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A scalable, extensive and non-destructive trapping method based on dielectric forces to collect nanoparticles and nano-biosensing tools

2024 61 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Afshin Rashid

Summary

Researchers developed a nanoscale trapping device that uses electrical forces to precisely capture and sort tiny particles, including nanoplastics, for detection and analysis. The technology works at low voltages and could be integrated into portable biosensors for rapid environmental monitoring. While primarily a technology advance, this kind of tool could improve our ability to detect and measure the nanoplastic particles that are most likely to enter the human body.

Note: The dynamic process of sorting and precise positioning of nanoparticle biomass in pre-defined microstructures is very important, however, this is a major obstacle to the realization of surface-sensitive nanobiosensors and practical nanobiochips. A scalable, widespread and non-destructive trapping method based on dielectric forces is much needed for nanoparticle collection and nanobiosensing tools. Here, we present a vertical nanogap architecture with an electrode-insulator-electrode stack structure. Facilitate the generation of strong dielectric forces at low voltages, for precise capture and manipulation of nanoparticles and molecular assemblies, including lipid vesicles and amyloid-beta fibrillar proteins/oligomers. Our vertical nanoplastic platform allows low-voltage nanoparticles recorded in optical dimensional designs, providing new opportunities for the fabrication of advanced surface-sensitive sensors. Nano biosensors appear as a powerful alternative to conventional analytical techniques, as nanosensors perform highly sensitive, real-time, and high-frequency monitoring of pollutants without extensive sample preparation. Nano biosensors can be integrated into small devices for rapid screening and monitoring of a wide range of pollutants. Since the nano biosensor is an analytical device, used to detect a chemical substance, which is a combination of a biological component with a physicochemical detector. Sensitive biological element , for example tissue, micro-organisms , etc., component of material or biomimetic that interacts with nanoparticles.

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