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Sample name     CiAuNPs-1
Surface ligand      Citrate
Solvent matrix      Water
Solvent dielectric constant (25 ◦C)    78.4
Initial concentration (mol/L)    9.42¡Á10−8
Core size, D (nm)     4.61 ¡À 0.48
¦Å (M−1 cm−1)    (8.56 ¡À 0.09)¡Á106

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