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Rizvi MH, Wang R, Schubert J, Crumpler WD, Rossner C, Oldenburg AL, Fery A, Tracy JB. Magnetic Alignment for Plasmonic Control of Gold Nanorods Coated with Iron Oxide Nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2203366. [PMID: 35679599 DOI: 10.1002/adma.202203366] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Plasmonic nanoparticles that can be manipulated with magnetic fields are of interest for advanced optical applications, diagnostics, imaging, and therapy. Alignment of gold nanorods yields strong polarization-dependent extinction, and use of magnetic fields is appealing because they act through space and can be quickly switched. In this work, cationic polyethyleneimine-functionalized superparamagnetic Fe3 O4 nanoparticles (NPs) are deposited on the surface of anionic gold nanorods coated with bovine serum albumin. The magnetic gold nanorods (MagGNRs) obtained through mixing maintain the distinct optical properties of plasmonic gold nanorods that are minimally perturbed by the magnetic overcoating. Magnetic alignment of the MagGNRs arising from magnetic dipolar interactions on the anisotropic gold nanorod core is comprehensively characterized, including structural characterization and enhancement (suppression) of the longitudinal surface plasmon resonance and suppression (enhancement) of the transverse surface plasmon resonance for light polarized parallel (orthogonal) to the magnetic field. The MagGNRs can also be driven in rotating magnetic fields to rotate at frequencies of at least 17 Hz. For suitably large gold nanorods (148 nm long) and Fe3 O4 NPs (13.4 nm diameter), significant alignment is possible even in modest (<500 Oe) magnetic fields. An analytical model provides a unified understanding of the magnetic alignment of MagGNRs.
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Affiliation(s)
- Mehedi H Rizvi
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Ruosong Wang
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute for Physical Chemistry and Polymer Physics, 01069, Dresden, Germany
| | - Jonas Schubert
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute for Physical Chemistry and Polymer Physics, 01069, Dresden, Germany
| | - William D Crumpler
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695, USA
| | - Christian Rossner
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute for Physical Chemistry and Polymer Physics, 01069, Dresden, Germany
- Dresden Center for Intelligent Materials (DCIM), Technische Universität Dresden, 01069, Dresden, Germany
| | - Amy L Oldenburg
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute for Physical Chemistry and Polymer Physics, 01069, Dresden, Germany
- Chair for Physical Chemistry of Polymeric Materials, Technische Universität Dresden, 01062, Dresden, Germany
| | - Joseph B Tracy
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695, USA
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Lassenberger A, Scheberl A, Batchu KC, Cristiglio V, Grillo I, Hermida-Merino D, Reimhult E, Baccile N. Biocompatible Glyconanoparticles by Grafting Sophorolipid Monolayers on Monodispersed Iron Oxide Nanoparticles. ACS APPLIED BIO MATERIALS 2019; 2:3095-3107. [DOI: 10.1021/acsabm.9b00427] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea Lassenberger
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences Vienna, Institute for Biologically Inspired Materials, Muthgasse 11/II, 1190 Vienna, Austria
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Andrea Scheberl
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences Vienna, Institute for Biologically Inspired Materials, Muthgasse 11/II, 1190 Vienna, Austria
| | | | - Viviana Cristiglio
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Isabelle Grillo
- Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Daniel Hermida-Merino
- ESRF, The European Synchrotron, 71 Avenue des Martyrs, Grenoble 38042 CEDEX 9, France
| | - Erik Reimhult
- Department of Nanobiotechnology, University of Natural Resources and Life Sciences Vienna, Institute for Biologically Inspired Materials, Muthgasse 11/II, 1190 Vienna, Austria
| | - Niki Baccile
- Sorbonne Université, Centre National de la Recherche Scientifique, Laboratoire de Chimie de la Matière Condensée de Paris, LCMCP, Paris F-75005, France
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Reimhult E, Schroffenegger M, Lassenberger A. Design Principles for Thermoresponsive Core-Shell Nanoparticles: Controlling Thermal Transitions by Brush Morphology. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7092-7104. [PMID: 31035760 PMCID: PMC6551573 DOI: 10.1021/acs.langmuir.9b00665] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/17/2019] [Indexed: 05/15/2023]
Abstract
In this feature article, we summarize our recent work on understanding and controlling the thermal behavior of nanoparticles grafted with thermoresponsive polymer shells. Precision synthesis of monodisperse superparamagnetic iron oxide nanocrystals was combined with irreversible dense grafting of nitrodopamide-anchored thermoresponsive polymer chains. We provide an overview of how the dense and stable grafting of biomedically relevant polymers, including poly(ethylene glycol), poly( N-isopropylacrylamide), polysarcosin, and polyoxazolines, can be achieved. This platform has made it possible for us to demonstrate that the polymer brush geometry, as defined by the nanoparticle core and relative polymer brush size, determines the thermal transitions of the polymer brush. We furthermore summarize our work on how the polymer shell transitions and nanoparticle aggregation can be tuned. With the independent variation of the core and the shell, we can optimize and precisely control the thermally controlled solubility of our system. Finally, our feature article gives examples relevant to current and future applications. We show how the thermal response of the shell influences the nanoparticle performance in biological fluids and interactions with proteins and cells, also under purely magnetic actuation of the nanoparticles through the superparamagnetic iron oxide core.
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Affiliation(s)
- Erik Reimhult
- Institute
for Biologically Inspired Materials, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, Muthgasse 11, 1190 Vienna, Austria
| | - Martina Schroffenegger
- Institute
for Biologically Inspired Materials, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, Muthgasse 11, 1190 Vienna, Austria
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