Three-dimensional sequential self-assembly of microscale objects

Hiroaki Onoe, Kiyoshi Matsumoto, Isao Shimoyama

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

The control of the sequential self-assembly of microscale objects with two assembly steps by changing the pH of the solution is analyzed. The processes that can separate assembled structures with a specific length from the others are needed. Fluidic separators with microchannels that can distinguish microbeads with a specific size from the other beads by liquid flow can be used for the separation of the assembled microstructures. It is possible to increase the number of assembly steps by using surfaces that have different IEP values, such as nickel or modified surfaces with terminal-functionalized self-assembled monolayers (SAM), to advance sequential self-assembly. This self-assembly control mechanism can be widely applied to combining microfabricated objects with colloidal particles or biological molecules, since the interactions used in the self-assembly are also dominant in colloidal aggregation/dispersion or in biomaterials, such as for the conformation of protein molecules.

Original languageEnglish
Pages (from-to)1383-1389
Number of pages7
JournalSmall
Volume3
Issue number8
DOIs
Publication statusPublished - 2007 Aug
Externally publishedYes

Fingerprint

Protein Conformation
Biocompatible Materials
Nickel
Microspheres
Self assembly
Molecules
Fluidics
Self assembled monolayers
Microchannels
Separators
Biomaterials
Conformations
Agglomeration
Proteins
Microstructure
Liquids

Keywords

  • Hydrophobicity
  • Microelectromechanical systems
  • Microstructures
  • Self-assembly
  • Surfaces

ASJC Scopus subject areas

  • Biomaterials
  • Engineering (miscellaneous)
  • Biotechnology
  • Medicine(all)

Cite this

Three-dimensional sequential self-assembly of microscale objects. / Onoe, Hiroaki; Matsumoto, Kiyoshi; Shimoyama, Isao.

In: Small, Vol. 3, No. 8, 08.2007, p. 1383-1389.

Research output: Contribution to journalArticle

Onoe, Hiroaki ; Matsumoto, Kiyoshi ; Shimoyama, Isao. / Three-dimensional sequential self-assembly of microscale objects. In: Small. 2007 ; Vol. 3, No. 8. pp. 1383-1389.
@article{368b4b9c11034c0a99167fa573872098,
title = "Three-dimensional sequential self-assembly of microscale objects",
abstract = "The control of the sequential self-assembly of microscale objects with two assembly steps by changing the pH of the solution is analyzed. The processes that can separate assembled structures with a specific length from the others are needed. Fluidic separators with microchannels that can distinguish microbeads with a specific size from the other beads by liquid flow can be used for the separation of the assembled microstructures. It is possible to increase the number of assembly steps by using surfaces that have different IEP values, such as nickel or modified surfaces with terminal-functionalized self-assembled monolayers (SAM), to advance sequential self-assembly. This self-assembly control mechanism can be widely applied to combining microfabricated objects with colloidal particles or biological molecules, since the interactions used in the self-assembly are also dominant in colloidal aggregation/dispersion or in biomaterials, such as for the conformation of protein molecules.",
keywords = "Hydrophobicity, Microelectromechanical systems, Microstructures, Self-assembly, Surfaces",
author = "Hiroaki Onoe and Kiyoshi Matsumoto and Isao Shimoyama",
year = "2007",
month = "8",
doi = "10.1002/smll.200600721",
language = "English",
volume = "3",
pages = "1383--1389",
journal = "Small",
issn = "1613-6810",
publisher = "Wiley-VCH Verlag",
number = "8",

}

TY - JOUR

T1 - Three-dimensional sequential self-assembly of microscale objects

AU - Onoe, Hiroaki

AU - Matsumoto, Kiyoshi

AU - Shimoyama, Isao

PY - 2007/8

Y1 - 2007/8

N2 - The control of the sequential self-assembly of microscale objects with two assembly steps by changing the pH of the solution is analyzed. The processes that can separate assembled structures with a specific length from the others are needed. Fluidic separators with microchannels that can distinguish microbeads with a specific size from the other beads by liquid flow can be used for the separation of the assembled microstructures. It is possible to increase the number of assembly steps by using surfaces that have different IEP values, such as nickel or modified surfaces with terminal-functionalized self-assembled monolayers (SAM), to advance sequential self-assembly. This self-assembly control mechanism can be widely applied to combining microfabricated objects with colloidal particles or biological molecules, since the interactions used in the self-assembly are also dominant in colloidal aggregation/dispersion or in biomaterials, such as for the conformation of protein molecules.

AB - The control of the sequential self-assembly of microscale objects with two assembly steps by changing the pH of the solution is analyzed. The processes that can separate assembled structures with a specific length from the others are needed. Fluidic separators with microchannels that can distinguish microbeads with a specific size from the other beads by liquid flow can be used for the separation of the assembled microstructures. It is possible to increase the number of assembly steps by using surfaces that have different IEP values, such as nickel or modified surfaces with terminal-functionalized self-assembled monolayers (SAM), to advance sequential self-assembly. This self-assembly control mechanism can be widely applied to combining microfabricated objects with colloidal particles or biological molecules, since the interactions used in the self-assembly are also dominant in colloidal aggregation/dispersion or in biomaterials, such as for the conformation of protein molecules.

KW - Hydrophobicity

KW - Microelectromechanical systems

KW - Microstructures

KW - Self-assembly

KW - Surfaces

UR - http://www.scopus.com/inward/record.url?scp=34547828804&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547828804&partnerID=8YFLogxK

U2 - 10.1002/smll.200600721

DO - 10.1002/smll.200600721

M3 - Article

C2 - 17594683

AN - SCOPUS:34547828804

VL - 3

SP - 1383

EP - 1389

JO - Small

JF - Small

SN - 1613-6810

IS - 8

ER -