Sustainable High Yield Route to Cellulose Nanocrystals from Bacterial Cellulose

Timo Pääkkönen, Panagiotis Spiliopoulos, Nonappa, Katri S. Kontturi, Paavo Penttilä, Mira Viljanen, Kirsi Svedström, Eero Kontturi (Corresponding Author)

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)


HCl gas hydrolysis of a bacterial cellulose (BC) aerogel followed by 2,2,6,6-tetramethylpiperidine-1-oxyl radical-mediated oxidation was used to produce hydrolyzed BC with carboxylate groups, which subsequently disintegrated into a stable dispersion of cellulose nanocrystals (CNCs). The degree of polymerization was successfully reduced from 2160 to 220 with a CNC yield of >80%.

Original languageEnglish
Pages (from-to)14384-14388
JournalACS Sustainable Chemistry & Engineering
Issue number17
Publication statusPublished - 3 Sep 2019
MoE publication typeA1 Journal article-refereed


  • Colloidal dispersion
  • Gaseous acid
  • Hydrolysis
  • Nanocellulose
  • TEMPO-oxidation

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