INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2020
·Vol. 21
·期 5
·1637
·
IF 4.556
Shiyuan Fang,Weiqiang Qiu,Jun Mei,Jing Xie
Carvacrol is a natural compound known to be a highly effective antibacterial; however, it is a hydrophobic molecule, which is a limitation to its use within food packaging. Flaxseed gum (FG) films containing different contents of carvacrol (C) were produced by a film-casting method with sonication. The effects of sonication power and time on the properties of the FG-C films were investigated by measuring the film thickness, mechanical properties, contact angle, opacity, water vapor permeability (WVP), water sorption isotherm, Fourier transform infrared spectroscopy(FTIR), differential scanning calorimetry (DSC), antibacterial and antioxidant activities, and microstructure. The results showed that sonication power and time had significant effects on mechanical and barrier properties, film opacity, and degradability (p< 0.05). The tensile strength (TS) and elongation at break (EB) values exhibited an obvious improvement after sonication, and FG-0.5C-6030 had the lowest TS (33.40 MPa) and EB (4.46%) values. FG-C films formed a denser structure and the contact angle was improved as a result of sonication, which improved the integration of carvacrol into the FG matrix. In terms of microstructure, sonication resulted in a homogeneous and continuous crosssection of FG-C films, and regular surface and cross-sectional images were obtained through the highest acoustic intensity and longest time treatment. The FG films incorporated with carvacrol displayed antibacterial properties againstStaphylococcus aureus,Vibrio parahaemolyticus,Shewanella putrefaciens, andPseudomonas fluorescens, as well as increased antioxidant properties, and sonication was proven to enhance both of them.Keywords:sonication;active films;flaxseed gum;antibacterial agent;carvacrol
研究领域:
食品科学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2022
·
IF 6.14
Yu Niu,Lingling Xie,Tao Zhou,Jing Xu,Youchi Ding,Qing Han,Xuejing Qiu,Yongmei Xiao,Yongxia Miao,Limin Zhu,Xiaoyu Cao
In this work, nano LiV3O8(LVO) was synthesized using the rheological phase reaction method. Subsequently, after ultrasonic and heat treatment at 300 °C, the nano LVO Ut-300 was obtained and performed as cathode material in Na-ion batteries for the first time. Brunauer–Emmett–Teller analysis indicated that the specific area increased after ultrasonic treatment, which was conducive to the shuttling of sodium ions and enhancement of the electrochemical performance. The X-ray diffraction patterns displayed stable nano LVO Ut-300 material structure and larger interlayer spacing, and SEM and TEM performed more regular morphology. After the electrochemical tests, the nano LVO Ut-300 cathode delivered a high discharge capacity of 153.8 mA h g–1 in the voltage range of 1.8–4.0 V at 30 mA g–1. Meanwhile, the storage mechanism of Na+ was further explored by XPS, and kinetics characteristics of LVO/Na cells were revealed by pseudocapacitance analysis and galvanostatic intermittent titration technique (GITT) tests. In summary, nano LVO was processed by the ultrasonic method followed by subsequent heat treatment, which could effectively improve the electrochemical behavior of LiV3O8 as cathode materials of secondary Na-ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
MINERALS ENGINEERING
·
2025
·
IF 5
Lan Qiu,Huanyu Zhu,Zhongjian Liu,Hao Yi,Feifei Jia,Shaoxian Song
Picromerite is an important material for producing potash fertilizer. However, picromerite exhibited a poor recovery in the practical flotation process. In this study, we propose a strategy to improve the recovery by surface roughness modification with ultrasonic treatment. SEM images show that the surface morphology became rougher after ultrasonic treatment. Flotation tests demonstrate that the recovery of picromerite increased from the original 79.85% to 90.24% after ultrasonic treatment for 60 min. The mechanism of enhanced flotation was further analyzed with the help of adhesion-desorption force, surface wettability, collector adsorption, and XPS analysis, which indicated that ultrasonic treatment makes the surface more hydrophobic and exposed additional magnesium adsorption sites, thereby facilitating more effective reagent adsorption on the picromerite surface. The method of surface roughness modification by ultrasonic treatment proposed in this work provides a novel way to improve the flotation efficiency, which holds significant potential for enhancing the recovery of other similar soluble or semi-soluble minerals.
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产品关联
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Jihong Wang,Wenhao Liu,Qiubo Pan,Lei Zhang,Junchao Ren,Haiping Fang
ABSTRACT Regulating the charge-related properties in materials is highly valuable in the field of electronic devices. Charge transfer doping received significant attention as an efficient method of modulation. Graphene oxide (GO) is often used for regulation due to its abundance of oxygen-containing groups. However, the conventional operations to perform charge transfer doping for GO are complex, expensive and environmentally unfriendly. Here, we propose a charge transfer doping strategy by simply mixing GO suspension with 5 mg/ml 2,3,5,6-tetrafluoro-7,7,8,8-tetracyano-quinodimethane (F 4 TCNQ), together with ultrasonic treatment. Notably, the F 4 TCNQ-GO flexible photodetector exhibits outstanding responsivity ( R ) of up to 1.57 × 10 3 A/W in the 650 nm regime, surpassing most of the GO/graphene-based photodetectors reported in the past decade. Moreover, the photodetector successfully realizes in-sensor computing for complex pattern imaging, enabling clear and efficient multi-directional edge extraction. Experiments employing X-ray photoelectron spectra (XPS), X-ray diffraction spectra (XRD), Raman spectra, Ultraviolet-visible (UV-vis) spectra and scanning electron microscopy (SEM) reveal the stable non-covalent binding between GO and F 4 TCNQ through π-π interactions, as well as the electron transfer from GO to the F 4 TCNQ molecule, resulting in the formation of electron accumulation and depletion layers on the F 4 TCNQ molecule and GO, respectively. This finding holds great potential for regulating the electronic properties of a wide range of π-electron-rich two-dimensional materials in the fields of energy, biomedicine, environmental technology, and materials science.
研究领域:
材料科学
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电子器件
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能源技术
·
生物医学
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环境科技
✓ 已验证
产品关联
DOI
高影响因子
SUPRAMOLECULAR CHEMISTRY
·
2018
·
IF 1.451
Xinhua Cao,Aiping Gao,Dan Liu,Na Zhao,Qianqian Ding,Yiran Li
A new gelator 1 containing triphenylamine was designed and synthesized, and formed stable gel in ethyl acetate. The self-assembly process of molecule 1 was thoroughly investigated. The solid microsphere structure formed in gel 1 could be turned into nanotube in the transition process of gel to gel via sonication. At the same time, the intermolecular hydrogen bond of self-assembly system was obviously enhanced under sonication. The XRD and water contact angle experiments results of xerogel 1 before and after sonication showed great difference. The hydrophobicity of xerogel 1 film was obviously decreased with the change of contact angle from 142° to 129° after sonication at 100 W for one minute. From the results, it was possible that the solid microsphere was re-dissolved and further reassembled into nanotube. To our knowledge, it was the first example that the solid sphere structure was changed into nanotube in self-assembly system via sonication.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2016
·Vol. 133
·期 24
·
IF 1.866
Sara Riaz,Wang Feng,Ather Farooq Khan,Mian Hasnain Nawaz
In this article, we detail the sonication-induced self-assembly of polymeric porphyrin and fullerenes into distinct nanorings in solution form. The formation of these trenchant superstructures was the result of the delicate choice of different assembly protocols, solvents, and polymeric tails associated with porphyrin and fullerene. In this study, the sonication supposedly directed the lateral aggregation into uniform ring formation. The sonication time was found to be the key parameter in ring formation. Furthermore, the flexibility of polymeric arms and electronic interactions of porphyrin–fullerene gave rise to synergistically enhanced molecular interactions, and this resulted in discrete morphologies. Key optical data, including the absorption maxima of the complexes, and microscopic studies attested to the nature and morphology of the self-assembled complexes. This introduction of polymeric arms and sonication protocols in the porphyrin self-assembly was expected to allow the easy formation of diverse morphologies. Because of the facile fabrication process and uniform morphology, the resulting composite architectures might show promising applications in drug-delivery and advance materials. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43537.
研究领域:
材料科学
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化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2022
·
IF 9.231
Yiting Guo,Bengang Wu,Xiuyu Guo,Dandan Liu,Chengcheng Qiu,Haile Ma
This study aimed to investigate the effect of thermosonicaion (TS) with different frequency modes on the horseradish peroxidase (HRP) inactivation from the aspects of ultrasound field and enzyme structural changes. The relationships between the activity and structural modification were also evaluated. A thermal-only treatment was performed to estimate the action of ultrasound in TS treatment. Compared to mono-frequency, especially the 33 kHz, TS with dual- and tri-frequency modes showed an intensive inactivation impact on HRP. Exogenous hydroxyl radical test showed the hydroxyl radical played a vital role in HRP inactivation. Changes in hematin group, tertiary and secondary structures were also confirmed, and the inactivation process followed an all-or-none model. Morphological images indicated the aggregation and deformation of HRP molecules during TS treatment, and roughness values were changed accordingly. Pearson correlation analysis implied that the structural destruction on the spatial conformation of HRP was strongly related to its activity.
研究领域:
生物化学
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD HYDROCOLLOIDS
·
2023
·
IF 10.7
Shan Zhang,Hongjian Chen,Fang Geng,Bijun Xie,Zhida Sun,Qingde Huang,Dengfeng Peng,Yashu Chen,Qianchun Deng
As a natural plant-derived oil-in-water emulsion, oil bodies (OBs) with fine membrane structure have a great potential to be a typical green entrapping system. The dense membrane of OBs protects the interior readily oxidizable substance, but also severely blocks the passage of biologically active substances. Given full considerations of both the mobility and rigidity of the OBs membrane, in this work, tepidity-ultrasonic (TU) method was firstly applied to incorporate β-carotene within flaxseed oil bodies (FOB). Laser Scanning Confocal Microscopy (LSCM), Atomic force microscopy (AFM) and Cryo-Scanning Electron Microscope (Cryo-SEM) measurements demonstrated that TU could induce the transformation of FOB membrane and greatly promoted β-carotene encapsulation into FOB interior. In consistent with rheology, the infrared, ultraviolet and fluorescence spectra of the membrane protein, as well as force-deformation curves confirmed that the inserted β-carotene weaken the interaction of components in the membrane to a sharp reduction in membrane stiffness. The subsequent ultrasonic triggered interfacial membrane remodeling and particle size reduction, causing a significant improvement of interfacial membrane stiffness nearly back its original state and ultimately improving the stability of the system. The optimal encapsulation rate of β-carotene (96.88%) could be obtained at optimized ultrasonic condition. After 30-day storage, the relative encapsulation efficiency of β-carotene in FOB-β-TU remained at 84.06%. Thus, this paper reveals that the synergistic effect of tepidity-stirring and ultrasonic provides the possibility for solvent-free assisted encapsulation of hydrophobic bioactive substances in natural OBs. This easily applicable method is also conducive to fulfill its application in multiple food processing.
研究领域:
食品科学
·
生物技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Sciences
·
2019
·
IF 3.556
Haotian Jiang,Yun Xie,Yanli Ge,Hong He,Yongchun Liu
The dithiothreitol (DTT) assay is the most commonly used method to quantify the oxidative potential of fine particles. However, the reported DTT decay rates of carbon black (CB) materials vary greatly among different researchers. This might have resulted from either the intrinsic toxicity of CB or the unsuitability of the DTT assay protocol for CB particles. In the current study, the protocol of the DTT assay for CB materials has been carefully evaluated. It was found that the dispersion degree of CB particles in water has a great influence on the DTT decay rate of CB materials. For CB particles (special black 4A (SB4A) and Printex U) and single-walled carbon nanotube tube (SWCNT), the DTT decay rate after sonication for 10 min became 4.2, 4.6 and 1.7 times higher than that without sonication. The rate continued to grow as a function of ultrasound time up to 30 min of sonication. Although the concentration of soluble transition metals and surface oxygen-containing species such as carbonyls increased slightly with sonication, they had no significant effects on the measured DTT activity, while the increase in the dispersion degree of aggregates was found to play a vital role in the observed enhancement of the DTT decay rates for different CB materials. Based on our results, 30 min of sonication is recommended for sample dispersion when measuring the DTT decay rate of CB materials.
研究领域:
环境科学
·
毒理学
✓ 已验证
DOI
PubMed
高影响因子
Nanoscale Research Letters
·
2022
·Vol. 17
·期 1
·1-11
·
IF 5.418
Jiang Xingwang,Cheng Jie,Liu Ping,Gao Qingguo,Liu Liming
High-quality four-layer molybdenum disulfide (MoS 2 ) nanosheets with lateral dimension of about 11 µm were prepared by ultrasonic treatment of MoS 2 powder with assistance of 1-methyl-2-pyrrolidone (NMP) solvent. The optimal preparation conditions for the preparation of MoS 2 nanosheets were investigated from the aspects of ultrasonic processing time, ultrasonic power and amount ratio of MoS 2 powder and NMP solvent. At the same time, the MoS 2 nanosheets were employed as anode buffer layer in organic light-emitting diode (OLED) with copper nanowire (CuNW) film being anode. MoS 2 nanosheets can reduce roughness of CuNW film, protect CuNW film from oxidation and improve work function of CuNW film. Experiments show that MoS 2 nanosheets can significantly improve the current density and brightness of the OLED with CuNW film being anode. The maximum brightness of the OLED with MoS 2 anode buffer layer is 2.15 times that of the OLED without MoS 2 anode buffer layer. The current density of the OLED with MoS 2 anode buffer layer is also obviously increased compared with the OLED without MoS 2 anode buffer layer.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Junli Feng,Ningsi Xu,Yiran Jin,Yu Zhang,Fei Xu,Fang Yao,Zejun Wang,Liting Ji,Qing Shen
Despite the increasing global salmon production and the recognition of by-product value, nutrient-rich salmon heads are not fully utilized for direct consumption. This study explored the influence of homogenization combined with ultrasonic treatment (HUT) on micro-nano particle (MNPs) formation, nutrient composition, flavor profile, and overall quality of salmon head soup. Results showed that HUT effectively enhanced nutrient content. Meanwhile, the size of MNPs decreased from 1967.67 nm to 674.17 nm after HUT treatment, and the soup samples exhibited improved emulsification and enhanced whiteness with a more uniform texture. HUT also enhanced the soup's antioxidant activity. Moreover, HUT promoted the generation of volatile flavor compounds, increased the content of FAAs and 5′-nucleotides. Correlation analysis revealed a significant relationship between MNPs particle size and soup quality and flavor. Overall, HUT can enhance the nutritional value, flavor, and overall quality of salmon head soup.
研究领域:
食品科学
·
生物技术
·
营养学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2015
·Vol. 50
·期 5
·1275-1282
·
IF 1.384
Rana Muhammad Aadil,Xin-An Zeng,Zhi-Hong Zhang,Man-Sheng Wang,Zhong Han,Hong Jing,Saqib Jabbar
Summary Thermosonication (TS) is an emerging nonthermal processing technique used for the liquid food preservation and is employed to improve the quality and acceptability of grapefruit juice. In this study, fresh grapefruit juice samples were subjected to TS treatment in an ultrasonic cleaner with different processing variables, including temperature (20, 30, 40, 50 and 60 °C), frequency (28 kHz), power (70%, 420 W) and processing time (30 and 60 min) for bioactive compounds, inactivation of enzymes pectin methylesterase (PME), peroxidase (POD) and polyphenolase (PPO) and micro-organisms (total plate count, yeasts and moulds). The micro-organism activity was completely inactivated in the treatment (60 °C for 60 min). The TS treatment at 60 °C for 60 min exposure reduced PME, PPO and POD activity by 91%, 90% and 89%, respectively. Results indicate that the advantages of TS for grapefruit juice processing at low temperature could enhance the inactivation of enzymes and micro-organisms and it can be used as a potential technique to obtain better results as compared to alone .
研究领域:
食品科学
·
生物学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）