You will be shown biomedical passages and your task is to the answer the provided question. Provide a concise and accurate response and do not include any additional text in the response other than the answer.

Question: What is the average diameter of intermediate filaments?

Context: Negative staining showed that supernatants from the centrifugation assays contained protofilaments, protofibrils and short particles (less than 300 nm), but pellets contained long filaments (greater than 1 micron) with an average diameter of 10 nm.
Ultrastructurally, rhabdoid cells showed paranuclear aggregates and whorls of intermediate filaments with a 9-10 nm diameter.
After removing IFs by calcination, electron microscopy revealed hollow silica nanotubes several micrometers long, with outer diameters of 35-55 nm and an average inner diameter of 10 nm (comparable to that of IFs)
Intermediate filaments are filaments 10 nm in diameter that make up an important component of the cytoskeleton in most metazoan taxa.
Neurofilaments (NFs) are essential cytoskeletal filaments that impart mechanical integrity to nerve cells. They are assembled from three distinct molecular mass proteins that bind to each other to form a 10-nm-diameter filamentous rod with sidearm extensions.
Scanning tunneling microscope (STM) and transmission electron microscope (TEM) micrographs showed that acidic keratins and basic keratins can assemble into dimers and further into 10 nm filamentsin vitro.
Intermediate in diameter between microtubules and microfilaments, IFs constitute the third cytoskeletal filament system of metazoan cells.
Just above the bulb, the filaments are characterized by a diameter of 100 Angstroms and a low-density core.
Further, using cryo-transmission electron microscopy on native, fully hydrated, vitreous epidermis we show that the subfilametous keratin electron density pattern consists, both in corneocytes and in viable keratinocytes, of one axial subfilament surrounded by an undetermined number of peripheral subfilaments forming filaments with a diameter of approximately 8 nm.
10 nanometers, or 10 nm