Nanoparticles that "remember" temperature

Rafal Klajn, Kevin P. Browne, Siowling Soh, Bartosz A. Grzybowski

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


In summary, we have described nanoparticle-based sensors in which the temperature history of the sample translates into NP aggregation and ensuing color changes. The operation of this system rests on the ability to photoisomerize the NPs in the solid state and on the solid matrix preventing the "metastable" NPs from spontaneous aggregation until a specific condition is fulfilled (here, T>TM). Future research on metastable NP materials can have ramifications for other chemical sensors, in which the metastable state relaxes upon specific environmental stimulus.

Original languageEnglish
Pages (from-to)1385-1387
Number of pages3
Issue number13
Publication statusPublished - Jul 5 2010


  • Memory
  • Nanoparticles
  • Photoresponsive materials
  • Sensors

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)

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