12 Biosensors and medical devices

What are biosensors?

Biosensors are analytical devices that convert a biological response into an electrical signal. They are used for detecting and measuring biological substances, including pathogens, enzymes, and hormones, often in medical diagnostics.

List 4 uses of biosensors

Medical Diagnostics, Biological assays, Quality assurance in agriculture, Monitoring environmental pollutants.

What are the 3 parts that biosensors consist of?

Sensitive receptor, transducer, signal processing unit.

give 2 examples of catalysis strategies

Glucose oxidase, Urease, and Alcohol oxidase.

What are 3 catalysis measure routes?

pH change, O2 consumption, H2O2 production

What is a transducer

A component of a biosensor that converts a biological response into an electrical signal, allowing for the measurement and analysis of biological processes.

List 3 types of Transducer types

Electrochemical, photochemical transducer, and piezoelectric transducers.

how does an electrochemical transducer work?

It works by measuring the electrical signals generated by redox reactions occurring at the electrode surface, translating chemical information into an electrical signal for analysis.

How does a photochemical transducer work?

It operates by detecting changes in light intensity or wavelength as a result of chemical reactions, converting optical signals into electrical signals for further analysis.

How does piezoelectric transducers work?

Translate a mass change from a chemical adsorption event to electrical signal.

List 3 types of physical entrapments to detect elements

Membranes, entrapment gels, microencapsulation

What are 3 methods of detection elements

Physical entrapment, Adsorption, covalent bonding.

List 4 examples of biosensors

Covid test, glucose meter, pregnancy test, cholesterol test.