Exactly Restricting the Phenyl Ring Rotation in Metal‐Organic Framework for Ultra‐Sensitive and Specific Ratiometric Fluorescent Sensing of Sarin DOI Creative Commons
Cong Lyu, Chuanfang Zhao,

Meimei Wang

et al.

Aggregate, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

ABSTRACT To realize highly sensitive and specific sensing toward sarin, an Eu(III) based metal‐organic framework (Eu‐CTTB‐MOF), encompassing a π‐conjugated organic ligand H 4 CTTB (4,4′,4″,4‴‐(9H‐carbazole‐1,3,6,8‐tetrayl)tetrabenzoic acid) was explored for ratiometric fluorescent sensing. An unprecedented recognition of nerve‐agent sarin mimic diethyl chlorophosphate (DCP) in the presence HCl interferent low limit detection (LOD, 20.97 nM) were achieved. This excellent performance is driven by dual hydrogen bonding hydrophobic interaction between DCP, which would cause dramatic change molecular configuration ligand. Density functional theory (DFT) calculations further verify DCP Eu‐CTTB‐MOF could suppress rotations aromatic rings ligand, significantly reducing nonradiative decay pathways subsequently enhancing intensity Especially, enables immediate response to vapor specificity towards even 18 types interferents, including vapor, structural analogs, volatile solvent, gas detector with accurate simulated scenarios, positioning designed MOF as promising material practical scenarios. We expect that present strategy will shine light on development brand‐new materials on‐site applications.

Language: Английский

Amino-Functionalized Nano-UiO-66 for the Detection of Nerve Agent Analogs DOI

Mengting Ran,

Yali Liu,

Feng Lu

et al.

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Language: Английский

Citations

0
One-Step Coordinating POPD in H3BTB-Sensitized EuMOF-Enabled Tunable Antenna Effects for Fluorescence Turn-On Sensing of Sarin Analogue Vapor DOI
Jiangli Pang,

Yali Liu,

Chuanfang Zhao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

The structural modification of metal-organic frameworks (MOFs) is vital importance in many fields, especially sensing with enhanced performance, while the efficient synthesis functionalized MOF nanoparticles toward small molecule detection remains challenging. Here, a general cellulose nanofibril (CNF)-induced situ one-step strategy was proposed for dual-ligand-functionalized europium-based (EuMOF@CNF) under an effective regulation crystallization kinetics hydrothermal synthesis. Based on unique dual-ligand structure, obtained EuMOF featured tunable antenna effect and laid good foundation fluorescence-sensing materials. Benefiting from superior self-assembly properties CNFs EuMOF@CNF, flexible films were constructed, showing excellent mechanical (72 MPa stress 3.8% strain) luminescence achieving instant (1 s) sensitive fluorescence sarin analogue vapor significantly low limit (LOD, 2.8 ppb) robust selectivity against wide range common interferents (>14 types), independent acids. We believe that this pioneering design effects would positively advance development high-performance MOF-based fluorescent materials devices.

Language: Английский

Citations

0
Exactly Restricting the Phenyl Ring Rotation in Metal‐Organic Framework for Ultra‐Sensitive and Specific Ratiometric Fluorescent Sensing of Sarin DOI Creative Commons
Cong Lyu, Chuanfang Zhao,

Meimei Wang

et al.

Aggregate, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

ABSTRACT To realize highly sensitive and specific sensing toward sarin, an Eu(III) based metal‐organic framework (Eu‐CTTB‐MOF), encompassing a π‐conjugated organic ligand H 4 CTTB (4,4′,4″,4‴‐(9H‐carbazole‐1,3,6,8‐tetrayl)tetrabenzoic acid) was explored for ratiometric fluorescent sensing. An unprecedented recognition of nerve‐agent sarin mimic diethyl chlorophosphate (DCP) in the presence HCl interferent low limit detection (LOD, 20.97 nM) were achieved. This excellent performance is driven by dual hydrogen bonding hydrophobic interaction between DCP, which would cause dramatic change molecular configuration ligand. Density functional theory (DFT) calculations further verify DCP Eu‐CTTB‐MOF could suppress rotations aromatic rings ligand, significantly reducing nonradiative decay pathways subsequently enhancing intensity Especially, enables immediate response to vapor specificity towards even 18 types interferents, including vapor, structural analogs, volatile solvent, gas detector with accurate simulated scenarios, positioning designed MOF as promising material practical scenarios. We expect that present strategy will shine light on development brand‐new materials on‐site applications.

Language: Английский

Citations

0