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SEM

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Micropillar with Pt Bridges

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

Taken by Helios NanoLab microscope

Magnification: 5000x
Sample: GaAs
Detector: SE
Voltage: 3 kV
Working Distance: 4.2 mm

Skeleton Starfish mouth

Skeleton Starfish mouth

Courtesy of Mrs. Merce Moncusi Mercade , Universitat Rovira i Virgili

Taken by Quanta SEM microscope

Magnification: x24
Sample: skeleton
Detector: LFD

CleanCHK5

Taken by Explorer 4 CleanCHK microscope

Dracocephalum Nectary

Dracocephalum nectary, critical point dried, coated with Pd/Au

Courtesy of Mr. Michał Rawski , Maria Curie-Sklodowska University in Lublin

Taken by Quanta 3D microscope

Magnification: 75x
Sample: plant tissue
Detector: ETD SE
Voltage: 2 kV
Vacuum: 4.19e-4 Pa
Horizontal Field Width: 1.99 mm
Working Distance: 10.0
Spot: 4.5

Mammacarcinoma + NK Cell

Mammacarcinoma Cell attacked by Natural Killer Cell

Courtesy of Mr. Oliver Meckes , eye of science

Taken by Quanta SEM microscope

Magnification: 6000x
Sample: biological, gold coated
Detector: Se, BSE + BSE
Voltage: 7 kV
Vacuum: High Vac.
Working Distance: 9mm
Spot: 3,0

Star shape percipitation

While I was exploring my laser clad sample, I found this beautiful star shining on the screen.

Courtesy of Mr. SEYYED HABIB ALAVI , Oklahoma State University

Taken by Quanta SEM microscope

Magnification: 29000
Sample: Laser clad steel
Detector: SE
Voltage: 20 kV
Working Distance: 10.5
Spot: 6.0

Seed Hook

The hook mechanism a seed uses to attach to objects or animals in order for travel away from the parent plant.

Courtesy of ANDREA GUSMAN

Taken by Nova NanoSEM microscope

Magnification: 1581x
Sample: Seed
Detector: SE
Voltage: 5-18kV
Vacuum: 10^-6 torr
Horizontal Field Width: 189 μm
Working Distance: 6.4 mm
Spot: 2.0 nA

Water droplets

Water droplets on shell of brachiopod

Courtesy of Dr. Jim Buckman , Heriot-Watt University

Taken by SEM microscope

Detector: GSE
Vacuum: ESEM

Eggs

Surface of activated carbon used as adsorbent in water treatment processes. Activated carbons are porous nature materials with high internal surface which gives them excellent adsorbent properties. This carbon has been prepared from biomass waste, specifically from walnut shells.

Courtesy of Dr. Maria Carbajo , UNIVERSIDAD DE EXTREMADURA

Taken by Quanta 3D microscope

Magnification: 700x
Sample: Activated carbon
Detector: SE
Voltage: 5 kV
Vacuum: 10-3 Pa
Horizontal Field Width: 250 μm
Working Distance: 10 mm
Spot: 5.0

Electron Balls

Electron Diffraction Pattern obtained by systematic tilting of BaTiO3 crystal

Courtesy of SOUMITRA CHATTERJEE

Taken by Tecnai microscope

Sample: BaTiO3
Detector: Gatan CCD camera (1K X 1K)
Voltage: 300 kV
Spot: 7

Caos

Anchored Carbon nanotubes encapsulating crystalline nanowires

Courtesy of Desiderio Giovanni

Taken by Quanta SEM microscope

Magnification: 20000x
Sample: Carbon, Sn
Detector: ETD
Voltage: 15KV
Vacuum: HV
Horizontal Field Width: 2.0
Working Distance: 8.5
Spot: 3.0

Polystyrene Point

self-organized 300nm polystyrene spheres

Courtesy of Tom Yuzvinsky

Taken by Quanta 3D microscope

Magnification: 40,000X
Sample: polystyrene spheres
Voltage: 10kV
Horizontal Field Width: 1 μm
Working Distance: 8.3mm

Zebrafish

The Scanning Electron Microscope (SEM) image is of the head of an embryonic Zebrafish. This is a model organism currently being used for studies into the genetic causes of neurodegeneration. This research project involves Kim Wager, a Ph.D. student jointly supervised by Dr Claire Russell (RVC) and Professor Robert Harvey (UCL School of Pharmacy). The Zebrafish was imaged under a FEI Quanta 200F Scanning Electron Microscope. Firstly, the sample was chemically fixed in 4% (w/v) paraformaldehyde in 0.1M Sodium Cacodylate buffer, followed by dehydration in graduated alcohol and drying in a Leica Critical Point (CPD300) dryer. Prior to imaging, the specimen was given a 5nm gold coating in a Quorum Q150 Sputter coater and imaged at 5KV. In addition, a high tilt angle of 65 degrees enhanced the full structure of the head region. A high-resolution digital image was captured, imported into Photoshop and was artistically coloured by Ms Annie Cavanagh.

Courtesy of David McCarthy

Taken by Quanta SEM microscope

Magnification: 500
Sample: Biological
Detector: SE
Voltage: 5KV
Vacuum: 112/e-3 Pa
Horizontal Field Width: 512
Working Distance: 15mm
Spot: 2

Cross-Section of a Bump

TSV microbumps in a stacked die package.

Courtesy of FEI

Taken by Vion Plasma microscope

Sample: silicon
Horizontal Field Width: 333 μm
Working Distance: 16.6 mm

Hydroxyapatite

Hydroxyapatite is a form of calcium phosphate that has a large number of applications such as bone implants, and drug delivery systems. For each application, the use of calcium based materials is optimized by specifying their geometry, dimension, density, pore size, mechanical strength, purity, and chemical phase.

Courtesy of Mr. FRANCISCO RANGEL , MCTI/INT

Taken by Quanta SEM microscope

Magnification: 3,000x
Sample: Hydroxyapatite
Voltage: 20 kV
Vacuum: 130 Pa
Horizontal Field Width: 99.5 μm
Working Distance: 16.6
Spot: 4.0

Enterococcus faecalis

Enterococcus faecalis biofilm

Courtesy of Ms. Thaís Silva , Instituto Nacional de Tecnologia

Taken by Quanta SEM microscope

Magnification: 30.000
Sample: Human tooth
Detector: LFD
Voltage: 10
Horizontal Field Width: 9.95
Working Distance: 9.9
Spot: 3.0

Martian water

Droplets of water on a Martian landscape! actually on a piece of sandstone

Courtesy of Dr. Jim Buckman , Heriot-Watt University

Taken by SEM microscope

Magnification: 714
Sample: water and sandstone
Detector: GSE
Voltage: 20 kV
Vacuum: 6.5 Torr
Working Distance: 8.3 mm
Spot: 4.8

G4 PFIB TEM 230kx

G4 PFIB TEM 230kx

Taken by Helios G4 PFIB microscope

EDS Compositional Maps

EDS compositional maps of 300 × 250px collected and quantified in 10 min. Light elements such as Boron, Carbon and Oxygen are mapped in the composite nanostructure. Product: Talos TEM

Taken by Talos microscope

Zinc crystals

Zinc crystals that have been adsorbed on the surface of an alginate gel after being subjected to a process of wastewater treatment.

Courtesy of Dr. Maria Carbajo , UNIVERSIDAD DE EXTREMADURA

Taken by Quanta SEM microscope

Magnification: 15000x
Sample: Alginate gel
Detector: SE
Voltage: 15 kV
Vacuum: 10-3 Pa
Horizontal Field Width: 20 μm
Working Distance: 10.3 mm
Spot: 5.0

Au islands grown on MoS2

Au islands grown on MoS2

Courtesy of Dr. Benedykt R. Jany , Marian Smoluchowski Institute of Physics Jagiellonian University Krakow

Taken by Quanta 3D microscope

Horizontal Field Width: 2.98μm

Zinc Oxide

Zinc Oxide.

Courtesy of Mr. FRANCISCO RANGEL , MCTI/INT

Taken by Quanta SEM microscope

Magnification: 4,831
Sample: Zinc oxide
Detector: Mix: SE plus BSE.
Voltage: 20 kV
Horizontal Field Width: 74.6
Working Distance: 17.5
Spot: 3.0

Glandular tricomes on Walnut stem surface-2

Order: Juglandales Family: Juglandaceae (walnut family) Genus_species: Juglans nigra Glandular tricomes on lower leaf surface from a Walnut tree

Courtesy of Louisa Howard

Taken by Quanta SEM microscope

Magnification: 200
Detector: SE
Voltage: 15kV
Working Distance: 9.2
Spot: 3.0

Ebola virus 2

Cryo TEM of Ebola virus with 10 nm gold

Courtesy of Daniel Beniac

Taken by Tecnai microscope

Magnification: 80,000
Detector: CCD
Voltage: 200 kV

Neuron on DNA Surface

This is an embryonic nerve cell growing on DNA. In this system DNA is being studied as a tool to dynamically control surface adhesion for cells. Changing the cell behavior at different time intervals allows us to recreate the dynamic growth sequences that occur naturally in regenerating animals like newts.

Courtesy of Dr. Mark McClendon , Northwestern University

Taken by Quanta SEM microscope

Magnification: 8,000X
Sample: Embryonic Nerve Cell
Detector: SE
Voltage: 3kV
Vacuum: 2 e-3Pa
Horizontal Field Width: 20um
Working Distance: 6
Spot: 3