Table 2.
Nanomaterial characterization.
| NP abbreviation | Base material | Coata | Zeta potential (mV) | Average diameter (nm) | Count | Std. Dev. | Min/Max diameter (nm) | Hydro-dynamic diameter (nm) |
|---|---|---|---|---|---|---|---|---|
| 20nmAgCit | Silver | Citrate | −37 | 19.8 | 75 | 2.0 | 12.4/23.6 | 25.5 |
| 20nmAgBPEI | Silver | BPEI | 53 | 18.7 | 101 | 2.6 | 8.3/23.0 | 54.8 |
| 20nmAgPVP | Silver | PVP | −28 | 20.4 | 100 | 2.7 | 10.0/25.6 | 24.3 |
| 20nmAgPEG | Silver | PEG | −17 | 22.9 | 110 | 2.8 | 9.4/28.6 | 44.3 |
| 110nmAgCit | Silver | Citrate | −44 | 106.2 | 114 | 9.2 | 82.5/126.1 | 115.1 |
| 110nmAgPVP | Silver | PVP | −29 | 107.9 | 75 | 7.2 | 88.2/123.5 | 128.6 |
| 110nmAgPEG | Silver | PEG | 0.4 | 111.4 | 100 | 10.7 | 47.2/136.8 | 127.4 |
| 10nmAgCit | Silver | Citrate | −36 | 8.8 | 112 | 1.7 | 3.9/15.9 | 14.1 |
| 20nmAuNP | Gold | Citrate | −40 | 18.7 | 140 | 1.7 | 15.7/23.4 | 21.7 |
| 550rAgPlates | Silver | PVP | – | 36.6 | 100 | 6.6 | 20.1/56.9 | N/A (plates absorbance too close to laser) |
| 1100rAgPlates | Silver | PVP | −16 | 149.1 | 103 | 27.5 | 80.3/210.9 | 164 |
Characterization data from nanomaterials used in this study.
a
Particles were surface functionalized with citrate, branched polyethyleneimine (BPEI), polyvinylpyrrolidone (PVP), or polyethylene glycol (PEG).