Degradation kinetics and molecular structure development of hydroxyethyl cellulose under the solid state mechanochemical treatment

Chen, Rong; Yi, Chuanbin; Wu, Hong; Guo, Shaoyun

doi:10.1016/j.carbpol.2010.02.012

Cited by 46 publications

(18 citation statements)

References 35 publications

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“…During the mechanochemical process, the aspect ratio of cellulose fibers is reduced due to the strong shearing forces [31]. Besides, the molecular weight of the milled matter can be degraded, which worsens its mechanical properties [39,40]. However, our results did reveal positive effects of mechanochemical treatment.…”

Section: Morphological Observation On the Fractured Surface Of Composcontrasting

confidence: 58%

Effective dispersion and crosslinking in PVA/cellulose fiber biocomposites via solid-state mechanochemistry

Niu

Zhang

et al. 2015

International Journal of Biological Macromolecules

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Section: Morphological Observation On the Fractured Surface Of Composcontrasting

confidence: 58%

Effective dispersion and crosslinking in PVA/cellulose fiber biocomposites via solid-state mechanochemistry

Niu

Zhang

et al. 2015

International Journal of Biological Macromolecules

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“…XRD patterns of GO, HEC, CS and the rGO-CS-HEC nanohybrid are investigated as well. As it is depicted in Fig.2b, HEC shows a sharp peak at 2θ =20.8 o which is characteristic peak of its cellulosic backbone (Chen et al, 2010) and a slight shoulder at 2θ =40 o which shows the presence of microcrystalline parts in its structure. Chitosan also shows a sharp peak at 2θ =19.4 o related to its backbone and two small peaks at 2θ =10 o and 14 o and a broad shoulder around 2θ =40 o which shows the presence of different crystalline types in the structure of chitosan.…”

Section: 1characterization Of Rgo-cs-hec Nanohybridmentioning

confidence: 76%

Introducing a highly dispersed reduced graphene oxide nano-biohybrid employing chitosan/hydroxyethyl cellulose for controlled drug delivery

Mianehrow

Afshari

Mazinani

et al. 2016

International Journal of Pharmaceutics

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In this research, an attempt was made to stabilize reduced graphene oxide (rGO) in all pH ranges, incorporating both chitosan (CS) and hydroxyethyl cellulose (HEC) to make a proper drug carrier with suitable stability and drug release behaviour. The stability of rGO-CS-HEC nanohybrid was assessed using field emission scanning electron microscopy (FE-SEM), ultraviolet-visible spectroscopy (UV-Vis) and Zeta potential measurements. Results depicted that the novel synthesized nanohybrid was stable in all pH ranges, due to the utilization of HEC, while without incorporation of this material, the rGO-CS nanohybrid aggregated at neutral and alkaline media, due to the ionic nature of chitosan. In addition, drug loading and release behaviour of folic acid (FA), as a model drug, was investigated to assess the role of chitosan on the release behaviour of FA from the rGO-CS-HEC nanohybrid in comparison with rGO-HEC and rGO-CS nanohybrids. It was proved that the resultant nanohybrid could release nearly 27% more FA than the rGO-HEC nanohybrid and only 9% lower than the rGO-CS nanohybrid during 120h. Moreover, the biocompatibility of the resultant nanohybrid was also checked to introduce the novel rGO-CS-HEC nanohybrid as a suitable candidate for drug delivery application.

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“…As a result, there is the generation of many metastable active sites, which help the polysaccharides to react with other reagents. This innovative technique is utilized to modify morphological and structural features of the polysaccharides, such as cellulose, starch, and lignocelluloses, leading to improvements in their physicochemical characteristics [102][103][104]. For example, Shi et al [101] utilized mechanochemical processes to phosphorylate and to make more soluble β-glucan extracted from brewer's yeast, Saccharomyces cerevisiae.…”

Section: Mechanical Processingmentioning

confidence: 99%

Structural Features, Modification, and Functionalities of Beta-Glucan

Kaur

Sharma

et al. 2019

Fibers

127

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Β-glucan is a strongly hydrophilic non-starchy polysaccharide, which, when incorporated in food, is renowned for its ability to alter functional characteristics such as viscosity, rheology, texture, and sensory properties of the food product. The functional properties of β-glucans are directly linked to their origin/source, molecular weight, and structural features. The molecular weight and structural/conformational features are in turn influenced by method of extraction and modification of the β-glucan. For example, whereas physical modification techniques influence only the spatial structures, modification by chemical agents, enzyme hydrolysis, mechanical treatment, and irradiation affect both spatial conformation and primary structures of β-glucan. Consequently, β-glucan can be modified (via one or more of the aforementioned techniques) into forms that have desired morphological, rheological, and (bio)functional properties. This review describes how various modification techniques affect the structure, properties, and applications of β-glucans in the food industry.

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Degradation kinetics and molecular structure development of hydroxyethyl cellulose under the solid state mechanochemical treatment

Cited by 46 publications

References 35 publications

Effective dispersion and crosslinking in PVA/cellulose fiber biocomposites via solid-state mechanochemistry

Effective dispersion and crosslinking in PVA/cellulose fiber biocomposites via solid-state mechanochemistry

Introducing a highly dispersed reduced graphene oxide nano-biohybrid employing chitosan/hydroxyethyl cellulose for controlled drug delivery

Structural Features, Modification, and Functionalities of Beta-Glucan

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