Figure 5.
Schematic depicting light-induced release of nucleic acids from AuNS. At close proximity, the fluorescent tag on the oligonucleotide is quenched by the LSRP of the gold particle; after release, the distribution of the oligonucleotide can be tracked by the fluorescent tag. (A) dsRNA is covalently attached to the gold particle via thiol bonds; after a laser pulse, the bond is broken and dsRNA is released. (B) The sense strand of the oligonucleotide is bound to the surface of the gold particle; after a laser pulse, the antisense strand of the oligonucleotide is freed.