Preparation and radiopaque properties of chitosan/BaSO4 composite fibers
Preparation and radiopaque properties of chitosan/BaSO4 composite fibers
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DOI：
10.1007/s12221-013-0292-3
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发表时间：
2013-03
影响因子：
2.5
通讯作者：
Hyun-Chel Kim;Y. Chung
中科院分区：
文献类型：
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作者：
Hyun-Chel Kim;Y. Chung
甲壳素和壳聚糖作为有机/无机复合材料的基质已被广泛研究。钡是一种不透射线的无机材料，通过将壳聚糖与BaSO4共混，可以使壳聚糖具有不透射线的性能。将过滤脱气后的壳聚糖/BaCl2溶液通过齿轮泵通过喷嘴挤出至NaOH和Na2SO4凝固浴中。 BaCl2和Na2SO4在凝固浴中反应合成BaSO4，同时酸性壳聚糖溶液也凝固。 XRD中，壳聚糖纤维中引入BaSO4降低了壳聚糖纤维的固有峰。在血管造影观察中，壳聚糖/BaSO4杂化纤维表现出清晰的对比图像，并且随着BaSO4含量的增加而变得清晰。
Chitin and chitosan have been extensively investigated as a matrix of organic/inorganic composite. Barium, one of the radiopaque inorganic materials, can provide chitosan with radiopaque property by blending of chitosan and BaSO4. The filtered and deaerated chitosan/BaCl2solutions were extruded into NaOH and Na2SO4coagulation bath through a nozzle by gear pump. BaSO4was synthesized by the reaction between BaCl2and Na2SO4in the coagulation bath, in which acidic chitosan solution was also solidified at the same time. In XRD, the introduction of BaSO4into chitosan fibers reduced the inherent peak of chitosan fibers. In angiographic observation, chitosan/BaSO4hybrid fibers exhibited the clear contrast images which become clear with an increase in BaSO4content.