| Building a scale sensitive enough to weigh a virus (875 words) |
 | An attogram is one-thousandth of a femtogram, which is one-thousandth of a picogram, which is one-thousandth of a nanogram, which is a billionth of a gram. |
| For the latest experiments, the sensitivity of the measurement was increased by reducing the size of the NEMS cantilevers and enclosing them in a vacuum. |
| The experiments that detected masses in the femtogram range were described in the Nov./Dec. 2001 issue of the Journal of Vacuum Science and Technology by Ilic, Cornell graduate student David Czaplewski, research associate Maxim Zalalutdinov, Craighead, Neuzil, Cornell graduate student Christine Capagnolo and Carl Batt, Liberty Hyde Bailey Professor of Food Science at Cornell. |
Feeds |
Contact