http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108452312-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L2430-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-025 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-08 |
| filingDate | 2018-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108452312-B |
| titleOfInvention | Preparation method of graphene quantum dot and calcium carbonate composite nano-microspheres |
| abstract | The invention provides a preparation method of graphene quantum dot and calcium carbonate composite nano microspheres. (1) Mixing the graphene quantum dots with a calcium salt solution and dimethyl carbonate; (2) heating in water bath at 20-22 ℃, and stirring for 1-5 min; (3) adding a sodium hydroxide solution into the mixed solution obtained in the step (2), stirring for 30s, and standing; (4) and (3) carrying out suction filtration, washing with absolute ethyl alcohol, flushing the product from the filter membrane into a centrifugal tube with the absolute ethyl alcohol, and carrying out vacuum drying at 30-80 ℃ for 24h to obtain the graphene quantum dot and calcium carbonate composite nanospheres. The hollow calcium carbonate microsphere prepared by the invention has the particle size range of about 100-500 nm, has a hollow structure and a solid structure, a huge specific surface area and good cell compatibility, can be prepared into a drug carrier or a human tissue engineering scaffold, and is applied to the field of bone tissue medical treatment. |
| priorityDate | 2018-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.