Results 101 to 110 of about 97,747 (236)
Stereo- and Regiocontrolled Syntheses of Exomethylenic Cyclohexane β-Amino Acid Derivatives
Molecules, 2015 Cyclohexane analogues of the antifungal icofungipen [(1R,2S)-2-amino-4-methylenecyclopentanecarboxylic acid] were selectively synthesized from unsaturated bicyclic β-lactams by transformation of the ring olefinic bond through three different regio- and ...
Loránd Kiss +4 more
doaj +1 more source
A molecular mechanism for the water-hydroxyl balance during wetting of TiO2 [PDF]
arXiv, 2013 We show that the formation of the wetting layer and the experimentally observed continuous shift of the H2O-OH balance towards molecular water at increasing coverage on a TiO2(110) surface can be rationalized on a molecular level. The mechanism is based on the initial formation of stable hydroxyl pairs, a repulsive interaction between these pairs and ...
arxiv
Label-free SERS Discrimination of Proline from Hydroxylated Proline at Single-molecule Level Assisted by a Deep Learning Model [PDF]
arXivDiscriminating the low-abundance hydroxylated proline from hydroxylated proline is crucial for monitoring diseases and eval-uating therapeutic outcomes that require single-molecule sensors. While the plasmonic nanopore sensor can detect the hydrox-ylation with single-molecule sensitivity by surface enhanced Raman spectroscopy (SERS), it suffers from ...
arxiv
MetabolitesThe synthetic cytokinin forchlorfenuron (FCF), while seemingly presenting relatively low toxicity for mammalian organisms, has been the subject of renewed scrutiny in the past few years due to its increasing use in fruit crops and potential for ...
Charles M. Moreno +5 more
doaj +1 more source
International Journal of Nanomedicine, 2019 Yongbing Sun,1 Jianping Gong,1 Yi Cao2 1National Engineering Research Center for Solid Preparation Technology of Chinese Medicines, Jiangxi University of Traditional Chinese Medicines, Jiangxi, Nanchang 330006, People’s Republic of China; 2Key ...
Sun Y, Gong J, Cao Y
doaj
FermentationHydroxylation reaction is a significant source of structural diversity in natural products (NPs), playing a crucial role in improving the bioactivity, solubility, and stability of natural product molecules.
Chang Sun +7 more
doaj +1 more source
Hydroxylation-driven surface reconstruction at the origin of compressive-to-tensile stress transition in metal oxide nanoparticles [PDF]
arXivExperiments reveal negative (non-Laplacian) surface stresses in metal oxide nanoparticles, partly associated with humidity during fabrication and annealing. Using a neural network interatomic potential for MgO, we prove that water adsorption induces surface hydroxylation, shifting facets from {100} to {110} to {111} and switching the average surface ...
arxiv
Hydroxylation of 5-Methylcytosine by TET1 Promotes Active DNA Demethylation in the Adult Brain
Cell, 2011 Junjie U. Guo +4 more
semanticscholar +1 more source
Environment of Solvent-Controlled Chemoselective Asymmetric Hydroperoxidation and Hydroxylation of 5-Pyrazolone Ketimines Catalyzed by Bifunctional Organocatalysts. [PDF]
ACS OmegaLin X, Long B, Lei H, Liu TX, Yuan Z.
europepmc +1 more source