Synchrotron x-ray scattering

Sayers, Z. Synchrotron X-Ray Scattering Studies of the Chromatin Fibre Structure, 145, 203-232 (1987). 

After electron transfer the complex of the two proteins is thought to be tightly bonded when unhydrolyzed ATP is present.35 This has allowed the direct observation and imaging of the complex at low resolution ( 1.5 nm) using rapid synchrotron X-ray scatter-... 

Archaeological Soils and Sediments Application of Microfocus Synchrotron X-ray Scattering, Diffraction, and Fluorescence Analyses in Thin-... 

Safinya, C.R. (1989) Rigid and fluctuating surfaces a series of synchrotron x-ray scattering studies of interacting stacked membranes. In T.Riste and D. Sherrington (eds) Phase Transitions in Soft Condensed Matter. Nato ASI Series B, 211, pp. 249-270. 

Figure 21.12 summarizes the results of the Tc determination for all the samples as a function of BaTiOs film thickness. Even the films containing only four monolayers of BaTiOs are ferroelectric with 70 K. Raman data demonstrate the dramatic effect of BaTiOs film thickness on T. The latter varies over a very broad range, from 70 to about 925 K (more than 500 K above the bulk BaTiOs value), as the film thickness increases from 1.6 to 10 nm, provided that the films remain fully (or nearly fully) strained. This is the case even for the 10-nm-thick films (less than 0.5% of the film volume is relaxed, as follows from synchrotron X-ray scattering data). 

Synchrotron X-ray scattering results indicated the presence of 180° domains in the 2.4, 4.0, and 10-nm-thick BaTiOs films capped with 10-nm SrTiOs. Similar to the results obtained for PbTiOs films [38, 156], diffuse intensity induced by the periodic nature of the ferroelectric 180° domains appeared in the scattering around the BaTiOs Bragg peaks [48]. In particular, for the 10-nm-thick capped film the diffuse intensity was absent at 950 K, but it was present at 870 K and below, yielding a Tc value consistent with Raman results. Similar diffuse scattering was observed for the 4.0- and 2.4-nm-thick capped samples at room temperature, while... 

The usefulness of synchrotron x-ray scattering to a wide range of electrode phenomena... 

Synchrotron X-Ray Scattering Studies of the Chromatin Fibre Structure... 

Complementary use, in future, of small angle solution synchrotron X-ray scattering methods with electron microscopy could contribute to the clarification of the path of the linker DNA. Thus further experiments seeking a universal model for the chromatin fibre structure need to be undertaken although the existence of such a universal structure is questionable. More importantly future investigations need to be aimed at imderstanding what relevance the structure of the fibre has to the control of DNA transcription and replication. 

We have used synchrotron X-ray scattering from solutions to study the assembly of biopolymers. The principles of the method are reviewed, and applications are given for the example of microtubule self-assembly. We show how different structural intermediates of the reaction can be distinguished. Assembly can take the form of a first-order approach to a steady state, but non-equilibrium phenomena are also observed. An example is the unique behavior of synchronized oscillations in microtubule assembly. 

A. Eurrer (ed.) (1998) Complementarity between Neutron and Synchrotron X-ray Scattering. Proceedings of the Sixth Summer School on Neutron Scattering, Zuoz, Switzerland. World Scientific Publishing Co. 

Mayer, A.C., Ruiz, R., Zhou, H., Headrick, R.L., Kazimirov, A., and Malliaras, G.G., Growth dynamics of pentacene thin films Real-time synchrotron x-ray scattering study, Phys. Rev. B, 73, 205307, 2006. 

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