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(a) Representative image and (b) spectrum of single A549/IGF-1R cell bound with anti-IGF-1R immunolabeled silver nanospheres. (Scale bar = 10 μm.) (c) Distribution of peak scattering wavelength of A549/IGF-1R cells bound with anti-IGF-1R 100 nm silver nanospheres. Distribution fit has peak wavelength of 520.8 ± 11.3 nm (N = 102).
