JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
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2025
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IF 6.2
Zhen Wang,Yuan Cheng,Kewei Li,Mengen Hu,Hanwen Zhang,Xian Dang,Ming Li,Xinyang Li,Zhulin Huang,Yue Li,Xiaoye Hu
High quality ceramic powders are crucial for the performance of composite materials, yet preparing powders with good morphology and high crystallinity still faces enormous challenges. Herein we report a topological Archimedean polyhedron of (Zr 0.5 Hf 0.5 )B 2 nanoparticles were synthesized via a high pressure liquid-phase and coprecipitation co-assisted boro/carbothermal reduction method. A nonclassical crystallization model where both oriented attachment and screw dislocation growth mechanism occur simultaneously. The microstructural evolution during the growth process of borides indicates that the growth mechanism of the new layer on the surface of diborides is mainly explained by the layered structure and trapezoidal profile. The initial growth stage energy of each layer comes from interface defects and lattice mismatches during atomic diffusion processes. The directional attachment of clusters leads to the generation of a large number of dislocations in the system, resulting in the formation of polyhedral structures. Benefiting from the high crystallinity polyhedral morphology, the powder shows excellent oxidation resistance, i.e. , the thickness of ceramic oxide layer prepared by Archimedean polyhedron powders is 86.43 μm at 1400 °C for 3 h. This work holds significant importance for the development of new ceramic powders preparation methods and provides a novel approach for studying the performance improvement of ultra-high temperature ceramic materials.
研究领域:
材料科学
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陶瓷材料
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DOI
高影响因子
Current Nanoscience
·
2025
·Vol. 21
·期 1
·92-98
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IF 1.5
Qiang Wan,Rong Li,Meiping Ren,Gang Ke
Background In the paper, Boletus Brucella was used as carbon source material to prepare carbon dots (CDs) by one-step hydrothermal method. The CDs had high quantum yield and high photostability. Methods A range of characterization studies were conducted on CDs, and the results showed that the average particle size of CDs was 5 nm, emitting blue fluorescence. The optimal excitation wavelength was 337 nm, and the emission wavelength was 440 nm. Results Based on the static quenching, the fluorescence of CDs could be effectively quenched by VB2. Therefore, a highly sensitive and selective fluorescent probe for detecting VB2 was constructed. The CDs were successfully used to detect tablets, human blood, and urine. Conclusion The recovery rate of VB2 was 97.55~99.45%, and the relative standard deviation was 1.29~3.76 (n=3).
研究领域:
生物化学
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分析化学
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材料科学
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DOI
高影响因子
FOOD AND CHEMICAL TOXICOLOGY
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2018
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IF 3.977
Ying Xiao,Jialin Dong,Zhiting Yin,Qiguo Wu,Yiming Zhou,Xiaoli Zhou
To elucidate the possible mechanisms for the preventive effect of procyanidin B2 on aging, a combined analysis of metabolic profile and gut microbiome was carried out in the present study. The mimetic aged mice induced by d -galactose injection (500 mg/kg, sc daily), and the preventive group was fed with the diet plus 0.2% procyanidin B2. After 7 weeks of treatment, the spatial memory was assayed using the Morris water maze test. Procyanidin B2 significantly ameliorated the impaired memory and antioxidant abilities induced by d -galactose. Furthermore, metabolomics analysis of plasma based on LC/Q-TOF-MS demonstrated that phosphatidyl cholines , oleic acid , linoleic acid , carnitine , pantothenic acid , and taurocholic acid were significantly increased in the mice treated with procyanidin B2, and pyruvic acid , hydroxybutyric acid , hippuric acid , and cholic acid were decreased significantly. Together, gut microbiome analysis using Illumina sequencing showed that there were significant differences in the Firmicutes / Bacteroidetes ratio and abundance of Roseburia , Lachnospiraceae , and Bifidobacterium between the aging and supplemental procyanidin B2 groups. In summary, procyanidin B2 possessed potential prevention of the cognitive and oxidative impairment via the metabolic pathway regulation related to citrate cycle, fatty acid, and bile acid in the aged mice, accompanied by remodeling the gut flora.
研究领域:
生物化学
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分子生物学
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老年医学
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营养学
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产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2023
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IF 4.4
Jun Hu,Chaohui Zhan,Qiu Wang,Hongyang Shi,Yong He,Aiguo Ouyang
Food such as cereal crops, oil crops and dairy products are very easy to produce highly toxic and carcinogenic aflatoxins during inappropriate storage. Therefore, it is of great significance to achieve rapid, non-destructive and highly sensitive detection of aflatoxin. A terahertz metamaterial sensor with “X” compound double-peak structure is designed based on electromagnetic theory to realize highly sensitive detection of aflatoxin B2 solution. It is found that the amplitude of the transmission peak of the terahertz transmission spectrum of aflatoxin B2 (AFB2) solution around 1.2 THz and 2.0 THz gradually decreased with the increase of the concentration of aflatoxin B2 solution, and the frequency of the transmission peak gradually shifted to high frequency with the increase of the concentration of aflatoxin B2 solution, hence a full concentration model was established. And a strategy of first classifying concentration intervals and then building a grouped quantitative model was proposed. The Limit of Detection ( LOD ) of the interval sub-model of low and medium concentration of aflatoxin B2 solution has been greatly improved with the LOD of the optimal grouping model was 7.28 × 10 −11 mg/ml, 4.19 × 10 −9 mg/ml and 1.22 × 10 −7 mg/ml, respectively. This research verifies the feasibility of terahertz metamaterial sensor based on “X” composite double-peak structure combined with THz-TDS technology for highly sensitive detection of aflatoxin B2 solution. And it provides a new rapid, non-destructive and highly sensitive detection of aflatoxin in food.
研究领域:
食品安全
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生物医学工程
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光谱学
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DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
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2025
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IF 5.6
Cheng Su,Bingzhu Wang,Huan Guo,Jixiang Dai,Jianjun Sha
In view of the high sintering temperature and difficulty in densification of the ultra-high temperature ceramics(UHTCs), a novel reactive hot-pressing process was designed to achieve the low temperature densification of high strength (Zr,Ta)B 2 -SiC ceramics. It was found that the mechanical properties were closely associated with the microstructure, being dependent on the sintering temperature. The microstructure characterization revealed that the main phases of ceramic were incompletely solid soluted borides and SiC at the sintering temperature of 1600 °C; while at 1700 °C, the boride ceramics were completely solid soluted (Zr,Ta)B 2 and formed an interlocking structure with SiC. The evaluation of mechanical properties indicated that the flexural strength of the ceramics increased from 470.2 MPa to 736.7 MPa when the sintering temperature increased from 1600 °C to 1800 °C. Correspondingly, the fracture toughness increased from 3.54 MPa·m 1/2 to 4.10 MPa·m 1/2 . The improvement of mechanical properties were mainly attributed to the interlocking structure formed by the solid solution (Zr,Ta)B 2 and SiC, which caused the crack propagation path becoming tortuous along the interface of different phases.
研究领域:
材料科学
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陶瓷工程
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DOI
高影响因子
Frontiers in Pharmacology
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2017
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IF 4.4
Xiao Ying,Hu Zhongzhi,Yin Zhiting,Zhou Yiming,Liu Taiyi,Zhou Xiaoli,Chang Dawei
The metabolite profiles and distributions of procyanidin B2 were qualitatively described using UPLC-DAD-ESI-IT-TOF-MSn without help of reference standards, and a possible metabolic pathway was proposed in the present study. Summarily, 53 metabolites (24 new metabolites) were detected as metabolites of procyanidin B2, and 45 of them were tentatively identified. Twenty seven metabolites were assigned as similar metabolites of (−)-epicatechin by scission of the flavanol interflavanic bond C4–C8, including 16 aromatic metabolites, 5 conjugated metabolites, 3 ring-cleavage metabolites, and 2 phenylvalerolactone metabolites. Additionally, 14 metabolites were conjugates of free procyanidin B2, comprising 9 methylation metabolites, 8 sulfation metabolites, 5 hydration metabolites, 2 hydroxylation metabolites, 1 hydrogenation metabolites, and 1 glucuronidation metabolites. The results of metabolite distributions in organs indicated that the conjugated reaction of free procyanidin B2 mainly occurred in liver and diversified metabolites forms were observed in small intestine. The metabolic components of procyanidin B2 identified in mice provided useful information for further study of the bioactivity and mechanism of its action.
研究领域:
药理学
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分析化学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2021
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IF 5.279
Fangfang Du,Zhe Cheng,Guanghui Wang,Minglu Li,Wenjing Lu,Shaomin Shuang,Chuan Dong
In this work, we synthesized carbon nanodots (CNDs) by a one-pot hydrothermal method to carbonize precursors of dry carnation petals and polyethylenimine. The obtained CNDs possess favorable photostability, good biocompatibility, and excellent water solubility, which can serve as a dual-responsive nanosensor for the determination of vitamin B2 (VB2) and pH. A unique ratiometric fluorescence resonance energy transfer probe was developed through a strong interaction between VB2 and surface moieties of CNDs. CNDs emitted at 470 nm; however, in the presence of VB2, an enhanced emission peak was clearly observed at 532 nm. The value of I532/I470 exhibits a stable response to the VB2 concentration from 0.35 to 35.9 μM with a detection limit of 37.2 nM, which has been used for VB2 detection in food and medicine samples and ratiometric imaging of VB2 in living cells with satisfying performance. In addition, the proposed CNDs also displayed pH-sensitive behavior and can be a turn-off fluorescent sensor to monitor pH. The fluorescent intensity at 470 nm is a good linear response against pH values from 3.6 to 8, affording the capability as a single-emissive nanoprobe for intracellular pH sensing.
研究领域:
分析化学
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生物医学
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材料科学
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DOI
高影响因子
CERAMICS INTERNATIONAL
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2024
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IF 5.1
Yang Liu,Jia-Ji Liang,Wei-Ming Guo,Chao Chang,Xiao-Ming Duan,De-Chang Jia,Hua-Tay Lin
High-temperature thermal stability plays a crucial role in the structural application of pressureless liquid-phase sintered SiC (PLS-SiC) ceramics. In this paper, a PLS-SiC ceramic processed with CeO 2 –Al 2 O 3 as sintering additives with excellent high-temperature thermal stability was achieved by incorporating (Hf, Zr, Ta, Nb, Ti)B 2 (HEB) particles. Results showed that PLS-SiC ceramics with HEB-free underwent a structural change from dense to porous microstructure after annealing at 1800 °C/1 h. Conversely, PLS-SiC ceramics with the addition of 10 vol% HEB exhibited excellent thermal stability, as evidenced by the retention of their dense microstructure after exposure to annealing at 1800 °C/1 h. The possible primary reasons for this significantly different response to the thermal stability could be probably attributed to fact that HEB reacted with CeAlO 3 and SiC to form solid-phase products, subsequently inhibiting the formation of gas-phase products after decomposition of CeAlO 3 alone in a high-temperature vacuum environment. In addition, the formation of a compact protective outer layer containing Hf–Ta containing diboride in PLS-SiC ceramics during the annealing process could effectively hinder the volatilization of volatile substances at a high temperature.
研究领域:
材料科学
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陶瓷工程
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
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2022
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IF 9.231
Yuting Fan,Qingyu He,Chao Gan,Zhen Wen,Jiang Yi
The interactions between bovine α-lactalbumin and procyanidin B2 were fully investigated by spectroscopic methods and molecular docking. This study hypothesized that ALA could spontaneously interact with procyanidin B2 to form protein-based complex delivery carrier. Far UV CD and FTIR data demonstrated ALA’s secondary structures were altered and intrinsic fluorescence quenching suggested ALA conformation was changed with procyanidin B2. Calorimetric technique illustrated ALA-procyanidin B2 complexation was a spontaneous and exothermic process with the number of binding site (n, 3.53) and the binding constant (K b , 2.16 × 10 4 M −1 ). A stable nano-delivery system with ALA can be formed for encapsulating, stabilizing and delivering procyanidin B2. Molecular docking study further elucidated that hydrogen bonds dominated procyanidin B2 binding to ALA in a hydrophobic pocket. This study shows great potential in using ALA as protein-based nanocarriers for oral delivery of hydrophilic nutraceuticals, because procyanidin B2-loaded ALA complex delivery systems can be spontaneously formed.
研究领域:
食品科学
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生物化学
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营养学
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产品关联
DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2021
·Vol. 188
·期 1
·1-12
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IF 5.833
Zhang Haipin,Song Huijia,Tian Xuemeng,Wang Yue,Hao Yi,Wang Wenting,Gao Ruixia,Yang Wan,Ke YuShen,Tang Yuhai
A synergistic imprinting strategy of covalent and non-covalent interactions is proposed to prepare magnetic molecularly imprinted polymers (DI-MMIPs) for highly selective separation of procyanidin B2 (PC) from grape seed samples. Dopamine and 3-amino-phenylboronic acid as cooperative functional monomers endow the imprinted sites with synergistic tailoring. Benefiting from the synergistic effect, the DI-MMIPs exhibit enhanced imprinting performance with high adsorption capacity (27.71 mg g −1 ), fast kinetic equilibrium time (within 30 min), outstanding selectivity (IF = 5.8, SC > 3.2), and satisfactory regeneration ability. In addition, the DI-MMIPs possess good magnetism, uniform morphology with typical core-shell structure, and stable crystallization. Furthermore, the established DI-MMIPs coupled with HPLC-UV (~ 280 nm) method has a wide linearity range of 0.05–200 μg mL −1 with correlation coefficient of 0.9997, high recoveries (> 93.1%) with RSDs from 2.9 to 5.5%, and low LOD (0.0008 μg mL −1 ). Consequently, this work provides an effective and easily tailored way to fabricate magnetic imprinted nanomaterials with both rapid recognition rate and high selectivity and thus holds great promise to realize the extraction and detection of PC from real samples. Graphical abstract
研究领域:
分析化学
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纳米材料科学
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食品科学
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产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2022
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IF 5.532
Yao Yang,Jianqiang Bi,Kangning Sun,Linjing Qiao,Yi Liu,Yonghan Li,Hongyi Wang,Yanjie Liang,Mengmeng Shang
The composition and synthesis approach of high entropy ceramics have significant influences on their microstructures and mechanical properties. A new (Hf 0.2 Zr 0.2 Ta 0.2 V 0.2 Nb 0.2 )B 2 high entropy diboride ceramic with excellent mechanical properties was successfully prepared by spark plasma sintering (SPS) at a relatively “low temperature” (1800 °C) in this work. The effects of two mixing strategies, grinding and ball milling, on the solid solubility of the calcined powders were studied. Furthermore, the effects of these two mixing strategies on the phase and morphology of the calcined powders and the mechanical properties of the SPS sintered ceramics were analyzed. Experimental results indicated that, compared with a single solid solution phase within the high entropy boride powders obtained by ball milling, incomplete solid-solution presented in the high entropy boride powders obtained using grinding treatment. It promoted the solid-state diffusion and in-situ reaction of the diborides in the ceramics during the sintering process, thereby improving the densification and the hardness of the high entropy diboride ceramics. By grinding treatment, (Hf 0.2 Zr 0.2 Ta 0.2 V 0.2 Nb 0.2 )B 2 high entropy ceramic with a relative density of 94% and a hardness of up to 25.34 ± 1.5 GPa at an indentation load of 9.8 N was obtained at 1800 °C. This work not only expanded the family of high-entropy diboride ceramics but also proved the advantage of grinding treatment in preparation of high entropy diboride ceramics.
研究领域:
材料科学
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陶瓷
·
高熵合金
✓ 已验证
DOI
高影响因子
LWT-FOOD SCIENCE AND TECHNOLOGY
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2016
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IF 2.711
Guocheng Huang,Weixi Cai,Baojun Xu
There is a lack of information on the various components in germinated soybeans. Therefore, this study aimed to further investigate the differences between three-day -germinated and raw (non-germinated) yellow and black soybeans. The results showed that germination increased the contents of beta-carotene and vitamin B 2 significantly. The free amino acids in raw soybeans were not detected but determined in germinated soybeans, which illustrated that the total free amino acids in germinated soybeans were higher than in raw soybeans. Meanwhile, GABA was 10-fold increased in germinated soybeans. The increase of aglycones of isoflavones was significantly high that reached to over 700% in both soybeans. The total saponin content in germinated yellow soybeans was increased two times whereas there was a slight decline in germinated black soybeans. The anthocyanin content was found to be declined in germinated black soybeans. The current study indicates that three-day- germinated soybeans yield higher nutritional values than raw soybeans, suggesting that the germinated soybeans are a good source of various nutrients and other biologically active compounds.
研究领域:
营养学
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食品科学
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植物生理学
✓ 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）