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Simultaneous Nanolocal Polymer and In Situ Readout Unit Placement in Mesoporous Separation Layers

Stanzel, Mathias ; Zhao, Lucy ; Mohammadi, Reza ; Pardehkhorram, Raheleh ; Kunz, Ulrike ; Vogel, Nicolas ; Andrieu-Brunsen, Annette (2021)
Simultaneous Nanolocal Polymer and In Situ Readout Unit Placement in Mesoporous Separation Layers.
In: Analytical Chemistry, 2021, 93 (13)
doi: 10.26083/tuprints-00019734
Article, Secondary publication, Publisher's Version

Copyright Information: CC BY-NC-ND 4.0 International - Creative Commons, Attribution NonCommercial, NoDerivs.

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Item Type: Article
Type of entry: Secondary publication
Title: Simultaneous Nanolocal Polymer and In Situ Readout Unit Placement in Mesoporous Separation Layers
Language: English
Date: 2021
Place of Publication: Darmstadt
Year of primary publication: 2021
Publisher: ACS Publications
Journal or Publication Title: Analytical Chemistry
Volume of the journal: 93
Issue Number: 13
DOI: 10.26083/tuprints-00019734
Corresponding Links:
Origin: Secondary publication service

Bioinspired solid-state nanopores and nanochannels have attracted interest in the last two decades, as they are envisioned to advance future sensing, energy conversion, and separation concepts. Although much effort has been made regarding functionalization of these materials, multifunctionality and accurate positioning of functionalities with nanoscale precision still remain challenging. However, this precision is necessary to meet transport performance and complexity of natural pores in living systems, which are often based on nonequilibrium states and compartmentalization. In this work, a nanolocal functionalization and simultaneous localized sensing strategy inside a filtering mesoporous film using precisely placed plasmonic metal nanoparticles inside mesoporous films with pore accessibility control is demonstrated. A single layer of gold nanoparticles is incorporated into mesoporous thin films with precise spatial control along the nanoscale layer thickness. The local surface plasmon resonance is applied to induce a photopolymerization leading to a nanoscopic polymer shell around the particles and thus nanolocal polymer placement inside the mesoporous material. As near-field modes are sensitive to the dielectric properties of their surrounding, the in situ sensing capability is demonstrated using UV–vis spectroscopy. It is demonstrated that the sensing sensitivity only slightly decreases upon functionalization. The presented nanolocal placement of responsive functional polymers into nanopores offers a simultaneous filtering and nanoscopic readout function. Such a nanoscale local control is envisioned to have a strong impact onto the development of new transport and sensor concepts, especially as the system can be developed into higher complexity using different metal nanoparticles and additional design of mesoporous film filtering properties.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-197348
Additional Information:

Supplement: https://ndownloader.figstatic.com/files/26842337

Classification DDC: 500 Science and mathematics > 540 Chemistry
Divisions: 07 Department of Chemistry > Ernst-Berl-Institut > Fachgebiet Makromolekulare Chemie
Date Deposited: 13 Oct 2021 14:11
Last Modified: 09 Jan 2023 08:38
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/19734
PPN: 503408069
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