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M Keshavarz et al.
Pharmaceutical development and technology, 19(8), 952-959 (2013-10-29)
The rheological and drug release behavior of biopolymer nanocomposite gels based on the cellulose derivatives, formulated as the bioadhesive drug delivery platforms, were investigated. The bioadhesive gel is composed of the microcrystalline cellulose, sodium carboxymethyl cellulose and phosphate buffered saline
Luiz G P Martins et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(44), 17762-17767 (2013-10-16)
In this paper we explore the direct transfer via lamination of chemical vapor deposition graphene onto different flexible substrates. The transfer method investigated here is fast, simple, and does not require an intermediate transfer membrane, such as polymethylmethacrylate, which needs
Roman Brunecky et al.
Science (New York, N.Y.), 342(6165), 1513-1516 (2013-12-21)
Most fungi and bacteria degrade plant cell walls by secreting free, complementary enzymes that hydrolyze cellulose; however, some bacteria use large enzymatic assemblies called cellulosomes, which recruit complementary enzymes to protein scaffolds. The thermophilic bacterium Caldicellulosiruptor bescii uses an intermediate
Yang Hu et al.
Wei sheng wu xue bao = Acta microbiologica Sinica, 53(4), 354-362 (2013-07-19)
Use of renewable plant biomass is an active area in current biotechnology research. This report explores the cellulose-degradation system and the factors affecting cellulase gene expression in Chaetomium globosum NK102. In the sequenced genome, we identified 10 cellulase genes by
Diego O Serra et al.
Journal of bacteriology, 195(24), 5540-5554 (2013-10-08)
Morphological form in multicellular aggregates emerges from the interplay of genetic constitution and environmental signals. Bacterial macrocolony biofilms, which form intricate three-dimensional structures, such as large and often radially oriented ridges, concentric rings, and elaborate wrinkles, provide a unique opportunity
Nathalie Lavoine et al.
Carbohydrate polymers, 90(2), 735-764 (2012-07-31)
Interest in microfibrillated cellulose (MFC) has been increasing exponentially. During the last decade, this bio-based nanomaterial was essentially used in nanocomposites for its reinforcement property. Its nano-scale dimensions and its ability to form a strong entangled nanoporous network, however, have
Bona Kim et al.
Journal of nanoscience and nanotechnology, 13(11), 7454-7458 (2013-11-20)
Silver nanowires have unique electrical, thermal and optical properties, which support their potential application in numerous fields including catalysis, electronics, optoelectronics, sensing, and surface-enhanced spectroscopy. Especially, their application such as catalysts for alkaline fuel cells (AFCs) have attracted much interest
Jerome M Fox et al.
Nature chemical biology, 9(6), 356-361 (2013-04-09)
The mechanisms of enzyme activity on solid substrates are not well understood. Unlike enzyme catalysis in aqueous solutions, enzyme activity on surfaces is complicated by adsorption steps and structural heterogeneities that make enzyme-substrate interactions difficult to characterize. Cellulase enzymes, which
Nasrullah Shah et al.
Carbohydrate polymers, 98(2), 1585-1598 (2013-09-24)
Bacterial cellulose (BC) has received substantial interest owing to its unique structural features and impressive physico-mechanical properties. BC has a variety of applications in biomedical fields, including use as biomaterial for artificial skin, artificial blood vessels, vascular grafts, scaffolds for
Aiqin Wang et al.
Accounts of chemical research, 46(7), 1377-1386 (2013-02-21)
With diminishing fossil resources and increasing concerns about environmental issues, searching for alternative fuels has gained interest in recent years. Cellulose, as the most abundant nonfood biomass on earth, is a promising renewable feedstock for production of fuels and chemicals.
Microbiology. No barriers to cellulose breakdown.
Alex Berlin
Science (New York, N.Y.), 342(6165), 1454-1456 (2013-12-21)
Nicolaj Cruys-Bagger et al.
Biochemistry, 52(49), 8938-8948 (2013-11-16)
Cellobiohydrolases are exoacting, processive enzymes that effectively hydrolyze crystalline cellulose. They have attracted considerable interest because of their role in both natural carbon cycling and industrial enzyme cocktails used for the deconstruction of cellulosic biomass, but many mechanistic and regulatory
Okako Omadjela et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(44), 17856-17861 (2013-10-16)
Cellulose is a linear extracellular polysaccharide. It is synthesized by membrane-embedded glycosyltransferases that processively polymerize UDP-activated glucose. Polymer synthesis is coupled to membrane translocation through a channel formed by the cellulose synthase. Although eukaryotic cellulose synthases function in macromolecular complexes
Functional cellulose beads: preparation, characterization, and applications.
Martin Gericke et al.
Chemical reviews, 113(7), 4812-4836 (2013-04-02)
S Anitha et al.
Carbohydrate polymers, 97(2), 856-863 (2013-09-26)
In this report, ZnO nanoparticles embedded cellulose acetate (CA) fibrous membrane with multifunctional properties have been prepared through electrospinning method. The morphology of the electrospun composite membrane was analyzed by scanning electron microscope (SEM). It was found that the polymer
Haruka Horino et al.
International journal of systematic and evolutionary microbiology, 64(Pt 4), 1296-1303 (2014-01-16)
An obligately anaerobic bacterial strain designated T-1-35(T) was isolated as a dominant cultivable cellulose-degrading bacterium from soil of a Japanese rice field as an anaerobic filter-paper degrader. Cells of strain T-1-35(T) stained Gram-positive and were non-spore-forming rods with rounded ends
Sanna Hokkanen et al.
Environmental technology, 35(17-20), 2334-2346 (2014-08-26)
In the present study, microfibrillated cellulose (MFC) was modified by aminopropyltriethoxysilane (APS), hydroxy-carbonated apatite (HAP), or epoxy in order to produce novel nanostructured adsorbents for the removal of hydrogen sulphide (H2S) from the aqueous solutions. Structural properties of the modified
Inka Vanwonterghem et al.
The ISME journal, 8(10), 2015-2028 (2014-04-18)
A replicate long-term experiment was conducted using anaerobic digestion (AD) as a model process to determine the relative role of niche and neutral theory on microbial community assembly, and to link community dynamics to system performance. AD is performed by
Sheh-Hong Lim et al.
Pakistan journal of biological sciences : PJBS, 16(18), 920-926 (2014-02-08)
The aim of this study was to develop an economical bioprocess to produce the fermentable sugars at laboratory scales Using Oil Palm Frond (OPF) as substrate in Solid State Fermentation (SSF). OPF waste generated by oil palm plantations is a
Hosseinali Tabandeh et al.
Pakistan journal of pharmaceutical sciences, 27(3), 495-503 (2014-05-09)
This study was performed to achieve sustained-release Ibuprofen matrix tablets with a zero-order release kinetic while most of the previous formulations have shown Higuchi release kinetic. Considering the results from previous studies, ethyl cellulose, Carbopol 934P, Carbopol 974P, and Pemulen
J Chan
Journal of microscopy, 247(1), 23-32 (2011-12-17)
In this review, I ask the question of what is the relationship between growth and the orientations of microtubules and cellulose microfibrils in plant cells. This should be a relatively simple question to answer considering that text books commonly describe
Kevin C-Y Lee et al.
The ISME journal, 8(7), 1522-1533 (2014-01-31)
Most of the lineages of bacteria have remained unknown beyond environmental surveys using molecular markers. Until the recent characterisation of several strains, the phylum Armatimonadetes (formerly known as 'candidate division OP10') was a dominant and globally-distributed lineage within this 'uncultured
Eshchar Mizrachi et al.
The New phytologist, 194(1), 54-62 (2012-04-05)
Fast-growing, short-rotation forest trees, such as Populus and Eucalyptus, produce large amounts of cellulose-rich biomass that could be utilized for bioenergy and biopolymer production. Major obstacles need to be overcome before the deployment of these genera as energy crops, including
T P Chepchak et al.
Mikrobiolohichnyi zhurnal (Kiev, Ukraine : 1993), 75(6), 51-58 (2014-01-24)
The production of cellulolytic enzymes by Fenellia flavipes and Fusarium oxysporum strains in submerged culture with plant residues as carbon source was studied. It was established that the majority of studied strains was able to hydrolyze the filter paper, husk
Rachel A Burton et al.
Current opinion in biotechnology, 26, 79-84 (2014-04-01)
Plant cell walls consist largely of cellulose, non-cellulosic polysaccharides and lignin. Concerted attempts are underway to convert wall polysaccharides from crop plant residues into renewable transport fuels and other valuable products, and to exploit the dietary benefits of cereal grain
Jitka Muzíková et al.
Acta poloniae pharmaceutica, 70(6), 1087-1096 (2014-01-05)
The study evaluates the micronized poloxamers Lptrol micro127 (poloxamer 407) and Lptrol micro 68 (poloxamer 188) as lubricants in combination with the dry binders microcrystalline cellulose and spray-dried lactose. Magnesium stearate was employed as the comparative lubricant. The parameters under
C Wiegand et al.
Journal of wound care, 22(11), 592-592 (2013-11-15)
To test the binding capacity of a hydrokinetic fiber dressing for PMN elastase, MMP-2 and MMP-9 in vitro, and to determine whether testing of dressing material samples in vitro is sufficient to predict the performance of the whole dressing. In
Patrick Shahgaldian et al.
Chimia, 67(6), 425-426 (2013-08-16)
Cyclodextrins are cyclic oligomers of glucose; they are widely used in a large range of industrial applications because of their molecular inclusion properties. We used cyclodextrins to prepare different libraries of polymers and tested their ability to selectively recognize pharmaceuticals
Nelson Durán et al.
Recent patents on nanotechnology, 6(1), 16-28 (2011-08-31)
This review attempts to visualize the actual impact of nanocellulose-based materials in different areas. A detailed search in recent patent databases on nanocellulose showed the importance of this material, as well as relevant topics concerning its technological preparations to obtain
Anwesha Sarkar et al.
Colloids and surfaces. B, Biointerfaces, 158, 137-146 (2017-07-09)
In this study, we designed emulsions with an oil-water interface consisting of a composite layer of whey protein isolate (WPI, 1wt%) and cellulose nanocrystals (CNCs) (1-3wt%). The hypothesis was that a secondary layer of CNCs at the WPI-stabilized oil-water interface
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