Confirmation of the functionalization of MNPs and AuNPs was accomplished in our previous publication (Zhang et al., 2009).
1-Ethyl-3-[3-dimethylaminopropyl] carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) were used to crosslink the carboxylic group on NTs and the amine group on bio-barcoded
AuNPs.