Formation of 1D and 2D Gold Nanoparticle Arrays by Divalent DNA–Gold Nanoparticle Conjugates

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Divalent DNA-AuNP (gold nanoparticle) conjugates comprising two DNA strands at diametrically opposed positions are prepared. Highly linear 1D and tetragonal lattice-like 2D AuNP arrays are constructed using the conjugates and DNA assemblies based on T- and double-crossover motifs and the Holliday junction.