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Nanoplasmonic Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Sensor Materials".

Deadline for manuscript submissions: closed (31 March 2021) | Viewed by 2162

Special Issue Editor


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Guest Editor
Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
Interests: plasmonics; optical sensing; chirality; nanofabrication; FDTD; plasmon-enhanced fluorescence

Special Issue Information

Dear Colleagues,

The impressive progress of nanoplasmonics observed in the past few decades has enabled a number of new applications, sensorics being among the most successful ones. Within this short period of time, what was a conceptual idea has found a way to practical realization and reached the market. Currently, the continuous efforts to improve sensors’ characteristics, such as sensitivity, selectivity, stability, and the need to detect other properties of the analyte, such as its chirality, have led to the development of new sensing materials and new functionalization and sensing approaches.

The aim of this Special Issue is to gather original research papers and review articles covering recent achievements in this fast-growing field. Special attention will be paid to new nanostructures, fabrication methods, multiplexing techniques, hybrid systems, and chiral (bio)sensors.

Dr. Vladimir E. Bochenkov
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Refractive index sensors
  • Chiral sensors
  • Fluorescence sensors
  • Biological sensors
  • LSPR

Published Papers (1 paper)

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12 pages, 2467 KiB  
Article
A Comparative Study on the Oxidation of Label-Free Silver Triangular Nanoplates by Peroxides: Main Effects and Sensing Applications
by Aleksei Furletov, Vladimir Apyari, Alexey Garshev and Stanislava Dmitrienko
Sensors 2020, 20(17), 4832; https://doi.org/10.3390/s20174832 - 27 Aug 2020
Cited by 4 | Viewed by 1768
Abstract
Nowadays, analytical systems based on silver triangular nanoplates (AgTNPs) have been shown as good prospects for chemical sensing. However, they still remain relatively poorly studied as colorimetric probes for sensing various classes of compounds. This study shows that these nanoparticles are capable of [...] Read more.
Nowadays, analytical systems based on silver triangular nanoplates (AgTNPs) have been shown as good prospects for chemical sensing. However, they still remain relatively poorly studied as colorimetric probes for sensing various classes of compounds. This study shows that these nanoparticles are capable of being oxidized by peroxides, including both hydrogen peroxide and its organic derivatives. The oxidation was found to result in a decrease in the AgTNPs’ local surface plasmon resonance band intensity at 620 nm. This was proposed for peroxide-sensitive spectrophotometric determination. Five peroxides differing in their structure and number of functional groups were tested. Three of them easily oxidized AgTNPs. The effects of a structure of analytes and main exterior factors on the oxidation are discussed. The detection limits of peroxides in the selected conditions increased in the series peracetic acid < hydrogen peroxide < tert-butyl hydroperoxide, coming to 0.08, 1.6 and 24 μmol L−1, respectively. tert-Butyl peroxybenzoate and di-tert-butyl peroxide were found to have no effect on the spectral characteristics of AgTNPs. By the example of hydrogen peroxide, it was found that the determination does not interfere with 100–4000-fold quantities of common inorganic ions. The proposed approach was successfully applied to the analysis of drugs, cosmetics and model mixtures. Full article
(This article belongs to the Special Issue Nanoplasmonic Sensors)
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