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Analysis of institutional authors

Mirea, TeonaCorresponding AuthorBarrios, Carlos AnguloCorresponding Author

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July 31, 2025
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Article

High-Surface-Sensitive Self-Referenced Plasmonic Sensor Based on Au Nanoislands

Publicated to: Plasmonics. 20 (11): 9951-9961 - 2025-11-01 20(11), DOI: 10.1007/s11468-025-03087-0

Authors:

Melgarejo, K; del Barrio, M; Benito-Peña, E; Mirea, T; Barrios, CA
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Affiliations

Univ Complutense, Fac Chem, Dept Analyt Chem, Madrid 28040, Spain - Author
Univ Politecn Madrid, Dept Elect Engn, CEMDATIC, ETSI Telecomunicac, Ciudad Univ s-n, Madrid 28040, Spain - Author
Univ Politecn Madrid, Dept Photon & Bioengn, CEMDATIC, Ciudad Univ S-N, Madrid 28040, Spain - Author
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Abstract

We present a self-referenced plasmonic sensor with a high surface sensitivity based on Au nanoislands synthesized by thermal dewetting on a planar SiO2/metal bilayer deposited on a Si chip. The optical device displays two spectral features in reflection: a Fabry-P & eacute;rot resonance due to the SiO2/metal bilayer and a localized surface plasmon resonance (LSPR) associated with the Au nanoislands, serving as a reference and sensing signal, respectively. Surface sensitivity was investigated through the study of bovine serum albumin protein adsorption. The device exhibited a surface sensitivity of 0.2 nm/(ng/cm2), an order of magnitude greater than other plasmonic devices based on Au nanoislands. The device response was theoretically modeled using rigorous coupled-wave analysis (RCWA) simulations, which showed strong agreement with the experimental results and provided design guidelines for further sensitivity improvement. The combination of high surface sensitivity, chip-based architecture, cost-effectiveness, and a straightforward Au nanostructure synthesis procedure positions this device as a promising self-referenced plasmonic sensor for biosensing applications.
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Keywords

BiosensorFilmForcesLocalized surface plasmon resonanceMetal nanoparticleMorphologyOptical biosensorProtein adsorptioProtein adsorptionResonanceSimulationSurface sensing

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Plasmonics due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 177/461, thus managing to position itself as a Q2 (Segundo Cuartil), in the category Materials Science, Multidisciplinary. Notably, the journal is positioned en el Cuartil Q3 para la agencia Scopus (SJR) en la categoría Biotechnology.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-26:

  • WoS: 1
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Impact and social visibility

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/89341/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 172
  • Downloads: 49
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Melgarejo, Kimberly) and Last Author (ANGULO BARRIOS, CARLOS).

the authors responsible for correspondence tasks have been MIREA, TEONA and ANGULO BARRIOS, CARLOS.

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Awards linked to the item

Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This research was funded by the R&D National Plan of the Spanish Government (PID-2020-118410RB-C22, PID2021-127457OB-C21), UPM-INDRA Chair in Microelectronics-CHIP, and by the Comunidad de Madrid through the call Research Grants for Young Investigators from Universidad Politecnica de Madrid
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