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    Mechanical Investigations on Agar Gels Using Atomic Force Microscopy: Effect of Deuteration.

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    Publication date
    25/08/2011
    Author
    Grant, Colin A.
    Twigg, Peter C.
    Savage, M.D.
    Woon, W.H.
    Greig, D.
    Keyword
    Atomic force microscopy
    Gel
    Deuteration
    Agar gel
    Mechanical properties
    Biphasic scaffold
    REF 2014
    Peer-Reviewed
    Yes
    
    Metadata
    Show full item record
    Abstract
    The isotopic effect of exchanging deuterium with hydrogen on the mechanical and surface properties of agar gel is examined. The elastic modulus of the D2O gels obtained by AFM nanoindentation is significantly higher (factor of 1.5¿2) than the modulus found in H2O agar gels. Furthermore, the modulus is independent of loading rate. Surface imaging reveals that the surface roughness gets progressively smaller with increasing agar concentration. All these data suggest that the isotopic replacement of deuterium enhances the mechanical properties of the agar gel, with significant advantages in its use as a biphasic scaffold.
    URI
    http://hdl.handle.net/10454/5494
    Version
    published version paper
    Citation
    Grant, C. A., Twigg, P. C., Savage, M. D., Woon, W.H. and Greig, D. (2012). Mechanical Investigations on Agar Gels Using Atomic Force Microscopy: Effect of Deuteration. Macromolecular Materials and Engineering. Vol. 297, No. 3, p 214-218.
    Link to publisher’s version
    http://onlinelibrary.wiley.com/doi/10.1002/mame.201100164/abstract;jsessionid=0F97D7227E55C6942D79014409341393.d03t02
    Type
    Article
    Collections
    Engineering and Digital Technology Publications

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