Hydrodynamic confinement and capillary alignment of gold nanorods

I. Ahmad, H.P. Jansen, Henricus J.W. Zandvliet, Ernst S. Kooij

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

Controlling the alignment and orientation of nanorods on various surfaces poses major challenges. In this work, we investigate hydrodynamic confinement and capillary alignment of gold nanorod assembly on chemically stripe-patterned substrates. The surface patterns consist of alternating hydrophilic and hydrophobic micrometer wide stripes; a macroscopic wettability gradient enables controlling the dynamics of deposited suspension droplets. We show that drying of residual liquid on the hydrophilic stripes gives rise to spatially localized deposition and alignment of the nanorods. Moreover, a universal relation between the extent of order within the single layers of nanoparticles and the lateral dimension of the deposits is presented and discussed.
Original languageEnglish
Article number025301
Pages (from-to)025301-
Number of pages10
JournalNanotechnology
Volume27
Issue number2
DOIs
Publication statusPublished - 2016

Fingerprint

Nanorods
Gold
Hydrodynamics
Wetting
Suspensions
Drying
Deposits
Nanoparticles
Liquids
Substrates

Keywords

  • IR-100759
  • METIS-317151

Cite this

@article{e488feadbaf144308619d31103aea78d,
title = "Hydrodynamic confinement and capillary alignment of gold nanorods",
abstract = "Controlling the alignment and orientation of nanorods on various surfaces poses major challenges. In this work, we investigate hydrodynamic confinement and capillary alignment of gold nanorod assembly on chemically stripe-patterned substrates. The surface patterns consist of alternating hydrophilic and hydrophobic micrometer wide stripes; a macroscopic wettability gradient enables controlling the dynamics of deposited suspension droplets. We show that drying of residual liquid on the hydrophilic stripes gives rise to spatially localized deposition and alignment of the nanorods. Moreover, a universal relation between the extent of order within the single layers of nanoparticles and the lateral dimension of the deposits is presented and discussed.",
keywords = "IR-100759, METIS-317151",
author = "I. Ahmad and H.P. Jansen and Zandvliet, {Henricus J.W.} and Kooij, {Ernst S.}",
year = "2016",
doi = "10.1088/0957-4484/27/2/025301",
language = "English",
volume = "27",
pages = "025301--",
journal = "Nanotechnology",
issn = "0957-4484",
publisher = "IOP Publishing Ltd.",
number = "2",

}

Hydrodynamic confinement and capillary alignment of gold nanorods. / Ahmad, I.; Jansen, H.P.; Zandvliet, Henricus J.W.; Kooij, Ernst S.

In: Nanotechnology, Vol. 27, No. 2, 025301, 2016, p. 025301-.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Hydrodynamic confinement and capillary alignment of gold nanorods

AU - Ahmad, I.

AU - Jansen, H.P.

AU - Zandvliet, Henricus J.W.

AU - Kooij, Ernst S.

PY - 2016

Y1 - 2016

N2 - Controlling the alignment and orientation of nanorods on various surfaces poses major challenges. In this work, we investigate hydrodynamic confinement and capillary alignment of gold nanorod assembly on chemically stripe-patterned substrates. The surface patterns consist of alternating hydrophilic and hydrophobic micrometer wide stripes; a macroscopic wettability gradient enables controlling the dynamics of deposited suspension droplets. We show that drying of residual liquid on the hydrophilic stripes gives rise to spatially localized deposition and alignment of the nanorods. Moreover, a universal relation between the extent of order within the single layers of nanoparticles and the lateral dimension of the deposits is presented and discussed.

AB - Controlling the alignment and orientation of nanorods on various surfaces poses major challenges. In this work, we investigate hydrodynamic confinement and capillary alignment of gold nanorod assembly on chemically stripe-patterned substrates. The surface patterns consist of alternating hydrophilic and hydrophobic micrometer wide stripes; a macroscopic wettability gradient enables controlling the dynamics of deposited suspension droplets. We show that drying of residual liquid on the hydrophilic stripes gives rise to spatially localized deposition and alignment of the nanorods. Moreover, a universal relation between the extent of order within the single layers of nanoparticles and the lateral dimension of the deposits is presented and discussed.

KW - IR-100759

KW - METIS-317151

U2 - 10.1088/0957-4484/27/2/025301

DO - 10.1088/0957-4484/27/2/025301

M3 - Article

VL - 27

SP - 025301-

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 2

M1 - 025301

ER -