What are nanocages used for?
Owing to the strong optical absorption and scattering properties, the gold nanocages are a new class of gold-based multifunctional platforms for contrast enhancement of optical imaging, photothermal treatment of cancer, and on-demand drug delivery [74–76].
What are protein nanocages?
Abstract. Protein nanocages have been explored as potential carriers in biomedicine. Formed by the self-assembly of protein subunits, the caged structure has three surfaces that can be engineered: the interior, the exterior and the intersubunit.
Why can nanocages be used inside the body?
Nanocages can also be designed to absorb and scatter light in the near-infrared (NIR) region of the electromagnetic spectrum. Light at these wavelengths (700–900 nm) can penetrate deeply into soft biological tissue and so is perfect for optical imaging based on photoacoustic and optical-coherence tomography.
What system is used for drug delivery?
A drug delivery system (DDS) is defined as a formulation or a device that enables a therapeutic substance to selectively reach its site of action without reaching the nontarget cells, organs, or tissues.
What is nanocrystal technology?
A nanocrystal is a crystalline particle with at least one dimension measuring less than 1000 nanometers (nm), where 1 nm is defined as 1 thousand-millionth of a meter (10-9 m). Nanocrystals have a wide variety of proven and potential applications.
How are nanorods made?
Nanorods are produced by direct chemical synthesis. A combination of ligands act as shape control agents and bond to different facets of the nanorod with different strengths. This allows different faces of the nanorod to grow at different rates, producing an elongated object.
What is the difference between nanoparticles and nanocrystals?
A nanocrystal is a material particle having at least one dimension smaller than 100 nanometres (a nanoparticle) and composed of atoms in either a single- or poly-crystalline arrangement. The size of nanocrystals distinguishes them from larger crystals.
What is the difference between nanorods and nanowires?
Nanorods are thicker in comparison to nanowires. Nanowires have diameters which are much smaller than their lengths. They can be considered one dimensional structures. Nanorods have much shorter length than nanowires and their diameters are greater than the wires.
What are advantages of nanorods?
Among those 1-D nanostructures, nanorods have the advantage as it can be made from most elements (metals and nonmetals) and compounds, and the synthetic requirements for their production are more flexible than for nanotubes and nanowires. Nanorods have typical lengths of 10–120 nm.