Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> Ions
In this work, an aggregation-induced emission (AIE) sensor for the detection of Fe<sup>3+</sup> ions was fabricated through the electrostatic interaction between 1,1,2-triphenyl-2-[4-(3-sulfonatopropoxyl)-phenyl]-ethene sodium salt (SPOTPE) and quaternized cellulose (QC). The structure a...
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doaj-a9b6ab1648884274ac0c2b524c3751be2020-11-25T01:06:41ZengMDPI AGNanomaterials2079-49912019-02-019227910.3390/nano9020279nano9020279Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> IonsHaoying Wang0Xiu Ye1Jinping Zhou2Department of Chemistry, Wuhan University, Wuhan 430072, ChinaDepartment of Chemistry, Wuhan University, Wuhan 430072, ChinaDepartment of Chemistry, Wuhan University, Wuhan 430072, ChinaIn this work, an aggregation-induced emission (AIE) sensor for the detection of Fe<sup>3+</sup> ions was fabricated through the electrostatic interaction between 1,1,2-triphenyl-2-[4-(3-sulfonatopropoxyl)-phenyl]-ethene sodium salt (SPOTPE) and quaternized cellulose (QC). The structure and properties of the SPOTPE/QC nanocomplex were studied by using <sup>1</sup>H NMR, spectrofluorophotometer, transmission electron microscopy (TEM), and dynamic laser light scattering (DLS). An aqueous solution of SPOTPE and QC resulted in a remarkably enhanced cyan fluorescence in comparison to that of the SPOTPE solution. Strong through-space electrostatic interaction between SPOTPE and QC is the main cause for the fluorescence emerging. The fluorescence of the SPOTPE/QC solutions show good stability over a wide pH range of 5.0⁻10.0. When introducing Fe<sup>3+</sup> ions into the SPOTPE/QC solution, the fluorescence quenched within 5 s. SPOTPE/QC solutions exhibited high selectivity and sensitivity for the detection of Fe<sup>3+</sup> ions with ignored interferences from other ions, and the detection limit was determined to be 2.92 × 10<sup>−6</sup> M. The quenching mechanism was confirmed to be the consequence of the binding interactions between Fe<sup>3+</sup> ions and SPOTPE/QC complex.https://www.mdpi.com/2079-4991/9/2/279aggregation-induced emissionquaternized celluloseelectrostatic interactionfluorescenceFe<sup>3+</sup> ions |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Haoying Wang Xiu Ye Jinping Zhou |
spellingShingle |
Haoying Wang Xiu Ye Jinping Zhou Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> Ions Nanomaterials aggregation-induced emission quaternized cellulose electrostatic interaction fluorescence Fe<sup>3+</sup> ions |
author_facet |
Haoying Wang Xiu Ye Jinping Zhou |
author_sort |
Haoying Wang |
title |
Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> Ions |
title_short |
Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> Ions |
title_full |
Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> Ions |
title_fullStr |
Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> Ions |
title_full_unstemmed |
Self-Assembly Fluorescent Cationic Cellulose Nanocomplex via Electrostatic Interaction for the Detection of Fe<sup>3+</sup> Ions |
title_sort |
self-assembly fluorescent cationic cellulose nanocomplex via electrostatic interaction for the detection of fe<sup>3+</sup> ions |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2019-02-01 |
description |
In this work, an aggregation-induced emission (AIE) sensor for the detection of Fe<sup>3+</sup> ions was fabricated through the electrostatic interaction between 1,1,2-triphenyl-2-[4-(3-sulfonatopropoxyl)-phenyl]-ethene sodium salt (SPOTPE) and quaternized cellulose (QC). The structure and properties of the SPOTPE/QC nanocomplex were studied by using <sup>1</sup>H NMR, spectrofluorophotometer, transmission electron microscopy (TEM), and dynamic laser light scattering (DLS). An aqueous solution of SPOTPE and QC resulted in a remarkably enhanced cyan fluorescence in comparison to that of the SPOTPE solution. Strong through-space electrostatic interaction between SPOTPE and QC is the main cause for the fluorescence emerging. The fluorescence of the SPOTPE/QC solutions show good stability over a wide pH range of 5.0⁻10.0. When introducing Fe<sup>3+</sup> ions into the SPOTPE/QC solution, the fluorescence quenched within 5 s. SPOTPE/QC solutions exhibited high selectivity and sensitivity for the detection of Fe<sup>3+</sup> ions with ignored interferences from other ions, and the detection limit was determined to be 2.92 × 10<sup>−6</sup> M. The quenching mechanism was confirmed to be the consequence of the binding interactions between Fe<sup>3+</sup> ions and SPOTPE/QC complex. |
topic |
aggregation-induced emission quaternized cellulose electrostatic interaction fluorescence Fe<sup>3+</sup> ions |
url |
https://www.mdpi.com/2079-4991/9/2/279 |
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