Posts Tagged 'bioluminescent'

Firefly Squid, The Glow-In-The-Dark Meal [video]

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Sea Sapphire – The Most Beautiful Animal You’ve Never Seen

SeaSapphire-sLiveScience reports –

When I first saw a sea sapphire I thought I was hallucinating. The day had been anything but normal, but this part will always stand out. I had spent the afternoon on a small dingy off the coast of Durban, South Africa. It was muggy, and I had been working for hours – throwing a small net out, and pulling in tiny hauls of plankton to put in jars. As I looked through one jar, the boat rocking up and down, I saw a bright blue flash. It lasted for an instant and then it was gone. Then I saw another one in a different place. It was an incredible shade of blue. Maybe I had been in the sun too long? Maybe I was seeing things? It wasn’t until I got back to the lab that I discovered the true beauty and mystery of these radiant flashes.

Continue reading and watch video HERE.

 

 

Scientists Create Living Laser From Human And Jellyfish Cells

Nature.com reports –

Building a laser requires two things: a lasing material that amplifies light from an external source (a ‘gain medium’) and an arrangement of mirrors (an ‘optical cavity’), which concentrates and aligns the light waves into a tight beam. Until now, the gain medium has only been made from non-biological substances such as doped crystals, semiconductors or gases, but in this case the researchers used enhanced green fluorescent protein (GFP) — the substance that makes jellyfish bioluminescent, which is used extensively in cell biology to label cells. The team engineered human embryonic kidney cells to produce GFP, then placed a single cell between two mirrors to make an optical cavity just 20 micrometres across. When they fed the cell pulses of blue light, it emitted a directional laser beam visible with the naked eye — and the cell wasn’t harmed. The width of the laser beam is “tiny” and “fairly weak” in its brightness compared to traditional lasers, says Yun, but “an order of magnitude” brighter than natural jellyfish fluorescence, with a “beautiful green” colour.

Continue reading HERE.

 


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