1.   A new variant of fullerene molecules is the carbon nanotube, a microscopic tubular fiber consisting of a rolled-up sheet of carbon atoms.

2.   Deaths from the microscopic fibers came in waves.

3.   During cross examination, Ms. Lependorf adopted an interrogative tone as she asked the expert how he had made the microscopic fiber comparison that led to his conclusion.

4.   The health effect depends on the level of exposure to its microscopic fibers.

5.   The microscopic asbestos fibers are so small they hang suspended in the air for extended periods.

6.   Vento has mesothelioma, a rare form of lung cancer that is almost always associated with the inhalation of microscopic asbestos fibers.