nitrogen mustard
nitrogen mustard any of various poisonous compounds originally developed for military use (see poison gas ). Like mustard gas and lewisite, it is a vesicant (blistering agent). In the form of its crystalline hydrochloride it is used as a drug in the treatment of Hodgkin's disease , non-Hodgkin's lymphomas , and brain tumors. Nitrogen mustards cause mutations in the genetic material of cells, thereby disrupting mitosis, or cell division. Cells vary in their susceptibility to nitrogen mustards, with rapidly proliferating tumor and cancer cells most sensitive; bone marrow, which produces red blood cells, is also sensitive, and depression of red blood cell production is a frequent side effect of nitrogen mustard therapy. The nitrogen mustards also suppress the immune response (see immunity ).
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STROKING MOLECULES.(friction research and experiments)
Magazine article from: Highlights for Children; 2/1/2000; ; 700+ words
; ...molecules of soap. These molecules also have special...like those of soap molecules. One end of each molecule is attracted to water...water. When these molecules are placed in water...the surface. Each molecule naturally takes a...
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Molecule impossible: Jonathan Goodman investigates which is the simplest alkane that cannot be made.
Magazine article from: Chemistry and Industry; 3/21/2005; ; 700+ words
; ...harder as the molecule size increases...superficially simple molecules are inaccessible...made is a small molecule Nobody knows how many different molecules it is possible...discussion to small molecules say, any molecule that weighs less...
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MOLECULES SPONTANEOUSLY FORM HONEYCOMB NETWORK FEATURING PORES OF UNPRECEDENTED SIZE
News Wire article from: US Fed News Service, Including US State News; 8/17/2006; 700+ words
; ...creates complex patterns: the assembly of molecules with no guidance from an outside source...where surface patterning at the scale of molecules is desired. Spreading anthraquinone...honeycomb network comprised of anthraquinone molecules. The finding, reported in the Aug...
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Water Molecules Star in Action Movies.
News Wire article from: Ascribe Higher Education News Service; 9/13/2002; 700+ words
; ...moved. "Isolated water molecules moved by hopping from...collided with another water molecule they began to form clusters...speed with which the molecules moved increased by four...clusters reached five water molecules in size, however...addition of a sixth water molecule created highly ...
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Molecules wrestle for supremacy in creation of superstructures.
Newspaper article from: NewsRx Health; 8/30/2009; 700+ words
; ...mirror image. Such molecules are common - proteins...differences in the way a molecule functions - for example...mirror image form. Molecules can also assemble...and right-handed molecules, one mirror-form of a molecule could take supremacy...
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Synthetic molecules emulate enzyme behavior for the first time.
Newspaper article from: NewsRx Health; 7/28/2008; 700+ words
; ...the lab and coaxed the molecules to change shape. The...periphery of the catalyst molecule in just the right way...confirmed the shape of the molecules at each step using techniques...most exciting: the molecule does not maintain only...reactions to work, molecules must be able to fit...
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Unusual Molecule Helps Reduce Greenhouse Gas, University of Kansas Researcher Finds.
News Wire article from: Ascribe Higher Education News Service; 9/10/2004; 700+ words
; ...describe the structure of an unusual molecule that is key to how those microbes work...environmental engineering, says that the molecule is remarkable for more than its crucial...bacterial enzymes break down methane. The molecule also has antibiotic properties and even...
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Designer Molecules Link Together To Make Nanotubes A Snap.
Newspaper article from: Medical Devices & Surgical Technology Week; 5/13/2001; 700+ words
; ...result is a single molecule that contains the traits...characteristics of its two parent molecules, the new molecule is somewhat "confused...process, allowing the molecules to form rings and tubes...intervention. "The way the molecule is designed, the only...
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Single Molecule Detection and Manipulation.
Magazine article from: Environmental Health Perspectives; 4/1/2001; 700+ words
; ...an individual molecule, and to explore...among different molecules within a population...heterogeneity among molecules, and to determine...action. Single molecule studies are...any biological molecule is a target for study. Typical molecules are members...
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Adhesion molecules in patients with coronary artery disease and moderate-to-severe obstructive sleep apnea *. (clinical investigations).
Magazine article from: Chest; 5/1/2002; ; 700+ words
; ...circulating adhesion molecules in patients with OSA...intercellular adhesion molecule (ICAM)-1, vascular...influence of adhesion molecules on cardiovascular outcome...words: cell adhesion molecules; coronary artery disease...intercellular adhesion molecule; Ln= logarithmic transformation...
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Molecules
Book article from: Chemistry: Foundations and Applications
Molecules A molecule is the smallest entity...of the chemistry of a molecule. While molecules may be monoatomic...or more atoms (some molecules may be a collection...atoms). A diatomic molecule may be homonuclear...
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molecule
Book article from: The Columbia Encyclopedia, Sixth Edition
...arrangement of atoms in the molecule. Molecules differ in size and...cases two or more molecules will combine to form a single larger molecule, or a large molecule will be broken up into several smaller molecules. Molecules can assume...
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Molecule
Encyclopedia entry from: UXL Encyclopedia of Science
Molecule A molecule is a particle consisting...ways of representing molecules. One method is called...atoms included in the molecule and the electron pairs...covalent bond is a molecule. Polar and nonpolar molecules Consider the situation...
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interstellar molecule
Book article from: A Dictionary of Astronomy
...interstellar molecule Any molecule that occurs naturally...More than 140 such molecules have already been...wavelengths. The simplest molecule, H 2 , is also...abundant. Other known molecules include simple groupings...hydrogen. The largest molecule yet identified is...More ...
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carrier molecule
Book article from: A Dictionary of Biology
carrier molecule 1. A molecule that plays a role in transporting...transport chain . Carrier molecules are usually proteins bound...2. A lipid-soluble molecule that can bind to lipid-insoluble molecules and transport them across...
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