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. Author manuscript; available in PMC: 2021 Apr 8.
Published in final edited form as: ACS Appl Mater Interfaces. 2020 Mar 26;12(14):16137–16149. doi: 10.1021/acsami.0c02463

Scheme 1.

Scheme 1.

Anisotropic complementarity in DNA-DNA hybridization directed assembly. (a) spontaneous nanoscale oxidation of nitroso carbon dots leads to multicolored particles (i) and separated by chromatography (ii); surface attachment of two complementary ssDNA; (b) quenching through proximity driven energy transfer between two systems. Red arrow (↑) indicates fluorescence intensity enhancement; Double headed arrow (↔) indicates hybridization between two complementary ssDNA.