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Article
Engineering, Environmental
Yanghui Xu et al.
Summary: This study used pyrolysis gas chromatography-mass spectrometry to determine the mass concentrations of microplastics (MPs) and nanoplastics (NPs) in two wastewater treatment plants (WWTPs). The results showed that the mass concentrations of total MPs and NPs decreased during the treatment process, with NPs having a lower removal efficiency than MPs. It was estimated that approximately 0.321 and 0.052 tons of MPs and NPs were released into the river each year based on the annual wastewater effluent discharge. Overall, this study provided valuable information about the pollution level and distribution characteristics of MPs, especially NPs, in WWTPs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Engineering, Environmental
Lihua Pang et al.
Summary: This study developed 10 criteria to assess the data quality of MP/NPs in foods and found that only three data records scored 2 or 1 on all criteria, while six data records scored 0 on as many as six criteria. The results also showed that the data quality of unprocessed foods was more reliable than that of processed foods. Furthermore, a quality assurance and quality control protocol for investigating MP/NPs in foods was proposed. It is important to note that the characteristics of MP/NPs used in toxicological studies and those existing in foods showed a remarkable discrepancy, causing uncertainty in health risk assessment.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Physical
L. Mikac et al.
Summary: Detection of microplastics remains challenging due to limitations in current methods, instrumentation, and particle size. In this study, surface-enhanced Raman spectroscopy (SERS) was used to successfully detect polystyrene (PS) and polyethylene (PE) particles in pure water. By synthesizing gold nanoparticles (Au NPs) of different sizes, and optimizing the conditions, efficient and stable SERS signals were observed on PS particles.
APPLIED SURFACE SCIENCE
(2023)
Article
Environmental Sciences
Yazhou Qin et al.
Summary: In this study, a fast detection method combining membrane filtration technology and surface-enhanced Raman spectroscopy (SERS) was developed to simultaneously enrich and detect nanoparticles as small as 20 nm. The method successfully detected standard polystyrene microspheres ranging from 20 nm to 10 μm and 100 nm polystyrene nanoplastics in tap water and rainwater.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Livius F. Muff et al.
Summary: Research on polymer nanoparticles in the environment and their impact on animal and human health is growing. This study presents a method to prepare well-defined nanoparticles with tailored characteristics, allowing for their detection in complex environments and mimicking environmentally relevant morphologies.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Review
Environmental Sciences
Jessica Caldwell et al.
Summary: This review summarizes research on various aspects of plastic particle analysis, including definitions, detection and characterization techniques, and generation of reference particles. Based on these studies, recommendations are provided to help researchers study plastics in complex environments.
Article
Environmental Sciences
Dusan Materic et al.
Summary: It has been established that various anthropogenic contaminants have already reached all the world's pristine locations, including the polar regions. Plastic pollution has been shown as a durable novel pollutant, and, since recently, smaller and smaller plastics particles have been identified in various environments (air, water and soil). However, far less is known about the plastics debris that fragmented to the sub-micrometre size (nanoplastics).
ENVIRONMENTAL RESEARCH
(2022)
Review
Environmental Sciences
Andrea Masseroni et al.
Summary: Nanoplastics (NPs) are a type of environmental contaminant that has gained increasing attention in recent years. This study reviews the literature on NPs and identifies research gaps in environmental risk assessments. The majority of studies have focused on the lethal and sublethal effects of NPs on aquatic and terrestrial organisms, while research on the presence of NPs in biotic matrices is lacking. Polystyrene NPs have received the most extensive research attention. NP concentrations detected in water are close to or higher than sublethal levels for organisms. A specific ERA framework for NPs is proposed.
Review
Environmental Sciences
Ruxia Qiao et al.
Summary: Plastic contamination in the environment is a major concern and assessing the risk of micro-and nanoplastics is challenging. This study collected and analyzed toxicity data of polystyrene micro- and nanospheres in various organisms, finding that aquatic invertebrates were the most studied, nanosized PS was more frequently studied, acute exposures were more prevalent than chronic exposures, and 40% of the data showed no effects of PS on organisms. Future studies should focus on environmentally relevant plastics concentrations, wide range of organisms, co-exposures with other pollutants, and method development for plastics identification and quantification.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Environmental Sciences
Jun-Li Xu et al.
Summary: This systematic review summarizes the current knowledge on the biological effects of micro- and nanoplastics (MNPs) on human health based on mammalian systems. The majority of the studies focused on the effects of polystyrene MNPs, and most of them reported adverse health effects, including cytotoxicity, inflammatory response, and oxidative stress. Some studies investigated the factors influencing the toxicity of MNPs, such as size, concentration, and shape.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Qing Yang et al.
Summary: This study proposes a method that combines membrane filtration and surface-enhanced Raman spectroscopy to analyze trace nanoplastics in water. The method achieves high sensitivity detection of low-concentration nanoplastics by using a bifunctional Ag nanowire membrane to enrich and enhance their Raman spectra in situ.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Environmental Sciences
Dusan Materic et al.
Summary: Plastic pollution in the marine environment is a global problem that has been detected across different regions with varying polymer types and fragment sizes. However, quantifying the presence of nanoplastics and ultrafine microplastics is challenging due to their minuscule nature. This study utilized a novel analytical assay to measure nanoplastics directly from seawater samples and different mesh filters in the Wadden Sea. The results revealed the presence of Polystyrene (PS) and Polyethylene terephthalate (PET) nanoplastics as well as ultrafine microplastics, indicating a significant contribution to the total plastic budget in the Wadden Sea.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Shinji Kihara et al.
Summary: This study presents a novel filter paper-based method using surface-enhanced Raman spectroscopy (SERS) for detecting polystyrene nanoplastics. The method is simple and offers high detection sensitivity.
Article
Chemistry, Physical
Dewen Xu et al.
Summary: Due to the overuse of plastic products, the pollution caused by decomposed microplastics (MPs) in aquatic ecosystems has become a global issue. This study proposes a novel MP detection method based on surface-enhanced Raman scattering (SERS), which is simple, sensitive, accurate, and stable, and can achieve on-site detection.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Applied
Youngho Jeon et al.
Summary: This study presents a method for constructing surface-enhanced Raman scattering (SERS)-active array substrates using regenerated cellulose and plasmonic nanoparticles for rapid detection of nanoplastics. The silver nanowires exhibited better SERS activity for polystyrene nanoplastic detection compared to gold nanorods. This low-cost, flexible, and highly sensitive approach could provide an efficient and rapid method for nanoplastic detection.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Environmental
Quang Trung Le et al.
Summary: Novel Raman substrates were prepared and utilized for sensitive detection of submicron-sized plastic spheres in water, with efficient identification achieved through the insertion of silver-coated gold nanostars into aluminum oxide nanopores to enhance detection efficiency, yielding a detection limit of 0.005%.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Xiao-Xia Zhou et al.
Summary: The accumulation of micro- and nanoplastics in the environment is a major global issue, with concerns about potential harm to wildlife. Identification of nanoplastics in environmental samples remains a challenge, but surface enhanced Raman spectroscopy (SERS) has been shown as a feasible approach to quickly identify and analyze trace polystyrene (PS) nanoplastics. The proposed method has the potential to further study the occurrence, formation, and transports of nanoplastics in the natural environment.
Article
Chemistry, Multidisciplinary
Jessica Caldwell et al.
Summary: A study focused on detecting small plastic particles by creating surface-enhanced Raman scattering spectroscopy substrates using gold nanoparticles, resulting in improved scattering signals during Raman spectroscopy measurements. The technique enabled the detection of plastic particles at concentrations as low as 10 μg/mL, with analytical enhancement factors of up to 446 achieved.
Article
Instruments & Instrumentation
Veronica Nava et al.
Summary: Raman spectroscopy is increasingly being used in the analysis of microplastics, particularly in aquatic systems. This technique offers high spatial resolution for investigating small plastic particles, but faces challenges such as fluorescence interference and weathered polymers. Understanding plastic polymers and their Raman peaks is crucial to avoid misidentification, and resources such as the RamanMP package with a database of spectra can aid in improving the use of this technique for microplastic analysis.
APPLIED SPECTROSCOPY
(2021)
Review
Chemistry, Multidisciplinary
Judith Langer et al.
Article
Engineering, Environmental
Guanjun Xu et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Environmental Sciences
Lulu Lv et al.
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Mingtan Dong et al.
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Chemistry, Physical
Wenjing Xi et al.
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Spectroscopy
Peter Bock et al.
JOURNAL OF RAMAN SPECTROSCOPY
(2019)
Article
Engineering, Environmental
Raymond Gillibert et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Review
Nanoscience & Nanotechnology
Robin R. Jones et al.
NANOSCALE RESEARCH LETTERS
(2019)
Article
Engineering, Environmental
Laura M. Hernandez et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2019)
Article
Environmental Sciences
Liqi Cai et al.
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Engineering, Environmental
Barbara E. Ossmann et al.
Article
Engineering, Environmental
Alexandra Ter Halle et al.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2017)
Article
Biochemical Research Methods
Andrea Kaeppler et al.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2016)
Article
Chemistry, Physical
Esther Rebollar et al.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2014)
Article
Chemistry, Multidisciplinary
Frederick G. Vogt et al.
PHARMACEUTICAL RESEARCH
(2012)
Article
Nanoscience & Nanotechnology
Pandian Senthil Kumar et al.
Article
Polymer Science
AS Nielsen et al.
