Ion transport through polyelectrolyte multilayers

Susana Carregal-Romero; Philipp Rinklin; Susanne Schulze; Martin Schäfer; Andrea Ott; Dominik Hühn; Xiang Yu; Bernhard Wolfrum; Karl Michael Weitzel; Wolfgang J. Parak

doi:10.1002/marc.201300571

Ion transport through polyelectrolyte multilayers

Susana Carregal-Romero, Philipp Rinklin, Susanne Schulze, Martin Schäfer, Andrea Ott, Dominik Hühn, Xiang Yu, Bernhard Wolfrum, Karl Michael Weitzel, Wolfgang J. Parak

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

11 Scopus citations

Abstract

Polyelectrolyte multilayer (PEM) fi lms and capsules loaded with ion-sensitive fl uorophores can be used as ion-sensors for many applications including measurements of intracellular ion concentration. Previous studies have shown the infl uence of the PEM fi lms/shells on the specifi c response of encapsulated ion-sensitive fl uorophores. PEM shells are considered as semipermeable barriers between the environment and the encapsulated fl uorophores. Parameters such as the time response of the encapsulated sensor can be affected by the porosity and charge of the PEM shell. In this study, the time response of an encapsulated pH-sensitive fl uorophore towards pH changes in the surrounding environment is investigated. Furthermore, the conductance of PEM fi lms for potassium ions is determined.

Original language	English
Pages (from-to)	1820-1826
Number of pages	7
Journal	Macromolecular Rapid Communications
Volume	34
Issue number	23-24
DOIs	https://doi.org/10.1002/marc.201300571
State	Published - Dec 2013
Externally published	Yes

Keywords

Colloidal clusters
Depolarized dynamic light scattering
Nanoparticle assemblies
Polymer particles
Supracolloids

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10.1002/marc.201300571

Cite this

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title = "Ion transport through polyelectrolyte multilayers",

abstract = "Polyelectrolyte multilayer (PEM) fi lms and capsules loaded with ion-sensitive fl uorophores can be used as ion-sensors for many applications including measurements of intracellular ion concentration. Previous studies have shown the infl uence of the PEM fi lms/shells on the specifi c response of encapsulated ion-sensitive fl uorophores. PEM shells are considered as semipermeable barriers between the environment and the encapsulated fl uorophores. Parameters such as the time response of the encapsulated sensor can be affected by the porosity and charge of the PEM shell. In this study, the time response of an encapsulated pH-sensitive fl uorophore towards pH changes in the surrounding environment is investigated. Furthermore, the conductance of PEM fi lms for potassium ions is determined.",

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author = "Susana Carregal-Romero and Philipp Rinklin and Susanne Schulze and Martin Sch{\"a}fer and Andrea Ott and Dominik H{\"u}hn and Xiang Yu and Bernhard Wolfrum and Weitzel, {Karl Michael} and Parak, {Wolfgang J.}",

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language = "English",

volume = "34",

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TY - JOUR

T1 - Ion transport through polyelectrolyte multilayers

AU - Carregal-Romero, Susana

AU - Rinklin, Philipp

AU - Schulze, Susanne

AU - Schäfer, Martin

AU - Ott, Andrea

AU - Hühn, Dominik

AU - Yu, Xiang

AU - Wolfrum, Bernhard

AU - Weitzel, Karl Michael

AU - Parak, Wolfgang J.

PY - 2013/12

Y1 - 2013/12

N2 - Polyelectrolyte multilayer (PEM) fi lms and capsules loaded with ion-sensitive fl uorophores can be used as ion-sensors for many applications including measurements of intracellular ion concentration. Previous studies have shown the infl uence of the PEM fi lms/shells on the specifi c response of encapsulated ion-sensitive fl uorophores. PEM shells are considered as semipermeable barriers between the environment and the encapsulated fl uorophores. Parameters such as the time response of the encapsulated sensor can be affected by the porosity and charge of the PEM shell. In this study, the time response of an encapsulated pH-sensitive fl uorophore towards pH changes in the surrounding environment is investigated. Furthermore, the conductance of PEM fi lms for potassium ions is determined.

AB - Polyelectrolyte multilayer (PEM) fi lms and capsules loaded with ion-sensitive fl uorophores can be used as ion-sensors for many applications including measurements of intracellular ion concentration. Previous studies have shown the infl uence of the PEM fi lms/shells on the specifi c response of encapsulated ion-sensitive fl uorophores. PEM shells are considered as semipermeable barriers between the environment and the encapsulated fl uorophores. Parameters such as the time response of the encapsulated sensor can be affected by the porosity and charge of the PEM shell. In this study, the time response of an encapsulated pH-sensitive fl uorophore towards pH changes in the surrounding environment is investigated. Furthermore, the conductance of PEM fi lms for potassium ions is determined.

KW - Colloidal clusters

KW - Depolarized dynamic light scattering

KW - Nanoparticle assemblies

KW - Polymer particles

KW - Supracolloids

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SP - 1820

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JO - Macromolecular Rapid Communications

JF - Macromolecular Rapid Communications

IS - 23-24

ER -

Ion transport through polyelectrolyte multilayers

Abstract

Keywords

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