Turn-on fluorescence probe for selective detection of Hg(II) by calixpyrrole hydrazide reduced silver nanoparticle: Application to real water sample

Molecular Engineering of Free‐Base Porphyrins as Ligands—The N−H⋅⋅⋅X Binding Motif in Tetrapyrroles

“…[65] Optical sensors are often based on covalently linked colorimetric or fluorescent reporter groups where perturbation of the electronic properties upon complexation results in avisual or fluorescence-based signal (fluorescence quenching/"turn off" or "turn on"). [52,66] As econd approach involves ad isplacement-assay where an initial host-guest complex dissociates upon addition of amore strongly coordinating analyte, which results in ac olor change (Figure 7). [53a] On the other hand, electrochemical sensing utilizes ion-selective electrodes, [67] discrete redox-active molecular receptors, [68] and chemically modified electrodes.…”

Thiacalix[4]arene functionalized gold nano-assembly for recognition of isoleucine in aqueous solution and its antioxidant study

“…Our group has reported synthesis of hydrazide derivatives of different calixarene platforms for the preparation of gold, silver and palladium nanoparticles [22][23][24][25][26][27][28][29][30] acids, peptides, proteins, and carbohydrate, like ultimate substrates in biological processes, by synthetic receptors is a topic of great concern from both a host-guest chemistry and analytical application point of view [31][32][33][34][35]. Naturally occurring amino acids have recently been the topic of abundant investigation due to the functional and structural prominence of such interactions in chemistry and biology.…”

Functionalized Calixarenes Drug-Sensing Receptor: A Review

“…The use of functionalized oxacalixarene as a fluorescent sensor for the selective and sensitive detection of ions like copper and cerium and molecules like pendimethalin has also been reported [10,11]. Different thiacalixarene derivatives have also been explored for the detection of mercury and cobalt ion based on fluorescence mechanism [12,13]. An ionophore based on schiff-based calixarene has been used for sensor Ag (I) ions [14].Threat agents like nitro aromatic compounds have also been selectively sensed by Dipyrenylcalix [4] arene [15].…”