Threads made from organic molecules linked by strong covalent bonds were used to weave a 3D covalent organic framework with unusual dynamical and mechanical properties. This molecular weaving method will enable the production of materials with increased precision and functionality. Read more »
Foreign DNA Capture during CRISPR–Cas Adaptive Immunity
Using macromolecular crystallography at Beamline 8.3.1 at the ALS, Berkeley researchers discovered how CRISPR/Cas captures foreign DNA for the bacterial immune system. Read more »
On the Road to ANG Vehicles with Increased Driving Ranges
An international team of researchers, using gas adsorption studies, in situ powder x-ray diffraction, and single-crystal x-ray diffraction, showed that there is a way to develop a new flexible metal–organic framework (MOF) material for enhanced natural gas storage on vehicles. Read more »
A New Pathway for Radionuclide Uptake
Scientists have reported a major advance in understanding the biological chemistry of radioactive metals, opening up new avenues of research into strategies for remedial action in the event of possible human exposure to nuclear contaminants. Read more »
Phonon Polariton Behavior in 2D Materials
Synchrotron infrared nanospectroscopy (SINS) was used to study the behavior of phonon polaritons in ultrathin crystals of hexagonal boron nitride. The results pave the way towards engineering infrared-light photonic nanodevices and expand our understanding of polariton behavior in low-dimensional nanomaterials. Read more »
Following the Morphology Formation In Situ in Printed Active Layers for Organic Solar Cells
Time-resolved scattering measurements reveal the complete solidification process inside the photoactive layer of an organic solar cell. With an industrial slot-die coater integrated into the beamline, aggregation and crystallization processes can be tracked to reveal the structure-function relationships in the final thin film. Read more »
ALSNews Vol. 368
ALSNews Monthly Newsletter of the Advanced Light Source, Lawrence Berkeley National Laboratory Weyl Fermions Discovered After 85 Years Weyl fermions, elusive massless particles first theorized 85 years ago, have now been detected as emergent quasiparticles in synthetic crystals of the semimetal TaAs. The discovery could allow for the nearly free and efficient flow of electricity,Read More Read more »
ALSNews Vol. 367
ALSNews Monthly Newsletter of the Advanced Light Source, Lawrence Berkeley National Laboratory A Designed Protein Maps Brain Activity Scientists designed and validated via crystallographic studies a fluorescent protein that allows the permanent marking of active brain cells. The protein was then used to study live changes via fluorescence in the active nerve cells in brainsRead More Read more »
Misfolded opsin mutants display elevated β-sheet structure
Mutations in rhodopsin can cause misfolding and aggregation of the receptor, which leads to retinitis pigmentosa, a progressive retinal degenerative disease. Förster resonance energy transfer (FRET) and Fourier transform infrared (FTIR) microspectroscopy were utilized to probe within cells the structures formed by G188R and P23H opsins. Read more »
Wolfgang Eberhardt on Light Sources: Getting the Balance Right
Wolfgang Eberhardt, an internationally respected expert on synchrotrons, is wrapping up an extended visit to the ALS. Between experiments furthering our understanding of organic solar-cell materials, he discusses the relative merits of diffraction-limited storage rings (such as the proposed ALS upgrade, ALS-U) and free-electron laser facilites. Read more »
- « Previous Page
- 1
- …
- 74
- 75
- 76
- 77
- 78
- …
- 80
- Next Page »