Japan Geoscience Union Meeting 2014

Presentation information

Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS36_1PM1] Interface- and nano-phenomena on crystal growth

Thu. May 1, 2014 2:15 PM - 4:00 PM 314 (3F)

Convener:*Yuki Kimura(Tohoku University), Hitoshi Miura(Graduate School of Natural Sciences, Department of Information and Biological Sciences, Nagoya City University), Katsuo Tsukamoto(Graduate School of Science, Tohoku University), Hisao Satoh(Naka Energy Research Laboratory, Mitsubishi Materials Corporation), Chair:jun nozawa(Institute for Materials Research, Tohoku University), Hitoshi Miura(Graduate School of Natural Sciences, Department of Information and Biological Sciences, Nagoya City University)

2:30 PM - 2:45 PM

[MIS36-10] Observation of admolecule on the crystal surface in liquid by non-contact atomic force microscopy

*Ken NAGASHIMA1 (1.Institute of Low Temperature Science, Hokkaido University, Japan)

Keywords:AFM, Crystal growth, Atomic resolution image, Admolecule, Protein crystal

The highest resolution AFM images are obtained by non-contact atomic force microscopy (NC-AFM). Fukuma et al. (2005) succeeded in obtaining true atomic resolution images by NC-AFM in spite of the liquid environment [1]. We are interested in the crystal growth process. However, previous NC-AFM studies were only about insoluble crystals in liquid. NC-AFM is not good at investigating the moving surface because NC-AFM is a very sensitive method for detecting weak interaction force. Therefore, we tried to observe several soluble crystals in liquid by NC-AFM at first. At first, we observed tetragonal lysozyme (110) face in saturated solution by using homebuilt Non-Contact AFM (NC-AFM). We could observe individual molecules on the lysozyme (110) face in liquid for the first time and determine the crystallographic position of each molecule [2]. In addition, we also observed admolecule and point defect on the lysozyme surface in liquid.Acknowledgments We thank Prof. S. Morita of Osaka University, M. Abe of Nagoya University, and Shimadzu Corporation for observation of AFM.[1] T. Fukuma et al., Appl. Phys. Lett. 87, 034101 (2005).[2] K. Nagashima et al., J. Vac. Sci. Technol. B 28, C4C11 (2010).