Time-Resolved Thickness and Shape-Change Quantification using a Dual-Band Nanoplasmonic Ruler with Sub-Nanometer Resolution | Sciact - CRIS-system of Boreskov Institute of Catalysis

Time-Resolved Thickness and Shape-Change Quantification using a Dual-Band Nanoplasmonic Ruler with Sub-Nanometer Resolution Full article

Journal

ACS Nano
ISSN: 1936-0851 , E-ISSN: 1936-086X

Output data

Year: 2022, Volume: 16, Number: 10, Pages: 15814–15826 Pages count : 13 DOI: 10.1021/acsnano.2c04948

Tags

Layers, Sensors, Surface plasmon resonance, Thickness, Vesicles

Authors

Nugroho Ferry Anggoro Ardy ^1,2,3 , Świtlik Dominika ⁴ , Armanious Antonius ⁵ , O’Reilly Padraic ¹ , Darmadi Iwan ¹ , Nilsson Sara ¹ , Zhdanov Vladimir P. ^1,6 , Höök Fredrik ¹ , Antosiewicz Tomasz J. ^1,4 , Langhammer Christoph ¹

Affiliations

1	Department of Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden
2	Department of Physics and Astronomy, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
3	Department of Physics, Universitas Indonesia, Depok 16424, Indonesia
4	Faculty of Physics, University of Warsaw, 02-093 Warsaw, Poland
5	Department of Health Sciences and Technology, ETH Zurich, 8092 Zurich, Switzerland
6	Boreskov Institute of Catalysis, Russian Academy of Sciences, Novosibirsk 630090, Russia

Funding (4)

1	Knut and Alice Wallenberg Foundation	2016.0210
2	Stiftelsen för strategisk forskning	RMA15-0052
3	National Science Center	2017/25/B/ST3/00744
4	European Commission	101028262 H2020-MSCA-IF-2020 - Individual Fellowships

Time-resolved measurements of changes in the size and shape of nanobiological objects and layers are crucial to understand their properties and optimize their performance. Optical sensing is particularly attractive with high throughput and sensitivity, and label-free operation. However, most state-of-the-art solutions require intricate modeling or multiparameter measurements to disentangle conformational or thickness changes of biomolecular layers from complex interfacial refractive index variations. Here, we present a dual-band nanoplasmonic ruler comprising mixed arrays of plasmonic nanoparticles with spectrally separated resonance peaks. As electrodynamic simulations and model experiments show, the ruler enables real-time simultaneous measurements of thickness and refractive index variations in uniform and heterogeneous layers with sub-nanometer resolution. Additionally, nanostructure shape changes can be tracked, as demonstrated by quantifying the degree of lipid vesicle deformation at the critical coverage prior to rupture and supported lipid bilayer formation. In a broader context, the presented nanofabrication approach constitutes a generic route for multimodal nanoplasmonic optical sensing.

Nugroho F.A.A. , Świtlik D. , Armanious A. , O’Reilly P. , Darmadi I. , Nilsson S. , Zhdanov V.P. , Höök F. , Antosiewicz T.J. , Langhammer C.
Time-Resolved Thickness and Shape-Change Quantification using a Dual-Band Nanoplasmonic Ruler with Sub-Nanometer Resolution
ACS Nano. 2022. V.16. N10. P.15814–15826. DOI: 10.1021/acsnano.2c04948 WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	May 20, 2022
Accepted:	Sep 6, 2022
Published online:	Sep 9, 2022
Published print:	Oct 25, 2022

Web of science:	WOS:000854344600001
Scopus:	2-s2.0-85138103286
Elibrary:	54728531
Chemical Abstracts:	2022:2358259
PMID:	36083800
OpenAlex:	W4295083693

DB	Citing
Web of science	2
Scopus	2
OpenAlex	2