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US 2020/0206136 A1Published application
Cellulosic polymer nanoparticles and methods of forming them
AssigneeThe Trustees of Princeton University
InventorsRobert K. PRUD'HOMME, Jie FENG, Kurt D. RISTROPH, Hoang (Jack) LU, Yingyue ZHANG, Simon A. MCMANUS, Robert F. PAGELS
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Abstract
Nanoparticles including a cellulosic polymer and a hydrophobic material and methods for forming them.
Claims66
A nanoparticle comprising
- a cellulosic polymer substituted with hydrophilic groups;
- and
- a hydrophobic material,
- wherein the cellulosic polymer has a molecular weight from 10,000 to 2,000,000 g/mol and
- wherein the nanoparticle has a size from 10 nm to 5000 nm.
2 more elements
A process for forming a nanoparticle, comprising
- dissolving a cellulosic polymer substituted with hydrophilic groups and a hydrophobic material in a less polar solvent to form a process solution, and
- combining the process solution with a more polar solvent to rapidly precipitate the nanoparticle,
- wherein the formed nanoparticle comprises the cellulosic polymer and the hydrophobic material.
A process for forming a nanoparticle, comprising
- dissolving a hydrophobic material in an organic solvent to form an organic solution, and
- dissolving a cellulosic polymer substituted with hydrophilic groups in an aqueous solvent to form an aqueous solution,
- dispersing the organic solution in the aqueous solution to form a dispersion, and
- removing (“stripping”) the organic solvent from the dispersion to form the nanoparticle,
- wherein the formed nanoparticle comprises the cellulosic polymer and the hydrophobic material.
2 more elements
Dependencies are inferred from the claim text.