Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films

Julia Witt; Daniel Mandler; Gunther Wittstock

doi:10.1149/06636.0001ecst

Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films

Julia Witt, Daniel Mandler, Gunther Wittstock

Institute of Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Iron oxide nanoparticles (Fe₃O₄-NP) were compressed together with oleic acid (OA) in a Langmuir-Blodgett trough. Optimized dilution of the NP allowed the transfer of two-dimensional nanocomposites of Fe₃O₄-NP and OA to gold substrates. The characterization of the two-dimensional composite by scanning force microscopy (SFM) showed the existence of a sub-monolayer coverage with a few NP being pushed into the second layer. Polarization modulation infrared reflection absorption spectra (PM IRRAS) showed the presence of oleic acid. The nanoparticles could be removed in an external magnetic field of a permanent magnet as evidenced by SFM while the OA monolayer was left on the gold substrate as shown by PM IRRAS. Such composite layers can be used for the controlled release of specified small amount of intact NP.

Original language	English
Title of host publication	Nano/Biosensors and Actuators
Editors	A. L. Simonian, B. A. Chin, N. Wu, S. Mitra, L. A. Nagahara, D. Cliffel, Z. P. Aguilar, J. E. Koehne
Publisher	Electrochemical Society Inc.
Pages	1-7
Number of pages	7
Edition	36
ISBN (Electronic)	9781607686590
DOIs	https://doi.org/10.1149/06636.0001ecst
State	Published - 2015
Event	Symposium on Nano/Biosensors and Actuators - 227th ECS Meeting - Chicago, United States Duration: 24 May 2015 → 28 May 2015

Publication series

Name	ECS Transactions
Number	36
Volume	66
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Symposium on Nano/Biosensors and Actuators - 227th ECS Meeting
Country/Territory	United States
City	Chicago
Period	24/05/15 → 28/05/15

Bibliographical note

Publisher Copyright:
© The Electrochemical Society.

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10.1149/06636.0001ecst

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Witt, J., Mandler, D., & Wittstock, G. (2015). Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films. In A. L. Simonian, B. A. Chin, N. Wu, S. Mitra, L. A. Nagahara, D. Cliffel, Z. P. Aguilar, & J. E. Koehne (Eds.), Nano/Biosensors and Actuators (36 ed., pp. 1-7). (ECS Transactions; Vol. 66, No. 36). Electrochemical Society Inc.. https://doi.org/10.1149/06636.0001ecst

Witt, Julia ; Mandler, Daniel ; Wittstock, Gunther. / Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films. Nano/Biosensors and Actuators. editor / A. L. Simonian ; B. A. Chin ; N. Wu ; S. Mitra ; L. A. Nagahara ; D. Cliffel ; Z. P. Aguilar ; J. E. Koehne. 36. ed. Electrochemical Society Inc., 2015. pp. 1-7 (ECS Transactions; 36).

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title = "Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films",

abstract = "Iron oxide nanoparticles (Fe3O4-NP) were compressed together with oleic acid (OA) in a Langmuir-Blodgett trough. Optimized dilution of the NP allowed the transfer of two-dimensional nanocomposites of Fe3O4-NP and OA to gold substrates. The characterization of the two-dimensional composite by scanning force microscopy (SFM) showed the existence of a sub-monolayer coverage with a few NP being pushed into the second layer. Polarization modulation infrared reflection absorption spectra (PM IRRAS) showed the presence of oleic acid. The nanoparticles could be removed in an external magnetic field of a permanent magnet as evidenced by SFM while the OA monolayer was left on the gold substrate as shown by PM IRRAS. Such composite layers can be used for the controlled release of specified small amount of intact NP.",

author = "Julia Witt and Daniel Mandler and Gunther Wittstock",

note = "Publisher Copyright: {\textcopyright} The Electrochemical Society.; Symposium on Nano/Biosensors and Actuators - 227th ECS Meeting ; Conference date: 24-05-2015 Through 28-05-2015",

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Witt, J, Mandler, D & Wittstock, G 2015, Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films. in AL Simonian, BA Chin, N Wu, S Mitra, LA Nagahara, D Cliffel, ZP Aguilar & JE Koehne (eds), Nano/Biosensors and Actuators. 36 edn, ECS Transactions, no. 36, vol. 66, Electrochemical Society Inc., pp. 1-7, Symposium on Nano/Biosensors and Actuators - 227th ECS Meeting, Chicago, United States, 24/05/15. https://doi.org/10.1149/06636.0001ecst

Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films. / Witt, Julia; Mandler, Daniel; Wittstock, Gunther.
Nano/Biosensors and Actuators. ed. / A. L. Simonian; B. A. Chin; N. Wu; S. Mitra; L. A. Nagahara; D. Cliffel; Z. P. Aguilar; J. E. Koehne. 36. ed. Electrochemical Society Inc., 2015. p. 1-7 (ECS Transactions; Vol. 66, No. 36).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Mandler, Daniel

AU - Wittstock, Gunther

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AB - Iron oxide nanoparticles (Fe3O4-NP) were compressed together with oleic acid (OA) in a Langmuir-Blodgett trough. Optimized dilution of the NP allowed the transfer of two-dimensional nanocomposites of Fe3O4-NP and OA to gold substrates. The characterization of the two-dimensional composite by scanning force microscopy (SFM) showed the existence of a sub-monolayer coverage with a few NP being pushed into the second layer. Polarization modulation infrared reflection absorption spectra (PM IRRAS) showed the presence of oleic acid. The nanoparticles could be removed in an external magnetic field of a permanent magnet as evidenced by SFM while the OA monolayer was left on the gold substrate as shown by PM IRRAS. Such composite layers can be used for the controlled release of specified small amount of intact NP.

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Y2 - 24 May 2015 through 28 May 2015

ER -

Magnetically controlled release of dispersed iron oxide nanoparticles from imprinted organic thin films

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