Table 1. Design of Different Particles Prepared in This Work.
| entry | particlea | diameter/nm | spacer | dye | additional components |
|---|---|---|---|---|---|
| 1 | NH2-PEG-NP500 | 500 | PEG | ||
| 2 | Cy5-PEG-NP500 | 500 | PEG | Cy5 | |
| 3 | Cy5-PEG2-NP500 | 500 | (PEG)2 | Cy5 | |
| 4 | Cy5-PEG3-NP500 | 500 | (PEG)3 | Cy5 | |
| 5 | Fmoc-Lys(Cy5)-NP500 | 460 | lysine | Cy5 | |
| 6 | Fmoc-Lys(Cy5)-NP900 | 900 | lysine | Cy5 | |
| 7 | Strp-Lys(Cy5)-NP1200 | 1200 | lysine | Cy5 | streptavidin |
| 8 | Pd(0)-Cy5-PEG-NP500 | 500 | PEG | Cy5 | Pd(0) |
| 9 | Pd(II)-Cy5-PEG-NP500 | 500 | PEG | Cy5 | Pd(II) |
All NPs were covalently bound to their cargo through amide bonds. PEG = 1-amino-4,7,10-trioxa-13-tridecanamine succinamyl.