New measurement of the rate coefficient for the reaction of OH with methane
- L-tryptophan recall broadened. // FDA Consumer;Jun90, Vol. 24 Issue 5, p3
Reports that the Food and Drug Administration has expanded its recall of the dietary supplement L-tryptophan to include even small doses because of continuing reports linking the amino acid to a sometimes fatal blood disorder, eosinophilia-myalgiasyndrome (EMS).
- Why do you want to know? // Mother Jones;Mar/Apr92, Vol. 17 Issue 2, p18
Comments on the Chemical Manufacturers Association's (CMA) publicity campaign called `Responsible Care.' The claim that they wanted the public to know what their local chemical company was making; The unsatisfactory results of phone calls made to DuPont, Dow Chemical and General Electric; The...
- Six-bonded silicon surprises the chemists. Emsley, J. // New Scientist;1/18/92, Vol. 133 Issue 1804, p18
Reports that chemists in the United States have discovered a cheap and easy way of making silicon compounds in which the silicon is bonded to five or six oxygen atoms. What the new materials are used for; How chemists currently break through silica's barrier of chemical inactivity; What...
- Porphyrins provide the key to `designer enzymes.' Bradley, D. // New Scientist;2/1/92, Vol. 133 Issue 1806, p23
Describes the supermolecules that chemists in Britain have designed and built. Made from compounds common in nature; The use of the technique of template synthesis; The scientists' aim.
- Computer chemistry--the shape of things to come. Emsley, J. // New Scientist;2/22/92, Vol. 133 Issue 1809, p19
Reveals that chemists at the University of Erlangen in Germany have made the first ever discovery of a chemical reaction by predicting it with a computer. They designed a computer program that searched for new ways of making butadiene. Two new reactions previously unknown; Details of both.
- Tunable polymer could make coloured light-emitting displays. Bradley, D. // New Scientist;3/21/92, Vol. 133 Issue 1813, p19
Reports on a method developed by British chemists and physicists of `tuning' the color and of creating a pattern in polymer film. Description of the process; It should eventually be possible to use these cheap chemicals to make multicolored displays which take very little power to function; What...
- Molecular footprints in the sand. Emsley, J. // New Scientist;4/4/92, Vol. 134 Issue 1815, p18
States that according to Japanese chemists, impressions left by molecules in the surface of silica gel may act as a catalyst for other similar molecules but not their mirror images. Kensaku Morihara and colleagues at Nara Women's University in Japan used derivative of amino acid alanine;...
- Smithsonian horizons. Adams, Robert McC. // Smithsonian;Jan93, Vol. 23 Issue 10, p10
Speaks to the growing use of synthetic polymers and the problems it has created for museums and many items in their collections. Explanation of natural polymers; Synthetic polymers products of a relatively young chemical industry; Synthetics viewed as children of the petroleum industry;...
- `Hairnets' hold proteins together. // USA Today Magazine;Jun92, Vol. 120 Issue 2565, p10
Looks at a new way of treating proteins used in industry and medicine. How Ohio State University professor Matthew Callstrom and his colleagues have developed a `molecular hairnet' to keep fragile proteins from falling apart under high temperatures and in harsh solvents; Potential applications...
- Destroying industrial sludge. // USA Today Magazine;Jun92, Vol. 120 Issue 2565, p12
Provides information on the ChemChar waste gasification process, co-invented by Stanley Manahan, a University of Missouri-Columbia chemist. How the method works to clear up hazardous chemicals; Effectiveness and efficiency; Potential applications.