We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Low-cost, flexible, and highly sensitive SERS-based detection platform for nanoplastics
AI summary Read the abstract
A low-cost SERS (surface-enhanced Raman scattering) sensor was developed using kitchen aluminum foil coated with gold nanostars to detect nanoplastics in water at very low concentrations. The flexible, inexpensive substrate was reproducible and sensitive, offering a practical alternative to expensive lab equipment for nanoplastic detection. Making detection technology more affordable could accelerate research and monitoring of nanoplastics in the environment.
We report a low-cost, flexible, and highly reproducible SERS substrate, for the detection of nanoplastics (NPs). Commonly available kitchen foil (Aluminium tin foil (Al)) was used as a substrate over which a self-assembly monolayer (SAM) of sodium citrate stabilised gold nanostars (AuNSt) was deposited using the Marangoni effect-driven transfer process. The Limit of detection (LOD) of the substrate was found to be 5.64 parts per million (ppm) for 100 nm polystyrene nanoplastics. Further, a computational simulation-based SERS enhancement study between Silicon and Aluminium as a substrate was also done as a proof of concept. The plasmon coupling between Al and Au, which is leading to the third-generation hot-spot, was found to be the critical factor leading to the improvement in the Limit of detection of our reported substrate. As the current understanding regarding the abundance of NPs in various media is very limited, mainly due to the lack of an analytical method, hence we believe that the reported SERS substrate can be a robust and promising tool which can detect the presence of NPs in various conditions and contribute to fulfilling the knowledge gap about micro-and nanoplastic. Also see: https://micro2022.sciencesconf.org/427301/document
More Papers Like This
Detection of nanoplastics through low-cost SERS substrates, based on 3D islands of aggregated gold nanoparticles on aluminum foil, for wide ranging applications
AI summary Read the abstract
Researchers developed a low-cost surface-enhanced Raman spectroscopy (SERS) substrate by combining aluminium foil with 3D aggregates of gold nanoparticles stabilised by cucurbit[5]uril, enabling sensitive nanoplastic detection through plasmonic coupling. The substrate achieved trace-level analyte detection and offers a practical, scalable approach for nanoplastic identification across a wide range of environmental and analytical applications.
Development of Gold Nanostars Doped Flexible Substrate for Polystyrene Microplastic Detection Using Surface-enhanced Raman Scattering (sers)
AI summary Read the abstract
Detecting microplastics in the environment requires fast, sensitive analytical tools, and this study developed a low-cost sensor using gold nanostars on a flexible substrate to detect polystyrene microplastics via surface-enhanced Raman scattering (SERS). The gold nanostar structures amplify the Raman signal of plastic particles, enabling detection at very low concentrations. This kind of portable, affordable detection technology could help expand microplastic monitoring beyond well-equipped research labs.
Submicron- and nanoplastic detection at low micro- to nanogram concentrations using gold nanostar-based surface-enhanced Raman scattering (SERS) substrates
AI summary Read the abstract
This study developed gold nanostar-based surface-enhanced Raman scattering (SERS) substrates capable of detecting submicron- and nanoplastic particles at very low concentrations (micro- to nanogram per liter), filling a gap in analytical methods for the smallest plastic particles in complex matrices such as food and marine waters.
A gold nanoparticle doped flexible substrate for microplastics SERS detection
AI summary Read the abstract
Researchers developed a gold nanoparticle-doped filter paper as a flexible substrate for detecting microplastics using surface-enhanced Raman scattering. The method achieved a minimum detectable concentration of 0.1 grams per liter for PET in water and was successfully validated by detecting microplastics in tap water and pond water samples.
Portable surface-enhanced Raman scattering platform for rapid identification of nanoplastics at single-particle level
AI summary Read the abstract
Researchers developed a portable, gold-nanoparticle-coated paper substrate for surface-enhanced Raman scattering (SERS) that detects individual plastic particles down to 1 part per trillion, enabling rapid field identification of polystyrene and nylon nanoplastics released from food containers and teabags without laboratory equipment.
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.