Solvent-Assisted Fractionation of Oligomeric Cellulose and Reversible Transformation of Cellulose II and IV

Zhang, Xin; Jiang, Feng; Torres-Luna, Cesar; Nishiyama, Yoshiharu; Briber, Robert M.; Wang, Howard

doi:10.1021/acsbiomaterials.1c00885

Cited by 7 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solvent vapour induces the phase transformation in ultrathin cellulose films to the same crystalline structure as that in the bulk oligocellulose, namely type II in water or IV II in DMSO (Zhang et al 2021). The essential differences due to the thin film geometry are in two aspects, namely the surface and confinement effects.…”

Section: Resultsmentioning

confidence: 99%

“…Further studies through quantifying phase transformation in amorphous cellulose thin films upon exposure to water or DMSO will add to the collection of literatures along this line of research. Our previous studies show the reversible transformation between cellulose II and IV II upon exposing the powder of near-monodisperse oligocellulose to liquid water and DMSO vapour, respectively (Zhang et al 2021). In this study, we prepare ultrathin amorphous cellulose films and measure the evolution of cellulose structures in films upon exposing to saturated water or DMSO vapour at elevated temperatures.…”

Section: Introductionmentioning

confidence: 88%

“…The white precipitate was oligocellulose fraction DP7 with an average degree of polymerization (DP) of 7.68 and a polydispersity index (PDI) of 1.04. DP7 was further fractionated using a previously reported method (Zhang et al 2021). A solution of 5.0% DP7 by mass in DMSO (Sigma-Aldrich) was homogenized at 90 °C and stored at 15 °C for 3 hours.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Vapour-induced phase transformation in ultrathin cellulose films

Liu

Mei

et al. 2023

Cellulose

Self Cite

View full text Add to dashboard Cite

The structural transformation of thin amorphous cellulose films in water and organic solvent vapour has been studied using grazing-incidence X-ray diffraction and atomic force microscopy. Amorphous cellulose films transform to cellulose II upon exposure to water vapour, and cellulose IV II in the dimethyl sulfoxide (DMSO) vapour. The anisotropy in crystalline orientation has developed during the vapour exposure, due both to the surface and confinement effects in thin film geometry. The findings imply a novel route of the vapour treatment of cellulose films to obtain unique structures.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 88%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Vapour-induced phase transformation in ultrathin cellulose films

Liu

Mei

et al. 2023

Cellulose

Self Cite

View full text Add to dashboard Cite

show abstract

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

Harvey

2024

Mass Spectrometry Reviews

View full text Add to dashboard Cite

The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022. As with previous review, this review also includes a few papers that describe methods appropriate to analysis by MALDI, such as sample preparation, even though the ionization method is not MALDI. The review follows the same format as previous reviews. It is divided into three sections: (1) general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, quantification and the use of computer software for structural identification. (2) Applications to various structural types such as oligo‐ and polysaccharides, glycoproteins, glycolipids, glycosides and biopharmaceuticals, and (3) other general areas such as medicine, industrial processes, natural products and glycan synthesis where MALDI is extensively used. Much of the material relating to applications is presented in tabular form. MALDI is still an ideal technique for carbohydrate analysis, particularly in its ability to produce single ions from each analyte and advancements in the technique and range of applications show little sign of diminishing.

show abstract

Quantitative analysis of the formation of monodisperse cello-oligomers obtained by phosphoric acid hydrolysis

et al. 2023

View full text Add to dashboard Cite

Hydrolysis of cellulose in concentrated phosphoric acid is known to give two distinctive mono-disperse cello-oligomers: the degree of polymerization (DP) of 7 and 15. To understand the formation mechanism of monodisperse cello-oligomers, the transition of DP during phosphoric hydrolysis was monitored by size-exclusion chromatography combined with multiangle laser-light scattering analyses (SEC/MALLS). The obtained results suggested that not the hydrolysis at a specific length but random hydrolysis was likely. The rate of hydrolysis slowed down when the DP reached around 40, and the pool of cello-oligomers appeared at the incubation of 35 days. Then, the mono-disperse cello-oligomers were recovered from the pool of cello-oligomers by fractionation based on the solubility difference.

show abstract

Solvent-Assisted Fractionation of Oligomeric Cellulose and Reversible Transformation of Cellulose II and IV

Cited by 7 publications

References 29 publications

Vapour-induced phase transformation in ultrathin cellulose films

Vapour-induced phase transformation in ultrathin cellulose films

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

Quantitative analysis of the formation of monodisperse cello-oligomers obtained by phosphoric acid hydrolysis

Contact Info

Product

Resources

About