人工智能辅助微流控技术的研究进展

Research Progress of Artificial Intelligence assisted Microfluidics Technology

  • 摘要: 在工业4.0的驱动下,智能化在各行各业中均发挥着重要作用,人工智能技术与微流控技术结合是微流控领域发展的一个必然趋势,人工智能强大的数据处理能力辅助集成式微流控技术的设计,赋予其高效高通量生成、高精度可控性的生产能力,可以为材料合成、化学反应和生物医学等领域提供强大工具。相较于传统人工分析方法,人工智能辅助的微流控技术具有更高的处理速率、更少的人为干预,有效缓解了传统微流控依赖研究人员经验、实验重复性差、优化过程耗时耗力等问题。此外,人工智能模型有望进一步实现对液滴生成、反应条件优化等的深入探究。鉴于此,该交叉领域无疑具有广阔的发展前景,而目前系统性对其进行总结和阐述的论文却相对缺乏。本文旨在系统性的梳理人工智能辅助微流控技术的研究进展。首先介绍了微流控领域常用的人工智能模型,并分别从微流控液滴生成、微反应器优化设计、功能微纳材料合成、微流控化学反应和生物医学技术五个方面详细阐述了人工智能辅助微流控技术的应用,最后对这一交叉领域未来的发展方向进行了总结和展望。该工作不仅系统综述了人工智能与微流控融合的研究现状及其应用,并对其未来发展趋势进行了前瞻性展望,为相关领域的研究者提供了研究的新思路。

     

    Abstract: In recent years, artificial intelligence (AI) technology has witnessed tremendous progress, particularly in the field of engineering applications. From simple machine learning (ML) models and deep learning (DL) equipped with complex image processing capabilities, to the rapidly advancing large language models (LLMs), all these models have demonstrated formidable capabilities in engineering applications. Microfluidics, as a crucial technology in chemical synthesis and the life sciences, also requires the assistance of AI technology. The integration of artificial intelligence with microfluidic technology has emerged as a significant trend in the field of microfluidics. The combination of AI's powerful data processing capabilities with the high-throughput generation, high-precision controllability, and rapid reaction analysis capabilities of microfluidics offers a powerful toolkit for fields such as materials science, chemical reaction, and biomedicine. Compared to traditional manual analysis methods, AI-assisted microfluidic technology provides faster processing speeds and reduces human intervention significantly, addressing the challenges of conventional microfluidics, such as reliance on researcher experience, poor experimental repeatability, and time-consuming optimization processes. Simultaneously, AI models can further facilitate investigations into fundamental microfluidic principles. This represents a highly promising direction, yet literature is scarce in systematically summarizing and elaborating upon this emerging interdisciplinary field. Accordingly, this paper systematically reviews the research progress of AI-assisted microfluidic technology. We start with introducing the AI models, which are employed in the microfluidics domain, including four common machine learning models, tree-based models and support vector machines (SVM), deep learning (DL), and reinforcement learning (RL). Tree models typically possess strong interpretability. SVM is a common classification model suitable for complex data. DL is a frequently used image processing model that achieves functions such as object detection and image classification by simulating the human brain via neural networks, and RL is a distinct trial-and-error AI algorithm that continuously enhances its own performance through interaction with the environment. Following, we discuss the applications of AI-assisted microfluidic technology from several aspects: microfluidic droplet generation, microreactor optimization design, micro/nano-material synthesis, catalytic reactions, and biomedical detection. Regarding droplet microfluidics, we examine how AI models predict generation performance and employ explainable frameworks to investigate the underlying factors governing these processes. We further showcase the use of deep learning for flow pattern recognition and the real-time tracking of droplets and bubbles. Turning to microreactors, we analyze the integration of machine learning for structural design and performance optimization. In the realm of micro/nano-material synthesis, we explore AI-driven approaches for property prediction and the construction of autonomous synthesis platforms. Furthermore, in chemical reactions field, we discuss the application of AI to identify optimal reaction conditions and enhance substance detection. Finally, we discuss the advancement of AI in cell sorting, high-precision detection, and the forecasting of cellular changes within the biomedical field. In conclusion, this review provides an outlook on the future development directions of this interdisciplinary field. In the outlook section, we propose three perspectives: the development of efficient label-free, semi-supervised models and high-precision models suitable for small datasets; the creation of end-to-end AI models that bypass complex feature extraction steps; and the integration of AI models with integrated microfluidic chips to develop automated platforms and realize innovative microfluidic application modes.

     

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