red and green | Outside The Lines

Red means stop and green means go. This has been true for some time and is widely accepted, probably because traffic signals reinforce this behavior on a daily basis. Now these colors are being used to determine if a human wound is healing or not. SMART bandages turn green when oxygen is flowing to wounds and red if oxygen is low.

This is important technology because wounds need sufficient amounts of oxygen to fully heal. However, until now, most bandages actually restrict oxygen flow and hide the healing process, leaving wounds susceptible to unseen complications. With this new “paint-on” translucent bandage, an individual and his or her physician can easily monitor the wound’s healing process.

The creator of the bandage, Conor L. Evans, an assistance professor at Massachusetts General Hospital (at the Wellman Center for Photomedicine) and Harvard Medical School, considers the color changing technology to be a sort of mapping system. For right now, the SMART bandage maps “a wound’s tissue oxygenation concentration.” But this is only part of the bandage’s purpose.

SMART is an acronym for Sensing, Monitoring and Release of Therapeutics. Right now, sensing and monitoring are available thanks to easy-to-follow color changing technology; in the future, the bandage may be capable of “automatically [delivering] drugs at the wound site.”

The transparent liquid bandage displays a quantitative, oxygenation-sensitive colormap that can be easily acquired using a simple camera or smartphone. Image: Li/Wellman Center for Photomedicine

For now, the bandage uses a viscous liquid that includes phosphors. Phosphors are in many glow-in-the-dark products because they “absorb light and then emit it via a process known as phosphorescence,” explains rdmag.com. This liquid is painted on the first wound. In conjunction with a different top coat, it creates an air-tight sealant that protects the wound while monitoring airflow. Then, a camera is used to activate the phosphor and capture a reading of current oxygen levels (i.e. a map of reds and greens) throughout the wound. Any camera can trigger this process—even a smartphone.

There is no telling when or if color changing bandages will be sold over-the-counter. The research for SMART bandages has been driven by an admirable goal: to help wounded soldiers. SMART bandages may soon go into field testing in efforts to “significantly improve the success of surgeries to restore limbs and physical functions.”

On a large scale, the sensing and monitoring bandage may be the start of precise wound healing. On a small scale, it is pretty cool that a translucent bandage may change color, and in effect, help humans heal.

Read more Segmation blog posts about art and color:

Red Artwork is Worth Fortunes

Cutting Edge Art Blog Inspired by Current Events

The Color Red and its Many Meanings

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Entering the holiday season, festive color combinations will soon be everywhere. Pine trees should be adorned with red ribbon and missile toe will layer green leaves upon berries. But in nature, the colors green and red are rarely seen together. This is not because of any earth-wide grudge that exists between the colored pair. The atmosphere seems to want it this way.

Solar Storms and Auroral Contrasts

Earlier this year, a solar storm hovered over the planet. People in regions far north of the equator were able to experience a magnificent sky, bold with color. Aurora Borealis, or Northern Lights, occur when a number of factors line up.

It is common to see auroras feature green waves breaking throughout the sky. This year, however, in New Zealand, one man photographed a red aurora.

Red is said to be a rare shade for aurora lights. Tony Phillips of SpaceWeather.com says, “Red auroras occur some 300 to 500 kilometers above Earth’s surface and are not yet fully understood.” There are some reasons why researchers believe the red aurora is so rare. Philips indicates is may be because, “…red lights may be linked to a large influx of electrons. When low-energy electrons recombine with oxygen ions in the upper atmosphere, red photons are emitted.”

Another reason why red auroras are rare is because it is hard to predict when this natural phenomenon will occur.

Minoru Yoneto photographed the red aurora in New Zealand on Oct. 2, 2013, but most of the time auroras reflect shades of green and sometimes purple.

Travel North to see Auroras

The solar storm that took place in early October could be seen from many parts of the world, including “as far south as Kansas, Ohio and Oklahoma.” Most of the time, seeing Northern Lights requires a person be situated in a northern climate.

An article by CNN states that, “The best chance to see the Northern Lights will be somewhere between 66 to 69 degrees north – a sliver of the world that includes northern Alaska and Canada and bits of Greenland, northern Scandinavia and northern Russia.”

Those who want to see green and red collide may have to travel even further north – this color combination is said to be most prevalent in the North Pole.

Read more Segmation blog posts about Art and Atmosphere:

Light Creates Space, Color, and Perception

Extracting Art from Science

Plexiglass + Light = Awe Inspiring Art

Be a Artist in 2 minutes with Segmation SegPlay® PC (see more details here)

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