Use of simple amino acids to form porous particles
US7252840B1 · kind B1 · utility
13Cited by
23References
47Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2000 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Sep 28, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1617
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Particles having a tap density of less than 0.4 g/cm3 include a hydrophobic amino acid or salt thereof and a therapeutic, prophylactic or diagnostic agent or any combination thereof. Preferred particles include a phospholipid, have a median geometric diameter between about 5 and about 30 microns and an aerodynamic diameter between about 1 and about 5 microns. The particles can be formed by spray-drying and are useful for delivery to the pulmonary system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.