The image, entitled 'Radiating Retina', is a print made from a copper etching. It is an artistic rendering of the vertebrate retina, specifically the cells and cell layers involved in the transduction of visual signals.
rainbow feathers --- We provide vivid color like the every shade of rainbow which can be used in food, beverage, pharmaceutical products,etc. Our products are extracted from herbs & plants. It's natural.
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.