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

    33 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 Sept 2019
    MoE publication typeA1 Journal article-refereed


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


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