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. 2015 Oct 5;5:13967. doi: 10.1038/srep13967

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(a) SPR intensity signal resulting from interaction of 18-4 functionalized SPR chip (or functionalized with reference peptide) with MCF7 or MCF10A cells. (b) SPR sensitivity spectra for peptide 18-4 against various concentrations of cancer cells (MCF7) at a constant flow rate of 10 μL min⁻¹.