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Nondestructive, real-time determination and visualization of cellulose, hemicellulose and lignin by luminescent oligothiophenes
Karolinska Institute, Sweden.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Kemi. Linköpings universitet, Tekniska fakulteten.
Karolinska Institute, Sweden.
Karolinska Institute, Sweden.
Vise andre og tillknytning
2016 (engelsk)Inngår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 6, artikkel-id 35578Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Enabling technologies for efficient use of the bio-based feedstock are crucial to the replacement of oil-based products. We investigated the feasibility of luminescent conjugated oligothiophenes (LCOs) for non-destructive, rapid detection and quality assessment of lignocellulosic components in complex biomass matrices. A cationic pentameric oligothiophene denoted p-HTEA (pentamer hydrogen thiophene ethyl amine) showed unique binding affinities to cellulose, lignin, hemicelluloses, and cellulose nanofibrils in crystal, liquid and paper form. We exploited this finding using spectrofluorometric methods and fluorescence confocal laser scanning microscopy, for sensitive, simultaneous determination of the structural and compositional complexities of native lignocellulosic biomass. With exceptional photostability, p-HTEA is also demonstrated as a dynamic sensor for real-time monitoring of enzymatic cellulose degradation in cellulolysis. These results demonstrate the use of p-HTEA as a non-destructive tool for the determination of cellulose, hemicellulose and lignin in complex biomass matrices, thereby aiding in the optimization of biomass-converting technologies.

sted, utgiver, år, opplag, sider
NATURE PUBLISHING GROUP , 2016. Vol. 6, artikkel-id 35578
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URN: urn:nbn:se:liu:diva-132668DOI: 10.1038/srep35578ISI: 000386121700002PubMedID: 27759105OAI: oai:DiVA.org:liu-132668DiVA, id: diva2:1048327
Merknad

Funding Agencies|Knut and Alice Wallenberg Foundation; Carl Bennet AB; Erling-Persson Family Foundation; ERC Starting Independent Researcher Grant from the European Research Council

Tilgjengelig fra: 2016-11-21 Laget: 2016-11-18 Sist oppdatert: 2017-11-29

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