Carbon nanotubes tuned foam structures as novel nanostructured biocarriers for lignocellulose hydrolysis

Jue Lu, Rankothge Ranjith Weerasiri, Ilsoon Lee

Research output: Contribution to journalArticle

  • 5 Citations

Abstract

The use of immobilized enzymes during saccharification of lignocelluloses enables the continuous process of enzymatic hydrolysis and repeatable use of enzyme, resulting in reduced operational cost. Novel nano-biocarriers were developed by layer-by-layer deposition of carbon nanotube (CNT) on the foam structures, and their efficiency for enzyme immobilization was demonstrated with cellulase and β-glucosidase. A three-fold enhancement was achieved in the activity of cellulase immobilized on CNT coated polyurethane foam. In addition, both cellulase and β-glucosidase immobilized on the CNT-foam showed much better storage stability and operational stability than the ones immobilized on the commercial biocarrier (Celite), which is critical for a continuous operation. CNT coated monolith was also developed as a biocarrier, offering high surface area and geometric stability. These nano-biocarriers are promising candidates for the efficient saccharification of biomass and to reduce carbon footprint and cost of the equipment.

LanguageEnglish (US)
Pages181-188
Number of pages8
JournalBiotechnology Letters
Volume35
Issue number2
DOIs
StatePublished - 2013

Profile

Carbon Nanotubes
Cellulase
Hydrolysis
beta-Glucosidase
Carbon Footprint
Diatomaceous Earth
Costs and Cost Analysis
Immobilized Enzymes
Enzymes
Immobilization
Biomass
Equipment and Supplies
lignocellulose

Keywords

  • Carbon nanotubes
  • Foam
  • Immobilization
  • Lignocellulose
  • Nano-biocarriers

ASJC Scopus subject areas

  • Biotechnology

Cite this

Carbon nanotubes tuned foam structures as novel nanostructured biocarriers for lignocellulose hydrolysis. / Lu, Jue; Weerasiri, Rankothge Ranjith; Lee, Ilsoon.

In: Biotechnology Letters, Vol. 35, No. 2, 2013, p. 181-188.

Research output: Contribution to journalArticle

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