They consist of clusters of zinc-oxide crystals, which are easily precipitated from a solution of zinc acetate in diethylene glycol (better known as antifreeze) at the right temperature.

ECONOMIST: Microlasers

State and federal health organizations are investigating Main Street Family Pharmacy, LLC, in Newbern, Tennessee, and its preservative-free methylprednisolone acetate, or MPA, a steroid product used for a range of conditions.

CNN: SHARE THIS

Melthyprednisone acetate is an injectable form of a popular steroid medication and is used to treat inflammation throughout the body.

CNN: SHARE THIS

Patients contracted fungal meningitis -- which results in inflammation of the membranes covering the brain and spinal cord -- after their spines were injected with a contaminated, preservative-free steroid called methylprednisolone acetate, health officials have said.

CNN: SHARE THIS

Accordingly, Dr Lin and his colleagues tried to build up covalent bonds between the layers of a water-repellent, or hydrophobic, material called cellulose acetate butyrate, which is used to make water-resistant fabrics.

ECONOMIST: Monitor: Encouraging hydrophobia | The