http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109730979-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-7036 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-155 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-785 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-192 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-70 |
| filingDate | 2019-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-06-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109730979-B |
| titleOfInvention | Micro-nano porous polytetrafluoroethylene-based recyclable drug sustained-release film and preparation method thereof |
| abstract | The invention discloses a micro-nano porous polytetrafluoroethylene-based recyclable drug sustained-release film, which belongs to the field of drug sustained-release carrier materials, and is of a multi-stage hole nested structure, wherein the structure comprises a porous polytetrafluoroethylene film and mesoporous silica nanoparticles, the surface of the porous polytetrafluoroethylene film is covered with a hydrophilic coating, and the ratio of the mesoporous silica nanoparticles to the porous polytetrafluoroethylene film is 0.001-0.1 g/cm 2 The porous polytetrafluoroethylene film and the mesoporous silica nanoparticles are loaded with drugs; the multi-stage hole nesting structure is that mesoporous silica nano particles loaded with a medicament are pressed into a porous polytetrafluoroethylene film loaded with the medicament; the invention also discloses a preparation method of the drug, which has the advantages of simple process, low cost, less used reagents, stable product surface hydrophilic structure, more drug loading capacity and more lasting release due to the unique micro-nano hole nested structure, and has huge market prospect and economic and social benefits. |
| priorityDate | 2019-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 156.