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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Environmental Sources Nanoplastics Policy & Risk Sign in to save

Advanced Optical Imaging Technologies for Microplastics Identification: Progress and Challenges

Advanced Photonics Research 2024 29 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yunping Zhang, Jianqing Huang, Jianqing Huang, Jianqing Huang, Jianqing Huang, Yuen‐Wa Ho, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, Yanmin Zhu, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam Yuen‐Wa Ho, Yuxing Li, Yuxing Li, Yuxing Li, Yuen‐Wa Ho, Yuen‐Wa Ho, Yanmin Zhu, Yanmin Zhu, James Kar‐Hei Fang, Edmund Y. Lam Jianqing Huang, Yuen‐Wa Ho, James Kar‐Hei Fang, Edmund Y. Lam Jianqing Huang, Jianqing Huang, Edmund Y. Lam Yuen‐Wa Ho, Jianqing Huang, Yanmin Zhu, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam Edmund Y. Lam Edmund Y. Lam Jianqing Huang, Edmund Y. Lam Jianqing Huang, Yanmin Zhu, Edmund Y. Lam Edmund Y. Lam Yuen‐Wa Ho, Yuxing Li, Jianqing Huang, Jianqing Huang, Edmund Y. Lam Edmund Y. Lam Edmund Y. Lam Edmund Y. Lam Edmund Y. Lam James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam James Kar‐Hei Fang, Edmund Y. Lam James Kar‐Hei Fang, Edmund Y. Lam Edmund Y. Lam Yuen‐Wa Ho, Yunping Zhang, Yunping Zhang, Yunping Zhang, Yunping Zhang, Yunping Zhang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam Edmund Y. Lam Edmund Y. Lam James Kar‐Hei Fang, Edmund Y. Lam Edmund Y. Lam Edmund Y. Lam James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, Yuen‐Wa Ho, James Kar‐Hei Fang, Edmund Y. Lam James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam James Kar‐Hei Fang, Edmund Y. Lam James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, James Kar‐Hei Fang, Edmund Y. Lam

Summary

This review surveys advanced optical imaging technologies used to identify microplastics and nanoplastics in environmental samples. Researchers compared techniques like Raman spectroscopy, infrared imaging, and fluorescence microscopy, noting their strengths and limitations for detecting increasingly small particles. The study highlights that improving detection methods is essential for accurately monitoring the full scope of plastic pollution.

Global concern about microplastic (MP) and nanoplastic (NP) particles is continuously rising with their proliferation worldwide. Effective identification methods for MP and NP pollution monitoring are highly needed, but due to different requirements and technical challenges, much of the work is still in progress. Herein, the advanced optical imaging systems that are successfully applied or have the potential for MP identification are focused on. Compared with chemical and thermal analyses, optical methods have the unique advantages of being nondestructive and noncontact and allow fast detection without complex sample preprocessing. Furthermore, they are capable of revealing the morphology, anisotropy, and material characteristics of MP for their quick and robust detection. This review aims to present a comprehensive discussion of the relevant optical imaging systems, emphasizing their operating principles, strengths, and drawbacks. Multiple comparisons and analyses among these technologies are conducted in order to provide practical guidelines for researchers. In addition, the combination of optical and other alternative technologies is described and the representative portable MP detection devices are highlighted. Together, they shed light on the prospects for long‐term MP pollution monitoring and environmental protection.

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