Chemical Sensors in Action: 10 Lectures to Detect, Measure & Interpret Molecules

Chemical Sensors

Contents

Lecture 1: What Is a Chemical Sensor?

Lecture 2: Selectivity and Recognition

Lecture 3: Dynamic Range and Sensor Saturation

Lecture 4: The pH Glass Electrode

Lecture 5: Electrochemical Sensors – Potentiometric and Amperometric

Lecture 6: Ion-Selective Membranes and Interfaces

Lecture 7: Catalytic Gas Sensors and Fuel Cells

Lecture 8: Piezoelectric and Mass Sensors

Lecture 9: Conductimetric Sensors and Chemiresistors

Lecture 10: Sensor Systems and Biological Interfaces

Questions

Answers

Chemical Sensors

Chemical sensors are the quiet sentinels of modern science devices that detect, quantify, and respond to chemical species in real time. From breathalysers and fuel cells to environmental monitors and biosensors, they convert molecular interactions into measurable signals, bridging chemistry, physics, and engineering.

This lecture series explores:

• Transduction mechanisms: potentiometric, amperometric, conductometric, and piezoelectric

• Selectivity and recognition: membranes, receptors, and molecular imprinting

• Dynamic range and saturation: how sensors respond across concentrations

• Biological interfaces: enzymes, antibodies, and unconventional detectors

• Sensor systems: integration, calibration, and real-world deployment

Whether you’re designing sensor platforms, teaching analytical chemistry, or curating outreach kits, this guide offers rhythm-aware scaffolding and remixable depth. It’s built for standalone study, printable archiving, and thematic extension, bridging molecular insight with practical instrumentation.

Let’s begin with the essentials: how sensors recognise molecules and convert that recognition into a signal.

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