Surface stress of polyelectrolyte adsorption measured by micromechanical cantilever sensors

Masaya Toda; Akiko Nakamura Itakura; Karsten Büscher; Karlheinz Graf; Rüdiger Berger

doi:10.1380/ejssnt.2006.96

Surface stress of polyelectrolyte adsorption measured by micromechanical cantilever sensors

Masaya Toda, Akiko Nakamura Itakura, Karsten Büscher, Karlheinz Graf, Rüdiger Berger

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We studied the mechanical stress during the adsorption process of polyallylamine hydrochloride (PAH) and polystyrenesulfonate (PSS) polyelectrolytes using highly sensitive micromechancial cantilever sensors (MCS). Single side adsorption was achieved by functionalizing individual MCS with a 2-mercatoethylamine (2-MEA) self-assembled monolayers. Exposure of the MCS to PAH solution resulted in a constant surface stress change of 1.6±0.2 N/m between the 2-MEA functionalized and silicon sensors. We attribute the surface stress change to the formation of a stable PAH polyelectrolyte layer on top of the silicon surface. We found that a second layer consisting of PSS did not result in a negligible surface stress change.

Original language	English
Pages (from-to)	96-99
Number of pages	4
Journal	e-Journal of Surface Science and Nanotechnology
Volume	4
DOIs	https://doi.org/10.1380/ejssnt.2006.96
Publication status	Published - 2006 Jan 19
Externally published	Yes

Keywords

Adsorption kinetics
Biological molecules
Biosensing and devices
Nano-films
Surface stress

ASJC Scopus subject areas

Biotechnology
Bioengineering
Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1380/ejssnt.2006.96

Cite this

@article{ae5033335b7040aa95f7cc384765af8e,

title = "Surface stress of polyelectrolyte adsorption measured by micromechanical cantilever sensors",

abstract = "We studied the mechanical stress during the adsorption process of polyallylamine hydrochloride (PAH) and polystyrenesulfonate (PSS) polyelectrolytes using highly sensitive micromechancial cantilever sensors (MCS). Single side adsorption was achieved by functionalizing individual MCS with a 2-mercatoethylamine (2-MEA) self-assembled monolayers. Exposure of the MCS to PAH solution resulted in a constant surface stress change of 1.6±0.2 N/m between the 2-MEA functionalized and silicon sensors. We attribute the surface stress change to the formation of a stable PAH polyelectrolyte layer on top of the silicon surface. We found that a second layer consisting of PSS did not result in a negligible surface stress change.",

keywords = "Adsorption kinetics, Biological molecules, Biosensing and devices, Nano-films, Surface stress",

author = "Masaya Toda and Itakura, {Akiko Nakamura} and Karsten B{\"u}scher and Karlheinz Graf and R{\"u}diger Berger",

year = "2006",

month = jan,

day = "19",

doi = "10.1380/ejssnt.2006.96",

language = "English",

volume = "4",

pages = "96--99",

journal = "e-Journal of Surface Science and Nanotechnology",

issn = "1348-0391",

publisher = "Surface Science Society of Japan",

}

TY - JOUR

T1 - Surface stress of polyelectrolyte adsorption measured by micromechanical cantilever sensors

AU - Toda, Masaya

AU - Itakura, Akiko Nakamura

AU - Büscher, Karsten

AU - Graf, Karlheinz

AU - Berger, Rüdiger

PY - 2006/1/19

Y1 - 2006/1/19

N2 - We studied the mechanical stress during the adsorption process of polyallylamine hydrochloride (PAH) and polystyrenesulfonate (PSS) polyelectrolytes using highly sensitive micromechancial cantilever sensors (MCS). Single side adsorption was achieved by functionalizing individual MCS with a 2-mercatoethylamine (2-MEA) self-assembled monolayers. Exposure of the MCS to PAH solution resulted in a constant surface stress change of 1.6±0.2 N/m between the 2-MEA functionalized and silicon sensors. We attribute the surface stress change to the formation of a stable PAH polyelectrolyte layer on top of the silicon surface. We found that a second layer consisting of PSS did not result in a negligible surface stress change.

AB - We studied the mechanical stress during the adsorption process of polyallylamine hydrochloride (PAH) and polystyrenesulfonate (PSS) polyelectrolytes using highly sensitive micromechancial cantilever sensors (MCS). Single side adsorption was achieved by functionalizing individual MCS with a 2-mercatoethylamine (2-MEA) self-assembled monolayers. Exposure of the MCS to PAH solution resulted in a constant surface stress change of 1.6±0.2 N/m between the 2-MEA functionalized and silicon sensors. We attribute the surface stress change to the formation of a stable PAH polyelectrolyte layer on top of the silicon surface. We found that a second layer consisting of PSS did not result in a negligible surface stress change.

KW - Adsorption kinetics

KW - Biological molecules

KW - Biosensing and devices

KW - Nano-films

KW - Surface stress

UR - http://www.scopus.com/inward/record.url?scp=31044444482&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=31044444482&partnerID=8YFLogxK

U2 - 10.1380/ejssnt.2006.96

DO - 10.1380/ejssnt.2006.96

M3 - Article

AN - SCOPUS:31044444482

SN - 1348-0391

VL - 4

SP - 96

EP - 99

JO - e-Journal of Surface Science and Nanotechnology

JF - e-Journal of Surface Science and Nanotechnology

ER -

Surface stress of polyelectrolyte adsorption measured by micromechanical cantilever sensors

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this