2017年3月8日 星期三

Wellcome Image Awards 2017, 2017年度惠康影像獎

Ezequiel Miron captured a multicoloured portrait of DNA in a human lung cell. The DNA in the cell has somehow become caught, and is being pulled between the two cells, making it appear like a teardrop. This has caused the DNA to unfold inside the nucleus, and DNA fibres can be seen running through it. As the new cells have moved apart, the tension distributed by the rope-like DNA has deformed the nucleus’s usually circular shape. (Photo by Ezequiel Miron/Wellcome Images)
With its huge eyes, comical name and diminutive size, Mark R. Smith’s image of a baby Hawaiian bobtail squid can’t help but raise a smile. A curiously endearing creature, the cephalopod is just 1.5cm across, its mantle cavity bearing more than a passing resemblance to a rather natty shower cap. But it is also a beautiful example of symbiosis – nature’s version of “I’ll scratch your back if you scratch mine” – for on the underside of the squid is a light organ which houses bioluminescent bacteria. The squid offers the bacteria protection and food, while the bacteria emit a glow – a handy trait that the squid uses to offset its silhouette, helping it to evade predators in the depths below. Mark R. Smith’s entry combines several images of a Hawaiian bobtail squid with different focus lengths to create a final picture with greater depth of field than normal. (Photo by Mark R. Smith/Wellcome Images/Macroscopic Solutions)
Cat skin and blood supply. Whiskers, unlike normal hair, are touch receptors, each containing a sensory organ called a proprioceptor. Scientists injected blood vessels with a red dye called carmine dye (here appearing black) in order to visualise the capillaries in the tissue, a newly developed technique at the time. The picture is a composite made up of 44 individual images which were stitched together. Here, fine hairs (yellow), thicker whisker (yellow) and blood vessels (black) are all visible. (Photo by David Linstead/Wellcome Images)
Wellcome Image Awards 2017
http://avax.news/fact/Wellcome_Image_Awards_2017.html

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