformation, or used for other medicinal plants after improvement.

Bioengineering

3D Printing of In Vitro Hydrogel Microcarriers by Alternating Viscous-Inertial Force Jetting

Tiankun Liu^*1,2, Yongchun Shao^*1,2, Zitong Wang^1,2, Yuqiu Chen^1,2, Yuan Pang^1,2, Ding Weng^1,2, Wei Sun^1,2,3

¹Biomanufacturing Center, Dept. of Mechanical Engineering, Tsinghua University, ²Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, ³Department of Mechanical Engineering, Drexel University

Presented here is a mild 3D printing technique driven by alternating viscous-inertial forces to enable the construction of hydrogel microcarriers. Homemade nozzles offer flexibility, allowing easy replacement for different materials and diameters. Cell binding microcarriers with a diameter of 50-500 µm can be obtained and collected for further culturing.