Ionizing radiation disrupts cellular activities by chemically damaging protein and deoxyribonucleic acid (dna) molecules. one of the abundantly formed chemical modifications of dna is thymidine diol (td), formed by the addition of hydroxyl radicals to thymidine. the objective of this phase i… More

One of the major challenges in the production of therapeutically useful proteins, including products of recombinant dna technology, is rapid and cost-effective purification of the proteins. high-performance immunoaffinity chromatography is a powerful new technique for protein purification at… More

The abandoned berkeley pit copper mine site in butte, montana, is a major component of the butte silverbow creek superfund site. it consists of several billion gallons of acid (ph 2-3) mine drainage that is contaminated with toxic levels of a variety of heavy metals, arsenic, and sulfuric acid. the… More

Removal of toxic metals from wastewater streams has become a problem of increasing national importance, as a result of increasing concern for our environment, and increasingly stringent waste disposal regulations. chromatochem, inc., has developed an economical and effective new technology for the… More

Immobilized metal affinity chromatography (imac) has subtantial utility as a protein purification tool for both analytical and preparative applications. there is a strong market need for an imac support suitable for high performance liquid chromatography (hplc). researchers are developing an hplc… More