New chiral derivatizing agents have been prepared through a simple, short-step synthesis. The absolute configuration of α-chiral carboxylic acids can be assigned on the basis of the NMR chemical shift difference between diastereomeric esters. Because of the modular structures of the agents, the anisotropic effect could be easily manipulated to afford large chemical shift differences even in pol...

Recent events including the Sept. 11, 2001 attacks in New York, Washington, DC, and Pennsylvania have illustrated the vulnerability of the United States to terrorist activity. Many experts agree that a chemical or biological event is likely to occur within the continental United States during our lifetime. The anesthesiologist, as well as, emergency medicine provider and critical care specialis...

The present treatments for HIV transfection include chemical agents and gene therapies. Although many chemical drugs, peptides and genes have been developed for HIV inhibition, a variety of non-ignorable drawbacks limited the efficiency of these materials. In this review, we discuss the application of dendrimers as both therapeutic agents and non-viral vectors of chemical agents and genes for H...

2014 marks the centennial of the outbreak of World War I—the first war that saw the large-scale use of chemical weapons. Although poisons have been used in warfare for centuries, it was rapid advances in science and engineering and the rise of the modern chemical industry that made the mass production of toxic chemicals possible. The horrors of gas warfare led to the signing of the Geneva Proto...

Recent events have emphasized the threat from chemical and biological warfare agents. Within the efforts to counter this threat, the biocatalytic destruction and sensing of chemical and biological weapons has become an important area of focus. The specificity and high catalytic rates of biological catalysts make them appropriate for decommissioning nerve agent stockpiles, counteracting nerve ag...

The two major threat classes of chemical weapons are mustard gas and the nerve agents, and this has not changed in over 50 years. Both types are commonly called gases, but they are actually liquids that are not remarkably volatile. These agents were designed specifically to harm people by any route of exposure and to be effective at low doses. Mustard gas was used in World War I, and the nerve ...

OBJECTIVE This article highlights the mental health consequences of a domestic terrorist incident involving chemical or biological weapons. METHOD The author reviews the literature on the neuropsychiatric effects of selected chemical and biological weapon agents, on the psychological sequelae of mass disasters, and on approaches to crisis intervention. RESULTS Disturbances of behavior, affe...

A novel method combined theoretical and experimental study for environmental friendly silver electroplating was introduced. Quantum chemical calculations and molecular dynamic (MD) simulations were employed for predicting the behaviour and function of the complexing agents. Electronic properties, orbital information, and single point energies of the 5,5-dimethylhydantoin (DMH), nicotinic acid (...