Albumin host for supramolecular fluorescence recognition.

Synthetic molecular sensors are crucial for real-time monitoring in biological systems and biotechnological applications, where detecting targets amidst potential interferents is essential. This task is particularly challenging in competitive environments that lacking chemically reactive functional groups, common in agricultural, biological, and environmental contexts. Consequently, scientific efforts have focused on developing sensitive and rapid analytical techniques, with fluorescent sensors emerging as prominent tools.

A smartphone-based supramolecular biosensor for portable and rapid detection of buprofezin in real food samples.

Buprofezin (BUP) is an insect growth regulator widely used in agriculture to control hemipteran pests, particularly the melon aphid, Aphis gossypii, due to its efficiency and low toxicity. Although approved by the Chinese government, its maximum residue limit (MRL) in food is strictly regulated, and conventional techniques for detecting BUP have several limitations. Our study reports successful BUP detection using a supramolecular fluorescent probe DP@ALB, constructed with chalcone-based fluorescent dye DP and albumin as the host.

Boosting smartphone-assisted on-site monitoring capacity for nitroxynil using synergistic fluorescent sensing system.

A novel ratiometric analytical method based on a quantum dot (QD)-integrated supramolecular sensing system successfully achieves the portable on-site detection of nitroxynil.

Dual channel chemosensor for successive detection of environmentally toxic Pd and CN ions and its application to cancer cell imaging.

Background: Detecting and neutralizing Pd ions are a significant challenge due to their cytotoxicity, even at low concentrations. To address this issue, various chemosensors have been designed for advanced detection systems, offering simplicity and the potential to differentiate signals from different analytes. Nonetheless, these chemosensors often suffer from limited emission response and complex synthesis procedures.

Positional Isomeric Symmetric Dipodal Receptors Dangled with Rotatable Binding Scaffolds: Fluorescent Sensing of Silver Ions and Sequential Detection of l-Histidine and Their Multifarious Applications.

Three simple dipodal artificial acyclic symmetric receptors, , , and , driven by positional isomerism based on xylelene scaffolds were designed, synthesized, and characterized by H NMR, C NMR, and mass spectroscopy techniques. Probes , , and demonstrated selective detection of Ag metal ions and amino acid l-histidine in a DMSO-HO solution (1:1 v/v, HEPES 50 mM, pH = 7.4).

An efficient 2-aminothiazolesalicylaldehyde fluorescent chemosensor for Fe ion detection and a potential inhibitor of NUDT5 signaling hormone for breast cancer cell and molecular keypad lock application.

Unlabelled: A novel thiazole phenol conjugate, 2-aminothiazolesalicylaldehyde (receptor1) was designed and synthesized for the first time through a single step process via Schiff base condensation reaction. The formation of receptor1 was confirmed by FTIR, C NMR, and H NMR. The IR spectra confirmed the presence of the aldimine formation.

A photoswitchable "turn-on" fluorescent chemosensor: Quinoline-naphthalene duo for nanomolar detection of aluminum and bisulfite ions and its multifarious applications.

A quinoline-naphthalene duo-based Schiff base probe (R) was synthesized and characterized by the usual spectroscopic and single-crystal X-ray crystallographic techniques. Probe R detects Al and HSO ions via the fluorescent turn-on approach by dual pathways i.e.

Rhodanine-based fluorometric sequential monitoring of silver (I) and iodide ions: Experiment, DFT calculation and multifarious applications.

A simple rhodanine derived fluorophoric unit has been designed for selective detection of Ag and I ions in DMSO-HO medium. The sensor R1 showed an obvious "turn-on" fluorescence response toward Ag due to the inhibition of both C-N single bond free rotation, internal charge transfer (ICT) and the formation of chelation enhanced fluorescence (CHEF) effects. The fluorescence quantum yield (Φ) was increased from 0.

Performance of 2-Hydroxy-1-Naphthaldehyde-2-Amino Thiazole as a Highly Selective Turn-on Fluorescent Chemosensor for Al(III) Ions Detection and Biological Applications.

The thiazole based Schiff base 2-hydroxy-1-naphthaldehyde-2-amino thiazole (receptor1) was synthesized through a single step process and characterized by spectroscopic and analytical techniques. The cation detecting ability of the receptor1 was explored by fluorescent spectroscopic methods. The receptor1 has recognized Al ions by a turn-on process over a panel of other potentially competing metal ions.