Table 2.
Relative percentage of chemical elements found by EDS on: PEDOT-PSS-CNT non-encapsulated microspheres before and after acute implantation (mean values for 4 probes, 4 spectra for each probe, 3 insertions); pHEMA-encapsulated microspheres before and after acute implant (mean values for 4 probes, 4 spectra for each probe, 3 insertions); a PEDOT-PSS-CNT non-encapsulated microsphere and a pHEMA-encapsulated one (mean values of 4 spectra each) 28 days after implantation.
| O (%weight) | C (%weight) | S (%weight) | Na (%weight) | Au (%weight) | |
|---|---|---|---|---|---|
| PEDOT-PSS-CNT probe before acute implant | 77.9 ± 2.8 | 14.6 ± 3.3 | 7.2 ± 1.3 | 0.2 ± 0.2 | – |
| PEDOT-PSS-CNT probe after acute implant | 76.7 ± 4.8 | 14.5 ± 4.6 | 6.4 ± 1.4 | 0.20 ± 0.3 | 1.3 ± 2.7 |
| pHEMA-encapsulated probe before acute implant | 67.9 ± 4.8 | 31.3 ± 5.5 | 0.7 ± 1.1 | – | – |
| pHEMA-encapsulated probe after acute implant | 69.6 ± 5.4 | 29.1 ± 5.9 | 0.5 ± 1.2 | 0.04 ± 0.1 | 0.6 ± 1.7 |
| PEDOT-PSS-CNT probe after 28 days implant | 75.9 ± 6.4 | 14.5 ± 2.9 | 3.7 ± 3.4 | 0.2 ± 0.1 | 5.2 ± 4.9 |
| pHEMA-encapsulated probe after 28 days implant | 69.5 ± 3.2 | 30.3 ± 3.4 | 0.2 ± 0.3 | – | – |