Lipid vesicles formed with alkylammonium fatty acid salts
US5874105A · kind A · utility
105Cited by
37References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1996 |
| Grant date | Feb 23, 1999 |
| Priority date | — |
| Expiry date | Jan 31, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/1272
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A liposome for use in encapsulating both hydrophobic and hydrophilic substances (i.e., a "payload"),is disclosed which is capable of delivering their load upon the occurrence of a trigger or control condition. The liposomes are formed to stably encapsulate a particular active agent to form a delivery vehicle for the agent. The liposomes of the delivery vehicle are stable in a particular environment but become unstable or permeable if passed from the stable environment (e.g., characteristic of a particular pH and/or temperature and/or ionic strength) to a changed or unstable environment, thereby delivering their payload.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.