Results 31 to 40 of about 11,176 (214)

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

FEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

FEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno, Shota Yamazaki, Hiromichi Hoshina, Masahiko Harata   +3 more
wiley   +1 more source

Ultrafast Molecular Dynamics Studied Via Extreme-Ultraviolet Transient Absorption Spectroscopy [PDF]

, 2014
Recent developments of isolated, sub-femtosecond light pulses generated via upconversion of commercially available 800 nm light sources have allowed for the study of chemical dynamics in the tens to few hundred attosecond (1 attosecond = 1 as = 1 x 10-18
Pymer, Allison Kay
core  

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

Near-ultraviolet detections of four dwarf nova candidates in the globular cluster 47 Tucanae [PDF]

, 2020
We investigate near-ultraviolet variability in the Galactic globular cluster (GC) 47 Tucanae (47 Tuc). This work was undertaken within the GC sub-project of the Transient UV Objects project, a programme which aims to find and study transient and strongly
Modiano, D., Wijnands, R., David Modiano, Parikh, A.S., Rudy Wijnands, Aastha S. Parikh   +5 more
core   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

Nonlinear XUV signal generation probed by transient grating spectroscopy with attosecond pulses [PDF]

, 2019
Nonlinear spectroscopies are utilized extensively for selective measurements of chemical dynamics in the optical, infrared, and radio-frequency regimes.
Gaarde, Mette B, Warrick, Erika R, Gaarde, Mette B., Warrick, Erika R., Leone, Stephen R, Neumark, Daniel M, Neumark, Daniel M., Leone, Stephen R., Fidler, Ashley P., Schafer, Kenneth J., Marroux, Hugo JB, Marroux, Hugo J.B., Camp, Seth J, Camp, Seth J., Schafer, Kenneth J, Fidler, Ashley P, Bloch, Etienne   +16 more
core   +1 more source

Ultrafast strong-field dissociation of vinyl bromide: An attosecond transient absorption spectroscopy and non-adiabatic molecular dynamics study [PDF]

, 2021
Attosecond extreme ultraviolet (XUV) and soft x-ray sources provide powerful new tools for studying ultrafast molecular dynamics with atomic, state, and charge specificity.
Thomas Schnappinger, Stephen R. Leone, Regina de Vivie-Riedle, Yuki Kobayashi, Daniel M. Neumark, Florian Rott, Timmers, Henry, Kobayashi, Yuki, Leone, Stephen R, Neumark, Daniel M, Kristina F. Chang, Schnappinger, Thomas, Reduzzi, Maurizio, Chang, Kristina F, Maurizio Reduzzi, de Vivie-Riedle, Regina, Henry Timmers, Rott, Florian   +17 more
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source