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Absence of heme-localized strain in T state hemoglobin: Insensitivity of heme-imidazole resonance Raman frequencies to quaternary structure
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This paper discusses the concerns raised by micro- and nanoplastics, with nanoplastics particularly worrying because their tiny size allows them to cross biological barriers. The authors note that limited detection methods prevent a full understanding of nanoplastic exposure and its health consequences.
Micro-nano plastics originating from the prevalent usage of plastics have raised increasingly alarming concerns worldwide. However, there remains a fundamental knowledge gap in nanoplastics because of the lack of effective analytical ...Plastics are now omnipresent in our daily lives. The existence of microplastics (1 µm to 5 mm in length) and possibly even nanoplastics (<1 μm) has recently raised health concerns. In particular, nanoplastics are believed to be more toxic since their ...
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Molecular Interaction of Functionalized Nanoplastics with Human Hemoglobin
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Scientists investigated how functionalized nanoplastic particles interact with human hemoglobin, the protein that carries oxygen in blood. Using multiple spectroscopic techniques, they found that nanoplastics bind to hemoglobin and alter its structure, with amine-functionalized particles showing the strongest binding. The study suggests that nanoplastic exposure could potentially interfere with hemoglobin function, raising questions about the effects of plastic particles in the bloodstream.
Multispectroscopic Investigations of the Binding Interaction between Polyethylene Microplastics and Human Hemoglobin
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Scientists used multiple spectroscopic techniques to investigate whether polyethylene microplastics can bind to human hemoglobin, the protein that carries oxygen in blood. They found that microplastic particles do interact with hemoglobin, altering its structural shape and potentially affecting its function. The findings raise questions about what might happen when microplastics enter the human bloodstream and interact with essential blood proteins.
Correlative spectroscopy and microscopy analysis of micro- and nanoplastics in complex biological matrices
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Researchers combined fluorescence, second harmonic generation, and coherent Raman scattering microscopy in a single instrument to image micro- and nanoplastics in lung cells, zebrafish, and mouse tissues. Polystyrene nanoplastics crossed the blood-brain barrier and accumulated in lipid-rich brain regions in mouse models.
Isolation and characterization of microplastics from human blood samples by confocal RAMAN microscopy
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Scientists have developed a new method to reliably detect tiny plastic particles called microplastics in human blood samples. Using this technique, they found plastic particles from materials like polystyrene and polyethylene in blood, confirming that these microscopic plastics can enter our bloodstream. While we still don't know the full health effects, this research gives us better tools to study how much plastic pollution is getting into our bodies and potentially affecting our health.
The Impact of Micro/Nanoplastics on Human Hematopoietic Function: Exposure, Deposition, Toxicity, and Mitigation Strategies
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Researchers reviewed how micro- and nanoplastics enter the body via diet and inhalation and accumulate in blood cells and hematopoietic organs, synthesizing animal and in vitro evidence that these particles disrupt red and white blood cell production through oxidative stress and inflammatory signaling while also exploring biodegradation and dietary mitigation strategies.
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.