An Hg²⁺-selective chemosensor based on the self-assembly of a novel amphiphilic block copolymer bearing rhodamine 6G derivative moieties in purely aqueous media

Abstract

An amphiphilic block copolymer-based colorimetric and fluorescent chemosensor for Hg2+was prepared, which was synthesized by sequential RAFT polymerization of NIPAM and R6GDM (a novel Hg2+-sensitive rhodamine monomer).

Thermo-responsive fluorescence of AIE-active poly(N-isopropylacrylamides) labeled with highly twisted bis(N,N-dialkylamino)arenes

“…The spectra of [ANTH-polymer] x are similar to those of ANTH-monomer and ANTH-linker, except for the deviation of the absorption spectrum at l abs ¼ $300 nm, which should be attributed to the absorption of PNIPAM. 42 In aqueous solution, [ANTH-polymer] x exhibited a broader absorption band, a slight bathochromic shi of the uorescence spectrum ( Fig. 3), and enhanced F  (Table 2) than in THF solution.…”

Selective detection of Fe (III) via fluorescence turn-on mechanism with Rhodamine tethered poly(vinyl amine) microbeads

“…Rhodamine 6G hydrazide was synthesized as explained in the literature [26]. First of all, ethanol solution (60 mL) of rhodamine 6G (2.40 g, 5 mmoles) was put into 100-mL Erlenmeyer flask.…”

Diketopyrrolopyrrole Amphiphile-Based Micelle-Like Fluorescent Nanoparticles for Selective and Sensitive Detection of Mercury(II) Ions in Water

“…Surfactant-like amphiphilic molecules that possess both hydrophobic and hydrophilic units have shown a strong tendency to form self-assembled nanostructures in aqueous solutions; these molecules are thus a possible way to produce surfactant-free micelle ONP-based nanoprobes . To date, the study of small molecules is challenging, although many micellar ONPs based on amphiphilic macromolecules − have been made. Recently, Zhu et al produced a novel micelle-like nanoparticle using quinoline–malononitrile derivatives (a small molecule) to recognize bovine serum albumin (BSA) and trypsin .…”