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Erica L. Gjersing

Phone (505) 667-5846


  • Biosciences
  • Metabolomics
  • Cellulose breakdown
  • Biomaterials
  • Chemical Science
  • Lignin and cellulose breakdown
  • Materials
  • Polymer characterization techniques
  • Polymer science
  • Magnetic resonance
  • Soft and biological materials


  • Solid state Nuclear Magnetic Resonance (NMR) Spectroscopy
  • High-throughput characterization techniques and data processing
  • Amorphous materials characterization
  • Biofuels and bioproducts characteriztion


Ph.D., Chemical Engineering and Materials Science (2010), University of California, Davis, CA. 

M.S., Chemical and Biological Engineering (2004), Montana State University, Bozeman, MT. 

B.S., Chemical Engineering  (2002), Montana State University, Bozeman, MT.


LANL Positions

10/2017 - present: Applied Polymers Team Lead, MST-7, Materials Science and Technology Division



  • NREL Key Contributor Award, 2014, 2015, 2016
  • NSF East Asia and Pacific islands Summer Institute (EAPSI) Fellow at Tohoku University Sendai, Japan.  Summer 2008
  • GAANN Fellow, Chemical Engineering and Materials Science Dept., University of California, Davis.  Fall 2006
  • LLNL Chemistry and Materials Science Spot Award for Outstanding Contributions towards Safety.  Spring 2005
  • American Society for Microbiology (ASM) Student Travel Grant to attend ASM Conference: Biofilms 2003, Vancouver, Canada.  Fall 2003
  • Certified Engineer Intern, State of Montana Department of Labor and Industry Certificate Number: 15326.
  • Harcharik Environmental Engineering Scholarship, Department of Chemical Engineering, Montana State University. Fall ’01-Spring ’02


X.Z. Meng, Y.Q. Pu, C.G. Yoo, M. Li, G. Bali, D.Y. Park, E. Gjersing, M.F. Davis, W. Muchero, G.A. Tuskan, T.J. Tschaplinski, A.J. Ragauskas. “An in-depth understanding of biomass recalcitrance using natural poplar variants as the feedstock.  Chem Sus Chem. 10, 139-150 (2017)

W. Xiong, T. Lee, S. Rommelfanger, E. Gjersing, M. Cano, P. Maness, M. Ghirardi, and J. Yu.  “The phosphoketolase pathway is a major metabolic route in the central carbon metabolism of cyanobacterium Synechocystis sp. PCC 6803.”  Nature Plants.  15187 (2016)

T.S. Magala, E. Christensen, D. Christison, R. Mohler, E. Gjersing, and R. McCormick.  “Renewable and synthetic diesel Fuels: composition and properties.” Energy and Fuels, 27, 237-246 (2013)

T.G. Edwards, S. Sen, and E.L. Gjersing.  “A combined 77Se NMR and Raman spectroscopic study of the structure of GexSe1-x glasses: towards a self consistent model.”  Journal of Non-Crystalline Solids, 358, 609-614 (2012).

T.G. Edwards, E.L. Gjersing, S. Sen, S.C. Currie, and B.G. Aitken.  “125Te NMR chemical shifts and tellurium coordination environments in crystals and glasses in the Ge-As-Sb-Te system.”  Journal of Non-Crystalline Solids, 357, 3036-3041 (2011).

S.R. Decker, R.W. Sykes, G.B. Turner, J.S. Lupoi, C. Doeppke, M.P. Tucker , L.A. Schuster, K. Mazza, M. Himmel, M.F. Davis, E. Gjersing.  “High-throughput screening of recalcitrance variations in lignocellulosic biomass: quantitation of monosaccharide release, total lignin, and lignin monomer content.”  Journal of Visualized Experiments.  (103) e53163 (2015).

S.L. Codd, J.D. Seymour, E.L. Gjersing, J.P. Gage, and J.R. Brown.  2006.  “Magnetic resonance microscopy of biofilm and bioreactor transport” in NMR Imaging in Chemical Engineering, Editors: S. Stapf and S.I. Han.  Wiley-VCH.  Chapter 5.1, pages 509-533.

S.C. Chinn, J.L. Herberg, A.M. Sawvel, E.L. Gjersing and R.S. Maxwell.  “Characterization of local deformation in filled-silicone elastomers subject to high strain - NMR MOUSE and Magnetic Resonance Imaging as a diagnostic tool for detection of inhomogeneities.” Polymer Degradation and Stability, 91, 1701-1710 (2006).

S. Sen, S. Soyer-Uzun, E.L. Gjersing, B.G. Aitken, S. Gaudio, A.N. Clark, and C.E. Lesher.  “Pressure-induced instabilities of low-dimensional structural units in chalcogenide glasses at ambient temperature.”  Journal of Optoelectronics and Advanced Materials, 9, 3553-3557 (2007).

S. Sen, E.L. Gjersing, and B.G. Aitken.  “Physical properties of GexAs2xTe100-3x glasses and Raman spectroscopic analyses of their short-range structure.”  Journal of Non-Crystalline Solids, 356, 2083-2088 (2010).

S. Sen, E.L. Gjersing,  H. Maekawa, Y. Noda, M. Ando, M. Tansho, T. Shimizu, V.P. Klyuev, and B.Z. Pevzner. “Atomic structure of BeO-B2O3-Al2O3 glasses: 11B and 27Al MAS NMR spectroscopy at 21.8 Tesla.”  Physical Chemistry of Glasses: European Journal of Glass Science and Technology B., 50 (4), 262-266 (2009).

S. Cheah, A. Starace, E. Gjersing, S. Bernier and S. Deutch.  “Reactions of mixture of oxygenates found in pyrolysis vapors: deoxygenations of hydroxyacetaldehyde and guaiacol catalyzed by HZSM-5.”  Topics in Catalysis.  59: 109-123 (2016)

R.W. Sykes, K. Foutz, W.H. Rottmann, M.A.W. Hinchee, C.E. Foster, E.L. Gjersing, A. Ziebell, G.B. Turner., S.R. Decker, and M.F. Davis. “Down-Regulation of C3H and C4H Genes in the Lignin Biosynthetic Pathway of Eucalyptus urophylla × E. grandis Leads to Improved Sugar Release.” Biotechnology for Biofuels. 8(3) 964-972 (2015).

R.W. Sykes, E.L. Gjersing, C.L. Doeppke, and M.F. Davis. “High-Throughput Method for Determining the Sugar Content in Biomass with Pyrolysis Molecular Beam Mass Spectrometry.” Bioenergy Research. 8(3) 964-972 (2015).

R. French, S. Black, M. Myers, J. Stunkel, E. Gjersing, and K. Iisa.  “Hydrotreating the organic fraction of biomass pyrolysis oil to a refinery intermediate.”  Energy and Fuels.  29, 7985-7992 (2015)

P.S. Stewart, S.A. Rani, E. Gjersing, S.L. Codd, Z. Zheng, and B. Pitts.  “Observations of cell cluster hollowing in Staphylococcus epidermidis biofilms.”  Letters in Applied Microbiology, 44, 454-457 (2007).

N.A. Rorrer, D.R. Vardon, J.R. Dorgan, E.L. Gjersing, G.T. Beckham.  “Biomass-derived monomers for performance-differentiated fiber reinforced polymer composites.” Green Chemistry. 19, 2812-2825 (2017)

M. Li, Y. Pu, C.G. Yoo, E. Gjersing, S.R. Decker, C. Doeppke, T. Shollenberger, T.J. Tschaplinski, N.L. Engle, R.W. Sykes, M.F. Davis, H.L. Baxter, M. Mazarei, C.X. Fu, R.A. Dixon, Z.Y. Wang, C.N. Stewart, A.J. Ragauskas.  “Study of traits and recalcitrance reduction of field-grown COMT down-regulated switchgrass.”  Biotechnology for Biofuels.  10, 12 (2017)

M. Foston, R. Katihira, E. Gjersing, M. Davis, and A.J. Ragauskas. “Solid-state selective 13C excitation and spin diffusion NMR to resolve spatial dimensions in plant cell walls.”  Journal of

M.  Foston, C.A. Hubbell, R. Samuel, S. Jung, H. Fan, S. Ding, Y. Zeng, S. Jawdy, M. Davis, R. Sykes, E. Gjersing, G.A. Tuskan, U. Kalluri. And A.J. Ragauskas.  “Chemical, ultrastructural and supramoleclular analysis of tension wood in Populus tremula x alba as a model substrate for reduced recalcitrance.”  Energy & Environmental Science, 4, 4962-4971 (2011).

L. Warner, E. Gjersing, W. Elliot, S. Follett, S. Dzyuba, and K. Varga. “Effect of 1-butyl-3-methylimidazolium bromide on the structure of GB1 probed by HR-MAS NMR spectroscopy.” Biochemistry and Biophysics Reports. 8, 75-80 (2016)

J.S. Lupoi, E. Gjersing, and M.F. Davis.  “Evaluating lignocellulosic biomass, its derivatives, and downstream products with Raman spectroscopy.” Frontiers in Bioengineering and Biotechnology Research Topic.  3:50 (2015).

J.R. Giuliani, E.L. Gjersing, S.C. Chinn, T.V. Jones, T.S. Wilson, C.T. Alviso, J.L. Herberg, M.A. Pearson, and R.S. Maxwell.  “Thermal degradation in a trimodal poly(dimethylsiloxane) network studied by 1H multiple quantum NMR.”  Journal of Physical Chemistry B, 111, 12977-12984 (2007).

J.M.D. Paye, L. Lynd, A. Guseva, S.K. Hammer, E. Gjersing, M.F. Davis, B.H. Davison, J. Olstad, B.S. Donohoe, T.Y. Nguyen, C.E. Wyman, S. Pattathil and M.G. Hahn. “Biological lignocellulose solubilization: Comparative evaluation of biocatalysts and enhancement via cotreatment.” Biotechnology for Biofuels. 9:8 (2016)

J.D. Seymour, S.L. Codd, E.L. Gjersing, and P.S. Stewart. “Magnetic resonance microscopy of biofilm structure and impact on transport in a capillary bioreactor.” Journal of Magnetic Resonance, 167, 322-327 (2004).

H. Shen, C.R. Poovaiah, A. Ziebell, T.J. Tschaplinski, S. Pattathil, E.Gjersing, N. Engle, R. Katahira, Y. Pu, R. Sykes, F. Chen, A.J. Ragauskas, J.R. Mielenz, M.G. Hahn, M. Davis, N. Stewart and R.A. Dixon.  “Enhanced characteristics of genetically modified switchgrass for high biofuel production.”  Biotechnology for Biofuels, 6, 71 (2013).

H. Ben, M. Jarvis, M. Biddy, E. Gjersing, M. Nimlos, M. Sturgeon, T. Foust, and A. Ragauskas. “Application of pyroprobe-NMR system – a mechanistic study of lignin model compounds ring opening by deuterium tracing.” Energy and Fuels. 30, 2968-2974 (2016)

E.L.Gjersing, J.D. Seymour, S.L. Codd, and P.S. Stewart. “Magnetic resonance microscopy analysis of advective transport in a biofilm reactor.” Biotechnology and Bioengineering, 89(7), 822-834 (2005).

E.L. Gjersing, S. Sen, P. Yu, and B.G. Aitken.  “Anomalously large decoupling of rotational and shear relaxation in a molecular glass.”  Physical Review B, 76, 214202-1-4 (2007).

E.L. Gjersing, S. Sen, H. Maekawa, and B.G. Aitken.  “Hierarchical dynamics of As2P2S8 quasi-molecular units in a supercooled liquid in the As-P-S system: A 31P NMR spectroscopic study.”  Journal of Physical Chemistry B, 113, 8514-8519 (2009).

E.L. Gjersing, S. Sen, and B.G. Aitken.  “Vibrational entropy near glass transition in a chalcogenide glass and supercooled liquid.”  Journal of Non-Crystalline Solids, 355, 748-752 (2009).

E.L. Gjersing, S. Sen, and B.G. Aitken.  “Structure, connectivity and configurational entropy of GexSe100-x Glasses: Results from 77Se MAS NMR Spectroscopy.”  Journal of Physical Chemistry C, 114, 8601-8608 (2010).

E.L. Gjersing, S. Sen and B.G. Aitken.  “Molecular dynamics in supercooled P-Se liquids near the glass transition: Results from 31P NMR Spectroscopy.”  The Journal of Physical Chemistry B, 115, 2857-2863 (2011).

E.L. Gjersing, R.E. Youngman, and S. Sen.  “Mechanistic understanding of the effect of rigidity percolation on structural relaxation in supercooled germanium selenide liquids.” Physical Review B, 82, 014203 (2010).

E.L. Gjersing, R. Happs, R. Sykes, C. Doeppke, and M.F. Davis.  “Rapid determination of components found in biomass hydrolysates using nuclear magnetic resonance spectroscopy.”  Biotechnology and Bioengineering110, 721-728 (2013).

E.L. Gjersing, J.L. Herberg, J. Horn, C. Schaldrach, and R. Maxwell.  “NMR metabolomics of planktonic and biofilm modes of growth in Pseudomonas aeruginosa.”  Analytical Chemistry, 79, 8037-8045 (2007).

E. Mizrachi, L. Verbeke, N. Christie, A.C. Fierro, S.D. Mansfield, M.F. Davis, E. Gjersing, G.A. Tuskan, M. Van Montagu, Y. Van de Peer, K. Marchal, A.A. Myburg.  “Network-based integration of systems genetics data reveals pathways associated with lignocellulosic biomass accumulation and processing.” Proceedings of the National Academy of Sciences USA. 114, 1195-1200 (2017).

E. Gjersing, S. Chinn, R.S. Maxwell, J. Herberg, E. Eastwood, D. Bowen, and T. Stephens.  “Investigation of network heterogeneities in filled, trimodal, highly functional PDMS networks by 1H Multiple Quantum NMR.”  Macromolecules, 40, 4953-4962 (2007).

E. Christensen, G.M. Fioroni, S. Kim, L. Fouts, E. Gjersing, R.S. Paton, R.L. McCormick. “Experimental and theoretical study of oxidative stability of alkylated furans used as gasoline blend components.”  Fuel.  212, 576-585 (2018)

D.D. Serba, R.Sykes, E. Gjersing, G. Daverdin, J.H. Bouton, K.M. Devos, E.C. Brummer, and M.C. Saha.  “Variation in Cell Wall Composition and Underlying QTL in a Pseudo F1 Population of Switchgrass.”  Bioenergy Research.  8, 307-324 (2016)

D.C. Miller, J.D. Carloni, J.W. Pankow, E.L. Gjersing, D.K. Johnson, B. To, C.E. Packard, C.E. Kennedy, and S.R. Kurtz.  “A comparison of the changes in Poly(methyl methacrylate) specimens after exposure to ultra-violet light, heat, and humidity.”  Solar Energy Materials & Solar Cells, 111, 165-180, (2013).

D. Gerion, J. Herberg, E. Gjersing, F.F. Chen., E. Ramon, R. Maxwell and J.W. Gray.  “Paramagnetic silica-coated nanocrystals as an advanced MRI contrast agent.”  Journal of Physical Chemistry, 111, 12542-12551 (2007).

C.W. Edmunds, P. Peralta, S.S. Kelley, V.L. Chiang, R.R. Sharma-Shivappa, M.F. Davis, A.E. Harman-Ware, R.W. Sykes, E. Gjersing, M.W. Cunningham, W. Rottmann, Z.D. Miller, I. Peszlen.  “Characterization and enzymatic hydrolysis of wood from transgenic Pinus taeda engineered with syringyl lignin or reduced lignin content.” Cellulose. 24, 1901-1914 (2017)

C.P. Nash, A. Ramanathan, D.A. Ruddy, M. Behl, E. Gjersing, M. Griffin, H. Zhu, B. Subramaniam; J.A. Schaidle, and J.E. Hensley. “Mixed Alcohol Dehydration over Brønsted and Lewis Acidic Catalysts.”  Applied Catalysis A: General. 110-124 (2016)

C. Mukarakate, X. Zhang, A.R. Stanton, D.J. Robichaud, P.N. Ciesielski, K. Malhotra, B.S. Donohoe, E. Gjersing, R.J. Evans, D.S. Heroux, R. Richards, K. Iisa, and M.R. Nimlos.  “Catalytic upgrading of pine pyrolysis vapors on HZSM-5 and the effects of coke formation.”  Green Chemistry, 16, 1444 (2014).

C. Engtrakul, V. Irurzun, E. Gjersing, J. Holt, B. Larsen, D. Resasco, and J. Blackburn.  “Unraveling the 13C NMR chemical shifts in single-walled carbon nanotubes: dependence on diameter and electronic structure.”  Journal of the American Chemical Society134, 4850-4856 (2012).

Agricultural and Food Chemistry60, 1419-1427 (2012)

A.K. Biswal, Z. Hao, S. Pattathil, X. Yang, K. Winkeler, C. Collins, S.S. Mohanty, E.A. Richardson, I. Gelineo-Albersheim, K. Hunt, D. Ryno, R.W. Sykes, G.B. Turner, A. Ziebell, E. Gjersing, W. Lukowitz, M.F. Davis, S.R. Decker, M.G. Hahn and D. Mohnen.  “Down-regulation of GAUT12 in Populus deltoides by RNAsilencing results in reduced recalcitrance, increased growth and reduced xylan and pectin in a woody biofuel feedstock.”  Biotechnology for Biofuels.  8 (41) (2015).

A. Ziebell, E. Gjersing, M. Hinchee, R. Katahira, R.W. Sykes, D.K. Johnson, and M.F. Davis. “Downregulation of p-coumarate 3-hydroxylase (C3H) or cinnamate-4-hydrolylase (C4H) in Eucalyptus urophylla x grandi leads to increased extractability.” Bioenergy Research. 9, 6910699 (2016)

A. Bryan, S. Jawdy, L. Gunter, E. Gjersing, R. Sykes, M. Hinchee, K. Winkeler, C. Collins, N. Engle, T. Tschaplinski, X. Yang, G. Tuscan, W. Muchero, and J. Chen. “Knockdown of a laccase in Populus deltoides confers altered cell wall chemistry and increased sugar release.” Plant Biotechnology Journal. 14, 2010-2020 (2016)