A Reproducible and Scalable Method for Producing Fluorescent Polystyrene Nanoparticles

28 June 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

In this work polystyrene nanoparticles (PS NPs) were fabricated from an emulsion of PS/toluene in water using various surfactants, and purified via dialysis in a simple procedure. The synthesis process was carried out at room temperature, without hazardous chemicals, and with a workload of 5 hours. The investigation was performed to evaluate the limits for production of PS NPs with comparable properties. A robust PS NP synthesis procedure was developed, repeated, and tested by three independent researches. The procedure was up-scaled to prove the applicability of the method and the NPs were prepared with four different hydrophobic dyes. All products were found to be comparable, and it was concluded that the method reported here can provide PS NPs with or without dye dopants, and that it provides access to PS NPs with an average diameter of 25 nm in a reproducible size distribution.

Keywords

nanoparticle synthesis
polystyrene nanoparticles
fluorescent materials
nanomaterials
fluorescent nanoparticles

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