Results 31 to 40 of about 1,570,001 (303)

Nitrene Transfer Catalyzed by a Non-Heme Iron Enzyme and Enhanced by Non-Native Small-Molecule Cofactors [PDF]

, 2019
Transition-metal catalysis is a powerful tool for the construction of chemical bonds. Here we show that a non-heme iron enzyme can catalyze olefin aziridination and nitrene C–H insertion, and that these activities can be improved by directed evolution ...
Arnold, Frances H., Goldberg, Nathaniel, Knight, Anders M., Zhang, Ruijie   +3 more
core   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Smart emulsion system driven by light‐triggered ionic liquid molecules and its application in eco‐friendly water‐saving dyeing

Smart Molecules
The smart emulsification and demulsification system with the light response is a useful tool in various industries, including green chemistry, catalytic reaction, pharmaceuticals, and environmental remediation.
Aiqin Gao, Jiahui Liang, Mingxiao Jing, Xiyu Song, Aiqin Hou, Kongliang Xie   +5 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Topological mechanochemistry of graphene

, 2013
In view of a formal topology, two common terms, namely, connectivity and adjacency, determine the quality of C-C bonds of sp2 nanocarbons. The feature is the most sensitive point of the inherent topology of the species so that such external action as ...
A Hemmasizadeh, A Sakhaee-Pour, A Tobolski, AWK Jong de, C Jin, C Li, EA Nikitina, EF Sheka, EF Sheka, EF Sheka, EF Sheka, EF Sheka, EF Sheka, EF Sheka, F Guo, F Liu, G Lier Van, GMJ Schmidt, H Bu, J-L Tsai, JJP Stewart, K Hashemnia, K Kudin, K Tashiro, LR MacGillivray, M Hasegawa, M Topsakal, MJS Dewar, MM Shokrieh, NA Popova, RB Woodward, RE Merrifield, V Enkelmann, VD Khavryutchenko, VV Boldyrev, X Wei, Y Gao, Y Guo   +37 more
core   +1 more source

Chemical Raman Enhancement of Organic Adsorbates on Metal Surfaces [PDF]

, 2010
Using a combination of first-principles theory and experiments, we provide a quantitative explanation for chemical contributions to surface-enhanced Raman spectroscopy for a well-studied organic molecule, benzene thiol, chemisorbed on planar Au(111 ...
A. T. Zayak, A. M. Michaels, H. Choo, J. B. Neaton, J. Bokor, K. B. Biggs, M. Cardona, P. J. Schuck, S. Cabrini, Y. S. Hu   +9 more
core   +2 more sources

Chemical Modifications of Ribosomal RNA

, 2022
AbstractCellular RNAs in all three kingdoms of life are modified with diverse chemical modifications. These chemical modifications expand the topological repertoire of RNAs, and fine-tune their functions. Ribosomal RNA in yeast contains more than 100 chemically modified residues in the functionally crucial and evolutionary conserved regions.
Sunny, Sharma, Karl-Dieter, Entian
openaire   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Improved Lignin Polyurethane Properties with Lewis Acid Treatment [PDF]

, 2012
Chemical modification strategies to improve the mechanical properties of lignin-based polyurethanes are presented. We hypothesized that treatment of lignin with Lewis acids would increase the concentration of hydroxyl groups available to react with ...
Chung, Hoyong, Washburn, Newell R.
core   +1 more source