Videos

 

Closing Stomate

This is a time-lapse video of a stomate closing under the action of abscisic acid. The time scale is around 40mins. Ross Carter

 

Antibiotic induced cell lysis during division

Video showing Staphylococcus aureus cell lysis in the presence of oxacillin, imaged by AFM. Oxacillin is a beta-lactam antibiotic that prevents the manufacture of new cell wall during the growth cycle, preventing successful division. Richard G Bailey

PHB/V Spherulite growth

This movie shows a polyhydroxybutyrate-co-valerate spherulite crystallizing at room temperature. They are topographic images, presented in pseudo-3D. The formation of a depletion zone in front of the growing spherulite, and the formation of bands, is clearly visible. The image size is approx. 10 microns.

PHB/V Spherulite growth at a lamellar scale

This movie shows the growth front of a polyhydroxybutyrate-co-valerate spherulite crystallizing at 15°C. They are phase images, which pick up differences in mechanical contrast between the soft melt and the hard crystals. The size is approximately 500 nm.

Oriented polyethylene crystallization

This movie shows the growth and interdigitation of oriented polyethylene lamellae crystallizing at 128°C. These are phase images. The image size is approx 3 microns.

Polyethylene melting

This movie shows the melting of oriented polyethylene lamellae during continuous heating from the crystallization temperature. These are amplitude images, which highlight edges. The movement is due to the thermal expansion of the heater, and ensuing motion of the sample relative to the scanner. The image size is approx 3 microns.

Division of S. aureus

This movies shows the in-situ observation of the division of s. aureus bacteria over a period of several hours. The images are deflection images. Note the rapid fracture of the septum. The image size is approx 2.5 microns.

Growth of a liquid crystalline phase from the melt

This movie shows the growth of a liquid crystalline cubic phase (dark spot) from the isotropic phase at ca. 60°C. This is a topography image and the scan size is approx. 20 by 20 microns.