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Cool Images |
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![](image/quicktime.gif) |
Oil/Water droplets in microfluidic device for high-throughput measurements
Authors: Steve Hudson
and Joao Cabral |
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![](image/quicktime.gif) |
Flow focusing and oil/water droplet formation in microfluidics.
Author: Joao Cabral |
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![](image/quicktime.gif) |
Oil/Water droplets in microfluidic device for high-throughput measurements
Authors: Steve Hudson
and Joao Cabral |
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![](image/quicktime.gif) |
Oil/Water droplets in microfluidic symmetric T-junctions.
Author: Joao Cabral |
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![](image/quicktime.gif) |
Combinatorial phase separation study of a library of polymer mixtures
(polystyrene and polybutadiene). Automated parallel turbidity
Author: Joao Cabral |
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A subset from an array of optical microscope images of ipS at t
= 65 min and various (Tx, h)
Author: Kathryn Beers |
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Topography of ipS crystals, Tx = 193°C (scale bars: 10 ?m)
Author: Kathryn Beers |
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![Micrograph of simulated morphology and finite clement mesh](image/mesh-T.jpg) |
Micrograph of simulated morphology and finite clement mesh
Author: Martin Chiang |
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Figure displays merged and registered OCM and CFM images
145 mm below the surface of a TEMP. The TEMP consists of a volume
fraction of 50 % poly(ecaprolactone) (PCL) scaffold that was cultured
with fetal chick osteoblasts for 10 weeks and stained with a nuclear
Author: Joy Dunkers |
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![](image/quicktime.gif) |
Author: Joy Dunkers |
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![a) Scattered intensity as a function of shear rate from multi-walled carbon nanotubes immersed in PIB Boger fluid. Anisotropy in scattering reflects flow alignment of the tubes](image/nanotube-suspensions-t.jpg) |
(a) Scattered intensity as a function of shear rate
from multi-walled carbon nanotubes immersed in PIB Boger fluid. Anisotropy
in scattering reflects flow alignment of the tubes.
(b) Scattered intensity as a function of time (at fixed shear rate)
from multi-walled carbon nanotubes suspended in PIB Boger fluid.
Initially flow aligned, the developing intensity in the horizontal
direction reflects fractionation in tube orientation with some tubes
aligned with the flow and others with the vorticity direction.
(c) Comparison of experimental (left) and theoretical light scattering
predictions (right) for multi-walled carbon nanotubes. Tubes with
a characteristic length of approximately 10microns can be seen in
the micrograph. Note that the majority of the tubes are not straight,
but rather have some degree of curvature.
Author: Dan Fry |
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Osteoblasts were cultured on a thin film of poly(L-lactic acid),
fixed and stained. DAPI was used to stain cell nuclei to fluoresce
blue and Texas-red-C2-maleimide was used to stain cell membranes
to fluoresce red. The large “iron cross” in the background is birefringence
from a spherulite seen with crossed polarizers.
Author: Carl Simon |
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Picture 1: The nanoporous surface structure is a result
of evaporative cooling at the fiber surface due to rapid solvent
evaporation. The cooling results in vapor condensation from moisture
in the atmosphere in the form of droplets that imprint the surface
of the fiber.
Picture 2: Nanoporous Surface Structure on PS Fiber Electrospun
from THF.
Author: Jeannie Stephens |
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![Hi resolution TEM (transmission electron microscopy) of nano hydroxyapatite (HA) prepared by a spray drying method. TEM shows that HA particles, 5 nanometer to 10 nanometer in size, have well defined crystalline structure.](image/nano-hydroxyapatite-T.jpg) |
Hi resolution TEM (transmission electron microscopy) of nano hydroxyapatite
(HA) prepared by a spray drying method. TEM shows that HA particles,
5 nanometer to 10 nanometer in size, have well defined crystalline
structure.
Author: Larry Chow |
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This image is a small-angle neutron scattering pattern measured
for a dilute aqueous suspension of single-walled carbon nanotubes
(SWNTs) under simple shear flow. The shear rate is 2000 1/s and
the measurements are taken in the plane of flow and vorticity. As
predicted by theory for this aspect ratio and composition, the patterns
exhibit little anisotropy, consistent with only weak alignment.
Author: Erik Hobbie |
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![](image/quicktime.gif) |
Peel front during the removal of a commercial tape from a glass
substrate (microscopic observation)
Author: Arnaud Chiche |
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![Micropatterned PDMS surfaces made by surface oxydation under strain (no mask)](image/replicat-2D-strain-x20-t.jpg) |
Micropatterned PDMS surfaces made by surface oxydation under strain
(no mask)
Author: Arnaud Chiche |
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Self organisation of a DBS-based gels prepared at different temperatures
(AFM micrographs taken after drying)
Author: Arnaud Chiche |
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Optical micrographs of a commercial adhesive tape after a peel
experiment (related with the peel test shown in the previous movie)
Author: Arnaud Chiche |
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![Patterns with a 2-D Cross Section: The transmission geometry allows simultaneous characterization of the full 2-d cross section of a pattern. The measurement of pattern shape is therefore general to a wide variety of pattern shapes including via pads, via posts, and contact holes. Currently, characterization of contact holes, for instance, is a challenge for most metrology techniques due to a lack of flat surfaces.](image/Saxs01-t.jpg) |
Patterns with a 2-D Cross Section:
The transmission geometry allows simultaneous characterization of
the full 2-d cross section of a pattern. The measurement of pattern
shape is therefore general to a wide variety of pattern shapes including
via pads, via posts, and contact holes. Currently, characterization
of contact holes, for instance, is a challenge for most metrology
techniques due to a lack of flat surfaces.
SAXS detector image of via pads (oxide) (sample provided by W.
Chism, SEMATECH)
Author: Ron Jones |
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![Simple model predicting relative intensities](image/Saxs02-t.jpg) |
Simple model predicting relative intensities
Author: Ron Jones |
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![SAXS Detector image](image/Saxs03-t.jpg) |
SAXS Detector image
Author: Ron Jones |
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NIST Materials Science & Engineering
Laboratory - Polymers Division |