Freestanding polyelectrolyte films as sensors for osmotic pressure
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
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 deformation as a function of the osmotic pressure and present an analytical theory that fully describes the data. Thus, osmotic pressures can be determined quantitatively. The individual osmotic-sensitive elements have only microscopic dimensions, and arrays can be easily produced.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 1985-1989 |
Seitenumfang | 5 |
Fachzeitschrift | ChemPhysChem |
Jahrgang | 7 |
Ausgabenummer | 9 |
Publikationsstatus | Veröffentlicht - 11 Sept. 2006 |
Peer-Review-Status | Ja |
Extern publiziert | Ja |
Externe IDs
PubMed | 16929555 |
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Schlagworte
ASJC Scopus Sachgebiete
Schlagwörter
- Membranes, Microstructures, Osmotic pressure, Polyelectrolyte multilayers, Sensors