Holey Carbon Film with a Continuous Layer of Ultrathin Formvar Film
The continuous ultrathin film on holey film allows for the thinnest support film that still has adequate strength to withstand specimen preparation The film (less than 3 nm thick) lies across a carbon lacey film supported by a 200, 300, or 400 mesh grid. The size of the holes in the holey film differ widely from batch to batch but are generally in the range of ¼ µm to 5 µm, which gives the equivalent support of at least 6000 mesh grid. Specimen material lying over the covered holes can be imaged in the TEM with practically no interference from the carbon film supporting it. This product is ideal for looking at nanotubes, virus particles and other small particulate material.
Continuous Layer Thickness: Carbon — less than 3-4 nm.