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Analysis of institutional authors

Albà MAuthorPrieto-Simón BCorresponding Author

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April 11, 2022
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Designing Electrochemical Biosensing Platforms Using Layered Carbon-Stabilized Porous Silicon Nanostructures

Publicated to:Acs Applied Materials & Interfaces. 14 (13): 15565-15575 - 2022-04-06 14(13), DOI: 10.1021/acsami.2c02113

Authors: Guo, Keying; Alba, Maria; Chin, Grace Pei; Tong, Ziqiu; Guan, Bin; Sailor, Michael J; Voelcker, Nicolas H

Affiliations

Commonwealth Sci & Ind Res Org CSIRO, Clayton, Vic 3168, Australia - Author
Department of Chemistry & Biochemistry - Author
Institució Catalana de Recerca i Estudis Avançats , Universitat Rovira i Virgili - Author
King Abdullah Univ Sci & Technol KAUST, Biol & Environm Sci & Engn BESE, Thuwal 239556900, Saudi Arabia - Author
Melbourne Ctr Nanofabricat, Victorian Node Australian Natl Fabricat Facil, Clayton, Vic 3168, Australia - Author
Monash Institute of Pharmaceutical Sciences - Author
Monash Univ, Monash Inst Pharmaceut Sci, Parkville, Vic 3052, Australia - Author
The Australian National Fabrication Facility , Monash Institute of Pharmaceutical Sciences - Author
The Australian National Fabrication Facility , Monash Institute of Pharmaceutical Sciences , Commonwealth Scientific and Industrial Research Organization - Author
Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA - Author
Univ Calif San Diego, Dept Nanoengn, La Jolla, CA 92093 USA - Author
Univ South Australia, Future Ind Inst, Mawson Lakes, SA 5095, Australia - Author
University of South Australia - Author
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Abstract

Porous silicon (pSi) is an established porous material that offers ample opportunities for biosensor design thanks to its tunable structure, versatile surface chemistry, and large surface area. Nonetheless, its potential for electrochemical sensing is relatively unexplored. This study investigates layered carbon-stabilized pSi nanostructures with site-specific functionalities as an electrochemical biosensor. A double-layer nanostructure combining a top hydrophilic layer of thermally carbonized pSi (TCpSi) and a bottom hydrophobic layer of thermally hydrocarbonized pSi (THCpSi) is prepared. The modified layers are formed in a stepwise process, involving first an electrochemical anodization step to generate a porous layer with precisely defined pore morphological features, followed by deposition of a thin thermally carbonized coating on the pore walls via temperature-controlled acetylene decomposition. The second layer is then generated beneath the first by following the same two-step process, but the acetylene decomposition conditions are adjusted to deposit a thermally hydrocarbonized coating. The double-layer platform features excellent electrochemical properties such as fast electron-transfer kinetics, which underpin the performance of a TCpSi-THCpSi voltammetric DNA sensor. The biosensor targets a 28-nucleotide single-stranded DNA sequence with a detection limit of 0.4 pM, two orders of magnitude lower than the values reported to date by any other pSi-based electrochemical DNA sensor.

Keywords

acidscontrollable surface chemistrydisorderdnadual-surface functionalityelectrochemical biosensorelectrodesgraphenelayered nanostructuresraman-spectroscopysurfaceBiosensing techniquesCarbonControllable surface chemistryDual-surface functionalityElectrochemical biosensorLayered nanostructuresNanostructuresPorosityPorous siliconSiliconTransfer rate constants

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Acs Applied Materials & Interfaces 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, 2022, it was in position 55/344, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Multidisciplinary.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.31. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 14, 2024)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 1.42 (source consulted: FECYT Feb 2024)
  • Field Citation Ratio (FCR) from Dimensions: 3.15 (source consulted: Dimensions Jul 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-07-19, the following number of citations:

  • WoS: 18
  • Scopus: 15
  • Europe PMC: 1

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-19:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 39.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 41 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 4.35.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

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:

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Australia; Saudi Arabia; United States of America.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: Last Author (Prieto Simón, Beatriz).

the author responsible for correspondence tasks has been Prieto Simón, Beatriz.