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Sildenafil is the active ingredient in Viagra tablets.Sildenafil was re crystallised in 10% alcohol and allowed to air dry, then adhered onto a SEM stub using double sided carbon adhesive discs, prior to viewing the sample was gold coated in an Emitech K550 Sputter Coater for 2 minutes at 20mA. The coated sample was then transferred into a FEI XL30 Scanning Electron Microscope and imaged at 10KV using a high tilt angle. High definition digital images were captured and imported into Photoshop for enhancing and colouring.
Courtesy of David McCarthy
Taken by Quanta SEM microscope
The mature pollen grains of Arabidopsis thaliana at anthesis.
Courtesy of Dr. Wann-neng Jane , Institute of Plant and Microbial Biology, Academia Sinica
spherules of sweat
Courtesy of Dr. Antonietta Gatti , Nanodiagnostics
colorized tin ball
Courtesy of Mr. Mucciolo Antonio , University of Lausanne
Courtesy of Mr. MUHAMMET AYDIN , Namık kemal university
Large particle of the clay mineral Dickite.
Courtesy of Frank Friedrich
selective removal of a single pillar. designed shape is 200nm x 200nm cross section with 200nm depth. etched into silicon
Courtesy of Dr. randy polson , university of utah
Taken by Helios NanoLab microscope
Bursted indium oxide thin film
Courtesy of Ralf Müller
Taken by Nova NanoSEM microscope
Cells seeded on the scaffold
Courtesy of Dr. Noor Azlin Yahya , Universiti Malaya
Grid used for sample growth and TEM observation
Courtesy of Cyril GUEDJ
Taken by DualBeam microscope
Defect made of silver paste, similar to the famous "Semeuse" engraved by Oscar Roty . This character has been widely used for french coins.
Courtesy of Dr. Cyril GUEDJ , CEA, LETI, MINATEC Campus
Taken by FIB microscope
Electrochemically grown single-crystalline gold
Courtesy of Dongchan Jang
Mirror Detector used to show metal catalyst on top of Nanotube
Courtesy of FEI
Taken by Verios XHR SEM microscope
A silica microsphere (3.7um dia.) impacts a polymer composite comprising 20nm thick hard and soft layers. Initially the layers were aligned in the vertical direction and deformed by the 1.1km/s speed impact.
Courtesy of Jae-Hwang Lee
3 Slice Surface 3 - VolumeScope
Taken by Teneo VolumeScope microscope
Taken by Helios NanoLab G3 microscope
Formation of glandular trichomes on lower leaf surface of a young leaf of basil (Ocimum basilicum). The smaller trichomes with four evident cells have just formed and the cuticles covering their four glandular cells still adhere to the glandular cells. Three of the larger trichomes are more mature and essential oils secreted from the glandular cells of these trichomes have caused the cuticles covering them to separate from the cells and balloon outward, hiding the glandular cap cells below. This unfixed leaf was imaged with an FEI Quanta 200F SEM in environmental mode at Washington State University’s Franceschi Microscopy and Imaging Center. Scale bar = 150 µm.
Courtesy of Glenn Turner
CuInSe2 (Copper indium gallium selenide)thin films grown by electrodeposition in aqueous solution. The dendritic and colum structure shows the formation of nuclei growing in irregular regions of the substrate.
Courtesy of FRANCISCO RANGEL
Graphite onion-like structures on an amorphous holey-carbon film.
Courtesy of Yaron Kauffmann
Taken by Titan microscope
Negativo de imagen HAADF de nanopartículas de Rutenio depositadas sobre microesferas de xerogel de carbón. HAADF negative image of Ru nanoparticles deposited on xerogel carbon microballs.
Courtesy of Dr. María del Mar Abad Ortega , Universidad de Granada
Section through a Polystyrole insulating foam. Showing the fine Walls of the Material and polymere structure.
Courtesy of Oliver Meckes
This is the cover page image published in Developmental Cell, August 14 2012. The Image was taken at Center for Electron Microscopy and Nanofabrication, Portland State University by instrument manager Greg Baty to support the post doctorial research work of Katie Kindt at OHSU (Teresa Nicolson lab Oregon Hearing Research Center). The research was funded by NIH and HHMI grant. The image is of a Zebra fish neuromast taken near the ear. Katie Kindt false colored the SEM image taken by Greg Baty Katie’s main interest in taking the SEM image was to examine the stereocilia and correlate the result with confocal studies that where performed while the zebra fish was alive. Katie and Gabe Finch at OHSU had a difficult time preparing the fish for SEM, due to the variability in a rapidly growing fish that is three days old. It was necessary to perform some digestion to expose the cilia for fixation. This was a very difficult imaging job for Greg since CEMN does not have a sputter coater with a tilting orbital stage and our Sirion is a high vacuum only instrument. The length and geometry of the cilia combined with charging due to poor coating tends to cause the celia to move in the electron beam. It took an interdisciplinary team effort to produce an image of this quality on a high vacuum XL30 Sirion. K. S. Kindt, G. Finch, and T. Nicolson, "Kinocilia Mediate Mechanosensitivity in Developing Zebrafish Hair Cells", Developmental Cell, Vol 23, (2), pgs 329-341 (2012). Katie Kindt firstname.lastname@example.org Greg Baty email@example.com Greg Baty firstname.lastname@example.org
Courtesy of Greg Baty
Structure of cooked cous cous. Grain on right hand side.
Courtesy of Dr. jim buckman , Heriot-Watt University
Head mid piece of a mouse sperm.
Courtesy of Gunther Wennemuth
deposits shaped like the leaves of an aquatic weed
Courtesy of Dr. Swarnagowri Addepalli , GE India Technology Center Pvt. Ltd.
YMnO3 thin film grown by MOCVD on silicon substrate at 750°C. Image processing by Andrei Branescu.
Courtesy of IONELA ILIESCU
Contamination external surface of polymeric material.
Courtesy of Marco Casinelli
Atomic resolution scanning transmission electron microscope (STEM) image of nanoscale precipitates in an Al-Cu-Li-Mg-Ag aerospace alloy, tilted on the  zone axis. Acquired in high angle annular dark field (HAADF) mode. The pixel size is 0.02 nm, acquired over 4 minutes with no post processing. Dr. Matthew Weyland, Monash Centre for Electron Microscopy, Prof. B.C. Muddle and S. Gao, ARC Centre for Excellence Design in Light Metals Titan3™ 80-300 S/TEM
Courtesy of Dr. Matthew Weyland, Prof. B.C. Muddle, and S. Gao
Taken by Titan Themis 200 microscope
The image illustrates the peculiar eggshell surface of a fly, Microdon mutabilis, which parasitize host ants of the genus Formica.
Courtesy of Prof. Andrea Di Giulio , University Roma Tre, Department of Science
Multiwalled carbon nanotube filled with crystalline material.
Courtesy of Ms. Elzbieta Pach , Institut Catala de Nanociencia i Nanotecnologia (ICN2)
Aqueous polymeric film dried under vacuum environment.
Courtesy of Dr. Erico Teixeira Neto , LME-CNPEM
Taken by Inspect microscope
A Diatome in Izmir Bay
Courtesy of Gokhan ERDOGAN
This image shows the skin of a great white shark. The unique shape of the dermal denticles improve the fluid dynamics of the shark.
Courtesy of Mrs. Miranda Waldron , University of Cape Town
Copper rods nd nano fibers radiating as small shrubs.
Courtesy of wadah mahmoud
Cryo TEM of Ebola virus, with tomogram overlay
Courtesy of Daniel Beniac
Taken by Tecnai microscope
STEM imaging for yeast (High angle annular Dark field=Black). TEM imaging for yeast (Bright field=White). Samples preparation was done by HPF & FS.
Courtesy of Mr. TZU-HAN HSU , Academia sinica
The scanning electron microscopes (SEM)-image of field emitters, formed by focused ion beam milling. The diameter of each tip less than 100 nm.
Courtesy of Alexey Kolomiytsev
HR-TEM image showing crystalline lattice of B shell and Ni nanocrystal. Product: Talos TEM
Taken by Talos microscope
A micropillar is provided with lateral contacts in order to generate an in-plane electrical field inside the cavity. The contacts are formed by focused ion beam induced deposition of platinum between a gold layer and the micropillar. The image was colorized (Pt: blue, Au: yellow, micropillar: red).
Courtesy of Johannes Beetz