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Related Experiment Video

Updated: Feb 26, 2026

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
08:39

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

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Detecting patchy nanoparticle assembly at the single-particle level.

S Pothorszky1, D Zámbó1, D Szekrényes1

  • 1Institute of Technical Physics and Materials Science, HAS Centre for Energy Research, 1121 Budapest, Konkoly-Thege M. str. 29-33, Hungary. andras.deak@energia.mta.hu.

Nanoscale
|July 14, 2017
PubMed
Summary

Researchers observed how patchy colloidal particles self-assemble into heterodimers. Spheres preferentially bind to the side of gold nanorods, not the charged tips, forming stable nanoscale building blocks.

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Area of Science:

  • Colloid and Surface Science
  • Nanotechnology
  • Materials Science

Background:

  • Patchy colloidal particles enable the study of spatially inhomogeneous interactions.
  • Understanding self-assembly is crucial for designing nanoscale building blocks.

Purpose of the Study:

  • To observe the in situ formation of a heterodimer from a patchy nanorod and a sphere at the single-particle level.
  • To investigate the driving forces and preferred configurations of colloidal assembly.

Main Methods:

  • In situ single-particle experimental observation.
  • Utilizing gold nanorods with charged tips and PEG-grafted sides.
  • Analyzing optical scattering spectra for structural determination via plasmon hybridization.
  • Finite element simulations of electric double layer interactions.

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Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment
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Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

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Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
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Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

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Related Experiment Videos

Last Updated: Feb 26, 2026

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
08:39

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

13.3K
Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment
09:13

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

8.0K
Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

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Main Results:

  • Direct observation of heterodimer formation between a nanorod and a sphere.
  • Spheres were found to bind to the side of nanorods, not the charged tips.
  • This side-binding configuration was confirmed as energetically favorable through simulations.

Conclusions:

  • In situ single-particle experiments are effective for characterizing self-assembling structures.
  • The study reveals unexpected binding preferences in patchy colloidal systems.
  • Findings contribute to the rational design of nanoscale building blocks.