Temperature-dependent surface CO stretching frequency investigations of functionalized nanodiamond particles

被引：10

作者：

Chu, C. -D. ^{[1
]}

Perevedentseva, E. ^{[1
,2
]}

Yeh, V. ^{[1
]}

Cai, S. -J. ^{[1
]}

Tu, J. -S. ^{[1
]}

Cheng, C-L ^{[1
]}

机构：

[1] Natl Dong Hwa Univ, Dept Phys, Hualien 97401, Taiwan

[2] RAS, PN Lebedev Phys Inst, Moscow 117901, Russia

来源：

关键词：

Nanodiamond; Bio applications; CO stretching; Temperature-dependent; FLUORESCENT NANODIAMONDS; THERMAL-STABILITY; CARBON NANOTUBES; DIAMOND; HYDROGEN; CH; IMMOBILIZATION; SPECTROSCOPY; RELAXATION; COMPONENT;

D O I：

10.1016/j.diamond.2008.10.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface properties of nanodiamonds play a decisive role in many nanodiamond applications, particularly in bio- and medical applications. The surface functional groups largely determine the interactions and conjugations between nanodiamonds and biomolecules. In this work, the spectroscopic properties of surface-carboxylated nanodiamonds with an average diameter of 100 nm are investigated, focusing on the temperature dependence of the surface C=O stretching frequency. The C=O stretching frequency was found to be sensitive to temperature. Observed water molecules from temperature desorption confirmed that the C=O stretching frequency shifts were associated with the formation of hydrogen bonds. Other molecules were also observed during the temperature treatments, associated with desorption of loosely bonded surface atoms. This work provides useful information on the surface group interactions for nanodiamond applications in nanobiotechnology. (C) 2008 Elsevier B.V. All rights reserved

引用

页码：76 / 81

页数：6

共 37 条

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