# Kinetic Criticality in Linker-Mediated Colloidal Aggregation

Source: [Kinetic Criticality in Linker-Mediated Colloidal Aggregation](<https://www.sota2.com/research/paper/6a30d8c7d33dfb23e783ce4a>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-06-17T05:00:05.807Z

Authors: Alexei V. Tkachenko, Soojung Lee, Zohar A. Arnon, Oleg Gang

Published: 2026-06-13T17:57:26.000Z

## Abstract

Linker-mediated aggregation plays an important role in modern nanoscience. We demonstrate that it departs sharply from classical Smoluchowski kinetics because cluster reactivity evolves during growth. Combining theory with DNA-linked gold-nanoparticle experiments, we establish kinetic critical point controlled by linker abundance. Below threshold, active linkers are depleted and growth arrests; above threshold, clusters accumulate reactive sites, self-accelerate, and cross over to diffusion-limited coarsening. Experiments verify the predicted arrest, accelerated growth, and scaling collapse.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2606.15415>)

[PDF](<https://arxiv.org/pdf/2606.15415.pdf>)