Fig. 2From: Modulating tumour metabolism enhances gold nanoparticle radiosensitisation in HPV-negative head and neck cancerIntracellular uptake and localisation of AuNPs within FaDu, CAL27 and CAL33 cells under atmospheric oxygen conditions using Cytoviva darkfield/hyperspectral imaging. Cells were treated with AuNPs for 24Â h, fixed and mounted with DAPI before imaging. Representative images include enhanced dark field and the corresponding hyperspectral images, overlaid with a spectral angle map (SAM) representing AuNPs in redBack to article page