Extracellular vesicle-based point-of-care testing for diagnosis and monitoring of Alzheimer's disease.

IF 7.3 1区 工程技术 Q1 INSTRUMENTS & INSTRUMENTATION
Xiang Li, Jie Chen, Yang Yang, Hongwei Cai, Zheng Ao, Yantao Xing, Kangle Li, Kaiyuan Yang, Weihua Guan, James Friend, Luke P Lee, Nian Wang, Feng Guo
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引用次数: 0

Abstract

Extracellular vesicles (EVs) show potential for early diagnosis of Alzheimer's disease (AD) and monitoring of its progression. However, EV-based AD diagnosis faces challenges due to the small size and low abundance of biomarkers. Here, we report a fully integrated organic electrochemical transistor (OECT) sensor for ultrafast, accurate, and convenient point-of-care testing (POCT) of serum EVs from AD patients. By utilizing acoustoelectric enrichment, the EVs can be quickly propelled, significantly enriched, and specifically bound to the OECT detection area, achieving a gain of over 280 times response in 30 s. The integrated POCT sensor can detect serum EVs from AD patients with a limit of detection as low as 500 EV particles/mL and a reduced detection time of just two minutes. Furthermore, the integrated POCT sensors were used to monitor AD progression in an AD mouse model by testing the mouse Aβ EVs at different time courses (up to 18 months) and compared with the Aβ accumulation using high-resolution magnetic resonance imaging (MRI). This innovative technology has the potential for accurate and rapid diagnosis of Alzheimer's and other neurodegenerative diseases, and monitoring of disease progression and treatment response.

基于细胞外囊泡的阿尔茨海默病诊断和监测即时检测。
细胞外囊泡(EVs)显示出阿尔茨海默病(AD)早期诊断和监测其进展的潜力。然而,由于生物标志物的体积小、丰度低,基于ev的AD诊断面临挑战。在这里,我们报道了一种完全集成的有机电化学晶体管(OECT)传感器,用于超快速、准确和方便的AD患者血清EVs点护理检测(POCT)。通过利用声电富集,电动汽车可以快速推进,显著富集,并特异性地绑定到OECT探测区域,在30秒内获得超过280倍的响应增益。集成的POCT传感器可以检测AD患者的血清EVs,检测限低至500 EV颗粒/mL,检测时间缩短至仅2分钟。此外,该集成POCT传感器用于监测AD小鼠模型的AD进展,通过测试不同时间过程(长达18个月)的小鼠Aβ ev,并使用高分辨率磁共振成像(MRI)与Aβ积累进行比较。这项创新技术有可能准确、快速地诊断阿尔茨海默病和其他神经退行性疾病,并监测疾病进展和治疗反应。
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来源期刊
Microsystems & Nanoengineering
Microsystems & Nanoengineering Materials Science-Materials Science (miscellaneous)
CiteScore
12.00
自引率
3.80%
发文量
123
审稿时长
20 weeks
期刊介绍: Microsystems & Nanoengineering is a comprehensive online journal that focuses on the field of Micro and Nano Electro Mechanical Systems (MEMS and NEMS). It provides a platform for researchers to share their original research findings and review articles in this area. The journal covers a wide range of topics, from fundamental research to practical applications. Published by Springer Nature, in collaboration with the Aerospace Information Research Institute, Chinese Academy of Sciences, and with the support of the State Key Laboratory of Transducer Technology, it is an esteemed publication in the field. As an open access journal, it offers free access to its content, allowing readers from around the world to benefit from the latest developments in MEMS and NEMS.
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