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Freestanding polyelectrolyte films as sensors for osmotic pressure

Title data

Nolte, Marc ; Dönch, Ingo ; Fery, Andreas:
Freestanding polyelectrolyte films as sensors for osmotic pressure.
In: ChemPhysChem. Vol. 7 (2006) Issue 9 . - pp. 1985-1989.
ISSN 1439-4235
DOI: https://doi.org/10.1002/cphc.200600300

Official URL: Volltext

Abstract in another language

Freestanding ultrathin polyelectrolyte-multilayer membranes, transferred to topographically structured polydimethylsiloxane (PDMS), are used as mechanical sensors. Due to the membranes' semipermeability, high-molecular-weight molecules can be either entrapped inside them or excluded, thus generating an osmotic pressure. This leads to a deformation. We investigate the deformotion as a function of the osmotic pressure and present an analytical theory that fully describes the data. Thus, osmotic pressures con be determined quantitatively. The individual osmotic-sensitive elements have only microscopic dimensions, and arrays con be easily produced.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors > Chair Physical Chemistry II - Univ.-Prof. Dr. Andreas Fery
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Physical Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Former Professors
Result of work at the UBT: No
DDC Subjects: 500 Science > 500 Natural sciences
500 Science > 530 Physics
500 Science > 540 Chemistry
Date Deposited: 09 Dec 2014 08:15
Last Modified: 27 Mar 2015 08:16
URI: https://eref.uni-bayreuth.de/id/eprint/4034