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Firefly-mimicking intensive and long-lasting chemiluminescence hydrogels

Author

Listed:
  • Yating Liu

    (University of Science and Technology of China)

  • Wen Shen

    (University of Science and Technology of China)

  • Qi Li

    (University of Science and Technology of China)

  • Jiangnan Shu

    (University of Science and Technology of China)

  • Lingfeng Gao

    (University of Science and Technology of China)

  • Mingming Ma

    (University of Science and Technology of China)

  • Wei Wang

    (Nanjing University)

  • Hua Cui

    (University of Science and Technology of China)

Abstract

Most known chemiluminescence (CL) reactions exhibit flash-type light emission. Great efforts have been devoted to the development of CL systems that emit light with high intensity and long-lasting time. However, a long-lasting CL system that can last for hundreds of hours is yet-to-be-demonstrated. Here we show firefly-mimicking intensive and long-lasting CL hydrogels consisting of chitosan, CL reagent N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and catalyst Co2+. The light emission is even visible to naked eyes and lasts for over 150 h when the hydrogels are mixed with H2O2. This is attributed to slow-diffusion-controlled heterogeneous catalysis. Co2+ located at the skeleton of the hydrogels as an active site catalyzes the decomposition of slowly diffusing H2O2, followed by the reaction with ABEI to generate intensive and long-lasting CL. This mimics firefly bioluminescence system in terms of intensity, duration time and catalytic characteristic, which is of potential applications in cold light sources, bioassays, biosensors and biological imaging.

Suggested Citation

  • Yating Liu & Wen Shen & Qi Li & Jiangnan Shu & Lingfeng Gao & Mingming Ma & Wei Wang & Hua Cui, 2017. "Firefly-mimicking intensive and long-lasting chemiluminescence hydrogels," Nature Communications, Nature, vol. 8(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01101-6
    DOI: 10.1038/s41467-017-01101-6
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