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Updated: May 10, 2026

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications

Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications

Published on: February 7, 2021

Hybrid nanocolloids with programmed three-dimensional shape and material composition.

Andrew G Mark¹, John G Gibbs, Tung-Chun Lee

¹1] Max Planck Institute for Intelligent Systems, Heisenbergstraße 3, 70569 Stuttgart, Germany [2].

Nature Materials

|June 25, 2013

Summary

This summary is machine-generated.

Researchers developed a new method to create complex, 3D nanostructures with precise control over shape and material. This technique enables the fabrication of unique nanoscale materials with tunable optical and electromagnetic properties.

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Area of Science:

Materials Science
Nanotechnology
Optics

Background:

Controlling material properties necessitates simultaneous control over composition and shape, especially at the nanoscale.
Surface-energy minimization typically leads to highly symmetric structures, posing challenges for complex nanoscale designs.

Purpose of the Study:

To develop a versatile fabrication method for creating anisotropic three-dimensional (3D) nanocolloids with feature sizes down to 20 nm.
To demonstrate the ability to create 3D hybrid nanostructures with multiple functional materials and low symmetry.
To fabricate plasmonic nanohelices for applications as chiral metafluids with tunable chiroptical properties.

Main Methods:

Combination of low-temperature shadow deposition and nanoscale patterning.
Fabrication of 3D hybrid nanostructures and plasmonic nanohelices.

Main Results:

Achieved nanocolloids with anisotropic 3D shapes and feature sizes down to 20 nm.
Successfully grew 3D hybrid nanostructures with multiple functional materials and low symmetry.
Fabricated billions of plasmonic nanohelices exhibiting record circular dichroism and tunable chiroptical properties.

Conclusions:

The developed fabrication scheme offers a versatile approach for creating complex, anisotropic nanostructures.
The technique allows for precise control over material composition and shape at the nanoscale.
The resulting plasmonic nanohelices demonstrate potential for advanced applications in chiral optics and metafluids.