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Baruah I, Borgohain G. Temperature dependent molecular dynamics simulation study to understand the stabilizing effect of NADES on the protein β-Lactoglobulin. J Mol Graph Model 2023; 125:108582. [PMID: 37595383 DOI: 10.1016/j.jmgm.2023.108582] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 08/20/2023]
Abstract
The thermal stability of a protein is an important concern for its practical application in food processing industries. In this study, we have carried out classical molecular dynamics simulations to systematically investigate the effect of NADES (natural deep eutectic solvent) on the stabilization of the protein β-Lactoglobulin (BLG) at different temperatures. This study sheds light on the very aspects of NADES composed of betaine and sorbitol on the stability of the protein. NADES provides better stability to the protein up to a temperature of 400 K than in water. It is observed that the protein starts to unfold above temperature 400 K in spite of the presence of NADES which is quiet evident from the root mean square deviation (RMSD) and radius of gyration (Rg) plots. The decreasing average solvent accessible surface area (SASA) values and increasing intra-protein hydrogen bonds indicate better stability of the protein in NADES medium than in water at temperatures 300 K and 400 K. At high temperatures viz. 450 K and 500 K the number and distribution of solvent species (betaine and sorbitol) around the protein surface show an increment that are evident from the calculations of solvation shell, radial and spatial distribution functions. Increased number of betaine molecules that interact with the protein through electrostatic interaction may lead to destabilization of the protein at these temperatures. This study suggests that NADES could be used as an ideal medium for thermal stability of the protein BLG up to a temperature of 400 K. Beyond this temperature, NADES used for this study fails to exert stabilization effect on the protein.
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Affiliation(s)
- Indrani Baruah
- Department of Chemistry, Cotton University, Guwahati, Assam, 781001, India
| | - Gargi Borgohain
- Department of Chemistry, Cotton University, Guwahati, Assam, 781001, India.
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2
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Alkhawaja B, Al-Akayleh F, Nasereddin J, Malek SA, Alkhawaja N, Kamran M, Al-Rubaye Z, Smairat M, Al-Remawi M, Aburayyan WS. Levofloxacin-Fatty Acid Systems: Dual Enhancement Through Deep Eutectic Formation and Solubilization for Pharmaceutical Potential and Antibacterial Activity. AAPS PharmSciTech 2023; 24:244. [PMID: 38030950 DOI: 10.1208/s12249-023-02701-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023] Open
Abstract
Fatty acids, including medium-chain saturated and polyunsaturated fatty acids, are known for their broad health benefits, including antimicrobial activity. Through their green properties, deep eutectic systems have been heralded as having the potential to be at the forefront of pharmaceutical applications. In this work, capric acid and geranic acid, two examples of medium-chain saturated and polyunsaturated fatty acids, were employed to enhance the pharmaceutical properties and the antibacterial activity of levofloxacin. To this end, levofloxacin formulations with either capric or geranic acid were prepared and characterized using appropriate techniques. Levofloxacin was utilized to create innovative deep eutectic systems in conjunction with capric acid at three different molar ratios: 1:9, 2:8 and 3:7. This was confirmed through a rigorous analysis involving nuclear magnetic resonance, infrared spectroscopy and differential scanning calorimetry. Furthermore, it is noteworthy that geranic acid demonstrated an impressive threefold improvement in levofloxacin's solubility compared to its solubility in aqueous solutions. The antibacterial activity of the novel combinations of levofloxacin with either fatty acid was evaluated using a checkerboard titration assay. Gratifyingly, both formulations exhibited synergistic effects against a panel of levofloxacin-sensitive and resistant Gram-negative bacteria. In conclusion, the observed superior antibacterial activity of levofloxacin illuminates the potential use of fatty acid-based formulations and deep eutectic systems as green and innovative strategies to combat the global antimicrobial resistance problem.
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Affiliation(s)
- Bayan Alkhawaja
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, 11196, Jordan.
| | - Faisal Al-Akayleh
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, 11196, Jordan.
| | - Jehad Nasereddin
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Zarqa University, Zarqa, 13110, Jordan
| | - Suzanne Abdel Malek
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, 11196, Jordan
| | - Nour Alkhawaja
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, 11196, Jordan
| | - Muhammad Kamran
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Zaid Al-Rubaye
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, 11196, Jordan
| | - Maisa'a Smairat
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, 11196, Jordan
| | - Mayyas Al-Remawi
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, 11196, Jordan
| | - Walid Salem Aburayyan
- Department of Medical Laboratory Analysis, Faculty of Science, Al-Balqa Applied University, Al-Salt, Jordan
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3
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Siddiqui R, Khodja A, Ibrahim T, Khamis M, Anwar A, Khan NA. The increasing importance of novel deep eutectic solvents as potential effective antimicrobials and other medicinal properties. World J Microbiol Biotechnol 2023; 39:330. [PMID: 37792153 DOI: 10.1007/s11274-023-03760-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/11/2023] [Indexed: 10/05/2023]
Abstract
With the rise of antibiotic resistance globally, coupled with evolving and emerging infectious diseases, there is an urgent need for the development of novel antimicrobials. Deep eutectic solvents (DES) are a new generation of eutectic mixtures that depict promising attributes with several biological implications. DES exhibit unique properties such as low toxicity, biodegradability, and high thermal stability. Herein, the antimicrobial properties of DES and their mechanisms of action against a range of microorganisms, including bacteria, amoebae, fungi, viruses, and anti-cancer properties are reviewed. Overall, DES represent a promising class of novel antimicrobial agents as well as possessing other important biological attributes, however, future studies on DES are needed to investigate their underlying antimicrobial mechanism, as well as their in vivo effects, for use in the clinic and public at large.
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Affiliation(s)
- Ruqaiyyah Siddiqui
- Microbiota Research Center, Istinye University, 34010, Istanbul, Turkey
- Department of Biology, Chemistry and Environmental Sciences, College of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Abdelhamid Khodja
- Department of Biology, Chemistry and Environmental Sciences, College of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Taleb Ibrahim
- Department of Chemical and Biological Engineering, College of Engineering, American University of Sharjah, Sharjah, United Arab Emirates
| | - Mustafa Khamis
- Department of Biology, Chemistry and Environmental Sciences, College of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Ayaz Anwar
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Petaling Jaya, Selangor, Malaysia
| | - Naveed Ahmed Khan
- Microbiota Research Center, Istinye University, 34010, Istanbul, Turkey.
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4
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Grillo G, Tabasso S, Capaldi G, Radosevic K, Radojčić-Redovniković I, Gunjević V, Calcio Gaudino E, Cravotto G. Food-Waste Valorisation: Synergistic Effects of Enabling Technologies and Eutectic Solvents on the Recovery of Bioactives from Violet Potato Peels. Foods 2023; 12:2214. [PMID: 37297459 PMCID: PMC10252353 DOI: 10.3390/foods12112214] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/12/2023] Open
Abstract
The recovery of valuable bioactive compounds from the main underutilised by-products of the food industry is one of the greatest challenges to be addressed in circular economy. Potato peels are the largest waste generated during potato processing. However, they could be a potential source of valuable bioactive compounds, such as polyphenols, that can be reused as natural antioxidants. Currently, environmentally benign enabling technologies and new types of non-toxic organic solvents for the extraction of bioactive compounds may dramatically improve the sustainability of these processes. This paper focuses on the potential inherent in the valorisation of violet potato peels (VPPs) by recovering antioxidants using natural deep eutectic solvents (NaDES) under ultrasound (US)- and microwave (MW)-assisted extraction. Both the enabling technologies provided performances that were superior to those of conventional extractions in terms of antioxidant activity determined by the DPPH· (2,2-diphenyl-1-picrylhydrazyl) assay. In particular, the most promising approach using NaDES is proven to be the acoustic cavitation with a Trolox eq. of 1874.0 mmolTE/gExtr (40 °C, 500 W, 30 min), vs. the 510.1 mmolTE/gExtr of hydroalcoholic extraction (80 °C, 4 h). The shelf-life of both hydroalcoholic and NaDES-VPPs extracts have been assessed over a period of 24 months, and found that NaDES granted a 5.6-fold shelf-life extension. Finally, the antiproliferative activity of both hydroalcoholic and NaDES-VPPs extracts was evaluated in vitro using the MTS assay on human tumour Caco-2 cells and normal human keratinocyte cells (HaCaT). In particular, NaDES-VPPs extracts exhibited a significantly more pronounced antiproliferative activity compared to the ethanolic extracts without a noteworthy difference between effects on the two cell lines.
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Affiliation(s)
- Giorgio Grillo
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (G.G.); (S.T.); (G.C.); (V.G.); (G.C.)
| | - Silvia Tabasso
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (G.G.); (S.T.); (G.C.); (V.G.); (G.C.)
| | - Giorgio Capaldi
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (G.G.); (S.T.); (G.C.); (V.G.); (G.C.)
| | - Kristina Radosevic
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10 000 Zagreb, Croatia; (K.R.); (I.R.-R.)
| | - Ivana Radojčić-Redovniković
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10 000 Zagreb, Croatia; (K.R.); (I.R.-R.)
| | - Veronika Gunjević
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (G.G.); (S.T.); (G.C.); (V.G.); (G.C.)
- Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10 000 Zagreb, Croatia
| | - Emanuela Calcio Gaudino
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (G.G.); (S.T.); (G.C.); (V.G.); (G.C.)
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (G.G.); (S.T.); (G.C.); (V.G.); (G.C.)
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5
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Abdelquader MM, Li S, Andrews GP, Jones DS. Therapeutic Deep Eutectic Solvents: A Comprehensive Review of Their Thermodynamics, Microstructure and Drug Delivery Applications. Eur J Pharm Biopharm 2023; 186:85-104. [PMID: 36907368 DOI: 10.1016/j.ejpb.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/13/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023]
Abstract
Deep eutectic solvents (DES) are multicomponent liquids that are usually formed by coupling a hydrogen bond donor and acceptor leading to strong non-covalent (NC) intermolecular networking and profound depression in the melting point of the system. Pharmaceutically, this phenomenon has been exploited to improve drugs' physicochemical properties, with an established DES therapeutic subcategory, therapeutic deep eutectic solvents (THEDES). THEDES preparation is usually via straightforward synthetic processes with little involvement of sophisticated techniques, which, in addition to its thermodynamic stability, make these multi-component molecular adducts a very attractive alternative for drug enabling purposes. Other NC bonded binary systems (e.g., co-crystals and ionic liquids) are utilized in the pharmaceutical field for enhancing drug's behaviours. However, a clear distinction between these systems and THEDES is scarcely discussed in the current literature. Accordingly, this review provides a structure-based categorization for DES formers, a discussion of its thermodynamic properties and phase behaviour, and it clarifies the physicochemical and microstructure boundaries between DES and other NC systems. Additionally, a summary of its preparation techniques and their experimental conditions preparation is supplied. Instrumental analysis techniques can be used to characterize and differentiate DES from other NC mixtures, hence this review draws a road map to for this purpose. Since this work mainly focuses on pharmaceutical applications of DES, all types of THEDES including the highly discussed types (conventional, drugs dissolved in DES and polymer based) in addition to the less discussed categories are covered. Finally, the regulatory status of THEDES was investigated despite the current unclear situation.
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Affiliation(s)
- Magdy M Abdelquader
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; Pharmaceutical Technology Department, Faculty of Pharmacy, Tanta University, Tanat, Egypt.
| | - Shu Li
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - Gavin P Andrews
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
| | - David S Jones
- Pharmaceutical Engineering Group, School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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6
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Albertini B, Bertoni S, Sangiorgi S, Nucci G, Passerini N, Mezzina E. NaDES as a green technological approach for the solubility improvement of BCS class II APIs: An insight into the molecular interactions. Int J Pharm 2023; 634:122696. [PMID: 36758882 DOI: 10.1016/j.ijpharm.2023.122696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/26/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023]
Abstract
Recently, Natural Deep Eutectic Solvents (NaDES) have emerged as potential solvents for boosting drug bioavailability. In this work, the mechanism of solubility enhancement of some APIs belonging to BCS class II (tolbutamide, nimesulide, domperidone and cinnarizine) in these eutectic bio-solvents was investigated in order to get deeper insights into the molecular interactions between the NaDES components and the selected drugs. Different NaDES formulations based on choline chloride, proline, solid organic acids (citric, tartaric and malic acid), sugars (glucose and xylitol) and water were prepared by mild heating (70 °C). Characterization of unloaded NaDES (pH, Karl Fisher titration, viscosity and FTIR analysis) indicated that the type of Hydrogen Bond Acceptor (HBA) and Hydrogen Bond Donor (HBD), their molar ratio as well as water amount strongly affect the extent of H-bonding interactions. Hard gelatin capsules filled with NaDES maintained their integrity until 6 months, proving that all water molecules participate in H-bond network. APIs' solubility enhancement was significant in all NaDES with respect to buffer solutions (pH 1.2 and 6.8). Analysing NaDES having Choline as HBA, it was found that the solubility of smaller molecules increased using larger HBD, while higher molecular weight APIs can be better inserted into the network formed by smaller HBD. NOE experiments demonstrated the formation of a robust supramolecular structure among the protons of choline, those of organic acid and water. In addition, 1D ROESY spectra revealed for the first time the crucial role of choline (methyl groups) in establishing hydrophobic interactions with the relative aliphatic or aromatic portion of the drugs. These data suggest the complex structure of the API-NaDES supramolecular assembly and underline that drug solubility is dependent on a balance network of H-bonds and hydrophobic interactions as well. Understanding the type of interactions between the API and NaDES is essential for their use as effective solubilisation aid.
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Affiliation(s)
- Beatrice Albertini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
| | - Serena Bertoni
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Stefano Sangiorgi
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Giorgia Nucci
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Elisabetta Mezzina
- Department of Chemistry "G. Ciamician", University of Bologna, Via San Giacomo 11, 40126 Bologna, Italy
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7
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Bergua F, Castro M, Lafuente C, Artal M. Thymol+l-menthol eutectic mixtures: Thermophysical properties and possible applications as decontaminants. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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8
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Deep Eutectic Systems as Novel Vehicles for Assisting Drug Transdermal Delivery. Pharmaceutics 2022; 14:pharmaceutics14112265. [PMID: 36365084 PMCID: PMC9692497 DOI: 10.3390/pharmaceutics14112265] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 11/30/2022] Open
Abstract
In recent years, deep eutectic systems (DES) emerged as novel vehicles for facilitating the transdermal delivery of various drugs, including polysaccharides, proteins, insulin, vaccine, nanoparticles, and herb extracts. The objective of this study is to conduct a comprehensive review of the application of DES to transdermal drug delivery, based on previous work and the reported references. Following a brief overview, the roles of DES in TDDS, the modes of action, as well as the structure-activity relationship of DES are discussed. Particularly, the skin permeation of active macromolecules and rigid nanoparticles, which are the defining characteristics of DES, are extensively discussed. The objective is to provide a comprehensive understanding of the current investigation and development of DES-based transdermal delivery systems, as well as a framework for the construction of novel DES-TDDS in the future.
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Li D. Natural deep eutectic solvents in phytonutrient extraction and other applications. FRONTIERS IN PLANT SCIENCE 2022; 13:1004332. [PMID: 36212381 PMCID: PMC9533057 DOI: 10.3389/fpls.2022.1004332] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 08/18/2022] [Indexed: 06/16/2023]
Abstract
Natural deep eutectic solvents (NaDESs) are considered a new type of green solvent with attractive application prospects in many fields because of their simple preparation, low cost, environmental friendliness, low volatility, high solvency capacity, designable structure, and easy biodegradability. Due to their biocompatibility, they are safe to use and are particularly suitable for natural product applications. In recent years, NaDESs have been used to extract phytonutrients (e.g., flavonoids, saponins, polysaccharides, alkaloids, quinones, phenolic acids, volatile oils, etc.) to improve their solubility, stability, and bioavailability. This review is intended to summarize and discuss recent progress in the field of natural products related to materials and preparation methods, physicochemical properties, enhancing extraction and separation, increasing solubility, improving stability and bioavailability, facilitating oral absorption of phytonutrients, and finally, highlighting the challenge for future work.
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Liu Y, Wu Y, Liu J, Wang W, Yang Q, Yang G. Deep eutectic solvents: Recent advances in fabrication approaches and pharmaceutical applications. Int J Pharm 2022; 622:121811. [PMID: 35550409 DOI: 10.1016/j.ijpharm.2022.121811] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/25/2022] [Accepted: 05/05/2022] [Indexed: 12/25/2022]
Abstract
Deep eutectic solvents (DESs) have received increasing attention in the past decade owing to their distinguished properties including biocompatibility, tunability, thermal and chemical stability. Particularly, DESs have joined forces in pharmaceutical industry, not only to efficiently separate actives from natural products, but also to dramatically increase solubility and permeability of drugs, both are critical for the drug absorption and efficacy. As a result, lately DESs have been extensively and practically adopted as versatile drug delivery systems for different routes such as nasal, transdermal and oral administration with enhanced bioavailability. This review summarizes the emerging progress of DESs by introducing applied fabrication approaches with advantages and limitations thereof, and by highlighting the pharmaceutical applications of DESs.
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Affiliation(s)
- Yiwen Liu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yujing Wu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jinming Liu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wenxi Wang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Qingliang Yang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; Research Institute of Pharmaceutical Particle Technology, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Gensheng Yang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China; Research Institute of Pharmaceutical Particle Technology, Zhejiang University of Technology, Hangzhou 310014, China.
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11
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Zhang M, Liu CF, Chen XY, Yang LN, Zhu CM, Teng JH, Wu HX, Zhang FL. Effect of Oxygen and Water on the Stability of Imipenem and Cilastatin Sodium for Injection. PHARMACEUTICAL FRONTS 2022. [DOI: 10.1055/s-0042-1750043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
AbstractThe study aimed to investigate the factors affecting the stability of imipenem and cilastatin sodium for injection (IMI/CIL) to improve the quality and stability in IMI/CIL preparation. In this study, the effects of headspace oxygen (HO), water content, particle shape, and particle size on the stability of IMI/CIL were investigated. IMI/CIL was purged with air, premixed oxygen/nitrogen gas (5%/95%), or high-purity nitrogen (99.999%) at 20, 5, or 2% oxygen levels to prepare IMI/CIL with different HO levels. IMI/CIL was stored at 30, 45, and 75% relative humidity for 30 days to prepare IMI/CIL with different water contents. High-performance liquid chromatography method was used for analysis. The results showed that oxygen, water, particle shape, and particle size had significant effects on the stability of IMI/CIL, and free water content is a better predictor of the safety and stability of imipenem and cilastatin sodium than the total water content. The optimization scheme of the above parameters is proposed, which significantly improves the stability of IMI/CIL. This study led to a better understanding of the degradation mechanism of imipenem and cilastatin sodium, and could provide a reference for the selection and control of IMI/CIL process conditions. This study would contribute to the development of IMI/CIL with improved stability.
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Affiliation(s)
- Meng Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - Chun-Feng Liu
- Pharmaceutical Process Optimization and Industrialization Engineering Research Center, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Xiao-Yan Chen
- China National Medicines Guorui Pharmaceutical Co., Ltd., Huainan, People's Republic of China
| | - Li-Na Yang
- Pharmaceutical Process Optimization and Industrialization Engineering Research Center, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Chun-Mei Zhu
- Pharmaceutical Process Optimization and Industrialization Engineering Research Center, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Jian-Hao Teng
- Pharmaceutical Process Optimization and Industrialization Engineering Research Center, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Hao-Xiang Wu
- Pharmaceutical Process Optimization and Industrialization Engineering Research Center, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
| | - Fu-Li Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
- Pharmaceutical Process Optimization and Industrialization Engineering Research Center, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, Shanghai, People's Republic of China
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12
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Marchel M, Cieśliński H, Boczkaj G. Deep eutectic solvents microbial toxicity: Current state of art and critical evaluation of testing methods. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127963. [PMID: 34896723 DOI: 10.1016/j.jhazmat.2021.127963] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/19/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Deep eutectic solvents (DESs) were described at the beginning of 21st century and they consist of a mixture of two or more solid components, which gives rise to a lower melting point compared to the starting materials. Over the years, DESs have proved to be a promising alternative to traditional organic solvents and ionic liquids (ILs) due to their low volatility, low inflammability, easy preparation, and usually low cost of compounds used in their preparation. All these properties encouraged researchers to use them in diverse fields and applications e.g., as extractants for biomolecules and solvents in pharmaceutical and cosmetic industries. Nevertheless, despite undeniable potential of DESs, there is still controversy about their toxicity. Besides the low number of studies on this topic, there are also some contradicting reports on biocompatibility of these solvents. Such misleading reports could be mainly attributed to the lack of well design standard protocol for DESs toxicity determination or the use of out-off-purpose methodology. Thus, to better apply DESs in green and sustainable chemistry, more studies on their impact on organisms at different trophic levels and the use of proper techniques are required. This review focuses on DESs toxicity towards microorganisms and is divided into three parts: The first part provides a brief general introduction to DESs, the second part discusses the methodologies used for assessment of DESs microbial toxicity and the obtained results, and finally in the third part the critical evaluation of the methods is provided, as well as suggestions and guidelines for future research.
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Affiliation(s)
- Mateusz Marchel
- Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - Hubert Cieśliński
- Gdansk University of Technology, Faculty of Chemistry, Department of Molecular Biotechnology and Microbiology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - Grzegorz Boczkaj
- Gdansk University of Technology, Faculty of Chemistry, Department of Process Engineering and Chemical Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland; EkoTech Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland.
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13
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The effect of Nano-calcium carbonate on β-glucosidase immobilized by alginate and chitosan. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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14
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15
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Safety assessment of citrus and olive by-products using a sustainable methodology based on natural deep eutectic solvents. J Chromatogr A 2022; 1669:462922. [DOI: 10.1016/j.chroma.2022.462922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 02/14/2022] [Accepted: 02/25/2022] [Indexed: 11/18/2022]
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16
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Pedro SN, Gomes ATPC, Oskoei P, Oliveira H, Almeida A, Freire MG, Silvestre AJD, Freire CSR. Boosting antibiotics performance by new formulations with deep eutectic solvents. Int J Pharm 2022; 616:121566. [PMID: 35151818 DOI: 10.1016/j.ijpharm.2022.121566] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/01/2022] [Accepted: 02/07/2022] [Indexed: 11/26/2022]
Abstract
The critical scenario of antimicrobial resistance to antibiotics highlights the need for improved therapeutics and/or formulations. Herein, we demonstrate that deep eutectic solvents (DES) formulations are very promising to remarkably improve the solubility, stability and therapeutic efficacy of antibiotics, such as ciprofloxacin. DES aqueous solutions enhance the solubility of ciprofloxacin up to 430-fold while extending the antibiotic stability. The developed formulations can improve, by 2 to 4-fold, the susceptibility of Gram-negative (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus) bacteria to the antibiotic. They also improve the therapeutic efficacy at concentrations where bacteria present resistance, without promoting tolerance development to ciprofloxacin. Furthermore, the incorporation of DES decreases the toxicity of ciprofloxacin towards immortalized human epidermal keratinocytes (HaCat cells). The results herein reveal the pioneering use of DES in fluoroquinolone-based formulations and their impact on the antibiotic's characteristics and on its therapeutic action.
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Affiliation(s)
- Sónia N Pedro
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana T P C Gomes
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Párástu Oskoei
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Helena Oliveira
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Adelaide Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Armando J D Silvestre
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carmen S R Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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17
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Dash R, Sahoo RN, Si SC, Mallick S. Effect of eutectic formulation on photodegradation kinetics of ornidazole in aqueous state: predicted interaction and molecular binding in docking studies. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02065-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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18
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Nava-Ocampo MF, Al Fuhaid L, Santana A, Bucs SS, Verpoorte R, Hae Choi Y, Witkamp GJ, Vrouwenvelder JS, Farinha AS. Structural properties and stability of the Betaine-Urea natural deep eutectic solvent. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Rodrigues LA, Leonardo IC, Gaspar FB, Roseiro LC, Duarte ARC, Matias AA, Paiva A. Unveiling the potential of betaine/polyol-based deep eutectic systems for the recovery of bioactive protein derivative-rich extracts from sardine processing residues. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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20
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Bulk and interfacial nanostructure and properties in deep eutectic solvents: Current perspectives and future directions. J Colloid Interface Sci 2021; 608:2430-2454. [PMID: 34785053 DOI: 10.1016/j.jcis.2021.10.163] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/25/2022]
Abstract
Deep eutectic solvents (DESs) are a tailorable class of solvents that are rapidly gaining scientific and industrial interest. This is because they are distinct from conventional molecular solvents, inherently tuneable via careful selection of constituents, and possess many attractive properties for applications, including catalysis, chemical extraction, reaction media, novel lubricants, materials chemistry, and electrochemistry. DESs are a class of solvents composed solely of hydrogen bond donors and acceptors with a melting point lower than the individual components and are often fluidic at room temperature. A unique feature of DESs is that they possess distinct bulk liquid and interfacial nanostructure, which results from intra- and inter-molecular interactions, including coulomb forces, hydrogen bonding, van der Waals interactions, electrostatics, dispersion forces, and apolar-polar segregation. This nanostructure manifests as preferential spatial arrangements of the different species, and exists over several length scales, from molecular- to nano- and meso-scales. The physicochemical properties of DESs are dictated by structure-property relationships; however, there is a significant gap in our understanding of the underlying factors which govern their solvent properties. This is a major limitation of DES-based technologies, as nanostructure can significantly influence physical properties and thus potential applications. This perspective provides an overview of the current state of knowledge of DES nanostructure, both in the bulk liquid and at solid interfaces. We provide definitions which clearly distinguish DESs as a unique solvent class, rather than a subset of ILs. An appraisal of recent work provides hints towards trends in structure-property relationships, while also highlighting inconsistencies within the literature suggesting new research directions for the field. It is hoped that this review will provide insight into DES nanostructure, their potential applications, and development of a robust framework for systematic investigation moving forward.
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21
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Deep eutectic systems: An overview of fundamental aspects, current understanding and drug delivery applications. Int J Pharm 2021; 610:121203. [PMID: 34673164 DOI: 10.1016/j.ijpharm.2021.121203] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/24/2021] [Accepted: 10/07/2021] [Indexed: 01/03/2023]
Abstract
The deep eutectic system (DES) is a relatively new concept in the field of drug delivery science. DES is a class of eutectic mixtures comprised of two or more components, with a eutectic point far below than the melting temperature of the pure components. The strong hydrogen bonding interactions between DES constituents are responsible for significant lowering of melting point in DES. A significant number of molecules cannot reach from drug discovery phase to drug development phase because of poor biopharmaceutical attributes, such as solubility and permeability. DES can be a novel alternative to overcome these issues. In last few years DESs have been widely used in different pharmaceutical and chemical processes. However, comprehensive information regarding their drug delivery potential is not available. This review deals with fundamental aspects such as types, preparation, thermodynamics, toxicity, biodegradability and their applications in the field of drug delivery. Current challenges, future prospects and translational aspects of DES as drug delivery system have also been discussed.
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22
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Cysewski P, Przybyłek M, Rozalski R. Experimental and Theoretical Screening for Green Solvents Improving Sulfamethizole Solubility. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5915. [PMID: 34683507 PMCID: PMC8539550 DOI: 10.3390/ma14205915] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 01/22/2023]
Abstract
Solubility enhancement of poorly soluble active pharmaceutical ingredients is of crucial importance for drug development and processing. Extensive experimental screening is limited due to the vast number of potential solvent combinations. Hence, theoretical models can offer valuable hints for guiding experiments aimed at providing solubility data. In this paper, we explore the possibility of applying quantum-chemistry-derived molecular descriptors, adequate for development of an ensemble of neural networks model (ENNM), for solubility computations of sulfamethizole (SMT) in neat and aqueous binary solvent mixtures. The machine learning procedure utilized information encoded in σ-potential profiles computed using the COSMO-RS approach. The resulting nonlinear model is accurate in backcomputing SMT solubility and allowed for extensive screening of green solvents. Since the experimental characteristics of SMT solubility are limited, the data pool was extended by new solubility measurements in water, five neat organic solvents (acetonitrile, N,N-dimethylformamide, dimethyl sulfoxide, 1,4-dioxane, and methanol), and their aqueous binary mixtures at 298.15, 303.15, 308.15, and 313.15 K. Experimentally determined order of decreasing SMT solubility in neat solvents is the following: N,N-dimethylformamide > dimethyl sulfoxide > methanol > acetonitrile > 1,4dioxane >> water, in all studied temperatures. Similar trends are observed for aqueous binary mixtures. Since N,N-dimethylformamide is not considered as a green solvent, the more acceptable replacers were searched for using the developed model. This step led to the conclusion that 4-formylmorpholine is a real alternative to N,N-dimethylformamide, fulfilling all requirements of both high dissolution potential and environmental friendliness.
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Affiliation(s)
- Piotr Cysewski
- Department of Physical Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland;
| | - Maciej Przybyłek
- Department of Physical Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland;
| | - Rafal Rozalski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Karłowicza 24, 85-950 Bydgoszcz, Poland;
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23
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Backes E, Kato CG, Corrêa RCG, Peralta Muniz Moreira RDF, Peralta RA, Barros L, Ferreira IC, Zanin GM, Bracht A, Peralta RM. Laccases in food processing: Current status, bottlenecks and perspectives. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.06.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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24
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Rodrigues LA, Cardeira M, Leonardo IC, Gaspar FB, Radojčić Redovniković I, Duarte ARC, Paiva A, Matias AA. Deep eutectic systems from betaine and polyols – Physicochemical and toxicological properties. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116201] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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25
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Fatima S, Varras PC, Atia-Tul-Wahab, Choudhary MI, Siskos MG, Gerothanassis IP. On the molecular basis of H 2O/DMSO eutectic mixtures by using phenol compounds as molecular sensors: a combined NMR and DFT study. Phys Chem Chem Phys 2021; 23:15645-15658. [PMID: 34268541 DOI: 10.1039/d0cp05861k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NMR and DFT studies of phenol compounds as molecular sensors were carried out to investigate H2O/DMSO eutectic mixtures at a molecular level. The experimental 1H NMR chemical shifts of the OH groups, δexp(OH), of phenol, paracoumaric acid, and vanillic acid show maximum deshielding and, thus, hydrogen bond interactions in the range of mole fractions 0.20 < χ(DMSO) < 0.33. In the mole fractions χ(DMSO) < 0.2, a progressive decrease in δexp(OH) was observed which demonstrates a decrease in hydrogen bond interactions at infinite dilution in H2O, despite the increase in the number of available hydrogen bond acceptor and donor sites. DFT calculated δcalc(OH) of minimum energy solvation clusters were shown to be in reasonable agreement with the pattern in experimental δexp(OH) data. The chemical shift deshielding and, thus, increased hydrogen bond interactions in the natural product + DMSO + nH2O (n = 2, 3) solvation clusters, relative to complexes in DMSO or H2O solutions, cannot be attributed to a single structural parameter of the cooperative interactions between H2O and DMSO molecules with the phenol OH groups of the natural products. The minimum energy conformers of phenol compounds + 2H2O + DMSO complexes are in excellent agreement with a recent low temperature neutron diffraction experiment of 3D2O + DMSO and demonstrate a general structural motif of solvation complexes. The combined use of 1H NMR and DFT studies with emphasis on δ(OH) of phenol compounds, as molecular sensors, can provide an effective method for the study of solute-solvent interactions at the atomic level.
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Affiliation(s)
- Sana Fatima
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 7527, Pakistan
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26
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Zhang M, Zhang X, Liu Y, Wu K, Zhu Y, Lu H, Liang B. Insights into the relationships between physicochemical properties, solvent performance, and applications of deep eutectic solvents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:35537-35563. [PMID: 34031822 DOI: 10.1007/s11356-021-14485-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 05/14/2021] [Indexed: 06/12/2023]
Abstract
Deep eutectic solvent (DES) is regarded as a new generation of green solvent due to its distinctive and tailorable physicochemical properties, such as low volatility, strong solubility, biodegradability, low-cost, environment-friendly, and feasibility of the structural design. As an alternative to traditional organic solvents and ionic liquids (ILs), DESs have been widely applied in many fields, such as organic chemical synthesis, electrochemical deposition, material preparation, biomass catalytic conversion, extraction and separation, detection and analysis, nanotechnology, gas absorption, and drug delivery. In this paper, through in-depth discussion on factors influencing the physicochemical properties of DESs, we summarized the relations between their composition, structure, and performance. Focusing on their solvent performance, we analyzed the latest research results of DESs with different physicochemical properties in various fields. It should be pointed out that designing and synthesizing DESs from the molecular structure aspect to regulate their physicochemical properties is the direction of accurately developing new functional applications of DESs.
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Affiliation(s)
- Man Zhang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China
| | - Xingyilong Zhang
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China
| | - Yingying Liu
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China
| | - Kejing Wu
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China
| | - Yingming Zhu
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China
| | - Houfang Lu
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China.
| | - Bin Liang
- School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu, 610207, China
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27
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Witika BA, Mweetwa LL, Tshiamo KO, Edler K, Matafawali SK, Ntemi PV, Chikukwa MTR, Makoni PA. Vesicular drug delivery for the treatment of topical disorders: current and future perspectives. J Pharm Pharmacol 2021; 73:1427-1441. [PMID: 34132342 DOI: 10.1093/jpp/rgab082] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/12/2021] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Vesicular drug delivery has become a useful approach for therapeutic administration of pharmaceutical compounds. Lipid vesicles have found application in membrane biology, immunology, genetic engineering and theragnostics. This review summarizes topical delivery, specifically dermal/transdermal, ocular and transungual, via these vesicles, including future formulation perspectives. KEY FINDINGS Liposomes and their subsequent derivatives, viz. niosomes, transferosomes, pharmacososmes and ethosomes, form a significant part of vesicular systems that have been successfully utilized in treating an array of topical disorders. These vesicles are thought to be a safe and effective mode of improving the delivery of lipophilic and hydrophilic drugs. SUMMARY Several drug molecules are available for topical disorders. However, physicochemical properties and undesirable toxicity have limited their efficacy. Vesicular delivery systems have the potential to overcome these shortcomings due to properties such as high biocompatibility, simplicity of surface modification and suitability as controlled delivery vehicles. However, incorporating these systems into environmentally responsive dispersants such as hydrogels, ionic liquids and deep eutectic solvents may further enhance therapeutic prowess of these delivery systems. Consequently, improved vesicular drug delivery can be achieved by considering combining some of these formulation approaches.
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Affiliation(s)
- Bwalya A Witika
- Division of Pharmaceutics, Department of Pharmacy, DDT College of Medicine, Gaborone, Botswana
| | - Larry L Mweetwa
- Division of Pharmaceutics, Department of Pharmacy, DDT College of Medicine, Gaborone, Botswana
| | - Kabo O Tshiamo
- Division of Pharmaceutics, Department of Pharmacy, DDT College of Medicine, Gaborone, Botswana
| | - Karen Edler
- Department of Chemistry, University of Bath, Bath, UK
| | - Scott K Matafawali
- Department of Basic Sciences, School of Medicine, Copperbelt University, Ndola, Zambia
| | - Pascal V Ntemi
- Department of Pharmaceutics, School of Pharmacy, Muhimbili University of Health Allied Sciences, Dar es Salaam, Tanzania
| | - Melissa T R Chikukwa
- Division of Pharmaceutics, Faculty of Pharmacy, Rhodes University, Makhanda, South Africa
| | - Pedzisai A Makoni
- Division of Pharmacology, Faculty of Pharmacy, Rhodes University, Makhanda, South Africa
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28
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Zhang Q, Dong Z, Du H. Deep eutectic solvents improve the stability of forsythoside A. J Food Saf 2021. [DOI: 10.1111/jfs.12907] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Qin Zhang
- School of Physical Education Institute of Molecular Science, Shanxi University Taiyuan China
| | - Zhe Dong
- School of Physical Education Institute of Molecular Science, Shanxi University Taiyuan China
| | - Huizhi Du
- School of Physical Education Institute of Molecular Science, Shanxi University Taiyuan China
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29
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Mannu A, Blangetti M, Baldino S, Prandi C. Promising Technological and Industrial Applications of Deep Eutectic Systems. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2494. [PMID: 34065921 PMCID: PMC8151193 DOI: 10.3390/ma14102494] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 12/13/2022]
Abstract
Deep Eutectic Systems (DESs) are obtained by combining Hydrogen Bond Acceptors (HBAs) and Hydrogen Bond Donors (HBDs) in specific molar ratios. Since their first appearance in the literature in 2003, they have shown a wide range of applications, ranging from the selective extraction of biomass or metals to medicine, as well as from pollution control systems to catalytic active solvents and co-solvents. The very peculiar physical properties of DESs, such as the elevated density and viscosity, reduced conductivity, improved solvent ability and a peculiar optical behavior, can be exploited for engineering modular systems which cannot be obtained with other non-eutectic mixtures. In the present review, selected DESs research fields, as their use in materials synthesis, as solvents for volatile organic compounds, as ingredients in pharmaceutical formulations and as active solvents and cosolvents in organic synthesis, are reported and discussed in terms of application and future perspectives.
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Affiliation(s)
- Alberto Mannu
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, I-10125 Turin, Italy; (M.B.); (S.B.)
| | | | | | - Cristina Prandi
- Department of Chemistry, University of Turin, Via Pietro Giuria 7, I-10125 Turin, Italy; (M.B.); (S.B.)
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30
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Das N, Khan T, Subba N, Sen P. Correlating Bromelain's activity with its structure and active-site dynamics and the medium's physical properties in a hydrated deep eutectic solvent. Phys Chem Chem Phys 2021; 23:9337-9346. [PMID: 33885064 DOI: 10.1039/d1cp00046b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Deep eutectic solvents (DESs) are emerging as new media of choice for biocatalysis due to their environmentally friendly nature, fine-tunability, and potential biocompatibility. This work deciphers the behaviour of bromelain in a ternary DES composed of acetamide, urea, and sorbitol at mole fractions of 0.5, 0.3, and 0.2, respectively (0.5Ac/0.3Ur/0.2Sor), with various degrees of hydration. Bromelain is an essential industrial proteolytic enzyme, and the chosen DES is non-ionic and liquid at room temperature. This provides us with a unique opportunity to contemplate protein behaviour in a non-ionic DES for the very first time. Our results infer that at a low DES concentration (up to 30% V/V DES), bromelain adopts a more compact structural conformation, whereas at higher DES concentrations, it becomes somewhat elongated. The microsecond conformational fluctuation time around the active site of bromelain gradually increases with increasing DES concentration, especially beyond 30% V/V. Interestingly, bromelain retains most of its enzymatic activity in the DES, and at some concentrations, the activity is even higher compared with its native state. Furthermore, we correlate the activity of bromelain with its structure, its active-site dynamics, and the physical properties of the medium. Our results demonstrate that the compact structural conformation and flexibility of the active site of bromelain favour its proteolytic activity. Similarly, a medium with increased polarity and decreased viscosity is favourable for its activity. The presented physical insights into how enzymatic activity depends on the protein structure and dynamics and the physical properties of the medium might provide useful guidelines for the rational design of DESs as biocatalytic media.
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Affiliation(s)
- Nilimesh Das
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur - 208 016, UP, India.
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31
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Yang GY, Song JN, Chang YQ, Wang L, Zheng YG, Zhang D, Guo L. Natural Deep Eutectic Solvents for the Extraction of Bioactive Steroidal Saponins from Dioscoreae Nipponicae Rhizoma. Molecules 2021; 26:molecules26072079. [PMID: 33916390 PMCID: PMC8038615 DOI: 10.3390/molecules26072079] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/02/2021] [Accepted: 04/02/2021] [Indexed: 02/06/2023] Open
Abstract
In the present study, a simple and environmentally friendly extraction method based on natural deep eutectic solvents (NADESs) was established to extract four bioactive steroidal saponins from Dioscoreae Nipponicae Rhizoma (DNR). A total of twenty-one types of choline chloride, betaine, and L-proline based NADESs were tailored, and the NADES composed of 1:1 molar ratio of choline chloride and malonic acid showed the best extraction efficiency for the four steroidal saponins compared with other NADESs. Then, the extraction parameters for extraction of steroidal saponins by selected tailor-made NADES were optimized using response surface methodology and the optimal extraction conditions are extraction time, 23.5 min; liquid–solid ratio, 57.5 mL/g; and water content, 54%. The microstructure of the DNR powder before and after ultrasonic extraction by conventional solvents (water and methanol) and the selected NADES were observed using field emission scanning electron microscope. In addition, the four steroidal saponins were recovered from NADESs by D101 macroporous resin with a satisfactory recovery yield between 67.27% and 79.90%. The present research demonstrates that NADESs are a suitable green media for the extraction of the bioactive steroidal saponins from DNR, and have a great potential as possible alternatives to organic solvents for efficiently extracting bioactive compounds from natural products.
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Affiliation(s)
- Gui-Ya Yang
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (G.-Y.Y.); (J.-N.S.); (Y.-Q.C.); (L.W.); (Y.-G.Z.)
| | - Jun-Na Song
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (G.-Y.Y.); (J.-N.S.); (Y.-Q.C.); (L.W.); (Y.-G.Z.)
| | - Ya-Qing Chang
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (G.-Y.Y.); (J.-N.S.); (Y.-Q.C.); (L.W.); (Y.-G.Z.)
| | - Lei Wang
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (G.-Y.Y.); (J.-N.S.); (Y.-Q.C.); (L.W.); (Y.-G.Z.)
| | - Yu-Guang Zheng
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (G.-Y.Y.); (J.-N.S.); (Y.-Q.C.); (L.W.); (Y.-G.Z.)
- Hebei Chemical & Pharmaceutical College, Shijiazhuang 050200, China
| | - Dan Zhang
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (G.-Y.Y.); (J.-N.S.); (Y.-Q.C.); (L.W.); (Y.-G.Z.)
- Correspondence: (D.Z.); (L.G.); Tel.: +86-0311-8992-6017 (D.Z. & L.G.)
| | - Long Guo
- Traditional Chinese Medicine Processing Technology Innovation Center of Hebei Province, Hebei University of Chinese Medicine, Shijiazhuang 050200, China; (G.-Y.Y.); (J.-N.S.); (Y.-Q.C.); (L.W.); (Y.-G.Z.)
- Correspondence: (D.Z.); (L.G.); Tel.: +86-0311-8992-6017 (D.Z. & L.G.)
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32
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Kist JA, Zhao H, Mitchell-Koch KR, Baker GA. The study and application of biomolecules in deep eutectic solvents. J Mater Chem B 2021; 9:536-566. [DOI: 10.1039/d0tb01656j] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Deep eutectic solvents offer stimulating possibilities for biomolecular stabilization and manipulation, biocatalysis, bioextraction, biomass processing, and drug delivery and therapy.
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Affiliation(s)
- Jennifer A. Kist
- Department of Chemistry
- University of Missouri-Columbia
- Columbia
- USA
| | - Hua Zhao
- Department of Chemistry and Biochemistry
- University of Northern Colorado
- Greeley
- USA
| | | | - Gary A. Baker
- Department of Chemistry
- University of Missouri-Columbia
- Columbia
- USA
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Nejrotti S, Mannu A, Blangetti M, Baldino S, Fin A, Prandi C. Optimization of Nazarov Cyclization of 2,4-Dimethyl-1,5-diphenylpenta-1,4-dien-3-one in Deep Eutectic Solvents by a Design of Experiments Approach. Molecules 2020; 25:molecules25235726. [PMID: 33291596 PMCID: PMC7730498 DOI: 10.3390/molecules25235726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 12/19/2022] Open
Abstract
The unprecedented Nazarov cyclization of a model divinyl ketone using phosphonium-based Deep Eutectic Solvents as sustainable non-innocent reaction media is described. A two-level full factorial Design of Experiments was conducted for elucidating the effect of the components of the eutectic mixture and optimizing the reaction conditions in terms of temperature, time, and substrate concentration. In the presence of the Deep Eutectic Solvent (DES) triphenylmethylphosphonium bromide/ethylene glycol, it was possible to convert more than 80% of the 2,4-dimethyl-1,5-diphenylpenta-1,4-dien-3-one, with a specific conversion, into the cyclopentenone Nazarov derivative of 62% (16 h, 60 °C). For the reactions conducted in the DES triphenylmethylphosphonium bromide/acetic acid, quantitative conversions were obtained with percentages of the Nazarov product above 95% even at 25 °C. Surface Responding Analysis of the optimized data furnished a useful tool to determine the best operating conditions leading to quantitative conversion of the starting material, with complete suppression of undesired side-reactions, high yields and selectivity. After optimization, it was possible to convert more than 90% of the model substrate into the desired cyclopentenone with cis percentages up to 77%. Experimental validation of the implemented model confirmed the robustness and the suitability of the procedure, leading to possible further extension to this specific combination of experimental designs to other substrates or even to other synthetic processes of industrial interest.
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Affiliation(s)
- Stefano Nejrotti
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
| | - Alberto Mannu
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
- Correspondence: (A.M.); (M.B.); Tel.: +39-011-6708033 (M.B.)
| | - Marco Blangetti
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
- Correspondence: (A.M.); (M.B.); Tel.: +39-011-6708033 (M.B.)
| | - Salvatore Baldino
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
| | - Andrea Fin
- Department of Drug Science and Technology, University of Turin, Via Pietro Giuria, 9-I-10125 Torino, Italy;
| | - Cristina Prandi
- Department of Chemistry, University of Turin, Via Pietro Giuria, 7-I-10125 Torino, Italy; (S.N.); (S.B.); (C.P.)
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Improving laccase thermostability with aqueous natural deep eutectic solvents. Int J Biol Macromol 2020; 163:919-926. [PMID: 32650014 DOI: 10.1016/j.ijbiomac.2020.07.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/23/2020] [Accepted: 07/03/2020] [Indexed: 12/07/2022]
Abstract
The wide-spread use of laccases in industry is often limited due to the enzyme inactivation over time at conditions which exceeds the operating conditions of the enzymes, which are neutral pH and ambient temperatures (30-40 °C). Natural Deep Eutectic Solvents (NADESs) have attracted considerable attention as reaction media in biocatalysis due to their promising compatibility with enzymes and sustainable derivation. In this contribution we demonstrate the possibility of applying aqueous NADESs as incubation media to alter the activity and inhibit thermal inactivation of laccase T. versicolor. For example we show that by incubating 0.25 g L-1 laccase in an aqueous 25 wt% betaine-xylitol based NADES at 70 °C for 15 min, the measured residual activity of laccase is a near 10 fold greater than the measured residual activity of laccase when incubated without the NADES. Moreover, the comparison of the residual activities of the enzyme in presence betaine, xylitol or NADES is clearly showing the advantage of using a NADES over its individual components. The drastic enhancement of the enzyme thermostability by pre-incubation of laccase in NADES media showcases a facile, cheap and green method of boosting the stability laccase.
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Díaz-Ruiz R, Bergua F, Muñoz-Embid J, Lafuente C, Artal M. The hydration behavior of d-glucose in the choline chloride: Urea:water mixtures. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pal S, Roy R, Paul S. Potential of a Natural Deep Eutectic Solvent, Glyceline, in the Thermal Stability of the Trp-Cage Mini-protein. J Phys Chem B 2020; 124:7598-7610. [DOI: 10.1021/acs.jpcb.0c03501] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Saikat Pal
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam 781039, India
| | - Rituparna Roy
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam 781039, India
| | - Sandip Paul
- Department of Chemistry, Indian Institute of Technology, Guwahati, Assam 781039, India
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Hsieh YH, Li Y, Pan Z, Chen Z, Lu J, Yuan J, Zhu Z, Zhang J. Ultrasonication-assisted synthesis of alcohol-based deep eutectic solvents for extraction of active compounds from ginger. ULTRASONICS SONOCHEMISTRY 2020; 63:104915. [PMID: 31945581 DOI: 10.1016/j.ultsonch.2019.104915] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/18/2019] [Accepted: 11/27/2019] [Indexed: 05/22/2023]
Abstract
An ultrasonication-assisted synthesis of alcohol-based deep eutectic solvents (DESs) is described. Several DESs were synthesized simultaneously under the same conditions. The prepared DESs were used for the extraction of gingerols from ginger powder via ultrasonication-assisted extraction. Notably, some of the prepared DESs exhibited superior extraction performance than those in traditional organic solvents. The viscosity of the DESs, which was suggested to be typically lower than 100 mPa*s had a critical effect on extraction performance. However, the higher gingerol contents in the extracts did not translate to higher active antioxidant abilities. The extraction temperature was found to be a key determinant of the antioxidant capability of the extracted gingerols while the use of higher temperatures (>50 °C) induced degradation and loss of phenolic compounds during extraction. Response surface methodology was applied for determining the optimal extraction conditions to achieve maximum antioxidant capacity with suitable gingerol content. All compounds used for the preparation of the DESs in this study have been widely employed in cosmetic and pharmaceutical fields. Therefore, the extracts in these DES solutions can be considered for direct application development without further product isolation.
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Affiliation(s)
- Yun-Hao Hsieh
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Yuanbin Li
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Zuchen Pan
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China
| | - Zhengjian Chen
- Zhuhai Institute of Advanced Technology Chinese Academy of Sciences, Biomaterials Research Center, Zhuhai, China
| | - Jiahai Lu
- Zhuhai Institute of Advanced Technology Chinese Academy of Sciences, Biomaterials Research Center, Zhuhai, China
| | - Jumao Yuan
- Zhuhai Institute of Advanced Technology Chinese Academy of Sciences, Biomaterials Research Center, Zhuhai, China
| | - Zhenye Zhu
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China.
| | - Jiaheng Zhang
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055 China; Zhuhai Institute of Advanced Technology Chinese Academy of Sciences, Biomaterials Research Center, Zhuhai, China.
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Li Y, Hsieh Y, Pan Z, Zhang L, Yu W, Wang B, Zhang J. Extraction of Alkaloids from Coptidis Rhizoma via Betaine‐Based Deep Eutectic Solvents. ChemistrySelect 2020. [DOI: 10.1002/slct.202000865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yuanbin Li
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Yun‐Hao Hsieh
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Zuchen Pan
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Ling Zhang
- School of ScienceHarbin Institute of Technology Shenzhen 518055 China
| | - Wen Yu
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
| | - Binshen Wang
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
- Department of Chemistry and BiotechnologyYokohama National University 79-5 Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Jiaheng Zhang
- State Key Laboratory of Advanced Welding and JoiningHarbin Institute of Technology Shenzhen 518055 China
- Research Centre of Printed Flexible ElectronicsSchool of Materials Science and Engineering, Harbin Institute of Technology Shenzhen 518055 China
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Tarif E, Mondal J, Biswas R. How frictional response during solute solvation controls solute rotation in naturally abundant deep eutectic solvent (NADES)? A case study with amino acid derivative containing DES. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112451] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mannu A, Di Pietro ME, Mele A. Band-Gap Energies of Choline Chloride and Triphenylmethylphosphoniumbromide-Based Systems. Molecules 2020; 25:molecules25071495. [PMID: 32218347 PMCID: PMC7180541 DOI: 10.3390/molecules25071495] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 03/19/2020] [Accepted: 03/23/2020] [Indexed: 11/16/2022] Open
Abstract
UV-VIS spectroscopy analysis of six mixtures containing choline chloride or triphenylmethylphosphonium bromide as the hydrogen bond acceptor (HBA) and different hydrogen bond donors (HBDs, nickel sulphate, imidazole, d-glucose, ethylene glycol, and glycerol) allowed to determine the indirect and direct band-gap energies through the Tauc plot method. Band-gap energies were compared to those relative to known choline chloride-containing deep band-gap systems. The measurements reported here confirmed the tendency of alcohols or Lewis acids to increment band-gap energy when employed as HBDs. Indirect band-gap energy of 3.74 eV was obtained in the case of the triphenylmethylphosphonium bromide/ethylene glycol system, which represents the smallest transition energy ever reported to date for such kind of systems.
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Affiliation(s)
- Alberto Mannu
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy; (M.E.D.P.)
- Correspondence:
| | - Maria Enrica Di Pietro
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy; (M.E.D.P.)
| | - Andrea Mele
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy; (M.E.D.P.)
- CNR-SCITEC Istituto di Scienze e Tecnologie Chimiche, Via Alfonso Corti 12, 20133 Milano, Italy
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Emami S, Shayanfar A. Deep eutectic solvents for pharmaceutical formulation and drug delivery applications. Pharm Dev Technol 2020; 25:779-796. [DOI: 10.1080/10837450.2020.1735414] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shahram Emami
- Department of Pharmaceutics, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Ali Shayanfar
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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Pedro SN, Freire MG, Freire CSR, Silvestre AJD. Deep eutectic solvents comprising active pharmaceutical ingredients in the development of drug delivery systems. Expert Opin Drug Deliv 2019; 16:497-506. [PMID: 30955386 DOI: 10.1080/17425247.2019.1604680] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Deep eutectic solvents comprising or acting as solvents of active pharmaceutical ingredients (API-DES) emerged as promising alternatives to improve therapeutic efficiency, with the additional possibility to integrate them in (bio)polymer-based systems to enhance their delivery. AREAS COVERED A critical review of the API-DES field evolution is herein presented, namely on the capacity of DES to integrate APIs in their composition and on the use of DES as solvents for APIs. These strategies avoid a current major concern related to drugs and APIs, i.e. polymorphism, and increase the solubility and bioavailability of the target API which leads to increased bioavailability. Owing to their composition versatility, polymerizable API-DES can also be prepared. Finally, the incorporation of API-DES in (bio)polymer-based systems to improve drug delivery is presented and discussed. EXPERT OPINION The relatively easy preparation of API-DES and their capacity to tune the API's release profile when incorporated in (bio)polymer-based systems represent an effective alternative to improve the APIs therapeutic action and to develop controlled drug delivery systems. Given the potential and progress demonstrated so far, the authors foresee further research on novel API-DES and on their delivery routes, envisaging the development of alternative therapies and final approval as therapeutics.
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Affiliation(s)
- Sónia N Pedro
- a CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro , Aveiro , Portugal
| | - Mara G Freire
- a CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro , Aveiro , Portugal
| | - Carmen S R Freire
- a CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro , Aveiro , Portugal
| | - Armando J D Silvestre
- a CICECO - Aveiro Institute of Materials, Department of Chemistry , University of Aveiro , Aveiro , Portugal
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