dorsal/arxiv
View SchemaNanotrapping and the thermodynamics of optical tweezers
| Authors | W. Singer, T. A. Nieminen, N. R. Heckenberg, H. Rubinsztein-Dunlop |
|---|---|
| Categories | |
| ArXiv ID | physics/0702047 |
| URL | https://arxiv.org/abs/physics/0702047 |
| Journal | in R. Sang and J. Dobson (eds), Australian Institute of Physics (AIP) 17th National Congress 2006: Refereed Papers, (Australian Institute of Physics, 2006) [CD-ROM, unpaginated] |
Abstract
Particles that can be trapped in optical tweezers range from tens of microns down to tens of nanometres in size. Interestingly, this size range includes large macromolecules. We show experimentally, in agreement with theoretical expectations, that optical tweezers can be used to manipulate single molecules of polyethylene oxide suspended in water. The trapped molecules accumulate without aggregating, so this provides optical control of the concentration of macromolecules in solution. Apart from possible applications such as the micromanipulation of nanoparticles, nanoassembly, microchemistry, and the study of biological macromolecules, our results also provide insight into the thermodynamics of optical tweezers.
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"abstract": "Particles that can be trapped in optical tweezers range from tens of microns\ndown to tens of nanometres in size. Interestingly, this size range includes\nlarge macromolecules. We show experimentally, in agreement with theoretical\nexpectations, that optical tweezers can be used to manipulate single molecules\nof polyethylene oxide suspended in water. The trapped molecules accumulate\nwithout aggregating, so this provides optical control of the concentration of\nmacromolecules in solution. Apart from possible applications such as the\nmicromanipulation of nanoparticles, nanoassembly, microchemistry, and the study\nof biological macromolecules, our results also provide insight into the\nthermodynamics of optical tweezers.",
"arxiv_id": "physics/0702047",
"authors": [
"W. Singer",
"T. A. Nieminen",
"N. R. Heckenberg",
"H. Rubinsztein-Dunlop"
],
"categories": [
"physics.optics",
"physics.class-ph"
],
"journal_ref": "in R. Sang and J. Dobson (eds), Australian Institute of Physics\n (AIP) 17th National Congress 2006: Refereed Papers, (Australian Institute of\n Physics, 2006) [CD-ROM, unpaginated]",
"title": "Nanotrapping and the thermodynamics of optical tweezers",
"url": "https://arxiv.org/abs/physics/0702047"
},
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