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    Author(s): Umesh P. AgarwalRichard S. ReinerSally A. Ralph
    Date: 2006
    Source: 2006 TAPPI International Conference on Nanotechnology : April 26-28, 2006, Atlanta, Georgia. Atlanta, GA : TAPPI Press, c2006: [11] pages.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (837 KB)

    Description

    Although there are numerous techniques available to study lignin in its various states, they all have limitations and to extract most amount of information, a number of analytical techniques have to be jointly used. We have recently started applying a new approach to lignin analysis - namely using nano- and micro-particles of silver for study of native and residual lignins by surface enhanced Raman spectroscopy (SERS). Silver particles were used for their unique electronic and optical properties (in this case, localized surface plasmon resonance). The SERS technique is highly sensitive and extremely selective. These attributes allow detection of small amount of lignin in presence of other constituents in a sample. For example, in wood and pulp samples, no signal from carbohydrates was detected and lignin was analyzed directly. Additionally, isolated milled- wood lignin was investigated with high sensitivity. This nano- and micro- particle based sensing could make a significant contribution to investigating lignin in difficult-to-analyze samples.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Agarwal, Umesh P.; Reiner, Richard S.; Ralph, Sally A. 2006. Using nano- and micro-particles of silver in lignin analysis. 2006 TAPPI International Conference on Nanotechnology : April 26-28, 2006, Atlanta, Georgia. Atlanta, GA : TAPPI Press, c2006: [11] pages.

    Keywords

    Silver, nanotechnology, forest products industry, technological innovations, raman spectroscopy, spectrum analysis, lignin analysis, surface enhanced Raman spectroscopy, SERS

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https://www.fs.usda.gov/treesearch/pubs/24922