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. 2016 Oct 7;2(10):e1601026. doi: 10.1126/sciadv.1601026

Fig. 1. The working principle of virus enrichment and concentration from field samples.

Fig. 1

(A) A field sample containing viruses (purple spheres) is collected by a cotton swab or as a tissue sample. (B) The supernatant of the field sample flows through the CNT-STEM, and the viruses are enriched within the device. Inset (right): Illustration of size-based virus enrichment by the aligned N-MWCNTs. Inset (bottom right): SEM image (scale bar, 100 nm) of the H5N2 AIV virions trapped inside the aligned N-MWCNTs. Inset (bottom left): Dark-field TEM image (scale bar, 100 nm) of enriched H5N2 AIV after the aligned N-MWCNTs structures were retrieved from the CNT-STEM.