We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Nanowell-enhanced Raman spectroscopy enables the visualization and quantification of nanoplastics in the environment
AI summary Read the abstract
A nanowell-enhanced Raman spectroscopy substrate was fabricated using the coffee ring effect to capture and concentrate nanoplastics, enabling direct visualization and detection of single polystyrene nanoplastics as small as 200 nm in environmental samples.
We fabricated a novel nanowell enhanced Raman spectroscopy substrate that can capture and detect nanoplastics with the aid of the coffee ring effect. Single polystyrene nanoplastics down to 200 nm can be directly visualized.
More Papers Like This
Direct Nanoplastics Detection Below the Diffraction Limit Using Micro Raman
AI summary Read the abstract
Researchers demonstrated that micro-Raman spectroscopy can directly detect polystyrene nanoplastic particles as small as 20 nm — far below the normal diffraction limit. This advances analytical capabilities for detecting the smallest nanoplastic particles in environmental samples.
Size-independent quantification of nanoplastics in various aqueous media using surfaced-enhanced Raman scattering
AI summary Read the abstract
Researchers developed a surface-enhanced Raman scattering method to quantify polystyrene nanoplastics of different sizes in aqueous samples, addressing the size-dependent signal variation that limits conventional SERS quantification. By dissolving nanoplastics in toluene and concentrating via the coffee-ring effect on gold-sputtered substrates, the method achieved size-independent quantification from 100 to 800 nm.
Identification of polystyrene nanoplastics using surface enhanced Raman spectroscopy
AI summary Read the abstract
Researchers demonstrated for the first time that surface-enhanced Raman spectroscopy (SERS) using silver nanoparticles can identify polystyrene nanoplastics as small as 50 nm in real water samples, providing a rapid detection method that bypasses conventional sample preparation and could advance environmental monitoring of nanoplastics previously invisible to standard analytical techniques.
Advanced microplastic monitoring using Raman spectroscopy with a combination of nanostructure-based substrates
AI summary Read the abstract
Researchers reviewed advances in Raman spectroscopy and surface-enhanced Raman scattering (SERS) — a technique that amplifies light signals using metallic nanostructures — for detecting micro- and nanoplastics at trace concentrations in environmental samples, highlighting new plasmonic materials, 3D substrates, and microfluidic chip platforms that enable on-site monitoring.
Polydopamine-coated flat glass surfaces for nanoplastics uptake and Raman-based detection: a case study with polystyrene
AI summary Read the abstract
This study developed a simple method for concentrating and detecting tiny nanoplastic particles on glass surfaces coated with polydopamine, enabling detection of polystyrene nanoplastics as small as 15 nm using Raman spectroscopy. The polydopamine coating works by electrostatically attracting nanoplastics and holding them in place for analysis, dramatically improving sensitivity compared to conventional methods. Reliable detection of nanoplastics at such small sizes is critical because nanoplastics are the most likely to penetrate cells and cause biological harm.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.