Fig' 1 Nature 417, 1392002

1
Real Time High Resolution X-Ray Microscopy
Observation of Whisker Like Zn Grown on the
Surface of H2 Bubbles
High resolution, high speed radiology allows us
to monitor the electrodeposition process in real
time and realistic electrochemical environment.
The discovery of a special growth phenomenon
demonstrated the first time that metal
deposition can occur on the seemingly
nonconducting hydrogen bubbles.(Fig. 1) This
observation does not only prove that the hydrogen
bubble surface in this case is conducting, but
also provide evidence of the nature of one
notorious type of defects often compromises the
film quality in electrodeposition. This work was
published in Nature 2002. Our work using similar
approach in high speed animal imaging was also
reported by Nature in 2004. Fig. 2 show the
tomography reconstructed 3D model of a fossil
embryo cluster frozen in time exactly at a 2-4
fold cell cleavage stage. The nondestructive
high resolution 3D imaging allows us to identify
the special division mode in cell and prove that
such type of cell differentiation already existed
540 million years ago.
Fig. 1 - Nature 417, 139(2002)
What a contrast!Nature Views News Feb. 26,
2004
Fig. 2 - Science, 312 p.1644, June 16, 2006