ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Chemistry  (2)
  • 1960-1964  (2)
Collection
Keywords
Publisher
Years
Year
  • 1
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Eine Reihe synthetischer Polyglukose-carboxylderivate mit verschiedenem Carboxylgehalt wurde zur Hemmung der Ribonuklease-entpolymerisierenden Wirkung an Ribonukleinsäure, die nach der KUNITZ-Probe gemessen wurde, verwandt. Die enzymhemmende Wirkung nahm mit der Ladungsdichte der Polyglukose-carboxylderivate stark zu.Durch diese und ähnliche Experimente ergibt sich, daß COULOMB-Anziehungskräfte beim Zusammenführen von Enzym und Substrat eine wichtige Rolle spielen.
    Notes: A series of synthetic polyglucose carboxyl derivatives with different carboxyl content has been used to inhibit ribonuclease depolymerizing activity on ribonucleic acid as measured by the KUNITZ assay. The enzyme inhibitory activity increased greatly with the charge density of the polyglucose carboxyl derivatives.From this and similar experiments it is concluded, that COULOMBIC attracting forces have an important role in bringing the enzyme and the substrate together.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 1 (1963), S. 3511-3517 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A general procedure is presented for the preparation of diethylaminohydroxylpropyl ethers of polysaccharides. This involves reaction between various ratios of 1-diethylamino-2,3-epoxypropane and the polysaccharide (amylose, amylopectin, dextran, and a chemically synthesized polygalactose) and concentrated aqueous solution of sodium carbonate. These ratios control the degree of substitution, and give as high as 1.4 cationic groups per monosaccharide unit in the case of certain polysaccharides. The cationic polysaccharides possess high hemagglutinating activity which is proportional to the degree of substitution. Other biological applications are reviewed.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...