Results 31 to 40 of about 4,021 (220)
Predicting Solvatochromism of Chromophores in Proteins through QM/MM and Machine Learning
Solvatochromism occurs in both homogeneous solvents and more complex biological environments such as proteins. While in both cases the solvatochromic effects report on the surroundings of the chromophore, their interpretation in proteins becomes more ...
Patrizia, Mazzeo +4 more
core +3 more sources
Anti-quenching NIR-II molecular fluorophores for in vivo high-contrast imaging and pH sensing
Nature Communications, 2019 Fluorophores operating in the second near-infrared window suffer from solvatochromism-caused fluorescence quenching in biological aqueous solution. Here, the authors synthesized a series of pH-responsive pentamethine cyanine fluorophores that afford ...
Shangfeng Wang +7 more
doaj +1 more source
Design of Promising aza-BODIPYs for Bioimaging and Sensing
Designs, 2022 The obtainment of new luminophores for molecular sensorics of biosystems is becoming one of the urgent tasks in the field of chemical synthesis. The solution to each practical problem imposes its own limitations in the design of new structures with ...
Dmitry Merkushev +5 more
doaj +1 more source
Angewandte Chemie, EarlyView.Red‐emissive carbon dots (R‐CDs) exhibiting aggregation‐induced emission (AIE) and aggregation‐caused quenching (ACQ) effects are synthesized from citric acid and urea. They display weak blue fluorescence in water but strong red emission in DMF due to aggregation.
Jiafeng Wan +11 more
wiley +2 more sources
Beilstein Journal of Organic Chemistry, 2017 In this paper we present a synthetic approach to six new D–π–A–D conjugated chromophores containing the N-[ω-(4-methoxyphenoxy)alkyl]carbazole fragment. Such readily functionalizable heterocycle as carbazole was used as a main starting compound for their
Daria G. Selivanova +6 more
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2020 Two novel carbazole-based compounds 7a and 7b were synthesised as potential candidates for application in organic electronics. The materials were fully characterised by NMR spectroscopy, mass spectrometry, FTIR, thermogravimetric analysis, differential ...
Nuray Altinolcek +5 more
doaj +1 more source
Crystals, 2021 A new tetradentate Schiff base (SB), (E)-4-fluoro-2-(1-((2-(piperazin-1-yl)ethyl)imino)ethyl)phenol, was synthesized from condensation of 2-(1-piperazinyl)ethylamine and 5-fluoro-2-hydroxyacetophenone.
Amjad M. Shraim +5 more
doaj +1 more source
Regulation of Fluorescence Solvatochromism To Resolve Cellular Polarity upon Protein Aggregation
, 2021 Common solvatochromic fluorophores exhibit a bathochromic fluorescence emission wavelength shift accompanied by intensity attenuation due to the presence of nonradiative decay pathways at the excited state.
Wang Wan (1901359) +21 more
core +1 more source
Molecules, 2019 We report a new boron dipyrromethene (BODIPY)-bridged bisphenoxyl diradicaloid (2), which showed closed-shell diamagnetic character in less polar solvents such as dichloromethane but open-shell diradical character with paramagnetic activity in the very ...
Fang Miao, Hoa Phan, Jishan Wu
doaj +1 more source
Molecules, 2021 In this work we report solvatochromic and luminescent properties of ethyl N-salicylideneglycinate (1), ethyl N-(5-methoxysalicylidene)glycinate (2), ethyl N-(5-bromosalicylidene)glycinate (3), and ethyl N-(5-nitrosalicylidene)glycinate (4) dyes.
Larisa E. Alkhimova +2 more
doaj +1 more source