Finas Marie, Girard Hugues A, Arnault Jean-Charles
Université Paris-Saclay, CEA, CNRS, NIMBE 91191 Gif sur Yvette France
Nanoscale Adv. 2024 Aug 22;6(21):5375-87. doi: 10.1039/d4na00487f.
Nanodiamonds exhibit various properties, such as surface reconstruction, electrostatic potentials of facets, and thermal, fluorescence, or quantum characteristics, which are dependent on their size. However, the synthesis method can lead to significant size polydispersity, particularly in nanodiamonds obtained from milling (MND). Therefore, it is essential to efficiently sort MND by size to ensure uniformity and optimize their properties for biomedical, sensing or energy applications. This method successfully isolates nanodiamonds into three distinct size ranges: approximately 10 nm for the smallest, 25 nm for the intermediate, and 35 nm for the largest. The protocol was then extended to hydrogenated MND from the same source, resulting in the separation of similar size populations.
纳米金刚石具有多种特性，如表面重构、晶面的静电势以及热学、荧光或量子特性，这些特性取决于它们的尺寸。然而，合成方法可能导致显著的尺寸多分散性，特别是在通过研磨获得的纳米金刚石（MND）中。因此，通过尺寸有效分选MND以确保均匀性并优化其在生物医学、传感或能源应用中的性能至关重要。该方法成功地将纳米金刚石分离为三个不同的尺寸范围：最小的约为10纳米，中间的为25纳米，最大的为35纳米。然后该方案扩展到来自同一来源的氢化MND，从而实现了相似尺寸群体的分离。
