Mechanical properties of yeast cells at different cell sizes, environmental conditions and growth phases using environmental-SEM nanomanipulator / by Mohd. Ridzuan Ahmad, author, Masahiro Nakajima, author, Seiji Kojima, author, Michio Homma, author, Toshio Fukuda, author, Proceeding of the 2007 IEEE/RSJ International Conference on Intelligent Robotics and Systems (IROS 2007) (2007 : San Diego, USA)