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Paul Langan
Researcher at Oak Ridge National Laboratory
Publications - 171
Citations - 12825
Paul Langan is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Neutron diffraction & Neutron. The author has an hindex of 44, co-authored 170 publications receiving 10983 citations. Previous affiliations of Paul Langan include United States Department of Energy & Keele University.
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Journal ArticleDOI
Lignin valorization: improving lignin processing in the biorefinery.
Arthur J. Ragauskas,Gregg T. Beckham,Mary J. Biddy,Richard P. Chandra,Fang Chen,Mark F. Davis,Brian H. Davison,Richard A. Dixon,Paul Gilna,Martin Keller,Paul Langan,Amit K. Naskar,John N. Saddler,Timothy J. Tschaplinski,Gerald A. Tuskan,Charles E. Wyman +15 more
TL;DR: Recent developments in genetic engineering, enhanced extraction methods, and a deeper understanding of the structure of lignin are yielding promising opportunities for efficient conversion of this renewable resource to carbon fibers, polymers, commodity chemicals, and fuels.
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Crystal Structure and Hydrogen-Bonding System in Cellulose Iβ from Synchrotron X-ray and Neutron Fiber Diffraction
TL;DR: In this article, the crystal and molecular structure of cellulose Iβ were determined using synchrotron and neutron diffraction data recorded from oriented fibrous samples prepared by aligning cellulose microcrystals from tunicin.
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X-ray structure of mercerized cellulose II at 1 Å resolution
TL;DR: A revised crystal structure for mercerized cellulose based on high-resolution synchrotron X-ray data collected from ramie fibers is reported, and the conformation of the hydroxymethyl group of the center chain in the structure reported here differs significantly from the Conformation in regenerated cellulose.
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Restructuring the crystalline cellulose hydrogen bond network enhances its depolymerization rate
Shishir P. S. Chundawat,Giovanni Bellesia,Nirmal Uppugundla,Leonardo da Costa Sousa,Dahai Gao,Albert M. Cheh,Umesh P. Agarwal,Christopher M. Bianchetti,George N. Phillips,Paul Langan,Venkatesh Balan,Sandrasegaram Gnanakaran,Bruce E. Dale +12 more
TL;DR: How the synergistic activity of cellulases was enhanced by altering the hydrogen bond network within crystalline cellulose fibrils was demonstrated, which led to an enhancement in apparent cellulase activity and unique insight into the nature of cellulose recalcitrance.
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A revised structure and hydrogen-bonding system in cellulose ii from a neutron fiber diffraction analysis
TL;DR: In this article, the crystal and molecular structure and hydrogen bonding system in cellulose II have been revised using new neutron diffraction data extending to 1.2 õangstrom resolution.