Microscopy and Microanalysis Research-The Journal of The Microscopy Society of Thailand (Microsc. Microanal. Res.) is formerly known as Newsletter Electron Microscopy Society of Thailand (1984-1987), the Journal of the Electron Microscopy Society of Thailand (JEMST Vol. 1-21, 1987-2016) and the Journal of Microscopy Society of Thailand (JMST Vol. 22-29, 2008-2016). The journal title has been changed to Microsc. Microanal. Res. since January 2017 (Vol. 30, No.1, January-June 2017) to get more attention from international readers and authors. Microsc. Microanal. Res. publishes original research articles two volumes a year. Articles include the applications of microscopy and microanalysis to important problems in the fields of physical science and biological science. The originality and significance of the research and the quality of the microscopy or microanalysis involved are the criteria for acceptance of manuscripts. This issue contains eight papers, five of which are in the field of physical science and another three are in biological science. These works were selected from those presented in the 34th Annual Conference of the Microscopy Society of Thailand (MST34) which was held at the Grand Mercure Bangkok Fortune, Bangkok, Thailand, on Wed 31st May to Fri 2nd June 2017. The conference is co-organized by the Faculty of Engineering and the Faculty of Science, Chulalongkorn University and the Microscopy Society of Thailand. Torranin Chairuangsri Editor-in-chief