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Microplastic diagnostics in humans: “The 3Ps” Progress, problems, and prospects
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Microplastics have now been detected in a wide range of human biological samples including blood, liver, lung, placenta, kidney, spleen, sputum, and feces using advanced analytical methods. This first systematic review of human microplastic diagnostics revealed that contamination control procedures remain inconsistent across studies, complicating cross-study comparison of exposure levels.
The growing global concern about human exposure to microplastics necessitates research into their occurrence, fate, and effects. Recent advancements in analytical methods have fostered research and improved understanding of microplastics in a variety of human tissue and biological samples, including blood, liver, lung, placenta, kidney, spleen, sputum, and feces, etc. Given the rapid expansion of this research topic, it is imperative to assess and introduce them to a broader audience. This article for the first time conducts a systematic review of the literature on microplastics in human biological samples, their objectives, current efforts, and key findings. This review offers an in-depth analysis of the research approaches employed, spanning from sampling to detection to quantification of microplastics, as well as an overview of their occurrence and characteristics to understand the level of microplastic exposure in the human body. It also provides a detailed analysis of existing contamination control procedures and attempts to build consistent cross-contamination prevention measures. Finally, we provide the reader with the guidelines on current microplastic research strategies, highlighting future directions. Overall, this synthesis will assist researchers in developing a multifaceted understanding of contemporary microplastic investigations in human biological samples.
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Micro- and nanoplastics in human biological materials: a systematic review of detection methods and methodological challenges
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Scientists have found tiny plastic particles in human organs like the placenta, liver, lungs, and kidneys, but this review of existing research reveals a big problem: labs around the world are testing for these particles in wildly inconsistent ways, using different tools, definitions, and measurement units. This makes it hard to know exactly how much plastic is really in our bodies or what health risks it poses—meaning we need more standardized research before drawing firm conclusions about how worried we should be.
Analytical challenges and advances in detecting microplastics in human tissue and organ samples.
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Scientists have found tiny plastic particles in human blood, lungs, and even placentas, but this review of 218 studies reveals a problem: the tools researchers use to detect microplastics aren't consistently reliable, and many studies skip basic quality checks that would confirm their results are accurate. This matters because until testing methods are standardized, it's hard to know exactly how much plastic is really in our bodies or what health risks it poses, the researchers call for stricter, more consistent lab practices to get trustworthy answers.
Emerging Analytical Methodologies for Micro- and Nano-Plastics Detection in Human Samples: Analytical Challenges and Health Risk Perspectives
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Scientists have found tiny plastic particles (microplastics and even smaller nanoplastics) throughout human organs and body fluids, but this review of existing research shows we still lack reliable, standardized tools to accurately measure them—different labs get different results depending on how they prepare and test samples. While lab studies suggest very small plastic particles can cause cell stress and inflammation, there isn't yet solid evidence directly linking plastic exposure to specific diseases in people—so the biggest takeaway is that we urgently need better testing methods before we can truly understand the health risks these particles pose.
Detection, characterization, and quantification of microplastics in human biological matrices: a systematic review.
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This review summarizes 40 studies that found microplastics in human blood, urine, feces, placenta, breast milk, semen, and lung and heart tissue. Methods for detecting these particles varied widely, and many studies had quality limitations, so researchers say current evidence cannot yet confirm health effects.
Microplastics and Nanoplastics in human tissues: Systematic review of evidence, analytical protocols, and methodological challenges
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This systematic review pulls together evidence on microplastics and nanoplastics found in human tissues like lungs, liver, and placenta. It confirms that tiny plastic particles are accumulating in our bodies, though detection methods still vary widely between studies, making it hard to compare results.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.