基于对pH响应的分子印记膜的双重识别策略,用于高度选择性地捕获甲基醇胺:从构造到实际应用
Huawen Yin1, Qian Hang1, Tianyi Xue1
1School of Pharmacy, Shenyang Pharmaceutical University, No.26 Huatuo Rd, High & New Tech Development Zone, 117004, Benxi, Liaoning Province, PR China.
Analytica chimica acta
|September 12, 2024
概括
开发了一种新型的双重识别印记膜 (BA-MIM),用于选择性捕获类甲醇胺 (CA). 这种方法可以在复杂的生物样本中准确量化CA,有助于疾病诊断和治疗.
科学领域:
- 生物材料科学 生物材料科学
- 分析化学 分析化学
- 生物化学 生物化学
背景情况:
- катехоламин (CA) 是各种疾病的关键生物标志物,需要精确的量化.
- 从复杂的生物矩阵中分离CA的微量含量是一个重大的分析挑战.
- 现有的预处理方法往往缺乏有效的CA隔离所需的选择性.
研究的目的:
- 开发一种高度选择性的双重识别印记膜,用于捕获和释放甲醇胺 (CA).
- 建立一种综合分析方法,用于在生物样本中敏感和选择性地检测CA.
- 在大鼠模型中研究CA代谢在缺陷综合征 (KYDS) 中的作用.
主要方法:
- 制造双重识别印记膜 (BA-MIM),使用pH响应亲和和和分子印记.
- 集成BA-MIM提取与超高性能液体染色学-并联质谱学 (UHPLC-MS/MS).
- 在大鼠大脑组织和KYDS大鼠模型中应用已开发的CA分析方法.
主要成果:
- BA-MIM表现出高吸附能力 (43.3 mg g-1),水友性 (46.2°),选择性 (IF = 6.2,α = 14.3) 和可重复使用性 (6个周期).
- 综合的UHPLC-MS/MS方法实现了低量化极限 (0.05-0.10 ng mL-1),宽线性范围 (10-1000 ng mL-1),以及高回收率 (88.5%-98.5%).
- 对KYDS大鼠模型的分析显示,脏疾病和甲基荷胺代谢之间存在联系.
结论:
- 开发的双重识别印记膜为复杂矩阵中的痕迹目标的高选择性分析提供了一个有效的平台.
- 综合分析策略是有效的,可持续的,多功能和方便的,用于生物样本分析.
- 这种方法显示出在临床诊断和生物医学研究中的各种应用的巨大潜力.
更多相关视频
08:22Ultrasensitive Detection of Biomarkers by Using a Molecular Imprinting Based Capacitive Biosensor
Published on: February 16, 2018
12.0K
11:44Cellular Membrane Affinity Chromatography Columns to Identify Specialized Plant Metabolites Interacting with Immobilized Tropomyosin Kinase Receptor B
Published on: January 19, 2022
2.5K
相关概念视频
Potentiometry: Membrane Electrodes
498
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
498
Affinity Chromatography
569
Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...
569
