A photomicrograph (or micrograph) is an image that is taken through a microscope, and we’ve covered a few of those on the blog including Nikon’s “Small World” competition, a traveller’s tale in a strange microscopic world, and an incredibly close-up look at insects. If you missed any of those, click here to see them. North American scientific instruments company, FEI, is in the business of supplying electron microscopes to a various industries and it is the fantastic images taken by their line of scanning electron microscope (or SEM), that we’ll show you today. According FEI, their SEMs can magnify 20 to 1,000,000 times better a light microscope and can be used in tasks that contain long scientific words such as 3D cellular ultrastructure, macromolecular localization, and 3D tissue imaging. The proof is really in the details. Hit the jump to see some of the FEI’s microscopic images. Hydrothermal Worm This cute critter is a marine organism found near hydrothermal vents in the ocean. It has been magnified 525 times. Platinum Nano-Wire This is a platinum wire that has been milled to 50 nanometres in diameter. It is to be used a gas sensor. Human Tooth Dentin is found in teeth and comprises tiny channels called dentinal tubules. This images shows those tubules. Biofilm This images shows a biofilm that has developed on carbon steel after 14 days of immersion in seawater. Canyon This is what happens when you cut a semiconductor at a sloping angle. Silver and Copper These colourfully geometric objects are silver particles and copper crystals. Catepillar Mouth A catepillar’s mouth and sensory organs are shown here. Sponge Spicule This is an image of a spicule as found in a South African sponge (the animal, and not the dish-washing implement). Crystal Ocean These are copper crystals on a copper surface. Nanoflowers These flowers have been obtained through hydrothermal synthesis, a process of growing crystals from aqueous solutions. See more wonderful images taken by electron microscopes on the FEI website or on Flickr .
近日，中国科学院和中国农业大学等单位联合在PLoS上发表了“Transcriptome Phase Distribution Analysis Reveals Diurnal Regulated Biological Processes and Key Pathways in Rice Flag Leaves and Seedling Leaves”的论文，文中有一个图表特别像中国古代的阴阳八卦图，虽然研究的是昼夜节律基因表达的，应该做成“钟表”形式，但作者能把实验结果做成这样的“八卦美图”还是值得称赞的，需要有一定的想象力。本文已经入选本人本周的最佳论文，O(∩_∩)O~ 链接： http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0017613
The Silk Collective, moon rises, and other winning nanotechnology images ( Nanowerk News ) Here is another installment of our collection of amazing images from nanotechnology labs from all over the world. You can find other nanotechnology images here . During the 2010 MRS Fall Meeting in Boston, MA in December, the MRS conducted the tenth installment of the popular "Science as Art" competition ( View winners from past competitions ). Here are the six first-place and second-place winners: The silk collective. Silk, produced by the silkworm Bombyx mori, has been viewed for millennia as a prestigious and valuable material. This protein has recently found application as a high technology material in biomedical micro- and nanotechnology. This scanning electron microscopy image depicts a detail of a micro patterned silk surface, fabricated with an all-aqueous micro molding technique. The silk structures, measuring approximately one micrometer in diameter, were fabricated at room temperature and under ambient pressure. The research is performed in Prof. Fiorenzo Omenetto's group (Ultrafast Nonlinear Optics and Biophotonics Laboratory) and is part of "the silk collective" at Tufts University. (Image: Konstantinos Tsioris, Tufts University) Stem of nanoflowers. SThis picture is created from a high resolution SEM image of zinc oxide "nanoflowers" synthesized by a physical vapor deposition technique. (Image: Abhishek Prasad, Michigan Technological University) Surfacing Turtle. Calcium carbonate crystals mineralized on a chitosan thin film. Image taken in a scanning electron microscope with the secondary electron detector at 6 kV. The sample was coated with Pt/Pd for 30 seconds. (Image: Philipp Hunger, Drexel University) Rising Moon. Tin Ball on KOH-etched Si surface appears like the moon rising above Si pyramids. This image was obtained using a scanning electron microscope at 16,100x magnification and was colorized using Adobe Photoshop. (Image: Sedat Canli, Middle East Technical University) Aurora Zinc Oxide. This picture was created from the convergence of a high-resolution cross-sectional and a plan view SEM image of a zinc oxide "nanowall structure" synthesized by a metal-organic chemical vapor deposition technique. Color was added to the original image. (Image: Dong Chan Kim, Sungkyunkwan University) Grassland Sunrise. High-resolution SEM image of germanium/silicon core/shell heterostructure nanowires (diameter ∼10 nm) synthesized by a two-step chemical vapor deposition method on a layered Si/SiO2 substrate. (Image: Yongjie Hu, Harvard University) 来源:纳米艺术网
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