Calix protected gold nanobeacon as turn-off fluorescent sensor for phenylalanine

Resorcinarene-Embedded Stable Silver Nanoparticles: A Fluorescent Nanoprobe for Pb(II) in Water

“…Fluorescence spectra were recorded on a Jasco FP-6500 spectrofluorometer. [4]resorcinarene tetrahydrazide protected silver nanoparticles (CRTH-AgNps) Silver nanoparticles were prepared by the reduction of AgNO 3 in the presence of calix [4]resorcinarene tetrahydrazide (CRTH) [32]. A series of experiments were performed varying the concentration of silver nitrate and CRTH to obtain highly stable AgNps.…”

“…The application of various calixarene platforms as well as conjugation of calix with nanomaterials as sensors has become an emerging topic of interest [20][21][22][23][24][25][26][27][28][29][30][31]. The present work represents a rapid, sensitive, low cost and convenient assay for Pb(II) detection in water using calix [4]resorcinarene tetrahydrazide [32]. Furthermore, the selectivity of Pb(II) detection system is excellent when tested against a series of heavy metal ions, such as Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Hg(II) in both aqueous solutions and mixtures of these ions.…”

Catalytic activity of recyclable resorcinarene-protected antibacterial Pd nanoparticles in C-C coupling reactions

“…Resorcinarene hydrazide [22,27,28] derivatives are well known to function as a reducing agent as well as a stabilizing agent for the preparation of Au, Ag, and Au-Ag alloy nanoparticles. Herein, we believe for the first time the facile TMRTHmediated synthesis of PdNPs using aqueous solutions of Pd(OAc)2 and TMRTH without the use of any external reducing agent.…”

Iron oxide Nanoparticles: Synthesis and Characterization by Chemical Deposition method

“…In the emerging field of nanotechnology, a goal is to make nanostructures or nanoarrays with special properties with respect to those of bulk or single particle species. Oxide nanoparticles and metal nanoparticles [10][11][12][13] can exhibit unique physical and chemical properties due to their limited size and a high density of corner or edge surface sites. Particle size is expected to influence three important groups of basic properties in any material.…”