Results 121 to 130 of about 3,526,732 (300)

MXene membrane with directionally functionalized channel entrances for enhanced ion selectivity and permeability

Nature Communications
Ion-separation membranes that combine high selectivity with high permeability are important for various practical applications. Molecular functionalization of sub-nanochannel membranes is widely used to improve ion separation selectivity; however, it ...
Hang Yu, Rongming Xu, Jiachun Ren, Ling Yuan, Zheng Cui, Weiming Zhang, Zhuyuan Wang, Lu Lv, Xiwang Zhang, Bingcai Pan   +9 more
doaj   +1 more source

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

FEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti, Markus J. T. Ojanen, Mataleena Parikka, Otto Kauko, Mika Rämet, Vesa P. Hytönen   +5 more
wiley   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Characterization of Lithium Ion Transport Via Dialysis Process [PDF]

Iranian Journal of Chemical Engineering, 2006
Dialysis is a membrane based separation process in which the concentration gradient across the membrane is the driving force resulting in a flow of material from one side of the membrane to the other. In this study membranes (Accurel, Celgard, GVHP, PM30
doaj  

Environmental concentrations of N-nitrosodiethylamine (NDEA) disturb the Ca2 + and K+ homeostasis in the gills and epidermis of mosquitofish (Gambusia affinis)

Ecotoxicology and Environmental Safety
N-nitrosodiethylamine (NDEA), a nitrogenous disinfection by-product, is notorious for its ubiquitous presence in the environment and its carcinogenic properties. However, its impact on ion homeostasis in aquatic organisms remains underexplored.
Xiaoyu Yan, Wenwen Chen, Xiaohong Song, Yun Ma, Haiqin Wang, Tao Yang, Yanpeng Liang, Honghu Zeng   +7 more
doaj   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

FEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan, Amias Alstrom‐Moore, Gary W Black   +2 more
wiley   +1 more source

Integrating First Principles Calculations and Machine Learning to Study the ReNiO2/Ti3C2 Heterojunctions for Sodium Ion Batteries

Advanced Physics Research
Due to the large size of sodium ions and their slow redox kinetics in electrochemical processes, the sodium ion batteries currently are still far from satisfactory.
Yuanyuan Cui, Chengyu Zhang, Luxin Niu, Jiao Zheng, Xin Liu, Sihan Yang, Yanfeng Gao   +6 more
doaj   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

FEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn, Artur Osyczka, Marcin Sarewicz   +2 more
wiley   +1 more source

A covalent organic framework membrane with highly selective and permeable artificial sodium channels via ion recognition

Nature Communications
Biological sodium channels efficiently discriminate between same–charge ions with similar hydration shells. However, achieving precise ion selectivity and high throughput in artificial ion channel fabrication remains challenging.
Jing Wang, Junwei Zhang, Pengrui Jin, He Wen, Ziwen Dai, Hao Tan, Shushan Yuan, Jiakuan Yang, Menachem Elimelech   +8 more
doaj   +1 more source

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria

FEBS Open Bio, EarlyView.
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Akiyo Yamada, Takaaki Tanaka, Manaka Uehara, Keigo Nakano, Ken Morishima, Rintaro Inoue, Masaaki Sugiyama, Masafumi Yohda   +7 more
wiley   +1 more source