<p>Caffeine crystals. Coloured scanning electron micrograph (SEM) of anhydrous caffeine crystals (1,3,7-trimethylxanthine). They were produced by a process called sublimation. A liquid containing caffine, such as coffee, is frozen and heated to 238 degrees Celsius, causing the frozen liquid to vaporise without going through the liquid phase. The vapour is then condensed, which drives the water out and results in anhydrous crystals. Some of the crystals have symmetrically intergrown (upper centre, red and yellow). Caffine stimulates the central nervous system (CNS), increasing alertness and deferring fatigue. It occurs in coffee beans and tea leaves. Magnification: x400 at 10 centimetres high.</p>
Whether you’re looking for an affordable wall art solution, or seeking to custom frame your art at home, our giclée poster prints will not disappoint. Printed on high quality poster paper, your new abstract art, movie poster, or fine art photography will look stunning in any light.
<p>Your selected artwork is printed in fine detail on a lightweight, low glare, satin poster paper. This bright white paper stock ensures vibrant color and image clarity.</p>
<p>All of our paper prints are giclée printed with archival inks for enduring color and detail. Each poster print is carefully checked by our print team to ensure the details and quality are faithful to the original artwork.</p>
<p>If you’re looking for a specific frame or custom matting, our high quality poster prints give you the flexibility to frame your art at home. Looking for an all-in-one framed art print that’s ready to hang? Be sure to check out our framed art prints for a complete, finished product, available in a variety of frame finishes. Whether you choose to do it yourself or opt for our all-in-one framed prints, our poster prints are guaranteed to provide visual impact to your space.</p>
Jeremy Burgess
Science
Chemistry
