Results 1 to 10 of about 2,979 (191)
Cyclohexene‐Embedded Dicyanomethylene Merocyanines – Consecutive Three‐Component Coupling‐Addition Synthesis and Chromophore Characteristics [PDF]
ChemistryOpen, 2023 A concise and efficient consecutive three‐component alkynylation‐addition synthesis of cyclohexene‐embedded dicyanomethylene merocyanines furnishes a small library of dyes in moderate to excellent yield. The dyes possess strong absorption coefficients of
Dr. Julian Papadopoulos +3 more
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Ultrafast photoinduced dynamics of a donor-( $$\mathrm \pi$$ π )bridge-acceptor based merocyanine dye [PDF]
Scientific Reports, 2022 Merocyanine dyes are of great interest amongst researchers due to their nonlinear optical (NLO) properties and solvatochromism. Molecular structure of these dyes constitutes conjugated pathway between the donor and acceptor substituents, with lowest ...
Jianwei Shen +10 more
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Machine Learning Accelerated Global Search for Adsorption Geometries of Merocyanine Molecule on Hexagonal Boron Nitride. [PDF]
J Comput ChemSchematic illustration of HB238 adsorption on hBN(001) explored using Bayesian optimization and a MACE potential. The workflow accelerates potential‐energy‐surface exploration while retaining DFT‐level accuracy for molecular adsorption. ABSTRACT The adsorption of the merocyanine dye HB238 on hexagonal boron nitride (hBN) was investigated using a ...
Tomar R, Bredow T.
europepmc +2 more sources
Environment-sensing merocyanine dyes for live cell imaging applications. [PDF]
Bioconjug Chem, 2013 Fluorescent biosensors based on environmentally sensitive dyes enable visualization and quantification of endogenous protein activation within living cells. Merocyanine dyes are especially useful for live cell imaging applications as they are extraordinarily bright, have long wavelengths of excitation and emission, and can exhibit readily detectable ...
MacNevin CJ +6 more
europepmc +4 more sources
Induced-Fit Recognition by a Calixarene-Pyrene Conjugate for Single- and Dual-Wavelength Fluorescence Sensing in Water. [PDF]
ChemistryA sulfonatocalix[4]arene–pyrene conjugate functions as a fluorescence chemosensor for the optical detection of biorelevant analytes in water. Its photoinduced electron transfer (PET) response is triggered by an induced‐fit recognition mechanism. Noncovalent assembly with an additional dye affords dual‐color ratiometric signaling via competitive PET ...
Martins JN +4 more
europepmc +2 more sources
Hydrogels Incorporating Donor-Acceptor Stenhouse Adducts as a Platform for Photoinduced, On-Off Switchable Release of Small Molecule Cargos. [PDF]
Macromol Rapid CommunDonor–acceptor Stenhouse aDdducts (DASAs) are known for their photoinduced tautomerization, which, when conjugated to block copolymers, can self‐assemble into tuneable polymersomes. These DASA‐polymersomes are being investigated for light‐controlled cargo release in biomedical applications.
Dell TN +10 more
europepmc +2 more sources
Physical Sciences Reviews, 2021 Abstract Merocyanine dyes belong to the class of neutral polymethine dyes, where one terminal component is typically found in cyanine dyes and the second obtained from an active methylene compound. The different electron acceptor/donator abilities of the two terminal components have a marked impact on the electronic structure of a ...
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Synthesis of Merocyanine Dyes [PDF]
Bulletin of the Chemical Society of Japan, 1978 Abstract New 1-ethyl-2-[(2-substituted 3-oxoisoindolin-1-ylidene)methyl]-pyridinium or quinolinium iodide merocyanine dyes were obtained by the reaction of 2-methyl quaternary salts with N-substituted phthalimide in the presence of piperidine.
Abdu E Abdel-Rahman, Zarif H Khalil
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Red-Shifted Environmental Fluorophores and Their Use for the Detection of Gram-Negative Bacteria
Chemosensors, 2021 Two novel, water-soluble, merocyanine fluorophores were readily prepared by microwave-assisted synthesis. Full optical characterization was performed in a series of protic and aprotic solvents, and the dyes displayed fluorescence in the red region with ...
Alicia Megia-Fernandez +7 more
doaj +1 more source
Compounds, 2023 Merophosphinine and phosphinine dyes were reported as phosphorus atom equivalents of merocyanine and cyanine dyes in the 1960s. Although these dyes are excellent sensitizers for enhancing photographic performance, their development has been considerably ...
Shigeyuki Yamada +2 more
doaj +1 more source