نتایج جستجو برای: fluorescent probe
تعداد نتایج: 174056 فیلتر نتایج به سال:
DAPI (4',6-diamidino-2-phenylindole) is a DNA-specific probe which forms a fluorescent complex by attaching in the minor grove of A-T rich sequences of DNA. It also forms nonfluorescent intercalative complexes with double-stranded nucleic acids. The physicochemical properties of the dye and its complexes with nucleic acids and history of the development of this dye as a biological stain are des...
Thick smoke routinely cloaks Southern California hills, highways, and neighborhoods during this region’s autumn wildfire season, with drought contributing to worse fires than usual in the past two years. Wildfire emissions generate larger aerosols than those produced by vehicles—up to 0.4 micrometers (μm) in diameter compared with less than 0.15 μm—according to a new study led by Constantinos S...
The discovery of an iron(III)-selective ratiometric fluorescent probe to detect and visualize endogenous labile iron pools in living organisms at the molecular level has been long awaited. Herein we report the first dual colorimetric and ratiometric fluorescent probe naphtho[2,1-b][1,10]phenanthroline for selective and 'direct' visualization of labile iron(III) pools in a multicellular organism...
A new rhodamine fluorescent probe for monitoring ˙OH has been developed based on the oxidative C-H abstraction reaction of rhodamine cyclic hydrazide. The probe exhibits excellent selectivity for ˙OH with virtually no interference by other ROS/RNS species. Fluorescent imaging of A549 and RAW264.7 cells is also successfully demonstrated to detect intracellular ˙OH in live cells.
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