1.   His invention, put into practice by Lynx Therapeutics of Hayward, Calif., is based on anchoring DNA fragments to microscopic beads by combinatorial chemistry.

2.   Its proprietary techniques let researchers synthesize vast numbers of different compounds on tiny chips of silica and microscopic beads and then screen them for their medical potential.

3.   The DNA is attached to a microscopic plastic bead, smaller in diameter than the smallest bacterium.

4.   The gun uses helium gas to fire a spray of microscopic gold beads that have been coated with DNA, the material of which genes are made.

5.   The sample passes through a column filled with microscopic beads that have been coated with avidin.

6.   Then the material would be coated with millions of microscopic beads.

7.   They attach antibodies and microscopic magnetic beads to the actin molecules.

8.   They shot microscopic gold beads coated with this gene into the skin of mice.