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3D Bioplotter Research Papers
Fabrication of three-dimensional printed hybrid graphene oxide/calcium alginate network by 3D printing technology with outstanding U(VI) recycling capacity in acidic solution
In this study, a 3D-printed graphene oxide (GO)/calcium alginate (CA) hybrid network (3D GO/CA) with excellent U(VI) adsorption performance was constructed using direct ink writing-based 3D printing technology and in situ calcium ion cross-linking technology. The GO and CA sheets in 3D GO/CA were stacked layer by layer. Meanwhile, the 3D multilayered pore structure with large-scale characteristics was constructed. Furthermore, the pore structure was orderly arranged, with abundant active adsorption sites (oxygen-containing functional groups/Ca2+ binding sites) exposed. The adsorption experiment results showed that 3D GO/CA exhibited a wide valid pH range (3-12) and excellent adsorption capacity for U(VI) in a…
Three-dimensional-printed calcium alginate/graphene oxide porous adsorbent with super-high lead ion adsorption ability in aqueous solution
Using three-dimensional (3D) printing technology, a 3D calcium alginate/graphene oxide (3D CA/GO) adsorbent, with a hierarchical macroporous structure, was successfully constructed. Owing to the optimized construction process, the 3D CA/GO showed an enhanced adsorption capacity (490.2 mg/g at pH = 3.0) for lead (Pb(II)) in aqueous solution, which was two times higher than reported in the literature). Meanwhile, the selective adsorption ratio of 3D CA/GO for Pb(II) reached 99.8% when positive ions occurred. In addition, after eight adsorption–desorption cycles, the adsorption capacity did not experience a significant decrease and the structure remained stable. Meanwhile, the adsorbed Pb(II) could be eluted…
Zein regulating apatite mineralization, degradability, in vitro cells responses and in vivo osteogenesis of 3D-printed scaffold of n-MS/ZN/PCL ternary composite
Bioactive and degradable scaffolds of nano magnesium silicate (n-MS)/zein (ZN)/poly(caprolactone) (PCL) ternary composites were prepared by 3D-printing method. The results showed that the 3D-printed scaffolds possessed controllable pore structure, and pore morphology, pore size, porosity and pore interconnectivity of the scaffolds can be efficiently adjusted. In addition, the apatite-mineralization ability of the scaffolds in simulated body fluids was obviously improved with the increase of ZN content, in which the scaffold with 20 w% ZN (C20) possessed excellent apatite-mineralization ability. Moreover, the degradability of the scaffolds was significantly enhanced with the increase of ZN content in the scaffolds. The degradation of…