基于天然多糖基质的含锰生物纳米复合材料的形成及顺磁性能

IF 1.2 4区化学 Q4 BIOCHEMISTRY & MOLECULAR BIOLOGY Journal of Carbohydrate Chemistry Pub Date : 2021-01-01 DOI:10.1080/07328303.2021.1990314

Spartak S. Khutsishvili , Tat’yana V. Ganenko , Boris G. Sukhov

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引用次数: 2

摘要

研究了以阿拉伯半乳多糖、硫酸化阿拉伯半乳聚糖和κ-卡拉胶为基料的含锰纳米复合材料的合成、结构特征和顺磁性能。所有化合物都通过物理和化学方法进行了研究，包括电子顺磁共振、透射电子显微镜、红外光谱和原子吸收分析。结果表明，3 ~ 6 nm大小的含锰纳米粒子通过与Mn2+配位稳定在多糖团中，得到的纳米粒子具有复杂的结构组织，自旋浓度约为1020自旋/g，具有较高的EPR活性。所制备的纳米复合材料具有聚集稳定性，并能长期保持其性能。下载:下载高分辨率图片(661KB)下载:下载全尺寸图片

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Formation and paramagnetic properties of manganese-containing bionanocomposites based on natural polysaccharide matrices

Synthesis, structural features, and paramagnetic properties of manganese-containing nanocomposites based on polysaccharides arabinogalactan, sulfated arabinogalactan, and κ-carrageenan have been studied. All compounds have been investigated by physical and chemical methods including electron paramagnetic resonance, transmission electron microscopy, infrared spectroscopy, and atomic absorption analysis. It is shown that manganese-containing nanoparticles of 3–6 nm in size were stabilized in the polysaccharide mass by coordination with Mn²⁺, and the resulting particles have a complex structural organization and are highly EPR active with a spin concentration of about 10²⁰ spin/g. The obtained nanocomposites possess aggregative stability and conserve their properties for a long time.

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来源期刊

Journal of Carbohydrate Chemistry 化学-生化与分子生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

1 months

期刊介绍： The Journal of Carbohydrate Chemistry serves as an international forum for research advances involving the chemistry and biology of carbohydrates. The following aspects are considered to fall within the scope of this journal: -novel synthetic methods involving carbohydrates, oligosaccharides, and glycoconjugates- the use of chemical methods to address aspects of glycobiology- spectroscopic and crystallographic structure studies of carbohydrates- computational and molecular modeling studies- physicochemical studies involving carbohydrates and the chemistry and biochemistry of carbohydrate polymers.