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. 2018 Apr 3;9:1293. doi: 10.1038/s41467-018-03650-w

Fig. 2.

Fig. 2

Visualization of precise ssDNA inclusion in the pore of Ni-IRMOF-74-II. a Excellent match between the size of ssDNA and that of Ni-IRMOF-74-II pores leads to inclusion of ssDNA with atomic accuracy. b PXRD patterns of Ni-IRMOF-74-II samples tested in various aqueous solutions. Wavelength of X-ray sources, λ = 1.5406 Å. c–f PXRD patterns of MOF samples loaded with different amounts of ssDNA in weight percent (0%, 2.3%, 4.7%, and 6.9%, respectively). Wavelength of X-ray sources, λ = 1.5406 Å. The experimental (red), refined (black), and difference (green) patterns are displayed. The Bragg positions are marked as pink bars. g Electron distribution map of ssDNA in Ni-IRMOF-74. Carbon (gold), nitrogen (blue), oxygen (red), and phosphorous (pink)