Other compounds made by bacteria could be involved as well.
Most antibiotics came from compounds made by micro-organisms in the soil.
In this case, organic means chemical compounds made from carbon bonded to hydrogen.
Nocera had successfully used compounds made of iridium and rhodium, but both metals are rare and expensive.
"But the rate of loss could also be affected by compounds made by bacteria, and that's what we're targeting.
Chemistry of industrial polymers, structure and composition of chemical compounds made up of long, chainlike molecules.
As part of her training, she took a class on a massage technique called "raindrop therapy," which incorporates essential oils — aromatic compounds made from plant material.
Such compounds, made of carbon and chlorine, are of the type that, in some cases, indicate microbes in the soil.
Still other women are trying new, low-dose versions of Prempro and Premarin or so-called bioidentical hormones -- compounds made with at least some natural products in small, boutique labs.
Compounds made from the 13C-enriched material are needed for certain medical tests, such as one that detects the ulcer-causing bacterium Helicobacter pylori.
Together these materials are known as polymers, because their molecules are high-molecular-weight compounds made up of repeated structural units that have combined chemically.
