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61,005 resultsShowing papers similar to Control of Nanoparticle Size of Intrinsically Fluorescent PET (Polyethylene Terephthalate) Particles Produced Through Nanoprecipitation
ClearAutofluorescence of Model Polyethylene Terephthalate Nanoplastics for Cell Interaction Studies
Researchers produced model PET nanoplastics through mechanical fragmentation and characterized their autofluorescence properties, enabling label-free tracking of nanoplastic interactions with biological systems without the artifacts introduced by fluorescent dyes.
Fabrication and characterization of (fluorescent) model nanoplastics for polymer specific detection
Scientists developed fluorescently labeled model nanoplastics that mimic the properties of real plastic particles, enabling polymer-specific identification at very small scales. These standardized reference particles are a key research tool because nanoplastics are otherwise extremely difficult to detect and characterize in environmental samples.
Size-Controlled Preparation of Polyethylene Nanoplastic Particles by Nanoprecipitation and Insights into the Underlying Mechanisms
Researchers developed a size-controlled method for preparing polyethylene nanoplastic model particles using nanoprecipitation, investigating how polymer solution concentration and volume affect particle size. The study provides a reliable approach for producing well-characterized polyolefin nanoplastics for use in toxicological and environmental research, addressing the previous lack of appropriate model particles for studying the risks of these prevalent plastic contaminants.
Fabrication of polyethylene terephthalate (PET) nanoparticles with fluorescent tracers for studies in mammalian cells
Fluorescent polyethylene terephthalate (PET) nanoparticles with a hydrodynamic diameter of 158 nm were synthesized in a bottom-up approach for use as research tools. Concentration-dependent uptake and cytotoxicity were demonstrated in macrophages, providing well-characterized PET nanoplastic models for studying cellular interactions.
Fluorescent plastic nanoparticles to track their interaction and fate in physiological environments
This study developed fluorescently labeled plastic nanoparticles made from PET, polypropylene, and polystyrene that can be tracked in biological environments to study how nanoplastics are taken up and processed by living organisms. Having trackable model nanoplastics is an important tool for understanding how these particles move through tissues and food chains.
Fabrication and characterization of (fluorescent) model nanoplastics for polymer specific detection
This study developed and characterized fluorescent model nanoplastics that can be tracked and identified by polymer type, providing standardized reference particles for laboratory research. Reliable model nanoplastics are critical tools for toxicology experiments — without them, it is difficult to compare results across studies or understand which plastic types pose the greatest biological risk.
Labeling of PET and PP nanoplastic test materials with non-leachable π-conjugated fluorescent polymers
Researchers produced fluorescently labeled PET and PP nanoplastic particles using co-precipitation with a conjugated polymer dye, achieving over 85% dye internalization and submicron particle sizes, and demonstrated their use for measuring cell uptake while overcoming dosimetry challenges posed by buoyant particles.
Preparation of Well-Defined Fluorescent Nanoplastic Particles by Confined Impinging Jet Mixing
Researchers developed a simple and reproducible method for producing well-defined fluorescent nanoplastic particles using a technique called confined impinging jet mixing. The method can create particles from different polymer types with controllable sizes and built-in fluorescent labels for easy tracking in experiments. These standardized reference materials are valuable for researchers studying how nanoplastics behave in the environment and interact with living organisms.
Production and Characterization of Polyethylene Terephthalate Nanoparticles
Researchers developed a simple, scalable milling method for producing polyethylene terephthalate (PET) nanoparticles from commercial pellets for use in laboratory toxicology and environmental studies. The method avoids the need for liquid nitrogen and produces representative model nanoplastics at low cost with high yield. The study addresses a key barrier in nanoplastics research by providing accessible reference particles that more closely resemble environmental plastic debris.
Assessing the effects of luminescently labelled and non-labelled PET nanoparticles on environmental bacteria
Researchers created fluorescently labeled PET nanoparticles to study how tiny plastic fragments from everyday products affect bacteria in the environment. They found that PET nanoparticles adhered to bacterial cells, altered their ability to use different carbon sources, and affected biofilm formation. The study demonstrates a new visualization technique for tracking nanoplastics in biological samples and reveals that even nanoscale plastic particles can influence microbial behavior.
Quantification of poly(ethylene terephthalate) micro- and nanoparticle contaminants in marine sediments and other environmental matrices
Researchers developed and validated a method to quantify PET (polyethylene terephthalate) micro- and nanoparticles in marine sediments and other environmental matrices using chemical digestion and fluorescence detection. This polymer-specific quantification approach addresses a gap in methods for tracking one of the world's most widely used plastics in the environment.
Harnessing PET to track micro- and nanoplastics in vivo
This study explores the use of positron emission tomography (PET) imaging to track micro- and nanoplastic particles in living organisms. Researchers developed methods to radiolabel plastic particles, enabling accurate determination of how these pollutants move through the body, which is critical for understanding the health effects of chronic microplastic exposure.
Developing nano plastics models to study their fate in the environment.
Researchers developed nanoplastic model particles with defined properties to study their behavior and fate in environmental systems. Standardized nanoplastic models are needed because naturally occurring nanoplastics are difficult to isolate and characterize for controlled experiments.
Developing nano plastics models to study their fate in the environment.
Researchers synthesized nanoplastic model particles with well-defined properties to study their environmental fate and transport under controlled conditions. Standardized nanoplastic models allow more reproducible experiments and help bridge the gap between lab studies and real-world nanoplastic behavior.
Development and Application of Nanoparticle-Nanopolymer Composite Spheres for the Study of Environmental Processes
This study developed labeled synthetic nanoplastic particles with built-in chemical, isotopic, or fluorescent tracers to allow precise tracking of plastic particle fate and behavior in complex environmental and biological samples. These standardized tracer particles address a key bottleneck in microplastic research by enabling more sensitive and selective detection in real-world matrices.
Synthesis of model polyethylene particles for the study of nanoplastics in the oceans
Researchers synthesized model polyethylene nanoplastic particles to serve as reference materials for studying the behavior and fate of nanoplastics in ocean environments, addressing the gap created by the lack of standardized particles representative of naturally fragmented marine plastic debris.
Synthesis of 14C‐Labeled Polyethylene Terephthalate and Generation of 14C‐Nanoparticles for Fate and Disposition Studies
Researchers developed a method to synthesize carbon-14 labeled polyethylene terephthalate (PET) and generate radiolabeled nanoparticles for tracking plastic fate in biological systems. The approach combines polycondensation chemistry with nanoprecipitation to produce well-characterized nanoparticles. This tool could enable researchers to study how PET micro- and nanoplastics are absorbed and distributed in the tissues of food animals, addressing a major knowledge gap in understanding plastic exposure through the food chain.
Fluorescent nanoplastics: What steps are needed towards a representative toolkit?
This review critically examines strategies for creating and using fluorescent nanoplastics in research, noting that commonly used commercial polystyrene beads are not representative of environmental nanoplastics. The study recommends alternative approaches for producing more realistic fluorescent model particles and provides a roadmap to help researchers select appropriate methods for their specific applications.
Testing laboratory protocols for micro- and nano-PET particles preparation by bottom-up chemical and top-down physical methods and implications for environmental studies
Researchers tested and compared chemical and physical methods for producing PET micro- and nanoparticles in the laboratory, evaluating each approach's ability to control particle size, shape, and purity. They found that each method has distinct trade-offs, with top-down grinding producing irregularly shaped particles more representative of environmental debris while bottom-up chemical methods offer better size control. The study provides practical guidance for standardizing how reference plastic particles are prepared for environmental research.
Generating Tagged Micro‐ and Nanoparticles of Poly(ethylene furanoate) and Poly(ethylene terephthalate) as Reference Materials
Researchers developed methods for generating fluorescently tagged micro- and nanoparticles of poly(ethylene furanoate) (PEF) and poly(ethylene terephthalate) (PET) as reference materials for environmental and biological detection studies. The tagged particles were designed to overcome the detection limit challenges posed by these emerging polymers in environmental samples and tissues, particularly for PEF, which is not yet commercially exploited at scale.
Fluorescent labelling as a tool for identifying and quantifying nanoplastics
Researchers used fluorescent labeling with four fluorescent molecules to enable detection of nanoplastics from six common polymer types (PP, LDPE, HDPE, PS, PET, PVC) via 3D fluorescence spectral analysis. The method provides a practical approach to identifying and quantifying nanoplastics in samples where conventional spectroscopic methods face sensitivity challenges.
Preparation of Nanoplastic Particles as Potential Standards for the Study of Nanoplastics
Researchers developed methods to prepare well-defined nanoplastic particles as potential reference standards for nanoplastic research, addressing the critical shortage of reliable materials for toxicity studies and analytical method validation. The study characterized the size, shape, and surface properties of the produced particles to confirm their suitability as standards.
A quality-by-design inspired approach to develop PET and PP nanoplastic test materials for use in in vitro and in vivo biological assays
Researchers developed a quality-by-design approach for producing standardized PET and polypropylene nanoplastic test materials suitable for biological assays. The study provides a systematic framework for generating consistent nanoplastic particles for use in both in vitro and in vivo toxicity studies.
Preparation of Nanoscale Particles of Five Major Polymers as Potential Standards for the Study of Nanoplastics
Researchers developed a precipitation-based method for preparing nanoscale particles of five major polymers, creating standardized reference materials needed for studying nanoplastic distribution and toxicity in the environment.