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Bacterial capture efficiency in fluid bloodstream improved by bendable nanowires

Author

Listed:
  • Lizhi Liu

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences
    Northwest A&F University)

  • Sheng Chen

    (Michigan State University)

  • Zhenjie Xue

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zhen Zhang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xuezhi Qiao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zongxiu Nie

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Dong Han

    (National Center for Nanoscience and Technology)

  • Jianlong Wang

    (Northwest A&F University)

  • Tie Wang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Bacterial infectious diseases, such as sepsis, can lead to impaired function in the lungs, kidneys, and other vital organs. Although established technologies have been designed for the extracorporeal removal of bacteria, a high flow velocity of the true bloodstream might result in low capture efficiency and prevent the realization of their full clinical potential. Here, we develop a dialyzer made by three-dimensional carbon foam pre-grafted with nanowires to isolate bacteria from unprocessed blood. The tip region of polycrystalline nanowires is bent readily to form three-dimensional nanoclaws when dragged by the molecular force of ligand-receptor, because of a decreasing Young’s moduli from the bottom to the tip. The bacterial capture efficiency was improved from ~10% on carbon foam and ~40% on unbendable single-crystalline nanowires/carbon foam to 97% on bendable polycrystalline nanowires/carbon foam in a fluid bloodstream of 10 cm s−1 velocity.

Suggested Citation

  • Lizhi Liu & Sheng Chen & Zhenjie Xue & Zhen Zhang & Xuezhi Qiao & Zongxiu Nie & Dong Han & Jianlong Wang & Tie Wang, 2018. "Bacterial capture efficiency in fluid bloodstream improved by bendable nanowires," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-02879-9
    DOI: 10.1038/s41467-018-02879-9
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