Plasmonic-magnetic bifunctional nanotubes for biological applications
View Patent ↗The present invention includes nanotubes or rods, methods and arrays using plasmonic-magnetic bifunctional nanotubes or rods comprising: one or more silica nanotubes or rods; one or more nanomagnets embedded in a portion of the silica nanotubes or rods; and plasmonic metal nanoparticles uniformly coating in or on at least a portion of the surface of the nanomagnets and the silica nanotubes surface-coated.
1. A plasmonic-magnetic bifunctional nanocapsule comprising:
a silica nanotube having a metallic rod embedded therein; and
metallic nanoparticles coated on a surface of the silica nanotube.
2. The nanocapsule of claim 1 , wherein the silica nanotube shell thickness is from 70 nm to 150 nm.
3. The nanocapsule of claim 1 , wherein the nanocapsule has a diameter from 100 nm to 0.01 cm.
4. The nanocapsule of claim 1 , wherein the metallic nanoparticles comprise at least one of silver, gold, cobalt, rhodium, iridium, copper, platinum, or palladium.
5. The nanocapsule of claim 1 , wherein the metallic rod comprises nickel, platinum, silver, or gold.
6. The nanocapsule of claim 1 , wherein the metallic rod consists of nickel.
7. The nanocapsule of claim 1 , wherein the metallic rod is a segmented metallic rod.
8. The nanocapsule of claim 7 , wherein the segmented metallic rod comprises segments of silver or gold, and segments of nickel.
9. The nanocapsule of claim 1 , wherein the metallic nanoparticles are coated on the outer surface of the silica nanotube.
10. The nanocapsule of claim 9 , wherein the entire outer surface of the silica nanotubes is coated with metallic nanoparticles.
11. The nanocapsule of claim 1 , wherein a portion of the silica nanotube is hollow.
12. The nanocapsule of claim 11 , wherein the metallic nanoparticles are coated on the outer and the inner surface of the silica nanotube.
13. The nanocapsule of claim 1 , wherein the silica nanotube shell thickness is from 100 nm to 1 μm.
14. The nanocapsule of claim 1 , further comprising an active agent.
15. The nanocapsule of claim 14 , wherein the nanocapsule is surface functionalized to bind the active age.