用于环境应用的生物安全,多功能酸盐-纳米粘土水凝的设计:结构,膨胀特性和吸附性
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Updated: Jul 18, 2026

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Generation of Alginate Microspheres for Biomedical Applications
Published on: August 12, 2012
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Nataliia Guzenko1, Olena Goncharuk2, Yurii Samchenko3
1Institute of Agrophysics, Polish Academy of Sciences, Doświadczalna 4, 20-290 Lublin, Poland; Chuiko Institute of Surface Chemistry, NAS of Ukraine, 17 General Naumov str., 03164 Kyiv, Ukraine.
International journal of biological macromolecules
|July 10, 2025
概括
使用基酸盐,蒙特莫里隆石和拉波尼特RD的新型复合水凝显示出出色的离子吸附. 这些对环境无害的材料在净化水和去除重金属方面提供了有前途的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 生物技术是生物技术.
背景情况:
- 复合水凝 (HGs) 是具有可调节性质的先进材料.
- 酸 (Alg) 是一种天然聚合物,经常用于水凝合成.
- 纳入像蒙莫里隆石 (MMT) 和拉波尼特RD (Lap) 这样的纳米粘土可以提高水凝性能.
研究的目的:
- 用MMT和Lap填充剂合成和表征基于基酸盐的复合水凝.
- 为了研究填充剂含量,交叉结合剂度和pH对水凝特性的影响.
- 评估这些水凝对离子 (Cd2+) 的吸附能力,并评估它们的生物安全性.
主要方法:
- 通过离子交联与离子 (Ca2+) 的凝合成.
- 使用SEM-EDX,XRD和FTIR进行结构分析.
- 通过电位定位对阴离子交换容量 (CEC) 和表面电荷进行表征.
- 使用Fick方程和Langmuir模型分析的胀和吸附研究.
- 在L-929小鼠纤维细胞细胞培养物上进行了体外细胞毒性和基因毒性测试.
主要成果:
- 确定了最佳合成条件:对于具有高胀和吸收的机械稳定的HG,0.3-0.5重量%的CaCl2.
- 对Cd2+的高吸收能力得到了实现:1.36 mmol/g (Alg),1.19 mmol/g (Alg/20%MMT) 和1.33 mmol/g (Alg/20%Lap). 它们的吸收能力是:
- 水的扩散遵循了Fickian行为,受交叉连接度的影响.
- 在体外试验证实了开发的复合水凝的生物安全性.
结论:
- 开发的Alg/MMT和Alg/Lap复合水凝显示出出色的机械稳定性和高吸能力,对Cd2+.
- 交联度显著影响水凝膨胀和扩散机制.
- 合成的复合水凝对环境是安全的,没有表现出基因毒性或细胞毒性.
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