Cis/trans Fluorescent Recognition by Naphthalimide Dyes ⊂ CB [7] Assembly

Li, Junyong; Gu, Xiaomin; Yuan, Xinrui; Qiu, Qiqi; Sun, Jie; Wang, Haibo

doi:10.1007/s10895-016-1807-2

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…These phenomena are attributed to synergistic effect of π – π assembly and intramolecular charge transfer (ICT). [ 51,52 ] That is, charge transfers from imine and amido units to the naphthalene ring in the molecule. The ESP of imine and amino groups on NH appears orange (Figure S21, Supporting Information), indicating unique electron‐rich units conducive to ICT.…”

Section: Resultsmentioning

confidence: 99%

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Yang

Zheng

et al. 2023

Advanced Materials

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Information encryption technologies are very important for security, health, commodity, and communications, etc. Novel information encryption mechanisms and materials are desired to achieve multi‐mode and re‐programmable encryption. Here, we demonstrate a supramolecular strategy to achieve multi‐modal, erasable, reprogrammable, and reusable information encryption by reversibly modulating fluorescence. A butyl‐naphthalimide with flexible ethylenediamine functionalized β‐cyclodextrin (N‐CD) is utilized as fluorescent responsive ink for printing or patterning information on polymer brushes with dangling adamantane group grafted on responsive hydrogels. The photoluminescent naphthalimide moiety is bonded to β‐CD and entrapped in the cavity. Its fluorescence is highly weakened in β‐CD cavity and recovers after being expelled from the cavity by a competing guest molecule to emit bright green photoluminescence under UV. Experiments and theoretical calculations suggest π‐π stacking and ICT as the primary mechanism for the naphthalimides assembly and fluorescence, which can be quenched through insertion of conjugated molecules and recover by removing the insert. Such reversible quenching and recovering are used to achieve repeated writing, erasing, and re‐writing of information. We further combine supramolecular recognition and hydrogel shape memory to achieve reversible dual‐encryption. This study provides a novel strategy to develop smart materials with improved information security for broad applications.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 99%

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Yang

Zheng

et al. 2023

Advanced Materials

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Fluorescent Determination of Succinylcholine Chloride by Naphthalimide/ Stilbazolium Dye ⊂ CP5A

Pan

Xia

et al. 2018

J Fluoresc

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Succinylcholine Chloride (SCC), a short-acting neuromuscular relaxant, is non-fluorescent in aqueous solutions. This property makes it impossible to be determined by direct fluorescent method. Naphthalimide dye (NA) exhibits very strong fluorescence emissions in aqueous solution, after complexing with carboxylatopillar[5]arene (CP5A) in aqueous solutions, the fluorescent quenched intensity of complex was observed. On the contraty, stilbazolium dye (SA) exhibits weak fluorescence emissions in aqueous solution, after being included by CP5A, a fluorescence enhancement was observed. However, adding SCC to the NA⊂ CP5A or SA⊂ CP5A complex solution led to the recovery of the fluorescence intensity, in the meantime, the color of SA⊂ CP5A solution changed from dark yellow to light yellow. The competitive supramolecular interaction between SCC, NA and SA for CP5A was studied by spectrofluorometry, H NMR. Herein, a FID (fluorescence indicator displacement) system to detect SCC based on NA⊂ CP5A and SA⊂ CP5A complex was developed.

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Chiral Fluorescent Recognition by Naphthalimide

Chen

Wei

et al. 2020

J Fluoresc

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Cis/trans Fluorescent Recognition by Naphthalimide Dyes ⊂ CB [7] Assembly

Cited by 3 publications

References 19 publications

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Erasable, Rewritable, and Reprogrammable Dual Information Encryption Based on Photoluminescent Supramolecular Host–Guest Recognition and Hydrogel Shape Memory

Fluorescent Determination of Succinylcholine Chloride by Naphthalimide/ Stilbazolium Dye ⊂ CP5A

Chiral Fluorescent Recognition by Naphthalimide

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