News tagged with polysaccharide
Polysaccharides are long carbohydrate molecules, of repeated monomer units joined together by glycosidic bonds. They range in structure from linear to highly branched. Polysaccharides are often quite heterogeneous, containing slight modifications of the repeating unit. Depending on the structure, these macromolecules can have distinct properties from their monosaccharide building blocks. They may be amorphous or even insoluble in water.
When all the monosaccharides in a polysaccharide are the same type, the polysaccharide is called a homopolysaccharide or homoglycan, but when more than one type of monosaccharide is present they are called heteropolysaccharides or heteroglycans.
Examples include storage polysaccharides such as starch and glycogen, and structural polysaccharides such as cellulose and chitin.
Polysaccharides have a general formula of Cx(H2O)y where x is usually a large number between 200 and 2500. Considering that the repeating units in the polymer backbone are often six-carbon monosaccharides, the general formula can also be represented as (C6H10O5)n where 40≤n≤3000.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
A first-ever vaccine created by University of Guelph researchers for gut bacteria common in autistic children may also help control some autism symptoms. The groundbreaking study by Brittany Pequegnat and Guelph chemistry ...
Autism spectrum disorders Apr 24, 2013 | 3.7 / 5 (6) | 1 |
A natural, nontoxic product called genistein-combined polysaccharide, or GCP, which is commercially available in health stores, could help lengthen the life expectancy of certain prostate cancer patients, UC Davis researchers ...
Cancer Feb 20, 2013 | 5 / 5 (1) | 0 |
Micro-needle array: New method for delivering the drug into the body just by attaching it onto the skin
Fujifilm Corporation has developed the micro-needle array which is a new drug administration method that has gained attention for delivering the drug into the body just by attaching it onto the skin.
Medical research Nov 14, 2012 | 5 / 5 (1) | 0
(Medical Xpress) -- Researchers at the University of Liverpool are examining the evolution of Pseudomonas aeruginosa over time in the lungs of ten people with cystic fibrosis to understand why it persists ...
Medical research Mar 06, 2012 | 5 / 5 (3) | 0 |
Genetics has provided surprising insights into why vaccines used in both the UK and US to combat serious childhood infections can eventually fail. The study, published today in Nature Genetics, which investigates how bacter ...
Genetics Jan 29, 2012 | not rated yet | 0 |