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Related Experiment Video

Updated: May 27, 2026

Synthesis, Assembly, and Characterization of Monolayer Protected Gold Nanoparticle Films for Protein Monolayer Electrochemistry
14:18

Synthesis, Assembly, and Characterization of Monolayer Protected Gold Nanoparticle Films for Protein Monolayer Electrochemistry

Published on: October 4, 2011

Electrically bistable properties of layer-by-layer assembled multilayers based on protein nanoparticles.

Yongmin Ko1, Younghoon Kim, Hyunhee Baek

  • 1School of Advanced Materials Engineering, Kookmin University, Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Korea.

ACS Nano
|November 19, 2011
PubMed
Summary

Researchers developed nanoscale-memory devices using ferritin nanoparticles. These protein-based films exhibit reversible resistance changes controlled by voltage, enabling applications in bioinspired electronics.

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Area of Science:

  • Biophysics
  • Nanotechnology
  • Materials Science

Background:

  • Redox proteins exhibit reversible resistance changes crucial for bioelectrochemical applications.
  • Transition metal ions as cofactors significantly influence protein redox properties.

Purpose of the Study:

  • To demonstrate voltage-induced reversible resistance changes in dried ferritin nanoparticle films.
  • To explore ferritin nanoparticles as nanoscale-memory devices.
  • To investigate protein multilayers for bioinspired electronics.

Main Methods:

  • Fabrication of dried protein films using ferritin nanoparticles.
  • Application of external voltage to induce charge trapping/release.
  • Layer-by-layer assembly of protein multilayers.

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Last Updated: May 27, 2026

Synthesis, Assembly, and Characterization of Monolayer Protected Gold Nanoparticle Films for Protein Monolayer Electrochemistry
14:18

Synthesis, Assembly, and Characterization of Monolayer Protected Gold Nanoparticle Films for Protein Monolayer Electrochemistry

Published on: October 4, 2011

Ligand Nano-cluster Arrays in a Supported Lipid Bilayer
10:34

Ligand Nano-cluster Arrays in a Supported Lipid Bilayer

Published on: April 23, 2017

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer
10:11

Temperature-Controlled Assembly and Characterization of a Droplet Interface Bilayer

Published on: April 19, 2021

Main Results:

  • Ferritin nanoparticle films show reversible resistance changes due to Fe(III)/Fe(II) redox couples.
  • Individual ferritin nanoparticles function as nanoscale-memory devices.
  • Protein multilayer devices offer adjustable memory performance.

Conclusions:

  • Voltage-controlled resistance changes in ferritin films are demonstrated.
  • Ferritin nanoparticles serve as functional nanoscale-memory elements.
  • Protein multilayers pave the way for advanced bioinspired electronic devices.