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Reaction conditions used in the synthesis of AuNPRn (n = 1–5).
| AuNPRn | HAuCl4 (mM) |
Root Extract (mg/mL) | Reaction Volume (mL) |
pH | Sonication Time (min) |
|---|---|---|---|---|---|
| AuNPR1 | 1.5 | 5.47 | 15.24 | 7.0 | 10 |
| AuNPR2 | 1.5 | 7.39 | 20.30 | 6.4 | 10 |
| AuNPR3 | 1.5 | 7.38 | 20.32 | 8.4 | 40 |
| AuNPR4 | 2.0 | 8.16 | 18.38 | 7.8 | 40 |
| AuNPR5 | 3.0 | 5.54 | 15.04 | 7.8 | 40 |
