📢 STOE User Talk
Using the example of photoinduced linkage isomerism, it is shown how the combination of single-crystal XRD with in-situ static and transient absorption spectroscopy enables the investigation of photoswitching mechanisms and structure–property relationships.
📅 29 January, 15:00 CET
👉 Registration: https://stoe.clickmeeting.com/wenger-schaniel/register
#STOEUserTalk #Crystallography #Photoswitching #FunctionalMaterials
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Nynke A. Vepřek and colleagues (#TraunerLab) describe photoswitchable actin destabilisers activated by blue light.
#preprint highlighted by @zhanghe_goh
#preLight 👉 https://prelights.biologists.com/highlights/optical-control-of-g-actin-with-a-photoswitchable-latrunculin/
`This report offers fundamental tools and methods for experimental execution and #theoretical analysis of #ultrafast #crystallography. We emphasize the use of phase-space representation of the density matrix using the #Wigner transform to visualize the coherent motions that are seen...These methods are generally applicable, and their purpose is fully demonstrated with this example of ultrafast #structural #dynamics of a reversibly #photoswitching #fluorescent #protein`
Pump–probe measurements conventionally achieve femtosecond time resolution for X-ray crystallography of reactive processes, but the measured structural dynamics are complex. Using coherent control techniques, we show that the ultrafast crystallographic differences of a fluorescent protein are dominated by ground-state vibrational processes that are unconnected to the photoisomerization reaction of the chromophore.
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