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Details of Grant 

EPSRC Reference: GR/J76750/01
Title: GEL-COATED PIEZOELECTRIC CRYSTAL SHEAR WAVE SENSORS FOR METABOLITE AND OTHER BLOOD COMPONENTS
Principal Investigator: Lewis, Professor TJ
Other Investigators:
Jones, Dr J
Researcher Co-Investigators:
Project Partners:
Department: Sch of Electronics
Organisation: Bangor University
Scheme: Standard Research (Pre-FEC)
Starts: 01 May 1994 Ends: 30 August 1994 Value (£): 82,120
EPSRC Research Topic Classifications:
Biomaterials
EPSRC Industrial Sector Classifications:
Healthcare
Related Grants:
Panel History:  
Summary on Grant Application Form
Supported by new theoretical understanding of their operation, the potential of piezoelectric quartz crystal resonant oscillators coated with gel-entrapped bioreactive molecules as sensors for medical application will be explored. Polyacrylyamide, polyvinyl alcohol, hydroxy ethylmethy- lacrylate and polyethylene oxide hydrogel coatings will be used with immobilised enzymes such as oxidases, lactate dehydrogenase and hexokinase to produce sensors for blood metabolites. Sensors for monitoring drugs such as salicylate and paracetamol in blood samples employing appropriate hydrogel-entrapped antibodies will also be studied. By denaturing the hydrogels to produce ionizable side groups and by varying pH, degree of crosslinking and buffer conditions the importance of sensor molecule-gel coupling in determining response will be investigated. In all cases the responses will be related to the theoretical viscoelastic model for the behaviour of quartz crystal sensors and strategies for optimum performance will be determined. The effects of biofouling by blood components and the response of sensors containing gell-entrapped cells subjected to environmental insult will be investigated.
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Organisation Website: http://www.bangor.ac.uk