Journal
MATERIALS RESEARCH EXPRESS
Volume 6, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/ab2075
Keywords
nanostructures; micropillars; hierarchical structures; biointerface; cell capture
Categories
Funding
- Scientific Research Project of Education Department of Guangdong Province [2017KTSCX079]
- Guangdong medical science and research foundation [A2018279, A2019493]
- Science and research projects for Traditional Chinese medicine of Guangdong [20172086, 20191191]
- Zhanjiang Science and Technology Plan [2013B01227]
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TiO2 films with lotus leaf-like topography were fabricated as hierarchical biointerfaces for efficient capture of cancer cells. Compared to mono-micro or nano-biointerfaces, these hierarchical biointerfaces exhibited a higher cell-capture efficiency, which was attributed to the synergistic effect of micropillar and nanowire arrays. The micropillars provided a large number of potential attachment sites for cancer cells, while nanostructures introduced topographic interaction between cells and the biointerface. The synergistic effect between micropillar and nanowire arrays enhanced the cell-material interaction, and therefore these hierarchical biointerfaces appeared more favorable for cell attachment, spreading and proliferation. These results may provide promising guidance to design or optimize the surface structure ofbiointerfaces for biomedical application.
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