使用紫外线修饰液晶接口的酶级联诱导光学感应氨酶
Duong Song Thai Duong1, Chang-Hyun Jang2
1Department of Chemistry, Gachon University, San 65, Bokjeong-Dong, Sujeong-Gu, Seongnam-City, Gyeonggi-Do, 461-701, South Korea.
Mikrochimica acta
|September 2, 2025
概括
这项研究提出了一种用于检测与疾病相关的酶氨酶 (HAase) 的新生物传感器. 响应pH的传感器为生物样本的HAase诊断提供了一种敏感和选择性的方法.
科学领域:
- 生物化学
- 生物材料科学
- 分析化学
背景情况:
- 氨酶 (HAase) 是瘤进展,细胞外矩阵重塑和炎症中的关键酶.
- HAase 作为疾病诊断的关键生物标志物.
- 现有的检测方法可能缺乏灵敏度或需要标签.
研究的目的:
- 开发一种无标签的,对pH有反应的生物传感器,用于敏感和选择性检测氨酶 (HAase).
- 用紫外线 (UV) 处理的液晶进行光学信号传输.
- 展示传感器在实际诊断应用中的潜力.
主要方法:
- 由氨酸 (HA) 的HAase水解启动的级联酶反应.
- 通过β-葡萄糖酶,胆酶和氨基氧化酶对HA进行序列降解,产生质子 (H+) 并降低pH值.
- 紫外线处理LC产品的质子化状态的pH诱导变化,导致光学重定向通过偏光学显微镜检测.
主要成果:
- 生物传感器表现出高灵敏度,检测极限为0.0018U/mL.
- 对HAase的线性检测范围为0. 3到40U/ ml.
- 传感器显示出优异的选择性,并在稀释的人体血清和尿液样本中成功检测出HAase.
结论:
- 开发的基于UV处理的LC生物传感器为HAase检测提供了敏感和选择性的平台.
- 无标签,响应pH的传感器为诊断提供了优势.
- 这项技术具有实用临床诊断应用的巨大潜力.
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