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Photonics Examines Pharmaceuticals at Environmental Interfaces

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Anne L. Fischer

With the increased use of antibiotics, hormones, herbicides and pesticides in agriculture, the environmental effects of these substances have become a concern. The discharge of veterinary antibiotics can lead to drug resistance in target microbes, and herbicides, pesticides and hormones could affect humans, resulting in premature puberty, decreased fertility, neurological disease and other conditions. Optical techniques offer information about the mobility of an antibiotic commonly fed to cattle and present in agricultural runoff. Courtesy of Franz M. Geiger, Northwestern University....Read full article

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    Published: December 2005
    Glossary
    infrared
    Infrared (IR) refers to the region of the electromagnetic spectrum with wavelengths longer than those of visible light, but shorter than those of microwaves. The infrared spectrum spans wavelengths roughly between 700 nanometers (nm) and 1 millimeter (mm). It is divided into three main subcategories: Near-infrared (NIR): Wavelengths from approximately 700 nm to 1.4 micrometers (µm). Near-infrared light is often used in telecommunications, as well as in various imaging and sensing...
    Basic SciencechemicalsinfraredResearch & Technologysilica-rich soilsspectroscopic signaturesTech Pulse

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