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. 2021 Jul 21;13(15):2395. doi: 10.3390/polym13152395

Figure 1.

Figure 1

Illustration of RCA synthesis of nanocomposite gels containing an expression vector. (a) DNA-modified silica nanoparticles (SiNP) and DNA-modified carbon nanotubes (CNT) are used in different ratios for rolling circle amplification (RCA) interweaving a protein-coding plasmid. Proportions of SiNP (80 nm diameter), CNT (1 µm × 0.83 nm) and coding plasmid (6200 bp) are not sketched to scale. Gels were synthesized in different formats, either in microliter volumes termed as bulk hydrogels (b), or inside water-in-oil emulsion droplets (c) to yield microgels.