AIE on a chip: Quantifying polymer solution transport in porous media

IF 3.7 1区化学 Q1 CHEMISTRY, ANALYTICAL

Sensors and Actuators B: Chemical Pub Date : 2025-07-03 DOI:10.1016/j.snb.2025.138246

Xuezhi Zhao, Jiaxuan Zhang, Jinghui Qiao, Qian Huang, Yujun Feng

{"title":"AIE on a chip: Quantifying polymer solution transport in porous media","authors":"Xuezhi Zhao, Jiaxuan Zhang, Jinghui Qiao, Qian Huang, Yujun Feng","doi":"10.1016/j.snb.2025.138246","DOIUrl":null,"url":null,"abstract":"<div><div>Complex fluid flow in porous media is critical for applications ranging from enhanced oil recovery to groundwater remediation and hemorheology. However, conventional rheometers fail to work in confined geometries, while existing organic probes suffer from photobleaching and limited viscosity sensitivity. This study introduces a novel method integrating aggregation-induced emission (AIE) probes with microfluidics to visualize and quantify viscosity variations in flowing poly(ethylene oxide) (PEO) solutions. Results demonstrate that AIE probes effectively capture shear-thinning behavior, with fluorescence intensity inversely proportional to flow rate. A quantitative relationship between fluorescence intensity and viscosity was established, enabling precise viscosity mapping within microchannels and 3D porous media. This approach offers a transformative platform for real-time microscale rheological sensing in microdomains, advancing fluid dynamics research and applications in energy and biomedical engineering.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":"443 ","pages":"Article 138246"},"PeriodicalIF":3.7000,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators B: Chemical","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925400525010226","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Complex fluid flow in porous media is critical for applications ranging from enhanced oil recovery to groundwater remediation and hemorheology. However, conventional rheometers fail to work in confined geometries, while existing organic probes suffer from photobleaching and limited viscosity sensitivity. This study introduces a novel method integrating aggregation-induced emission (AIE) probes with microfluidics to visualize and quantify viscosity variations in flowing poly(ethylene oxide) (PEO) solutions. Results demonstrate that AIE probes effectively capture shear-thinning behavior, with fluorescence intensity inversely proportional to flow rate. A quantitative relationship between fluorescence intensity and viscosity was established, enabling precise viscosity mapping within microchannels and 3D porous media. This approach offers a transformative platform for real-time microscale rheological sensing in microdomains, advancing fluid dynamics research and applications in energy and biomedical engineering.

Abstract Image

查看原文本刊更多论文

芯片上的AIE：多孔介质中聚合物溶液输运的定量

多孔介质中的复杂流体流动对于提高采收率、地下水修复和血液流变学等应用至关重要。然而，传统的流变仪无法在受限的几何形状中工作，而现有的有机探针则受到光漂白和有限的粘度敏感性的影响。本研究介绍了一种将聚集诱导发射（AIE）探针与微流体相结合的新方法，以可视化和量化流动的聚环氧乙烷（PEO）溶液中的粘度变化。结果表明，AIE探针能有效捕获剪切变薄行为，荧光强度与流速成反比。建立了荧光强度和粘度之间的定量关系，实现了微通道和三维多孔介质内精确的粘度映射。这种方法为微领域的实时微尺度流变传感提供了一个变革性的平台，促进了流体动力学研究和在能源和生物医学工程中的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

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.