We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Enhanced Sensitivity of 3D-printed Terahertz Metamaterials with a Vertical Gap Structure for Single Microplastic Particle Detection
AI summary Read the abstract
Researchers demonstrated detection of single microplastic particles using 3D-printed terahertz metamaterials featuring a vertical gap structure that enhances dielectric sensitivity and concentrates electric fields more effectively than conventional 2D and 3D designs. The vertical gap configuration produced the largest resonance shift, enabling detection of individual microplastic particles at high sensitivity.
We demonstrate detection of single microplastic particle using 3D-printed terahertz metamaterials with a vertical gap structure. These 3D metamaterials show higher dielectric sensitivity and enhanced electric field concentration compared to conventional 2D and 3D metamaterials without a vertical gap. Simulation results show that these 3D metamaterials with a vertical gap exhibit the largest resonant frequency shift, indicating their superior detection performance.
More Papers Like This
Detection of Polystyrene Microplastic Particles in Water Using Surface-Functionalized Terahertz Microfluidic Metamaterials
AI summary Read the abstract
Researchers developed a surface-functionalized terahertz metamaterial microfluidic sensor for detecting polystyrene microplastic particles in water, demonstrating that microplastics captured at functionalized gap structures shift the resonant frequency of the metamaterial, enabling label-free detection with findings validated by finite-difference time-domain simulations.
Excitation of high Q-factor Fano resonance in asymmetric THz metamaterial for microplastics sensing applications
AI summary Read the abstract
Researchers designed a terahertz (THz) metasurface sensor — a structured material that interacts with light at microwave-like frequencies — achieving high sensitivity by exploiting a phenomenon called Fano resonance, which produces a very sharp detection signal. The sensor's high quality factor and stability across viewing angles make it well-suited for detecting and identifying microplastic particles by their unique optical signatures.
Microwall‐Integrated Terahertz Metasurfaces for Spatially Guided Label‐Free Sensing of Micrometer‐Scale Plastic Particles
AI summary Read the abstract
Researchers built a tiny lab device using terahertz light (a type of radiation) and microscopic walls to trap and detect plastic particles as small as 3.1 micrometers. In lab tests, the walls increased the number of trapped polystyrene particles up to 12 times, and the device's signal shifted in proportion to particle concentration.
Sensitivity Mapping of a Terahertz Split-Ring Resonator Metasurface for Local Microplastic Detection in Water: Effects of Particle Position and Shape
AI summary Read the abstract
Scientists tested a tiny sensor design that uses special light waves to detect plastic particles in water without needing to prepare or isolate samples first, a much faster approach than current methods. This early-stage computer modeling study found that the sensor's accuracy depends on exactly where and what shape the plastic particle is, which are important details to work out before it can become a real tool for spotting microplastics in our drinking water.
Ultra-compact quintuple-band terahertz metamaterial biosensor for enhanced blood cancer diagnostics
AI summary Read the abstract
Engineers designed an advanced terahertz-frequency biosensor that can distinguish between normal blood cells and cancerous blood cells with high sensitivity. While not directly about microplastics, this type of sensor technology could potentially be adapted to detect nanoplastic particles in blood samples, advancing our ability to measure human exposure to plastic pollution.
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.