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您的检索式：作者名="Boshi Feng"
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| 1 | 3D printing of conch-like scaffolds for guiding cell migration and directional bone growth显示文摘Regeneration of severe bone defects remains an enormous challenge in clinic.Developing regenerative scaffolds to directionally guide bone growth is a potential strategy to overcome this hurdle.Conch,an interesting creature widely spreading in ocean,has tough spiral shell that can continuously grow along the spiral direction.Herein,inspired by the physiological features of conches,a conch-like(CL)scaffold based onβ-TCP bioceramic material was successfully prepared for guiding directional bone growth via digital light processing(DLP)-based 3D printing.Benefiting from the spiral structure,the CL scaffolds significantly improved cell adhesion,proliferation and osteogenic differentiation in vitro compared to the conventional 3D scaffolds.Particularly,the spiral structure in the scaffolds could efficiently induce cells to migrate from the bottom to the top of the scaffolds,which was like“cells climbing stairs”.Furthermore,the capability of guiding directional bone growth for the CL scaffolds was demonstrated by a special half-embedded femoral defects model in rabbits.The new bone tissue could consecutively grow into the protruded part of the scaffolds along the spiral cavities.This work provides a promising strategy to construct biomimetic biomaterials for guiding directional bone tissue growth,which offers a new treatment concept for severe bone defects,and even limb regeneration. | Boshi Feng Meng Zhang Chen Qin Dong Zhai Yufeng Wang Yanling Zhou Jiang Chang Yufang Zhu Chengtie Wu | 2023 | Bioactive Materials2023，，4： | 1 |
| 2 | 6-41 Chopper Control and Monitoring System of HIMM显示文摘Chopper control and monitoring system plays an important role in HIMM (Heavy icon medical machine). It is used to control and monitor the outputs voltage of the pulse generator. The pulse generator outputs high voltage wave forms to 3 500 V on the basis of an input trigger, which requires +5 V 1 V into 50 Ω with a risetime of <20 ns togate. The Chopper control and monitoring system is designed and the structure of it is shown in Fig. 1. | Song Boshi Yang Feng Wang Qiang | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
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