Abstract: In some embodiments, DNA-capped nanoparticles are used to define a degree of crystalline order in assemblies thereof. In some embodiments, thermodynamically reversible and stable body-centered cubic (bcc) structures, with particles occupying <˜10% of the unit cell, are formed. Designs and pathways amenable to the crystallization of particle assemblies are identified. In some embodiments, a plasmonic crystal is provided. In some aspects, a method for controlling the properties of particle assemblages is provided. In some embodiments a catalyst is formed from nanoparticles linked by nucleic acid sequences and forming an open crystal structure with catalytically active agents attached to the crystal on its surface or in interstices.

Abstract: In some embodiments, DNA-capped nanoparticles are used to define a degree of crystalline order in assemblies thereof. In some embodiments, thermodynamically reversible and stable body-centered cubic (bcc) structures, with particles occupying <˜10% of the unit cell, are formed. Designs and pathways amenable to the crystallization of particle assemblies are identified. In some embodiments, a plasmonic crystal is provided. In some aspects, a method for controlling the properties of particle assemblages is provided. In some embodiments a catalyst is formed from nanoparticles linked by nucleic acid sequences and forming an open crystal structure with catalytically active agents attached to the crystal on its surface or in interstices.

Abstract: In some embodiments, DNA-capped nanoparticles are used to define a degree of crystalline order in assemblies thereof. In some embodiments, thermodynamically reversible and stable body-centered cubic (bcc) structures, with particles occupying <˜10% of the unit cell, are formed. Designs and pathways amenable to the crystallization of particle assemblies are identified. In some embodiments, a plasmonic crystal is provided. In some aspects, a method for controlling the properties of particle assemblages is provided. In some embodiments a catalyst is formed from nanoparticles linked by nucleic acid sequences and forming an open crystal structure with catalytically active agents attached to the crystal on its surface or in interstices.

Abstract: The present invention is a method of making a nanocluster. The method comprises providing a surface comprising at least one anchoring biomolecule, wherein the surface is in a solution; adding an initial recognition-nano-component to the solution wherein the initial recognition-nano-component comprises i) a nanoparticle and one specifically-bindable-biomolecule, or ii) a nanoparticle and two different types of specifically-bindable-biomolecules, wherein a biomolecule of the initial recognition-nano-component specifically binds to the anchoring biomolecule; and adding a releasing biomolecule to the solution, wherein the releasing biomolecule binds to the anchoring biomolecule with a greater binding strength than the anchoring biomolecule binds to the initial recognition-nano-component, or wherein the releasing biomolecule binds to the initial recognition-nano-component with a greater binding strength than anchoring biomolecule binds to the initial recognition-nano-component, thereby making a nanocluster.