Quick ID for Nanoparticles

Quick ID for Nanoparticles

Author: Xin Su

The broad application of nanoparticles with varied compositions and sizes calls for a rapid and accurate characterization method that can identify each individual type. Current techniques, such as electron microscopy, are far from being cost-effective.

Mohammad Reza Hormozi-Nezhad, Sharif University of Technology, Tehran, Iran, Morteza Mahmoudi, Stanford University, CA, USA, and co-workers have developed a sensor array based on the optical responses of a variety of dyes to different nanoparticles. The array yields unique color dot patterns upon interaction with nanoparticles, thus enabling the facile and straightforward identification of particles, ranging from polymer-based nanobeads to quantum dots.

The researchers have demonstrated over 400 successful trial runs without any misclassification on this colorimetric sensing platform, making it a promising candidate for general nanoparticle identification and characterization.


 

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