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Inorganics
Special Issues
Inorganic Chemosensors
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Inorganic Chemosensors

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Materials".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 2110

Special Issue Editors

Dr. Izilda Aparecida Bagatin

E-Mail Website
Guest Editor
Laboratório de Química de Calixarenos, Espectroscopia Molecular e Catálise, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Campus Diadema, Diadema SP 09972-270, Brazil
Interests: bioinorganic chemistry; supramolecular chemistry; luminescence; electrochemistry; photochemistry; fluorescence; ionic sensors; chemosensors
Dr. Fábio Ruiz Simões

E-Mail Website
Guest Editor
Departamento de Ciências do Mar, Universidade Federal de São Paulo (UNIFESP), Santos SP 11070-100, Brazil
Interests: conducting polymers; carbon nanotubes; graphene; electrochemistry; electroanalysis; sensors

Special Issue Information

Dear Colleagues,

Molecules acting as sensors, essentially ion detector agents, have been prepared for selective recognition and extraction of metal ions because of their fundamental role in chemistry and biology sciences. Today, an intense focus on environmental applications is also observed due to the convenience of using appropriate synthetic molecules, enabling the removal of toxic species. Chemosensors are molecules developed to interact and weakly bond with specific ionic species to use this property to sense and extract environmental and economic/industrial nature types. Even though numerous sensors are supplied, some challenges remain in searching for viable alternatives, such as the extraction of hazardous metal ions, such as Hg2+, Pb2+, Cr6+, causing health problems associated with them, and anionic species such as PO43-, F-, Cl-, CN-, which are—among others—the source of the extensive contamination of water reservoirs, pollution, and health problems. Likewise, Ni2+, Cu2+, Cd2+ are metal ions essential from a recovery and reuse perspective. This Special Issue proposes to highlight advancements in the field of novel inorganic chemosensors.

Dr. Izilda Aparecida Bagatin
Dr. Fábio Ruiz Simões
Guest Editors

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. Inorganics is an international peer-reviewed open access monthly 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 2700 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

  • ionic sensors
  • chemosensors
  • hazardous ions
  • fluoride
  • phosphate
  • cyanide
  • Hg2+, Pb2+, Cd2+
  • recovery and reuse metals

Published Papers (1 paper)

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Research

17 pages, 4519 KiB  
Article
Chiral Selectors in Voltammetric Sensors Based on Mixed Phenylalanine/Alanine Cu(II) and Zn(II) Complexes
by Rufina A. Zilberg, Tatyana V. Berestova, Ruslan R. Gizatov, Yulia B. Teres, Miras N. Galimov and Elena O. Bulysheva
Inorganics 2022, 10(8), 117; https://doi.org/10.3390/inorganics10080117 - 12 Aug 2022
Cited by 5 | Viewed by 1357
Abstract
A practical application composite based on mixed chelate complexes [M(S-Ala)2(H2O)n]–[M(S-Phe)2(H2O)n] (M = Cu(II), Zn(II); n = 0–1) as chiral selectors in enantioselective voltammetric sensors was suggested. The [...] Read more.
A practical application composite based on mixed chelate complexes [M(S-Ala)2(H2O)n]–[M(S-Phe)2(H2O)n] (M = Cu(II), Zn(II); n = 0–1) as chiral selectors in enantioselective voltammetric sensors was suggested. The structures of the resulting complexes were studied by XRD, ESI-MS, and IR- and NMR-spectroscopy methods. It was determined that enantioselectivity depends on the metal nature and on the structure of the mixed complex. The mixed complexes, which were suggested to be chiral selectors, were stable under the experimental conditions and provided greater enantioselectivity in the determination of chiral analytes, such as naproxen and propranolol, in comparison with the amino acids they comprise. The best results shown by the mixed copper complex [Cu(S-Ala)2]–[Cu(S-Phe)2] were: ipS/ipR = 1.27 and ΔEp = 30 mV for Nap; and ipS/ipR = 1.37 and ΔEp = 20 mV for Prp. The electrochemical and analytical characteristics of the sensors and conditions of voltammogram recordings were studied by differential pulse voltammetry. Linear relationships between the anodic current and the concentrations of Nap and Prp enantiomers were achieved in the range of 2.5 × 10−5 to 1.0 × 10−3 mol L−1 for GCE/PEC-[Cu(S-Ala)2]–[Cu(S-Phe)2] and 5.0 × 10−5 to 1.0 × 10−3 for GCE/PEC–[Zn(S-Ala)2(H2O)]–[Zn(S-Phe)2(H2O)], with detection limits (3 s/m) of 0.30–1.24 μM. The suggested sensor was used to analyze Nap and Prp enantiomers in urine and plasma samples. Full article
(This article belongs to the Special Issue Inorganic Chemosensors)
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