PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS
·
2025
·
IF 3.3
Wu Mengyao,Wang Haiou,Wang Wenxuan,Ren Xiaoyu,Zhang Juming
Hydroponic experiments and computational simulations were conducted to investigate the changes in the gene expression, structure, and binding mode of the rice transporter protein OsTIL to OPEs by the presence of Cd 2+ and Zn 2+ . OPEs and Zn 2+ were observed to promote seedling growth and OPEs alleviated the suppressive effect of Cd 2+ on seedlings. Usually, Cd 2+ and Zn 2+ inhibited the accumulations of OPEs in plants accompanied by the decrease of RCF (root concentration factor) and TF (transport coefficient). In particular, Zn 2+ promoted TDCPP accumulation only in roots accompanied by the increase of RCF and the decrease of TF. Furthermore, Cd 2+ and Zn 2+ affected the gene expressions of OPEs transporter-OsTIL response in the accumulation of OPEs in both single and compound pollution. After molecular dynamics simulation analysis, RMSD of the protein backbone, binding pocket, and ligand only in TDCPP-OsTIL complex also were significantly affected by two metal ions. Furthermore, two metal ions can press the interaction of OPEs and OsTIL by reducing the stability of protein structure and the numbers of HB (hydrogen bonds) and enlarging the pocket. However, Zn 2+ extra supports an enlarged entrance for TDCPP, which could facilitate the entry of the coordination complex of Zn 2+ with TDCPP into the pocket and improve TDCPP capacity of OsTIL.
研究领域:
植物学
·
环境科学
·
分子生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS RESEARCH BULLETIN
·
2023
·
IF 5.4
Dongfang Lv,Jingchuang Han,Zhaowu Li,Jie Xiong,Pingfan Du,Lixin Song
Inorganic hole transport materials (HTMs) play an important role for the stability and efficiency of planar perovskite solar cells (PSCs). Among the numerous inorganic HTMs, NiCo 2 O 4 with its excellent performance is the emerging candidate for hole transport layers (HTLs) and is attracting increasing attention. However, the low electrical conductivity and optical transmittance of NiCo 2 O 4 severely limit the device performance. Herein, the Zn 2+ was used to dope NiCo 2 O 4 to improve the electrical conductivity and optical transmittance of NiCo 2 O 4 . And the effects of the concentration of Zn 2+ on the morphology, structure and properties of NiCo 2 O 4 were investigated. The morphology and transparency of Zn x Ni 1-x Co 2 O 4 would not be affected when the concentration of Zn 2+ is below 0.1, but when it is up to 0.15 and 0.2, the morphology of NiCo 2 O 4 clustered together or showed a diamond-shaped block, and the optical transmittance also decreased significantly. Meanwhile, with the increase of doping amount, the conductivity and hole mobility are gradually increased. As a result, the optimal concentration of Zn 2+ is 0.1. Besides, the Zn 0.1 Ni 0.9 Co 2 O 4 possessed a significant improvement in hole extraction and better band alignment compared to the NiCo 2 O 4. And hence, the power conversion efficiency (PCE) of PSCs fabricated in open air is up to 13.41% by using Zn 0.1 Ni 0.9 Co 2 O 4 . This work develops a potential strategy for developing highly efficient and stable PSCs, opens up a new horizon for the development of inorganic HTMs.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2013
·Vol. 15
·期 22
·4473-4482
·
IF 3.879
Guohai Xu,Jianyi Lv,Peng Guo,Zhonggao Zhou,Ziyi Du,Yongrong Xie
Insight into the control of interpenetrating coordination networks has been strategized by using linear dicarboxylates with different lengths. In this work, we rely on two roles of triethanolamine (H-bonding donations and cooperative stabilization of Zn2 unit) to target the syntheses of two unique interpenetrating coordination polymers. The two representative compounds, [Zn4(teaH2)2(bdc)3]·2(MeOH) (1; bdc2− = 1,4-benzenedicarboxylate and teaH2− = triethanolamine anion) and [Zn2(teaH2)(bpdc)1.5] (2; bpdc2− = biphenyl-4,4′-dicarboxylate), contain a well-defined Zn2 unit as three-connected uninode but are assembled into two different topology nets. Compound 1 represents the first example of a two-fold interpenetrating 2D → 3D 4·65-crb supramolecular architecture constructed from a two-fold interpenetrating 4·82-fes subnet, whereas compound 2 shows an unreported self-catenated 3D → 3D 615 supramolecular network that can be made by H-bond cross-linking of an eight-fold 103-ths subnet. The photoluminescent properties of the two compounds have also been investigated.
研究领域:
化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 68
·63874-63879
·
IF 3.289
Liqiang Yan,Tingting Qing,Renjie Li,Zhongwei Wang,Zhengjian Qi
A series of schiff base derivatives with salicylaldehyde moieties were designed and synthesized. These materials exhibit typical AIE properties and high fluorescence quantum yields in an aggregated state based on the excited-state intramolecular proton transfer (ESIPT) mechanism. Then, the effect of substituted group types and positions on the fluorescence of these novel compounds was investigated through fluorescence spectra analysis and theoretical calculations. And it was found that the salicylaldehyde derivatives can be used as potential pH and Zn2+ sensors.
研究领域:
化学
·
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
Advanced Composites and Hybrid Materials
·
2022
·Vol. 5
·期 3
·2078-2091
·
IF 11.806
Luo Hua,Su Yifan,Wang Xuanlun,Helal Mohamed H.,Ibrahim Mohamed M.,Huang Mina,El-Bahy Salah M.,Jiang Qinglong
Surlyn-Zn 2+ and zinc stearate have been used to synergistic modify ethylene–acrylic acid co-polymer (EAA), and the EAA/Surlyn-Zn 2+ /zinc stearate blend was prepared by blending and extrusion. The morphological and physical properties of self-made ionic inter-layer membranes were studied by differential scanning calorimetry, thermogravimetric analysis, rotating rheometer, and scanning electron microscopy. The experimental results show that the combination of Surlyn-Zn 2+ and zinc stearate significantly improves the mechanical properties, crystallinity, thermal stability, and rheological properties of the self-made ionic interlayer. The scanning electron microscope results indicate that the phases have been improved. The light transmittance, yield strength, and bonding strength of safety glass are improved significantly by using a ternary blend system as an interlayer film with the ratio 90/10/0.6 for EAA/Surlyn-Zn 2+ /zinc stearate. Meanwhile, the light transmittance for the safety glass reached 80.58% and the yield strength reached 73.1 MPa. Furthermore, no degumming can be seen in the glass broke during the bond strength test. Graphical abstract
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Lijuan Chen,Yaoyong Dong,Mengwei Han,Ting Song,Xuejun Zheng,Wenyuan He,Bei Long,Xiongwei Wu,Yong Pei,Xianyou Wang
MnOOH is regarded as a product of manganese-based materials after H + insertion. There is rare study on the Zn 2+ /H + storage capability of MnOOH. Herein, MnOOH nanofibers are prepared through a one-step hydrothermal method and developed as a promising cathode. The introduction of S doping changes the crystal structure of MnOOH and is conducive to its electronic/ionic transport and structural stability, proven by density functional theory calculations and various characterizations. The reduced Zn 2+ diffusion barrier of S-doped MnOOH leads to its increased Zn 2+ storage capability in the test of rate capability, especially at large current density. The Zn 2+ /H + insertion-type mechanism of MnOOH is revealed by ex situ XRD, Raman, XPS, and SEM tests. Therefore, this optimized material delivers a high reversible capacity of 178 mAh g −1 at 0.1 A g −1 , a good rate capability of 50 mAh g −1 at 3.0 A g −1 , and a long cyclic life with 108 mAh g −1 at 0.5 A g −1 over 500 cycles. Moreover, the electrode still shows satisfactory rate capability and cyclic life even at the high mass loadings of 10 and 15 mg cm −2 . This work proves the Zn 2+ /H + storage capability of MnOOH and its potential as a high-performance cathode in aqueous zinc ion battery.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2013
·
IF 2.112
Yaohui Xu,Yang Zhou,Wenhui Ma,Shixing Wang,Shaoyuan Li
The Fe 3 O 4 nanoparticles [NPs] coated with silica nanoparticles were designed to produce magnetic core–shell Fe 3 O 4 @SiO 2 NPs, which were modified with rhodamine B derivatives and defined as Fe 3 O 4 @SiO 2 -Rho NPs. The obtained Fe 3 O 4 @SiO 2 -Rho NPs served as a fluorescent OFF-ON nanosensor was utilized to detect Zn 2+ selectively in acetonitrile medium. The Fe 3 O 4 @SiO 2 -Rho NPs exhibited selective “turn-on” type fluorescent enhancements and distinct color changes with Zn 2+ . The Fe 3 O 4 @SiO 2 -Rho NPs also showed a high capacity for removal of Zn 2+ at room temperature. The removal efficiency toward Zn 2+ was about 87.34%. In addition, the presence of magnetic Fe 3 O 4 particles as core in Fe 3 O 4 @SiO 2 -Rho NPs could facilitate the magnetic separation of the Fe 3 O 4 @SiO 2 -Rho-Zn 2+ from the solution.
研究领域:
分析化学
·
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
POLYMER
·
2020
·
IF 4.231
Yan-Chan Wei,Gui-Xiang Liu,Ling Zhang,Fuchun Zhao,Shuangquan Liao,Ming-Chao Luo
The properties of synthetic polyisoprene (PI) cannot rival that of NR , although synthetic PI can achieve similar molecular chain structure (for example molecular weight and molecule chain configuration) to that of NR. It is still a challenge to explore the reason why NR owns superior comprehensive properties. Here our group focuses on the problem why non-rubber components can accelerate crosslinking process from molecular level. From macroscopic perspective, we find that proteins change the crosslinking behaviors and decrease activation energy of crosslinking process. From microscopic perspective, the formation of coordination interaction between Zn 2+ and amide bonds of proteins is confirmed, which improves solubility of Zn 2+ in matrix and further contributes to crosslinking reaction. In this study, the formation of coordination interaction between proteins and Zn 2+ is considered as one of the reasons why NR owns excellent mechanical properties . This article also provides more insightful understanding toward the relationship among structure, components, and properties of NR.
研究领域:
材料科学
·
高分子化学
·
物理化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Bio Materials
·
2023
·
IF 4.7
Lianxu Chen,Yingxue Guo,Lu Chen,Kang Hu,Liming Ruan,Pengfei Li,Xuehong Cai,Bin Li,Qiyang Shou,Guohua Jiang
As more and more superbugs emerge, wounds are struggling to heal due to the inflammation that accompanies infection. Therefore, there is an urgent need to reduce the abuse of antibiotics and find nonantibiotic antimicrobial methods to counter infections to accelerate wound healing. In addition, common wound dressings struggle to cover irregular wounds, causing bacterial invasion or poor drug release, which reduces the wound healing rate. In this study, Chinese medicinal monomer paeoniflorin which can inhibit inflammation is loaded in mesoporous zinc oxide nanoparticles (mZnO), while Zn2+ released from mZnO degradation can kill bacteria and facilitate wound healing. The drug-loaded mZnO was encapsulated by a hydrogel formed from oxidized konjac glucomannan and carboxymethyl chitosan via rapid Schiff base reaction to obtain an injectable drug-releasing hydrogel wound dressing. The immediate-formation hydrogel allows the dressing to cover any wound shape. In vitro and in vivo studies have demonstrated that the dressing has good biocompatibility and superior antibacterial properties, which can promote wound healing and tissue regeneration by promoting angiogenesis and collagen production, providing a promising perspective for the further development of multifunctional wound dressings.
研究领域:
生物医学工程
·
药学
·
材料科学
·
组织工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MACROMOLECULAR BIOSCIENCE
·
2023
·Vol. 23
·期 11
·2300233
·
IF 4.6
Bing-Chiuan Shiu,Shihan Wulin,Qian-Yu Yuan,Ying Zhang,Zhicai Yu
In this study, lacquer is gathered from a lacquer tree and rotary evaporation is used to remove impurities to obtain urushiol. Next, 10 mL of anhydrous ethanol serves as the solvent for blending polyvinylpyrrolidone (PVP) at a specified content (0.7 g and 0.2–0.7 g urushiol) to form an electrospinning solution. Electrospinning is carried out with a voltage of 18 kV to prepare PVP/urushiol nanofibrous membranes. At a ratio of 7/4, the PVP/urushiol nanofibrous membranes are not eroded in 98% sulfuric acid and these membranes also demonstrate a 50–60% antibacterial effect against Staphylococcus aureus and Escherichia coli . Moreover, the antibacterial effect can be boosted to 98% with the incorporation of zinc ions. The results indicate that anhydrous ethanol can remove the sensitization of urushiol from PVP/urushiol membranes. Furthermore, animal test results indicate that when rats are in contact with PVP/urushiol anhydrous ethanol for 48 h, their skins are free from dark brown skin allergy. The presence of PVP eliminates the sensitization of urushiol, and the nanofibrous membranes demonstrate low toxicity. Hence, urushiol is the only natural material that enables PVP to withstand 98% sulfuric acid as well as acquire hydrolyzability, thereby qualify PVP as a medical material.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
化学
·
细菌学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF RARE EARTHS
·
2019
·
IF 2.846
Guofang Zhang,Yiming Li,Xin Zhao,Jianyi Xu,Yanghuan Zhang
Fe 3+ and Zn 2+ ions were doped into the lattice of CeO 2 via the hydrothermal method . The microstructure and spectra features were analyzed systemically. XRD results show that the solid solubility of Fe 3+ and Zn 2+ ions in Ce 1– x (Fe 0.5 Zn 0.5 ) x O 2 can be identified as x = 0.16. The cell volumes are decreased by increasing the doped content. The TEM graphs prove that the grain size of the sample is about 10 nm, and the EDS result indicates that the doped contents are in accordance with that of the theory concentrations. Meanwhile, the doping also causes the increasing concentrations of the defects and oxygen vacancies which are supported by the XPS , Raman, UV and PL characterizations. The samples exhibit better catalytic activities for improving the hydrogen storage properties and the electrochemical kinetics of the ball milled Mg 2 Ni based composites. Further, the catalysis effects are improved by increasing the doped contents, which can be ascribed to the increasing contents of the oxygen vacancies, defects, the special electron transition states and the nature of the doped ions in CeO 2 -based solid solutions.
研究领域:
材料科学
·
催化化学
·
能源材料
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 32
·期 15
·2109011
·
IF 18.808
Yue Huang,Qiang Gao,Chen Li,Xiaohui Chen,Xu Li,Yi He,Qiao Jin,Jian Ji
Transition metal ions such as Ag + , Cu 2+ , and Zn 2+ are utilized as sterile agents thousands of years ago. Unfortunately, these metal ions in the form of traditional metal or metal oxide nanoparticles cannot be directly medicated into human body due to the potential toxicity. Herein, novel Zn 2+ –ε-poly( l -lysine) (EPL)–protocatechuic aldehyde (PCA)-based hybrid nanoparticles (ZEP NPs) with on-demand release capability are synthesized for the first time by one-step coordination self-assembly of Zn 2+ , EPL, and PCA to address this issue. The ZEP NPs can effectively adhere on bacterial cells and release Zn 2+ in situ due to the decomposition of ZEP NPs in acidic infection microenvironment. More importantly, ZEP NPs exhibit excellent bactericidal ability in a protein-rich environment, in which free Zn 2+ completely loses its bactericidal ability. The excellent bactericidal effect of ZEP NPs is confirmed in a skin infection model and a lung infection model, demonstrating the great potential to deal with internal infections. Meanwhile, ZEP NPs exhibit negligible toxicity since the dose of Zn 2+ can be significantly reduced compared to the commercial zinc oxide nanoparticles (ZnO NPs). The outstanding bactericidal ability as well as negligible toxicity of ZEP NPs makes it ideal candidate of next generation antibacterial agents in treating internal infections.
研究领域:
纳米技术
·
生物医学工程
·
药学
·
传染病学
✓ 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）