1. Industrial and Medical Use of Enzymes

2. Biosensors

3. Definition of a biosensor A device that uses specific biochemical reactions mediated by isolated enzymes to detect chemical compounds usually by electrical, thermal or optical signals

4. Biosensor breakdown Analyte Sample handling/preparation Detection Signal Analysis Response

5. The Analyte What do you want to detect? Molecule Protein, toxin, peptide, vitamin, sugar, metal ion Cholera toxinGlucose

6. Example of biosensors Pregnancy test Detects the hCG protein in urine. Interpretation and data analysis performed by the user Glucose monitoring device (for diabetes patients) Monitors the glucose level in the blood. Interpretation and data analysis performed by a microprocessor.

7. Example of biosensors Infectous disease biosensor Data analysis and interpretatoin performed by a microprocessor