Multi-reversible thermochromic polydiacetylene-CuZnFe2O4 magnetic nanocomposites with tunable colorimetric response to acid-base

Polydiacetylenes (PDAs) are materials that can be applied as colorimetric sensors for detecting a wide range of stimuli. The commercial PDA materials, constituting carboxylic headgroup, exhibit irreversible thermochromism and response to base. To extend the utilization, their sensing properties are...

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Bibliographic Details
Published inColloids and surfaces. A, Physicochemical and engineering aspects Vol. 647; p. 129117
Main Authors Andina, Rosabiela Irfa, Kingchok, Sarawut, Laohhasurayotin, Kritapas, Traiphol, Nisanart, Traiphol, Rakchart
Format Journal Article
LanguageEnglish
Published Elsevier B.V 20.08.2022
Subjects
Acid/base sensor
Colorimetric sensor
Magnetic nanocomposites
Polydiacetylene
Magnetic nanocomposites
Polydiacetylene
Acid/base sensor
Colorimetric sensor
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Summary:Polydiacetylenes (PDAs) are materials that can be applied as colorimetric sensors for detecting a wide range of stimuli. The commercial PDA materials, constituting carboxylic headgroup, exhibit irreversible thermochromism and response to base. To extend the utilization, their sensing properties are often tuned by structural modification of PDA headgroup and/or side chain. In this study, we introduce a versatile method for fine tuning the properties of polydiacetylene (PDA) materials by incorporating CuZnFe2O4 magnetic nanoparticles. The resultant PDA/CuZnFe2O4 magnetic nanocomposites (MNCs) exhibit multi-reversible thermochromism with different shades of color transition. The MNCs also response to both acid and base. In addition, the sensitivity can be tuned by varying CuZnFe2O4 ratio. The PDA/CuZnFe2O4-MNCs are localizable via the application of magnetic field. These multifunctional MNCs show potential in various advanced technologies such as smart paints, anti-counterfeiting labels, electro-thermochromic displays and localizable acid/base sensors. The preparing process of MNCs is rather simple, making it suitable for industrial utilization. [Display omitted] •Multi-reversible thermochromic polydiacetylene-CuZnFe2O4 nanocomposites are synthesized.•Different shades of color transition are obtained by varying the CuZnFe2O4 ratio.•The nanocomposites exhibit dual colorimetric response to both acid and base.•Sensitivity of the sensors can be tuned by varying the CuZnFe2O4 ratio.•The sensors can be localized at targeted area by applying external magnetic field.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2022.129117