Fig. 7 | Nature Communications

Fig. 7

From: Complex assembly from planar and twisted π-conjugated molecules towards alloy helices and core-shell structures

Fig. 7

Optical characterization of BA@(BA)x(BN)1-x core-shell structures. a–d Upon excitation with (a, c) blue and (b, d) green light, fluorescence microscopy images of BA@(BA)x(BN)1-x core-shell structures obtained by mixing BA tubes with 2 mL of a saturated supernatant of (BA)0.72(BN)0.28 alloy helices at (a, b) low and (c, d) high magnification. Scale bars, 50 μm in a, b, and 25 μm in c, d

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