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Literature DB >> 23465910

Novel insight into cellulose supramolecular structure through ¹³C CP-MAS NMR spectroscopy and paramagnetic relaxation enhancement.

Gerhard Zuckerstätter¹, Nicoleta Terinte, Herbert Sixta, Kurt Christian Schuster.

Abstract

(13)C CP-MAS NMR and paramagnetic relaxation enhancement provide novel insight into the supramolecular structure of solid cellulose I and II. Separable NMR signals associated with crystalline interiors, solvent accessible and inaccessible surfaces, as well as non-crystalline material are assigned and confirmed. For the first time solvent accessibility is evidenced and monitored through (13)C T1 NMR relaxation enhancement in paramagnetic medium. Established NMR signal assignments for cellulose I have been confirmed. Existing cellulose II resonance attributions have been modified and extended. Novel spectral fitting routines for cellulose II allow for the reproducible quantification of separable signal contributions. Results from NMR line shape analyses are straightforwardly introduced into a model for cellulose II supramolecular structure.

Entities: Chemical

Mesh：

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Year: 2012 PMID： 23465910 DOI： 10.1016/j.carbpol.2012.05.019

Source DB: PubMed Journal: Carbohydr Polym ISSN： 0144-8617 Impact factor: 9.381

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Cited

7 in total

1. Investigation of the internal structure and dynamics of cellulose by ¹³C-NMR relaxometry and 2DPASS-MAS-NMR measurements.

Authors: Manasi Ghosh; Naveen Kango; Krishna Kishor Dey
Journal: J Biomol NMR Date: 2019-08-14 Impact factor: 2.835

7. On the Identification of Rayon/Viscose as a Major Fraction of Microplastics in the Marine Environment: Discrimination between Natural and Manmade Cellulosic Fibers Using Fourier Transform Infrared Spectroscopy.

Authors: Ionela Raluca Comnea-Stancu; Karin Wieland; Georg Ramer; Andreas Schwaighofer; Bernhard Lendl
Journal: Appl Spectrosc Date: 2016-09-20 Impact factor: 2.388

7 in total

Novel insight into cellulose supramolecular structure through ¹³C CP-MAS NMR spectroscopy and paramagnetic relaxation enhancement.

1. Investigation of the internal structure and dynamics of cellulose by ¹³C-NMR relaxometry and 2DPASS-MAS-NMR measurements.

Review 2. Solid-State NMR Investigations of Extracellular Matrixes and Cell Walls of Algae, Bacteria, Fungi, and Plants.

3. Altered lignocellulose chemical structure and molecular assembly in CINNAMYL ALCOHOL DEHYDROGENASE-deficient rice.

4. Rearrangement of the Cellulose-Enriched Cell Wall in Flax Phloem Fibers over the Course of the Gravitropic Reaction.

Review 5. Solid State NMR a Powerful Technique for Investigating Sustainable/Renewable Cellulose-Based Materials.

6. Unraveling variations of crystalline cellulose induced by ionic liquid and their effects on enzymatic hydrolysis.

7. On the Identification of Rayon/Viscose as a Major Fraction of Microplastics in the Marine Environment: Discrimination between Natural and Manmade Cellulosic Fibers Using Fourier Transform Infrared Spectroscopy.

Novel insight into cellulose supramolecular structure through ¹³C CP-MAS NMR spectroscopy and paramagnetic relaxation enhancement.

1. Investigation of the internal structure and dynamics of cellulose by 13C-NMR relaxometry and 2DPASS-MAS-NMR measurements.

Review 2. Solid-State NMR Investigations of Extracellular Matrixes and Cell Walls of Algae, Bacteria, Fungi, and Plants.

3. Altered lignocellulose chemical structure and molecular assembly in CINNAMYL ALCOHOL DEHYDROGENASE-deficient rice.

4. Rearrangement of the Cellulose-Enriched Cell Wall in Flax Phloem Fibers over the Course of the Gravitropic Reaction.

Review 5. Solid State NMR a Powerful Technique for Investigating Sustainable/Renewable Cellulose-Based Materials.

6. Unraveling variations of crystalline cellulose induced by ionic liquid and their effects on enzymatic hydrolysis.

7. On the Identification of Rayon/Viscose as a Major Fraction of Microplastics in the Marine Environment: Discrimination between Natural and Manmade Cellulosic Fibers Using Fourier Transform Infrared Spectroscopy.

1. Investigation of the internal structure and dynamics of cellulose by ¹³C-NMR relaxometry and 2DPASS-MAS-NMR measurements.