Inclusion of additives into calcite crystals allows one to embed non-native proprieties into the inorganic matrix and obtain new functional materials. Up to now, few parameters have been taken into account to evaluate the efficiency of inclusion of an additive. Taking inspiration from Nature, we grew calcite crystals in the presence of fluorescent silica nanoparticles carrying different functional groups (PluS-X) to investigate the effect of surface chemistry on the inclusion of the additives. PluS-X allowed us to keep constant all the particle characteristics, including size, while changing exposed functional groups and thus Zeta-potential. The effect on crystal morphology, the loading and distribution of PluS-X within the crystals have been evaluated with different microscopy techniques. Our data indicate that hydroxyl functionalized particles are entrapped more efficiently inside calcite single crystals without distortion of the crystal structure and inhibition of the growth.
Morphology preserving solid-to-solid transformation of minerals mediated by a self-assembled temperature responsive polymer membrane: calcite to hydroxyapatite
Incorporation of magnetic nanoparticles into lamellar polystyrene-b-poly(n-butyl methacrylate) diblock copolymer films: influence of the chain end-groups on nanostructuration
Enhanced magnetism, memory and aging in Gold-Iron oxide nanoparticle composites
在这份报告中，我们提出了系统的磁性研究纯氧化铁纳米粒子和金氧化铁纳米复合材料，增加金颗粒尺寸/含量。对于这些样品的磁性研究，我们测量了：（1）零场冷却（ZFC）和场冷却（FC）磁化，（2）交流磁化率，（3）在各种温度下磁化与场的关系，（4）在固定温度下对于各种等待时间tw的热剩磁磁化弛豫（TRM）和零场冷却磁化弛豫（ZFCM）以研究老化效应，（5）磁化记忆效应;（6）交换偏压随冷场的变化。详细的磁性测量分析表明，纯Fe 3 O 4纳米粒子样品的行为像一个超顺磁性和掺入金（Au）纳米粒子的纳米复合材料系统慢慢演变从超顺磁性超自旋玻璃态。随着Au纳米颗粒尺寸/含量的增加，记忆和老化效应增强。在这项研究中，最重要的观察是与金纳米粒子的掺入的磁化强度的增强。这种增强作用随着纳米复合材料中Au含量的增加而增加。我们已经解释了由于在Au/磁性颗粒界面处形成大的轨道磁矩而导致这种磁化强度增强的原因。
Fluoride doping into SiO2-MgO-CaO bioactive glass nanoparticles: bioactivity, biodegradation and biocompatibility assessments
Faculty of Materials Science and Engineering, K. N. Toosi University of Technology（材料科学与工程系，K.N.托基理工大学）；Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences（细胞与分子研究中心，基础健康科学研究所，沙赫鲁德医科大学）
Absence of Structural Impact of Noble Nanoparticles on P3HT: PCBM Blends for Plasmon Enhanced Bulk-Heterojunction Organic Solar Cells Probed by Synchrotron Grazing Incidence X-Ray Diffraction
Synergistic Influence of Surface Sanding Technique and Multi-Walled Carbon Nanotube Incorporation on the Mode I Fracture Behavior of Glass Composite Laminates
Influence of BaTiO_3 nanoparticles on the anisotropy of the dielectric properties of nematic liquid crystal 5CB
Institute of Physics of the National Academy of Sciences of Ukraine（乌克兰国家科学院物理研究所）；Frantsevich Institute of Materials Science, the National Academy of Sciences of Ukraine（乌克兰国家科学院弗兰采维奇材料科学研究所）
