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Caffeine crystals, Annie Cavanagh and David McCarthy

Caffeine crystals by Annie Cavanagh and David McCarthy. This false-coloured scanning electron micrograph shows caffeine crystals. Caffeine is a bitter, crystalline xanthine alkaloid that acts as a stimulant drug.

Strangely beautiful.  Chalk under a microscope is made up of Coccoliths -- fossized algae skeketons.

Emiliania huxleyi - single-celled marine phytoplankton that produce calcium carbonate scales (coccoliths). A scanning electron micrograph of a single coccolithophore cell. Taylor (University of North Carolina Wilmington Microscopy Facility)

Loperamide - an antimotility drug used to treat diarrhoea, works by slowing down the movement of the intestine and reducing the speed at which the contents of the gut pass through    'What makes it so different from most images

Loperamide Crystals by Annie Cavanagh and David McCarthy. This false-coloured scanning electron micrograph shows loperamide crystals, an antimotility drug used to treat diarrhoea.

Microscopic - Neuron in Brain

Image: Annie Cavanagh, Wellcome Images - Of the 100 billion neurons in your brain, Purkinje neurons are some of the largest. Among other things, these cells are the masters of motor coordination in the cerebellar cortex.

Trinacria indefinita - Diatom cell. Courtesy of Ekaterina Nikitina

Trinacria indefinita Diatom cell Courtesy of Ekaterina Nikitina Image Details Instrument used: Quanta Family Magnification: 1500 x Voltage: 20 kv Detector: ETD

Sponge spicules - Spicules from a sponge found in South African waters. Courtesy of Miranda Waldron

Spicules from a sponge found in South African waters Courtesy of Miranda Waldron Image Details Instrument used: Nova NanoSEM Family Magnification: Horizontal Field Width: 149 um Voltage: 2 kV Spot: Working Distance: Detector: vCD