Multiple point adsorption in a heteropolymer gel and the Tanaka approach to imprinting

Experiment and theory

Kenji Ito, Jeffrey Chuang, Carmen Alvarez-Lorenzo, Tsuyoshi Watanabe, Nozomi Ando, Alexander Yu Grosberg

    Research output: Contribution to journalArticle

    Abstract

    Heteropolymer gels can be engineered to release specific molecules into or absorb molecules from a surrounding solution. This remarkable ability is the basis for developing gel applications in extensive areas such as drug delivery, waste cleanup, and catalysis. Furthermore, gels are a model system for proteins, many of whose properties they can be created to mimic. A key aspect of gels is their volume phase transition, which provides a macroscopic mechanism for effecting microscopic changes. The phase transition allows one to control the gel's affinity for target molecules through tiny changes in the solution temperature, salt concentration, pH, or the like. We summarize recent experiments that systematically characterize the gel affinity as a function of adsorbing monomer concentration, solution salt concentration, and cross-linker concentration, on both sides of the phase transition. We provide a physical theory that explains the results and discuss enhancements via imprinting.

    Original languageEnglish (US)
    Pages (from-to)1489-1515
    Number of pages27
    JournalProgress in Polymer Science (Oxford)
    Volume28
    Issue number10
    DOIs
    StatePublished - Oct 2003

    Fingerprint

    Gels
    gels
    Adsorption
    adsorption
    Phase transitions
    Experiments
    Molecules
    affinity
    Salts
    salts
    molecules
    Drug delivery
    Catalysis
    catalysis
    delivery
    drugs
    monomers
    Monomers
    proteins
    Proteins

    Keywords

    • Conformational memory
    • Electrostatic interaction
    • Isopropylacrylamide
    • Langmuir adsorption
    • Molecular imprinting
    • Polymer gel
    • Statistical mechanics
    • Volume phase transition

    ASJC Scopus subject areas

    • Polymers and Plastics

    Cite this

    Multiple point adsorption in a heteropolymer gel and the Tanaka approach to imprinting : Experiment and theory. / Ito, Kenji; Chuang, Jeffrey; Alvarez-Lorenzo, Carmen; Watanabe, Tsuyoshi; Ando, Nozomi; Grosberg, Alexander Yu.

    In: Progress in Polymer Science (Oxford), Vol. 28, No. 10, 10.2003, p. 1489-1515.

    Research output: Contribution to journalArticle

    Ito, Kenji ; Chuang, Jeffrey ; Alvarez-Lorenzo, Carmen ; Watanabe, Tsuyoshi ; Ando, Nozomi ; Grosberg, Alexander Yu. / Multiple point adsorption in a heteropolymer gel and the Tanaka approach to imprinting : Experiment and theory. In: Progress in Polymer Science (Oxford). 2003 ; Vol. 28, No. 10. pp. 1489-1515.
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