INORGANIC CHEMISTRY
·
2024
·
IF 4.3
Ziyan Lv,Rukang Li
A new noncentrosymmetric crystal Na12(NbO)3(PO4)7 was successfully synthesized in the niobium phosphate system. Its structure characterizes isolated and highly distorted NbO6 octahedra joining with isolated PO4 groups to form a unit of a (Nb6P6O12) hexagonal star by sharing O atoms. In (Nb6P6O12) hexagonal stars, all Nb and P atoms are in a hexagonal star-like arrangement and all Na atoms are also in a hexagonal star-like arrangement, except for Na(3) and Na(10) atoms. Notably, it exhibits a strong phase-matched second harmonic response: 3 × KDP, which is rare in known niobium phosphate systems. Meanwhile, it also has a wide optically transparent window (0.29–4.44 μm) and a high laser-induced damage threshold (3.5 GW/cm2). More importantly, Na12(NbO)3(PO4)7 is a congruent melting compound that has the potential to be grown into large-sized single crystals by the Czochralski method. These excellent properties make it a promising candidate as a mid-infrared nonlinear optical crystal.
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CERAMICS INTERNATIONAL
·
2018
·
IF 3.057
Hainan Bai,Jiulin Hu,Xiaoguang Li,Yusen Duan,Feng Shao,Takahiro Kozawa,Makio Naito,Jingxian Zhang
Concerning the safety problems of conventional Li-ion batteries with liquid electrolytes, it is crucial to develop reliable solid-state electrolytes with high ionic conductivity . Li 1+x Al x Ti 2−x (PO 4 ) 3 (LATP, x = 0.3) is regarded as one of the most promising solid electrolytes due to its high ionic conductivity and excellent chemical stability to humidity. Herein, a new strategy is proposed for improving the sintering behavior and enhancing the ionic conductivity of LATP by using LiBO 2 as the sintering aid via liquid phase sintering . The as-prepared sample LATP with homogeneous microstructure and high relative density of 97.1% was successfully synthesized, yielding high total ionic conductivity of 3.5 × 10 −4 S cm −1 and low activation energy of 0.39 eV at room temperature. It was found that the addition of LiBO 2 could effectively enhance the densification and increase the ionic conductivity of LATP electrolyte, proving an effective way to synthesis LATP ceramics by a simple and reliable route.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 9
·7692-7700
·
IF 2.324
Hu Zhen,Guo Haiyong,Zhao Li,Wu Yadan,Wang Shimin,Wan Li
A double-layer composite film (DLCF) that consists of upconversion composite La(OH) 3 :Er 3+ /Yb 3+ +P25 (UC + P25) as underlayer and large TiO 2 spheres (LS-TiO 2 ) as overlayer is designed as the photoelectrode of dye-sensitized solar cells (DSSCs). The upconversion luminescent material La(OH) 3 :Er 3+ /Yb 3+ can convert near-infrared region to visible light to improve the light absorption, and LS-TiO 2 has been used as light-scattering layer to increase the optical length in the film and enhance light harvesting. The DLCF with lower absorbed dye achieved the highest conversion efficiency due to the synergistic effect of the upconversion luminescent layer and the light-scattering layer, and with an optimum mixing ratio, a conversion efficiency of 9.24% is attained, which is a significant improvement of 68.3% compared with the pure P25 film photoelectrode.
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ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xudong Wang,Jiepeng Chen,Yun Huang,Jiapin Liu,Lei Fu,Li Liu,Wenping Zeng,Jie Xiao,Xiaoyan Zhang,Xing Li,Mingshan Wang,Yuanhua Lin,Haijun Cao
Na4MnV(PO4)3 (NMVP) has gained attention for its high redox potential, good cycling stability, and competitive price but suffers from poor intrinsic electronic conductivity and Jahn–Teller effect from Mn3+. In this work, cation/anion doping strategy was used for Aspergillus niger-bioderived carbon-coated NMVP (NMVP/AN) to improve the structural stability and electrochemical performance, where Al3+ doping inhibited the dissolution of Mn and enhanced the Mn3+/Mn2+ redox pair activity; besides, F– doping not only weakens the Na2–O bond but also endows the hierarchical and porous structure of NMVP/AN, which led to a more rapid and fluid transfer of Na+. The elaborately designed Na3.9Mn0.9Al0.1V(PO4)3/AN (NMAVP/AN) exhibits 105.9 mA h g–1 at 0.5 C, and the as-prepared Na3.1MnV(PO3.7F0.3)3/AN (NMVPF/AN) delivers 104.1 mA h g–1 at 5 C. Further demonstration of the hard carbon//NMAVP/AN full cell manifests the good potential of Al3+-doped NMVP/AN for practical applications (100.6 mA h g–1 at 1 C). These findings open up the possibility of unlocking the high-performance Na superionic conductor (NASICON).
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Food Bioscience
·
2024
·
IF 4.8
Jun Lv,Chang Liu,Pan-Pan Tang,Jun-Xiang Liu,Rana Muhammad Aadil,Jun-Hu Cheng,Shahzad Hussain,Xiu-Bin Liu,Zhi-Wei Liu
The application of cold plasma (CP) treatment was investigated for its effectiveness in promoting the covalent grafting of β-lactoglobulin (β-LG) and epigallo-catechin 3 -gallate (EGCG), as well as improving the antioxidant capacity of β-LG and eliminating its antigenicity. The results indicated that CP treatment significantly enhanced the covalent grafting of β-LG and EGCG. The maximum EGCG content in β-LG-EGCG complexes reached 47.08 ± 0.58 mg/g (with 45 s treatment), as confirmed by SDS-PAGE analysis and FTIR spectroscopy. Additionally, LC-MS/MS identifies two binding sites (T76 and K77) of EGCG in the β-LG-EGCG conjugates. After 60 s treatments, there was a significant reduction in the IgG binding capacity of β-LG-EGCG conjugates (29.97 ± 0.05%). Further analysis suggested that the change in the conformational epitopes of β-LG, due to the conjugating with EGCG, was likely the main factor responsible for the reduced binding Immunoglobulin G (IgG) capacity. The maximum antioxidant activities of β-LG-EGCG conjugates were found to be 974.14 ± 1.94 μmol TE g −1 for ABTS and 748.48 ± 9.66 μmol TE g −1 for DPPH). These values represent an eightfold increase in DPPH activity and a twofold increase in ABTS compared to the control sample. This study demonstrated that the CP treatment is highly effective technology for facilitating the covalent grafting of polyphenols to proteins, thereby enhancing their antioxidant properties and eliminate their antigenicity.
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Metals
·
2024
·Vol. 14
·期 10
·1142
·
IF 2.6
Jiabao Li,Yang Cai,Jianling Huang,Shiqian Zhao,Deliang Cheng
Mg-based alloy anodes suffer from severe corrosion in alkaline electrolytes, which substantially impedes their cycle life and thereby limits their suitability as anode materials for nickel–metal hydride (Ni-MH) batteries. This work modifies the conventional 6 M KOH electrolyte by adding 0.1 M Al2(SO4)3·18H2O. The electrochemical hydrogen storage properties of Mg0.45Ti0.05Ni0.50alloy in this electrolyte and its microstructural evolution during cycling are studied. In the 6 M KOH + 0.1 M Al2(SO4)3·18H2O electrolyte, a protective layer consisting of Mg2Al(OH)7is formed on the surface of the Mg0.45Ti0.05Ni0.50alloy anode during charge/discharge cycling instead of Mg(OH)2, effectively preventing further corrosion and improving its cycle life. The Mg0.45Ti0.05Ni0.50alloy anode delivers a maximum discharge capacity of 479.0 mAh g−1and maintains 318.4 mAh g−1after 30 cycles in the 6 M KOH + 0.1 M Al2(SO4)3·18H2O electrolyte, which is significantly superior to that achieved in the 6 M KOH electrolyte (471.1 mAh g−1and 201.8 mAh g−1, respectively). This work provides a new strategy for improving the cycle stability of Mg-based alloy anodes.
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Food Bioscience
·
2024
·
IF 4.8
Xiaoqiang Zou,Mudassar Hussain,Imad Khan,Yanxi Wang,Bangzhi Jiang,Lei Zheng,Yuechao Pan,Jijie Hu,Azqa Ashraf
Medium- and long-chain structured lipids (MLSLs) rich in docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) were synthesized by acidolysis of fish oil (Omax 1812, a mixture of sardine and anchovy oils) with caprylic acid (CA) using a lipase bio-imprinted with fatty acids as a catalyst. A bio-imprinted lipase for the acidolysis reaction was first prepared under optimal conditions, and its activity was 1.43 times higher than that of the non-bioimprinted. The bio-imprinted lipase was used as a catalyst to produce such MLSLs, and the reaction conditions were optimized. Under the optimal conditions, equilibrium was achieved in 8 h, and the total and the sn -1, 3 CA contents in the obtained product were 28.72% and 42.26%. Additionally, the total and the sn -2 DHA contents were 14.23% and 21.10%, respectively, and the total and the sn -2 EPA contents were 16.43% and 10.14%, respectively. These obtained MLSLs, rich in sn -1, 3 CA, and sn -2 DHA, EPA can deliver significant health benefits.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2024
·
IF 5.7
Yaqiong Liu,Fang Wu,Ming Zhang,Yutong Jin,Xinlei Yuan,Yanling Hao,Lishui Chen,Bing Fang
Human milk oligosaccharides could prevent pathogenic bacterial infections in neonates; however, direct in vivo anti-infection evidence was still lacking. Here, we systematically evaluated the effects of 2′-fucosyllactose (2′-FL) and 3′-sialyllactose (3′-SL) on the structural development and functional maturation in neonates and their defense against enteroaggregative Escherichia coli infection. It was found that supplementation with 2′-FL and 3′-SL improved the resistance of weaned mice to enteroaggregative E. coli. The mechanism related to the promotion of 2′-FL and 3′-SL in the maturation of intestinal mucosal immunity by promoting stem cell differentiation, mucus layer integrity, and tight junction formation. 2′-FL and 3′-SL significantly increased the ratio of Th1 and Treg cells in the lamina propria, contents of short-chain fatty acids, as well as the serum content of IgA. This study lays a theoretical basis for the application of 2′-FL and 3′-SL in infant formula, as well as the development of intestinal health products.
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APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Jialin Zhao,Ting Wu,Youlin Xiong,Wei Zhang,Zian Pan,Shuangfei Cai,Rong Yang
Electrochemical biosensors have shown promise in bioanalysis and diagnosis. However, they suffer from the accumulation and adhesion of biomolecules in biofluids on sensing surfaces, while the hiring of potential antifouling is limited by the cost and complexity of the construction methods. Here, an economical three-dimensional (3D) conductive antifouling coating was prepared. This coating was composed of bovine serum albumin (BSA) crosslinked glutaraldehyde (GA) and copper-gold nanowires (CuAu NWs) with excellent electrical conductivity. Furthermore, a dual-targeted aptamer (D-Apt), with a “3-in-1″ structure of two specific binding sequences and a DNA linker, was designed to specifically recognize BSA and the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike (S) protein, affording low nanomolar binding affinity. Importantly, the introduction of the D-Apt greatly simplified the functionalization procedure on the electrode surface and the immobilization of the biorecognition element. Then, a simple electrochemical biosensor based on the CuAu/BSA/GA and D-Apt was constructed for the detection of S protein. This sensor exhibited merits of cost-effectiveness, sensitivity and practicality for detection of S protein. The work could provide a facile avenue to construct electrochemical biosensors with low-cost antifouling for the accurate diagnosis of epidemic antigenic disease markers.
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INDUSTRIAL CROPS AND PRODUCTS
·
2024
·
IF 5.6
Ling Liu,Hong Peng,Ying Shen,Limin Shen,Guiming Fu,Yin Wan,Zhaodi Xu
In-depth understanding the influence of ionic liquid structure on the selective dissolution of the main biopolymers from plant cell walls is necessary for designing ionic liquids that could efficiently pretreat and fractionate lignocellulosic biomass. The current study aimed to investigate the effect of electronegativity of anions of 1-butyl-3-methylimidazolium halide based ionic liquids BmimCl, BmimBr, and BmimI on dissolving bamboo slices. The surface of pretreated bamboo slices and the regenerated carbohydrate-rich fractions were characterized carefully. The results revealed that the ability to damage bamboo cell walls and dissolve bamboo slices followed the order of BmimCl>BmimBr>BmimI, which was consistent with the electronegativity of halogen anions (Cl - >Br - >I - ). The dissolving selectivity for lignin from bamboo cell walls was in the order of BmimBr>BmimI>BmimCl. The ionic liquids performed a greater dissolving selectivity for lignin than carbohydrates (cellulose and hemicellulose). The permeating rate of ionic liquid molecules into bamboo cell walls increased with the enhancement of electronegativity of halogen anions. The regenerated carbohydrate-rich fractions were rich in hemicellulose and cellulose with an amount of lignin. Both temperature and time had also great effect on the dissolution of bamboo slices. On the whole, the electronegativity of halogen anions had a profound impact on the deconstruction of bamboo cell walls and dissolution of bamboo. This study provided important theoretical assistance for designing ionic liquids that could more efficiently pretreat and fractionate lignocellulosic biomass.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2015
·
IF 4.097
Suozhu Wu,Tiyun Han,Junjie Guo,Yuansheng Cheng
Here we develop a novel approach for electrochemical detection of fluoride by poly(3-aminophenylboronic acid)-reduced graphene oxide (PAPBA-RGO) nanocomposite modified electrode. In this approach, the proposed electrode was fabricated by a two-step procedure, including direct electrodeposition of graphene oxide and electrochemical polymerization of 3-aminophenylboronic acid. Electrochemical detection of fluoride by PAPBA-RGO nanocomposite modified electrode was performed based on the variation of reduction peak current of ferricyanide, which was induced by the binding between boronic acid groups of PAPBA and fluoride. The obtained results displayed that reduction peak current of ferricyanide decreased with increasing concentration of fluoride, and two good linear relationships between the reduction peak current and the logarithm of fluoride concentration were obtained in the concentration range of 1 × 10 −10 to 1 × 10 −5 M and of 1 × 10 −5 to 1 × 10 −1 M, respectively. The limit of detection of the proposed approach was 9 × 10 −11 M. The interference of other competing ions including Cl − , Br − , I − , NO 3 − , ClO 4 − , Ac − or SO 4 2− was negligible. Furthermore, the PAPBA-RGO nanocomposite modified electrode was employed for detection of fluoride in water samples.
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FOOD CHEMISTRY
·
2024
·
IF 8.5
Pengkai Xie,Yuxin Wu,Yee-Ying Lee,Yong Wang,Zhen Zhang
The major lipids and antioxidant activities of Asterias rolleston gonad lipids were evaluated systematically. Major lipids of A. Rolleston gonad lipids were triacylglycerols (TAGs) and phospholipids (PLs). Total lipids were composed of 15.62% of polyunsaturated fatty acids (PUFAs), and 40.81% of monounsaturated fatty acids (MUFAs). The most abundant PUFA were C20:5n-3 (EPA) (6.28%) and C22:6n-3 (DHA) (5.80%). Predominantly composed of phosphatidylcholine (PC) and phosphatidylethanolamine (PE), polar lipids were rich in PUFAs and could contain up to 34.59% EPA and DHA , and PE and PI (phosphatidylinositol) were also found to be the main carriers of EPA and ARA (arachidonic acid) in polar lipids. The MUFA and PUFA of Sn -2 in TAG are 39.72% and 30.37%, respectively. A total of 64 TAG species were identified, with Eo-P-M, Eo-Eo-M, and M-M-Eo being the main TAGs components. Moreover, A. rollestoni gonad lipids exhibited potent radical scavenging activities and reducing power in a dose-dependent manner.
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危险品化学品经营许可证（带存储）