# Chemically Active Nanodroplets in a Multi-Component Fluid

## TL;DR

This paper models chemically active nanodroplets in multi-component fluids, revealing non-equilibrium behaviors like oscillating droplet sizes and molecular sorting, with potential for nanoscale reaction control.

## Contribution

It introduces a novel model of chemically active particles with state-dependent interactions, demonstrating complex behaviors arising from simple rules.

## Key findings

- Oscillations of droplet size observed
- Molecular sorting mechanisms identified
- Potential for spatio-temporal control of reactions

## Abstract

We introduce a model of chemically active particles of a multi-component fluid that can change their interactions with other particles depending on their state. Since such switching of interactions can only be maintained by the input of chemical energy, the system is inherently non-equilibrium. Focusing on a scenario where the equilibrium interactions would lead to condensation into a liquid droplet, and despite the relative simplicity of the interaction rules, these systems display a wealth of interesting and novel behaviors such as oscillations of droplet size and molecular sorting, and raise the possibility of spatio-temporal control of chemical reactions on the nanoscale