Results 41 to 50 of about 404,480 (299)

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Parametric resonance of a two-dimensional electron gas under bichromatic irradiation

, 2004
In an ultrahigh mobility 2D electron gas, even a weak nonparabolicity of the electron dispersion, by violating Kohn's theorem, can have a drastic effect on dc magnetotransport under ac drive. We study theoretically the manifestation of this effect in the
Joas, C., Raikh, M. E., von Oppen, F.
core   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Irradiation effects on microstructure, mechanical properties, and lead-bismuth eutectic corrosion resistance of alumina coating

Journal of Materials Research and Technology, 2023
A comprehensive evaluation including microstructure, mechanical properties, and lead-bismuth eutectic corrosion resistance of amorphous alumina coatings after different doses of Au2+ irradiation was done using X-ray diffraction, scanning electron ...
Yilong Zhong, Qingyu Li, Yanli Zhao, Yi Zhou, Wei Zhang, Jian Yang, Changda Zhu, Jiuguo Deng, Qingsong Chen, Sha Zhao, Hao Liu, Ning Liu, Xi Qiu, Jijun Yang   +13 more
doaj   +1 more source

Effect of solar cell structure on the radiation resistance of an InP solar cell [PDF]

E3S Web of Conferences, 2020
Effects of electron irradiation-induced deep level defects have been studied on both n/p and p/n Indium Phosphide (InP) solar cells with very thin emitters.
Mazouz Halima, Belghachi Abderrahmane, Logerais Pierre-Olivier   +2 more
doaj   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

FEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Effect of High Energy Electron Beam Irradiation on Cell Wall Degradation Related Enzyme Activities and Gene Expressions of Kiwifruit

Shipin gongye ke-ji, 2022
‘Hayward’ kiwifruits were used as the test materials to be irradiated with high energy electron beams at doses of 0 (control), 300, 400 and 500 Gy. The fruits were stored at 0~1 ℃, RH 90%~95% for 90 d.
Ruijuan LI, Shuxia YANG, Dan WANG, Tianzi HUANG, Jin LIANG, Lu ZHANG, Anwei LUO   +6 more
doaj   +1 more source

Effect of electron irradiation on superconductivity in single crystals of Ba(Fe$_{1-x}$Ru$_{x}$)$_2$As$_2$ ($x=$0.24) [PDF]

, 2014
A single crystal of isovalently substituted Ba(Fe$_{1-x}$Ru$_{x}$)$_2$As$_2$ ($x=0.24$) was sequentially irradiated with 2.5 MeV electrons up to a maximum dose of $2.1 \times 10^{19}$ electrons/cm^2.
Bud'ko, Sergey, Canfield, Paul, Canfield, Paul, Hirschfeld, P., Kończykowski, M., Mishra, V., Prozorov, Ruslan, Tanatar, Makariy, Thaler, Alexander   +8 more
core   +7 more sources

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Design and performance of a vacuum-UV simulator for material testing under space conditions [PDF]

, 2013
This paper describes the construction and performance of a VUV-simulator that has been designed to study degradation of materials under space conditions.
Geppert, Ulrich, Renger, Thomas, Sznajder, Maciej, Thornagel, Reiner, Witzke, Andreas   +4 more
core   +2 more sources