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Chemistry Research in Romania
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Chemistry Research in Romania

A special issue of Chemistry (ISSN 2624-8549).

Deadline for manuscript submissions: closed (31 January 2023) | Viewed by 24319

Special Issue Editors

Prof. Dr. Raluca-Ioana Stefan-van Staden

E-Mail Website
Guest Editor
Head of Laboratory of Electrochemistry and PATLAB, National Institute of Research for Electrochemistry and Condensed Matter, Bucharest, 300569 Timișoara, Romania
Interests: electrochemical sensors; chemistry; graphene; biomarkers; gastrointestinal cancer
Special Issues, Collections and Topics in MDPI journals
Dr. Marcela Mihai

E-Mail Website
Guest Editor
"Petru Poni" Institute of Macromolecular Chemistry, 700487 Iasi, Romania
Interests: complex multicomponent systems based on natural and synthetic polyions (synthetic pathway, characterization, applications)

Special Issue Information

Dear Colleagues,

The Special Issue on “Chemistry in Romanian Research” publishes reviews/perspectives on all fields of analytical, organic, macromolecular, inorganic and physical chemistry, chemical engineering, and material sciences. Additionally, the Special Issue will include research articles on hot topics on new methods of synthesis, new methods of analysis, bio-organic chemistry, organo-metallic chemistry (metal organic chemistry), heteroatom chemistry, selective and asymmetric syntheses, optical resolution, heterocyclic chemistry, macromolecular chemistry, macrocycles including crown ethers and calixarenes, natural product chemistry, and catalytic and green chemistry. Theoretical aspects including mechanisms are also within the scope of this Special Issue.

Prof. Dr. Raluca-Ioana Stefan-van Staden
Dr. Marcela Mihai
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. Chemistry 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 1800 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

  • chemical analysis
  • bioanalysis
  • bio-organic chemistry
  • organometallic chemistry
  • heteroatom chemistry
  • selective and asymmetric synthesis
  • macromolecular chemistry
  • natural product chemistry
  • catalytic and green chemistry

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (7 papers)

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Research

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6 pages, 754 KiB  
Communication
Synthesis and Structural Analysis of a Nitrobenzofurazan Derivative of Dibenzo-18-Crown-6 Ether
by Alexandru Bujor, Victorita Tecuceanu, Anamaria Hanganu and Petre Ionita
Chemistry 2022, 4(4), 1696-1701; https://doi.org/10.3390/chemistry4040110 - 9 Dec 2022
Viewed by 1704
Abstract
Nitrobenzofurazan derivatives are well known for their fluorescence, whilst crown ethers are known for their complexing capacity toward cationic species. In this study, we present the synthesis and structural characterization of a new derivative containing both nitrobenzofurazan moieties and a crown ether core. [...] Read more.
Nitrobenzofurazan derivatives are well known for their fluorescence, whilst crown ethers are known for their complexing capacity toward cationic species. In this study, we present the synthesis and structural characterization of a new derivative containing both nitrobenzofurazan moieties and a crown ether core. The new compound was obtained from dibenzo-18-crown-6 ether, which was first nitrated, reduced to the corresponding amine, and subsequently derivatized with NBD. Structural analyses performed by IR, NMR, UV–Vis, and MS confirmed its structure and physico-chemical behavior toward the complexation of alkaline cations. Full article
(This article belongs to the Special Issue Chemistry Research in Romania)
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13 pages, 5593 KiB  
Article
An Approach to the Simultaneous Determination of a Panel of Five Biomarkers for the Early Detection of Brain Cancer Using the Stochastic Method
by Catalina Cioates Negut, Raluca-Ioana Stefan-van Staden and Paula Sfirloaga
Chemistry 2022, 4(4), 1382-1394; https://doi.org/10.3390/chemistry4040090 - 26 Oct 2022
Cited by 4 | Viewed by 1622
Abstract
The simultaneous determination of heregulin-α and HER 1–4 plays an important role in brain cancer diagnosis and treatment. To date, only enzyme-linked immunosorbent assay (ELISA) or a semiquantitative colorimetric method have been used for the assay of these biomarkers; these methods are quite [...] Read more.
The simultaneous determination of heregulin-α and HER 1–4 plays an important role in brain cancer diagnosis and treatment. To date, only enzyme-linked immunosorbent assay (ELISA) or a semiquantitative colorimetric method have been used for the assay of these biomarkers; these methods are quite expensive and can only determine one biomarker in a run. Four 3D stochastic microsensors based on multi-walled carbon nanotubes enriched with gold nanoparticles and modified with inulin were designed for the simultaneous determination of heregulin-α and HER 1–4 in tumor brain tissue and whole blood samples. For the simultaneous measurement of HRG-α and HER 1–4, all sensors demonstrated low limits of determination (as fg mL−1 magnitude order), high sensitivities, and wide concentration ranges. From biological samples, high recovery values of more than 96% of analytes were obtained. The proposed sensor can detect HER 1–4 and heregulin-α in whole blood and tumor tissue samples at the same time. Full article
(This article belongs to the Special Issue Chemistry Research in Romania)
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12 pages, 2130 KiB  
Article
Theoretical Evaluation of the Interactions between Metal-Phthalocyanines and Various Fullerenes as Delivery Systems
by Oana-Raluca Pop and Jacobus (Koos) Frederick Van Staden
Chemistry 2022, 4(3), 1016-1027; https://doi.org/10.3390/chemistry4030069 - 12 Sep 2022
Cited by 3 | Viewed by 2005
Abstract
The photodynamic therapy (PDT) represents a non-invasive method with good results in the treatment of superficial tumors. PDT is based on a combination of two factors, namely, a non-toxic photosensitizing molecule and a light source; the photosensitizer absorbs a photon of radiation, leading [...] Read more.
The photodynamic therapy (PDT) represents a non-invasive method with good results in the treatment of superficial tumors. PDT is based on a combination of two factors, namely, a non-toxic photosensitizing molecule and a light source; the photosensitizer absorbs a photon of radiation, leading to a series of reactions that cause irreversible damage to the affected tissue. The present paper investigates the photosensitization properties of nine substituted metal-phthalocyanines (the central metals being iron, nickel, and zinc). In addition, the interactions between the aforementioned compounds and four fullerenes are investigated by means of molecular docking studies in order to verify their potential as delivery systems for phthalocyanines. Our results outline that the properties of metal-phthalocyanines are mainly influenced by the type of substituent and to a lesser extent by the nature of the metal. The binding energies of the metal-phthalocyanines towards the fullerenes suggest a slight increased affinity for the fullerene C52 as compared to the three nitrogen- and phosphorus-doped C46N3P3 fullerenes. Full article
(This article belongs to the Special Issue Chemistry Research in Romania)
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Review

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21 pages, 11192 KiB  
Review
Progress on Polymers Containing Imide Rings for Advanced Technologies: A Contribution from ICMPP of the Romanian Academy
by Mariana-Dana Damaceanu
Chemistry 2022, 4(4), 1339-1359; https://doi.org/10.3390/chemistry4040088 - 20 Oct 2022
Cited by 4 | Viewed by 2154
Abstract
Evolving technology has posed a constantly increasing need for materials that can work well under harsh conditions such as elevated temperatures. Aromatic polyimides have a great potential for this purpose, having excellent thermal, mechanical, dielectric, and optical properties, along with good chemical resistance [...] Read more.
Evolving technology has posed a constantly increasing need for materials that can work well under harsh conditions such as elevated temperatures. Aromatic polyimides have a great potential for this purpose, having excellent thermal, mechanical, dielectric, and optical properties, along with good chemical resistance and high dimensional stability. In spite of their general difficulty in processing and high cost, polyimides are intensively studied for applications in many areas due to their high-end value. This article reviews the progress made on polyimide materials in the “Petru Poni” Institute of Macromolecular Chemistry (ICMPP) of the Romanian Academy during the last decade, with focus on their performance as films, matrices for nanocomposites, coatings for microelectronics and opto-electronic devices, or dielectrics for thin film capacitors. Full article
(This article belongs to the Special Issue Chemistry Research in Romania)
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27 pages, 2070 KiB  
Review
Polymer/Enzyme Composite Materials—Versatile Catalysts with Multiple Applications
by Larisa-Maria Petrila, Vasile Robert Grădinaru, Florin Bucatariu and Marcela Mihai
Chemistry 2022, 4(4), 1312-1338; https://doi.org/10.3390/chemistry4040087 - 19 Oct 2022
Cited by 4 | Viewed by 3125
Abstract
A significant interest was granted lately to enzymes, which are versatile catalysts characterized by natural origin, with high specificity and selectivity for particular substrates. Additionally, some enzymes are involved in the production of high-valuable products, such as antibiotics, while others are known for [...] Read more.
A significant interest was granted lately to enzymes, which are versatile catalysts characterized by natural origin, with high specificity and selectivity for particular substrates. Additionally, some enzymes are involved in the production of high-valuable products, such as antibiotics, while others are known for their ability to transform emerging contaminates, such as dyes and pesticides, to simpler molecules with a lower environmental impact. Nevertheless, the use of enzymes in industrial applications is limited by their reduced stability in extreme conditions and by their difficult recovery and reusability. Rationally, enzyme immobilization on organic or inorganic matrices proved to be one of the most successful innovative approaches to increase the stability of enzymatic catalysts. By the immobilization of enzymes on support materials, composite biocatalysts are obtained that pose an improved stability, preserving the enzymatic activity and some of the support material’s properties. Of high interest are the polymer/enzyme composites, which are obtained by the chemical or physical attachment of enzymes on polymer matrices. This review highlights some of the latest findings in the field of polymer/enzyme composites, classified according to the morphology of the resulting materials, following their most important applications. Full article
(This article belongs to the Special Issue Chemistry Research in Romania)
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59 pages, 4821 KiB  
Review
Magnetic Nanoparticles: Current Advances in Nanomedicine, Drug Delivery and MRI
by Cezar Comanescu
Chemistry 2022, 4(3), 872-930; https://doi.org/10.3390/chemistry4030063 - 27 Aug 2022
Cited by 48 | Viewed by 9367
Abstract
Magnetic nanoparticles (MNPs) have evolved tremendously during recent years, in part due to the rapid expansion of nanotechnology and to their active magnetic core with a high surface-to-volume ratio, while their surface functionalization opened the door to a plethora of drug, gene and [...] Read more.
Magnetic nanoparticles (MNPs) have evolved tremendously during recent years, in part due to the rapid expansion of nanotechnology and to their active magnetic core with a high surface-to-volume ratio, while their surface functionalization opened the door to a plethora of drug, gene and bioactive molecule immobilization. Taming the high reactivity of the magnetic core was achieved by various functionalization techniques, producing MNPs tailored for the diagnosis and treatment of cardiovascular or neurological disease, tumors and cancer. Superparamagnetic iron oxide nanoparticles (SPIONs) are established at the core of drug-delivery systems and could act as efficient agents for MFH (magnetic fluid hyperthermia). Depending on the functionalization molecule and intrinsic morphological features, MNPs now cover a broad scope which the current review aims to overview. Considering the exponential expansion of the field, the current review will be limited to roughly the past three years. Full article
(This article belongs to the Special Issue Chemistry Research in Romania)
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7 pages, 1371 KiB  
Review
Honey Discrimination Using Fourier Transform-Infrared Spectroscopy
by Andrei A. Bunaciu and Hassan Y. Aboul-Enein
Chemistry 2022, 4(3), 848-854; https://doi.org/10.3390/chemistry4030060 - 25 Aug 2022
Cited by 7 | Viewed by 2934
Abstract
Infrared spectroscopy is a widely used method of analysis to monitor various characteristics in the honey products analysis, to highlight these changes and to detect fraudulent modifications. In this way honey products could not be avoided. This article reviews some of the most [...] Read more.
Infrared spectroscopy is a widely used method of analysis to monitor various characteristics in the honey products analysis, to highlight these changes and to detect fraudulent modifications. In this way honey products could not be avoided. This article reviews some of the most important applications of these spectroscopic procedures in order to discriminate different types of honey and other products published between 2015–2022. Full article
(This article belongs to the Special Issue Chemistry Research in Romania)
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