期刊
CARBOHYDRATE POLYMERS
卷 69, 期 4, 页码 799-804出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2007.01.023
关键词
cellulose fibres; fibre bonding; fluorescence resonance energy transfer; fluorescence microscopy
Future developments in cellulosic materials are predicated by the need to understand the fundamental interactions that occur at cellulose fibre interfaces. These interfaces strongly influence the material properties of fibre networks and fibre reinforced composites. This study takes advantage of fluorescence resonance energy transfer (FRET) and fluorescence microscopy to image cellulose interfaces. Steady-state epi-fluorescence microscopy suggests that energy transfer from coumarin dyed fibres to fluorescein dyed fibres is occurring at the fibre-fibre interface. The FRET response for natural spruce fibre interfaces is distinctly different from that observed in synthetic viscose fibres. This approach constitutes a novel methodology for the characterization of soft material interfaces on the molecular scale, and represents a major opportunity for advancing the understanding of fibrous network structures. (c) 2007 Elsevier Ltd. All rights reserved.
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