Results 261 to 270 of about 134,982 (313)

A C4N4 Diaminopyrimidine Fluorophore

Chemistry – A European Journal, 2019
AbstractInvited for the cover of this issue is the group of Masakatsu Shibasaki and Naoya Kumagai at the Institute of Microbial Chemistry (BIKAKEN), Tokyo. The image depicts the C4N4 unit, which harvests photoenergy and radiates a varied palette of lights. Read the full text of the article at 10.1002/chem.201900467.
Hidetoshi Noda, Yasuko Asada, Tatsuro Maruyama, Naoki Takizawa, Nobuo N. Noda, Masakatsu Shibasaki, Naoya Kumagai   +6 more
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Photoactivatable synthetic fluorophores

Physical Chemistry Chemical Physics, 2013
Photoactivatable fluorophores switch from a nonemissive state to an emissive one under irradiation at an activation wavelength and then emit light in the form of fluorescence upon illumination at an excitation wavelength. Such a concatenation of activation and excitation events translates into the possibility of switching fluorescence on within a ...
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Cross-Conjugated Cruciform Fluorophores

Accounts of Chemical Research, 2009
In optoelectronic devices, chromophores can be designed at the molecular level to create materials with properties desired for advanced applications. Organic fluorophores in particular can be constructed with macroscopic properties that arise from two distinct contributions: (i) the collective impact of the molecular backbone and substituents and (ii ...
Anthony J, Zucchero, Psaras L, McGrier, Uwe H F, Bunz   +2 more
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Alkoxy-styryl DCDHF fluorophores

Physical Chemistry Chemical Physics, 2010
A photostable dicyanomethylenedihydrofuran fluorophore which contains electron-donating alkoxy groups is described. This chromophore is highly environmentally-sensitive, which is a remarkable property for a fluorescent reporter. Its light excitation also enables, in low viscous solvents, the formation of dark states whose radical or triplet nature is ...
Enrique, Font-Sanchis, Raquel E, Galian, Francisco J, Céspedes-Guirao, Angela, Sastre-Santos, Luis R, Domingo, Fernando, Fernández-Lázaro, Julia, Pérez-Prieto   +6 more
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Autofluorescence of hydrogels without a fluorophore

Soft Matter, 2019
Carbonyl-containing hydrogels exhibit autofluorescence with varied intensity depending on the gel structure and water content.
Hua-Xiu Xu, Yun Tan, Di Wang, Xiong-Lei Wang, Wen-Li An, Ping-Ping Xu, Shimei Xu, Yu-Zhong Wang   +7 more
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Fluorophores in Endoscopic Neurosurgery

The complexity of intracranial anatomy and pathologies warrants the optimization of multimodal techniques to ensure safe and effective surgical treatment. Endoscopy is being more widely implemented in intracranial procedures as an important visualization tool, as it can offer panoramic views of deep structures while reducing the invasiveness of ...
Sonia, Ajmera, Rachel, Blue, John Y K, Lee   +2 more
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Fluorophores in the Eye

2019
There are different endogenous fluorophores in the retina. Each of them can be characterized by a spectral and a lifetime component. In this chapter an overview of fluorophores in the eye with their characteristic properties is provided. It includes lipofuscin/bisretinoids, macular pigment, collagen/elastin, redox coenzymes, melanin, lipid peroxidation
Yoko Miura, Paul S. Bernstein, Chantal Dysli, Lydia Sauer, Martin Zinkernagel   +4 more
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The conversion of azo-quenchers to fluorophores

Analytical Biochemistry, 2019
In this short note we describe the conversion of the widely used fluorescence quenching azo-dyes DABCYL and HABA to fluorophores. The dyes were conjugated to the proteins RNase and human serum albumin (HSA) and subsequently reduced using sodium dithionite (Na2S2O4), thus forming amine-containing fluorophores. Since this chemical reaction can be applied
O, Hofstetter, H, Hofstetter, T, Miron, M, Wilchek   +3 more
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Hydroxycruciforms: Amine‐Responsive Fluorophores

Chemistry – A European Journal, 2008
AbstractThe synthesis of three hydroxy‐substituted cruciforms (XF, 1,4‐bis(4′‐hydroxystyryl)‐2,5‐bis(4′′‐methoxyphenylethynyl)benzene, 1,4‐bis(4′‐methoxystyryl)‐2,5‐bis(4′′‐hydroxyphenylethynyl)benzene, and 1,4‐bis(4′‐hydroxystyryl)‐2,5‐bis(4′′‐hydroxyphenylethynyl)benzene) starts with a Horner reaction followed by a Sonogashira coupling and subsequent
Psaras L, McGrier, Kyril M, Solntsev, Shaobin, Miao, Laren M, Tolbert, Oscar R, Miranda, Vincent M, Rotello, Uwe H F, Bunz   +6 more
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Synthesis of indazole-based fluorophores

Organic & Biomolecular Chemistry
The indazole scaffold, with its planar, π-conjugated structure, enables extensive derivatization and tunable luminescence. This makes it ideal for sensing, bioimaging, and materials science, including applications like cell staining and drug development.
Thibault Gallavardin, Xavier Franck
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