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1,8-Naphthalimide Derivatives as Signal Elements in Chemical Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Chemical Sensors".

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 1656

Special Issue Editor


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Guest Editor
Faculty of Medicine, Sofia University “St. Kliment Ohridski”, 1407 Sofia, Bulgaria
Interests: sensors; 1,8-naphthalimides; dendrimers; polymers; dye chemistry; fluorescence; photophysics; environmental protection
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Special Issue Information

Dear Colleagues,

In recent years, the field of chemical sensors has seen significant growth due to the development of various sensor materials that feature high sensitivity, selectivity, and stability. Among these materials, 1,8-naphthalamide derivatives have gained popularity as versatile signal elements in chemical sensor design and construction due to their unique photophysical properties, structural flexibility, photostability, and ease of functionalization. On the other hand, by varying the electron donor substituent spatiality on the C-4 atom, compounds emitting blue wavelengths and yellow-green fluorescence with different intensities can be obtained.

1,8-Naphthalamides, as signal elements, offer several advantages, including a strong fluorescence, large Stokes shifts, and excellent photostability, which make them ideal for the design and fabrication of a wide range of optical sensors. These sensors find applications in environmental monitoring, industrial processes, medical diagnostics, and biological imaging. In addition, 1,8-naphthalamides can be designed to respond to specific analytes, such as metal ions, anions, pH changes, and biomolecules, enabling the creation of highly selective sensors.

This Special Issue seeks original research papers and review articles that address the design, synthesis, and application of chemical sensors based on 1,8-naphthalamides as signal units.

Prof. Dr. Ivo Grabchev
Guest Editor

Manuscript Submission Information

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Keywords

  • synthesis of novel 1,8-naphthalimides with sensor properties
  • fluorescence
  • photoinduced electron transfer
  • substituents
  • textile
  • polymer sensors
  • dendrimer sensors
  • 1,8-naphthalimide sensors with antenna effect
  • metal ions
  • anions
  • biomolecules
  • humidity
  • sensing mechanisms
  • colorimetric sensors
  • solid-state sensors

Published Papers (1 paper)

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Research

14 pages, 5995 KiB  
Article
New Water-Soluble Poly(propylene imine) Dendrimer Modified with 4-Sulfo-1,8-naphthalimide Units: Sensing Properties and Logic Gates Mimicking
by Awad I. Said, Desislava Staneva and Ivo Grabchev
Sensors 2023, 23(11), 5268; https://doi.org/10.3390/s23115268 - 1 Jun 2023
Cited by 1 | Viewed by 1274
Abstract
A new water-soluble poly(propylene imine) dendrimer (PPI) modified with 4-sulfo-1,8-naphthalimid units (SNID) and its related structure monomer analog (SNIM) has been prepared by a simple synthesis. The aqueous solution of the monomer exhibited aggregation-induced emission (AIE) at 395 nm, [...] Read more.
A new water-soluble poly(propylene imine) dendrimer (PPI) modified with 4-sulfo-1,8-naphthalimid units (SNID) and its related structure monomer analog (SNIM) has been prepared by a simple synthesis. The aqueous solution of the monomer exhibited aggregation-induced emission (AIE) at 395 nm, while the dendrimer emitted at 470 nm due to an excimer formation beside the AIE at 395 nm. Fluorescence emission of the aqueous solution of either SNIM or SNID was significantly affected by traces of different miscible organic solvents, and the limits of detection were found to be less than 0.05% (v/v). Moreover, SNID exhibited the function to execute molecular size-based logic gates where it mimics XNOR and INHIBIT logic gates using water and ethanol as inputs and the AIE/excimer emissions as outputs. Hence, the concomitant execution of both XNOR and INHIBIT enables SNID to mimic digital comparators. Full article
(This article belongs to the Special Issue 1,8-Naphthalimide Derivatives as Signal Elements in Chemical Sensors)
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