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| Type |
Symposium |
| Area |
Analytical Technologies to Improve Human Health |
| Room No. |
Room 202 |
| Time |
FRI 14:55-15:20 |
| Code |
ANAL2-2 |
| Subject |
Electron microscopy study of nanomaterials |
| Authors |
Young Heon Kim
Graduate School of Analytical Science and Technology, Chungnam National University, Korea |
| Abstract |
The use of nanomaterials and related materials increases with the advance in the field of nanotechnology and the development of new industrial applications of nanoobjects. Although many scientific studies have been conducted for evaluating health and environmental risks of nanomaterials and related compounds, there are many controversial issues to be discussed. The starting point of the study on the toxity and/or safety of nanomaterials is to precisely define the physicochemical properties.
Electron microscopy (EM) techniques, based on scanning electron microscope and transmission electron microscope, have been found to be an indispensible tool for characterizing the physicochemical properties of nanomaterials due to its excellent spatial and energy resolutions. There have been many activities to establish standards for the measurement of nanoparticle size distribution by using various EM techniques. The morphology of nanomaterials can be also deduced through imaging and diffraction techniques in the EM. In addition, advanced in-situ TEM techniques enables us to explore unique and specific properties of individual nano-objects in the instrument.
In this talk, I will show the research activities to develop traceable and reliable procedures for the measurement of particle size distribution by TEM. The results of inter-laboratory comparison studies for standardization, conducted in the various frameworks and/or programs, are introduced. Finally, the advanced TEM techniques to investigate the fascinating properties of nanomaterials is briefly demonstrated. |
| E-mail |
y.h.kim@cnu.ac.kr |
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123rd General Meeting of the KCS