Low Density Porous 3D Nanostructure for Payload Capacity

The patent implements a nested structure where a core nanoparticle is embedded within a porous 3-D structure. The core nanoparticle (containing payloads) is nested inside the porous shell, creating a hierarchical configuration that maximizes payload capacity while maintaining structural integrity. This nested arrangement allows multiple functional components to coexist within a single nanostructure.

The patent employs a porous 3-D structure as the outer shell of the nanostructure. This porous configuration provides high surface area and internal volume for payload association, enabling enhanced payload capacity. The porous nature also facilitates payload loading and release while maintaining a relatively low overall density of the nanostructure.

The patent applies local quality by concentrating the payload capacity in the porous 3-D shell region while maintaining a small core nanoparticle size. The porous structure provides the necessary volume for payload association without requiring a proportional increase in overall particle size. This localized payload accommodation allows enhanced capacity while preserving favorable circulation characteristics associated with smaller particle sizes.

The patent creates a composite nanostructure combining a core nanoparticle material with a porous 3-D shell material. This composite configuration allows the structure to exhibit properties of both components: the core provides stability and targeting capabilities, while the porous shell provides high payload capacity. The composite nature enables optimization of both payload capacity and circulation time by selecting appropriate material combinations.