We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Plasmonic nanostructures for environmental monitoring and/or biological applications
ClearAdvanced microplastic monitoring using Raman spectroscopy with a combination of nanostructure-based substrates
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.
Detection and analysis of microplastics in the subtropical ocean of Okinawa using micro-Raman Optical Tweezers
Micro-Raman optical tweezers were used to isolate and identify individual microplastic particles from seawater samples collected off Okinawa, demonstrating that this single-particle technique can characterize polymer composition of very small particles that are difficult to detect with conventional methods.
Microplastic identification using Raman microsocpy
Researchers developed and implemented a Raman spectroscopy system for rapid detection and identification of microplastic particles on substrates. The system enables efficient chemical characterization of microplastics found across diverse environmental matrices including ocean, lakes, soil, beach sediment, and human blood.
Detection of microplastics and nanoplastics: Are Raman tweezers and enhanced Raman methods the solution for sub 20 μm particles?
Raman tweezers — devices that use a laser beam to trap and analyze individual particles — combined with plasmonic enhancement techniques can detect and characterize nanoplastics and microplastics smaller than 20 µm, a size range that defeats most conventional filtration-based detection methods. Improving detection sensitivity for the smallest plastic particles is critical because nanoplastics are thought to be the most biologically active fraction, capable of crossing cell membranes and accumulating in tissues.
Identification of Microplastics Using a Custom Built Micro-Raman Spectrometer
Researchers built a custom micro-Raman spectrometer and demonstrated its use for identifying microplastic polymer types in environmental samples, achieving sensitive and specific polymer identification at particle sizes down to a few micrometers.
Trapping and chemical characterization of sub-microplastics using Raman optical tweezers with machine learning
Researchers combined optical tweezers Raman spectroscopy with machine learning-driven PCA to identify and classify individual sub-micron plastic particles (PE, PP, PS) from environmental matrices. By analyzing 35 Raman spectra, the platform demonstrated accurate single-particle identification without complex sample preparation.
Design of a confocal micro-Raman spectroscopy system and research on microplastics detection
Researchers built a custom confocal micro-Raman spectroscopy system designed to detect microplastics more cost-effectively than commercial instruments. The improved signal quality enables more accurate identification of plastic polymer types in environmental samples.
Plasmonic Nanomaterials for Micro- and Nanoplastics Detection
This review examines plasmonic noble metal nanomaterials (gold, silver, and their alloys) as analytical tools for detecting and quantifying micro- and nanoplastics in environmental samples. Plasmonic materials exploit surface-enhanced Raman scattering and other optical effects to achieve highly sensitive detection of plastic particles.
Detection of small microplastics in the surface freshwater samples of Yangcheng Lake, China
Using optical confocal micro-Raman tweezers, researchers identified 136 small microplastics (under 20 µm) among 514 particles analyzed in 15 surface water sites around Yangcheng Lake, China, with polystyrene dominating at 63% of detected particles.
Plasmonic Carbonaceous Nanotemplates for Microplastics Raman Detection
Scientists developed a carbon-based nanostructure platform that enhances Raman spectroscopy signals, enabling more sensitive and accurate detection of microplastics in environmental samples. This tool could improve monitoring of microplastic pollution at concentrations previously too low to measure reliably.
Raman Tweezers for Small Microplastics and Nanoplastics Identification in Seawater
Researchers used Raman tweezers - optical tweezers combined with Raman spectroscopy - to capture and chemically identify individual small microplastic and nanoplastic particles in seawater samples in situ. This novel technique could enable real-time identification of the smallest plastic particles in marine environments, filling a critical gap in nano- and micro-plastic detection.
Identification of microplastics using Raman spectroscopy: Latest developments and future prospects
This review summarizes the latest advances in using Raman spectroscopy to identify microplastics in environmental samples, highlighting improvements in speed, sensitivity, and the ability to characterize plastic type and surface chemistry.
A review of recent progress in the application of Raman spectroscopy and SERS detection of microplastics and derivatives
This review covers advances in using Raman spectroscopy and surface-enhanced Raman spectroscopy (SERS) to detect and identify microplastics in the environment. These techniques offer high resolution and sensitive detection that can identify specific plastic types even at very small sizes. Better detection methods are essential for understanding the true extent of microplastic contamination and its potential risks to human health.
Microplastic and nanoplastic analysis in drinking water and indoor air with Raman micro-spectroscopy
Raman micro-spectroscopy was used to detect and characterize micro- and nanoplastics in drinking water and indoor air, demonstrating the technique's value for assessing human exposure to plastic particles across multiple environments.
Applications of Raman spectroscopy for microplastic detection and characterization: a comprehensive spectral reference
This review evaluates Raman spectroscopy as a tool for detecting and identifying microplastics across water, soil, air, and biological samples. The study consolidates reference spectra for common plastic polymers and discusses recent innovations like surface-enhanced Raman techniques that improve detection sensitivity, while also addressing challenges like fluorescence interference in complex samples.
Visualization and characterisation of microplastics in aquatic environment using a home-built micro-Raman spectroscopic set up
Researchers built an affordable micro-Raman spectroscopy system capable of identifying microplastics in water samples, offering a low-cost alternative to expensive commercial equipment. The system could visualize, measure, and chemically identify different types of microplastic particles. This kind of accessible detection technology is important, especially for developing countries, because widespread monitoring of microplastic pollution in water sources is essential for protecting public health.
Study on Rapid Recognition of Marine Microplastics Based on Raman Spectroscopy
Researchers developed a rapid identification system for marine microplastics using Raman spectroscopy, enabling quick determination of plastic type and size. Fast, accurate identification tools are critical for monitoring the growing problem of microplastic pollution in ocean environments.
Raman Microspectroscopy: Improvement in Signal Generation and Collection to Facilitate Raman Spectroscopy
Advances in Raman microspectroscopy were reviewed for improving signal generation and analysis in microplastic identification, including new detector designs and data processing algorithms. Enhanced Raman spectroscopy capabilities enable faster and more accurate polymer identification at smaller particle sizes.
Blue micro-/nanoplastics abundance in the environment: a double threat as a Trojan horse for a plastic-Cu-phthalocyanine pigment and an opportunity for nanoplastic detection via micro-Raman spectroscopy
Researchers exploited the resonance Raman signal of copper-phthalocyanine blue pigment in abundant environmental blue microplastics to enable micro-Raman spectroscopic detection of nanoplastics below conventional size limits, simultaneously identifying pigmented microplastics as a dual environmental threat and detection opportunity.
Rapid MicroplasticDetection Using High-ThroughputScreening Raman Spectroscopy
Researchers developed a high-throughput screening Raman spectroscopy system for rapid microplastic detection, overcoming the traditional tradeoff between spatial resolution, field of view, and analytical throughput to enable faster identification of plastic particles across environmental samples with low concentrations.
Fluorescence-Guided Raman Spectroscopy with an Integrated Adapter for Faster and Cost-Effective Microplastic Detection
A fluorescence-guided Raman spectroscopy system with integrated adaptive optics was developed to improve detection of microplastics in complex environmental matrices. The instrument advances the sensitivity and speed of microplastic identification, supporting more thorough environmental monitoring.
Fast microplastics identification with stimulated Raman scattering microscopy
Stimulated Raman scattering microscopy was applied to rapidly identify and image microplastic particles in complex environmental samples at speeds dramatically faster than conventional Raman spectroscopy. The technique has potential to enable high-throughput microplastic analysis that could make large-scale environmental monitoring more feasible.
In situ surface-enhanced Raman spectroscopy for detecting microplastics and nanoplastics in aquatic environments
This study evaluated surface-enhanced Raman spectroscopy (SERS) as a method for detecting and identifying microplastics and nanoplastics in aquatic environments, demonstrating its potential for detecting particles too small for conventional spectroscopy while noting remaining challenges for field deployment.
Detection of blue nanoplastics using resonance Raman spectroscopy coupled with plasmonic nanostructured substrates
Researchers developed a method for detecting blue-colored nanoplastics using resonance Raman spectroscopy combined with plasmonic nanostructured substrates as surface-enhanced Raman scattering (SERS) substrates. The approach addressed the challenge of detecting sub-micron particles in complex environmental matrices where physical and chemical aging alter nanoplastic signatures.