Bioinspired Encapsulation of Living Cells within Inorganic Nanoshells - Cell Surface Engineering: Fabrication of Functional Nanoshells - page 55

d n 8 y 4 n g | 8

.

Figure 4.5 (a) Schematic representation of biocompatible AuNPs seeding and

metallization on bacterial cell envelope. The gold enhanced bacterial
cells were grown and divided, finally resulting in metallic asymmetry.
(b) AuNPs seeded E. coli (denoted as ''S'') displayed no difference in
growth rates and chemotaxis properties (right inset) compared to
controls (denoted as ''C''). (c) Backscattered scanning electron (BSE)
microscopy image of E. coli, poles of which are coated with gold. The
presence of gold was confirmed by the elemental profiling of energy-
dispersive X-ray spectroscopy across the red line.
Reproduced with permission from the Royal Society of Chemistry
(Copyright 2010). 44