JOURNAL ARTICLE

Ion transport in thermally responsive pectin film.

  • Published In: Applied Physics Letters, 2023, v. 123, n. 2. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Wang, Linghui; Kim, Tae-Hyun; Costanza, Vincenzo; Higdon, Nicholas J.; Daraio, Chiara 3 of 3

Abstract

This article investigates the ion transport mechanisms and temperature sensitivity of calcium chloride (CaCl₂)-crosslinked pectin, a biopolymer with potential applications in wearable devices and infrared sensors due to its high ionic conductivity response to temperature. The study identifies calcium ions as the dominant charge carriers and demonstrates that the temperature-dependent conductivity arises from changes in ion mobility rather than ion number density. By comparing pectin crosslinked with nine different multivalent ions, the research finds a positive correlation between temperature response and the binding energy of metal ions to pectin, with copper ions showing the highest temperature sensitivity. These findings provide fundamental insights for designing temperature-sensitive polymers and organic electronic materials.

Additional Information

  • Source:Applied Physics Letters. 2023/07, Vol. 123, Issue 2, p1
  • Document Type:Article
  • Subject Area:Agriculture and Agribusiness
  • Publication Date:2023
  • ISSN:0003-6951
  • DOI:10.1063/5.0142020
  • Accession Number:164937996
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