Linking the physical and chemical characteristics of single small microplastics or nanoplastics <i>via</i> photolithographic silicon substrates

Su, Lei; Du, Fangni; Sun, Chengjun; Shi, Huahong

doi:10.1039/d2ay00089j

Cited by 4 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plastic products that have been used or even aged are more susceptible to mechanical fragmentation than brand-new plastic products. Weathered plastic fragments, for instance, can produce more secondary MNPs during the shaking process than newly purchased ones [ 44 , 60 ]. This means that long-term environmental stressors operate as the basis for the majority of pathways for the generation of MNPs from mechanical fragmentation.…”

Section: Stress-induced Plastic Item Fragmentation Leading To the Pro...mentioning

confidence: 99%

A Hidden Pathway for Human Exposure to Micro- and Nanoplastics—The Mechanical Fragmentation of Plastic Products during Daily Use

Yu,

Craig,

2023

Toxics

Self Cite

View full text Add to dashboard Cite

In numerous environmental compartments around the world, the existence of micro- and nanoplastics (MNPs) in the environment has been verified. A growing number of studies have looked at the interaction between MNPs and human activities due to the risks they may pose to humans. Exposure pathways are key factors in measuring MNPs risks. However, current research largely ignores the contribution of mechanical fragmentation pathways to MNPs exposure during the daily use of plastic products. Our critical review demonstrated the research gap between MNP fragmentation and risk assessments via a network analysis. The release of fragmented MNPs and their properties were also described at various scales, with emphasis on environmental stressors and mechanical fragmentation. In the scenarios of daily use, plastic products such as food packaging and clothing provide acute pathways of MNPs exposure. The release tendency of those products (up to 102 mg MNPs) are several orders of magnitude higher than MNPs abundances in natural compartments. Despite the limited evidence available, waste recycling, landfill and municipal activities represented long-term pathways for MNPs fragmentation and point sources of MNPs pollution in environmental media. Assessing the health effects of the fragmentation process, unfortunately, is further hampered by the current absence of human exposure impact assessments for secondary MNPs. We proposed that future studies should integrate aging evaluation into risk assessment frameworks and establish early warning signs of MNPs released from plastic products.

show abstract

Section: Stress-induced Plastic Item Fragmentation Leading To the Pro...mentioning

confidence: 99%

A Hidden Pathway for Human Exposure to Micro- and Nanoplastics—The Mechanical Fragmentation of Plastic Products during Daily Use

Yu,

Craig,

2023

Toxics

Self Cite

View full text Add to dashboard Cite

show abstract

“…52 Su et al designed lithographic silicon substrates making possible the repositioning of nanoplastics on the substrate, which enables the analysis of the same particles by different instruments to obtain abundant information. 53 Py-GC/MS is not competing with other spectroscopic techniques, but rather complementing each other in the application of nanoplastic detection. Thermal analysis methods can provide information on the mass concentration of nanoplastics as well as additives, while relevant information on individual particles can be complemented by other spectroscopic methodologies.…”

Section: Number Concentrationsmentioning

confidence: 99%

“…Su et al. designed lithographic silicon substrates making possible the repositioning of nanoplastics on the substrate, which enables the analysis of the same particles by different instruments to obtain abundant information . Py-GC/MS is not competing with other spectroscopic techniques, but rather complementing each other in the application of nanoplastic detection.…”

Section: Introductionmentioning

confidence: 99%

Strategies and Challenges of Identifying Nanoplastics in Environment by Surface-Enhanced Raman Spectroscopy

Xie

Gong

Liu

et al. 2022

Environ. Sci. Technol.

View full text Add to dashboard Cite

Nanoplastics (<1000 nm) have been evidenced to be universal in a variety of environmental media. They pose a potential cytotoxicity and health risk due to their tiny size, which allows them to easily penetrate biological barriers and enter cells. Here, we briefly review the various prevalent analytical techniques or tools for identifying nanoplastics, and further move to focus on their advantages and disadvantages. Surface-enhanced Raman spectroscopy (SERS) has been implemented for the identification of individual nanoparticles because of its high sensitivity to molecules and ease of rapid characterization. Therefore, we introduce the SERS technique in the following aspects, (1) principles of SERS; (2) strategies and advances in SERS detection of nanoplastics; and (3) applying SERS to real environmental samples. We put our effort into the summarization of efficient SERS substrates that essentially enable the better detection of nanoplastics, and extend to discuss how the reported nanoplastics pretreatment methodologies can bring SERS analysis to practical applications. A further step moving forward is to investigate the problems and challenges of currently applied SERS detection methods and to look at future research needs in nanoplastics detection employing SERS analysis.

show abstract

Observation and physical characterization of nanoparticles

Qiu,

Dong,

2025

Analysis of Microplastics and Nanoplastics

View full text Add to dashboard Cite

Linking the physical and chemical characteristics of single small microplastics or nanoplastics via photolithographic silicon substrates

Abstract: Small microplastics and nanoplastics are of growing concern as they pose more risks to ecological and human health than larger particles. However, characterization of the morphological and chemical feature for...

Cited by 4 publications

References 27 publications

A Hidden Pathway for Human Exposure to Micro- and Nanoplastics—The Mechanical Fragmentation of Plastic Products during Daily Use

A Hidden Pathway for Human Exposure to Micro- and Nanoplastics—The Mechanical Fragmentation of Plastic Products during Daily Use

Strategies and Challenges of Identifying Nanoplastics in Environment by Surface-Enhanced Raman Spectroscopy

Observation and physical characterization of nanoparticles

Contact Info

Product

Resources

About