Fig. 2: Synthesis of binary and ternary SiNP/CNT-DNA nanocomposite materials. | Nature Communications

Fig. 2: Synthesis of binary and ternary SiNP/CNT-DNA nanocomposite materials.

From: Carbon-nanotube reinforcement of DNA-silica nanocomposites yields programmable and cell-instructive biocoatings

Fig. 2: Synthesis of binary and ternary SiNP/CNT-DNA nanocomposite materials.

a Schematic representation of RCA-based nanocomposite synthesis. DNA oligonucleotide primer-modified SiNP-P and/or CNT-P are used for enzymatic cyclisation of RCA template T. Enzymatic primer extension yields the corresponding binary (S100/C100) or ternary (SCx) DNA nanocomposites. The acronyms of S100/C100/SCx are defined in Table 1. The typical macroscopic viscosity of the materials is shown in representative photographs. b–f Representative SEM images of composite materials. The arrows point at CNT. g Raman map of the intensity of the CNT-G-mode band (integral 1550–1605 cm−1) confirming the presence of CNT in C100. The color bar from blue to magenta indicates the gradual increase of signal intensity.

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