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Updated: Sep 3, 2025

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

Constitutionally Selective Dynamic Covalent Nanoparticle Assembly.

Nicolas Marro¹, Rongtian Suo¹, Aaron B Naden¹

¹EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, U.K.

Journal of the American Chemical Society

|July 28, 2022

Summary

This summary is machine-generated.

Researchers developed dynamic covalent nanoparticles for precise nanoscale assembly. These reaction-enabled building blocks allow chemists to control the formation of complex heteromaterials, extending molecular synthesis principles to the nanoscale.

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Area of Science:

Materials Chemistry
Nanotechnology
Synthetic Chemistry

Background:

Controlling the assembly of complex nanoscale entities is a significant challenge in materials science.
Dynamic covalent nanoparticles offer a promising approach to extend molecular synthetic chemistry principles to the nanoscale.

Purpose of the Study:

To demonstrate the precise control over nanoscale assembly using dynamic covalent nanoparticles.
To investigate the selective formation of heteromaterials through nanoparticle-bound reactions and kinetic regioselectivity.

Main Methods:

Utilized two hydrazone-based dynamic covalent nanoparticles with complementary reactivity.
Triggered selective assembly using specific molecular instructions.
Characterized nanoparticle-bound reactions and developed kinetic models for the assembly network.

Main Results:

Achieved selective assembly of intimately mixed heteromaterial (Au-Pd) aggregates or materials enriched in one component.
Demonstrated that chemospecific reactions and nanoscale kinetic regioselectivity dictate connectivity and composition.
Developed kinetic models that successfully link molecular events to nanoscale assembly outcomes.

Conclusions:

Reaction-enabled nanoparticles provide a powerful platform for rational design and synthesis of nanoscale materials.
Predictive construction strategies using these nanoparticles can lead to a synthetic science capable of manipulating molecular and nanoscale components with equal proficiency.
This approach advances the ability to precisely arrange complex components for future materials chemistry.