Layered host-guest long-afterglow ultrathin nanosheets: high-efficiency phosphorescence energy transfer at 2D confined interface

A thermochromic luminous polyurethane based on long persistent luminescent phosphors and thermochromic pigment

A thermochromic luminous polyurethane, which can reversibly change its color and fluorescence emission with temperature, was prepared through incorporating long persistent luminescent phosphors and thermochromic pigment.

An NIR-sensitive layered supramolecular nanovehicle for combined dual-modal imaging and synergistic therapy

A supramolecular nanovehicle, denoted as ICG-DOX/Gd-LDH, was synthesized by the co-intercalation of indocyanine green (ICG) and doxorubicin hydrochloride (DOX) into a gallery of Gd³⁺-doped-layered double hydroxide (Gd-LDH) such that to achieve a chemo-photothermal synergistic therapeutic agent. The unique structure of Gd-LDH can not only stabilize the photothermal agent ICG to enhance the photothermal efficiency, but also hamper the recombination between electron and holes, leading to the generation of more reactive oxygen species (ROS) under irradiation in the NIR range. Together with the loading capacity of DOX, ICG-DOX/Gd-LDH exhibited excellent combinatorial effects on tumor growth inhibition in both in vitro studies on HeLa cell line and in vivo tests over tumor-bearing mouse models. Moreover, it showed ideal ability for long-term tracing of the carrier distribution via either MRI or fluorescence imaging. Thus, this study indicates that Gd-LDH is a promising platform for the construction of multifunctional formulations, especially theranostic nano-systems for cancer treatment.

A photochromic long persistent luminescent polyurethane based on a colour conversion process

We report a photochromic long persistent luminescent polyurethane, which emits red light in daylight, and emits yellow light in the dark.

Lanthanide doped coordination polymers with tunable afterglow based on phosphorescence energy transfer

Lanthanide ion doped coordination polymers (CPs) exhibit an unusual red/green afterglow with long photoemission lifetimes (10.54 ms for Eu³⁺ and 57.66 ms for Tb³⁺) due to the phosphorescence energy transfer at room temperature.

Ordered assembly of hybrid room-temperature phosphorescence thin films showing polarized emission and the sensing of VOCs

Long-lived room-temperature phosphorescence (RTP) thin films through a layer-by-layer (LBL) process present polarized RTP and serve as sensors for VOCs.

Through-space Förster-type energy transfer in isostructural zirconium and hafnium-based metal–organic layers

Identical energy transfer rates in isostructural Zr and Hf metal–organic layers revealed dominant through-space energy transfer over the through-bond one.

Rationalization of liquid assisted grinding intercalation yields of organic molecules into layered double hydroxides by multivariate analysis

PCA, coupled to molecular descriptors, proved to be an effective tool to rationalize the mechanochemical intercalation yields of layered materials.