Enhanced ultrasonic degradation of methylene blue using a catalyst-free dual-frequency treatment
Ultrason Sonochem. 2024 Feb 3;103:106792. doi: 10.1016/j.ultsonch.2024.106792. Online ahead of print.ABSTRACTMethylene blue is one of the most common pollutants found in wastewater, primarily due to its widespread use in the dye industry. Consequently, it is imperative to explore environmentally friendly and efficient methods for degrading this pollutant into non-toxic byproducts. While ultrasonic degradation methods in combination with additives or catalysts have proven effective, such additives or catalysts may inadvertently contribute to secondary pollution. Moreover, the preparation of these catalysts imposes an additi...
Source: Ultrasonics Sonochemistry - February 16, 2024 Category: Chemistry Authors: Lukman A Yusuf Zeliha Ertekin Shaun Fletcher Mark D Symes Source Type: research
Towards scaling up the sonochemical synthesis of Pt-nanocatalysts
Ultrason Sonochem. 2024 Feb 5;103:106794. doi: 10.1016/j.ultsonch.2024.106794. Online ahead of print.ABSTRACTLarge scale production of electrocatalysts for electrochemical energy conversion devices such as proton exchange membrane fuel cells must be developed to reduce their cost. The current chemical reduction methods used for this synthesis suffer from problems with achieving similar particle properties such as particle size and catalytic activity when scaling up the volume or the precursor concentration. The continuous production of reducing agents through the sonochemical synthesis method could help maintain the reduci...
Source: Ultrasonics Sonochemistry - February 16, 2024 Category: Chemistry Authors: Henrik E Hansen Thea B Berge Frode Seland Svein Sunde Odne S Burheim Bruno G Pollet Source Type: research
Radical generation and bactericidal activity of nanobubbles produced by ultrasonic irradiation of carbonated water
Ultrason Sonochem. 2024 Feb 14;103:106809. doi: 10.1016/j.ultsonch.2024.106809. Online ahead of print.ABSTRACTOur previous study showed that nanobubbles (NBs) encapsulating CO2 gas have bactericidal activity due to reactive oxygen species (ROS) (Yamaguchi et al., 2020). Here, we report that bulk NBs encapsulating CO2 can be efficiently generated by ultrasonically irradiating carbonated water using a piezoelectric transducer with a frequency of 1.7 MHz. The generated NBs were less than 100 nm in size and had a lifetime of 500 h. Furthermore, generation of ROS in the NB suspension was investigated using electron spin resonan...
Source: Ultrasonics Sonochemistry - February 16, 2024 Category: Chemistry Authors: Takayuki Mokudai Michi Kawada Daisuke Tadaki Ayumi Hirano-Iwata Hiroyasu Kanetaka Hiroshi Fujimori Emiko Takemoto Michio Niwano Source Type: research
Ultrasound-induced structural changes of different milk fat globule membrane protein-phospholipids complexes and their effects on physicochemical and functional properties of emulsions
This study investigated the effects of ultrasonic time (5 min, 10 min, 15 min) and power (150 W,300 W,500 W) on the structural properties of three types of phospholipids composed of different fatty acids (milk fat globule membrane phospholipid (MPL), egg yolk lecithin (EYL), soybean lecithin (SL)) and milk fat globule membrane protein (MFGMP). We found that the ultrasound treatment changed the conformation of the protein, and the emulsions prepared by the pretreatment showed better emulsification and stability, the lipid droplets were also more evenly distributed. Meanwhile, the flocculation phenomenon of the lipid droplet...
Source: Ultrasonics Sonochemistry - February 16, 2024 Category: Chemistry Authors: Yanjie Zhao Qian Ma Tao Zhou Lu Liu Yuxin Wang Xiaodong Li Xiuxiu Zhang Xiaoqing Dang Kouadio Jean Eric-Parfait Kouame Source Type: research
Cavitation-induced particle engulfment via enhancing particle-interface interaction in solidification
Ultrason Sonochem. 2024 Feb 8;103:106801. doi: 10.1016/j.ultsonch.2024.106801. Online ahead of print.ABSTRACTParticle engulfment plays a vital role in the application of particulate reinforced metal matrix composites fabricated by ingot metallurgy. During solidification, particles are nevertheless pushed by an advancing front. As a model system, TiB2p/Al composites were used to investigate the particle engulfment facilitated by acoustic cavitation. The implosion of bubbles drives the particles plunging towards the solid/liquid interface, which increases the engulfment probability. The secondary dendrite arms are refined fr...
Source: Ultrasonics Sonochemistry - February 16, 2024 Category: Chemistry Authors: Kai Zhao Xinchen Li Xiangting Liu Enyu Guo Huijun Kang Zhigang Hao Jiehua Li Yubo Zhang Zongning Chen Tongmin Wang Source Type: research
Structural acoustic design of a sonicator to enhance energy transfer efficiency
Ultrason Sonochem. 2024 Feb 10;103:106804. doi: 10.1016/j.ultsonch.2024.106804. Online ahead of print.ABSTRACTThe study focuses on developing a comprehensive design approach for a flow-through ultrasonic reactor (sonicator) to tackle challenges like low energy transfer efficiency and unstable system performance. The simulation accounts for structural vibrations, structural-fluid interactions, and pressure distributions within the cavitation zone under single-frequency excitation. Different geometrical designs of cylindrical sonicators are analyzed, with input parameters tailored to acquire higher acoustic cavitation intens...
Source: Ultrasonics Sonochemistry - February 16, 2024 Category: Chemistry Authors: Sara Maghami Örjan Johansson Source Type: research
Optimizing the dewatering performance of zinc smelting iron Slag: Investigating the influence of ultrasonic Time, ultrasonic Power, and Liquid-Solid ratio using response surface methodology
This study explores a novel ultrasonic pretreatment process for iron slag. Using the response surface methodology, we investigated the effects of ultrasonic power, ultrasonic time, liquid-to-solid ratio, and their interactions on the water content, capillary suction time (CST), and filtration resistance of the slag. Regression equations were established to predict the relationships between the water content, CST, filtration resistance, and the various factors. The optimal process parameters were determined as an ultrasonic power of 60 W, ultrasonic time of 22 s, and a liquid-to-solid ratio of 4:1. Under these conditions, t...
Source: Ultrasonics Sonochemistry - February 16, 2024 Category: Chemistry Authors: Yue Cheng Linqing Dai Libo Zhang Bo Yu Chuxuan Yang Liang Zhou Baichuan Lou Source Type: research
Ultrasound-assisted polysaccharide extraction from Fritillaria ussuriensis Maxim. and its structural characterization, antioxidant and immunological activity
Ultrason Sonochem. 2024 Feb 5;103:106800. doi: 10.1016/j.ultsonch.2024.106800. Online ahead of print.ABSTRACTFritillaria ussuriensis Maxim. (F.M.) has been widely used in both food and medication for more than 2000 years. In order to achieve its comprehensive utilization and investigate the structural characterization and biology activity, response surface methodology (RSM) was used to optimize the ultrasound-assisted extraction conditions of F.M. polysaccharides. The optimal extraction conditions were ultrasonic power of 174.2 W, ratio of liquid to material of 40.7 mL/g and ultrasonic time of 82.0 min. In addition, a neut...
Source: Ultrasonics Sonochemistry - February 15, 2024 Category: Chemistry Authors: Shuang Jiang Qianbo Wang Zhibin Wang Gilwa Borjigin Jiahui Sun Yue Zhao Qi Li Xuepeng Shi Syed Faizan Ali Shah Xiaotong Wang Chunli Gan Yanli Wu Xiaodan Song Qian Li Chunjuan Yang Source Type: research
Ultrasound and sonochemistry enhance education outcomes: From fundamentals and applied research to entrepreneurial potential
Ultrason Sonochem. 2024 Feb 6;103:106795. doi: 10.1016/j.ultsonch.2024.106795. Online ahead of print.ABSTRACTWith this manuscript we aim to initiate a discussion specific to educational actions around ultrasonics sonochemistry. The importance of these actions does not just derive from a mere pedagogical significance, but they can be an exceptional tool for illustrating various concepts in other disciplines, such as process intensification and microfluidics. Sonochemistry is currently a far-reaching discipline extending across different scales of applicability, from the fundamental physics of tiny bubbles and molecules, up ...
Source: Ultrasonics Sonochemistry - February 15, 2024 Category: Chemistry Authors: David Fernandez Rivas Pedro Cintas Jarka Glassey Daria C Boffito Source Type: research
Ultrasound-assisted polysaccharide extraction from Fritillaria ussuriensis Maxim. and its structural characterization, antioxidant and immunological activity
Ultrason Sonochem. 2024 Feb 5;103:106800. doi: 10.1016/j.ultsonch.2024.106800. Online ahead of print.ABSTRACTFritillaria ussuriensis Maxim. (F.M.) has been widely used in both food and medication for more than 2000 years. In order to achieve its comprehensive utilization and investigate the structural characterization and biology activity, response surface methodology (RSM) was used to optimize the ultrasound-assisted extraction conditions of F.M. polysaccharides. The optimal extraction conditions were ultrasonic power of 174.2 W, ratio of liquid to material of 40.7 mL/g and ultrasonic time of 82.0 min. In addition, a neut...
Source: Ultrasonics Sonochemistry - February 15, 2024 Category: Chemistry Authors: Shuang Jiang Qianbo Wang Zhibin Wang Gilwa Borjigin Jiahui Sun Yue Zhao Qi Li Xuepeng Shi Syed Faizan Ali Shah Xiaotong Wang Chunli Gan Yanli Wu Xiaodan Song Qian Li Chunjuan Yang Source Type: research
Ultrasound and sonochemistry enhance education outcomes: From fundamentals and applied research to entrepreneurial potential
Ultrason Sonochem. 2024 Feb 6;103:106795. doi: 10.1016/j.ultsonch.2024.106795. Online ahead of print.ABSTRACTWith this manuscript we aim to initiate a discussion specific to educational actions around ultrasonics sonochemistry. The importance of these actions does not just derive from a mere pedagogical significance, but they can be an exceptional tool for illustrating various concepts in other disciplines, such as process intensification and microfluidics. Sonochemistry is currently a far-reaching discipline extending across different scales of applicability, from the fundamental physics of tiny bubbles and molecules, up ...
Source: Ultrasonics Sonochemistry - February 15, 2024 Category: Chemistry Authors: David Fernandez Rivas Pedro Cintas Jarka Glassey Daria C Boffito Source Type: research
Low-intensity ultrasound-assisted adaptive laboratory evolution of Bacillus velezensis for enhanced production of peptides
Ultrason Sonochem. 2024 Feb 11;103:106805. doi: 10.1016/j.ultsonch.2024.106805. Online ahead of print.ABSTRACTThis work aimed to explore low-intensity ultrasound-assisted adaptive laboratory evolution (US-ALE) of Bacillus velezensis and fermentation performance of mutant strains were investigated by nitrogen transformation metabolism. Results showed ultrasound accelerated the process of adaptive evolution and enhanced cell dry weight, amylase and protease activity of mutant strains, accompanied with the improved transformation abilities of NO-3-N to NH4+-N. Compared with original strain, the total peptide-N, peptide-N (<...
Source: Ultrasonics Sonochemistry - February 14, 2024 Category: Chemistry Authors: Siyu Ruan Yunliang Li Feng Lu Xiaoshuang Liu Anqi Zhou Haile Ma Source Type: research
Recent advancements in the utilization of ultrasonic technology for the curing of processed meat products: A comprehensive review
Ultrason Sonochem. 2024 Feb 7;103:106796. doi: 10.1016/j.ultsonch.2024.106796. Online ahead of print.ABSTRACTCuration meat products involves multiple stages, including pre-curing processing (thawing, cleaning, and cutting), curing itself, and post-curing processing (freezing, and packaging). Ultrasound are nonthermal processing technology widely used in food industry. This technology is preferred because it reduces the damages caused by traditional processing techniques on food, while simultaneously improving the nutritional properties and processing characteristics of food. The utilization of ultrasonic-assisted curing te...
Source: Ultrasonics Sonochemistry - February 13, 2024 Category: Chemistry Authors: Biao Li Mingming Zhong Yufan Sun Qiufang Liang Lipeng Shen Abdul Qayum Arif Rashid Abdur Rehman Haile Ma Xiaofeng Ren Source Type: research
Sulfation on polysaccharides from Zizania latifolia extracted using ultrasound: Characterization, antioxidant and anti-non-small cell lung cancer activities
In this study, Z. latifolia polysaccharides (ZLP) were extracted using UAE under an optimized power, followed by sulfation to give three derivatives (SZLP-1 ∼ 3). After characterization, the antioxidant and anti-NSCLC activities were evaluated. The optimal ultrasonic power for ZLP extraction was screened out to be 300 W, under which the yield was 16.9 ± 2.10 %, and the scavenging rate against 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical was 63.3 ± 5.71 %, significantly higher than those of other powers and hot-water extraction. A series of characterizations fully confirmed the sulfated modification of ZLP. Sulfation i...
Source: Ultrasonics Sonochemistry - February 9, 2024 Category: Chemistry Authors: Yang Zhang Rongnan Nie Wenxuan Liu Shuaiyi Dong Jingchun Yang Xinyu Wang Yang Wang Lixue Zheng Source Type: research
Numerical investigation of effect of geometric parameters on performance of rotational hydrodynamic cavitation reactor
The objective of this paper is to discuss the influence of geometric parameters on the performance of the rotational hydrodynamic cavitation reactor (RHCR) using numerical method. The novel RHCR is implemented by modifying a centrifugal impeller into a new one using the annular slit constriction (ASC) with circumferentially distributed blind holes. The cavitation intensity and cavitation generation rate are selected to evaluate the cavitation performance, the head is used to assess conveying performance, and the entropy generation theory is used to evaluate the energy loss in the impeller. The effect of the axial width, ra...
Source: Ultrasonics Sonochemistry - February 9, 2024 Category: Chemistry Authors: Xiang Zhang Renyong Lin Lingbo Zhang Jie Chen Ming Li Yong Wang Source Type: research
