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Table 1 Nanoparticle properties

From: Chitosan functionalisation of gold nanoparticles encourages particle uptake and induces cytotoxicity and pro-inflammatory conditions in phagocytic cells, as well as enhancing particle interactions with serum components

Sample Surface coating Z-potential (mV) Size nm pHa Concentration (mg/ml) Solvent
Gold nanoparticles (AuNPs)
 Au_SC SCb −45 ± 0.2 10 ± 1.5 7 0.032 Sodium citrate 2.2 mM
 Au_CHIT-L 0.001 % Chit. +23 ± 1.0 7 ± 3 5 0.025 Chitosan 0.001 %c
 Au_CHIT-H 0.1 % Chit. +65 ± 1.0 7 ± 3 5 0.025 Chitosan 0.1 %
  1. Sample ID, functionalisation, surface charge, size, pH in solvent, concentration of stock, and suspension solvent
  2. aThe acid or basic pH values turn to physiologically pH (around 7–8) when diluted at 1:10 (v/v) in cell culture medium
  3. b SC sodium citrate
  4. c1 % = 1 g chitosan (chit.)/100 ml of solution