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from article Optical coherence tomography
Typical optical coherence tomography system, based on a broadband source and fiber-optic Michelson interferometer.
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Image
from article Optical coherence tomography
Optical coherence tomography images of healthy hamster skin in vivo. (a) Conventional magnitude image. Various layers of skin can be seen in cross section. (b) Result after Doppler processing of the same signal used to create the magnitude image.…
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from article Poppy
Stems, fruits (capsules), and flower of the opium poppy (Papaver somniferum). By cutting into the fruits soon after the petals have fallen, the opium is obtained. (Credit: Milan Kořínek)
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from article Synthetic immunology
Use of synthetic immunotherapy to treat cancer. (Copyright © McGraw-Hill Education)
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from article Bioremediation
Contaminating oil spill on the surface of ocean water. (Credit: Steve Martarano/U.S. Fish and Wildlife Service)
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from article Bioremediation
Controlled oil burns were used to reduce the amount of surface oil following the Deepwater Horizon explosion in the Gulf of Mexico in 2010. (Credit: John Masson/U.S. Coast Guard)
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from article Bioremediation
Diagram of in situ bioremediation. Microorganisms and nutrients are introduced into the site, where they flow into the area containing pollutants. The bioremediation process is monitored, and water and by-products are extracted using wells. (Credit:…
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from article Plant pigment
Photosynthetic spectra of higher plants. (Left) Absorption spectra for chlorophyll a, chlorophyll b, and the carotenoids, showing the wavelengths of visible light that support photosynthesis. (Right) Action spectrum for photosynthesis. (Copyright ©…
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from article Plant pigment
Structures of three types of plant pigments: chlorophylls (chlorophyll a and chlorophyll a′), carotenoids (β-carotene and lutein), and phycocyanobilin. (Copyright © McGraw Hill)
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from article Plant pigment
The autumn colors of leaves are produced by carotenoid pigments. During the autumn, leaves stop their production of chlorophyll, providing the opportunity for the orange and yellow carotenoid colors observed in autumn leaves to predominate. In…
