Results 91 to 100 of about 350,009 (281)

Influence of water on localized and delocalized molecular mobility of cellulose [PDF]

open access: yes, 2007
The influence of hydration on cellulose molecular mobility is investigated by two dielectric methods at different molecular scale. The mobility of side groups, assigned to c mode, for dried cellulose increases.
Boudet, Alain-Michel   +4 more
core   +2 more sources

A Simple Regeneration Process Using a CO2‐Switchable‐Polarity Solvent for Cellulose Hydrogels

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The effect of transformation of the anion chemical structure on cellulose solubility by flowing CO2 gas into aqueous pyrrolidinium hydroxide solutions was investigated. The changes in anion structure allowed for the modulation of cellulose solubility in aqueous pyrrolidinium hydroxide solutions, thus establishing a simple and safe cellulose ...
Arata Matsui   +5 more
wiley   +1 more source

Entropy‐Stabilized Pd/HEO Bifunctional Catalyst for Selective Aqueous‐Phase Hydrogenolysis of Cellulose to Ethylene Glycol

open access: yesEcoEnergy, EarlyView.
An entropy‐stabilized Pd/HEO catalyst integrates Lewis acid and hydrogenation sites within a robust oxide–metal interface, enabling efficient and selective conversion of cellulose to ethylene glycol (68.3%) in water. ABSTRACT The selective conversion of cellulose into ethylene glycol (EG) under aqueous conditions is an attractive yet challenging route ...
Dandan Wang   +6 more
wiley   +1 more source

Modifications of microcrystalline cellulose (MCC), nanofibrillated cellulose (NFC), and nanocrystalline cellulose (NCC) for antimicrobial and wound healing applications

open access: yesE-Polymers, 2019
Recently, great attention has been paid to nano-composites of cellulose, due to their unique structure as a most abundant natural polymer with having exceptional properties such as renewable, biodegradable and high specific tensile strength, aspect ratio,
Mehran Alavi
semanticscholar   +1 more source

Formulation of Alpha Tocopherol Acetate as a Powder Dosage Form by Adsorption

open access: yesIraqi Journal of Pharmaceutical Sciences, 2017
Alpha-tocopherol acetate is one of the most important vitamin E derivatives,that were used  as antioxidants. Adsorbents like kaolin, magnesium carbonate, and microcrystalline cellulose were used successfully to incorporate oily alpha-tocopherol acetate ...
Zena A. Abdulhameed, Yehia I. Khalil
doaj   +3 more sources

Interactions between Ibuprofen and Silicified-MCC: Characterization, Drug Release and Modeling Approaches

open access: yesActa Chimica Slovenica, 2019
Analysis of the binding interactions of ibuprofen and silicified-microcrystalline cellulose (SMCC) has been undertaken. Co-processing of ibuprofen with SMCC was carried out by solid state ball milling, and aqueous state equilibration followed by freeze ...
Rudra Narayan Sahoo   +6 more
doaj   +1 more source

Enhancing Plateau Capacity of Binder‐Free and Self‐Supported Napkin‐Based Hard Carbon Anodes for Sodium‐Ion Batteries Via a Pre‐Oxidation Modulation Strategy

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Precise regulation of preoxidation time and carbonization temperature in biomass napkin‐derived hard carbon generates abundant closed pores and ultramicropores, significantly enhancing the capacity in the low‐potential plateau region (the high plateau capacity of 266 mAh g−1) and thereby achieving highly reversible sodium‐ion storage (395 mAh g−1 at 30 
Haoran Wang   +4 more
wiley   +1 more source

Comparison of ibuprofen release from minitablets and capsules containing ibuprofen: β-Cyclodextrin complex [PDF]

open access: yes, 2010
NOTICE: this is the author’s version of a work that was accepted for publication in European Journal of Pharmaceutics and Biopharmaceutics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting ...
Amidon   +31 more
core   +1 more source

Influence of Water on the Structure and Dielectric Properties of the Microcrystalline and Nano-Cellulose

open access: yesNanoscale Research Letters, 2017
Influence of water in the different states on a structure and dielectric properties of microcrystalline cellulose were studied by of X-ray, thermogravimetry, and dielectric spectroscopy.
Kostiantyn M. Kovalov   +5 more
doaj   +1 more source

A Sulfur Fixation Strategy via Magnesium Oxide for Constructing High‐Rate Hard Carbon Anodes in Sodium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A sulfur fixation strategy via magnesium oxide is proposed to address sulfur dissolution in hard carbon anodes for sodium‐ion batteries. This method focuses on modifying the morphological structure of the hard carbon material, leading to significantly improved electrochemical performance.
Zebin Song   +5 more
wiley   +1 more source

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