Comprehensive and quantitative analysis for controlling the physical/chemical states and particle properties of nanodiamonds for biological applications
Comprehensive and quantitative analysis for controlling the physical/chemical states and particle properties of nanodiamonds for biological applications
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DOI：
10.1039/c4ra16482b
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发表时间：
2015-01
期刊：
影响因子：
3.9
通讯作者：
Shingo Sotoma;K. Akagi;S. Hosokawa;R. Igarashi;H. Tochio;Y. Harada;M. Shirakawa
中科院分区：
文献类型：
--
作者：
Shingo Sotoma;K. Akagi;S. Hosokawa;R. Igarashi;H. Tochio;Y. Harada;M. Shirakawa
研究了热退火和空气氧化后纳米金刚石的物理/化学状态和性能，这是制备荧光纳米金刚石必不可少的过程。具体而言，使用X射线衍射（XRD）分析、透射电子显微镜（TEM）、元素分析、动态光散射、拉曼分析、X射线光电子能谱（XPS）、红外光谱以及自制荧光和ODMR显微镜测定失重、粒径、晶体质量、碳和氧的化学键状态、zeta电位、分散性以及荧光和光学检测磁共振（ODMR）特性。该研究重点关注适用于生物学研究的小尺寸纳米金刚石（∼50 nm）。所获得的结果对于控制金刚石纳米粒子的相互相关的物理/化学状态和性质应该有用。
The physical/chemical states and properties of nanodiamonds subjected to thermal annealing and air oxidation, which are indispensable processes for the preparation of fluorescent nanodiamonds, were investigated. Specifically, the weight loss, particle size, crystal quality, chemical bonding states of carbon and oxygen, zeta potential, dispersibility, and fluorescent and optically detected magnetic resonance (ODMR) properties were determined using X-ray diffraction (XRD) analysis, transmission electron microscopy (TEM), elemental analysis, dynamic light scattering, Raman analysis, X-ray photoelectron spectroscopy (XPS), IR spectroscopy, and a home-made fluorescence and ODMR microscope. The study focused on small-sized nanodiamonds (∼50 nm), which are applicable for biological research. The obtained results should be useful for controlling the mutually-related physical/chemical states and properties of diamond nanoparticles.