Results 111 to 120 of about 3,847 (182)

The Conformational Switches of a Bacterial Light‐Driven Sodium Pump Characterized by Time‐Resolved Resonance Raman Spectroscopy

ChemPhysChem, Volume 27, Issue 7, 14 April 2026.
The microbial retinal protein KR2 (Krokinobacter eikastus) is a light‐driven outward Na+ pump, which is coupled to the photocycle of the chromophore. Using time‐resolved continuous‐wave pump‐probe resonance Raman spectroscopy, the operational switches for ion transport are identified, which are the transitions to a specific Schiff base sub‐state and ...
Anna Lena Schäfer, Arita Silapetere, Peter Hegemann, Katrina T. Forest, Uwe Kuhlmann, Peter Hildebrandt   +5 more
wiley   +1 more source

Elucidating Thermally Enhanced Luminescence in Au(III) Complexes for High‐Performance Organic Light Emitting Diodes

Advanced Optical Materials, Volume 14, Issue 15, 17 April 2026.
We report a series of Au(III) complexes incorporating asymmetric carbazolyl motifs that regulate co‐facial distance between donor and acceptor moieties. Femtosecond transient absorption and density functional theory computation analyses reveal rapid reverse internal upconversion from the lowest triplet state (T1) to a thermally accessible higher‐lying ...
Hsin‐Hung Kuo, Sudhir Kumar, Rituparno Chowdhury, Hung Tan Pham, Jiwoo Oh, Laura Rupp, Marc Eduard Usteri, Chi Chi Wu, Pi‐Tai Chou, Richard H. Friend, Daniel Escudero, Chih‐Jen Shih   +11 more
wiley   +1 more source

Appraising protein conformational changes by resampling time-resolved serial x-ray crystallography data

Structural Dynamics
With the development of serial crystallography at both x-ray free electron laser and synchrotron radiation sources, time-resolved x-ray crystallography is increasingly being applied to study conformational changes in macromolecules.
Adams Vallejos, Gergely Katona, Richard Neutze   +2 more
doaj   +1 more source

MXene‐Based Self‐Powered Flexible Sensors: Advances in Fabrication, Sensing Mechanisms, and Density Functional Theory‐Driven Performance Optimization

Advanced Energy and Sustainability Research, Volume 7, Issue 4, April 2026.
MXene‐based self‐powered textile sensors are presented as an emerging platform for integrated energy harvesting and multifunctional sensing in wearable electronics. This review systematically discusses MXene synthesis, DFT‐driven insights into properties, nanogenerator‐based device architectures, and scalable textile integration strategies, while ...
Md. Mahfuzur Rahman, Rifat Sarker Apu, Anik Kumar Das, Md. Farhad Hossain, Mohammad Kamrul Hasan, Rubaiyet I. Haque   +5 more
wiley   +1 more source

On the Near‐Infrared Photoluminescence and High‐Pressure Physical Chemistry of Gold Nanoclusters

Aggregate, Volume 7, Issue 4, April 2026.
Recent studies show that introducing a rigid structure, a “viscous” environment from solid film, aggregation in the solid state, low temperature, and high pressure can enhance the PL of Au nanoclusters. Herein, we generate an underlying principle of these strategies that the key to enhancing the PL of Au nanoclusters lies in the suppression of the non ...
Yuqing Yao, Qi Li
wiley   +1 more source

Application of Micro-Tubing Reeling System to Serial Femtosecond Crystallography

Photonics
Microcrystal delivery instruments are pivotal to performing serial femtosecond crystallography experiments at the XFEL facilities. We present a novel sample delivery technique based on a micro-tubing reeling system (MRS).
Jihan Kim, Sehan Park, Yunje Cho, Jaehyun Park   +3 more
doaj   +1 more source

Serial crystallography on in vivo grown microcrystals using synchrotron radiation

IUCrJ, 2014
Crystal structure determinations of biological macromolecules are limited by the availability of sufficiently sized crystals and by the fact that crystal quality deteriorates during data collection owing to radiation damage. Exploiting a micrometre-sized
Cornelius Gati, Gleb Bourenkov, Marco Klinge, Dirk Rehders, Francesco Stellato, Dominik Oberthür, Oleksandr Yefanov, Benjamin P. Sommer, Stefan Mogk, Michael Duszenko, Christian Betzel, Thomas R. Schneider, Henry N. Chapman, Lars Redecke   +13 more
doaj   +1 more source

Recent results in time resolved serial femtosecond crystallography at XFELs

Current Opinion in Structural Biology, 2020
Time-resolved serial femtosecond crystallography (tr-SFX) methods exploit slurries of crystalline samples that range in size from hundreds of nanometers to a few tens of micrometers, at near-physiological temperature and pressure, to generate atomic resolution models and probe authentic function with the same experiment. 'Dynamic structural biology' is
openaire   +2 more sources

Coherence of femtosecond single electrons exceeds biomolecular dimensions

, 2013
Time-resolved diffraction and microscopy with femtosecond electron pulses provide four-dimensional recordings of atomic motion in space and time. However, the limited coherence of electron pulses, reported in the range of 2–3 nm, has so far prevented the
Baum, P., Kirchner, F., Krausz, F., Lahme, S.   +3 more
core   +1 more source

Development of Container Free Sample Exposure for Synchrotron X-ray Footprinting. [PDF]

, 2020
The method of X-ray footprinting and mass spectrometry (XFMS) on large protein assemblies and membrane protein samples requires high flux density to overcome the hydroxyl radical scavenging reactions produced by the buffer constituents and the total ...
Chen, Yan, DePonte, Daniel P, Gupta, Sayan, Petzold, Christopher J, Ralston, Corie Y   +4 more
core   +1 more source