Figure 2
From: Enhanced transcription and translation in clay hydrogel and implications for early life evolution

Localized concentration and protection effects of nucleic acids in clay hydrogel.
(a) Attachment efficiency of DNA/RNA on clay hydrogel. (b) Protection of DNA in clay hydrogel environment against DNase. Lane 1: DNA; Lane 2 and 3: DNA plus 0.01 u and 0.05 u DNase, respectively; Lane 4: clay; Lane 5: DNA plus clay; Lane 6 and 7: DNA and clay plus 0.01 u and 0.05 u DNase, respectively. (c) Protection of RNA in clay hydrogel environment against RNase. Lane 1: RNA; Lane 2 and 3: RNA plus 2 u and 4 u RNase, respectively; Lane 4: clay; Lane 5: RNA plus clay; Lane 6 and 7: RNA and clay plus 2 u and 4 u RNase, respectively. (d) The function test of DNA as the template of PCR with the protection of clay hydrogel. Lane 1: without the protection of clay hydrogel; Lane 2–4: with the protection of clay hydrogel, with a variety of clay amount: 200, 300 and 500 ng clay/1 ng template.