Al2O3/Ag/ZIF-8准腔共约束效应检测肺癌醛类生物标志物

IF 3.7 1区 化学 Q1 CHEMISTRY, ANALYTICAL
Lingmeng Fang, Yunhai Zhang, Hao Li, Jing Yu, Maosen Yang
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引用次数: 0

摘要

利用表面增强拉曼散射(SERS)技术监测人体呼出气体中的醛类,是一种新兴的肺癌早期筛查方法;然而,目前面临着几个挑战:一是SERS底物捕获醛分子的能力有限,二是醛分子之间的共定位程度低,热点空间分布不明显。为了解决这些问题,本研究提出了一种Al2O3/Ag/ZIF-8 SERS准腔结构,该结构能够双重调节分子内热点,捕获气体分析物,以及“热点分析物”的微局部共定位。利用该结构,我们实现了0.2 ppb-20 ppm浓度范围内乙基苯甲醛分子的灵敏检测,并初步探索了其对人体呼出气体中醛类生物标志物的特异性识别。本研究提供了一种多功能的气体分子SERS检测策略,为准确检测人体呼出气体中各种癌症相关气体生物标志物提供了重要的参考价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Detection of Lung Cancer Aldehydes Biomarker by Al2O3/Ag/ZIF-8 SERS Quasi Cavity with Co-Confinement Effect

Detection of Lung Cancer Aldehydes Biomarker by Al2O3/Ag/ZIF-8 SERS Quasi Cavity with Co-Confinement Effect
The utilization of surface-enhanced Raman scattering (SERS) technology for monitoring aldehydes in human exhaled gas represents a burgeoning method for early screening of lung cancer; however, it currently faces several challenges: firstly, the limited capacity of SERS substrates to capture aldehyde molecules, and secondly, the low degree of co-localization between aldehyde molecules and hotspot spatial distribution. To address these issues, this study proposes an Al2O3/Ag/ZIF-8 SERS quasi-cavity structure, which enables the dual regulation of intramolecular hotspots, the capture of gaseous analytes, and the micro-localized co-localization of "hotspots-analytes." Leveraging this structure, we achieved sensitive detection of ethyl benzaldehyde molecules over a concentration range of 0.2 ppb-20 ppm, and preliminarily explored its specific recognition of aldehyde biomarkers in human exhaled gas. This research provides a versatile SERS detection strategy for gaseous molecules, offering significant reference value for the accurate detection of various cancer-associated gaseous biomarkers in human exhalations.
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来源期刊
Sensors and Actuators B: Chemical
Sensors and Actuators B: Chemical 工程技术-电化学
CiteScore
14.60
自引率
11.90%
发文量
1776
审稿时长
3.2 months
期刊介绍: Sensors & Actuators, B: Chemical is an international journal focused on the research and development of chemical transducers. It covers chemical sensors and biosensors, chemical actuators, and analytical microsystems. The journal is interdisciplinary, aiming to publish original works showcasing substantial advancements beyond the current state of the art in these fields, with practical applicability to solving meaningful analytical problems. Review articles are accepted by invitation from an Editor of the journal.
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