| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f3fd1afe3264d1076b11f3f63e282359 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0426
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0423
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0256
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-014
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N2291-0427 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N29-022
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N33-0047 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-02 |
| filingDate |
2000-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f39b5c316fb3cc85a5d78d74192332d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41aa65bee1ef8d7ea88ae67331ed42f9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_417b6241eca2ea48c7c3ef39f96c672d |
| publicationDate |
2001-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0125780-A1 |
| titleOfInvention |
Chemical sensor and coating for same |
| abstract |
An acoustic wave-based chemical sensor utilizing a crystal substrate and a coating of polymer beads is disclosed. The polymer beads preferably include a high glass transition temperature polymer. Transducers are connected to the crystal substrate to generate an alternating potential across the crystal substrate, which in turn causes the crystal to resonate due to the converse piezoelectric effect. The coating absorbs the analyte e.g. a volatile organic compound, thus changing the mass of the chemical sensor, and accordingly changing its resonant frequency. The transducers detect the change in resonant frequency to indicate that the analyte is present. The polymer bead coating has a large surface area which facilitates mass uptake of large amounts of VOCs, improved acoustic properties even with relatively thick coatings, and a wide operational temperature range. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010106331-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103995519-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102356315-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2018003677-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109155621-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8802410-B2 |
| priorityDate |
1999-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |