U.S. Panchal, V.K. Jain
Keywords: resorcinarene, nanoparticles, trivalent chromium, quenching, surface plasmon resonance
Summary:Highly stable, water-dispersible fluorescent silver nanoparticles have been synthesized using tetra-methoxy resorcinarene tetra-hydrazide (TMRTH) as a reducing as well as a stabilizing agent. TMRTH-AgNps have been characterized by UV-Vis spectroscopy, TEM (transmission electron microscopy) and EDX (Energy dispersive X-ray analysis). TMRTH-AgNps have been checked for its stability at different pH and temperature. Fluorescence studies reveal TMRTH-AgNps as turn-off fluorescence sensor for Cr(III) ion with a detection limit of 1 mM to 1 µM. Cr(III) ion have been accurately and rapidly detected by TMRTH-AgNps among various other metal cations. Additionally, TMRTH-AgNps have been evaluated for its antimicrobial property and also a real sample analysis for the detection of Cr(III) from the Vinca rosea plant is also performed.