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 journalArticlepeer-review

46 Citations (Scopus)


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 languageEnglish
Pages (from-to)541-545
Number of pages5
JournalAdvanced Functional Materials
Issue number4
Publication statusPublished - 1 Apr 2005


  • Anthocyanins
  • flowers
  • Flavylium cation


Dive into the research topics of 'Write-read-erase molecular-switching system trapped in a polymer hydrogel matrix'. Together they form a unique fingerprint.

Cite this