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Advances of Ionic Liquids in Organic, Polymer and Material Chemistry: Key Trends in Green Chemistry

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Green Chemistry".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 4385

Special Issue Editors

Prof. Dr. Pradip K. Bhowmik

E-Mail Website
Guest Editor
Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway Box 454003, Las Vegas, NV 89154-4003, USA
Interests: liquid crystalline polymers; light-emitting polymers; fire retardant polymers; viologen polymers; poly(pyridinium salts); nanostructured materials; organic synthesis; polymer synthesis; green chemistry; ionic liquids; ionic liquid crystals; luminescent organic salts; anticancer drugs
Special Issues, Collections and Topics in MDPI journals
Dr. Biplab Banerjee

E-Mail Website
Guest Editor
Department of Chemistry, Central University of Punjab, Bathinda 151001, Punjab, India
Interests: sustainable chemisry; bioactivemolecule synthesis; protein chemistry

Special Issue Information

Dear Colleagues,

The past decade has witnessed the rapid development of ionic liquids in many frontier areas of science and technology, such as chemistry, chemical engineering, material science, and medicine. They have also contributed to the development of new models of green chemistry applications. The emerging applications of ionic liquids and ionic liquid crystals as cutting-edge materials in nanomaterial synthesis, biomass processing, fluids in separation, extraction and purification techniques, lubrication, 3D printing, electrolytes, storage media for toxic gases, batteries, supercapacitors has drawn tremendous attention from researchers across many fields.

Ionic liquids are organic salts which comprise of organic cation and suitable inorganic or organic anion which melt below 100 °C. They have high thermal and electrical conductivity and low vapour pressure. Because of negligible vapour pressure, ionic liquids are considered an environmentally benign alternative to volatile and flammable organic solvents. The application of ionic liquids as solvents and catalysts in chemical processes has blossomed within the last decade. As industrial application expand, the need for detailed understanding of this highly interdisciplinary scientific area become more important.

This Special Issue will cover both theoretical and experimental aspects, ranging from molecular structure, dynamics, and interactions to design, synthesis, and applications of ionic liquids. You are invited to contribute to this Special Issue with original contributions that will include, but not limited to, design and development of new ionic liquids, use of ionic liquid as reaction media and catalyst in chemical processes, nano-materials and polymer synthesis, electrochemical devices, separation processes, biowaste processing, 3D printing and interactions of ionic liquids with biomolecules.

Prof. Dr. Pradip K. Bhowmik
Dr. Biplab Banerjee
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. Molecules 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 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 liquids
  • green solvents
  • catalysts
  • polymer synthesis
  • advanced materials
  • electrochemical devices
  • separation process
  • nano-materials
  • biomolecules

Published Papers (3 papers)

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Research

12 pages, 1991 KiB  
Article
Facile One-Pot Synthesis and Anti-Microbial Activity of Novel 1,4-Dihydropyridine Derivatives in Aqueous Micellar Solution under Microwave Irradiation
by Asmita Goswami, Navneet Kaur, Manvinder Kaur, Kishanpal Singh, Harvinder Singh Sohal, Haesook Han and Pradip K. Bhowmik
Molecules 2024, 29(5), 1115; https://doi.org/10.3390/molecules29051115 - 01 Mar 2024
Viewed by 534
Abstract
The current study describes a novel and eco-conscious method to synthesize 1,4-dihydropyridine derivatives utilizing an aqueous micellar solution containing aluminum dodecyl sulfate, Al(DS)3, using readily available starting material. The final products were synthesized with excellent yields within remarkably quick reaction durations, [...] Read more.
The current study describes a novel and eco-conscious method to synthesize 1,4-dihydropyridine derivatives utilizing an aqueous micellar solution containing aluminum dodecyl sulfate, Al(DS)3, using readily available starting material. The final products were synthesized with excellent yields within remarkably quick reaction durations, promoting remarkable atom economy and minimizing environmental impacts. The present protocol has several advantages over other methodologies in terms of high yield (up to 97%) with excellent purity. Further, the synthesized 1,4-DHPs exhibit favorable to excellent resistance against examined bacterial and fungal species. Intriguingly, polar groups on the phenyl ring (5b, 5c, 5i and 5j) make the 1,4-DHPs equally potent against the microbes as compared to the standard drugs. Full article
(This article belongs to the Special Issue Advances of Ionic Liquids in Organic, Polymer and Material Chemistry: Key Trends in Green Chemistry)
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15 pages, 17207 KiB  
Article
Molecular Liquids versus Ionic Liquids: The Interplay between Inter-Molecular and Intra-Molecular Hydrogen Bonding as Seen by Vaporisation Thermodynamics
by Sergey P. Verevkin, Dzmitry H. Zaitsau and Ralf Ludwig
Molecules 2023, 28(2), 539; https://doi.org/10.3390/molecules28020539 - 05 Jan 2023
Cited by 1 | Viewed by 1161
Abstract
In this study, we determined the enthalpies of vaporisation for a suitable set of molecular and ionic liquids using modern techniques for vapour pressure measurements, such as the quartz crystal microbalance, thermogravimetric analysis (TGA), and gas chromatographic methods. This enabled us to measure [...] Read more.
In this study, we determined the enthalpies of vaporisation for a suitable set of molecular and ionic liquids using modern techniques for vapour pressure measurements, such as the quartz crystal microbalance, thermogravimetric analysis (TGA), and gas chromatographic methods. This enabled us to measure reasonable vapour pressures, avoiding the problem of the decomposition of the ionic liquids at high temperatures. The enthalpies of vaporisation could be further analysed by applying the well-known “group contribution” methods for molecular liquids and the “centerpiece” method for ionic liquids. This combined approach allowed for the dissection of the enthalpies of vaporisation into different types of molecular interaction, including hydrogen bonding and the dispersion interaction in the liquid phase, without knowing the existing species in both the liquid and gas phases. Full article
(This article belongs to the Special Issue Advances of Ionic Liquids in Organic, Polymer and Material Chemistry: Key Trends in Green Chemistry)
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18 pages, 2376 KiB  
Article
Preparation, Characterization and Biological Activities of an Oil-in-Water Nanoemulsion from Fish By-Products and Lemon Oil by Ultrasonication Method
by Nor Azrini Nadiha Azmi, Amal A. M. Elgharbawy, Hamzah Mohd Salleh and Muhammad Moniruzzaman
Molecules 2022, 27(19), 6725; https://doi.org/10.3390/molecules27196725 - 09 Oct 2022
Cited by 4 | Viewed by 2000
Abstract
Fish by-product oil and lemon oil have potential applications as active ingredients in many industries, including cosmetics, pharmaceuticals and food. However, the physicochemical properties, especially the poor stability, compromised the usage. Generally, nanoemulsions were used as an approach to stabilize the oils. This [...] Read more.
Fish by-product oil and lemon oil have potential applications as active ingredients in many industries, including cosmetics, pharmaceuticals and food. However, the physicochemical properties, especially the poor stability, compromised the usage. Generally, nanoemulsions were used as an approach to stabilize the oils. This study employed an ultrasonication method to form oil-in-water nanoemulsion of lemon and fish by-product oils (NE-FLO). The formulation is produced at a fixed amount of 2 wt% fish by-product oil, 8 wt% lemon oil, 10 wt% surfactant, 27.7 wt% co-surfactants and 42 min of ultrasonication time. The size, polydispersity index (PDI) and zeta potential obtained were 44.40 nm, 0.077, and −5.02 mV, respectively. The biological properties, including antioxidant, antibacterial, cell cytotoxicity, and anti-inflammatory, showed outstanding performance. The antioxidant activity is comparable without any significant difference with ascorbic acid as standard and is superior to pure lemon oil. NE-FLO successfully inhibits seven Gram-positive and seven Gram-negative bacterial strains. NE-FLO’s anti-inflammatory activity is 99.72%, comparable to nordihydroguaiaretic acid (NDGA) as the standard. At a high concentration of 10,000 µg·mL−1, NE-FLO is non-toxic to normal skin cells. These findings demonstrate that the NE-FLO produced in this study has significant potential for usage in various industries. Full article
(This article belongs to the Special Issue Advances of Ionic Liquids in Organic, Polymer and Material Chemistry: Key Trends in Green Chemistry)
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