Porous nanosheet wrapping for live imaging of suspension cells

Hong Zhang, Takuto Aoki, Kanae Hatano, Kazuya Kabayama, Masaru Nakagawa, Koichi Fukase, Yosuke Okamura

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)


    In the field of cell imaging, it is still a practical challenge to obtain the high quality live imaging of suspension cells, mainly due to undesirable cell movement in the imaging field during observation. This study describes a porous nanosheet wrapping method to noninvasively immobilize suspension cells for their live imaging. Perforated nanopores are fabricated on a nanosheet to enable the addition of external chemicals to cells, ranging from small molecules to macromolecules. Through several case studies, such as the live imaging of membrane staining of liposomes, transferrin endocytosis of B cells, and activation of platelets, it is verified that the confined space made by the nanosheet could provide a hydrodynamically stable environment for suspension cells, even if an aqueous stimulus is added through the nanopores in a static or a flowing condition. With this method, the live imaging of the whole activation process on a specific suspension cell in the imaging field is achieved, which is not feasible with the existing cell immobilization methods. This study suggests that the method of porous nanosheet wrapping will facilitate the visualization of the dynamic functions of suspension cells.

    Original languageEnglish
    Pages (from-to)6622-6628
    Number of pages7
    JournalJournal of Materials Chemistry B
    Issue number41
    Publication statusPublished - 2018

    ASJC Scopus subject areas

    • Chemistry(all)
    • Biomedical Engineering
    • Materials Science(all)


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