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Showing 1 to 12 of 58 entries
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A novel efficient β-glucanase from a paddy soil microbial metagenome with versatile activities.

Biotechnology for biofuels

Zhou Y, Wang X, Wei W, Xu J, Wang W, Xie Z, Zhang Z, Jiang H, Wang Q, Wei C.
PMID: 26877766
Biotechnol Biofuels. 2016 Feb 13;9:36. doi: 10.1186/s13068-016-0449-6. eCollection 2016.

BACKGROUND: Cellulose, an abundant and renewable polysaccharides, constitutes the largest resource for bioconversion of biofuels. Plant polysaccharides hydrolysis is catalyzed by cellulases, which include endoglucanases, exoglucanases, and β-glucosidases. Converting cellulose and hemicellulose to short chains of oligosaccharides by endo-/exoglucanases...

Adsorption pattern of mixtures of trimethylammonium-modified hydroxyethylcellulose and sodium dodecyl sulfate at solid-liquid interfaces.

Langmuir : the ACS journal of surfaces and colloids

Zimin D, Craig VS, Kunz W.
PMID: 15835685
Langmuir. 2004 Mar 16;20(6):2282-91. doi: 10.1021/la035112t.

We studied mixtures of aqueous solutions of cationic hydroxyethylcellulose JR400 polymer and anionic sodium dodecyl sulfate using dynamic light scattering and atomic force microscopy (AFM). A ternary phase diagram was established showing three interesting realms of the polymer-surfactant-water mixture:...

Biochemical Characterization of a Protease Involved in the Processing of a Streptomyces reticuli Cellulase (Avicelase).

Applied and environmental microbiology

Moormann M, Schlochtermeier A, Schrempf H.
PMID: 16348937
Appl Environ Microbiol. 1993 May;59(5):1573-8. doi: 10.1128/aem.59.5.1573-1578.1993.

A 36-kDa protease from Streptomyces reticuli had recently been shown to be responsible for the in vivo and in vitro processing of the 82-kDa cellulase (Avicelase) Cel-1 from S. reticuli to a 42-kDa truncated enzyme. It was induced only...

Effects of Physicochemical Factors on the Adhesion to Cellulose Avicel of the Ruminal Bacteria Ruminococcus flavefaciens and Fibrobacter succinogenes subsp. succinogenes.

Applied and environmental microbiology

Roger V, Fonty G, Komisarczuk-Bony S, Gouet P.
PMID: 16348315
Appl Environ Microbiol. 1990 Oct;56(10):3081-7. doi: 10.1128/aem.56.10.3081-3087.1990.

Ruminococcus flavefaciens adhered instantly to cellulose, while Fibrobacter succinogenes had the highest percentage of adherent cells after about 25 min of contact between bacteria and cellulose. Adhesion of R. flavefaciens was unaffected by high concentrations of sugars (5%), temperature,...

Hydroxyethylcellulose used as an eco-friendly inhibitor for 1018 c-steel corrosion in 3.5% NaCl solution.

Carbohydrate polymers

El-Haddad MN.
PMID: 25129787
Carbohydr Polym. 2014 Nov 04;112:595-602. doi: 10.1016/j.carbpol.2014.06.032. Epub 2014 Jun 19.

The inhibition effect of hydroxyethylcellulose (HEC) on 1018 c-steel corrosion in 3.5% NaCl solution was investigated by using potentiodynamic polarization, electrochemical frequency modulation (EFM) and electrochemical impedance spectroscopy (EIS) techniques. The potentiodynamic polarization studies suggested that HEC acts as...

Gravity-Driven Thin Film Flow of an Ellis Fluid.

Journal of non-Newtonian fluid mechanics

Kheyfets VO, Kieweg SL.
PMID: 25309029
J Nonnewton Fluid Mech. 2013 Dec 01;202:88-98. doi: 10.1016/j.jnnfm.2013.09.010.

The thin film lubrication approximation has been studied extensively for moving contact lines of Newtonian fluids. However, many industrial and biological applications of the thin film equation involve shear-thinning fluids, which often also exhibit a Newtonian plateau at low...

Synthesis and characterization of superabsorbent hydrogels based on hydroxyethylcellulose and acrylic acid.

Carbohydrate polymers

Fekete T, Borsa J, Takács E, Wojnárovits L.
PMID: 28385236
Carbohydr Polym. 2017 Jun 15;166:300-308. doi: 10.1016/j.carbpol.2017.02.108. Epub 2017 Mar 01.

Hydroxyethylcellulose (HEC)/acrylic acid (AAc) copolymer gels with superabsorbent properties were synthesized from aqueous solutions by radiation-initiated crosslinking. The effect of the acrylic acid content on gel properties was determined at different synthesis conditions. The partial replacement of the cellulose...

In Vitro and In Silico Analyses of Nicotine Release from a Gelisphere-Loaded Compressed Polymeric Matrix for Potential Parkinson's Disease Interventions.

Pharmaceutics

Kumar P, Choonara YE, du Toit LC, Singh N, Pillay V.
PMID: 30445765
Pharmaceutics. 2018 Nov 15;10(4). doi: 10.3390/pharmaceutics10040233.

This study aimed to develop a prolonged-release device for the potential site-specific delivery of a neuroprotective agent (nicotine). The device was formulated as a novel reinforced crosslinked composite polymeric system with the potential for intrastriatal implantation in Parkinson's disease...

Stretchable, self-healing, transient macromolecular elastomeric gel for wearable electronics.

Microsystems & nanoengineering

Hao M, Li L, Wang S, Sun F, Bai Y, Cao Z, Qu C, Zhang T.
PMID: 31057936
Microsyst Nanoeng. 2019 Mar 11;5:9. doi: 10.1038/s41378-019-0047-4. eCollection 2019.

Flexible and stretchable electronics are emerging in mainstream technologies and represent promising directions for future lifestyles. Multifunctional stretchable materials with a self-healing ability to resist mechanical damage are highly desirable but remain challenging to create. Here, we report a...

Adsorption and Exchange Dynamics in Aging Hydroxyethylcellulose Layers on Silica.

Journal of colloid and interface science

Mubarekyan E, Santore MM.
PMID: 10873318
J Colloid Interface Sci. 2000 Jul 15;227(2):334-344. doi: 10.1006/jcis.2000.6899.

The adsorption kinetics of hydroxyethylcellulose (HEC) on silica and relaxations in adsorbed HEC layers were probed using total internal reflectance fluorescence and near-Brewster reflectivity. Like many random-coil polymers, HEC was found to adsorb at the transport-limited rate. Relaxations occurred...

Salt tolerance of an aqueous solution of a novel amphiphilic polysaccharide derivative.

Langmuir : the ACS journal of surfaces and colloids

Kawakami K, Ihara T, Nishioka T, Kitsuki T, Suzuki Y.
PMID: 16548598
Langmuir. 2006 Mar 28;22(7):3337-43. doi: 10.1021/la052877n.

An aqueous solution of an amphiphilic polysaccharide derivative, hydrophobically (stearyl alkyl group) and hydrophilically (sulfonic-acid salt group) modified hydroxyethylcellulose (HHM-HEC), showed increased viscosity, elasticity, and thixotropic properties in response to the addition of monovalent and divalent salts. Furthermore, the...

Characterization of interactions in aqueous solutions of hydroxyethylcellulose and its hydrophobically modified analogue in the presence of a cyclodextrin derivative.

The journal of physical chemistry. B

Beheshti N, Bu H, Zhu K, Kjøniksen AL, Knudsen KD, Pamies R, Hernandez Cifre JG, García de la Torre J, Nyström B.
PMID: 16570960
J Phys Chem B. 2006 Apr 06;110(13):6601-8. doi: 10.1021/jp056828v.

The formation of associative networks in semidilute aqueous solutions of hydrophobically modified hydroxyethylcellulose (HM-HEC) is dependent on intermolecular hydrophobic interactions. Addition of hydroxypropyl-beta-cyclodextrin (HP-beta-CD) monomers to the system provides decoupling of these associations via inclusion complex formation with the...

Showing 1 to 12 of 58 entries