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Dynamic Interfacial Chemistry Lab
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The lab determines the forces at interfaces while things are in motion.
AboutAbout the lab
Controlling the forces on colloids at will
The Dynamic Interfacial Chemistry Lab (McNamee Lab) studies colloid and interface chemistry.
In industries such as chemicals, pharmaceuticals, and food, fine particles in liquids disperse or aggregate, and this is determined by the forces acting between the particles.
When products are made or used, they are in a non-equilibrium state subject to mixing, temperature changes, electric fields, and so on, and the forces acting there change as well.
The lab experimentally investigates how the forces acting on colloidal systems change under non-equilibrium conditions, and explores ways to control those forces freely.
Key terms
- colloid
- Particles generally smaller than about 1 μm that are dispersed in a liquid or similar medium.
- atomic force microscope
- A microscope that traces a surface with a fine tip to measure nanoscale shapes and forces.
- non-equilibrium
- A state that is changing because of external action, such as stirring or an applied electric field.
ResearchResearch themes
The forces acting between colloids determine whether particles disperse or aggregate. Products are made and used in non-equilibrium environments with mixing, chemical reactions, temperature changes, and electric and magnetic fields. The lab experimentally investigates how the forces on colloidal systems change under non-equilibrium conditions, aiming to control those forces to freely alter the properties of colloidal systems and to make thin films that exploit interfacial forces.
*Illustrative imageForces acting on surfaces in liquids
The lab uses an atomic force microscope to directly measure forces between surfaces in liquids. It has found that under non-equilibrium conditions, such as applied sound or electric fields, sliding or vibrating surfaces, and flowing liquids, the forces differ from those at equilibrium.
*Illustrative imageDesigning thin films with interfacial forces
The lab develops methods to make thin films at gas–liquid and solid–liquid interfaces and to control their properties. By manipulating the forces acting at interfaces through liquid properties and electric and magnetic fields, it aims to make thin films with desired properties at will.
MembersFaculty
The faculty member of the Dynamic Interfacial Chemistry Lab is Professor Cathy McNamee.
- ProfessorMCNAMEE Cathy Elizabeth
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “LO Matrix” Cruccone / CC BY-SA 3.0 (cropped)
- Forces acting on surfaces in liquids: “AFM at work” AAMonitor96 / CC BY-SA 3.0 (cropped)
- Designing thin films with interfacial forces: “Soap film 3” Umberto Salvagnin / CC BY 2.0 (cropped)
- Related lab (Catalytic Reaction Chemistry Lab): “SPring-8 synchrotron SP8 BL01B1” Drac2000 at English Wikipedia / CC BY-SA 3.0 (cropped)
- Related lab (Transport Phenomena Lab): “A starling murmuration at Galashiels - geograph.org.uk - 5991163” Walter Baxter / CC BY-SA 2.0 (cropped)
- Related lab (Polymer Functions Lab): “Polymer organische Solarzelle 01” Kuebi = Armin Kübelbeck / CC BY-SA 3.0 (cropped)
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