Fabrication and characterisation of cellulose nanocrystals from microcrystalline cellulose by esterification and ultrasound treatment

Micro & nano letters

article

Longwei Jiang¹  Jingde Yang¹  Qian Wang¹  Lili Ren¹  Jiang Zhou¹ 

[1] Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University

关键词: nanoparticles;    crystal structure;    nanofabrication;    nanostructured materials;    X-ray diffraction;    scanning electron microscopy;    Fourier transform infrared spectra;    ultrasonic effects;    organic compounds;    esterification;    ultrasound treatment;    needle-shaped cellulose nanocrystals;    dynamic light scattering;    microcrystalline cellulose;    Fourier transform infrared spectra;    scanning electron microscopy;    X-ray diffraction;    degree of substitution;    crystal structure;    size distribution;   

DOI  :  10.1049/mnl.2018.5043

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Otitis media with effusion (OME) is a common disease especially among young children (before school age) and it is one of the common causes of acquired hearing loss in childhood. Pediatric patients with OME are usually undernourished. The purpose of this study is to determine whether the serum levels of trace elements (zinc, copper, magnesium, iron) have a role in the development of OME in children. This study carried out on 55 children and subdivided them into two groups. Group 1 (patient group) consist of 30 children suffering from OME and group 2 (control group) included 25 apparently healthy children. Serum levels of zinc, copper, magnesium and iron were measured for both groups. Comparison the results between the two groups showed that group 1(patients) had significantly lower serum zinc, copper, and iron levels than group2 (P 0.05). This study postulated that serum levels of zinc, copper, and iron may have a role in the development of OME in children. While, serum magnesium may not have effect on the development of OME in children.

【 授权许可】

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