Control of particle trapping in solid-state nanopores with magnetic functionalities: An overviewShow others and affiliations
2022 (English)In: Proceedings of SPIE - The International Society for Optical Engineering: Nanophotonics IX / [ed] David L. Andrews, Angus J. Bain, Jean-Michel Nunzi, SPIE - International Society for Optical Engineering, 2022, article id 1213111Conference paper, Published paper (Refereed)
Abstract [en]
In the last decade, solid-state nanopores have been intensively investigated as label-free detectors of for single biological entities, such as protein chains or DNA molecules. With this approach, single entities are typically driven through a nanopore by applying an external electrical potential. However, this method cannot enable control over the speed of translocation, thus limiting the signal integration time. The most explored approach to introduce control of the translocation speed is based on trapping. In particular, a long acquisition time can be obtained by trapping a nanoparticle tagged with molecules close to a nanopore. The trapping phenomena can be generated by means of external stimuli such as light excitation and magnetic field application, obtaining respectively the so-called optical and magnetic trapping. Magnetic trapping, in particular, has been less explored but can be a useful approach to obtain very large trapping forces without interfering with other optical exitations that can be used for spectroscopic purposes. Here, we will briefly summarize the major examples of magnetic trapping approaches reported so far in solid-state nanopore technology.
Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2022. article id 1213111
Series
Nanophotonics, ISSN 0277786X, E-ISSN 1996756X ; 9
Keywords [en]
enhanced spectroscopy, localized plasmons, magnetic force, magnetoplasmonics, nanopores, optical trapping, plasmonic nanopore, solid-state nanopore
National Category
Atom and Molecular Physics and Optics Condensed Matter Physics
Identifiers
URN: urn:nbn:se:umu:diva-198190DOI: 10.1117/12.2622218ISI: 000837992000034Scopus ID: 2-s2.0-85133599225ISBN: 9781510651388 (print)ISBN: 9781510651395 (electronic)OAI: oai:DiVA.org:umu-198190DiVA, id: diva2:1683741
Conference
SPIE PHOTONICS EUROPE, 3 April - 23 May 2022 Strasbourg, France
2022-07-182022-07-182024-07-02Bibliographically approved