Ir para o conteúdo principal

Escrever uma avaliação PREreview

Chiral Covalent Organic Frameworks for Enantioselective Fluorescence Sensing

Publicado
Servidor
Preprints.org
DOI
10.20944/preprints202604.1603.v1

Chirality is a cornerstone of biological systems and pharmaceutical activity, driving a crit-ical need for rapid and sensitive enantioselective analytical methods. Covalent organic frameworks (COFs) have emerged as versatile porous materials, and their chiral counter-parts, chiral COFs (CCOFs), uniquely combine high surface area, predesignable pores, and a confined chiral microenvironment, making them exceptional platforms for enantioselective fluorescence sensing. This review systematically summarizes recent advances in the construction and application of CCOFs for enantioselective fluorescence sensing. We first outline the primary synthetic strategies for CCOFs, including direct synthesis, post-synthetic modification, and chiral induction. Subsequently, based on the direction of fluorescence signal change upon analyte binding, we classify the sensing mechanisms in-to three categories: “turn-off” (quenching via static complexation or photoinduced electron transfer), “turn-on” (enhancement through rigidification or suppression of electron transfer), and ratiometric (self-calibrating dual-emission response). Representative examples for the detection of amino acids, amino alcohols, terpenes, and saccharides are highlighted for each mode. Special emphasis is placed on structure–property relationships, such as the synergistic roles of hydrogen bonding, π–π stacking, and framework confinement in amplifying enantioselectivity. Finally, we discuss current challenges and future perspectives, including the rational design of ratiometric sensors, integration into practical devices, and the convergence with machine learning to advance the field of smart chiral sensing.

Você pode escrever uma avaliação PREreview de Chiral Covalent Organic Frameworks for Enantioselective Fluorescence Sensing. Uma avaliação PREreview é uma avaliação de um preprint e pode variar de algumas frases a um parecer extenso, semelhante a um parecer de revisão por pares realizado por periódicos.

Antes de começar

Vamos pedir que você faça login com seu ORCID iD. Se você não tiver um iD, pode criar um.

O que é um ORCID iD?

Um ORCID iD é um identificador único que diferencia você de outras pessoas com o mesmo nome ou nome semelhante.

Começar agora