We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Quantification of palladium-labelled nanoplastics algal uptake by single cell and single particle inductively coupled plasma mass spectrometry
Summary
Researchers developed a method using palladium-labelled nanoplastics and single-cell mass spectrometry to quantify nanoplastic uptake by algal cells. The study demonstrated that this technique can measure nanoplastic exposure on a per-cell basis, providing a valuable new tool for understanding how nanoplastics interact with organisms at the base of aquatic food webs.
Environmental context Plastic pollution is widespread and continues to be a major concern, both for the environment and human health. Identifying nanoplastics is challenging but is important to understand how they behave once in the environment. It is shown that a combination of single particle (SP) and single cell (SC) inductively coupled plasma mass spectrometry (ICP-MS) can be used to quantify nanoplastics on a per cell basis after exposure to algal cells. Abstract The effects of plastic pollution on human health and the environment are not well known but there are significant concerns. Although research has increased in recent years, there remain many obstacles to the quantification of nanoplastics. This rapid communication demonstrates that combined single particle (SP)– and single cell (SC)–inductively coupled plasma–mass spectrometry (ICP-MS) provide a novel means to quantify pre-formed core–shell metal–plastic composite nanoparticles when exposed to two freshwater algal cells, Cryptomonas ovata (C. ovata) and Cryptomonas ozolini (C. ozolini). It is shown that individual palladium plastic nanoparticles (Pd NPPs) exposed to algal cells form agglomerates in the cell suspension respectively consisting of 165 and 157 (±3.8) individual Pd NPPs for C. ozolini and C. ovata cells, and that the agglomerates are also cell-associated with 1.75–1.85 agglomerates per cell.
Sign in to start a discussion.
More Papers Like This
Inorganic Nanoparticle and Nanoplastic Transformations and the Impact on Biouptake by Freshwater Algal Cells Using Single Cell and Single Particle Inductively Coupled Plasma Mass Spectrometry
This dissertation used single-particle and single-cell ICP-MS to quantify how nanoparticles and nanoplastics transform in the presence of freshwater algae and how those transformations affect biouptake, finding that algal interactions altered particle surface chemistry and changed bioavailability.
Characterisation of microplastics and unicellular algae in seawater by targeting carbon via single particle and single cell ICP-MS
Researchers used single particle and single cell ICP-MS to characterize microplastics and microalgae simultaneously in seawater by targeting carbon signals, demonstrating the technique as a rapid and sensitive tool for distinguishing plastic particles from biological material.
Counting Nanoplastics in Environmental Waters by Single Particle Inductively Coupled Plasma Mass Spectroscopy after Cloud-Point Extraction and In Situ Labeling of Gold Nanoparticles
Researchers developed a cloud-point extraction and in-situ gold nanoparticle labeling method combined with single particle ICP-MS to count nanoplastics down to 50 nm in environmental water samples, enabling quantification of nanoplastics previously undetectable by conventional methods.
Investigating the Cellular Uptake of Model Nanoplastics by Single-Cell ICP-MS
Researchers developed gold-doped polyethylene and polyvinyl chloride nanoparticles as model nanoplastics and used single-cell ICP-MS to investigate their cellular uptake. The study demonstrated that this approach enables rapid, high-throughput detection of nanoplastic interactions with cells, providing a valuable tool for understanding how environmentally relevant nanoplastics behave at the cellular level.
A Novel Strategy for the Detection and Quantification of Nanoplastics by Single Particle Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
A new analytical method was developed to detect and count individual nanoplastic particles in drinking water and river water using gold nanoparticles as tags and single particle ICP-MS for detection. The method can detect nanoplastics as small as 135 nm at environmentally relevant concentrations, providing a sensitive new tool for tracking nanoplastic contamination.