“Confined Eutectic” Strategy for Visual Refrigeration Responsive Fluorescent Materials with Easy Preparation and Multi‐Color Tunability

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

The temperature response window is a very critical parameter for evaluating sensing performance of thermofluorochromic materials, and its regulation has long been key focus in this field. Especially, the indication refrigeration great significance as it relates to public health food safety. However, developing fluorochromic materials capable visually reading out remains challenges. Herein, "confined eutectic" strategy proposed develop that are easy prepare can naked-eye recognition temperature. Through supramolecular interactions between dopant host matrix, eutectic micro-domains formed their crystallization point effectively lowered into range 0-10 °C. excellent crystalline matrix provides "confinement" effect, thereby enhancing crystallinity eutectics, which enables precise aggregation dispersion surrounding fluorophores, resulting significant color changes. mechanism validated through variable-temperature fluorescence spectra, confocal laser scanning microscopy phase diagram analysis. obtained exhibit high contrast, apply diverse dyes multi-mode multi-color readout. This work not only open up new insights responsive but also way visual crystallinity.

Language: Английский

Recent Advances in Tetra-Coordinate Boron-Based Photoactive Molecules for Luminescent Sensing, Imaging, and Anticounterfeiting

Precision Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Tetra-coordinate boron-based fluorescent materials hold considerable promise across chemistry, biology and science due to their unique precisely tunable optoelectronic properties. The incorporation of the heteroatom boron (B) enables these exhibit high luminescence quantum yields, adjustable absorption emission wavelengths, exceptional photostability. This review examines molecular design applications tetra-coordinate photoactive molecules, highlighting roles in fluorescence sensing, anticounterfeiting, imaging. We outline how structural features impact properties discuss strategies for enhancing performance, including ligand modification extension conjugation length, among others. Additionally, future research focus this field is also addressed diversifying structures stability, which believed pave way innovative solutions challenges areas such as imaging information security.

Language: Английский