Biomineralized Nano-Assemblies of Poly(Ethylene Glycol) Derivative with Lanthanide Ions as Ratiometric Fluorescence Sensors for Detection of Water and Fe³⁺ Ions.

ABSTRACT: An effective strategy was developed to fabricate novel lanthanide ions-pyromellitic acid-methoxy poly(ethylene glycol) (Ln-PMA-MPEG) nano-assemblies. The amphiphilic partially esterified derivative (PMA-MPEG) of pyromellitic acid with methoxy poly(ethylene glycol) was designed and synthesized via the coupling reaction. Ln-PMA-MPEG nano-assemblies were rapidly fabricated using PMA-MPEG as a polymer ligand with Eu³⁺ ions or mixed Eu³⁺/Tb³⁺ ions through biomimetic mineralization in neutral aqueous systems. The size of the as-prepared materials could be designed in the range 80-200 nm with a uniform distribution. The materials were readily dispersed in various solvents and displayed visible color variations and different photoluminescent properties for solvent

SUBMITTER: Chen T 

PROVIDER: S-EPMC9146912 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature