Figures & data
Table 1. Amino acid composition analysis of the extract.
Figure 4. HR-TEM images of sk-AuNPs. The scale bars represent (A) 20 nm, (B) 50 nm and (C) 2 nm. The distances between two neighbouring lattice fringes were measured as 0.23 nm and 0.25 nm. (D) Size histogram of sk-AuNPs.
![Figure 4. HR-TEM images of sk-AuNPs. The scale bars represent (A) 20 nm, (B) 50 nm and (C) 2 nm. The distances between two neighbouring lattice fringes were measured as 0.23 nm and 0.25 nm. (D) Size histogram of sk-AuNPs.](/cms/asset/45be4a05-77f2-48c5-a0a4-45e42ec676b8/ianb_a_1479710_f0004_c.jpg)
Figure 5. HR-TEM images and size histogram of cf-sk-AuNPs. After the centrifugation of sk-AuNPs, the pellet was recovered and re-dispersed in (A, B and C) deionised water, (D, E and F) PBS and (G, H and I) full media.
![Figure 5. HR-TEM images and size histogram of cf-sk-AuNPs. After the centrifugation of sk-AuNPs, the pellet was recovered and re-dispersed in (A, B and C) deionised water, (D, E and F) PBS and (G, H and I) full media.](/cms/asset/dacf9fbd-981d-4f6c-9b5d-c85c9ae9b1d2/ianb_a_1479710_f0005_c.jpg)
Table 2. On-the-shelf colloidal stability of cf-sk-AuNPs for 27 days.
Figure 6. Colloidal stability of sk-AuNPs in PBS, DMEM and full media. sk-AuNPs were centrifuged and re-dispersed in the following solutions: (A and B) PBS, (C and D) DMEM and (E and F) full media. (A, C and E) UV–visible spectra and (B, D and F) hydrodynamic size were measured over 48 h on the shelf.
![Figure 6. Colloidal stability of sk-AuNPs in PBS, DMEM and full media. sk-AuNPs were centrifuged and re-dispersed in the following solutions: (A and B) PBS, (C and D) DMEM and (E and F) full media. (A, C and E) UV–visible spectra and (B, D and F) hydrodynamic size were measured over 48 h on the shelf.](/cms/asset/1617c303-f356-45e1-93d0-9373b5270cf3/ianb_a_1479710_f0006_c.jpg)
Table 3. Colloidal stability of sk-AuNPs which were centrifuged and re-dispersed in PBS, DMEM and full media.
Table 4. DPPH radical scavenging activity of cf-sk-AuNPs.
Figure 8. Cytotoxicity of cf-sk-AuNPs on seven cancer cells. (A) A549, (B) AGS, (C) HeLa, (D) HepG2, (E) HT29, (F) MDA-MB-231 and (G) PANC-1.
![Figure 8. Cytotoxicity of cf-sk-AuNPs on seven cancer cells. (A) A549, (B) AGS, (C) HeLa, (D) HepG2, (E) HT29, (F) MDA-MB-231 and (G) PANC-1.](/cms/asset/18e74416-315b-4593-afd0-be838c326d8e/ianb_a_1479710_f0008_b.jpg)