Titanium-doped PET nanoplastics of environmental origin as a true-to-life model of nanoplastic
The Science of The Total Environment2023
20 citations
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Aliro Villacorta
Ricard Marcos,
Mohamed Alaraby,
Michelle Morataya-Reyes,
Michelle Morataya-Reyes,
Lourdes Vela,
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Laura Rubio,
Laura Rubio,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Ricard Marcos,
Alba Hernández,
Aliro Villacorta
Alba Hernández,
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Aliro Villacorta
Alba Hernández,
Aliro Villacorta
Aliro Villacorta
Laura Rubio,
Aliro Villacorta
Lourdes Vela,
Michelle Morataya-Reyes,
Ricard Marcos,
Mohamed Alaraby,
Lourdes Vela,
Laura Rubio,
Alba Hernández,
Aliro Villacorta
Michelle Morataya-Reyes,
Aliro Villacorta
Michelle Morataya-Reyes,
Alba Hernández,
Michelle Morataya-Reyes,
Laura Rubio,
Laura Rubio,
Alba Hernández,
Aliro Villacorta
Ricard Marcos,
Aliro Villacorta
Mohamed Alaraby,
Lourdes Vela,
Lourdes Vela,
Alba Hernández,
Alba Hernández,
Laura Rubio,
Alba Hernández,
Alba Hernández,
Aliro Villacorta
Laura Rubio,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Mohamed Alaraby,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Michelle Morataya-Reyes,
Michelle Morataya-Reyes,
Raquel Llorens-Chiralt,
Raquel Llorens-Chiralt,
Raquel Llorens-Chiralt,
Raquel Llorens-Chiralt,
Alba Hernández,
Ricard Marcos,
Alba Hernández,
Ricard Marcos,
Aliro Villacorta
Laura Rubio,
Ricard Marcos,
Ricard Marcos,
Lourdes Vela,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Raquel Llorens-Chiralt,
Alba Hernández,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Mohamed Alaraby,
Alba Hernández,
Alba Hernández,
Raquel Llorens-Chiralt,
Ricard Marcos,
Alba Hernández,
Ricard Marcos,
Aliro Villacorta
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Mohamed Alaraby,
Alba Hernández,
Laura Rubio,
Alba Hernández,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Alba Hernández,
Laura Rubio,
Laura Rubio,
Ricard Marcos,
Michelle Morataya-Reyes,
Aliro Villacorta
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Alba Hernández,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Alba Hernández,
Ricard Marcos,
Alba Hernández,
Alba Hernández,
Ricard Marcos,
Ricard Marcos,
Alba Hernández,
Alba Hernández,
Ricard Marcos,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Ricard Marcos,
Laura Rubio,
Laura Rubio,
Laura Rubio,
Alba Hernández,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Ricard Marcos,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Alba Hernández,
Ricard Marcos,
Ricard Marcos,
Alba Hernández,
Alba Hernández,
Aliro Villacorta
Summary
Researchers created realistic nanoplastic test material by sanding down PET bottles that contain titanium dioxide, producing particles that closely resemble the secondary nanoplastics actually found in the environment. These titanium-doped PET nanoplastics were extensively characterized and then tested on human intestinal cells, where they caused cellular stress responses. The study provides a more environmentally relevant model for studying nanoplastic health effects compared to the pristine lab-made particles typically used in research.
The increased presence of secondary micro/nanoplastics (MNPLs) in the environment requires urgent studies on their potentially hazardous effects on exposed organisms, including humans. In this context, it is essential to obtain representative MNPL samples for such purposes. In our study, we have obtained true-to-life NPLs resulting from the degradation, via sanding, of opaque PET bottles. Since these bottles contain titanium (TiO<sub>2</sub>NPs), the resulting MNPLs also contain embedded metal. The obtained PET(Ti)NPLs were extensively characterized from a physicochemical point of view, confirming their nanosized range and their hybrid composition. This is the first time these types of NPLs are obtained and characterized. The preliminary hazard studies show their easy internalization in different cell lines, without apparent general toxicity. The demonstration by confocal microscopy that the obtained NPLs contain Ti samples offers this material multiple advantages. Thus, they can be used in in vivo approaches to determine the fate of NPLs after exposure, escaping from the existing difficulties to follow up MNPLs in biological samples.