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Updated: Jun 25, 2026

Ligand Nano-cluster Arrays in a Supported Lipid Bilayer

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Published on: April 23, 2017

Hexagonal close-packed array formed by selective adsorption onto hexagonal patterns.

N Matsukawa¹, K Nishio, K Sano

¹Advanced Technology Research Laboratories, Panasonic, 3-4 Hikaridai, Seika-cho, Soraku-gun, Kyoto 619-0237, Japan.

Langmuir : the ACS Journal of Surfaces and Colloids

|February 21, 2009

Summary

This summary is machine-generated.

Researchers created ordered ferritin arrays on titanium surfaces using specific binding peptides. This self-assembly method achieved optimal ordering by controlling pH for selective peptide adsorption onto titanium, not silicon dioxide.

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Atomically Traceable Nanostructure Fabrication

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Published on: July 17, 2015

Area of Science:

Biomaterials Engineering
Nanotechnology
Surface Chemistry

Background:

Self-assembly is a key strategy for creating ordered nanomaterials.
Controlling surface interactions is crucial for precise nanostructure formation.
Ferritin's unique structure allows for genetic modification and controlled assembly.

Purpose of the Study:

To create a patterned, hexagonally ordered array of ferritin molecules on a titanium surface.
To investigate the role of genetically modified titanium-specific binding peptides (minT1-LF) in self-assembly.
To optimize the self-assembly process by controlling surface selectivity and pH.

Main Methods:

Genetic modification of ferritin with titanium-specific binding peptides (minT1-LF).
Fabrication of hexagonal titanium (Ti) thin film islands on silicon substrates.
Self-assembly of modified ferritin onto Ti islands.
Quartz crystal microbalance (QCM) measurements to assess adsorption properties.
Optimization of pH for selective peptide adsorption.

Main Results:

A patterned two-dimensional hexagonally ordered array of ferritin molecules was successfully realized.
Optimal ordering was achieved at a specific pH, maximizing minT1-LF selectivity for Ti over silicon dioxide (SiO2).
QCM data showed strong, irreversible minT1-LF adsorption on Ti and weak, reversible adsorption on SiO2.
High concentration of minT1-LF on the Ti pattern promoted hexagonal close-packed ordering and axis alignment.

Conclusions:

Self-assembly of genetically modified ferritin using minT1-LF peptides provides a viable method for creating ordered nanomaterials on patterned surfaces.
Surface chemistry and pH control are critical parameters for achieving selective adsorption and high-degree ordering.
The strong affinity of minT1-LF for titanium enables precise control over ferritin array formation, with potential applications in nanotechnology and biomaterials.