Write-read-erase molecular-switching system trapped in a polymer hydrogel matrix

Francisco Galindo; João C. Lima; Santiago V. Luis; A. Jorge Parola; Fernando Pina

doi:10.1002/adfm.200400274

Write-read-erase molecular-switching system trapped in a polymer hydrogel matrix

Francisco Galindo, João C. Lima, Santiago V. Luis, A. Jorge Parola, Fernando Pina

Research output: Contribution to journal › Article

42 Citations (Scopus)

Abstract

In this paper we report the encapsulation of the compound 4',7-dihydroxyflavylium in a water-permeable crosslinked poly(2-hydroxyethyl methacrylate) matrix. The water permeability of the polymer and its transparency allow the use of pH and light stimuli to attain different states on the network defined by the various chemical reactions (multistate/multifunctional system). Unlike in water, in the polymer the compound 4',7-dihydroxyflavylium encapsulated exhibits a thermal barrier between the cis-and trans-chalcones, a necessary requirement to define a write-read-erase cycle.

Original language	English
Pages (from-to)	541-545
Number of pages	5
Journal	Advanced Functional Materials
Volume	15
Issue number	4
DOIs	https://doi.org/10.1002/adfm.200400274
Publication status	Published - 1 Apr 2005

Keywords

Anthocyanins
flowers
Flavylium cation

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10.1002/adfm.200400274Licence: CC BY-NC

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abstract = "In this paper we report the encapsulation of the compound 4',7-dihydroxyflavylium in a water-permeable crosslinked poly(2-hydroxyethyl methacrylate) matrix. The water permeability of the polymer and its transparency allow the use of pH and light stimuli to attain different states on the network defined by the various chemical reactions (multistate/multifunctional system). Unlike in water, in the polymer the compound 4',7-dihydroxyflavylium encapsulated exhibits a thermal barrier between the cis-and trans-chalcones, a necessary requirement to define a write-read-erase cycle.",

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AU - Galindo, Francisco

AU - Lima, João C.

AU - Luis, Santiago V.

AU - Parola, A. Jorge

AU - Pina, Fernando

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KW - Flavylium cation

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