共查询到17条相似文献,搜索用时 31 毫秒
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对医用高分子材料的目前需求作了简要分析,介绍了医用高分子材料的主要类别、用途及其特殊要求,并浅谈了医用高分子材料的发展及展望。 相似文献
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生物医用高分子材料是材料学、化学、生物医学、临床医学等多学科交叉的国际前沿研究领域。淀粉作为天然高分子材料,因其原料来源丰富、生物相容性好、安全无毒、可降解等诸多优点,在生物医学领域显示出了良好的应用前景。本文综述了近年来淀粉及其改性产物在止血材料、药物释放、组织工程支架和细胞培养等生物医用材料领域的进展,并对其在该领域的未来发展进行了展望。 相似文献
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生物医用水凝胶材料的研究进展 总被引:1,自引:0,他引:1
简述了医用水凝胶材料的基本要求,文章主要介绍了生物医用水凝胶材料的优点及研究热点。讨论了水凝胶材料合适的医用范围,预测了医用水凝胶材料的发展方向。 相似文献
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简要介绍了静电纺丝技术的基本原理及其发展历程。从组织工程支架、医用敷料、载药系统方面综述了静电纺丝纳米纤维在生物医用领域的具体应用,总结了这些领域的发展现状,展望了未来我国医用纺织材料的发展方向。指出静电纺丝技术存在可用于电纺的聚合物种类不够多、纺丝速度慢、批量工业化生产还有许多工艺技术需要完善等不足之处,但对于静电纺纳米纤维的微观形貌、直径、力学性能及材料的生物相容性的研究,已取得成效,静电纺丝仍会成为制备医用材料最为广泛的技术之一。 相似文献
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从三个方面介绍了生物医用高分子材料工作情况:(1)三种可降解材料:聚羟基烷酸酯、两亲性聚氨酯弹性体、可注射性水凝胶;(2)利用各种制造了多种复杂形状的组织工程支架;(3)其它医用材料,并对医用支架材料表面进行了改性。 相似文献
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聚乳酸在生物医学领域中的应用 总被引:5,自引:0,他引:5
简要介绍高分子量聚乳酸的合成方法、良好的生物相容性、可吸收性及生物降解性。通过概述聚乳酸在药物释放材料、眼科材料、外科手术缝合线、骨折内固定材料以及组织工程修复等方面的应用,对其在生物医学领域的研究前景作了进一步展望。 相似文献
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Polyvinyl alcohol (PVA)/carboxymethyl cellulose (CMC)/polyethylene glycol (PEG) hydrogel scaffolds are synthesized using cyclic freezing/thawing and subsequent γ-ray irradiation to evaluate the effect of the molecular weights of PEG (200, 400, 1,000, and 2,000) on strength and cell growth behavior of the hydrogels. As the PEG weight increases from 200 to 2,000, the compressive strength and the pore size decreases gradually from 58.0 ± 8.2 kPa to 17.7 ± 6.1 kPa and from 22.7 ± 3.9 μm to 8.5 ± 1.6 μm, respectively. However, the highest swelling rate is obtained for PVA/CMC/PEG400 hydrogels. The irradiated PVA/CMC/PEG400 hydrogels exhibit tailored properties of the swelling rate of 1,148 ± 34.0%, the compressive strength of 42.5 ± 6.6 kPa, the pore size of 14.6 ± 1.9 μm, and cell viability of 184%. In addition, the fastest L-929 cell proliferation and growth with time, verified by the cell proliferation (0–48 hr) and the scratch assay (0–15 hr), was observed for the PVA/CMC/PEG400 hydrogels, indicating that they are highly suitable for potential wound dressings that require fast healing regeneration. 相似文献
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针对有机化学的学科特点,在充分考虑生物医学工程专业实际和教学要求的基础上,从教学内容的组织、课堂教学等方面总结了有机化学教学中的一些实践和体会,有效提高了教学质量。 相似文献
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Elisangela Corradini Priscila S. Curti Adriano B. Meniqueti Alessandro F. Martins Adley F. Rubira Edvani Curti Muniz 《International journal of molecular sciences》2014,15(12):22438-22470
Zein is a biodegradable and biocompatible material extracted from renewable resources; it comprises almost 80% of the whole protein content in corn. This review highlights and describes some zein and zein-based materials, focusing on biomedical applications. It was demonstrated in this review that the biodegradation and biocompatibility of zein are key parameters for its uses in the food-packing, biomedical and pharmaceutical fields. Furthermore, it was pointed out that the presence of hydrophilic-hydrophobic groups in zein chains is a very important aspect for obtaining material with different hydrophobicities by mixing with other moieties (polymeric or not), but also for obtaining derivatives with different properties. The physical and chemical characteristics and special structure (at the molecular, nano and micro scales) make zein molecules inherently superior to many other polymers from natural sources and synthetic ones. The film-forming property of zein and zein-based materials is important for several applications. The good electrospinnability of zein is important for producing zein and zein-based nanofibers for applications in tissue engineering and drug delivery. The use of zein’s hydrolysate peptides for reducing blood pressure is another important issue related to the application of derivatives of zein in the biomedical field. It is pointed out that the biodegradability and biocompatibility of zein and other inherent properties associated with zein’s structure allow a myriad of applications of such materials with great potential in the near future. 相似文献