http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109850953-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B33-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G49-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 |
| filingDate | 2019-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109850953-B |
| titleOfInvention | Preparation method of magnetic composite microspheres based on efficient ferroferric oxide nanoparticle assembly structure |
| abstract | The invention relates to the technical field of magnetic nano materials, and provides a preparation method of a magnetic composite microsphere based on a ferroferric oxide nano-particle efficient assembly structure, aiming at solving the problems of low content of a magnetic substance loaded on the surface layer of the existing magnetic composite microsphere, low magnetic responsiveness, overlarge size, complex preparation process and high cost, wherein the preparation method comprises the following steps: (1) preparing a chloroform solution of ferroferric oxide nano particles; (2) preparing a sulfhydrylation radial silicon sphere template; (3) preparing radial silicon spheres/ferroferric oxide nano particles/silicon dioxide microspheres. According to the invention, the ultra-large pore and the highly accessible inner surface of the carrier radial silicon spheres are utilized to realize the ultra-high load of the ferroferric oxide nanoparticles, so that the signal maximization in a single template is achieved, and the reaction kinetics and the magnetic responsiveness are better. Meanwhile, the size of the template is uniform, and the finally obtained magnetic microspheres have uniform particle size and good repeatability and are suitable for the field of analysis and detection. |
| priorityDate | 2019-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.