Ultrasonics Sonochemistry最新文献

{"title":"Ultrasound-enhanced bio-based active packaging films derived from passion fruit waste pectin: structural evolution, property correlations, and antioxidant activity through eggshell and oleuropein integration","authors":"Jiaman Sun ,&nbsp;Ge Chen ,&nbsp;Jiaying Huang ,&nbsp;Jinna Wang ,&nbsp;Xunhe Huang ,&nbsp;Liu Yang ,&nbsp;Xiaonan Zhang","doi":"10.1016/j.ultsonch.2025.107596","DOIUrl":"10.1016/j.ultsonch.2025.107596","url":null,"abstract":"<div><div>Passion fruit peel, rich in natural pectin, is often discarded as agricultural waste, resulting in a significant loss of its potential value. In this study, pectin was extracted from discarded passion fruit peels and used to fabricate a multifunctional composite film <em>Via</em> an ultrasound-assisted casting method, incorporating eggshell powder and oleuropein as functional additives. Ultrasound treatment not only promoted the uniform dispersion of fillers, but also facilitated molecular interactions, thereby enhancing film formation and structural integrity. The molecular structure, mechanical strength, thermal stability, barrier properties, and antioxidant activity of the resulting films were systematically investigated. Through optimization experiments, the best-performing film was found to contain 2 % (w/w) eggshell powder and 1 % (w/w) oleuropein. This formulation provided the highest overall performance, achieving a tensile strength of 2.68 MPa, a water vapor transmission rate of 11.66 g/m²/24 h, and a DPPH radical scavenging activity of 80 %. (1) FTIR analysis revealed that Ca²⁺ ions from eggshell powder formed stable ionic cross-linking networks with pectin molecules, as evidenced by the redshift of hydroxyl stretching peaks (from 3300 to 3259 cm⁻¹), indicating the formation of coordination bonds. (2) When the concentration of eggshell powder ranged from 1.5 to 2.5 %, the tensile strength of the film increases of 1.77–2.68 MPa, while the water vapor transmission rate decreased of 14.31–11.66 g/m²/24 h, representing an 18.4 % enhancement in barrier performance. (3) The incorporation of oleuropein significantly improved the antioxidant capacity of the film in a dose-dependent manner. Specifically, 2,2-diphenyl-1-picrylhydrazyl (DPPH)radical cavenging activity increased markedly from 16 % to 80 % as the oleuropein concentration was elevated from 0.1 to 1.5 %. This progressive enhancement reflects the strong electron-donating and hydrogen-atom transfer ability of oleuropein, which can effectively neutralize free radicals and terminate chain reactions of oxidative processes. The polyphenolic structure of oleuropein provides multiple hydroxyl groups capable of interacting with reactive species, thereby amplifying the overall antioxidant response of the composite films. These findings demonstrate that the developed composite film holds great promise for active food packaging applications, providing a sustainable approach for the high-value utilization of agricultural by-products and promoting the development of eco-friendly packaging materials.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"122 ","pages":"Article 107596"},"PeriodicalIF":9.7,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Green recovery of phenolics from bitter orange flowers: Natural deep eutectic solvent-ultrasound synergistic extraction, adsorptive purification, and UPLC/Q-TOF-MS/MS analysis","authors":"Ziyu Lv ,&nbsp;Jing Ma ,&nbsp;Chi Wei ,&nbsp;Jiaqi Wang ,&nbsp;Dan Wang ,&nbsp;Xinxin Cheng ,&nbsp;Guoliang Chen ,&nbsp;Luis A.J. Mur ,&nbsp;Yanfeng Wang ,&nbsp;Duo Cao","doi":"10.1016/j.ultsonch.2025.107597","DOIUrl":"10.1016/j.ultsonch.2025.107597","url":null,"abstract":"<div><div>Bitter orange flowers (BOF), a renowned medicinal and edible botanical resource, are rich in phenolic compounds with significant potential for health and industrial applications. However, efficient extraction and purification techniques for recovering bioactive phenolics remain underexplored. To address this gap, this study aimed to develop an eco-friendly integrated strategy combining natural deep eutectic solvent-ultrasound synergistic extraction (NADES-USE) with adsorptive purification for efficient recovery of total phenolics from BOF (BOF-TP). First, choline chloride-ethylene glycol (ChCl-EG) was determined to be the optimal extraction solvent from 12 synthesized NADESs and 3 common solvents. Employing Box-Behnken design (BBD), the optimized parameters for NADES-USE (38 % aqueous ChCl-EG, 18 mL/g, 345 W, 43 min, and 55 °C) resulted in a BOF-TP yield of 104.58 ± 0.34 mg/g, which was 1.30 to 2.16 times higher than those achieved with conventional solvents. Then, AB-8 resin demonstrated optimal adsorption–desorption performance for BOF-TP, with adsorption behavior strongly conforming to Langmuir isotherm and pseudo-second-order kinetic models. Thermodynamic analysis confirmed a spontaneous, exothermic physisorption process with decreasing entropy. The breakthrough curves and gradient elution curves were utilized to establish a chromatographic purification process for crude BOF-TP extracts, achieving a purity of 75.62 ± 0.95 %. Finally, a validated UPLC-Q/TOF-MS/MS method facilitated comprehensive chemical characterization and simultaneous quantification of seven bioactive compounds, serving as a basis for the quality control of purified BOF-TP extracts. In conclusion, this work demonstrates that the combination of NADES-USE and adsorptive purification offers significant potential for producing highly purified BOF-TP extract for further use in food and pharmaceutical applications.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"122 ","pages":"Article 107597"},"PeriodicalIF":9.7,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonic vibration-assisted arc machining of Inconel 718: Achieving concurrent processing efficiency enhancement and microstructure regulation","authors":"Shengwei Ding ,&nbsp;Jianping Zhou ,&nbsp;Hui Yu ,&nbsp;Bingbing Wang ,&nbsp;Yizhou Zhang ,&nbsp;Yu Ren ,&nbsp;Yinan Zhao ,&nbsp;Xujun Guo ,&nbsp;Tianyu Sun ,&nbsp;Jiangtao Hu ,&nbsp;Yan Xu","doi":"10.1016/j.ultsonch.2025.107600","DOIUrl":"10.1016/j.ultsonch.2025.107600","url":null,"abstract":"<div><div>The arc discharge machining technology achieves efficient material erosion through high-energy discharge, but its intense thermal coupling leads to instability in phase transition control, resulting in an essential conflict between processing efficiency and surface integrity. This fundamental scientific issue hinders the high-integrity manufacturing of advanced materials under extreme conditions. The intermittent contact of ultrasonic vibration-assisted machining technology explains its advantages in processing performance. Based on this, this paper proposes a new paradigm of ultrasonic-arc composite machining (UEAM), which achieves the coordinated regulation of the energy-precision paradox through dynamic modulation of multi-physical fields. Firstly, the full-cycle dynamic evolution of the plasma channel in UEAM and conventional electrical arc machining (EAM) is captured through pulse discharge tests combined with in-situ high-speed photography. On this basis, the processing performance of UEAM is verified through continuous milling discharge tests. The research shows: The ultrasonic vibration induces spatial–temporal reconstruction of the plasma, shortening the breakdown delay by 84.6 % (from 812.5 μs to 125 μs), while increasing the discharge frequency by 150 % (from 16 peaks/s to 40 peaks/s); The 20 kHz lateral vibration excites cavitation microjet and melt pool micro-turbulence, synergistically reducing the C/O enrichment of the recast layer by 31.36 %/70.73 % (to 18.65 %/3.52 %), and restoring the Ni content to 40.89 %; XRD phase analysis confirms that ultrasonic vibration significantly inhibits the formation of brittle phases such as Cr₂O₃ and NiFe₂O₄, reducing the recast layer thickness by 74.8 % (from 103 μm to 26 μm). This technology achieves the coordinated enhancement of element distribution homogeneity and surface integrity through a three-level synergistic mechanism of “plasma dispersion-melt pool mass transfer-solidification control” providing a general solution for high-precision and low-damage machining of high-temperature alloys.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"122 ","pages":"Article 107600"},"PeriodicalIF":9.7,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145298063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Special issue on “Emerging applications of ultrasound technology in colloids, polymers and interfaces”","authors":"Patrick Tang Siah Ying (Managing Guest Editor),&nbsp;Sivakumar Manickam,&nbsp;Tan Khang Wei,&nbsp;Asgar Ali","doi":"10.1016/j.ultsonch.2025.107575","DOIUrl":"10.1016/j.ultsonch.2025.107575","url":null,"abstract":"","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"121 ","pages":"Article 107575"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145136018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cavitation-vibration coupling mechanism in ultrasonic guidewire vascular ablation","authors":"Guang Yao,&nbsp;Maozhong Wu,&nbsp;Jianhua Lai,&nbsp;Youcheng Lv,&nbsp;Lijuan Zheng,&nbsp;Chengyong Wang","doi":"10.1016/j.ultsonch.2025.107474","DOIUrl":"10.1016/j.ultsonch.2025.107474","url":null,"abstract":"<div><div>Effective treatment of diverse vascular occlusions requires precise energy delivery and tissue-specific ablation strategies. This study systematically investigates the coupled mechanical vibration and cavitation mechanisms of a novel flexible ultrasonic guidewire during ablation of calcified, lipid-rich, and thrombotic occlusion mimics. Integrating numerical simulations and experimental validation, this work elucidates the dynamic interplay between ultrasonic parameters and tissue-specific ablation outcomes. For calcified mimics, mechanical vibrational impact is the dominant ablation mechanism, achieving substantial material removal primarily through fracture. Lipid-rich tissue ablation is driven by emulsification via cavitation microjets and acoustic streaming, generating microparticles with sizes of 10–250 μm, controllable by ultrasonic power. Thrombus ablation involves initial penetration followed by erythrocyte lysis, primarily mediated by transient cavitation. Crucially, guidewire bending significantly attenuates tip vibration amplitude, resulting in a reduction of 14.3–30.9 %, with titanium alloy exhibiting superior energy transmission stability under curvature compared to nickel-titanium. These findings highlight distinct, tissue-dependent ablation paradigms: mechanical fragmentation for hard tissues compared to cavitation and streaming induced emulsification or lysis for soft tissues. This mechanistic understanding is foundational for designing adaptive ultrasonic guidewires capable of adjusting energy delivery modes based on real time feedback of tissue characteristics, thereby enhancing the precision and efficacy of endovascular interventions.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"121 ","pages":"Article 107474"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fundamentals of acoustic and hydrodynamic cavitation","authors":"Xun Sun ,&nbsp;Sivakumar Manickam ,&nbsp;Yang Tao ,&nbsp;Xiaoge Wu","doi":"10.1016/j.ultsonch.2025.107573","DOIUrl":"10.1016/j.ultsonch.2025.107573","url":null,"abstract":"","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"121 ","pages":"Article 107573"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145136038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioeffects of ultrasonics in environmental and medical applications.","authors":"Xiaoge Wu, Juan Tu, Jun-Jie Zhu","doi":"10.1016/j.ultsonch.2025.107595","DOIUrl":"https://doi.org/10.1016/j.ultsonch.2025.107595","url":null,"abstract":"","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":" ","pages":"107595"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Remote biofilm dislodgment using focused acoustic vortex","authors":"Chih-Hsien Li ,&nbsp;Wei-Hao Chao ,&nbsp;Ping-Ching Wu ,&nbsp;Ching-Hsiang Fan","doi":"10.1016/j.ultsonch.2025.107423","DOIUrl":"10.1016/j.ultsonch.2025.107423","url":null,"abstract":"<div><div>Biofilms constitute a major challenge in treating implant-associated and chronic infections due to their structural resilience and drug resistance, particularly as implant demand rises due to aging populations. Conventional methods are often invasive, complex, and costly, while focused ultrasound (FUS) poses risks related to biocompatibility and tissue damage. Distinguished by its helical phase structure and rotational energy distribution, focused acoustic vortex (FAV) theoretically generates stronger rotational forces and acoustic streaming than FUS under identical acoustic conditions. This study investigates the feasibility of FAV technique for biofilm removal. Biofilms <em>in vitro</em> model were established using <em>Escherichia coli</em>, and a 2-MHz custom-built ultrasound transducer was employed to generate either FAV or FUS. Results indicated that FAV activation generated a centripetal vortical flow with rapid rotation, which was adjustable via acoustic pressure and duty cycle. Conversely, FUS generated solely outward acoustic streaming, exhibiting a flow velocity 43.6 % lower than that of FAV. At 1.75 MPa, implementing a 10 % duty cycle and a 180 s treatment, FAV removed 97 % of the biofilm, whereas FUS removed only 7 %. To achieve a comparable removal rate (95.8 %), FUS required 4 MPa for 10 minutes. Streaming velocity (R² = 0.99) exhibited a strong correlation with biofilm removal, while inertial cavitation (R² = 0.19) exhibited a weak correlation; thus, the former was identified as the primary contributing mechanism. Importantly, FAV treatment resulted in minimal thermal elevation (&lt;5 °C) and no significant reduction in cell viability, demonstrating its biosafety under the applied acoustic parameters. Synergistic tests with antibiotics further suppressed biofilm regrowth for up to 72 h, reducing bacterial concentration by 91 %. Future work will focus on <em>in vivo</em> biofilm models and assessing the safety and efficacy of combined treatments to advance clinical applications.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"121 ","pages":"Article 107423"},"PeriodicalIF":9.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144332150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine learning modelling of sonochemical systems using physically-derived dimensionless groups","authors":"Yucheng Zhu ,&nbsp;Ruosi Zhang ,&nbsp;Xueliang Zhu ,&nbsp;Xuhai Pan ,&nbsp;Michael Short ,&nbsp;Lian X. Liu ,&nbsp;Madeleine J. Bussemaker","doi":"10.1016/j.ultsonch.2025.107593","DOIUrl":"10.1016/j.ultsonch.2025.107593","url":null,"abstract":"<div><div>Sonochemistry involves complex multiparametric effects and nonlinear interactions that challenge conventional analysis and modelling approaches, especially when extrapolating across systems. Current models mainly depend on dimensional input variables, limiting generalisability and interpretability. This work proposes a machine learning strategy that integrates physically derived dimensionless variables (<em>Π</em>-terms) into a categorical boosting (CatBoost) algorithm to overcome these limitations. Four representative sonochemical outputs, namely sonochemiluminescence (SCL) intensity, SCL area, and ultrasonic oxidation from iodide oxidation radicals (IORS) and both IORS and H₂O₂, were selected as model targets. Seven supervised learning algorithms, including k-nearest neighbours (KNN), linear regression, support vector regression (SVR), random forest, gradient boosting, extreme gradient boosting (XGBoost), and CatBoost, were evaluated, with tree-based models exhibiting superior performance. CatBoost was finally selected as the baseline model. Regression models using the same <em>Π</em>-terms achieved R² = 0.67–0.90 on the full dataset but required dataset-specific corrections to predict independent validation sets. However, the machine learning framework reached higher predictive accuracy (R² = 0.87––0.95 on the reserved test set) and generalised to external validation datasets without additional corrections. Furthermore, a direct comparison between dimensional and dimensionless input strategies showed that dimensionless-input models provided superior generalisability and task-to-task consistency, alleviating plateau effects observed in dimensional models and yielding more stable feature attributions. SHAP analysis highlighted variables associated with cavitation thermal buffering and energy input scaling (&gt;50 % combined importance across tasks), offering mechanistic insights into these nonlinear behaviours that regression could not capture.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"122 ","pages":"Article 107593"},"PeriodicalIF":9.7,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sterilization effect of power airborn ultrasound combined with ultraviolet radiation on bacteria","authors":"Chen Li ,&nbsp;Han Yan ,&nbsp;Wei Feng ,&nbsp;Manni Yue ,&nbsp;Hua Cao ,&nbsp;Xiaojuan Ji ,&nbsp;Zeng Tu ,&nbsp;Zengtao Yang","doi":"10.1016/j.ultsonch.2025.107594","DOIUrl":"10.1016/j.ultsonch.2025.107594","url":null,"abstract":"<div><div>Controlling acute respiratory infections involves rapidly eradicating bacteria and viruses, which holds great significance. This study examined the effectiveness of combining power airborne ultrasound (US) with ultraviolet (UV) light to eradicate aerosolized pathogenic bacteria. This study evaluated the sterilization efficacy of a custom-built device that simultaneously delivers 40 W airborne ultrasound at 20–30 kHz and 275 nm ultraviolet light emitted by six 0.6 W LEDs. In the experiment, aerosol-encapsulated <em>Escherichia coli</em> was treated using both power airborne US and UV light. The bactericidal efficiency of this combined approach was evaluated, and the underlying mechanisms were explored. The results indicated substantial alterations in both the internal and external structures of the bacteria following gas-mediated, medium-to-high intensity US treatment. The ultrasonic cavitation effect significantly damaged the bacterial surface structure, while the microstreaming effect disrupted the cytoplasmic matrix. A marked increase in conductivity and β-galactosidase activity indicated bacterial wall disruption. Intracellular components, such as soluble proteins and adenosine triphosphate (ATP) content, showed a marked decrease, suggesting intracellular substance leakage. Exposure to airborne, medium-to-high intensity US resulted in a significant reduction in ATPase activity, implying interference with bacterial energy metabolism. The combined airborne ultrasound and UV treatment demonstrated superior bactericidal efficiency. It achieved over 95 % bacterial reduction within 120 s. Viable colonies decreased from 930 ± 156.986 CFU in untreated controls to 56.667 ± 15.965 CFU. Significant efficacy emerged within 15 s, reducing colonies to 442.778 ± 66.879 CFU. This performance substantially exceeded standalone UV or ultrasound treatments across all exposure durations. This work offers an efficient and rapid sterilization method with substantial application value for controlling disease transmission.</div></div>","PeriodicalId":442,"journal":{"name":"Ultrasonics Sonochemistry","volume":"122 ","pages":"Article 107594"},"PeriodicalIF":9.7,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}