Magnetic-acoustic actuated spinous microrobot for enhanced degradation of organic pollutants
Ultrason Sonochem. 2023 Dec 14;102:106714. doi: 10.1016/j.ultsonch.2023.106714. Online ahead of print.ABSTRACTA growing interest in the development of efficient strategies for the removal of organic pollutants from polluted water is emerging. As such, artificial micro/nano machines performing excellent water purification tasks have recently attracted more research attention of scientists. Hereby a spinous Fe3O4@PPy microrobot is presented that towards an efficient organic pollutant removal by enhancing Fenton-like reaction. The microrobot is fabricated by wrapping polypyrrole (PPy) on a spiny magnetic template prepared fro...
Source: Ultrasonics Sonochemistry - December 19, 2023 Category: Chemistry Authors: Shimin Yu Chenlu Liu Mingyang Sui Haiqiang Wei Haoyuan Cheng Yujing Chen Yanhe Zhu Haocheng Wang Penglei Ma Lin Wang Tianlong Li Source Type: research
Impact of ultrasonicated Lactobacillus delbrueckii subsp. bulgaricus, Streptococcus thermophilus and Lactiplantibacillus plantarum AF1 on the safety and bioactive properties of stirred yoghurt during storage
In this study, the effects of ultrasonicated Lactobacillus delbrueckii subsp. bulgaricus, Streptococcus thermophilus and Lactiplantibacillus plantarum AF1 (100 W, 30 kHz, 3 min) on the safety and bioactive properties of stirred yoghurt during storage (4 °C for 21 days) were investigated. The results showed that sonicated cultures were more effective in reducing pathogens than untreated ones. The highest antioxidant activity (DPPH and ABTS), α-glucosidase and α-amylase inhibition capacity were found in yoghurt containing sonicated probiotic + sonicated yoghurt starter cultures (P + Y + ). The highest amount of peptides (...
Source: Ultrasonics Sonochemistry - December 19, 2023 Category: Chemistry Authors: Aliakbar Gholamhosseinpour Seyed Mohammad Bagher Hashemi Fatemeh Safari Kaouther Kerboua Source Type: research
Ultrasound-assisted fermentation of Porphyra yezoensis sauce at different growth stages using Lactiplantibacillus plantarum: Metabolic response and biological activity
This study first employed ultrasonic-assisted fermentation of seaweed foot material with Lactiplantibacillus plantarum to produce Porphyra yezoensis sauce. The aim was to examine L. plantarum's growth and metabolism of nutritional components at different growth stages under low- (133.99 W/L) and high-ultrasonic power densities (169.17 W/L). After 24-h fermentation, L. plantarum exhibited a 21.32 % increase in the sonicated P. yezoensis sauce at 133.99 W/L and the logarithmic growth phase compared to that at 169.17 W/L. In addition, compared to the non-sonicated sauce, total phenolic and flavonoid contents increased by arou...
Source: Ultrasonics Sonochemistry - December 19, 2023 Category: Chemistry Authors: Jie Yang Tengqi Gao Qiqi Wang Jie Xu Feifei Zhou Yunfei Ding Hechao Du Saikun Pan Yang Tao Yue Wu Source Type: research
Ultrasound-Driven enhancement of Pt/C catalyst stability in oxygen reduction reaction
In this study, we focused on the effect of ultrasound on the synthesis of Pt/C via UPS and the resulting enhanced stability of Pt/C catalysts. Therefore, we compared Pt/C synthesized using a conventional polyol synthesis (Pt/C_P) and Pt/C synthesized via UPS (Pt/C_U) under similar synthesis conditions. The two catalysts had a similar Pt content and the average particle size of the Pt nanoparticles was similar; however, the uniformity and dispersion of Pt nanoparticles in Pt/C_U were better than those of Pt/C_P. Moreover, ex/in-situ analyses performed in a high-temperature environment, in which nanoparticles tend to agglome...
Source: Ultrasonics Sonochemistry - December 19, 2023 Category: Chemistry Authors: Hyunjoon Lee Eunbi Park Eunjik Lee Iksung Lim Tae-Hyun Yang Gu-Gon Park Source Type: research
Magnetic-acoustic actuated spinous microrobot for enhanced degradation of organic pollutants
Ultrason Sonochem. 2023 Dec 14;102:106714. doi: 10.1016/j.ultsonch.2023.106714. Online ahead of print.ABSTRACTA growing interest in the development of efficient strategies for the removal of organic pollutants from polluted water is emerging. As such, artificial micro/nano machines performing excellent water purification tasks have recently attracted more research attention of scientists. Hereby a spinous Fe3O4@PPy microrobot is presented that towards an efficient organic pollutant removal by enhancing Fenton-like reaction. The microrobot is fabricated by wrapping polypyrrole (PPy) on a spiny magnetic template prepared fro...
Source: Ultrasonics Sonochemistry - December 19, 2023 Category: Chemistry Authors: Shimin Yu Chenlu Liu Mingyang Sui Haiqiang Wei Haoyuan Cheng Yujing Chen Yanhe Zhu Haocheng Wang Penglei Ma Lin Wang Tianlong Li Source Type: research
Optimizing sludge dewatering efficiency with ultrasonic Treatment: Insights into Parameters, Effects, and microstructural changes
This study aims to evaluate the impact of ultrasonic treatment on sludge dewatering characteristics. A series of experiments were conducted to evaluate the dewatering characteristics of sludge under ultrasonic treatment. Experimental data was collected, and the effects of ultrasonic parameters on dewatering efficiency were analyzed. Ultrasound has the capacity to disintegrate sludge flocs, liberate tightly bound water, and enhance sludge dewatering capabilities. The application of ultrasound leads to the breakdown of sludge flocs, which facilitates a substantial amount of organic acids or carbonates. This, in turn, modifie...
Source: Ultrasonics Sonochemistry - December 18, 2023 Category: Chemistry Authors: Yongzheng Qi Jianhao Chen Haoqing Xu Silin Wu Ziming Yang Aizhao Zhou Yunjie Hao Source Type: research
Optimizing sludge dewatering efficiency with ultrasonic Treatment: Insights into Parameters, Effects, and microstructural changes
This study aims to evaluate the impact of ultrasonic treatment on sludge dewatering characteristics. A series of experiments were conducted to evaluate the dewatering characteristics of sludge under ultrasonic treatment. Experimental data was collected, and the effects of ultrasonic parameters on dewatering efficiency were analyzed. Ultrasound has the capacity to disintegrate sludge flocs, liberate tightly bound water, and enhance sludge dewatering capabilities. The application of ultrasound leads to the breakdown of sludge flocs, which facilitates a substantial amount of organic acids or carbonates. This, in turn, modifie...
Source: Ultrasonics Sonochemistry - December 18, 2023 Category: Chemistry Authors: Yongzheng Qi Jianhao Chen Haoqing Xu Silin Wu Ziming Yang Aizhao Zhou Yunjie Hao Source Type: research
Corrigendum to ''Effect of the arrangement of cavitation generation unit on the performance of an advanced rotational hydrodynamic cavitation reactor'' [Ultrason. Sonochem. 99 (2023) 106544]
Ultrason Sonochem. 2023 Dec 16:106725. doi: 10.1016/j.ultsonch.2023.106725. Online ahead of print.NO ABSTRACTPMID:38105155 | DOI:10.1016/j.ultsonch.2023.106725 (Source: Ultrasonics Sonochemistry)
Source: Ultrasonics Sonochemistry - December 17, 2023 Category: Chemistry Authors: Xun Sun Gaoju Xia Weibin You Xiaoqi Jia Sivakumar Manickam Yang Tao Shan Zhao Joon Yong Yoon Xiaoxu Xuan Source Type: research
Corrigendum to ''Effect of the arrangement of cavitation generation unit on the performance of an advanced rotational hydrodynamic cavitation reactor'' [Ultrason. Sonochem. 99 (2023) 106544]
Ultrason Sonochem. 2023 Dec 16:106725. doi: 10.1016/j.ultsonch.2023.106725. Online ahead of print.NO ABSTRACTPMID:38105155 | DOI:10.1016/j.ultsonch.2023.106725 (Source: Ultrasonics Sonochemistry)
Source: Ultrasonics Sonochemistry - December 17, 2023 Category: Chemistry Authors: Xun Sun Gaoju Xia Weibin You Xiaoqi Jia Sivakumar Manickam Yang Tao Shan Zhao Joon Yong Yoon Xiaoxu Xuan Source Type: research
Effects of different oleogelators on the structural properties and composition of iron walnut-oil oleogels
In this study, we compared the quality of iron walnut oil (IWO) oleogels prepared with different oleogelators, including γ-oryzanol/β-sitosterol (OZ-PS), γ-oryzanol/triglyceride (OZ-TC), monoglycerides (MGS), beeswax (BW), beeswax-monoglycerides (BW-MGS), and carnauba wax (CW). The physicochemical and component properties, rheological and textural parameters, macroscopic morphologies, and antioxidant capacities of the resulting oleogels were analyzed. In addition, their microscopic properties were analyzed using Fourier-transform infrared (FTIR), X-ray powder diffraction (XRD) spectroscopy, and polarized light microscop...
Source: Ultrasonics Sonochemistry - December 16, 2023 Category: Chemistry Authors: Pan Gao Ying Liu Shu Wang Chuanyang Huang Wu Zhong Jiaojiao Yin Chuanrong Hu Dongping He Xingguo Wang Source Type: research
The relationship between surface drug distribution of Dox-loaded microbubbles and drug release/cavitation behaviors with ultrasound
This study compared uniform-loaded MBs and cluster-loaded MBs to enhance our comprehension of drug-loaded MBs mediated drug delivery.PMID:38103369 | DOI:10.1016/j.ultsonch.2023.106728 (Source: Ultrasonics Sonochemistry)
Source: Ultrasonics Sonochemistry - December 16, 2023 Category: Chemistry Authors: Chia-Wei Lin Ching-Hsiang Fan Chih-Kuang Yeh Source Type: research
Characterization of the acoustic cavitation in ionic liquids in a horn-type ultrasound reactor
Ultrason Sonochem. 2023 Dec 13;102:106721. doi: 10.1016/j.ultsonch.2023.106721. Online ahead of print.ABSTRACTMost ultrasound-based processes root in empirical approaches. Because nearly all advances have been conducted in aqueous systems, there exists a paucity of information on sonoprocessing in other solvents, particularly ionic liquids (ILs). In this work, we modelled an ultrasonic horn-type sonoreactor and investigated the effects of ultrasound power, sonotrode immersion depth, and solvent's thermodynamic properties on acoustic cavitation in nine imidazolium-based and three pyrrolidinium-based ILs. The model accounts ...
Source: Ultrasonics Sonochemistry - December 16, 2023 Category: Chemistry Authors: Dalma Schieppati Mood Mohan Bruno Blais Kobra Fattahi Gregory S Patience Blake A Simmons Seema Singh Daria C Boffito Source Type: research
A switching method for traveling/standing wave transportation modes in two-dimensional acoustic fields using a dual-transducer support structure
Ultrason Sonochem. 2023 Dec 9;101:106724. doi: 10.1016/j.ultsonch.2023.106724. Online ahead of print.ABSTRACTThe dual-transducer support structure discussed has the advantages of a simple structure and low cost, as well as allowing for the use of both Traveling-Wave (TW) and Standing-Wave (SW) acoustic transportation, supporting its use in pharmaceutical and biochemical analysis, for example. By adjusting the distance between the vibrating plate and the reflector which forms SW field in the y direction, the control of the position of the SW nodes or the TW component along the x direction allows the formation of a Two-Dimen...
Source: Ultrasonics Sonochemistry - December 15, 2023 Category: Chemistry Authors: Guanyu Mu Huijuan Dong Tong Sun Kenneth T V Grattan Zhiguang Wu Jie Zhao Source Type: research
Investigation of the ultrasound-induced collapse of air bubbles near soft materials
Ultrason Sonochem. 2023 Dec 9;102:106723. doi: 10.1016/j.ultsonch.2023.106723. Online ahead of print.ABSTRACTA numerical investigation into the ultrasound-induced collapse of air bubbles near soft materials, utilizing a novel multi-material diffuse interface method (DIM) model with block-structured adaptive mesh refinement is presented. The present work expands from a previous five-equation DIM by incorporating Eulerian hyperelasticity. The model is applicable to any arbitrary number of interacting fluid and solid material. A single conservation law for the elastic stretch tensor enables tracking the deformations for all t...
Source: Ultrasonics Sonochemistry - December 15, 2023 Category: Chemistry Authors: Armand Shams Saeed Bidi Manolis Gavaises Source Type: research
A switching method for traveling/standing wave transportation modes in two-dimensional acoustic fields using a dual-transducer support structure
Ultrason Sonochem. 2023 Dec 9;101:106724. doi: 10.1016/j.ultsonch.2023.106724. Online ahead of print.ABSTRACTThe dual-transducer support structure discussed has the advantages of a simple structure and low cost, as well as allowing for the use of both Traveling-Wave (TW) and Standing-Wave (SW) acoustic transportation, supporting its use in pharmaceutical and biochemical analysis, for example. By adjusting the distance between the vibrating plate and the reflector which forms SW field in the y direction, the control of the position of the SW nodes or the TW component along the x direction allows the formation of a Two-Dimen...
Source: Ultrasonics Sonochemistry - December 15, 2023 Category: Chemistry Authors: Guanyu Mu Huijuan Dong Tong Sun Kenneth T V Grattan Zhiguang Wu Jie Zhao Source Type: research
