C-flat Grids

Product Overview

C-flat™ is a holey carbon support film, manufactured using a patent pending semiconductor-based technology without plastics, resists or other soft materials. As a result, the carbon films are flat, uniform and free of residues or plastics. C-flat™ is designed to be an “out of the box” solution, and should require minimal sample preparation. Extensive plasma cleaning is not needed, and could potentially thin the carbon, making it too fragile for blotting or freezing.

Plasma Preparation

If you are using C-flat™ for the first time, it is recommended that no plasma preparation be used initially. As with any carbon film, plasma preparation is sometimes necessary to make the surface more hydrophilic. If your initial results dictate making the films more hydrophilic, below are some guidelines for preparation using several common systems.

Fischione Model 1020

  • 25% Oxygen / 75% Argon
  • Use 5 grid holder and dampening shield
  • Plasma clean grids for 10-30 seconds

Note: It is recommended that the dampening shield be used when cleaning C-flat™ using the Fischione Model 1020 plasma cleaner. The shield will dampen the effect of the plasma, reducing the erosion rate of the carbon while allowing the film to become more hydrophilic.

Gatan Solarus™

  • 25% Oxygen / 75% Argon
  • Place grids on a support (e.g. glass slide)
  • Set slide in the bottom of the chamber
  • Set RF power to 25 watts
  • Plasma clean grids for 10-20 seconds

Glow discharge

These systems vary widely depending on the manufacturer. Typically, keep the glow from the plasma dim and the clean time approximately 10-30 seconds.

Plunge Freezing

Recommended settings for plunge freezing with the Vitrobot™

  • Temperature: 4°C
  • Humidity: 100% (can vary between 90-100%)
  • Blot time: 3-5 seconds
  • Volume on Grid: 3µL (can vary)
  • Drain time: 0 seconds
  • Offset: 0 for regular samples, -1 for viscous

When using the Vitrobot™, it is recommended that the filter paper be changed regularly (generally after freezing 4-5 grids or 10 minutes, whichever comes first.) The filter paper can become saturated in the high humidity environment of the chamber.

Working with Viscous Samples

Generally, lowering the volume of solution on the grid can help to eliminate the need for multiple blots, which can damage the carbon film. As little as 1µL of solution can cover a 3mm grid area if the pipette tip is used to spread the drop, but reducing the volume to 1.5 or 2.0µL will help as well. Once the sample is on the grid, it should be blotted within a few minutes before further evaporation occurs. If a Vitrobot™ is used, changing the offset from 0mm to -1 or -2mm can also help.

Hydrophilicity / Hydrophobicity

Increasing the hydrophilicity of the carbon film will help a droplet spread evenly over the carbon, rather than pool on the surface. The most common method for achieving this is by plasma or glow discharge; recommended settings for various equipment are given. Keep in mind that C-flat™ is manufactured without any plastics or soft materials in the process, therefore plasma or glow discharge steps are only needed to make the surface more hydrophilic, not to clean. For this reason, a lower power and time is generally used.

Adding Carbon to C-flat™

Many C-flat™ parts are now offered in both the standard as well as a thicker carbon film, designed to give each lab the option to choose not only the most appropriate hole geometry and size, but also the ideal carbon thickness for their application. In addition, carbon can be added to C-flat™ either to thicken the existing hole pattern, or as a thin continuous overlay across the hole pattern. Overlays are often used when particles have a strong affinity towards the carbon material.

Keeping the Carbon Intact

C-flat™ is designed to be an “out of the box” solution. Extensive sample preparation steps are generally not required, and often carbon that is torn or broken is a sign of plasma cleaning that is too long and/or at too high a power setting. Please refer to the suggestions on plasma cleaner settings, as well as on working with viscous samples.

Code Title Option 1 Option 2 Option 3 Availability Price
EMSCFT422-100 C-flat holey thick carbon grids, for Cryo-TEM, 4.0um/2.0um 200 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT422-50 C-flat holey thick carbon grids, for Cryo-TEM, 4.0um/2.0um 200 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT424-50 C-flat holey thick carbon grids, for Cryo-TEM, 4.0um/2.0um 400 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT424-100 C-flat holey thick carbon grids, for Cryo-TEM, 4.0um/2.0um 400 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT2MH-50 C-flat holey thick carbon grids, for Cryo-TEM, multihole 200 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT2MH-100 C-flat holey thick carbon grids, for Cryo-TEM, multihole 200 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT4MH-100 C-flat holey thick carbon grids, for Cryo-TEM, multihole 400 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT4MH-50 C-flat holey thick carbon grids, for Cryo-TEM, multihole 400 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT-222C-100 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/2.0um 200 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT-222C-50 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/2.0um 200 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT-224C-100 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/2.0um 400 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCFT-224C-50 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/2.0um 400 mesh Copper Pack/50 2 weeks $671.00 AUD
EMSCFT205-50 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/0.5um 200 mesh Copper Pack/50 2 weeks $870.00 AUD
EMSCFT205-100 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/0.5um 200 mesh Copper Pack/100 2 weeks $1,395.00 AUD
EMSCFT212-100 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/1.2um 200 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT212-50 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/1.2um 200 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT412-100 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/1.2um 400 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT412-50 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/1.2um 400 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCF2MH-100 C-flat holey carbon grids, for Cryo-TEM, multihole 200 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCF2MH-25 C-flat holey carbon grids, for Cryo-TEM, multihole 200 mesh Copper Pack/25 2 weeks $411.00 AUD
EMSCF2MH-50 C-flat holey carbon grids, for Cryo-TEM, multihole 200 mesh Copper Pack/50 2 weeks $671.00 AUD
EMSCF2MH-100-AU C-flat holey carbon grids, for Cryo-TEM, multihole 200 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF3MH-100-AU C-flat holey carbon grids, for Cryo-TEM, multihole 300 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF4MH-100-AU C-flat holey carbon grids, for Cryo-TEM, multihole 400 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF4MH-100 C-flat holey carbon grids, for Cryo-TEM, multihole 400 mesh Copper Pack/100 2 weeks $1,328.00 AUD
EMSCF4MH-25 C-flat holey carbon grids, for Cryo-TEM, multihole 400 mesh Copper Pack/25 2 weeks $415.00 AUD
EMSCF4MH-50 C-flat holey carbon grids, for Cryo-TEM, multihole 400 mesh Copper Pack/50 2 weeks $674.00 AUD
EMSCF422-100-AU C-flat holey carbon grids, for Cryo-TEM, 4.0um/2.0um 200 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF423-100-AU C-flat holey carbon grids, for Cryo-TEM, 4.0um/2.0um 300 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF424-100-AU C-flat holey carbon grids, for Cryo-TEM, 4.0um/2.0um 400 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF424-50 C-flat holey carbon grids, for Cryo-TEM, 4.0um/2.0um 400 mesh Copper Pack/50 2 weeks $671.00 AUD
EMSCF424-25 C-flat holey carbon grids, for Cryo-TEM, 4.0um/2.0um 400 mesh Copper Pack/25 2 weeks $426.00 AUD
EMSCF424-100 C-flat holey carbon grids, for Cryo-TEM, 4.0um/2.0um 400 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCFT21-100 C-flat holey thick carbon grids, for Cryo-TEM, 1.0um/1.0um 200 mesh Copper Pack/100 2 weeks Quote only Quote
EMSCFT21-50 C-flat holey thick carbon grids, for Cryo-TEM, 1.0um/1.0um 200 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCFT41-50 C-flat holey thick carbon grids, for Cryo-TEM, 1.0um/1.0um 400 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCF242-50 C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 200 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCF242-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 200 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF242-100 C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 200 mesh Copper Pack/100 2 weeks Quote only Quote
EMSCF242-25 C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 200 mesh Copper Pack/25 2 weeks Quote only Quote
EMSCF342-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 300 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF442-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 400 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF442-50 C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 400 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCF442-100 C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 400 mesh Copper Pack/100 2 weeks Quote only Quote
EMSCF442-25 C-flat holey carbon grids, for Cryo-TEM, 2.0um/4.0um 400 mesh Copper Pack/25 2 weeks Quote only Quote
EMSCF212-100 C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.0um 200 mesh Copper Pack/100 2 weeks Quote only Quote
EMSCF212-25 C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.0um 200 mesh Copper Pack/25 2 weeks Quote only Quote
EMSCF212-50 C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.0um 200 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCF212-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.0um 200 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF312-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.0um 300 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF412-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.0um 400 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF24-50 C-flat holey carbon grids, for Cryo-TEM, 1.0um/4.0um 200 mesh Copper Pack/50 2 weeks $693.00 AUD
EMSCF24-25 C-flat holey carbon grids, for Cryo-TEM, 1.0um/4.0um 200 mesh Copper Pack/25 2 weeks $426.00 AUD
EMSCF213-100 C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 200 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCF213-50 C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 200 mesh Copper Pack/50 2 weeks $671.00 AUD
EMSCF213-100-AU C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 200 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF213-25 C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 200 mesh Copper Pack/25 2 weeks $426.00 AUD
EMSCF313-100-AU C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 300 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF313-100-CU C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 300 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCF413-100 C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 400 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCF413-25 C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 400 mesh Copper Pack/25 2 weeks $412.00 AUD
EMSCF413-50 C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 400 mesh Copper Pack/50 2 weeks $671.00 AUD
EMSCF413-100-AU C-flat holey carbon grids, for Cryo-TEM, 1.2um/1.3um 400 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCFT441-100 C-flat holey thick carbon grids, for Cryo-TEM, 4.0um/1.0um 400 mesh Copper Pack/100 2 weeks $1,432.00 AUD
EMSCFT441-50 C-flat holey thick carbon grids, for Cryo-TEM, 4.0um/1.0um 400 mesh Copper Pack/50 2 weeks $894.00 AUD
EMSCFT242-50 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/4.0um 200 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT442-100 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/4.0um 400 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT442-50 C-flat holey thick carbon grids, for Cryo-TEM, 2.0um/4.0um 400 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT213-100 C-flat holey thick carbon grids, for Cryo-TEM, 1.2um/1.3um 200 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT213-50 C-flat holey thick carbon grids, for Cryo-TEM, 1.2um/1.3um 200 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCFT413-100 C-flat holey thick carbon grids, for Cryo-TEM, 1.2um/1.3um 400 mesh Copper Pack/100 2 weeks $1,293.00 AUD
EMSCFT413-50 C-flat holey thick carbon grids, for Cryo-TEM, 1.2um/1.3um 400 mesh Copper Pack/50 2 weeks $656.00 AUD
EMSCF341-100-AU C-flat holey carbon grids, for Cryo-TEM, 4.0um/1.0um 300 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF441-CU-100 C-flat holey carbon grids, for Cryo-TEM, 4.0um/1.0um 400 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCF441-CU-25 C-flat holey carbon grids, for Cryo-TEM, 4.0um/1.0um 400 mesh Copper Pack/25 2 weeks $412.00 AUD
EMSCF441-CU-50 C-flat holey carbon grids, for Cryo-TEM, 4.0um/1.0um 400 mesh Copper Pack/50 2 weeks $671.00 AUD
EMSCF441-100-AU C-flat holey carbon grids, for Cryo-TEM, 4.0um/1.0um 400 mesh Gold Pack/100 2 weeks $1,583.00 AUD
EMSCF222C-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 200 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF-222C-100 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 200 mesh Copper Pack/100 2 weeks Quote only Quote
EMSCF-222C-25 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 200 mesh Copper Pack/25 2 weeks Quote only Quote
EMSCF-222C-50 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 200 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCF222C-50-Au C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 200 mesh Gold Pack/50 2 weeks Quote only Quote
EMSCF223C-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 300 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF223C-100 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 300 mesh Copper Pack/100 2 weeks Quote only Quote
EMSCF-322C-25 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 300 mesh Copper Pack/25 2 weeks Quote only Quote
EMSCF223C-50-Au C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 300 mesh Gold Pack/50 2 weeks Quote only Quote
EMSCF-223C-50 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 300 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCF-224C-100 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 400 mesh Copper Pack/100 2 weeks Quote only Quote
EMSCF224C-100-AU C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 400 mesh Gold Pack/100 2 weeks Quote only Quote
EMSCF-224C-25 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 400 mesh Copper Pack/25 2 weeks Quote only Quote
EMSCF-224C-50 C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 400 mesh Copper Pack/50 2 weeks Quote only Quote
EMSCF224C-50-Au C-flat holey carbon grids, for Cryo-TEM, 2.0um/2.0um 400 mesh Gold Pack/50 2 weeks Quote only Quote
EMSCF412-100 C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.2um 400 mesh Copper Pack/100 2 weeks $1,326.00 AUD
EMSCF412-25 C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.2um 400 mesh Copper Pack/25 2 weeks $412.00 AUD
EMSCF412-50 C-flat holey carbon grids, for Cryo-TEM, 2.0um/1.2um 400 mesh Copper Pack/50 2 weeks $671.00 AUD
EMSCF21-100-AU C-flat holey carbon grids, for Cryo-TEM, 1.0um/1.0um 200 mesh Gold Pack/100 2 weeks $1,946.00 AUD