Photophysical insights and guidelines for blue “turn‐on” fluorescent probes for the direct detection of nitric oxide (NO
<sup>•</sup>
) in biological systems
作者:Mina Barzegar Amiri Olia、Amber N. Hancock、Carl H. Schiesser、Lars Goerigk、Uta Wille
DOI:10.1002/poc.3896
日期:2019.2
Synthesis and photophysical properties of a family of five blue fluorescent “turn‐on” probes for the direct detection of nitricoxide (NO•) is reported. The probes CB1‐5 feature a substituted 7‐hydroxy coumarin chromophore coupled to 2‐methyl‐8‐aminoquinoline, which act as tridentate ligand for Cu(II) and active site for monitoring NO• using a replacement strategy. The UV/vis absorption and fluorescence
The present invention provides fluorescent biopolymers that are amino acid polymers conjugated to multiple mono-chlorinated 3-carbonyl-7-hydroxy-coumarin dyes, and methods of their use. The fluorescent biopolymers containing multiple mono-chlorinated 3-carbonyl-7-hydroxy-coumarin dyes generally exhibit superior fluorescence properties compared to biopolymers labeled with multiple non-chlorinated hydroxycoumarin dyes. The fluorescent biopolymers of the invention in which the amino acid polymer is an antigen-specific antibody are particularly useful for analyzing cells by flow cytometers that are equipped with a violet laser as an excitation source due to their strong absorption at 405 nm and high fluorescence quantum yield.
Synthesis and evaluation of sensitive coumarin-based fluorogenic substrates for discovery of α-<i>N</i>-acetyl galactosaminidases through droplet-based screening
作者:Hong-Ming Chen、Seyed Amirhossein Nasseri、Peter Rahfeld、Jacob F. Wardman、Maurits Kohsiek、Stephen G. Withers
DOI:10.1039/d0ob02484h
日期:——
part of a search for a substrate for droplet-based microfluidic screening assay of α-N-acetylgalactosaminidases, spectral and physical characteristics of a series of coumarin derivatives were measured. From among these a new coumarin-based fluorophore, Jericho Blue, was selected as having optimal characteristics for our screen. A reliable method for the challenging synthesis of coumarin glycosides
Blue ‘turn-on’ fluorescent probes for the direct detection of free radicals and nitric oxide in Pseudomonas aeruginosa biofilms
作者:Mina Barzegar Amiri Olia、Athanasios Zavras、Carl H. Schiesser、Stefanie-Ann Alexander
DOI:10.1039/c5ob02441b
日期:——
Two novel cell-permeable and bacteria-compatible ‘turn-on’ fluorescent probes, designed to be compatible in a multi-dye system and to fluoresce in the blue region exhibiting emission maxima of 440–490 nm, were synthesized. The profluorescent nitroxide probe (11) was developed to visualize and quantify freeradical and redox processes, and the Cu(II)-complexed coumarin-based probe (16a) was developed