Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (380 KB)

Title: Near-Ir surface-enhanced Raman spectrum of lignin

Author: Agarwal, Umesh P.; Reiner, Richard S.;

Date: 2009

Source: Journal of Raman spectroscopy. Vol. 40, no. 11 (Nov. 2009): pages 1527-1534.

Publication Series: Miscellaneous Publication

Description: Compacted powders of commercially available nano- and microparticles of silver were used to successfully induce the surface enhanced Raman scattering (SERS) effect in spruce milled-wood lignin (MWL). For the two silver particle sizes used in this investigation, the spectra were mostly similar. Some general characteristics of the lignin SERS spectrum are described. The SERS technique was found to be sensitive for detecting lignin. Significant spectral changes were present between the SERS and normal Raman spectra of MWL. The SERS spectrum was assigned on the basis of literature-reported vibrational assignments of lignin and its models. Based on significant changes in Raman features, we propose that the lignin is strongly adsorbed on silver. To determine whether SERS of lignin can be obtained directly from wood without its isolation, Wiley-milled spruce wood (WMW) adsorbed on silver was studied. The results indicated that not only the surface-enhancement effect was successfully induced in the WMW, but that its spectrum was similar to MWL SERS. Moreover, for WMW, no signals from the carbohydrate components were observed, and therefore, lignin was detected selectively. This nano- and microparticle-based molecularly specific method is expected to make a significant contribution in identifying and investigating lignin in various lignin-containing materials.

Keywords: Surface-enhanced Raman scattering (SERS), lignin, cellulose, wood, silver, nano, micro, benzoic acid, muconic acid, Raman spectroscopy, lignin analysis, spectrum analysis, wood chemistry, nanotechnology, black spruce, carbohydrates, nanoparticles, surface enhanced Raman spectroscopy, particle sizes

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.



Agarwal, Umesh P.; Reiner, Richard S. 2009. Near-Ir surface-enhanced Raman spectrum of lignin. Journal of Raman spectroscopy. Vol. 40, no. 11 (Nov. 2009): pages 1527-1534.


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.