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英语翻译CaCO3superstructureswithcomplexformsandhierarchicalsurfacetexturesweremineralizedinthepresenceofpeptidetypeblockcopolymerpoly(ethyleneglycol)-b-poly(L-glutamicacid)(PEG-b-pGlu)asacrystalgrowthmodifierindimethy
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英语翻译
CaCO3 superstructures with complex forms and hierarchical surface textures were mineralized in the presence of peptide type block copolymer poly(ethylene glycol)-b-poly(L-glutamic acid) (PEG-b-pGlu) as a crystal growth modifier in dimethyl formamide (DMF) solution.Spindle-like CaCO3 crystals with a rather smooth surface and a size of 10 μm in length and a maximum diameter of 6 μm were mineralized at 242 °C.Unique ellipsoid-like CaCO3 particles with many similar thorns distributed on the particle surface formed when the mineralization temperature was kept at 142 °C.Complex column-like CaCO3 superstructures comprised of many tiny rods and irregular particles were observed at 42 °C.In addition,when the reagent concentration is varied,the morphology of CaCO3 changes from a mixture of spherical and ellipsoidal structures to a kind of complex ellipsoidal superstructure whose surface is attached by many hierarchical tubular structures,and then to a complex columnar structure,when the concentration of Ca2+ ions was varied from 40 to 20 mM and finally decreased to 10 mM,respectively.Correspondingly,phase transition occurred from a mixture of aragonite and calcite to pure calcite,and then to a mixture of vaterite and calcite when the mineralization temperature increased.Moreover,changing the polymer concentration resulted in phase transition from calcite to a mixture of aragonite and calcite,and then to a mixture of vaterite and calcite.An emergent self-organization process and its combination with an aggregated mechanism have been proposed for the formation of the complex ellipsoidal superstructures.The results imply that the specific biomimetic synthesis strategy in a nonaqueous solution can provide a useful pathway to produce inorganic or inorganic/organic hybrid materials with a unique morphology and specific textures.
CaCO3 superstructures with complex forms and hierarchical surface textures were mineralized in the presence of peptide type block copolymer poly(ethylene glycol)-b-poly(L-glutamic acid) (PEG-b-pGlu) as a crystal growth modifier in dimethyl formamide (DMF) solution.Spindle-like CaCO3 crystals with a rather smooth surface and a size of 10 μm in length and a maximum diameter of 6 μm were mineralized at 242 °C.Unique ellipsoid-like CaCO3 particles with many similar thorns distributed on the particle surface formed when the mineralization temperature was kept at 142 °C.Complex column-like CaCO3 superstructures comprised of many tiny rods and irregular particles were observed at 42 °C.In addition,when the reagent concentration is varied,the morphology of CaCO3 changes from a mixture of spherical and ellipsoidal structures to a kind of complex ellipsoidal superstructure whose surface is attached by many hierarchical tubular structures,and then to a complex columnar structure,when the concentration of Ca2+ ions was varied from 40 to 20 mM and finally decreased to 10 mM,respectively.Correspondingly,phase transition occurred from a mixture of aragonite and calcite to pure calcite,and then to a mixture of vaterite and calcite when the mineralization temperature increased.Moreover,changing the polymer concentration resulted in phase transition from calcite to a mixture of aragonite and calcite,and then to a mixture of vaterite and calcite.An emergent self-organization process and its combination with an aggregated mechanism have been proposed for the formation of the complex ellipsoidal superstructures.The results imply that the specific biomimetic synthesis strategy in a nonaqueous solution can provide a useful pathway to produce inorganic or inorganic/organic hybrid materials with a unique morphology and specific textures.
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碳酸钙上层建筑与复杂的形式和层次的表面纹理被矿化在在场的肽类嵌段共聚物聚(乙二醇) -b -聚( L -谷氨酸) (聚乙二醇的B - p glu)作为一个晶体生长调节剂在二甲基甲酰胺(二甲基甲酰胺)的解决办法.主轴一样的碳酸钙晶体的一个比较光滑的表面和尺寸10 μ m的长度和最大直径6 μ m的矿化度在242 ° C时,独特的椭球一样的CaCO3粒子与许多类似的荆棘分布于颗粒表面形成时,成矿温度保持在142 ° C时复杂的柱一样,碳酸钙上层建筑组成的许多细小的棒和不规则颗粒,观察在42 ° C时,此外,当试剂浓度是各有不同,形态碳酸钙的变化,从一个混合球形和椭圆形结构,以一种复杂的椭球的上层建筑,其表面是非常重视的许多层次管状结构,然后以一个复杂的柱状结构,当浓度的钙离子是不同的40至20毫米,最后下降到10毫米,分别为相应地,相变发生的混合物文石和方解石纯方解石,然后向混合物球霞石和方解石时,矿化温度升高.此外,改变聚合物浓度,导致在第二阶段过渡,由方解石,以混合文石和方解石,然后向混合物球霞石和方解石.一个新兴的自组织过程及其组合与汇总机制,已提议形成的复杂的椭球上层建筑.结果暗示具体的仿生合成策略,在一个非水的解决方案可以提供一个有用的途径,以生产无机或无机/有机杂化材料的一个独特的形态和具体的纹理.
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