SS, PDA, and Tb3+, respectively. (J) A fluorescence image of DNA-SWCNT composite membrane stained by GelRed. (K) A fluorescence image of DNA-Tb3+ composite membrane. (L) A laser confocal microscopic image of DNA-SWCNT composite membrane stained by GelRed. (M and N) Cross-sectional SEM images of DNA-SWCNT and DNA-iron oxide particles composite membrane, respectively. (O and P) A photograph and a fluorescence image (GelRed), respectively, of a pattern consisting of groups of diamond-shaped holes by a negative etching of a DNA-SWCNT membrane. (Q and R) A photograph and a fluorescence image, respectively, of a positive pattern consisting of groups of diamond shapes by spraying Tb3+ solution on a masked DNA membrane. (S and T) A photograph and a fluorescence image, respectively, of a four-component biomass DNA flower fused together. (U) The DNA flower closed by applying a magnetic field. (scale bars: 1 cm). (图片来源JACS)
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