ON account of the present great interest in the interpretation of X-ray patterns for amorphous substances (broad haloes) it seems desirable to present in a preliminary way a few of the observations ...

Understanding how chemical reactions happen on tiny crystals in liquid solutions is central to a variety of fields, including materials synthesis and heterogeneous catalysis, but obtaining such an ...

IT has been observed that sulphur may be kept, with a little care, in the supercooled liquid state at the ordinary room temperatures (25°–30° C.) in the form of small globules on clean glass surfaces.

Two independent groups of physicists have found a new way to get high-definition glimpses of the innards of living cells. The technique uses X-ray diffraction microscopy on cells frozen below –170 °C, ...

X-ray powder diffraction (XRD) is a powerful structural characterization tool that is essentially a two point probe which measures the distance between all pairs of atoms within the diffraction volume ...

Jun Wu, Minxue Tang, Lingrong Zhao, Pengfei Zhu, Tao Jiang, Xiao Zou, Liang Hong, Sheng-Nian Luo, Dao Xiang, Jie Zhang Proceedings of the National Academy of Sciences of the United States of America, ...

X-ray techniques have been used for decades by authorities to prevent crime and keep people safe. Perhaps their most well-known use is for the detection of dangerous and banned items or substances, ...

A group of physicists and biologists in the US has extended the power of X-ray diffraction for imaging biological specimens. Jianwei Miao of the University of California, Los Angeles and colleagues ...

Understanding how chemical reactions happen on tiny crystals in liquid solutions is central to a variety of fields, including materials synthesis and heterogeneous catalysis, but obtaining such an ...

Scientists have developed a new technique that combines the power of microscale 'tractor beams' with high-powered X-rays, enabling them to see and manipulate crystals freely floating in solution.