Polymer division banner Polymer division home page Research areas link Research projects link Research facilities link Staff contact link Search link NIST link Polymer division home page Materials Science and Engineering Laboratory
Polymers Main Page > Cool Images
 

Cool Images
`°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°`
Oil/Water droplets in microfluidic device for high-throughput measurements Flow focusing and oil/water droplet formation in microfluidics Oil/Water droplets in microfluidic device for high-throughput measurements Oil/Water droplets in microfluidic symmetric T-junctions Combinatorial phase separation study of a library of polymer mixtures (polystyrene and polybutadiene). Automated parallel turbidity A subset from an array of optical microscope images of ipS at t = 65 min and various (Tx, h) Topography of ipS crystals, Tx = 193°C (scale bars: 10 ?m)
Micrograph of simulated morphology and finite clement mesh 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 Scaffold-movie 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. 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. Mechanics of Fiber and Nano- filled Composites Picture 2: Nanoporous Surface Structure on PS Fiber Electrospun from THF
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 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 Peel front during the removal of a commercial tape from a glass substrate (microscopic observation) Micropatterned PDMS surfaces made by surface oxydation under strain (no mask) Self organisation of a DBS-based gels prepared at different temperatures (AFM micrographs taken after drying) Optical micrographs of a commercial adhesive tape after a peel experiment (related with the peel test shown in the previous movie) 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.
Simple model predicting relative intensities SAXS Detector image    
 
`°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°``°º¤ø,¸¸,ø¤º°`
 
Oil/Water droplets in microfluidic device for high-throughput measurements  

Oil/Water droplets in microfluidic device for high-throughput measurements

Authors: Steve Hudson and Joao Cabral

Flow focusing and oil/water droplet formation in microfluidics  

Flow focusing and oil/water droplet formation in microfluidics.

Author: Joao Cabral

Oil/Water droplets in microfluidic device for high-throughput measurements

Oil/Water droplets in microfluidic device for high-throughput measurements

Authors: Steve Hudson and Joao Cabral

Oil/Water droplets in microfluidic symmetric T-junctions

Oil/Water droplets in microfluidic symmetric T-junctions.

Author: Joao Cabral

Combinatorial phase separation study of a library of polymer mixtures (polystyrene and polybutadiene). Automated parallel turbidity  

Combinatorial phase separation study of a library of polymer mixtures (polystyrene and polybutadiene). Automated parallel turbidity

Author: Joao Cabral

A subset from an array of optical microscope images of ipS at t = 65 min and various (Tx, h)

A subset from an array of optical microscope images of ipS at t = 65 min and various (Tx, h)

Author: Kathryn Beers
Topography of ipS crystals, Tx = 193°C (scale bars: 10 ?m)

Topography of ipS crystals, Tx = 193°C (scale bars: 10 ?m)

Author: Kathryn Beers

Micrograph of simulated morphology and finite clement mesh

Micrograph of simulated morphology and finite clement mesh

Author: Martin Chiang
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   

 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
Scaffold-movie  

Author: Joy Dunkers
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 (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
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.

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
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.

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

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.

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
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

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
Peel front during the removal of a commercial tape from a glass substrate (microscopic observation)  

Peel front during the removal of a commercial tape from a glass substrate (microscopic observation)

Author: Arnaud Chiche

Micropatterned PDMS surfaces made by surface oxydation under strain (no mask)   Micropatterned PDMS surfaces made by surface oxydation under strain (no mask)   Micropatterned PDMS surfaces made by surface oxydation under strain (no mask)

Micropatterned PDMS surfaces made by surface oxydation under strain (no mask)

Author: Arnaud Chiche

Self organisation of a DBS-based gels prepared at different temperatures (AFM micrographs taken after drying)  Self organisation of a DBS-based gels prepared at different temperatures (AFM micrographs taken after drying)  Self organisation of a DBS-based gels prepared at different temperatures (AFM micrographs taken after drying)  Self organisation of a DBS-based gels prepared at different temperatures (AFM micrographs taken after drying)

Self organisation of a DBS-based gels prepared at different temperatures (AFM micrographs taken after drying)

Author: Arnaud Chiche

Optical micrographs of a commercial adhesive tape after a peel experiment (related with the peel test shown in the previous movie)   Optical micrographs of a commercial adhesive tape after a peel experiment (related with the peel test shown in the previous movie)   Optical micrographs of a commercial adhesive tape after a peel experiment (related with the peel test shown in the previous movie)   Optical micrographs of a commercial adhesive tape after a peel experiment (related with the peel test shown in the previous movie)

Optical micrographs of a commercial adhesive tape after a peel experiment (related with the peel test shown in the previous movie)

Author: Arnaud Chiche

 
  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. 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

    •   Simple model predicting relative intensities
  • Simple model predicting relative intensities

    Author: Ron Jones

    •   SAXS Detector image

    SAXS Detector image

    Author: Ron Jones
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
    NIST Materials Science & Engineering Laboratory - Polymers Division