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Lu Dezhi,Yang Yang,Zhang Pingping,Ma Zhenjiang,Li Wentao,Song Yan,Feng Haiyang,Yu Wenqiang,Ren Fuchao,Li Tao,Zeng Hong,Wang Jinwu 한국조직공학과 재생의학회 2022 조직공학과 재생의학 Vol.19 No.6
Spinal cord injury (SCI) is a disabling and destructive central nervous system injury that has not yet been successfully treated at this stage. Three-dimensional (3D) bioprinting has become a promising method to produce more biologically complex microstructures, which fabricate living neural constructs with anatomically accurate complex geometries and spatial distributions of neural stem cells, and this is critical in the treatment of SCI. With the development of 3D printing technology and the deepening of research, neural tissue engineering research using different printing methods, bio-inks, and cells to repair SCI has achieved certain results. Although satisfactory results have not yet been achieved, they have provided novel ideas for the clinical treatment of SCI. Considering the potential impact of 3D bioprinting technology on neural studies, this review focuses on 3D bioprinting methods widely used in SCI neural tissue engineering, and the latest technological applications of bioprinting of nerve tissues for the repair of SCI are discussed. In addition to introducing the recent progress, this work also describes the existing limitations and highlights emerging possibilities and future prospects in this field.
Zhipeng Lu,Hengbo Yin,Dezhi Gao,Aili Wang,Shuxin Liu 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.31 No.-
Catalytic dehydrogenation of methanol to methyl formate over SiO2-, hydroxyapatite (HAP)-, and MgOsupportedcopper catalysts was investigated. Metallic copper (Cu0) was the active site for the methanoldehydrogenation to methyl formate. Cu/SiO2 catalyst with low basicity and weak-strength basic siteeffectively catalyzed the methanol dehydrogenation to methyl formate. Cu/HAP and Cu/MgO catalystswith high basicities and strong-strength basic sites caused the degradation of the resultant methylformate to CO and H2. Over Cu(5)/SiO2 catalyst, the reaction activation energies for methanoldehydrogenation to methyl formate and methyl formate degradation to CO and H2 were 58.3 and91.1 kJ mol 1, respectively.