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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 18 (1995), S. 210-215 
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: This paper describes an original system for automated solid-phase peptide synthesis (SPPS) that was developed in our laboratories. The synthesizer is equipped with separate activator and batch reactors, and was designed to operate under either manual or computer control. Two metering pumps, which constitute the core of the entire apparatus, provide for the delivery and transfer of reagents and solvents in the appropriate quantities and in the correct sequence, and permit simultaneous condensation and activation operations that result in considerable time saving. Various applications to the synthesis of biologically important peptides, utilizing the most widely used strategies in SPPS, are presented as examples of this improved technology.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Journal of Chemical Technology AND Biotechnology 71 (1998), S. 77-83 
    ISSN: 0268-2575
    Keywords: automation ; biopolymers synthesis ; liquid-phase ; solid-phase ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: The liquid-phase synthesis of biopolymers is an alternative to the solid-phase methodologies that are widely applied in spite of limitations in the use of heterogeneous media. The advantages of the liquid-phase approach are due to the fact that the support is alternatively soluble in the solvents used for the chemical reactions and insoluble in the mixtures used for the purification steps. Thus, the advantages of both ‘solution’ and ‘solid-phase’ methodologies can be properly integrated. At present the liquid-phase procedure, unlike solid-phase methods that have been highly automated, can be carried out only manually due to technical difficulties imposed by the cyclic repetition of dissolution and precipitation steps. The original apparatus proposed here performs, for the first time, all the steps required by the liquid-phase approach in a fully automatic way controlled by a user-friendly dedicated software. The automated liquid-phase methodology has been tested by synthesizing some sample oligonucleotides and the preliminary results are discussed in the present paper. © 1998 SCI.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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