Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon

QUANTIFOIL® is a perforated support foil with pre-defined hole size, shape and arrangement. It has advantages in electron microscopy (EM) or low-energy electron point source (LEEPS) microscopy when compared with conventional holey film.QUANTIFOIL® is offered with circular and square, orthogonal arranged holes. Films with different hole sizes and bar widths are available. Carbon is the standard material for the foil.QUANTIFOIL® is a superior quality of holey carbon film, which facilitates the use of automation in TEM. (The Imaging Technology Group of Dr. Bridget Carrageen, University of Illinois at Urbana-Champaign, has developed a system called Legion, for automatically acquiring images from a transmission electron microscope)QUANTIFOIL® with circular holes is used in cryo-electron tomographic reconstruction. The roundness of the holes is advantageous with respect to the formation of an ice layer of constant thickness. The hole size chosen depends on the m...

QUANTIFOIL® is a perforated support foil with pre-defined hole size, shape and arrangement. It has advantages in electron microscopy (EM) or low-energy electron point source (LEEPS) microscopy when compared with conventional holey film.

QUANTIFOIL® is offered with circular and square, orthogonal arranged holes. Films with different hole sizes and bar widths are available. Carbon is the standard material for the foil.

QUANTIFOIL® is a superior quality of holey carbon film, which facilitates the use of automation in TEM. (The Imaging Technology Group of Dr. Bridget Carrageen, University of Illinois at Urbana-Champaign, has developed a system called Legion, for automatically acquiring images from a transmission electron microscope)

QUANTIFOIL® with circular holes is used in cryo-electron tomographic reconstruction. The roundness of the holes is advantageous with respect to the formation of an ice layer of constant thickness. The hole size chosen depends on the magnification used, and on whether or not one wishes to include support film in the image. Assessment of the image quality is easier when foil is included in the picture, because the power spectrum of a foil is stronger than that of unsupported ice.

The surface properties of QUANTIFOIL® holey carbon support film, especially the wetting properties, may have to be adapted according to one’s particular requirements. Untreated aging QUANTIFOIL® tends to be hydrophobic. The foil can be made hydrophilic by glow discharging in residual air or by metal coating.

QUANTIFOIL® in low-energy electron point source (LEEPS) microscopy. QUANTIFOIL® with a regular pattern is required in order to be able to distinguish an object, which is spanned over a hole. An object cannot be discriminated from the support in the case of conventional holey support film. (H.W. Fink & C. Schonenberger, University of Basel, used QUANTIFOIL® for the measurement of electrical current through DNA molecules.)

The foil is ~12nm thick and mounted on copper or gold grids with either square or round holes of different sizes. If you require gold grids, please ask for a quote.

  • QUANTIFOIL® R 1.2/1.3. A foil with ~1.2µm circular holes and a spacing of ~2.5µm between the holes. This type is used at magnifications around 50.000x.
  • QUANTIFOIL® R 2/2. Holey films with 2µm circular holes are used at magnifications between 30.000x and 40.000x. R2/2 has 2µm holes and 4µm spaces.
  • QUANTIFOIL® R 2/4 may be preferred over R 2/2, when an increased tolerance with respect to the position of beam, and a larger beam diameter are desired, such as in the case of automated image acquisition. R2/4 has 2µm holes and 6µm spaces.
  • QUANTIFOIL® R 2/1 has more open area than R 2/2. It is used when focusing is carried out on the edge of a hole burnt in the ice in a neighbouring hole instead of on the foil adjacent to the hole. R2/1 has 2µm holes and 3µm spaces.
  • QUANTIFOIL® with square holes and relatively narrow bars can be used in EM to support a thin carbon film, which by itself is too fragile to span a grid square. Alternatively, this holey film can directly support an object that is larger than the holes.
  • QUANTIFOIL® S 7/2 constitutes an optimum between a maximum of open area on the one hand, and mechanical stability on the other hand. S7/2 has 7x7µm holes and 9µm spaces.
  • QUANTIFOIL® Multi A is a holey film, which consists of various pattern hole sizes, shapes and arrangements. In addition to round holes, the pattern includes oval-shaped ones, which appear round at high tilt angles (~70°). The diameters of the round holes are about 1, 1.4 and 2µm, and the bar widths range from 0.5 to 4µm. The oval holes in the foil have a dimension of 8 x 2µm and 4 x 1µm.

LONG LEAD TIME

Code Title Mesh size Grid material Pack size Availability Price Updated: 19-10-2021
EMSQ210CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/10 No ETA AU $189.00
EMSQ225CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/25 No ETA AU $356.00
EMSQ250CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/50 No ETA AU $668.00
EMSQ2100CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/100 No ETA AU $1,252.00
EMSQ210AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/10 No ETA AU $222.00
EMSQ225AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/25 No ETA AU $404.00
EMSQ250AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/50 No ETA AU $848.00
EMSQ2100AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/100 No ETA AU $1,532.00
EMSQ310CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/10 No ETA AU $189.00
EMSQ325CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/25 No ETA AU $356.00
EMSQ350CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/50 No ETA AU $668.00
EMSQ3100CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/100 No ETA AU $1,252.00
EMSQ310AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/10 No ETA AU $222.00
EMSQ325AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/25 No ETA AU $404.00
EMSQ350AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/50 No ETA AU $848.00
EMSQ3100AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/100 No ETA AU $1,532.00
EMSQ410CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/10 No ETA AU $189.00
EMSQ425CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/25 No ETA AU $356.00
EMSQ450CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/50 No ETA AU $668.00
EMSQ4100CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/100 No ETA AU $1,252.00
EMSQ410AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/10 No ETA AU $222.00
EMSQ425AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/25 No ETA AU $404.00
EMSQ450AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/50 No ETA AU $848.00
EMSQ4100AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/100 No ETA AU $1,532.00
Code Title Mesh size Grid material Pack size Availability Price
EMSQ210CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/10 No ETA AU $189.00
EMSQ225CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/25 No ETA AU $356.00
EMSQ250CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/50 No ETA AU $668.00
EMSQ2100CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Copper Pack/100 No ETA AU $1,252.00
EMSQ210AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/10 No ETA AU $222.00
EMSQ225AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/25 No ETA AU $404.00
EMSQ250AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/50 No ETA AU $848.00
EMSQ2100AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 200 mesh Gold Pack/100 No ETA AU $1,532.00
EMSQ310CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/10 No ETA AU $189.00
EMSQ325CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/25 No ETA AU $356.00
EMSQ350CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/50 No ETA AU $668.00
EMSQ3100CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Copper Pack/100 No ETA AU $1,252.00
EMSQ310AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/10 No ETA AU $222.00
EMSQ325AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/25 No ETA AU $404.00
EMSQ350AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/50 No ETA AU $848.00
EMSQ3100AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 300 mesh Gold Pack/100 No ETA AU $1,532.00
EMSQ410CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/10 No ETA AU $189.00
EMSQ425CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/25 No ETA AU $356.00
EMSQ450CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/50 No ETA AU $668.00
EMSQ4100CR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Copper Pack/100 No ETA AU $1,252.00
EMSQ410AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/10 No ETA AU $222.00
EMSQ425AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/25 No ETA AU $404.00
EMSQ450AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/50 No ETA AU $848.00
EMSQ4100AR1-2nm Quantifoil R grids, holey carbon film, 2.0um/1.0um, with 2nm ultrathin carbon 400 mesh Gold Pack/100 No ETA AU $1,532.00