Umesh P. Agarwal

Treesearch Publications

• Umesh P. Agarwal, Sally Ralph. 2024. Raman Spectra of Delignified Plant Fibers: Exploring the Impact of Xylan’s Presence on the Spectral Features of Cellulose
• Xiaoxue Zhang, Peter Kitin, Umesh P. Agarwal, Roland L. Gleisner, Junyong Zhu. 2023. Characterizing lignin-containing microfibrillated cellulose based on water interactions, fibril properties, and imaging
• Umesh P. Agarwal, Sally Ralph, Richard Reiner, Carlos Baez. 2023. Revisiting the phenomena of cocrystallization and moisture-induced shift in XRDs
• Umesh P. Agarwal, Richard Reiner, Carlos Baez, Sally Ralph. 2023. On the crystallinity of cellulose in wood: the newest findings lend further support to its non-crystalline nature
• Liqing Wei, Huiyang Bian, Umesh P. Agarwal, Ronald C. Sabo, Laurent M. Matuana, Nicole M. Stark. 2023. Correlation between morphology and performance of cellulose nanofibril-based films
• Umesh P. Agarwal, Richard Reiner, Carlos Baez, Sally Ralph. 2023. Native state of wood cellulose: evidence that further supports its non-crystalline nature
• Qingzhi Ma, Kolby Hirth, Umesh P. Agarwal, Junyong Zhu. 2022. Oxidative delignification: The roles of lignin reactivity and accessibility
• Umesh P. Agarwal. 2022. Beyond Crystallinity: Using Raman Spectroscopic Methods to Further Define Aggregated/Supramolecular Structure of Cellulose
• Junyong Zhu, Umesh P. Agarwal, Peter N. Ciesielski, Michael E. Himmel, Runan Gao, Yulin Deng, Maria Morits, Monika Österberg. 2021. Towards sustainable production and utilization of plant-biomass-based nanomaterials: a review and analysis of recent developments
• Umesh P. Agarwal, Sally Ralph, Carlos Baez, Richard Reiner. 2021. Detection and quantitation of cellulose II by Raman spectroscopy
• Umesh P. Agarwal, Sally Ralph, Carlos Baez, Richard Reiner. 2021. Contributions of Crystalline and Noncrystalline Cellulose Can Occur in the Same Spectral Regions: Evidence Based on Raman and IR and Its Implication for Crystallinity Measurements
• Umesh P. Agarwal, Richard Reiner, Sally Ralph, Jeffery Catchmark, Kai Chi, E. Johan Foster, Christopher G. Hunt, Carlos Baez, Rebecca E. Ibach, Kolby Hirth. 2021. Characterization of the supramolecular structures of cellulose nanocrystals of different origins
• Matthew J. Dunlop, Craig M. Clemons, Richard Reiner, Ronald C. Sabo, Umesh P. Agarwal, Rabin Bissessur, Helia Sojoudiasli, Pierre J. Carreau, Bishnu Acharya. 2020. Towards the scalable isolation of cellulose nanocrystals from tunicates
• Huihui Wang, Jonathan J. Zhu, Qianli Ma, Umesh P. Agarwal, Roland L. Gleisner, Richard Reiner, Carlos Baez, Junyong Zhu. 2020. Pilot-scale production of cellulosic nanowhiskers with similar morphology to cellulose nanocrystals
• Shishir P. S. Chundawat, Umesh P. Agarwal. 2019. Swelling by hydrochloric acid partially retains cellulose-I type allomorphic ultrastructure but enhances susceptibility toward cellulase hydrolysis such as highly amorphous cellulose
• Umesh P. Agarwal. 2019. Analysis of cellulose and lignocellulose materials by Raman spectroscopy: A review of the current status
• Umesh P. Agarwal, Sally Ralph, Dharshana Padmakshan, Sarah Liu, Cliff E. Foster. 2019. Estimation of syringyl units in wood lignins by FT-Raman spectroscopy
• Umesh P. Agarwal, Sally Ralph, Richard Reiner, Christopher G. Hunt, Carlos Baez, Rebecca E. Ibach, Kolby Hirth. 2018. Production of high lignin-containing and lignin-free cellulose nanocrystals from wood
• E. Johan Foster, Robert J. Moon, Umesh P. Agarwal, Michael J. Bortner, Julien Bras, Sandra Camarero-Espinosa, Kathleen J. Chan, Martin J. D. Clift, Emily D. Cranston, Stephen J. Eichhorn, Douglas M. Fox, Wadood Y. Hamad, Laurent Heux, Bruno Jean, Matthew Korey, World Nieh, Kimberly J. Ong, Michael S. Reid, Scott Renneckar, Rose Roberts, Jo Anne Shatkin, John Simonsen, Kelly Stinson-Bagby, Nandula Wanasekara, Jeff Youngblood. 2018. Current characterization methods for cellulose nanomaterials
• Umesh P. Agarwal, Sally Ralph, Richard Reiner, Carlos Baez. 2018. New cellulose crystallinity estimation method that differentiates between organized and crystalline phases
• Liqing Wei, Umesh P. Agarwal, Laurent Matuana, Ronald C. Sabo, Nicole M. Stark. 2018. Performance of high lignin content cellulose nanocrystals in poly(lactic acid)
• Rajai H. Atalla, Rowan S Atalla, Umesh P. Agarwal. 2018. The nanostructures of native celluloses, their transformations upon isolation, and their implications for production of nanocelluloses
• Liqing Wei, Shupin Luo, Armando G. McDonald, Umesh P. Agarwal, Kolby Hirth, Laurent M. Matuana, Ronald C. Sabo, Nicole M. Stark. 2017. Preparation and characterization of the nanocomposites from chemically modified nanocellulose and poly(lactic acid)
• Umesh P. Agarwal. 2017. Raman spectroscopy in the analysis of cellulose nanomaterials
• Liqing Wei, Umesh P. Agarwal, Nicole M. Stark, Ronald C. Sabo. 2017. Nanocomposites from lignin-containing cellulose nanocrystals and poly(lactic acid)
• Liqing Wei, Umesh P. Agarwal, Kolby Hirth, Laurent M. Matuana, Ronald C. Sabo, Nicole M. Stark. 2017. Chemical modification of nanocellulose with canola oil fatty acid methyl ester
• Chao Jia, Liheng Chen, Ziqiang Shao, Umesh P. Agarwal, Liangbing Hu, Junyong Zhu. 2017. Using a fully recyclable dicarboxylic acid for producing dispersible and thermally stable cellulose nanomaterials from different cellulosic sources
• Umesh P. Agarwal, Sally Ralph, Carlos Baez, Richard Reiner, Steve P. Verrill. 2017. Effect of sample moisture content on XRD-estimated cellulose crystallinity index and crystallite size
• Umesh P. Agarwal. 2017. Raman spectroscopy of CNC- and CNF-based nanocomposites
• Nicole M. Stark, Daniel J. Yelle, Umesh P. Agarwal. 2016. Techniques for characterizing lignin
• Umesh P. Agarwal, Sally Ralph, Richard Reiner, Carlos Baez. 2016. Probing crystallinity of never-dried wood cellulose with Raman spectroscopy
• Liheng Chen, Qianqian Wang, Kolby Hirth, Carlos Baez, Umesh P. Agarwal, Junyong Zhu. 2015. Tailoring the yield and characteristics of wood cellulose nanocrystals (CNC) using concentrated acid hydrolysis
• Umesh P. Agarwal, Sally Ralph, Richard Reiner, Carlos Baez. 2015. New Model of Wood Cell Wall Microfibril and Its Implications
• Umesh P. Agarwal, Sally Ralph, Richard Reiner, Nicole M. Stark. 2015. Formation of Irreversible H-bonds in Cellulose Materials
• Umesh P. Agarwal, Richard Reiner, Christopher G. Hunt, Jeffery Catchmark, E. Johan Foster, Akira Isogai. 2015. Comparison of Cellulose Supramolecular Structures Between Nanocrystals of Different Origins
• Umesh P. Agarwal, Sally Ralph, Dharshana Padmakshan, Sarah Liu, Steven D. Karlen, Cliff Foster, John Ralph. 2015. Estimation of S/G ratio in woods using 1064 nm FT-Raman spectroscopy
• Umesh P. Agarwal. 2014. 1064nm FT-Raman spectroscopy for investigations of plant cell walls and other biomass materials
• Umesh P. Agarwal, Sally Ralph, Richard Reiner, Roderquita Moore, Carlos Baez. 2014. Impacts of fiber orientation and milling on observed crystallinity in jack pine
• Umesh P. Agarwal, Sally Ralph. 2014. On the conflicting findings of Role of Cellulose-Crystallinity in Enzyme Hydrolysis of Biomass
• Umesh P. Agarwal, Richard Reiner, Sally Ralph. 2013. Chapter 1.1 Crystallinity of Nanocellulose Materials by Near-IR FT-Raman Spectroscopy
• Umesh P. Agarwal, Ronald C. Sabo, Richard Reiner, Craig M. Clemons, Alan W. Rudie. 2013. Chapter 1.4: Spatially Resolved Characterization of CNC-Polypropylene composite by Confocal Raman Microscopy
• Umesh P. Agarwal, Richard Reiner, Sally Ralph. 2013. Estimation of Cellulose Crystallinity of Lignocelluloses Using Near-IR FT-Raman Spectroscopy and Comparison of the Raman and Segal-WAXS Methods
• Yan Qing, Ronald C. Sabo, Junyong Zhu, Umesh P. Agarwal, Zhiyong Cai, Yiqiang Wu. 2013. A comparative study of cellulose nanofibrils disintegrated via multiple processing approaches
• Umesh P. Agarwal, Junyong Zhu, Sally Ralph. 2013. Enzymatic hydrolysis of loblolly pine: effects of cellulose crystallinity and delignification
• Sung Phil Mun, Zhiyong Cai, Fumiya Watanabe, Umesh P. Agarwal, Jilei Zhang. 2012. Thermal Conversion of Pine Wood Char to Carbon Nanomaterials in the Presence of Iron Nanoparticles
• Umesh P. Agarwal, Ronald C. Sabo, Richard Reiner, Craig M. Clemons, Alan W. Rudie. 2012. Spatially Resolved Characterization of Cellulose Nanocrystal-Polypropylene Composite by Confocal Raman Microscopy
• 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, S. Gnanakaran, Bruce E. Dale. 2011. Restructuring the crystalline cellulose hydrogen bond network enhances its depolymerization rate
• Shishir P. S. Chundawat, Bryon S. Donohoe, Leonardo da Costa Sousa, Thomas Elder, Umesh P. Agarwal, Fachuang Lu, John Ralph, Michael E. Himmel, Venkatesh Balan, Bruce E. Dale. 2011. Multi-scale visualization and characterization of lignocellulosic plant cell wall deconstruction during thermochemical pretreatment
• Umesh P. Agarwal, James McSweeny, Sally Ralph. 2011. FT-Raman investigation of milled-wood lignins : softwood, hardwood, and chemically modified black spruce lignins
• Umesh P. Agarwal, Rajai Atalla. 2010. Vibrational spectroscopy
• Umesh P. Agarwal, Richard Reiner, Sally Ralph. 2010. Cellulose I crystallinity determination using FT-Raman spectroscopy : univariate and multivariate methods
• Umesh P. Agarwal, Richard Reiner. 2009. Near-Ir surface-enhanced Raman spectrum of lignin
• Umesh P. Agarwal, Ronald C. Sabo, Richard Reiner, Craig M. Clemons, Alan W. Rudie. 2009. Raman analysis and mapping of cellulose nanocrystal-polypropylene composite
• Umesh P. Agarwal, Richard Reiner, James Beecher. 2009. Surface enhanced Raman spectroscopy for lignin analysis
• Umesh P. Agarwal, Richard Reiner, Sally Ralph. 2009. Determination of cellulose I crystallinity by FT-Raman spectroscopy
• Umesh P. Agarwal, Sally Ralph. 2008. Determination of ethylenic residues in wood and TMP of spruce by FT-Raman spectroscopy
• Umesh P. Agarwal. 2008. Raman spectroscopic characterization of wood and pulp fibers
• Umesh P. Agarwal. 2007. Higher acid-chlorite reactivity of cell corner middle lamella lignin in black spruce
• Umesh P. Agarwal, Sally Ralph. 2007. Revealing organization of cellulose in wood cell walls by Raman imaging
• Umesh P. Agarwal. 2006. Raman imaging to investigate ultrastructure and composition of plant cell walls : distribution of lignin and cellulose in black spruce wood (Picea mariana)
• Umesh P. Agarwal, Richard Reiner, Sally Ralph. 2006. Using nano- and micro-particles of silver in lignin analysis
• Biljana Bujanovic, Richard Reiner, Sally Ralph, Umesh P. Agarwal, Rajai Atalla. 2005. Structural changes of residual lignin of softwood and hardwood kraft pulp upon oxidative treatment with polyoxometalates
• Umesh P. Agarwal, Richard Reiner, Ashok K. Pandey, Sally Ralph, Kolby Hirth, Rajai Atalla. 2005. Raman spectra of lignin model compounds
• Umesh P. Agarwal. 2005. Raman imaging of lignin and cellulose distribution in black spruce wood (Picea mariana) cell walls
• Umesh P. Agarwal, Nancy Kawai. 2005. “Self-absorption” phenomenon in near-infrared Fourier transform Raman spectroscopy of cellulosic and lignocellulosic materials
• Umesh P. Agarwal. 2005. Predicting photoyellowing behaviour of mechanical pulp containing papers
• Umesh P. Agarwal, Sally Ralph. 2003. In situ quantitation of ring-conjugated ethylenic lignin-units in spruce thermomechanical pulps by FT-Raman spectroscopy
• Akira Isogai, Umesh P. Agarwal, Rajai Atalla. 2003. Raman microprobe analysis of single ramie fiber during mercerization
• Umesh P. Agarwal, Noritsugu Terashima. 2003. FT-Raman study of dehydrogenation polymer (DHP) lignins
• Umesh P. Agarwal, Nancy Kawai. 2003. FT-Raman spectra of cellulose and lignocellulose materials : “self-absorption” phenomenon and its implications for quantitative work
• Chris Hunt, Xiaochun Yu, James Bond, Umesh P. Agarwal, Raj Atalla. 2003. Aging of printing and writing paper upon exposure to light. Part 2, Mechanical and chemical properties
• Umesh P. Agarwal. 2000. Ranking mechanical pulps for their potential to photoyellow
• Umesh P. Agarwal. 1999. On the importance of hydroquinone/p-quinone redox system in the photoyellowing of mechanical pulps
• Umesh P. Agarwal, James McSweeny, Sally Ralph. 1999. An FT-raman study of softwood, hardwood, and chemically modified black spruce MWLS