高度缺陷的基金属有机框架,用于有效吸附和检测生物样本中的糖酸盐
Wanfang Feng1, Yuyan Hu1, Maoqing Wang1
1Department of Sanitary Inspection, School of Public Health, Key Laboratory of Precision Nutrition and Health, Ministry of Education, Harbin Medical University, Harbin 150086, Heilongjiang, China.
ACS applied materials & interfaces
|July 11, 2024
概括
缺陷的基金属有机框架 (MOF) 从生物样本中有效吸附糖酸盐 (SPx). 这种新型吸附剂显示出高容量,选择性和低检测极限,在生物医学中显示出巨大的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 生物化学 生物化学
背景情况:
- 糖酸盐 (SPx) 是生物医学中至关重要的生物标志物.
- 精确丰富和定量SPx对于诊断和研究至关重要.
- 现有的方法在灵敏度,选择性和样本吞吐量方面面临挑战.
研究的目的:
- 为了合成和描述基于的新型金属有机框架 (MOFs),用于SPx吸附,具有可调节的缺陷.
- 研究这些MOF在生物样本中对SPx的吸附性能.
- 阐明吸附机制并评估开发的MOFs的实际适用性.
主要方法:
- 使用乙酸调制合成有缺陷的HP-UiO-66-NH2-X MOFs.
- 描述MOF的形态,毛孔大小和表面积.
- 吸附实验用于评估容量,选择性,pH值和时间依赖性.
- 使用X射线光电子谱学和密度函数理论阐明机制.
- 在血清,肝脏和细胞等生物矩阵中验证.
主要成果:
- 缺陷的HP-UiO-66-NH2-X MOFs表现出增加的表面积 (高达1142.50 m2·g-1) 和孔隙大小 (高达9.28 nm).
- HP-UiO-66-NH2-10仅使用80μg就实现了四个SPx的完整吸附,在广泛的pH范围内具有高效率,吸附时间短 (10分钟).
- 吸附机制涉及化学吸附和多层吸附,由协调,结合和静电相互作用驱动.
- 证明了低检测极限 (0.001-0.01 ng·mL−1),高精度 (<13.77%),准确度 (80.10-111.83%),选择性和吸附能力 (292 mg·g−1).
结论:
- 基于的MOF中的缺陷工程显著提高了SPx吸附能力.
- HP-UiO-66-NH2-10是一种高效的吸附剂,用于生物样本中的SPx丰富和检测.
- 这些有缺陷的MOF对生物医学和诊断领域的应用具有很大的前景.
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