Figure 1
Homogeneous Co nanoparticle (diameter 11.4 nm) array self-assembled on the surface of silicon.
Figure 2
Manipulation of Cu atoms (light circles) on oxidised surface of copper at 78 K. On the right is a calculation scheme for manipulation (courtesy: I. Stich, paper by Bamidele et al., 2014).
Figure 3
Polymer nanoparticles with built-in magnetic nanoparticle and aliskiren drug (courtesy: P. Kopcansky, paper by Antal et al., 2015).
Figure 4
Localisation of magnetic nanoparticles (a) using a focused magnet (b) (courtesy: P. Kopcansky, Inst. Exp. Phys. SAS, Kosice).
Table 1
VOCs in the patient's breath.
| Cancer | Detected VOCs in concentrations decreasing from left to right |
| Lung | 2-Ethylhexanol, toluene + six more |
| Colorectal | 2-Ethylhexanol, 5-ethyl-3-methyloctane + seven more |
| Ovarian | Toluene, styrene, 2-ethylhexanol, 5-ethyl-3-methyloctane + six more |
| Bladder | 2-Ethylhexanol, ethanol, styrene + six more |
| Prostate | 2-Ethylhexanol, 5-ethyl-3-methyloctane, toluene + six more |
[i] VOCs: volatile organic compounds.
Figure 5
Acetone sensor with four electrical terminals in the housing. Two terminals are used to measure conductivity of the sensitive layer and the other two to heat the sensor to an operating temperature of about 450°C. In the figure, the ratio of conductivity G in the presence of acetone to conductivity in the clean air vs. the concentration of acetone in air is given. Functionalisation by palladium nanoparticles (bottom part) increases the sensitivity of the device.
Figure 6
Schematic representation of graphene – a carbon layer in the hexagonal structure.