Results 71 to 80 of about 65,551 (284)
, 2022 A SiO2-coumarin nanohybrid was investigated for its Cu(II) sensing performance in aqueous media, and in comparison with the Cu(II)-selective coumarin used alone. Fluorescence of both coumarin itself and the nanohybrid, λex/λem 435/481 nm, was selectively
De Silva, S +8 more
core +1 more source
Advanced Science, EarlyView.This study unveils a novel antibacterial mechanism against MRSA, in which the compound Py‐27 selectively targets and inhibits aspartate transcarbamoylase (ATCase), a key enzyme in pyrimidine synthesis. This inhibition disrupts DNA replication, induces oxidative damage, leading to potent bactericidal activity.
Xiaorong Yang +11 more
wiley +1 more source
Journal of Radiation Research and Applied Sciences, 2016 FTIR spectroscopy has been in use broadly to study microscopic areas in polymers for the last years. The FTIR transmission spectra of coumarin laser dye, polystyrene and coumarin doped polystyrene films with different doping ratio of coumarin solution ...
Mahasin F. Hadi Al-Kadhemy +2 more
doaj +1 more source
Advanced Science, EarlyView.In this study, MPDA NPs were engineered to encapsulate CTT. To further increase renal accumulation of CTT, L‐serine was conjugated to the surface of the MPDA nanoparticles (CTT/MPDA@L‐Ser NPs). CTT/MPDA@L‐Ser NPs inhibit DPEP1 activity, thereby restoring ferroptosis defense mechanisms through upregulation of GPX4 and SLC7A11 expression, ultimately ...
Wanbing Qin +12 more
wiley +1 more source
, 2022 In this open ended experiment, students have to determine the identity of the brominated product when a coumarin is treated with N-bromosuccinimide (NBS). The product is purified via column chromatography and analyzed by NMR.
Loy, Rebecca
core +1 more source
Advanced Science, EarlyView.This study reveals that long non‐coding RNAs represent important regulatory components underlying pear domestication and improvement. Integrative multi‐omics analyses identify selected lncRNAs associated with fruit traits, while functional validation uncovers a lignin‐related lncRNA, lncRNA‐pys, that promotes lignin accumulation.
Bobo Song +9 more
wiley +1 more source
Synthesis and Co-ordination chemistry of Allosteric systems and Sensors for Zinc Metal Ions [PDF]
The ditopic ligand, L1, contains both a bipyridine domain and a tetra-azacrown binding domain. Introduction of one equivalent of Cu2+ ions results in co-ordination of the ion by all four of the available N-donor atoms in the azacrown unit.
Felton, Cara E.
core +4 more sources
Click'n ROPISA: One‐Pot Synthesis of Ultrabright Fluorescent Nanoparticles Made of Polypeptides
Angewandte Chemie, EarlyView.Self‐assembly and fluorophore conjugation proceed rapidly in a one‐pot “Click'n ROPISA” process, yielding intensely fluorescent polypeptide nanoparticles with tunable visible emission. High dye loading enables efficient energy transfer and single‐particle visualization, while the straightforward synthesis provides versatile access to bright ...
Amin El Jarroudi Hammou +7 more
wiley +2 more sources
Advanced Science, EarlyView.Upon UV irradiation, flexible and tough hydrogels are formed rapidly (>0.5 s) from dilute (>0.5 wt%) solutions of o‐ethylnitrobenzene–modified PVA. At ∼1.5 wt%, the hydrogels withstand up to 10 MPa compression, remain handleable even after 200‐fold swelling.
Masaaki Okihara +4 more
wiley +1 more source
Recent advances in the biosynthesis of coumarin and its derivatives
Green Chemical EngineeringCoumarin and its derivatives, presenting in many organisms (plants, fungi, and bacteria), are critical metabolites composed of fused benzene and α-pyrone rings.
Yusong Zou, Yuxi Teng, Joy Li, Yajun Yan
doaj +1 more source