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Fig. 1 | Nano Convergence

Fig. 1

From: Nanotechnology in emerging liquid biopsy applications

Fig. 1

a An aptamer-AuNPs strip biosensor for visual detection of circulating tumor cells (CTCs). b Silica-coated gold nanobipyramids in combination with the fluorescent dye Cy7, which fluorescence is quenched by Cu2+ ions and recovered by pyrophosphates (PPi) that are produced during rolling circle amplification (RCA) reaction triggered by miRNA target. c an electrochemical detection of miRNA captured onto an electrode by deposited AuNPs-DNA. The signal is generated by an intercalating redox dye. d AuNPs decorated with molybdenum sulfide (MoS2) nanosheets are used for surface-enhanced Raman spectroscopy (SERS) signal enhancement in miRNA analysis. AuNPs gold nanoparticles, TZ test zone, CZ control zone, SA streptavidin, B biotin

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