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Shrestha B, Maria Rajan S, Aati S, Yusiharni E, Kujan O, Saunders M, Fawzy A. The Synergistic Effect of High Intensity Focused Ultrasound on In-vitro Remineralization of Tooth Enamel by Calcium Phosphate Ion Clusters. Int J Nanomedicine 2024; 19:5365-5380. [PMID: 38859951 PMCID: PMC11164203 DOI: 10.2147/ijn.s464998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/20/2024] [Indexed: 06/12/2024] Open
Abstract
Background Remineralization of dental enamel is an important intervention strategy for the treatment of demineralized lesions. Existing approaches have limitations such as failure to adequately reproduce both the ideal structural and mechanical properties of the native tooth. The ability of ultrasound to control and accelerate the crystallization processes has been widely reported. Therefore, a new approach was explored for in-vitro enamel remineralization involving the synergistic effect of high-intensity focused ultrasound (HIFU) coupled with calcium phosphate ion clusters (CPICs). Methods The demineralized enamel was treated with CPICs, with or without subsequent HIFU exposure for different periods (2.5, 5, and 10 min). The specimens were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and Raman spectroscopy. The surface hardness and crystallographic properties of the treated specimens were evaluated using Vickers microhardness testing and X-ray diffraction (XRD), respectively. Results SEM revealed distinct, organized, and well-defined prismatic structures, showing clear evidence of remineralization in the combined CPIC/HIFU treatment groups. AFM further revealed a decrease in the surface roughness values with increasing HIFU exposure time up to 5 min, reflecting the obliteration of interprismatic spaces created during demineralization. The characteristic Raman band at 960 cm-1 associated with the inorganic phase of enamel dominated well in the HIFU-treated specimens. Importantly, microhardness testing further demonstrated that new mineral growth also recovered the mechanical properties of the enamel in the HIFU-exposed groups. Critical to our aspirations for developing this into a clinical process, these results were achieved in only 5 min. Conclusion HIFU exposure can synergise and significantly accelerate in-vitro enamel remineralization process via calcium phosphate ion clusters. Therefore, this synergistic approach has the potential for use in future clinical interventions.
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Affiliation(s)
- Barsha Shrestha
- UWA Dental School, The University of Western Australia, Perth, WA, Australia
| | - Sheetal Maria Rajan
- UWA Dental School, The University of Western Australia, Perth, WA, Australia
| | - Sultan Aati
- UWA Dental School, The University of Western Australia, Perth, WA, Australia
- Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Emielda Yusiharni
- UWA XRD Facility, Material & Environmental Analysis Platform, The University of Western Australia, Perth, WA, Australia
| | - Omar Kujan
- UWA Dental School, The University of Western Australia, Perth, WA, Australia
| | - Martin Saunders
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, WA, Australia
| | - Amr Fawzy
- UWA Dental School, The University of Western Australia, Perth, WA, Australia
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Duan H, Ran J, Zhao J, Wang X, Zhai B, Chen Y, Yin S, Li S, Zhang L, Li Z. Application of ultrasonic-enhanced active seed crystals in the removal of sodium oxalate from alumina refinery waste liquor. ULTRASONICS SONOCHEMISTRY 2024; 106:106881. [PMID: 38653147 PMCID: PMC11059431 DOI: 10.1016/j.ultsonch.2024.106881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/15/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
When organic matter, especially sodium oxalate (Na2C2O4), accumulates to a certain extent, it will seriously affect the alumina production process in the refinery and therefore urgently needs to be removed. This work attempts to illuminate the benefits of ultrasonic intensification of the crystallization process of Na2C2O4, taking the alumina refinery waste liquor, i.e., flat plate washing liquor, as a case study. The effects of different operating parameters (seed crystal addition amount, caustic soda concentration, reaction time, ultrasonic power) on the crystallization behavior and yield are discussed, and it is found that ultrasonic can increase the Na2C2O4 removal rate to 70.4%. The addition of ultrasonic promotes the morphological evolution of Na2C2O4 and is of great significance to the optimization of the components of the precipitated Na2C2O4. Specifically, the proportion of Na2C2O4 in the crystallized product reaches 64% with conventional conditions, while it reaches 77% with ultrasonic conditions. Therefore, ultrasonic can greatly reduce the alkali loss caused by the crystallization process of Na2C2O4 in flat plate washing liquor, which has great economic benefits.
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Affiliation(s)
- Haisheng Duan
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China; Yunnan Wenshan Aluminum Co., Ltd., Wenshan, Yunnan 663000, China
| | - Jianfeng Ran
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
| | - Jiaping Zhao
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China; Yunnan Wenshan Aluminum Co., Ltd., Wenshan, Yunnan 663000, China
| | - Xuxu Wang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
| | - Benkang Zhai
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
| | - Ying Chen
- Yunnan Wenshan Aluminum Co., Ltd., Wenshan, Yunnan 663000, China
| | - Shaohua Yin
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China.
| | - Shiwei Li
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
| | - Libo Zhang
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China.
| | - Zulai Li
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China
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Sleiman N, Pflieger R, Hallez L, Nikitenko SI, Hihn JY. Magnesium and magnesium alloy dissolution by high intensity focused ultrasound: erosion/cavitation vs. Wave propagation. ULTRASONICS SONOCHEMISTRY 2024; 104:106836. [PMID: 38430906 PMCID: PMC10912864 DOI: 10.1016/j.ultsonch.2024.106836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/07/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
The dissolution of metals, influenced by mechanical and chemical factors, plays a crucial role in various applications. Ultrasonic irradiation has been explored for its ability to enhance dissolution rates and modify surface characteristics. In this study, we investigate the dissolution of magnesium (Mg) and magnesium alloys under high-intensity focused ultrasound (HIFU) conditions with frequency sweeping (wobbling). Our findings reveal distinct effects of cavitation and acoustic streaming on the dissolution process. For pure magnesium, ultrasonic treatment significantly increases dissolution rates compared to silent conditions. Negative frequency sweeps result in the highest dissolution rates, linked to increased cavitation activity, while positive sweeps reduce dissolution rates but maintain acoustic streaming effects. The removal of surface oxides is accelerated in all sonication conditions. Macro- and micro-roughness patterns on the surface correspond to the wobbling frequency range, with wavelengths matching the average ultrasonic frequency. However, dissolution is not uniform across the sample, and preferential attack occurs at the focal point during negative frequency sweeps. In contrast, magnesium alloys exhibit lower dissolution rates than pure Mg. The alloy's mechanical properties make it less susceptible to cavitation erosion but more sensitive to acoustic streaming-induced dissolution. Grain boundaries are preferentially attacked, revealing differences between ductile pure Mg and the harder, more cavitation-resistant, alloy. This study highlights the complex interplay between cavitation and acoustic streaming in the dissolution of magnesium and its alloys under HIFU conditions, shedding light on the limits and potential applications of this technique, particularly in microstructure analysis.
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Affiliation(s)
- Noura Sleiman
- Université de Franche-Comté, CNRS, Institut UTINAM UMR 6213, F-25000 Besançon, France; ICSM UMR 5257 - CEA, Univ Montpellier, CNRS, ENSCM, Bagnols-sur-Cèze, France; IRT M2P, Metz, France
| | - Rachel Pflieger
- ICSM UMR 5257 - CEA, Univ Montpellier, CNRS, ENSCM, Bagnols-sur-Cèze, France
| | - Loïc Hallez
- Université de Franche-Comté, CNRS, Institut UTINAM UMR 6213, F-25000 Besançon, France
| | - Sergey I Nikitenko
- ICSM UMR 5257 - CEA, Univ Montpellier, CNRS, ENSCM, Bagnols-sur-Cèze, France
| | - Jean-Yves Hihn
- Université de Franche-Comté, CNRS, Institut UTINAM UMR 6213, F-25000 Besançon, France; IRT M2P, Metz, France.
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Roshtkhari MBM, Entezari MH. Graphite/carbon-doped TiO 2 nanocomposite synthesized by ultrasound for the degradation of diclofenac. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:15105-15125. [PMID: 38289555 DOI: 10.1007/s11356-024-32182-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 01/21/2024] [Indexed: 02/24/2024]
Abstract
Graphite/C-doped TiO2 nanocomposite was synthesized at room temperature using a simple, impressive, and indirect sonication (20 kHz) by the cup horn system. Tetrabutyltitanate as the precursor of titanium and graphite (G) as the carbon source was used in the preparation of nanocomposite as a photocatalyst. The molar ratio of G/TiO2 as a key parameter was investigated in the synthesis of G/C-doped TiO2. The obtained materials were widely characterized using XRD, SEM, TEM, FTIR, XPS, and UV-Vis diffuse reflectance techniques. The UV-Vis diffuse reflectance spectroscopy results showed that the edge of light absorption of nanocomposite was distinctly red-shifted to the visible area via carbon doping. The XPS outcomes acknowledged the existence of the C, Ti, and O in the photocatalyst. The composite showed an enhancement in the dissociation efficiency of photoinduced charge carriers through the doping process. The photocatalytic activity of the synthesized nanocomposite was checked with diclofenac (DCF) as a pharmaceutical contaminant. The results displayed that G/C-doped TiO2 represented better photocatalytic performance for DCF than TiO2. This was due to the excellent crystallization, intense absorption of visible light, and the impressive separation of photoinduced charge carriers. Various active species such as •OH, •O2¯, h+, and H2O2 play a role in the degradation of DFC. Therefore, different scavengers were used and the role of each one in degradation was investigated. According to the obtained results, •O2¯ radical showed a major role in the photocatalytic process. This work not only proposes a deep insight into the photosensitization-like mechanism by using G-based materials but also develops new photocatalysts for the removal of emerging organic pollutants from waters using sunlight as available cheap energy.
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Affiliation(s)
| | - Mohammad Hassan Entezari
- Sonochemical Research Center, Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
- Environmental Chemistry Research Center, Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
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5
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Manha Veedu R, Niemeyer N, Bäumer N, Kartha Kalathil K, Neugebauer J, Fernández G. Sterically Allowed H-type Supramolecular Polymerizations. Angew Chem Int Ed Engl 2023; 62:e202314211. [PMID: 37797248 DOI: 10.1002/anie.202314211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/05/2023] [Accepted: 10/05/2023] [Indexed: 10/07/2023]
Abstract
The functionalization of π-conjugated scaffolds with sterically demanding substituents is a widely used tactic to suppress cofacial (H-type) stacking interactions, which may even inhibit self-assembly. Contrary to expectations, we demonstrate herein that increasing steric effects can result in an enhanced thermodynamic stability of H-type supramolecular polymers. In our approach, we have investigated two boron dipyrromethene (BODIPY) dyes with bulky phenyl (2) and mesityl (3) meso-substituents and compared their self-assembly in nonpolar media with that of a parent meso-methyl BODIPY 1 lacking bulky groups. While the enhanced steric demand induces pathway complexity, the superior thermodynamic stability of the H-type pathways can be rationalized in terms of additional enthalpic gain arising from intermolecular C-H⋅⋅⋅F-B interactions of the orthogonally arranged aromatic substituents, which overrule their inherent steric demand. Our findings underline the importance of balancing competing non-covalent interactions in self-assembly.
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Affiliation(s)
- Rasitha Manha Veedu
- Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149, Münster, Germany
| | - Niklas Niemeyer
- Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149, Münster, Germany
- Universität Münster, Center for Multiscale Theory and Computation, Corrensstraße 36, 48149, Münster, Germany
| | - Nils Bäumer
- Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149, Münster, Germany
| | - Krishnan Kartha Kalathil
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills, Kottayam, Kerala-686560, India
| | - Johannes Neugebauer
- Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149, Münster, Germany
- Universität Münster, Center for Multiscale Theory and Computation, Corrensstraße 36, 48149, Münster, Germany
| | - Gustavo Fernández
- Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149, Münster, Germany
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Pereira TC, Cruz AG, Guimarães JT, Cravotto G, Flores EMM. Ultrasonication for honey processing and preservation: A brief overview. Food Res Int 2023; 174:113579. [PMID: 37986447 DOI: 10.1016/j.foodres.2023.113579] [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: 07/31/2023] [Revised: 10/05/2023] [Accepted: 10/13/2023] [Indexed: 11/22/2023]
Abstract
Honey is a food product consumed all over the world. Besides its nutritional properties, honey presents antibacterial, antioxidant, and wound-healing properties. To ensure that the final product meets qualitative and microbiological standards, honey treatment is of great importance. Conventional honey treatment is based on the heating of honey samples for decrystallization and bacteria and yeast inactivation. However, conventional heating can cause negative effects on honey quality, such as the formation of toxic compounds, reduction of enzyme activity, and loss of antioxidant and antimicrobial properties. The application of ultrasonic waves has demonstrated interesting effects on honey processing. Ultrasound (US) treatment can lead to the fragmentation of glucose crystals in crystalized honey and has little effect on its properties. In addition to inactivating microorganisms, US-assisted honey processing also preserves phenolic compounds content and antimicrobial properties. However, there is still limited information about honey sonication. The aim of the present review is to comprehensively show the possibilities of US application in honey processing and its effects on honey properties.
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Affiliation(s)
- Thiago C Pereira
- Departament of Chemistry, Federal University of Santa Maria, Santa Maria, Brazil
| | - Adriano G Cruz
- Department of Food Technology, Federal University Fluminense, Niterói, Brazil
| | - Jonas T Guimarães
- Department of Food, Federal Institute of Education, Science and Technology of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Turin, Italy
| | - Erico M M Flores
- Departament of Chemistry, Federal University of Santa Maria, Santa Maria, Brazil.
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7
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Putra Hidayat AR, Zulfa LL, Widyanto AR, Abdullah R, Kusumawati Y, Ediati R. Selective adsorption of anionic and cationic dyes on mesoporous UiO-66 synthesized using a template-free sonochemistry method: kinetic, isotherm and thermodynamic studies. RSC Adv 2023; 13:12320-12343. [PMID: 37091612 PMCID: PMC10116191 DOI: 10.1039/d2ra06947d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 04/10/2023] [Indexed: 04/25/2023] Open
Abstract
In this study, template-free mesoporous UiO-66(U) has been successfully synthesized in shortened time by sonochemical methods and provided energy savings. The synthesized mesoporous UiO-66(U) demonstrated irregular morphology particle around 43.5 nm according to the SEM image. The N2 adsorption-desorption isotherm indicated an irregular, 8.88 nm pore width mesoporous structure. Ultrasonic irradiation waves greatly altered mesoporous materials. A mechanism for mesoporous UiO-66(U) formation has been proposed based on the present findings. Sonochemical-solvent heat saves 97% more energy than solvothermal. Mesoporous UiO-66(U) outperformed solvothermal-synthesized UiO-66(S) in adsorption. These studies exhibited that mesopores in UiO-66 promote dye molecule mass transfer (MO, CR, and MB). According to kinetics and adsorption isotherms, the pseudo-second-order kinetic and Langmuir isotherm models matched experimental results. Thermodynamic studies demonstrated that dye adsorption is spontaneous and exothermically governed by entropy, not enthalpy. Mesoporous UiO-66(U) also showed good anionic dye selectivity in mixed dye adsorption. Mesoporous UiO-66(U) may be regenerated four times while maintaining strong adsorption capability.
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Affiliation(s)
- Alvin Romadhoni Putra Hidayat
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Sukolilo Surabaya 60111 Indonesia
| | - Liyana Labiba Zulfa
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Sukolilo Surabaya 60111 Indonesia
| | - Alvin Rahmad Widyanto
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Sukolilo Surabaya 60111 Indonesia
| | - Romario Abdullah
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Sukolilo Surabaya 60111 Indonesia
| | - Yuly Kusumawati
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Sukolilo Surabaya 60111 Indonesia
| | - Ratna Ediati
- Department of Chemistry, Faculty of Science and Data Analytics, Institut Teknologi Sepuluh Nopember (ITS) Sukolilo Surabaya 60111 Indonesia
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8
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Djellabi R, Aboagye D, Galloni MG, Vilas Andhalkar V, Nouacer S, Nabgan W, Rtimi S, Constantí M, Medina Cabello F, Contreras S. Combined conversion of lignocellulosic biomass into high-value products with ultrasonic cavitation and photocatalytic produced reactive oxygen species - A review. BIORESOURCE TECHNOLOGY 2023; 368:128333. [PMID: 36403911 DOI: 10.1016/j.biortech.2022.128333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
The production of high-value products from lignocellulosic biomass is carried out through the selective scission of crosslinked CC/CO bonds. Nowadays, several techniques are applied to optimize biomass conversion into desired products with high yields. Photocatalytic technology has been proven to be a valuable tool for valorizing biomass at mild conditions. The photoproduced reactive oxygen species (ROSs) can initiate the scission of crosslinked bonds and form radical intermediates. However, the low mass transfer of the photocatalytic process could limit the production of a high yield of products. The incorporation of ultrasonic cavitation in the photocatalytic system provides an exceptional condition to boost the fragmentation and transformation of biomass into the desired products within a lesser reaction time. This review critically discusses the main factors governing the application of photocatalysis for biomass valorization and tricks to boost the selectivity for enhancing the yield of desired products. Synergistic effects obtained through the combination of sonolysis and photocatalysis were discussed in depth. Under ultrasonic vibration, hot spots could be produced on the surface of the photocatalysts, improving the mass transfer through the jet phenomenon. In addition, shock waves can assist the dissolution and mixing of biomass particles.
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Affiliation(s)
- Ridha Djellabi
- Department of Chemical Engineering, Universitat Rovira i Virgili, Tarragona 43007, Spain.
| | - Dominic Aboagye
- Department of Chemical Engineering, Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Melissa Greta Galloni
- Chemistry Department, Università degli Studi di Milano, Via Golgi 19, Milano, 20133, Italy
| | | | - Sana Nouacer
- Laboratory of Water Treatment and Valorization of Industrial Wastes, Chemistry Department, Faculty of Sciences, Badji-Mokhtar University, Annaba BP12 2300, Algeria; École Nationale Supérieure des Mines et Métallurgie, ENSMM, Ex CEFOS Chaiba BP 233 RP Annaba, Sidi Amar W129, Algeria
| | - Walid Nabgan
- Department of Chemical Engineering, Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Sami Rtimi
- Global Institute for Water, Environment and Health, Geneva 1201, Switzerland
| | - Magda Constantí
- Department of Chemical Engineering, Universitat Rovira i Virgili, Tarragona 43007, Spain
| | | | - Sandra Contreras
- Department of Chemical Engineering, Universitat Rovira i Virgili, Tarragona 43007, Spain
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Stec M, Synowiec PM. Solid Features Modification by the Reactor Selection and US Support during Reactive Crystallization. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7419. [PMID: 36363011 PMCID: PMC9654633 DOI: 10.3390/ma15217419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
The use of materials requires adjusting their features to current applications/needs. In crystallization, the production methods leading directly to the product with pre-determined characteristics are being sought. The research focuses on the abilities of "shaping" the solid product (CSD, shape, form, etc.) and is based on experimental work carried out in the ultrasound (US)-assisted Koflo static mixer (STM). As the model reaction calcium fluoride precipitation has been used as a "common denominator" that complements the previous authors' studies, providing comprehensive knowledge and a more general look at the mentioned problem. It has been shown that it is possible to obtain crystals with the desired characteristics; however, one should be aware of the used reactors' limitations. The conscious selection of operating conditions, as well as US parameters (if they are used), is also essential. It has been revealed that the introduction of US to the STM only affects the turbulence intensity, but it doesn't change the mixing profile. The kinetics of crystallization remain unchanged, but crystals are subjected to greater attrition. In the stirred tank reactors, one might significantly improve the homogeneity of the unit mixing distribution by the selection of the relative input power εrel and, thus, affect the kinetics of crystallization.
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Affiliation(s)
- Magdalena Stec
- Department of Chemical Engineering and Process Design, Faculty of Chemistry, Silesian University of Technology, Strzody 7, 44-100 Gliwice, Poland
- Łukasiewicz Research Network, New Chemical Syntheses Institute, InorChem Research and Development Center, Sowińskiego 11, 44-100 Gliwice, Poland
| | - Piotr Maria Synowiec
- Department of Chemical Engineering and Process Design, Faculty of Chemistry, Silesian University of Technology, Strzody 7, 44-100 Gliwice, Poland
- Łukasiewicz Research Network, New Chemical Syntheses Institute, InorChem Research and Development Center, Sowińskiego 11, 44-100 Gliwice, Poland
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10
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Balasubramani N, Venezuela J, Yang N, Wang G, StJohn D, Dargusch M. An overview and critical assessment of the mechanisms of microstructural refinement during ultrasonic solidification of metals. ULTRASONICS SONOCHEMISTRY 2022; 89:106151. [PMID: 36067645 PMCID: PMC9463455 DOI: 10.1016/j.ultsonch.2022.106151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 08/23/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
A refined, equiaxed grain structure and the formation of finer primary intermetallic phases are some of the notable benefits of ultrasonic processing of liquid/solidifying melts. Ultrasonic treatment (UST) has been widely explored in Al and Mg-based alloys due to its operational versatility and scalability. During UST, the refinement of grain and primary intermetallic phases occurs via cavitation-induced fragmentation mechanisms. In addition, UST improves the efficiency (activation of particles) of the conventional grain refinement process when potent particles are added through master alloys. Though the UST's ability to produce refined as-cast structures is well recognized, the understanding of the refinement mechanisms is still debated and unresolved. Significant efforts have been devoted to understanding these mechanisms through the use of sophisticated techniques such as in-situ/ real-time observation, lab-scale and commercial-scale casting processes. All these studies aim to demonstrate the significance of cavitation, fragmentation modes, and alloy chemistry in microstructure refinement. Although the physical effects of cavitation and acoustic streaming (fluid flow) are primary factors influencing the refinement, the dominant grain refinement mechanisms are affected by several solidification variables and casting conditions. Some of these include melt volume, solute, cooling rate, potent particles, grain growth (equiaxed, columnar or dendritic), and the cold zones of the casting where the onset of nucleation occurs. This review aims to provide a better insight into solidification variables emphasizing the importance of cold zones in generating fine structures for small- and large-volume (direct chill) castings. Another important highlight of this review is to present the relatively less explored mechanism of (acoustic) vibration-induced crystallization and discuss the role of cavitation in achieving a refined ingot structure.
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Affiliation(s)
- Nagasivamuni Balasubramani
- Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - Jeffrey Venezuela
- Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - Nan Yang
- Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - Gui Wang
- Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - David StJohn
- Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, University of Queensland, St Lucia, QLD 4072, Australia
| | - Matthew Dargusch
- Centre for Advanced Materials Processing and Manufacturing (AMPAM), School of Mechanical and Mining Engineering, University of Queensland, St Lucia, QLD 4072, Australia.
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11
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Song J, Yan M, Ye J, Zheng S, Ee LY, Wang Z, Li J, Huang M. Research progress in external field intensification of forward osmosis process for water treatment: A critical review. WATER RESEARCH 2022; 222:118943. [PMID: 35952439 DOI: 10.1016/j.watres.2022.118943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Forward osmosis (FO) is an emerging permeation-driven membrane technology that manifests advantages of low energy consumption, low operating pressure, and uncomplicated engineering compared to conventional membrane processes. The key issues that need to be addressed in FO are membrane fouling, concentration polarization (CP) and reverse solute diffusion (RSD). They can lead to problems about loss of draw solutes and reduced membrane lifetime, which not only affect the water treatment effectiveness of FO membranes, but also increase the economic cost. Current research has focused on FO membrane preparation and modification strategies, as well as on the selection of draw solutions. Unfortunately, these intrinsic solutions had limited success in unraveling these phenomena. In this paper, we provide a brief review of the current state of research on existing external field-assisted FO systems (including electric-, pressure-, magnetic-, ultrasonic-, light- and flow-assisted FO system), analyze their mitigation mechanisms for the above key problems, and explore potential research directions to aid in the further development of FO systems. This review aims to reveal the feasibility of the development of external field-assisted FO technology to achieve a more economical and efficient FO treatment process.
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Affiliation(s)
- Jialing Song
- College of Environmental Science and Engineering, Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China; Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Mengying Yan
- College of Environmental Science and Engineering, Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China
| | - Jingling Ye
- College of Environmental Science and Engineering, Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China
| | - Shengyang Zheng
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Liang Ying Ee
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Zhiwei Wang
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Jun Li
- College of Environmental Science and Engineering, Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China
| | - Manhong Huang
- College of Environmental Science and Engineering, Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai 201620, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China.
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12
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Improving separation efficiency of crystallization by ultrasound-accelerated nucleation: The role of solute diffusion and solvation effect. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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13
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Olenik B, Keil B, Jeschke P. Importance of chemical polymorphism in modern crop protection. PEST MANAGEMENT SCIENCE 2022; 78:2746-2758. [PMID: 35419941 PMCID: PMC9321084 DOI: 10.1002/ps.6919] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 03/28/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
The development of agrochemical products faces many scientific challenges. After selection of an agrochemical candidate its properties will have to be optimized to guarantee best bioavailability and stability under many different conditions in various formulation types. These challenges are influenced by the solid-state properties of the active ingredient and this makes the selection of an optimized solid-state form of modern agrochemicals at early development stages very valuable. The increasing awareness of the solid state of agrochemicals is reflected in the importance of polymorphism patent applications, which may enhance the risk of litigations. This review aims to present strategies for the solid-form selection process of agrochemical development candidates. It introduces the different techniques for crystallization and analytics and demonstrates the influence of the solid state on different formulation types. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Britta Olenik
- Bayer AG, Chemical & Pharmaceutical Development, Pharma, Material ScienceWuppertalGermany
| | - Birgit Keil
- Bayer AG, Chemical & Pharmaceutical Development, Pharma, Material ScienceWuppertalGermany
| | - Peter Jeschke
- Institut für Organische Chemie und Makromolekulare ChemieHeinrich‐Heine‐Universität DüsseldorfDuesseldorfGermany
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14
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Birkin PR, Youngs JJ, Truscott TT, Martini S. Probing the mechanisms of enhanced crystallisation of APS in the presence of ultrasound. Phys Chem Chem Phys 2022; 24:11552-11561. [PMID: 35506755 DOI: 10.1039/d1cp05701d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding the origins of the enhancement of crystallisation of a lipid (all-purpose shortening, APS) through the application of ultrasound is a fundamental pre-requisite for the exploitation of this technique in a wider context. To this end, we show here a number of measurements designed to probe the mechanisms responsible for this effect. For example, we show how the type of bubble cluster, produced at the sound source, alters the bubble population and residency time. In addition, to probe the various contributions to the enhanced crystallisation rate, isolation of the cluster environment below the piston like emitter (PLE) used as the ultrasonic source was shown to reduce the enhancement observed, but did not remove it entirely. This implied that the exposure of the liquid to pressure shocks and the environment around the cluster has a positive effect on the crystallisation kinetics. In turn the addition of extra seed crystals and mechanical agitation also enhances the rate of crystallisation. Finally, the time at which ultrasonic irradiation of the fluid is applied is shown to alter the kinetics observed. These observations suggest that two components are important: large bubble populations and mechanical effects on pre-existing crystals. These findings suggest that maximising these effects could be an eloquent way to enhance and control the material characteristics of materials produced in this manner.
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Affiliation(s)
- Peter R Birkin
- Department of Chemistry, University of Southampton, Southampton, UK, SO17 1BJ, UK.
| | - Jack J Youngs
- Department of Chemistry, University of Southampton, Southampton, UK, SO17 1BJ, UK.
| | - Tadd T Truscott
- Department of Mechanical and Aerospace Engineering, Utah State University, Logan, UT, 84322-4130, USA
| | - Silvana Martini
- Department of Nutrition, Dietetics, and Food Sciences, Utah State University, Logan, UT, 84322-8700, USA
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15
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Ultrasound assisted continuous processing in microreactors with focus on crystallization and chemical synthesis: A critical review. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.03.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Sabnis SS, Singh SD, Gogate PR. Improvements in azithromycin recrystallization using ultrasound for size reduction. ULTRASONICS SONOCHEMISTRY 2022; 83:105922. [PMID: 35091234 PMCID: PMC8800140 DOI: 10.1016/j.ultsonch.2022.105922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/14/2022] [Accepted: 01/16/2022] [Indexed: 06/14/2023]
Abstract
The primary motive of the current work is to achieve smaller mean particle size with narrow size distribution that can enhance the bioavailability of azithromycin (ARZ), an essential requirement due to its poor water solubility. Recrystallization of ARZ was evaluated using cooling as well as antisolvent crystallization approaches in the presence of ultrasonic irradiation with detailed study into effect of different parameters such as ultrasonic power, time and temperature. Ultrasound assisted antisolvent crystallization at low temperatures (<10℃) yielded best size reduction up to 80% with narrower distribution and also gave better yield of the product, that too within 5 min of sonication. With scale up considerations, recirculation mode of operation was also evaluated which offered promising results for the size reduction. Images captured using optical microscope and SEM revealed a nearly uniform rod/plate-shaped geometry. Increase in amorphous nature of ARZ was confirmed based on XRD analysis. FTIR analysis showed no significant changes in the functional groups when compared to the original sample. Overall, the work demonstrated an improved reprocessing approach based on the use of ultrasound with insights into effect of operating parameters and effect of ultrasound on various characteristics.
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Affiliation(s)
- Sarvesh S Sabnis
- Chemical Engineering Department, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India
| | - Shikhar D Singh
- Chemical Engineering Department, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India
| | - Parag R Gogate
- Chemical Engineering Department, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400 019, India.
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17
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Calderón-Jiménez B, Montoro Bustos AR, Pereira Reyes R, Paniagua SA, Vega-Baudrit JR. Novel pathway for the sonochemical synthesis of silver nanoparticles with near-spherical shape and high stability in aqueous media. Sci Rep 2022; 12:882. [PMID: 35042912 PMCID: PMC8766478 DOI: 10.1038/s41598-022-04921-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 01/03/2022] [Indexed: 01/13/2023] Open
Abstract
The present study shows the development of a novel sonochemical synthesis pathway of sub-15 nm silver nanoparticles (AgNPs) with quasi-spherical shape and high stability in aqueous suspension. Different analytical techniques such as on-line UV-Vis spectroscopy, Atomic Force Microscopy (AFM), and Transmission Electron Microscopy (TEM) were complementarily used to characterize the evolution of the properties of AgNPs synthesized with this new route. Furthermore, different centrifugation conditions were studied to establish a practical, simple and straightforward purification method. Particle size was determined by TEM employing two different deposition methods, showing that purified AgNPs have a size of 8.1 nm ± 2.4 nm with a narrow dispersion of the size distribution (95% coverage interval from 3.4 to 13 nm). Critical information of the shape and crystalline structure of these sub-15 nm AgNPs, provided by shape descriptors (circularity and roundness) using TEM and high resolution (HR)-TEM measurements, confirmed the generation of AgNPs with quasi-spherical shapes with certain twin-fault particles promoted by the high energy of the ultrasonic treatment. Elemental analysis by TEM-EDS confirmed the high purity of the sub-15 nm AgNPs, consisting solely of Ag. At the optical level, these AgNPs showed a bandgap energy of (2.795 ± 0.002) eV. Finally, the evaluation of the effects of ultraviolet radiation (UVC: 254 nm and UVA: 365 nm) and storage temperature on the spectral stability revealed high stability of the optical properties and subsequently dimensional properties of sub-15 nm AgNPs in the short-term (600 min) and long-term (24 weeks).
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Affiliation(s)
- Bryan Calderón-Jiménez
- Chemical Metrology Division, National Metrology Laboratory of Costa Rica (LCM), San José, 11501-2060, Costa Rica.
- National Laboratory of Nanotechnology, National Center of High Technology, San José, 1174-1200, Costa Rica.
- Ph.D Program in Natural Science for Development (DOCINADE), Technological Institute of Costa Rica, National University, State Distance University, San José, 159-7050, Costa Rica.
| | - Antonio R Montoro Bustos
- Material Measurement Laboratory, Chemical Sciences Division, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Reinaldo Pereira Reyes
- National Laboratory of Nanotechnology, National Center of High Technology, San José, 1174-1200, Costa Rica
| | - Sergio A Paniagua
- National Laboratory of Nanotechnology, National Center of High Technology, San José, 1174-1200, Costa Rica
| | - José R Vega-Baudrit
- National Laboratory of Nanotechnology, National Center of High Technology, San José, 1174-1200, Costa Rica
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18
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Priyadarshi A, Khavari M, Bin Shahrani S, Subroto T, Yusuf LA, Conte M, Prentice P, Pericleous K, Eskin D, Tzanakis I. In-situ observations and acoustic measurements upon fragmentation of free-floating intermetallics under ultrasonic cavitation in water. ULTRASONICS SONOCHEMISTRY 2021; 80:105820. [PMID: 34763212 PMCID: PMC8591476 DOI: 10.1016/j.ultsonch.2021.105820] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/16/2021] [Accepted: 11/01/2021] [Indexed: 05/09/2023]
Abstract
Grain refinement in alloys is a well-known effect of ultrasonic melt processing. Fragmentation of primary crystals by cavitation-induced action in liquid metals is considered as one of the main driving mechanisms for producing finer and equiaxed grain structures. However, in-situ observations of the fragmentation process are generally complex and difficult to follow in opaque liquid metals, especially for the free-floating crystals. In the present study, we develop a transparent test rig to observe in real time the fragmentation potential of free-floating primary Al3Zr particles under ultrasonic excitation in water (an established analogue medium to liquid aluminium for cavitation studies). An effective treatment domain was identified and fragmentation time determined using acoustic pressure field mapping. For the first time, real-time high-speed imaging captured the dynamic interaction of shock waves from the collapsing bubbles with floating intermetallic particles that led to their fragmentation. The breakage sequence as well as the cavitation erosion pattern were studied by means of post-treatment microscopic characterisation of the fragments. Fragment size distribution and crack patterns on the fractured surface were then analysed and quantified. Application of ultrasound is shown to rapidly (<10 s) reduce intermetallic size (from 5 mm down to 10 μm), thereby increasing the number of potential nucleation sites for the grain refinement of aluminium alloys during melt treatment.
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Affiliation(s)
- Abhinav Priyadarshi
- Faculty of Technology, Design and Environment, Oxford Brookes University, Oxford OX33 1HX, UK.
| | - Mohammad Khavari
- Faculty of Technology, Design and Environment, Oxford Brookes University, Oxford OX33 1HX, UK
| | - Shazamin Bin Shahrani
- Faculty of Technology, Design and Environment, Oxford Brookes University, Oxford OX33 1HX, UK
| | - Tungky Subroto
- Brunel Centre for Advance Solidification Technology (BCAST), Brunel University London, Uxbridge UB8 3PH, UK
| | - Lukman A Yusuf
- Cavitation Laboratory, School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Marcello Conte
- Anton Paar TriTec SA, Vernets 6, 2035 Corcelles, Switzerland
| | - Paul Prentice
- Cavitation Laboratory, School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
| | - Koulis Pericleous
- Computational Science and Engineering Group (CSEG), Department of Mathematics, University of Greenwich, London SE10 9LS, UK
| | - Dmitry Eskin
- Brunel Centre for Advance Solidification Technology (BCAST), Brunel University London, Uxbridge UB8 3PH, UK; Tomsk State University, Tomsk 634050, Russia
| | - Iakovos Tzanakis
- Faculty of Technology, Design and Environment, Oxford Brookes University, Oxford OX33 1HX, UK; Department of Materials, University of Oxford, Oxford OX1 3PH, UK
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19
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Meroni D, Djellabi R, Ashokkumar M, Bianchi CL, Boffito DC. Sonoprocessing: From Concepts to Large-Scale Reactors. Chem Rev 2021; 122:3219-3258. [PMID: 34818504 DOI: 10.1021/acs.chemrev.1c00438] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Intensification of ultrasonic processes for diversified applications, including environmental remediation, extractions, food processes, and synthesis of materials, has received attention from the scientific community and industry. The mechanistic pathways involved in intensification of ultrasonic processes that include the ultrasonic generation of cavitation bubbles, radical formation upon their collapse, and the possibility of fine-tuning operating parameters for specific applications are all well documented in the literature. However, the scale-up of ultrasonic processes with large-scale sonochemical reactors for industrial applications remains a challenge. In this context, this review provides a complete overview of the current understanding of the role of operating parameters and reactor configuration on the sonochemical processes. Experimental and theoretical techniques to characterize the intensity and distribution of cavitation activity within sonoreactors are compared. Classes of laboratory and large-scale sonoreactors are reviewed, highlighting recent advances in batch and flow-through reactors. Finally, examples of large-scale sonoprocessing applications have been reviewed, discussing the major scale-up and sustainability challenges.
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Affiliation(s)
- Daniela Meroni
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Ridha Djellabi
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | | | - Claudia L Bianchi
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy
| | - Daria C Boffito
- Département de Génie Chimique, C.P. 6079, Polytechnique Montréal, Montréal H3C 3A7, Canada.,Canada Research Chair in Intensified Mechanochemical Processes for Sustainable Biomass Conversion, Department of Chemical Engineering, Polytechnique Montréal, C.P. 6079, Succ. CV, H3C 3A7 Montréal, Québec Canada
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20
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Yu F, Mao Y, Zhao H, Zhang X, Wang T, Yuan M, Ding S, Wang N, Huang X, Hao H. Enhancement of Continuous Crystallization of Lysozyme through Ultrasound. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Fei Yu
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yafei Mao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hongtu Zhao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiunan Zhang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Ting Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Mingpu Yuan
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Suping Ding
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Na Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xin Huang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Hongxun Hao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- School of Chemical Engineering and Technology, Hainan University, Haikou 570208, China
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21
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Jakubowska E, Milanowski B, Lulek J. A Systematic Approach to the Development of Cilostazol Nanosuspension by Liquid Antisolvent Precipitation (LASP) and Its Combination with Ultrasound. Int J Mol Sci 2021; 22:ijms222212406. [PMID: 34830298 PMCID: PMC8619020 DOI: 10.3390/ijms222212406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/05/2021] [Accepted: 11/12/2021] [Indexed: 12/14/2022] Open
Abstract
Nanosizing is an approach to improve the dissolution rate of poorly soluble drugs. The first aim of this work was to develop nanosuspension of cilostazol with liquid antisolvent precipitation (LASP) and its combination with ultrasound. Second, to systematically study the effect of bottom-up processing factors on precipitated particles’ size and identify the optimal settings for the best reduction. After solvent and stabilizer screening, in-depth process characterization and optimization was performed using Design of Experiments. The work discusses the influence of critical factors found with statistical analysis: feed concentration, stabilizer amount, stirring speed and ultrasound energy governed by time and amplitude. LASP alone only generated particle size of a few microns, but combination with ultrasound was successful in nanosizing (d10 = 0.06, d50 = 0.33, d90 = 1.45 µm). Micro- and nanosuspension’s stability, particle morphology and solid state were studied. Nanosuspension displayed higher apparent solubility than equilibrium and superior dissolution rate over coarse cilostazol and microsuspension. A bottom-up method of precipitation-sonication was demonstrated to be a successful approach to improve the dissolution characteristics of poorly soluble, BCS class II drug cilostazol by reducing its particle size below micron scale, while retaining nanosuspension stability and unchanged crystalline form.
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22
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Copithorne-Crainey CW, Armstrong FJ, Bussemaker M, Lee J. Use of enantiomeric properties of sodium chlorate to assess primary and secondary nucleation under sonication. ULTRASONICS SONOCHEMISTRY 2021; 79:105763. [PMID: 34592599 PMCID: PMC8482043 DOI: 10.1016/j.ultsonch.2021.105763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Ultrasound is known to promote crystal nucleation, but despite significant research there remains uncertainty about how the mechanisms are affected. Despite the proposal of various primary nucleation theories, most studies provide no way to quantify or observe the extent to which primary nucleation is taking place, leaving open the possibility that sonocrystallisation is occurring by a secondary nucleation-driven mechanism. By utilising the widely reported enantiomeric properties of sodium chlorate, the extent to which ultrasound can induce primary nucleation can clearly be observed. It was demonstrated during seeded cooling crystallisation that when stirring the seed similarity was 99.3% on average, indicating secondary nucleation had almost exclusively taken place. The application of ultrasound however, decreased the seed similarity to 85.8% and 92.4% when applying 98 kHz and 200 kHz ultrasound respectively, clearly showing that primary nucleation had been induced and indicating the frequency dependency of the induced primary nucleation. This frequency dependency suggests a link between crystal nucleation and high intensity cavitation collisions and collapses, and the potential existence of a collapse/collision intensity threshold required to induce primary nucleation. In addition, secondary nucleation rate was investigated using anti-solvent crystallisation and was observed to increase with the application of ultrasound, though it appeared frequency independent (between 98 kHz & 200 kHz), suggesting that higher energy cavitational events are less important in inducing secondary nucleation or that a lower cavitation intensity threshold exists compared to primary nucleation.
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Affiliation(s)
- Conor W Copithorne-Crainey
- Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom
| | - Fraser J Armstrong
- Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom
| | - Madeleine Bussemaker
- Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom
| | - Judy Lee
- Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
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23
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Sabnis SS, Banakar VV, Gogate PR, Raha A, Saurabh, Adak AK. Intensification of Sonocrystallization of CaSO 4 in Continuous Operation Using a Tube Sonicator. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sarvesh S. Sabnis
- Chemical Engineering Department, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai 400 019, India
| | - Vikram V. Banakar
- Chemical Engineering Department, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai 400 019, India
| | - Parag R. Gogate
- Chemical Engineering Department, Institute of Chemical Technology, N.P. Marg, Matunga, Mumbai 400 019, India
| | - Abhijit Raha
- Desalination & Membrane Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Saurabh
- Desalination & Membrane Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Asis K. Adak
- Desalination & Membrane Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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24
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Kim HN, Suslick KS. Sonofragmentation of Organic Molecular Crystals vs Strength of Materials. J Org Chem 2021; 86:13997-14003. [PMID: 33720713 DOI: 10.1021/acs.joc.1c00121] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Mechanochemistry, the interface between the chemical and the mechanical worlds, includes the relationship between the chemical and mechanical properties of solids. In this work, fragmentation of organic molecular crystals during ultrasonic irradiation of slurries has been quantitatively investigated. This has particular relevance to nucleation processes during sonocrystallization, which is increasingly used in the processing and formulation of numerous pharmaceutical agents (PAs). We have discovered that the rates of sonofragmentation are very strongly correlated with the strength of the materials (as measured by Vickers hardness and Young's modulus). This is a mechanochemical extension of the Bell-Evans-Polanyi Principle or Hammond's Postulate: the kinetics (i.e., rates) of solid fracture correlate with thermodynamic properties of solids (e.g., Young's modulus). The mechanism of the particle breakage is consistent with a direct interaction between the shockwaves or localized microjets created by the ultrasound (through acoustic cavitation) and the solid particles in the slurry. Comparisons of the sonofragmentation patterns of ionic and molecular crystals showed that ionic crystals are more sensitive to sonofragmentation than molecular crystals for a given Young's modulus. The rates of sonofragmentation are proposed to correlate with the types and densities of imperfections in the crystals.
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Affiliation(s)
- Hyo Na Kim
- Department of Chemistry, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, Republic of Korea
| | - Kenneth S Suslick
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 60801, United States
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25
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Yang Y, Ahmed B, Mitchell C, Quon JL, Siddique H, Houson I, Florence AJ, Papageorgiou CD. Investigation of Wet Milling and Indirect Ultrasound as Means for Controlling Nucleation in the Continuous Crystallization of an Active Pharmaceutical Ingredient. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yihui Yang
- Process Chemistry and Development, Takeda Pharmaceuticals International Company, Boston, 40 Landsdowne, Cambridge, Massachusetts 02139, United States
| | - Bilal Ahmed
- EPSRC Future CMAC Manufacturing Research Hub, Institute of Pharmacy & Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, Glasgow G1 1RD, U.K
- EPSRC Future CMAC Manufacturing Research Hub, Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, U.K
| | - Christopher Mitchell
- Process Chemistry and Development, Takeda Pharmaceuticals International Company, Boston, 40 Landsdowne, Cambridge, Massachusetts 02139, United States
| | - Justin L. Quon
- Process Chemistry and Development, Takeda Pharmaceuticals International Company, Boston, 40 Landsdowne, Cambridge, Massachusetts 02139, United States
| | - Humera Siddique
- EPSRC Future CMAC Manufacturing Research Hub, Institute of Pharmacy & Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, Glasgow G1 1RD, U.K
| | - Ian Houson
- EPSRC Future CMAC Manufacturing Research Hub, Institute of Pharmacy & Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, Glasgow G1 1RD, U.K
| | - Alastair J. Florence
- EPSRC Future CMAC Manufacturing Research Hub, Institute of Pharmacy & Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, Glasgow G1 1RD, U.K
| | - Charles D. Papageorgiou
- Process Chemistry and Development, Takeda Pharmaceuticals International Company, Boston, 40 Landsdowne, Cambridge, Massachusetts 02139, United States
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Kean Chong L, Osman AF, Ahmad Fauzi AA, Alrashdi AA, Abdul Halim KA. The Mechanical and Thermal Properties of Poly(ethylene- co-vinyl acetate) (PECoVA) Composites with Pristine Dolomite and Organophilic Microcrystalline Dolomite (OMCD). Polymers (Basel) 2021; 13:polym13183034. [PMID: 34577935 PMCID: PMC8473242 DOI: 10.3390/polym13183034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 11/16/2022] Open
Abstract
Poly(ethylene-co-vinyl acetate) (PECoVA) composite containing organophilic microcrystalline dolomite (OMCD) was studied to replace the non-recyclable silicone elastomer in biomedical application. Pristine dolomite (DOL) is an inorganic mineral filler and is hydrophilic in nature, hence incompatible with most polymers and limits its use in biomedical applications. DOL was subjected to a combination of size reduction, tip sonication and a surface modification process to obtain a more effective dolomite filler, known as OMCD, as reinforcement material in the PECoVA copolymer matrix. The effects of DOL and OMCD loadings (1, 3, 5 wt%) on the structure and properties of the PECoVA composite were investigated. According to the X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), tensile and tear tests, dynamic mechanical analysis (DMA) and differential scanning calorimetry (DSC) analysis, the use of the OMCD filler brought a more pronounced positive impact to the PECoVA matrix as opposed to the DOL, where it enhanced the crystallinity of the matrix and led to much better matrix–filler interfacial interactions. Therefore, regardless of the filler loading, the PECoVA/OMCD composites demonstrate greater mechanical and thermal properties compared to the PECoVA/DOL composites. The best composite was produced with the OMCD loading of 3 wt%, in which the tensile strength (22.1 MPa), elongation at break (1413%) and Young’s modulus (2.0 MPa) of the copolymer matrix were increased by 44%, 23% and 21%, respectively. This proved that the combination of size reduction, tip sonication and the surface modification technique is efficient to obtain the PECoVA/dolomite composite with improved performance.
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Affiliation(s)
- Lim Kean Chong
- Faculty of Chemical Engineering Technology, University Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (L.K.C.); (A.A.A.F.); (K.A.A.H.)
- Biomedical and Nanotechnology Research Group, Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia
| | - Azlin Fazlina Osman
- Faculty of Chemical Engineering Technology, University Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (L.K.C.); (A.A.A.F.); (K.A.A.H.)
- Biomedical and Nanotechnology Research Group, Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia
- Correspondence:
| | - Asfa Amalia Ahmad Fauzi
- Faculty of Chemical Engineering Technology, University Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (L.K.C.); (A.A.A.F.); (K.A.A.H.)
- Biomedical and Nanotechnology Research Group, Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia
| | - Awad A. Alrashdi
- Chemistry Department, Umm Al-Qura University, Al-Qunfudah University College, Al-Qunfudah Center for Scientific Research (QCSR), Al Qunfudah 21962, Saudi Arabia;
| | - Khairul Anwar Abdul Halim
- Faculty of Chemical Engineering Technology, University Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia; (L.K.C.); (A.A.A.F.); (K.A.A.H.)
- Biomedical and Nanotechnology Research Group, Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis (UniMAP), Arau 02600, Perlis, Malaysia
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27
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Continuous Cooling Crystallization in a Coiled Flow Inverter Crystallizer Technology—Design, Characterization, and Hurdles. Processes (Basel) 2021. [DOI: 10.3390/pr9091537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Continuous small-scale production is currently of utmost interest for fine chemicals and pharmaceuticals. For this purpose, equipment and process concepts in consideration of the hurdles for solids handling are required to transfer conventional batch processing to continuous operation. Based on empirical equations, pressure loss constraints, and an expandable modular system, a coiled flow inverter (CFI) crystallizer with an inner diameter of 1.6 mm was designed. It was characterized concerning its residence time behavior, tested for operation with seed crystals or an ultrasonic seed crystal unit, and evaluated for different purging mechanisms for stable operation. The residence time behavior in the CFI corresponds to ideal plug flow behavior. Crystal growth using seed crystals was demonstrated in the CFI for two amino acids. For fewer seed crystals, higher crystal growth rates were determined, while at the same time, secondary nucleation was observed. Feasibility for the interconnection of a sonicated seeding crystal unit could be shown. However, the hurdles are also identified and discussed. Prophylactic flushing combined with a photosensor for distinguishing between solvent and suspension phase can lead to stable and resource-efficient operation. The small-scale CFI technology was investigated in detail, and the limits and opportunities of the technology are presented here.
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28
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Zhao J, Wu X, Ning L, Zhang J, Han C, Li Y. Wetting of aluminium and carbon interface during preparation of Al-Ti-C grain refiner under ultrasonic field. ULTRASONICS SONOCHEMISTRY 2021; 76:105633. [PMID: 34198126 PMCID: PMC8254042 DOI: 10.1016/j.ultsonch.2021.105633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/25/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
In the preparation of an Al-Ti-C grain refiner under an ultrasonic field, the mechanism of the wetting behaviour between Al and C was systematically investigated. The results demonstrated that the wetting behaviour was mainly dependent on the wetting of the Al melt on graphite under the ultrasonic field (physical wetting) and the formation and mass transfer of TiC (reactive wetting). The diffusion of Ti atoms and their adsorption around the graphite could contribute to the wetting of Al-C. TiC particles were formed under the high temperature caused by the cavitation effect, and they detached from the interface due to the sound pressure, which resulted in consistently sufficient contact on the wetting interface. Moreover, the wetting and spreading behaviour of the Al melt on graphite under an ultrasonic field were numerically simulated, strongly manifesting that the ultrasonic field could facilitate the wetting of the Al-C interface.
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Affiliation(s)
- Jingtao Zhao
- School of Materials Science and Engineering, Northeastern University, 11 Wenhua Road, Shenyang 110819, PR China; Key Laboratory of Lightweight Structural Materials, Liaoning Province, PR China
| | - Xiaoyu Wu
- School of Materials Science and Engineering, Northeastern University, 11 Wenhua Road, Shenyang 110819, PR China; Key Laboratory of Lightweight Structural Materials, Liaoning Province, PR China
| | - Liping Ning
- School of Materials Science and Engineering, Northeastern University, 11 Wenhua Road, Shenyang 110819, PR China; Key Laboratory of Lightweight Structural Materials, Liaoning Province, PR China
| | - Junjia Zhang
- School of Materials Science and Engineering, Northeastern University, 11 Wenhua Road, Shenyang 110819, PR China; Key Laboratory of Lightweight Structural Materials, Liaoning Province, PR China
| | - Chao Han
- School of Metallurgy, Northeastern University, Shenyang 110819, PR China
| | - Yinglong Li
- School of Materials Science and Engineering, Northeastern University, 11 Wenhua Road, Shenyang 110819, PR China; Key Laboratory of Lightweight Structural Materials, Liaoning Province, PR China.
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29
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Ito S, Sekine R, Munakata M, Asami M, Tachikawa T, Kaji D, Mishima K, Imai Y. Mechanochromic Luminescence and Solid‐State Circularly Polarized Luminescence of a Chiral Diamine‐Linked Bispyrene. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100087] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Suguru Ito
- Department of Chemistry and Life Science Graduate School of Engineering Science Yokohama National University 79-5, Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Ryohei Sekine
- Department of Chemistry and Life Science Graduate School of Engineering Science Yokohama National University 79-5, Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Masayasu Munakata
- Department of Chemistry and Life Science Graduate School of Engineering Science Yokohama National University 79-5, Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Masatoshi Asami
- Department of Chemistry and Life Science Graduate School of Engineering Science Yokohama National University 79-5, Tokiwadai, Hodogaya-ku Yokohama 240-8501 Japan
| | - Takashi Tachikawa
- Department of Chemistry Graduate School of Science Kobe University 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
- Molecular Photoscience Research Center Kobe University 1-1 Rokkodai-cho, Nada-ku Kobe 657-8501 Japan
| | - Daiki Kaji
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Kohei Mishima
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Yoshitane Imai
- Department of Applied Chemistry Faculty of Science and Engineering Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
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30
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Sánchez-García YI, Gutiérrez-Méndez N, Salmerón I, Ramos-Sánchez VH, Leal-Ramos MY, Sepúlveda DR. Mutarotation and solubility of lactose as affected by carrageenans. Food Res Int 2021; 142:110204. [PMID: 33773679 DOI: 10.1016/j.foodres.2021.110204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 01/25/2021] [Accepted: 01/30/2021] [Indexed: 10/22/2022]
Abstract
It has been reported that polysaccharides like carrageenan can change the crystallization of lactose. However, it is still unclear whether changes in lactose mutarotation, solubility, and super-solubility are involved in carrageenans' effect on lactose crystallization. It has been established that the conversion of α- to β-lactose forms (mutarotation) in an aqueous solution has a significant impact on lactose crystallization. Similarly, lactose solubility changes lead to changes in the metastable zone (MZ), a region between the solubility and super-solubility of lactose. The width of this MZ determines the temperature drop necessary to induce lactose nucleation. This work aimed to study the effect of carrageenans on lactose mutarotation and solubility. For this purpose, lactose solutions were added with ι and κ- carrageenan at two concentrations: 50 and 100 mg L-1. Optical rotation measurements estimated the proportion of β/α isomers in lactose solutions. Besides, solubility and super- solubility was determined to build the MZ. The presence of carrageenans changed both the time to reach the mutarotation balance and the proportion of β/α isomers at mutarotation equilibrium. Carrageenans decreased the solubility of lactose in a range of temperatures between 10 and 60 °C and reduced the metastable zone width (MZW).
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Affiliation(s)
- Yanira I Sánchez-García
- The Graduate School, Graduate Program in Chemistry, Chemistry School, Autonomous University of Chihuahua, Mexico
| | - Néstor Gutiérrez-Méndez
- The Graduate School, Graduate Program in Chemistry, Chemistry School, Autonomous University of Chihuahua, Mexico.
| | - Iván Salmerón
- The Graduate School, Graduate Program in Chemistry, Chemistry School, Autonomous University of Chihuahua, Mexico
| | - Víctor H Ramos-Sánchez
- The Graduate School, Graduate Program in Chemistry, Chemistry School, Autonomous University of Chihuahua, Mexico
| | - Martha Y Leal-Ramos
- The Graduate School, Graduate Program in Chemistry, Chemistry School, Autonomous University of Chihuahua, Mexico
| | - David R Sepúlveda
- Research Center for Food and Development (CIAD), Cuauhtemoc City, Mexico
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31
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Koizumi H, Uddin MA, Kato Y. Effect of ultrasonic irradiation on γ-Fe2O3 formation by co-precipitation method with Fe3+ salt and alkaline solution. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Pal S, Nikam AV, Kulkarni AA. Antisolvent based ultrasound-assisted batch and continuous flow precipitation of metformin hydrochloride particles. J Flow Chem 2021. [DOI: 10.1007/s41981-020-00137-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Harika VK, Penki TR, Loukya B, Samanta A, Xu GL, Sun CJ, Grinberg I, Deepak FL, Amine K, Aurbach D, Gedanken A. Sustainable existence of solid mercury (Hg) nanoparticles at room temperature and their applications. Chem Sci 2021; 12:3226-3238. [PMID: 34164091 PMCID: PMC8179425 DOI: 10.1039/d0sc06139e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 01/06/2021] [Indexed: 12/20/2022] Open
Abstract
Although liquid mercury (Hg) has been known since antiquity, the formation of stable solid nano forms of Hg at room temperature has not been reported so far. Here, for the first time, we report a simple sonochemical route to obtain solid mercury nanoparticles, stabilized by reduced graphene oxide at ambient conditions. The as-formed solid Hg nanoparticles were found to exhibit remarkable rhombohedral morphology and crystallinity at room temperature. Extensive characterization using various physicochemical techniques revealed the unique properties of the solid nanoparticles of Hg compared to its bulk liquid metal phase. Furthermore, the solid nature of the Hg nanoparticles was studied electrochemically, revealing distinctive properties. We believe that solid Hg nanoparticles have the potential for important applications in the fields of electroanalytical chemistry and electrocatalysis.
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Affiliation(s)
- Villa Krishna Harika
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Department of Chemistry, Bar-Ilan University Ramat-Gan 5290002 Israel
| | - Tirupathi Rao Penki
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Department of Chemistry, Bar-Ilan University Ramat-Gan 5290002 Israel
| | - Boddapati Loukya
- Nanostructured Materials Group, Department of Advanced Electron Microscopy Imaging and Spectroscopy, International Iberian Nanotechnology Laboratory (INL) Avenida Mestre Jose Veiga Braga 4715-330 Portugal
| | - Atanu Samanta
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Department of Chemistry, Bar-Ilan University Ramat-Gan 5290002 Israel
| | - Gui-Liang Xu
- Chemical Sciences and Engineering Division, Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USA
| | - Cheng-Jun Sun
- Chemical Sciences and Engineering Division, Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USA
| | - Ilya Grinberg
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Department of Chemistry, Bar-Ilan University Ramat-Gan 5290002 Israel
| | - Francis Leonard Deepak
- Nanostructured Materials Group, Department of Advanced Electron Microscopy Imaging and Spectroscopy, International Iberian Nanotechnology Laboratory (INL) Avenida Mestre Jose Veiga Braga 4715-330 Portugal
| | - Khalil Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory 9700 South Cass Avenue Lemont IL 60439 USA
| | - Doron Aurbach
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Department of Chemistry, Bar-Ilan University Ramat-Gan 5290002 Israel
| | - Aharon Gedanken
- Bar-Ilan Institute for Nanotechnology and Advanced Materials (BINA), Department of Chemistry, Bar-Ilan University Ramat-Gan 5290002 Israel
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34
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35
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Fang C, Tang W, Wu S, Wang J, Gao Z, Gong J. Ultrasound-assisted intensified crystallization of L-glutamic acid: Crystal nucleation and polymorph transformation. ULTRASONICS SONOCHEMISTRY 2020; 68:105227. [PMID: 32615404 DOI: 10.1016/j.ultsonch.2020.105227] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 06/11/2023]
Abstract
In this paper, the crystallization of L-glutamic acid with application of ultrasound was explored in detail, including the process of nucleation, polymorphic control and polymorphic transformation. The induction time and metastable zone widths (MSZWs) were measured with and without ultrasound during the nucleation process. The induction time and MSZWs were decreased by ultrasound and the induction time was further decreased by higher ultrasonic power. The calculated nucleation parameters (such as interfacial energy, critical nucleus size and critical Gibbs energy) showed an obvious decrease in the presence of ultrasound, indicating that the nucleation was enhanced with application of ultrasound. By adjusting the ultrasonic power in the quench cooling process, the difference in nucleation temperatures would determine the distribution of polymorphs. In further, the polymorphic transformation was investigated quantitatively, and to the best of our knowledge, it was the first time to study the transformation kinetics with ultrasound using Avrami-Erofeev model. In the transformation process, the crystallization mechanism of the stable form was modified by ultrasound. The ultrasound eliminated the nucleation element in the rate-limiting step and facilitated the crystal growth of stable form. Thus, the ultrasound has a profound influence on L-glutamic acid crystallization.
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Affiliation(s)
- Chen Fang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, China
| | - Weiwei Tang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, China
| | - Songgu Wu
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, China
| | - Jingkang Wang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, China
| | - Zhenguo Gao
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, China.
| | - Junbo Gong
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin 300072, China.
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36
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Patil GK, Patil PB, Pardeshi SR, Rajput RL, Sonawane SH, Mujumdar A, Naik JB. Effect of process parameters on the recovery of lactose in an antisolvent acetone/acetone-ethanol mixture: A comparative study based on sonication medium. ULTRASONICS SONOCHEMISTRY 2020; 67:105128. [PMID: 32298975 DOI: 10.1016/j.ultsonch.2020.105128] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/09/2020] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Recovery of lactose from the whey using sonocrystallization was studied experimentally. The effect of sonication medium and irradiation power levels was evaluated using three different ultrasonic equipments. Effects of various parameters such as sonication time, pH of the medium, antisolvent (acetone and acetone-ethanol mixture) and concentration of lactose were determined. The optimal parametric conditions were analyzed using differential scanning calorimetry, thermogravimetric analysis, particle size distribution, and zeta potential measurements. Overall, the highest lactose recovery was obtained using a mixture of acetone and ethanol as antisolvent in bath sonication as well as atomization process.
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Affiliation(s)
- Govind K Patil
- University Institute of Chemical Technology, KBC North Maharashtra University, Jalgaon, Maharashtra 425001, India
| | - Pritam B Patil
- Department of Chemical Engineering, Shri S'ad Vidya Mandal Institute of Technology, Bharuch, Gujarat 392001, India
| | - Sagar R Pardeshi
- University Institute of Chemical Technology, KBC North Maharashtra University, Jalgaon, Maharashtra 425001, India
| | - Rahul L Rajput
- University Institute of Chemical Technology, KBC North Maharashtra University, Jalgaon, Maharashtra 425001, India
| | - Shirish H Sonawane
- Department of Chemical Engineering, National Institute of Technology, Warangal, AP 506004, India
| | - Arun Mujumdar
- Department of Bioresource Engineering, Macdonald College, McGill University, Sainte-Anne-de-Bellevue, Quebec, Canada
| | - Jitendra B Naik
- University Institute of Chemical Technology, KBC North Maharashtra University, Jalgaon, Maharashtra 425001, India.
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37
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Evrard Q, Houard F, Daiguebonne C, Calvez G, Suffren Y, Guillou O, Mannini M, Bernot K. Sonocrystallization as an Efficient Way to Control the Size, Morphology, and Purity of Coordination Compound Microcrystallites: Application to a Single-Chain Magnet. Inorg Chem 2020; 59:9215-9226. [PMID: 32521161 DOI: 10.1021/acs.inorgchem.0c01126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The size, morphology, and purity control of coordination compound powders is a key stage for their conversion into materials and devices. In particular, surface science techniques require highly pure bulk materials with a narrow crystallite-size distribution together with straightforward, scalable, and reproducible crystallization procedures. In this work we demonstrate how sonocrystallization, i.e. the application of ultrasound during the crystallization process, can afford very quickly powders made of crystallites with controlled size, morphology, and purity. We show that this process drastically diminishes the crystallite-size distribution (low polydispersity indexes, PDI) and crystallite aspect ratio. By comparing sonicated samples with samples obtained by various silent crystallization conditions, we unambiguously show that the improvement in the crystallite morphology and size distribution is not due to any thermal effect but to the sonication of the crystallizing media. The application of sonocrystallization on crystallization batches of single-chain magnets (SCMs) maintains the chemical integrity of the SCMs together with their original magnetic behavior. Moreover, luminescent measurements show that sonocrystallization induces an efficient micromixing that drastically enhances the purity of the SCM powders. We thus propose that sonocrystallization, which is already used on organic or MOF compounds, can be applied to (magnetic) coordination compounds to readily afford bulk powders for characterization or shaping techniques that require pure, morphology- and crystallite-size-controlled powder samples.
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Affiliation(s)
- Quentin Evrard
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Félix Houard
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Carole Daiguebonne
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Guillaume Calvez
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Yan Suffren
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Olivier Guillou
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France
| | - Matteo Mannini
- LAMM (Laboratory for Molecular Magnetism), Dipartimento di Chimica "Ugo Schiff" Università degli Studi di Firenze, INSTM, UdR Firenze Via della Lastruccia n. 3, Sesto Fiorentino (FI) 50019, Italy
| | - Kevin Bernot
- Univ Rennes, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France.,Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris, France
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38
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Ike Y, Hirasawa I. Effect of Ultrasonic Irradiation on the Probability of Primary Nucleation of
L
‐Arginine Hydrochloride. Chem Eng Technol 2020. [DOI: 10.1002/ceat.201900636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuki Ike
- Waseda UniversityGraduate School of Advanced Science and EngineeringDepartment of Applied Chemistry 3-4-1 Okubo, Shinjuku 169-8555 Tokyo Japan
| | - Izumi Hirasawa
- Waseda UniversityGraduate School of Advanced Science and EngineeringDepartment of Applied Chemistry 3-4-1 Okubo, Shinjuku 169-8555 Tokyo Japan
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Ramirez Mendoza H, Jordens J, Valdez Lancinha Pereira M, Lutz C, Van Gerven T. Effects of ultrasonic irradiation on crystallization kinetics, morphological and structural properties of zeolite FAU. ULTRASONICS SONOCHEMISTRY 2020; 64:105010. [PMID: 32312550 DOI: 10.1016/j.ultsonch.2020.105010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 01/30/2020] [Accepted: 02/06/2020] [Indexed: 06/11/2023]
Abstract
In this work, NaX zeolite was synthesized and the effect of ultrasound irradiation on reaction kinetics, morphological and structural properties was investigated. Ultrasound was applied, by using a plate transducer (91.8 kHz), for the first time during the crystallization of zeolite NaX, at high temperature, varying the irradiation moment and its duration. Furthermore, ultrasound was applied after the crystallization by a horn-type transducer (20-24 kHz) at low temperature. The effects of irradiated volume (100-300 mL), sonication time (2-10 min) and ultrasound power (10-200 W) were studied with a power intensity up to 100 W/cm2. It was found that the application of ultrasound during the first hour of crystallization resulted in 20% reduction of reaction time compared to a standard crystallization. Ultrasound can also reduce the agglomeration degree of the final powder by combining high power and long sonication time. After 5 min sonication time at 0.3 W/mL, the tapped density of the powder was increased by 10%, from 0.37 to 0.41 g/mL. Finally, by scanning electron microscopy (SEM) it was demonstrated that ultrasound can disrupt the agglomerates without affecting the morphology of individual crystals.
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Affiliation(s)
- Heidy Ramirez Mendoza
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium; Service Adsorption, ARKEMA, Groupement de Recherche de Lacq, BP34 64170 Lacq, France
| | - Jeroen Jordens
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | | | - Cécile Lutz
- Service Adsorption, ARKEMA, Groupement de Recherche de Lacq, BP34 64170 Lacq, France
| | - Tom Van Gerven
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium.
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Cairós C, González-Sálamo J, Hernández-Borges J. The current binomial Sonochemistry-Analytical Chemistry. J Chromatogr A 2020; 1614:460511. [DOI: 10.1016/j.chroma.2019.460511] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/17/2019] [Accepted: 09/02/2019] [Indexed: 01/02/2023]
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Abstract
The synthesis of nanostructured materials can be considered a research field of high importance, especially in the recent past, due to the unique properties that make these materials applicable in different fields of science and technology. Metallic nanoparticles gained significant interest due to the possibility to obtain them through biological means, among other techniques. Silver nanoparticles are some of the most investigated metallic nanoparticles, due to their recognized anticancer, antimicrobial, and antiviral potential. This chapter aims to summarize the emerging efforts to address current challenges and solutions in the treatment of infectious diseases, particularly through the use of silver nanoparticles biosynthesized via microbes and plants pathways.
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Zhang Y, Guo Y, Chen Y, Cao Y, Qi H, Yang S. Microstructure and Mechanical Properties of Al-12Si Alloys Fabricated by Ultrasonic-Assisted Laser Metal Deposition. MATERIALS (BASEL, SWITZERLAND) 2019; 13:E126. [PMID: 31888072 PMCID: PMC6982305 DOI: 10.3390/ma13010126] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/15/2019] [Accepted: 12/23/2019] [Indexed: 11/18/2022]
Abstract
This paper presents a method of ultrasonic-assisted laser metal deposition of Al-12Si alloy. The effects of the ultrasonic power and remelting treatment on the development of porosity, microstructural evolution, and tensile properties of the deposits were investigated. The results suggested that a combination of an ultrasonic vibration and remelting treatment could prolong the existence of the molten pool and the effect of the ultrasound. Therefore, the density of the samples increased from 95.4% to 99.1% compared to the as-prepared samples. The ultrasonic action in the molten pool could not only increase the density of the samples but also refine the grains and improve the tensile properties of the samples. Metallographic observation showed that the maximum size of the primary α-Al dendrites were refined from 277.5 µm to 87.5 µm. The ultimate tensile strength and elongation of the remelting treatment samples with ultrasonic vibration were ~227 ± 3 MPa and 12.2% ± 1.4%, respectively, which were approximately 1.17 and 1.53 times those of the as-prepared samples, respectively. According to the tensile properties and fracture analysis, the density increase dominated the improvement of the mechanical properties.
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Affiliation(s)
- Yang Zhang
- School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
| | - Yuqi Guo
- School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
| | - Yan Chen
- School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
| | - Yabin Cao
- School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
| | - Haibo Qi
- School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
| | - Shaopu Yang
- State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
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Heisel S, Holtkötter J, Wohlgemuth K. Measurement of agglomeration during crystallization: Is the differentiation of aggregates and agglomerates via ultrasonic irradiation possible? Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.115214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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44
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Belca LM, Ručigaj A, Teslič D, Krajnc M. The use of ultrasound in the crystallization process of an active pharmaceutical ingredient. ULTRASONICS SONOCHEMISTRY 2019; 58:104642. [PMID: 31450288 DOI: 10.1016/j.ultsonch.2019.104642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 06/02/2019] [Accepted: 06/14/2019] [Indexed: 06/10/2023]
Abstract
In this research, ultrasound was used in the crystallization process as an alternative to conventional spontaneous crystallization and seeding crystallization. The study was implemented on an active pharmaceutical ingredient ticagrelor, where the influence of ultrasound on its physical properties was evaluated. Process parameters of spontaneous crystallization, seeding crystallization and ultrasound-assisted crystallization were extensively studied while the pros and cons of each were adequately exposed. Compared to spontaneous crystallization and seeding crystallization ultrasound-assisted crystallization has significantly improved fundamental crystallization parameters: nucleation, the growth of crystals and filtration time. At the same time, the tendency of particles to agglomerate was reduced, which lead to the avoidance of energy and time-consuming process of final product deagglomeration, often problematic in conventional crystallization. In addition, different physical properties of ticagrelor were reached and evaluated, for instance, morphology, particle size distribution and different polymorphic forms. Polymorphic forms I, II and III were efficiently produced in a repeatable, robust and optimal way. Ultrasound-assisted crystallization was proved to have a beneficial effect on the crystallization process of API, even on the industrial scale, and can successfully replace spontaneous crystallization and seeding crystallization.
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Affiliation(s)
- Lucija Majal Belca
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, SI-1000 Ljubljana, Slovenia; Lek d.d., Verovškova 57, SI-1526 Ljubljana, Slovenia
| | - Aleš Ručigaj
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, SI-1000 Ljubljana, Slovenia
| | - Dušan Teslič
- Lek d.d., Verovškova 57, SI-1526 Ljubljana, Slovenia
| | - Matjaž Krajnc
- University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, SI-1000 Ljubljana, Slovenia.
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Niazov-Elkan A, Sui X, Kaplan-Ashiri I, Shimon LJW, Leitus G, Cohen E, Weissman H, Wagner HD, Rybtchinski B. Modular Molecular Nanoplastics. ACS NANO 2019; 13:11097-11106. [PMID: 31403766 DOI: 10.1021/acsnano.9b03670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In view of their facile fabrication and recycling, functional materials that are built from small molecules ("molecular plastics") may represent a cost-efficient and sustainable alternative to conventional covalent materials. We show how molecular plastics can be made robust and how their (nano)structure can be tuned via modular construction. For this purpose, we employed binary composites of organic nanocrystals based on a perylene diimide derivative, with graphene oxide (GO), bentonite nanoclay (NC), or hydroxyethyl cellulose (HEC), that both reinforce and enable tailoring the properties of the membranes. The hybrids are prepared via a simple aqueous deposition method, exhibit enhanced mechanical robustness, and can be recycled. We utilized these properties to create separation membranes with tunable porosity that are easy to fabricate and recycle. Hybrids 1/HEC and 1/NC are capable of ultrafiltration, and 1/NC removes heavy metals from water with high efficiency. Hybrid 1/GO shows mechanical properties akin to covalent materials with just 2-10% (by weight) of GO. This hybrid was used as a membrane for immobilizing β-galactosidase that demonstrated long and stable biocatalytic activity. Our findings demonstrate the utility of modular molecular nanoplastics as robust and sustainable materials that enable efficient tuning of structure and function and are based on self-assembly of readily available inexpensive components.
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Zeolite RHO Synthesis Accelerated by Ultrasonic Irradiation Treatment. Sci Rep 2019; 9:15062. [PMID: 31636339 PMCID: PMC6803675 DOI: 10.1038/s41598-019-51460-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/27/2019] [Indexed: 11/08/2022] Open
Abstract
In recent years, there are increasing interest on applying ultrasonic irradiation for the synthesis of zeolite due to its advantages including remarkable shortened synthesis duration. In this project, the potential of ultrasonic irradiation treatment on the synthesis of zeolite RHO was investigated. Ultrasonic irradiation treatment time was varied from 30 to 120 minutes for the synthesis of zeolite RHO. The zeolite RHO solid samples were characterized with X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA) and nitrogen adsorption-desorption analysis. The application of ultrasonic irradiation treatment in this study has accelerated the synthesis of zeolite RHO where the synthesis duration has been significantly shortened to 2 days compared to 8 days required by conventional hydrothermal heating without ultrasonic irradiation treatment. Highly crystalline zeolite RHO crystals in truncated octahedron morphology were successfully formed.
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Nalesso S, Bussemaker MJ, Sear RP, Hodnett M, Lee J. A review on possible mechanisms of sonocrystallisation in solution. ULTRASONICS SONOCHEMISTRY 2019; 57:125-138. [PMID: 31208608 DOI: 10.1016/j.ultsonch.2019.04.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/01/2019] [Accepted: 04/10/2019] [Indexed: 05/24/2023]
Abstract
Sonocrystallisation is the application of ultrasound to the crystallisation process. The benefits obtained by sonication have been widely studied since the beginning of the 20th century and so far it is clear that ultrasound can be a very useful tool for enhancing crystallisation and controlling the properties of the final product. Crystal size, polymorphs, purity, process repeatability and lower induction time are only some of the advantages of sonocrystallisation. Even though the effects of sonication on crystallisation are quite clear, the physical explanation of the phenomena involved is still lacking. Is the presence of cavitation necessary for the process? Or is only the bubbles surface responsible for enhancing crystallisation? Are the strong local increases in pressure and temperature induced by cavitation the main cause of all the observed effects? Or is it the strong turbulence induced in the system instead? Many questions still remain and can only be appreciated with an understanding of the complexity behind the individual processes of crystallisation and acoustic cavitation. Therefore, this review will first summarise the theories behind crystallisation and acoustic cavitation, followed by a description of all the current proposed sonocrystallisation mechanisms, and conclude with an overview on future prospects of sonocrystallisation applications.
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Affiliation(s)
- Silvia Nalesso
- Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom.
| | - Madeleine J Bussemaker
- Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
| | - Richard P Sear
- Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
| | - Mark Hodnett
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - Judy Lee
- Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom.
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Bhoi S, Das A, Kumar J, Sarkar D. Sonofragmentation of two-dimensional plate-like crystals: Experiments and Monte Carlo simulations. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.03.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Dibaei M, Rouini MR, Sheikholeslami B, Gholami M, Dinarvand R. The effect of surface treatment on the brain delivery of curcumin nanosuspension: in vitro and in vivo studies. Int J Nanomedicine 2019; 14:5477-5490. [PMID: 31409999 PMCID: PMC6649305 DOI: 10.2147/ijn.s199624] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 06/04/2019] [Indexed: 11/23/2022] Open
Abstract
Background: Curcumin, a bioactive component with multiple characteristics, has been shown to have many therapeutic effects. However, there are several limitations regarding the use of curcumin such as instability, low solubility, poor bioavailability, and rapid elimination. Different approaches have been used to solve these problems. Materials and methods: In this study, surface-modified nanosuspension (NS) is investigated as a novel brain delivery system. Two different methods were used for the preparation of nanosuspensions with two different stabilizers. The surface of the nanosuspensions was coated with D-α-tocopheryl polyethylene glycol 1,000 succinate (TPGS) and Tween 80 using physical adsorption. Curcumin NSs were prepared using two different top-down techniques by high-pressure homogenizer and probe sonicator. A validated sensitive and selective high-performance liquid chromatography method using fluorescence detection was used for the determination and quantification of curcumin. Pharmacokinetics and biodistribution of curcumin NSs and solutions after intravenous administration in rats were studied. Results: Higher levels of curcumin in the brain were detected when Tween 80-coated NS was used compared with the curcumin solution and TPGS coated NS (TPGS-NS) (P-value<0.05). Absorption of ApoE and/or B by Tween 80-coated nanoparticles (NPs) from the blood were caused transferring of these NPs into the brain using receptor-mediated endocytosis. Distribution of TPGS-NS in the brain compared with the curcumin solution was higher (P-value<0.05). Higher levels of curcumin concentration in the liver, spleen, and lung were also observed with TPGS-NS. Conclusion: The results of this study indicate that the surface-coating of NSs by Tween 80 may be used to improve the biodistribution of curcumin in the brain.
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Affiliation(s)
- Maryam Dibaei
- Biopharmaceutics and Pharmacokinetic Division, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad-Reza Rouini
- Biopharmaceutics and Pharmacokinetic Division, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Behjat Sheikholeslami
- Biopharmaceutics and Pharmacokinetic Division, Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdi Gholami
- Experimental Medicine Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Rassoul Dinarvand
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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50
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Ge L, Zhu Y, Qi Y, Chen Y, Yang K. Enantioseparation of racemic bupivacaine via ultrasonic-assisted diastereomeric crystallization using 12,14-dinitrodehydroabietic acid. ULTRASONICS SONOCHEMISTRY 2019; 55:256-261. [PMID: 30712856 DOI: 10.1016/j.ultsonch.2019.01.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 01/03/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
12,14-Dinitrodehydroabietic acid (12,14-dinitroDHAA), a chiral acid obtained by the nitration of optical dehydroabietic acid (DHAA), was successfully employed as resolving agent. The resolution of racemic bupivacaine by ultrasonic-assisted diastereomeric crystallization in ethanol was investigated. The results indicated that ultrasonic-assist can well facilitate resolution of (R,S)-bupivacaine and a higher enantiomeric excess (ee) and yield was obtained for (S)-bupivacaine, and while without ultrasound, the ee value decreases by increasing the crystallization time. A Box-Behnken experimental design with four factors (amount of 12,14-dinitroDHAA, ethanol amount, ultrasonic power and crystallization temperature) combined with response surface methodology (RSM) was applied to explore resolution effects. A second-order polynomial equation was adequate to model the relationship between the ee (or yield) and the dependent variables. When maintaining a lower limit of 90% for the yield of (S)-bupivacaine, the optimal resolution conditions by RSM were 12,14-dinitroDHAA/bupivacaine molar ratio of 1.6, solvent/propranolol ratio of 16.5 mL/g, 63.2 W ultrasonic power and crystallization temperature of 0 °C, respectively. Under the optimal conditions, the experimental ee and yield of (S)-bupivacaine were 69.8% and 87.5%.
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Affiliation(s)
- Li Ge
- Department of Pharmaceutical Engineering, Medical College, Guangxi University, Nanning 530004, China
| | - Yi Zhu
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yonghui Qi
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Yande Chen
- School of Chemistry & Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Kedi Yang
- Department of Pharmaceutical Engineering, Medical College, Guangxi University, Nanning 530004, China.
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