Knöller, Andrea ; Widenmeyer, Marc ; Bill, Joachim ; Burghard, Zaklina (2020)
Fast-Growing Bacterial Cellulose with Outstanding Mechanical Properties via Cross-Linking by Multivalent Ions.
In: Materials, 13 (12)
doi: 10.3390/ma13122838
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Bacterial cellulose is an organic product of certain bacterias’ metabolism. It differs from plant cellulose by exhibiting a high strength and purity, making it especially interesting for flexible electronics, membranes for water purification, tissue engineering for humans or even as artificial skin and ligaments for robotic devices. However, bacterial cellulose’s naturally slow growth rate has limited its large-scale applicability to date. Titanium (IV) bis-(ammonium lactato) dihydroxide is shown to be a powerful tool to boost the growth rate of bacterial cellulose production by more than one order of magnitude and that it simultaneously serves as a precursor for the Ti4+-coordinated cross-linking of the fibers during membrane formation. The latter results in an almost two-fold increase in Young’s modulus (~18.59 GPa), a more than three-fold increase in tensile strength (~436.70 MPa) and even a four-fold increase in toughness (~6.81 MJ m−³), as compared to the pure bacterial cellulose membranes.

Typ des Eintrags:	Artikel
Erschienen:	2020
Autor(en):	Knöller, Andrea ; Widenmeyer, Marc ; Bill, Joachim ; Burghard, Zaklina
Art des Eintrags:	Bibliographie
Titel:	Fast-Growing Bacterial Cellulose with Outstanding Mechanical Properties via Cross-Linking by Multivalent Ions
Sprache:	Englisch
Publikationsjahr:	24 Juni 2020
Titel der Zeitschrift, Zeitung oder Schriftenreihe:	Materials
Jahrgang/Volume einer Zeitschrift:	13
(Heft-)Nummer:	12
DOI:	10.3390/ma13122838
Zugehörige Links:	TUprints Zweitveröffentlichung
Kurzbeschreibung (Abstract):	Bacterial cellulose is an organic product of certain bacterias’ metabolism. It differs from plant cellulose by exhibiting a high strength and purity, making it especially interesting for flexible electronics, membranes for water purification, tissue engineering for humans or even as artificial skin and ligaments for robotic devices. However, bacterial cellulose’s naturally slow growth rate has limited its large-scale applicability to date. Titanium (IV) bis-(ammonium lactato) dihydroxide is shown to be a powerful tool to boost the growth rate of bacterial cellulose production by more than one order of magnitude and that it simultaneously serves as a precursor for the Ti4+-coordinated cross-linking of the fibers during membrane formation. The latter results in an almost two-fold increase in Young’s modulus (~18.59 GPa), a more than three-fold increase in tensile strength (~436.70 MPa) and even a four-fold increase in toughness (~6.81 MJ m−³), as compared to the pure bacterial cellulose membranes.
Freie Schlagworte:	kombucha, bacterial cellulose, membranes, cross-linking, mechanical properties
Fachbereich(e)/-gebiet(e):	11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Werkstofftechnik und Ressourcenmanagement
Hinterlegungsdatum:	26 Jun 2020 06:15
Letzte Änderung:	21 Nov 2023 07:35
PPN:
Projekte:	This research was funded by KSB Stifttung, grant number 1.1353.2019.1 and the APC was funded by the Open Access Publishing Fund of the University of Stuttgart.
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• Fast-Growing Bacterial Cellulose with Outstanding Mechanical Properties via Cross-Linking by Multivalent Ions. (deposited 20 Nov 2023 15:14)
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