Sensing of fluoride ions in aqueous media using a luminescent coordination polymer and liposome composite

Abstract

The synthesis of a luminescent coordination polymer (Tb-BTC) within the confined environment of a liposome allowed for the anisotropic growth of nanosized Tb-BTC crystals. Consequently, the resulting composite Tb-BTC@Lipo exhibited a higher fluorescence sensitivity to fluoride anions in aqueous media compared to the independent Tb-BTC in bulk.

Direct Synthesis of Prussian Blue Nanoparticles in Liposomes Incorporating Natural Ion Channels for Cs+ Adsorption and Particle Size Control

“…Liposomes with the AmB channel improved the performance of PB NPs in aqueous media, which suggested the effectiveness of inhibiting aggregation and the interface between PB NPs and liposome on Cs + adsorption. Since our strategy is versatile, it can be applicable for preparing other CPs with other ion channels . Such CPs–liposome composites are expected to exhibit excellent performance as molecular capture, transportation, deliver/release, and sensing in aqueous media.…”

“…Since our strategy is versatile, it can be applicable for preparing other CPs with other ion channels. 36 Such CPs−liposome composites are expected to exhibit excellent performance as molecular capture, transportation, deliver/release, and sensing in aqueous media.…”

Photoluminescent Nanoparticles for Chemical and Biological Analysis and Imaging

“…In another example, the aqueous interior was used to carry indicator dyes that are normally cell-permeant in order to limit measurements to extracellular environments . Assembly of a Tb 3+ –benzene-1,3,5-tricarboxylate coordination polymer cargo within the aqueous interior of a liposome (with embedded ion channels) also produced a 3-fold more sensitive response to fluoride than the bulk polymer, which was attributed to a larger surface area and higher water dispersibility …”

“…851 Assembly of a Tb 3+ −benzene-1,3,5-tricarboxylate coordination polymer cargo within the aqueous interior of a liposome (with embedded ion channels) also produced a 3-fold more sensitive response to fluoride than the bulk polymer, which was attributed to a larger surface area and higher water dispersibility. 852 An analysis approach similar to the dissolution strategy noted above for DDSNPs was also proposed for liposomes. 853 Anti-cocaine aptamers were attached to magnetic beads and hybridized with oligonucleotide complementary strands that were conjugated with phospholipase A 2 (PLA 2 ).…”

Singlet Oxygen Generation in Dark‐Hypoxia by Catalytic Microenvironment‐Tailored Nanoreactors for NIR‐II Fluorescence‐Monitored Chemodynamic Therapy

“…)was found to effectively catalyze the formation of 1 O 2 from H 2 O 2 under alkaline conditions,e specially at pH 10-11. Unfortunately,s uch high pH levels seem unlikely in biological systems.T omeet the pH requirement for catalysis,the CMTNs were constructed by coencapsulating MoO 4 2À catalyst and alkaline sodium carbonate within liposomes.B enefiting from the selective permeability properties of lipid bilayer that is impermeable to ions and GSH, [15] [16] enabling 1 O 2 -mediated CDT against hypoxic tumor cells.M oreover,R OS-sensitive NIR-II dye IR1061, along with lanthanide-based downconversion nanoparticles (DCNPs) as ar eference signal, was embedded in the CMTNs to achieve ratiometric NIR-II fluorescence imaging of 1 O 2 generation. This study not only provides aparadigm for real-time monitoring of 1 O 2 generation during CDT process by NIR-II ratiometric fluorescence,b ut also opens up anew avenue to improve chemodynamic efficacy of ROS-producing catalysts through the engineering of catalytic microenvironment.…”