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Fig. 1 | Journal of Nanobiotechnology

Fig. 1

From: A pump-free and high-throughput microfluidic chip for highly sensitive SERS assay of gastric cancer-related circulating tumor DNA via a cascade signal amplification strategy

Fig. 1

SEM images of Cu2O octahedra at different magnifications: A low magnification and B high magnification. Representative C TEM image and D HRTEM images of Cu2O octahedra. E SAED images, F EDS spectrum and G UV–Vis–NIR absorption spectrum of Cu2O octahedra. H SERS spectra of 4-MBA-labelled Cu2O octahedra and pure 4-MBA

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Journal of Nanobiotechnology

ISSN: 1477-3155

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