Pentaquinone based probe for nanomolar detection of zinc ions: Chemosensing ensemble as an antioxidant
作者:Vandana Bhalla、Roopa、Manoj Kumar
DOI:10.1039/c2dt31341c
日期:——
A pentaquinone based compound 3a has been synthesized which undergoes significant fluorescence enhancement in the presence of Zn2+ ions with a detection limit up to nanomolar range in THF. Further, the zinc ensemble of 3a is evaluated for its anti-oxidizing property which is better than commercially available antioxidants.
A pentaquinone based compound 3 has been synthesized which works as a selective and sensitive chemodosimeter for mercury ions via Hg2+ promoted hydrolysis of an imine linkage to generate a fluorescent change in mixed aqueousmedia.
New pentaquinone derivatives 5 and 8 having rhodamine moieties have been designed and synthesized that undergo through-bond energy transfer (TBET) in the presence of Hg2+ ions among the various cations (Cu2+, Pb2+, Fe2+, Fe3+, Zn2+, Ni2+, Cd2+, Co2+, Ag+, Ba2+, Mg2+, K+, Na+, and Li+) tested in mixed aqueous media.
Fluoride Triggered Fluorescence “Turn On” Sensor for Zn<sup>2+</sup> Ions Based on Pentaquinone Scaffold That Works as a Molecular Keypad Lock
作者:Vandana Bhalla、Roopa、Manoj Kumar
DOI:10.1021/ol301030z
日期:2012.6.1
A pentaquinone based compound 3a has been synthesized which exhibits pronounced fluorescence enhancement in the presence of Zn2+ ions under a F- triggered synergistic effect. Derivative 3a also behaves as a molecular keypad lock with sequential chemical inputs of Zn2+ and F- ions.
A new pentaquinone-based chemosensor armed with phenolic moieties has been synthesized. The fluorescence behaviour of the chemosensor in the presence of different chemical inputs mimics the functions of a digital encoder.