Innovative Food Science & Emerging Technologies
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2019
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IF 4.085
Ming Dong,Yujuan Xu,Yumei Zhang,Minyi Han,Peng Wang,Xinglian Xu,Guanghong Zhou
The present study was performed to clarify the effects of pulsed electric field (PEF) on the physicochemical properties and conformations of myofibrillar proteins (MPs) extracted from pale, soft, exudative (PSE)-like chicken breast meat. Various PEF parameters, including the electric field intensity (0–28 kV/cm) and pulse frequency (0–1000 Hz), were varied. The results showed that as the PEF intensity increased, the solubility, surface hydrophobicity and sulfhydryl group content of the MPs were significantly improved. However, when the intensity exceeded 18 kV/cm, these properties declined, which was possibly due to protein aggregation caused by functional group interactions. Additionally, the PEF treatment altered the rheological properties of PSE-like MPs and induced the formation of low-elasticity MPs. However, sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) demonstrated that the primary structure of the MPs was not altered after the PEF treatment. According to the circular dichroism (CD) spectroscopy results, the α-helix contents of the PEF-treated samples were increased but the β-turn and random coil contents were reduced. Industrial relevance The occurrence of PSE-like chicken meat is one of the most serious quality issues worldwide and can decrease the consumer's purchasing desire and result in extensive economic losses for the poultry processing industry. MPs play a vital role in the qualitative characteristics of chicken products. As a potential novel processing technology, PEF has potential applications for improving the functionality of PSE-like chicken protein to expand its application in the food industry.
研究领域:
食品科学
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蛋白质化学
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肉类加工
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2022
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IF 5.518
Wendong Hu,Yingrui Nie,Yang Wang,Pengcheng Gao,Yong Jiang
A facile synthetic route to composite particles with raspberry-like structure was reported, and further led to superhydrophobic and superlipophilic surface by the usage of these composite particles. In this approach, the poly(styrene-co-3-methacryloxypropyl trimethoxysilane) (P(St-MPS)) particles were fabricated by one-step dispersion polymerization . Then, the P(St-MPS)@SiO 2 composite particles with raspberry-like structure were obtained by hydrolysis of tetraethoxysilane (TEOS) with (P(St-MPS)) particles under alkaline conditions. The morphology of the (P(St-MPS))@SiO 2 composite particles could be controlled by adjusting the ratio of the initial reactants 3-methacryloxypropyl trimethoxysilane (MPS) and styrene (St). A possible mechanism of the morphology changes was also discussed, the reactive siloxane groups of the (P(St-MPS)) particles induce the growth of silica generated by the hydrolysis of tetraethoxysilane (TEOS) on its surface to form raspberry-like structure. In addition, the water contact angle (WCA) of the coating was 152° ± 2°, and the oil contact angle (OCA) of the coating was close to 0°, which demonstrated a superhydrophobic and superlipophilic properties by a rational surface modification of this P(St-MPS)@SiO 2 composite particles with raspberry-like structure. Hydrophobic properties could be adjusted by varying the surface morphology of the P(St-MPS)@SiO 2 composite particles. The coatings could be used in applications such as self-cleaning and oil-water separation and whole process was carried out under mild conditions and did not involve complex steps.
研究领域:
材料科学
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表面化学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Advanced Science
·
2023
·
IF 15.1
Yuhao Yuan,Yan Xu,Yiyang Mao,Hongbin Liu,Minning Ou,Zhangyuan Lin,Ruibo Zhao,Haitao Long,Liang Cheng,Buhua Sun,Shushan Zhao,Ming Zeng,Bangbao Lu,Hongbin Lu,Yong Zhu,Can Chen
In order to repair critical-sized bone defects, various polylactic acid-glycolic acid (PLGA)-based hybrid scaffolds are successfully developed as bone substitutes. However, the byproducts of these PLGA-based scaffolds are known to acidify the implanted site, inducing tiresome acidic inflammation. Moreover, these degradation productions cannot offer an osteo-friendly microenvironment at the implanted site, matching natural bone healing. Herein, inspired by bone microenvironment atlas of natural bone-healing process, an osteo-microenvironment stage-regulative scaffold (P80/D10/M10) is fabricated by incorporating self-developed decellularized bone matrix microparticles (DBM-MPs) and multifunctional magnesium hydroxide nanoparticles (MH-NPs) into PLGA with an optimized proportion using low-temperature rapid prototyping (LT-RP) 3D-printing technology. The cell experiments show that this P80/D10/M10 exhibits excellent properties in mechanics, biocompatibility, and biodegradability, meanwhile superior stimulations in osteo-immunomodulation, angiogenesis, and osteogenesis. Additionally, the animal experiments determined that this P80/D10/M10 can offer an osteo-friendly microenvironment in a stage-matched pattern for enhanced bone regeneration, namely, optimization of early inflammation, middle neovascularization, and later bone formation. Furthermore, transcriptomic analysis suggested that the in vivo performance of P80/D10/M10 on bone defect repair is mostly attributed to regulating artery development, bone development, and bone remodeling. Overall, this study reveals that the osteo-microenvironment stage-regulative scaffold provides a promising treatment for bone defect repair.
研究领域:
生物医学工程
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组织工程
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生物材料科学
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再生医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 45
·31500-31507
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IF 10.7
Yuying Wang,Fanjun Guo,Mengzhen Zhou,Qian Wu,Tao You,Zhengxiang Zhong,Jiankun Yang,Li Liu,Yudong Huang,Mingqiang Wang
Lithium metal batteries (LMBs) have been regarded as promising electrochemical energy storage systems due to the high theoretical specific capacity of metallic lithium. However, the uncontrolled growth of lithium dendrites, stemming from uneven lithium deposition, poses a significant challenge to their practical implementation. To tackle this issue, an ultra-thin composite separator, consisting of octamethacryloyloxy sesquioxane (MA–POSS), methacryloyloxy trimethoxysilane grafted holey graphene oxide (MPS–HGO), and aramid nanofibers (ANF), was prepared through a combination of phase transition-induced co-assembly and in situ polymerization techniques. Experiments indicate that the composite separator, with a thickness of only 3.8 μm, exhibits exceptional mechanical properties, specifically a tensile strength of 104 ± 5.1 MPa and a modulus of 3.23 ± 0.2 GPa, due to extensive hydrogen bonding and π–π interactions between the HGO sheets and ANF. Furthermore, benefiting from the synergistic effect of the abundant pores in MPS–HGO and the inhibition of stacking through the copolymerization of MPS–HGO and MA–POSS, the composite separator also demonstrates good electrolyte infiltration and a high lithium-ion transport number (tLi+ = 0.87), which not only acts as a physical obstacle but also efficiently regulates Li-ion transport to hinder irregular dendritic growth. The simultaneous regulation of Li-ion transport and mitigation of dendrite growth resulted in a long cycle life for Li|Li cells without dendrite deposition after 1500 cycles at a high current density of 5 mA cm−2. Moreover, the LiFePO4 (LFP)|Li battery with the composite separator displayed a capacity of 154 mA h g−1, a coulombic efficiency of 99%, and a high capacity retention of 99.6% after 250 cycles at 0.5C (85.7% after 1000 cycles at 2C). This work provides a promising new approach to fabricating high-performance lithium battery separators.
研究领域:
材料科学
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电化学
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储能技术
✓ 已验证
DOI
高影响因子
Surfaces and Interfaces
·
2024
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IF 5.7
Lingyun Ye,Haohui Li,Jiawei Xiang,Junqi Chen,Xin Zhang,Shaona Zheng,Wenbo Liao
In this study, Ag@SiO 2 core-shell nanoparticles were synthesized using the Stöber method and then physically mixing with MPS functionalized poly (styrene-co-acrylate) (PSA) emulsion to obtain a novel antibacterial composite material (PSA/Ag@SiO 2 ). The dispersion of composite latexes was improved by the formation of Si-O-Si covalent bonds , and the migration of AgNPs on the surface of composite films enhanced their antimicrobial activity. Analysis of UV-Vis absorption spectra , TEM images, XPS and XRD data confirmed the core-shell structure of Ag@SiO 2 and the successful coating of AgNPs by SiO 2 . TEM micrographs showed that Ag@SiO 2 core-shell nanoparticles were uniformly dispersed in the composite latexes, with an average particle size of 198 nm for PSA/Ag@SiO 2 composite latexes, larger than that of PSA latexes (162 nm). FTIR spectra also indicated the presence of Si-O-Si covalent bonds resulting from the sol-gel reaction between MPS functionalized PSA with Ag@SiO 2 . XPS and WCA characterization revealed the disruption of the core-shell structure of Ag@SiO 2, leading to the migration of AgNPs to the air-film interface. The results of antibacterial activity demonstrated that PSA/Ag@SiO 2 composite films displayed antibacterial activity against both E. coli and S. aureus , and the former displayer a slightly better antibacterial activity than the latter. The water-based acrylic polymer coatings with antibacterial properties explored in current work have various applications in wood paints, varnishes, metal protection, decorative systems and other related fields.
研究领域:
材料科学
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纳米技术
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高分子科学
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化学工程
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生物技术
✓ 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）