| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_43db987e0033cbdc3db3a81fca37e130 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-0014 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K47-6939
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N43-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K41-0057 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N59-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01P1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N25-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P17-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L2-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K41-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K47-61 |
| filingDate |
2020-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a77ffaf0ab3b068e396244200816e55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc9c1f69832e4ff1d9ba7dca41aca775
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32593083b8dfd360f1d76166284f3932
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a0881e3c70084c257a140a3abd23a5b8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c68f873ac76794cd771d12ae3a7575bf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd4272585757c35267d18eb2404d94fe |
| publicationDate |
2021-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-3151855-A1 |
| titleOfInvention |
Photosensitizer-conjugated antimicrobial cellulose nanocrystals and methods of synthesizing and using same |
| abstract |
This application relates to compositions comprising cellulose nanocrystals (CNCs) and photosensitizer molecules conjugated to the CNCs. In some embodiments the compositions generate reactive oxygen when exposed to light. Methods of preparing the compositions and using the compositions or formulations containing the compositions as biocidal disinfectants are also described. In some embodiment the photosensitizer molecules comprise cationic dyes with acidic protons, such as azure A. In some embodiments the CNC and photosensitizer molecules are coupled together using a pH mediated synthetic protocol whereby the photosensitizer molecules are first dispersed in an acidic suspension of oxidized CNCs and the suspension is then adjusted to an alkaline pH to facilitate photosensitizer fixation. In some embodiments, photobactericidal potency of the composition is significantly more toxic to a broad spectrum of bacteria than the light- activated photosensitizer molecules in a non-conjugated free form. The compositions can be incorporated in various formulations for photobiocidal applications, including aqueous solutions, film-forming polymers such as paints, and hydrogels. |
| priorityDate |
2019-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |