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US 12,661,634 B2Granted
Nanotubes in porous particles
AssigneesThe Administrators of the Tulane Educational Fund, University of Connecticut
InventorsVijay T. John, Ioulia A. Valla
Life of this patent
Estimating the term…
Abstract
Disclosed herein are compositions and methods that allow access to the interior of porous particles by inserting nanotubes into the particles. The compositions and methods disclosed herein are useful in several applications such as in catalytic reactions, plant active delivery, pharmaceutical drug delivery, and in absorbing environmental contaminants.
Claims22
A composition of matter comprising:
- a porous particle having an interior and a surface;
- and
- a ceramic or halloysite nanotube comprising an outer wall having two ends and an open lumen, the nanotube penetrating the porous particle such that one end of the nanotube is exposed to the interior of the porous particle and does not extend outside of the porous particle and the other end of the nanotube is exposed to an environment outside of the interior and surface of the porous particle, and the lumen of the nanotube is open to the environment,
- wherein
- (a) the lumen of the nanotube is substantially free of the porous particle;
- and/or
- (b) the composition of matter further comprises a plant active, a pharmaceutical drug, a ligand, a polymer, an aminated compound, or a combination thereof embedded in the porous particle.
4 more elements
A composition of matter comprising:
- a porous particle having an interior and a surface;
- and
- a nanotube comprising an outer wall having two ends and an open lumen, the nanotube penetrating the porous particle such that one end of the nanotube is exposed to the interior of the porous particle and does not extend outside of the porous particle and the other end of the nanotube is exposed to an environment outside of the interior and surface of the porous particle, and the lumen of the nanotube is open to the environment,
- wherein the composition of matter further comprises a plant active embedded in the porous particle, wherein the plant active comprises a fertilizer, a nutrient, a pesticide, or a combination thereof.
1 more element
A composition of matter comprising:
- a porous particle having an interior and a surface;
- and
- a nanotube comprising an outer wall having two ends and an open lumen, the nanotube penetrating the porous particle such that one end of the nanotube is exposed to the interior of the porous particle and does not extend outside of the porous particle and the other end of the nanotube is exposed to an environment outside of the interior and surface of the porous particle, and the lumen of the nanotube is open to the environment,
- wherein the composition of matter further comprises an aminated compound polymer embedded in the porous particle, wherein the polymer comprises poly(ethyleneimine)(PEI).
1 more element
A composition of matter comprising:
- a porous particle having an interior and a surface;
- and
- a nanotube comprising an outer wall having two ends and an open lumen, the nanotube penetrating the porous particle such that one end of the nanotube is exposed to the interior of the porous particle and does not extend outside of the porous particle and the other end of the nanotube is exposed to an environment outside of the interior and surface of the porous particle, and the lumen of the nanotube is open to the environment,
- wherein
- (a) the lumen of the nanotube is substantially free of the porous particle;
- and/or
- (b) the composition of matter further comprises a plant active, a pharmaceutical drug, a ligand, a polymer, an aminated compound, or a combination thereof embedded in the porous particle;
- and
- wherein the composition of matter comprises an aminated compound, the aminated compound comprising monoethanolamide, triethanolamine, diethanolamine, diethylenetriamine, tetraethylenepentamine, tetraethylenepentamine-acrylonitrile, 3-aminopropytriethyoxysilane, or a combination of the foregoing.
6 more elements
A composition of matter comprising:
- a porous particle having an interior and a surface, wherein the porous particle is selected from the group comprising:
- MCM-41, MCM-48, MCM-50, SBA-11, SBA-12, SBA-15, SBA-16, KIT-5, and COK-12;
- and
- a nanotube comprising an outer wall having two ends and an open lumen, the nanotube penetrating the porous particle such that one end of the nanotube is exposed to the interior of the porous particle and does not extend outside of the porous particle and the other end of the nanotube is exposed to an environment outside of the interior and surface of the porous particle, and the lumen of the nanotube is open to the environment,
- wherein
- (a) the lumen of the nanotube is substantially free of the porous particle;
- and/or
- (b) the composition of matter further comprises a plant active, a pharmaceutical drug, a ligand, a polymer, an aminated compound, or a combination thereof embedded in the porous particle.
5 more elements
A composition of matter comprising:
- a porous particle having an interior and a surface, the porous particle comprising calcium oxide (CaO) or silica;
- and
- a nanotube comprising an outer wall having two ends and an open lumen, the nanotube penetrating the porous particle such that one end of the nanotube is exposed to the interior of the porous particle and does not extend outside of the porous particle and the other end of the nanotube is exposed to an environment outside of the interior and surface of the porous particle, and the lumen of the nanotube is open to the environment,
- wherein
- (a) the lumen of the nanotube is substantially free of the porous particle;
- and/or
- (b) the composition of matter further comprises a plant active, a pharmaceutical drug, a ligand, a polymer, an aminated compound, or a combination thereof embedded in the porous particle.
4 more elements
Dependencies are inferred from the claim text.