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Titolo:
Micromanipulation of Langmuir-monolayers with optical tweezers
Autore:
Wurlitzer, S; Lautz, C; Liley, M; Duschl, C; Fischer, TM;
Indirizzi:
Max Planck Inst Colloids & Interfaces, D-14476 Golm, Germany Max Planck Inst Colloids & Interfaces Golm Germany D-14476 Golm, Germany Ecole Polytech Fed Lausanne, Dept Chim, Lab Chim Phys Polymeres & Membranes, CH-1015 Lausanne, Switzerland Ecole Polytech Fed Lausanne Lausanne Switzerland CH-1015 ne, Switzerland CSEM SA, CH-2007 Neuchatel, Switzerland CSEM SA Neuchatel Switzerland CH-2007 SA, CH-2007 Neuchatel, Switzerland Newport GMBH, D-64295 Darmstadt, Germany Newport GMBH Darmstadt Germany D-64295 GMBH, D-64295 Darmstadt, Germany Univ Leipzig, Fak Phys, D-04103 Leipzig, Germany Univ Leipzig Leipzig Germany D-04103 Fak Phys, D-04103 Leipzig, Germany
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 1, volume: 105, anno: 2001,
pagine: 182 - 187
SICI:
1520-6106(20010111)105:1<182:MOLWOT>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIR-WATER-INTERFACE; PHASE-TRANSITIONS; BREWSTER-ANGLE; LIPID MONOLAYERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Fischer, TM Max Planck Inst Colloids & Interfaces, Muhlenberg 1, D-14476 Golm, Germany Max Planck Inst Colloids & Interfaces Muhlenberg 1 Golm Germany D-14476
Citazione:
S. Wurlitzer et al., "Micromanipulation of Langmuir-monolayers with optical tweezers", J PHYS CH B, 105(1), 2001, pp. 182-187

Abstract

A technique for the manipulation of Langmuir-monolayers at the air/water interface is presented. Optical tweezers are combined with fluorescence and Brewster angle microscopy to produce a system capable of mechanical and thermal handling of monolayers on a micrometer scale. The viscoelastic, electrical, and thermodynamic properties of the monolayer can be determined by analysis of the perturbations of its structure. A method for force and heat calibration of the tweezers is given. Both kinds of micromanipulations are applied to the star shaped condensed domains in liquid expanded surroundingsof bis[8-(1,2-dipalmitoyl-snglycero-3 -phosphoryl)-3,6-dioxaoctyl]disulfide ("thiolipid") monolayers. The stability of the stars and the consequence of their interlocking on the interfacial flow are investigated.

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Documento generato il 04/04/20 alle ore 23:20:10