Low Dose X-Ray Speckle Visibility Spectroscopy Reveals Nanoscale Dynamics in Radiation Sensitive Ionic Liquids

Physical Review Letters
Jan VerwohltC Gutt

Abstract

X-ray radiation damage provides a serious bottleneck for investigating microsecond to second dynamics on nanometer length scales employing x-ray photon correlation spectroscopy. This limitation hinders the investigation of real time dynamics in most soft matter and biological materials which can tolerate only x-ray doses of kGy and below. Here, we show that this bottleneck can be overcome by low dose x-ray speckle visibility spectroscopy. Employing x-ray doses of 22-438 kGy and analyzing the sparse speckle pattern of count rates as low as 6.7×10^{-3}  per  pixel, we follow the slow nanoscale dynamics of an ionic liquid (IL) at the glass transition. At the prepeak of nanoscale order in the IL, we observe complex dynamics upon approaching the glass transition temperature T_{G} with a freezing in of the alpha relaxation and a multitude of millisecond local relaxations existing well below T_{G}. We identify this fast relaxation as being responsible for the increasing development of nanoscale order observed in ILs at temperatures below T_{G}.

References

Sep 16, 1991·Physical Review Letters· van Megen WP N Pusey
Jan 11, 2007·Journal of Synchrotron Radiation·Edward H SnellMark J van der Woerd
Mar 29, 2007·The Journal of Physical Chemistry. B·Alessandro TrioloEmanuela Di Cola
Jun 17, 2008·Journal of Synchrotron Radiation·Andrei FluerasuAnders Madsen
Jul 28, 2009·Nature Materials·Michael LeitnerGero Vogl
Mar 1, 2009·Journal of Electron Spectroscopy and Related Phenomena·M R HowellsD Starodub
Dec 12, 2012·Physical Review Letters·S O HruszkewyczG B Stephenson
Feb 9, 2013·The Journal of Physical Chemistry. B·Maiko KofuOsamu Yamamuro
Feb 16, 2013·Journal of Synchrotron Radiation·Curt DeCaroNicholas Karonis
May 20, 2014·Nature Communications·B RutaF Nazzani
Sep 2, 2014·Journal of Synchrotron Radiation·Mikael ErikssonChristoph Quitmann
Sep 2, 2014·Journal of Synchrotron Radiation·Oleg G Shpyrko
Jun 2, 2015·Chemical Reviews·Robert HayesRob Atkin
Dec 24, 2015·The Journal of Chemical Physics·Maiko KofuOsamu Yamamuro
Jun 24, 2017·Scientific Reports·B RutaW Kob

❮ Previous
Next ❯

Citations

Sep 7, 2019·Journal of Synchrotron Radiation·Johannes MöllerAnders Madsen
Aug 25, 2020·Advanced Materials·Tomas RosénL Daniel Söderberg
Sep 2, 2020·Physical Chemistry Chemical Physics : PCCP·Fivos Perakis, Christian Gutt
Nov 9, 2018·Journal of Synchrotron Radiation·T ZinnT Narayanan
Sep 5, 2018·Journal of Synchrotron Radiation·Qingteng ZhangAlec R Sandy
Nov 5, 2020·Journal of Synchrotron Radiation·Rajan PlumleyDiling Zhu
Feb 11, 2021·Journal of Synchrotron Radiation·Yanwen SunDiling Zhu
Mar 3, 2021·ACS Nano·Carlos Sanchez-CanoWolfgang J Parak
Mar 3, 2021·Journal of Synchrotron Radiation·Laurence B LurioEric M Dufresne

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.