QUANTIFOILThere are various sizes and shapes of holes arranged precisely on the carbon film. Compared with ordinary porous carbon membranes, this type of membrane exhibits better performance under transmission electron microscopy（TEM）Grid and low-energy electron point source microscope(LEEPS)Online applications have more advantages.QuantifoilThe geometric shape fixed by porous carbon film is convenient for transmission electron microscopy（TEM）Automated operation is basically not feasible for ordinary carbon films. This porous carbon support membrane has superior performance but slightly higher cost,QUANTIFOILCarbon film has a large pore surface area and is commonly used to reduce sample thickness and minimize distortion caused by support film interference. The common pore types of porous carbon membranes include square, circular, elliptical and circular combinations, and so on.

QUANTIFOILPorous carbon membranes can be used to support ultra-thin carbon membranes or directly serve as carriers for larger samples (such as micron sized powders). This is in electron diffraction（ED）Electron energy loss spectrum(EELS)Electronic energy loss spectroscopy imaging and dark field imaging are very important. This type of membrane can also be applied to the study of material nano characteristics, such as the study of biomacromolecule complexes in the free suspension layer of carriers.

1、 Circular hole carbon film

QUANTIFOILCircular hole carbon film（with circular holes）More suitable for low-temperature transmission electron microscopy(TEM)Because circular holes are more conducive to forming a uniformly thick ice layer. The choice of hole spacing depends on the required magnification and whether the membrane trace is inserted into the final image. If the membrane is inserted into the final image, image quality assessment is relatively easy because the membrane is much larger in power spectrum than an isolated ice layer. aperture2and1.2µmofQuantifoilCircular hole membrane can be used for30,000to40,000Magnify by multiple times. If a larger beam position tolerance or beam diameter is required(As in automatic image acquisition)Recommended for useQUANTIFOIL R2/4When focusing on the edge of a small hole deeply imprinted in ice, rather than on a thin film adjacent to the hole, it is usually usedR 2/1.

The available circular hole types are: 0.6/1, 1/2, 1/4, 1.2/1.3, 1.2/20, 2/1, 2/2, 2/4, 3/3, 3/5, 3.5/1, 5/10, 5/20, 6/6.5, 6/100, 10/5, 10/10, 10/20, 17/5.

The following products use 3 nets00If you need porous carbon films made of copper rhodium alloy, nickel mesh, molybdenum mesh, NH2 copper mesh, NH7 copper mesh, or discoverer supported mesh, please contact us directly!

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2、 Square hole carbon film

QUANTIFOILSquare pore carbon film,Having a smaller grid line width, suitable for transmission electron microscopy（TEM）Analysis. The thickness of the carbon film is too thin to cover the entire metal mesh spacing, nor can it affectXThe X-ray energy spectrum analysis area provides good support. This square hole film is suitable for films larger than7x7 µmMesh particles are also useful. When you not only require good mechanical stability, but also the maximum opening area,QUANTIFOIL S7/2Show the best geometry.

The following products are used for networking purposes200Copper mesh, gold mesh, and porous carbon film of nickel mesh are also available!

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three、 Quantifoil ultra-thin carbon film

Overlay a 2nm thick carbon film on top of the porous carbon film in Quantifoil.