Intracellular delivery of gold nanoparticles assisted by monolayer functionalisation with HA2/TAT peptides (Figure 1 dataset)

Abstract

<p>HeLa cells were incubated with or without nanoparticles for 3h, fixed and imaged by photothermal microscopy.<br>When present nanoparticles were of a 5 nm diameter at a concentration of 500 nM.</p> <p>Images are two-plane TIFF images of the nanoparticles uptake by HeLa cells. The first image plane is the brightfield image, and the second image plane is the photothermal image.</p> <p>Cells_only_[1-4].tif are images of cells incubated without nanoparticles.<br>100%_capping_peptides_[1-4].tif are images of cells incubated with nanoparticles coated with a 4:1 ratio of CALNN : CCALNN-PEG peptides (capping peptides).<br>10%_dHA2_[1-4].tif are images of cells incubated with nanoparticles coated with 10 % CCALNN–dHA2 peptides and 90% capping peptides.<br>1%_Tat_[1-3].tif are images of cells incubated with nanoparticles coated with 1 % CALNN–TAT peptides and 99% capping peptides.<br>10%_dHA2_&_1%_Tat_[1-4].tif are images of cells incubated with nanoparticles coated with 10 % CCALNN–dHA2 peptides, 1 % CALNN–TAT peptides and 89% capping peptides.</p