Non-radiative energy transfer in N-isopropylacrylamide gel

Yoshinori Kajima, Yasuhiko Yagi, Hiroshi Inomata, Shozaburo Saito

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Non-radiative energy transfer from donor to acceptor probes attached to the network chains of an N-isopropylacrylamide (NIPA) gel was investigated in water at various temperatures through fluorescence spectrum measurements. Naphthalene or biphenyl was used as a donor, and pyrene as an acceptor. Two types of doubly labeled NIPA gels (NIPA/2-vinylnaphthalene/pyrenylacrylamide and NIPA/4-vinylbiphenyl/pyrenylacrylamide) were prepared by copolymerization. The non-radiative transfer was observed for both gels. The ratio of emission intensity from donor to that from acceptor was strongly dependent on temperature, which indicates that the non-radiative energy transfer in doubly labeled NIPA gels could be controlled by means of the volume change with temperature.

Original languageEnglish
Pages (from-to)127-134
Number of pages8
JournalPolymer Gels and Networks
Issue number2
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Pharmaceutical Science
  • Polymers and Plastics


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