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Peptoid-Directed Assembly of CdSe Nanoparticles​
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December 26, 2020

Monahan et al Highlight Graphic_Peptoid

Scientific Achievement

Used components that are tunable at an atomic-level to create a self-assembling hybrid material that is generalizable in composition and structure.

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Significance and Impact

This work identifies design parameters to create compatible and stable hybrid assemblies between peptoids and semiconducting nanoparticles.

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Research Details

  • CdSe nanoparticles were shown to assemble onto peptoid nanostructures with variability both in the peptoid structure (tube or sheet) and size of the CdSe.

  • Changing the amount of maleimide introduced during peptoid self-assembly allowed control over number of particles bound to a given peptoid sheet.

  • The binding mechanism between the peptoid and CdSe was investigated using ¹H NMR to determine importance of functional groups both on the QDs and peptoids

Maleimide-containing peptoid tubes and sheets used to assemble CdSe QDs at varying densities depending on maleimide concentration.

Monahan, M., B. Cai, T. Jian, S. Zhang, G. Zhu, C-L Chen, J.J. De Yoreo, and B. Cossairt. (2021). Peptoid-directed assembly of CdSe nanoparticles. Nanosale 13: 1273-1282. DOI: 10.1039/D0NR07509D

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Work performed at the University of Washington and Pacific Northwest National Laboratory

Thrust 1: Emergence of Order: Research

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