نتایج جستجو برای: fluorescent chemosensor
تعداد نتایج: 88142 فیلتر نتایج به سال:
A new benzothiazole-based chemosensor BTN (1-((Z)-(((E)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazono)methyl)naphthalen-2-ol) was synthesized for the detection of Cu2+. could detect Cu2+ with “off-on” fluorescent response from colorless to yellow irrespective presence other cations. Limit determined be 3.3 μM. Binding ratio and turned out a 1:1 analysis Job plot ESI-MS. Sensing feature by exp...
Fluorescent dyes have played crucial roles in the field of molecular imaging as fluorescent fluorophores. In this work, a novel water-soluble and pH-independent fluorescent xanthene dye, a hydroxyl regioisomeric 3',4'-benzorhodol, has been designed and synthesized. Compared with those of rhodol dyes, the absorption (ca. 570 nm) and maximum emission (ca. 620 nm) of the dye are largely red-shifte...
Recently, more and more rhodamine derivatives have been used as fluorophores to construct sensors due to their excellent spectroscopic properties. A rhodamine-based fluorescent and colorimetric Fe(3+) chemosensor 3',6'-bis(ethylamino)-2-acetoxyl-2',7'-dimethyl-spiro[1H-isoindole-1,9'-[9H]xanthen]-3(2H)-one (RAE) was designed and synthesized. Upon the addition of Fe(3+), the dramatic enhancement...
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