Artificial Cells Nanomedicine and Biotechnology
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2018
·
IF 3.026
Huibin Yu,Hongqin Ke,Tu Chen,Xing Li,Shenglong Tan,Lei Zhou,Shenqi Wang
Hemoperfusion using metal ion affinity adsorbent is a promising method to remove human testosterone in plasma. Due to the leakage of metal ion from the adsorbents, there is no metal ion affinity adsorbent for hemoperfusion. In this study, chitosan was used to coat the adsorbent for preventing the leakage of Zn2+ loaded. Meanwhile, freeze-drying method was used to enhance adsorption capacity of Zn2+-loaded cellulose beads for testosterone. The results indicate that after the adsorbent was coated by 0.02% chitosan solution, the highest adsorption percentage reached 48%, during adsorption, the Zn2+ concentration in plasma did not increase; the adsorption capacity of the adsorbent can be significantly enhanced by freeze-drying. The results may be caused by porosity of the adsorbent enlarged via freeze-drying and improved stability by coating with chitosan. In addition, the adsorbent shows better selectivity and storage stability and could be a potential adsorbent to treat prostate cancer.
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高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 30
·期 1
·302-307
·
IF 2.324
Xing C. F.,Liu Q. Q.,Wu H. T.
The Li 2 (Mg 0.9 A 0.1 ) 4 TiO 7 (A = Co 2+ , Ni 2+ , Mg 2+ , Zn 2+ , Ca 2+ ) ceramics were prepared by the conventional solid-state reaction method. A series of Li 2 (Mg 0.9 A 0.1 ) 4 TiO 7 ceramics were investigated in regard to the sintering temperatures, crystal structures and dielectric properties. The Li 2 (Mg 0.9 A 0.1 ) 4 TiO 7 ceramic exhibited a single phase of Li 2 Mg 4 TiO 7 , and the Rietveld refinement was used to analyze the crystal structure. The Li 2 (Mg 0.9 Ca 0.1 ) 4 TiO 7 ceramics could be sintered below 1350 °C with high densities, high dielectric constants and near zero τ f values. The maximum Q · f value of Li 2 (Mg 0.9 Zn 0.1 ) 4 TiO 7 was higher than that of Li 2 (Mg 0.9 A 0.1 ) 4 TiO 7 (A = Co 2+ , Ni 2+ , Mg 2+ , Ca 2+ ). The optimum microwave dielectric properties of ε r = 14.77, a high Q · f value of 162,200 GHz and τ f = − 4.30 ppm/°C were achieved in Li 2 (Mg 0.9 Zn 0.1 ) 4 TiO 7 ceramic sintered at 1500 °C. In addition, Li 2 (Mg 0.9 Ca 0.1 ) 4 TiO 7 ceramic sintered at 1300 °C exhibited the suitable dielectric properties with a high ε r value of 15.79, Q · f = 100,300 GHz and a near zero τ f value of − 1.43 ppm/°C.
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CRYSTENGCOMM
·
2013
·Vol. 15
·期 22
·4473-4482
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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.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2024
·
IF 4.3
Chang Liu,Lu Ren,Xiudong Yang,Yanqi Liu,Huihong Zhang,Wanru Jia,Dawei Zhang
A colorimetric fluorescent probe, 4-(1H-imidazolo[4,5-f][1,10]phenanthroline-2-yl)-N, N-diphenylaniline (PIN), was designed, synthesized and characterized for the sensitive and selective detection of Zn 2+ and Cd 2+ . The color of the solution changed from blue to yellow visible to the naked eye with the addition of Zn 2+ and Cd 2+ . The probe PIN showed good anti-interference to Zn 2+ and Cd 2+ in the presence of a variety of metal ions, and the fluorescence intensity showed a good linear relationship with the concentrations of Zn 2+ and Cd 2+ , with detection limits of 34.84 nM and 35.76 nM, respectively. The probe PIN complexed 2:1 with Zn 2+ and Cd 2+ , and the complexation constants were 1.03 × 10 4 M −1 (PIN − Zn 2+ , R 2 = 0.9971) and 1.50 × 10 4 M −1 (PIN − Cd 2+ , R 2 = 0.9981), respectively. In addition, the PIN could be recovered by EDTA and could be effectively monitored for Zn 2+ and Cd 2+ at pH 4–11, with good results in actual water samples. The HepG-2 cells maintained over 95 % of viability after 24 h exposure to PIN, which identified the extremely low toxic of PIN and could be used for in vivo cell imaging.
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Coatings
·
2024
·Vol. 14
·期 12
·1524
·
IF 2.9
Jiayuan Yang,Jixing Cui,Haiping Zhang,Hui Zhang,Jesse Zhu
Antibacterial powder coatings have attracted increasing attention with the awakening of people’s health awareness. Silver antibacterial agent has been widely used in coating system due to its superior stability and durability. However, silver ions have the problems of excessive release rate and the tendency to cause yellowing of the coating film. The addition of Cu2+and Zn2+can effectively alleviate these two phenomena. In this paper, the ternary exchange kinetics of Ag+, Cu2+, and Zn2+were studied to provide a theoretical basis for the synthesis of LTA-Ag-Cu-Zn. The reaction kinetics study shows that the selectivity and the adsorption capacity of LTA to Ag+is higher than that of Cu2+and Zn2+. The thermodynamic analysis discovers that LTA has the highest selectivity for Ag+, and the exchange between the two is spontaneous. In contrast, the selectivity of LTA to Cu2+and Zn2+is concentration-dependent. By establishing the three-ion competitive adsorption curve, it is found that the selectivity of Ag+is the highest, and the selectivity of copper and zinc is similar. These trends result from Ag+ions’ low hydration energy, small hydration radius, and strong electronegativity. This research lays the groundwork for developing high-performance LTA-Ag-Cu-Zn tri-ion exchange antibacterial agents.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2024
·
IF 4.3
Zetong Meng,Jing Liu,Ting Yu,Zhuobin Shang,Yu Wang,Shaomin Shuang
A novel ratiometric fluorescent probe, namely 5-[(3-dicyanoylidene −5.5-dimethyl) cyclohexenyl-1-ethenyl] salicylaldehyde-3′-hydroxybenzohydrazone (DCSH) is presented for the selective sensing of Zn 2+ ion in acetonitrile/water (2/3, pH 7.4) solution. Introducing Zn 2+ ions notably caused the peak emission of DCSH to shift from 560 nm to 646 nm, accompanied with a significant enhancement of its intensity. A vivid change in fluorescence color from yellow to red facilitated the immediate identification of Zn 2+ ions by visual observation. DCSH exhibits substantial Stokes shifts (110 and 196 nm), rapid detection capability (within 10 s) and high sensitivity to Zn 2+ ions, achieving a limit of detection of 31.2 nM. The response mechanism is supposed to involve the block of C = N bond isomerization and excited state intramolecular proton transfer (ESIPT) along with the enhancement of fluorescence through chelation (CHEF) effect. DCSH was effectively utilized for ratiometric fluorescence imaging to monitor exogenous Zn 2+ concentrations in HeLa cells. Significantly, DCSH is capable of monitoring elevated levels of Zn 2+ ion during apoptosis induced by L-Buthionine sulfoximine (BSO).
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高影响因子
ANALYTICAL CHEMISTRY
·
2011
·
IF 5.874
Hu-Bo Ren,Bo-Yue Wu,Jia-Tong Chen,Xiu-Ping Yan
Detection of intracellular Zn2+ has gained great attention because of its biological significances. Here we show the fabrication of silica-coated S2–-enriched Mn-doped ZnS quantum dots (SiO2–S–Mn–ZnS QDs) by enriching S2– with a silica shell on the surface of Mn-doped ZnS QDs via a sol–gel process for imaging intracellular Zn2+ ions. The developed probe gave a good linearity for the calibration plot (the recovered PL intensity of the SiO2–S–Mn–ZnS QDs against the concentration of Zn2+ from 0.3 to 15.0 μM), excellent reproducibility (1.2% relative standard deviation for 11 replicate measurements of Zn2+ at 3 μM), and low detection limit (3s; 80 nM Zn2+). The SiO2–S–Mn–ZnS QDs showed negligible cytotoxicity, good sensitivity, and selectivity for Zn2+ in a photoluminescence turn-on mode, being a promising probe for photoluminescence imaging of intracellular Zn2+.
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CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Xiaoqiang Xiong,Xiaodong Jing,Qianqian Zhao,Xi Yang,Qun Wang,Guoguo Tan,Tongyun Zhao,Huayang Gong
We successfully synthesized W-type/Spinel composite ferrites containing Co and Zn ions (W/ x S ( x = 0.5, 1, 2, 4, 8)) via “one-pot” sol-gel auto-combustion method. By setting up the comparison groups, the enhanced absorption performance of the composite ferrite materials compared with the single-phase material is clearly demonstrated. The “one pot” synthesis makes the co-existence of Co 2+ and Zn 2+ in the W-phase and S-phase lattices, resulting in composite ferrites with excellent soft magnetic and microwave absorption properties. SEM-EDS characterization revealed that Co and Zn were roughly evenly distributed in the W and S phase. Benefitting from the increased saturation magnetization and decreased magnetocrystalline anisotropy caused by Zn substitution, composite ferrites with excellent soft magnetic properties were obtained at appropriate Co/Zn ratios. W-type/Spinel composite ferrites exhibit tunable magnetic loss characteristics via changing the total Co/Zn molar ratios. On account of the broadband high magnetic loss characteristics, the well comprehensive microwave absorption properties were obtained. For W/0.5S, a minimum reflection loss of −70.46 dB (d = 1.76 mm) is obtained. For W/2S, a maximum effective absorption bandwidth of 10.67 GHz (d = 2.15 mm) is obtained. This work will provide new ideas for improving the microwave absorption performance of existing ferrite materials.
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CARBOHYDRATE POLYMERS
·
2025
·
IF 12.5
Hao Zhang,Hang Wu,Lei Zhang
Compromised cellular function and bacterial infection are major obstacles to effective wound healing. Simultaneous bacterial elimination and cellular function restoration represent a promising strategy for treating infected wounds. Here, a multifunctional hydrogel (QMPZN) composed of methacrylate anhydride (MA)-grafted quaternary ammonium chitosan (QCS-MA), polyvinyl alcohol (PVA), zeolitic imidazolate framework-8 (ZIF-8), and nicotinamide mononucleotide (NMN, a precursor of NAD + involved in cellular metabolism and repair) was developed to achieve combined antibacterial and regenerative effects. The hydrogel rapidly forms in situ under UV light via methacrylate double bond cross-linking, enabling application to irregular wound surfaces. PVA enhances its mechanical strength and tissue adhesion through hydrogen bonding. Benefiting from quaternary ammonium groups and the sustained Zn 2+ release from ZIF-8, QMPZN exhibits strong and durable antibacterial activity. Meanwhile, the controlled release of NMN helps restore cellular function and promote tissue regeneration. In vivo studies showed that QMPZN effectively inhibited bacterial infection and accelerated epithelial regeneration and collagen deposition in infected wounds. These results suggest that QMPZN hydrogel is expected to be a therapeutic platform for the treatment of infected wounds.
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Energy Storage Materials
·
2022
·
IF 20.831
Yong Wang,Yunmiao Fan,Dan Liao,Yiyu Wu,Yang Yu,Chaoquan Hu
The corrosion, parasitic side-reaction and dendrite of Zn anode as well as the dissolution of MnO 2 cathode limit the commercial application of zinc-ion batteries (ZIBs). Herein, a novel coating layer on Zn anode and MnO 2 cathode of rechargeable ZIBs is rationally designed by mixing hexadecyl trimethyl ammonium bromide(CTAB)-pillared organic montmorillonite with ZnSO 4 /MnSO 4 solution (ZnOMMT). ZnOMMT can serve as the protective layer to alleviate Zn corrosion and MnO 2 dissolution while the unique interlayer structure of ZnOMMT can also offer a selective pathway for fast Zn 2+ transfer and uniform Zn 2+ diffusion to inhibit the side-reaction and Zn dendrite generation. Notably, by the powerful pillaring of CTAB cations, the expanded and robust nanoscale interlayer tunnels of ZnOMMT for Zn 2+ diffusion are constructed to guarantee outstanding ionic conductivity (6.52 mS cm −1 ), high Zn 2+ transference number ( t + =0.66) and outstanding cyclic stability during deep cycles. Therefore, ZIBs with ZnOMMT coating layer deliver a steady long-term reversible capacity (267 mAh g −1 until 300 cycles at 0.5 A g −1 , 205 mAh g −1 until 700 cycles at 1.0 A g −1 ). The rational design of CTAB-pillared montmorillonite protective layer brings a brand-new opportunity to the realization of high-performance rechargeable ZIBs.
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Advanced Energy Materials
·
2025
·
IF 26
Lin Huang,Xing Wang,Zihao Li,Shuyue Li,Lei Dong,Juan Wang,Keyu Xie
Interfacial engineering is universally acknowledged as a dependable methodology to address the aqueous zinc metal interface issues. Although it is quite effective, the introduction of a modification layer impedes interfacial ion transport kinetics to some extent. Addressing this trade-off between stability and ion flux is critical for advancing zinc-based energy storage systems. Herein, a layered titanate (H 1.07 Ti 1.73 O 4 , HTO) medium layer enabling fast Zn 2+ transport and ultrahigh Zn 2+ concentration on the zinc anode surface is proposed. It is demonstrated that HTO uniquely facilitates Zn 2+ enrichment through the exchange of interlayer H + ions, achieving an exceptionally high Zn 2+ adsorption concentration of 8.35 m , far exceeding that of electrolyte (2 m ZnSO 4 ). The HTO layer serves as a dynamic ion transport bridge, establishing a continuous conductive pathway, and its inherent negative charge to selectively block sulfate anion (SO 4 2− ) penetration, thus exhibiting dual functionality as an ion conductor and anion sieve. The protected anode (Zn@HTO) exhibits exceptional stability, achieving nearly 2300 h cycling stability at a current density of 0.5 mA cm −2 and over 3900 h at 5 mA cm −2 . Furthermore, Zn@HTO//ZnVO full cell demonstrates prolonged operational stability. This strategy provides a significant stride in breaking through the limitation of electrolyte concentration, thereby enabling fast, stable electrochemical reactions.
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Journal of Saudi Chemical Society
·
2025
·Vol. 29
·期 1
·1-12
·
IF 5.8
Zhang Jilai,Jian Dan,Hu Chenglei,Chen Wenhua,Jiang Ming,Wang Sheng,Su Youbo,Zhang Naiming,Si Zhihao,Lu Menglan
Dissolved organic matter (DOM) strongly influences the geochemical mobility of metal ions, yet little is known about the mechanism of lead (Pb) binding to DOM in the presence of copper (Cu) and zinc (Zn). This research used different types of ultraviolet–visible (UV–vis) spectroscopy analysis technologies, including differential log-transformed spectra coupled with spectral slope calculation, and two-dimensional correlation spectroscopy (2D-COS) analysis to investigate the binding characteristics between Pb and DOM in the presence of Zn and Cu, respectively. The results indicate that the addition both of Zn 2+ or Cu 2+ can reduce the binding of DOM to Pb 2+ , with the effect of Cu 2+ being the most obvious. Specifically, significant changes were evident in the differential log-transformed absorbance at higher Zn 2+ /Cu 2+ concentrations, including modified spectral shapes, absorption wavelength fluctuation, and differential absorption intensity changes. The differential log-transformed absorbance spectral slopes (∆S 350-400 ) exhibited a positive correlation with the predicted NICA-Donnan model value in a wavelength range of 350–400 nm. This suggested that ∆S 350-400 served as an indicator for assessing the complexation characteristics of Pb and DOM binding in the presence of Zn 2+ and Cu 2+ , respectively. The 2D-COS spectral results showed that the presence of Zn 2+ /Cu 2+ changed the binding order of the DOM functional groups in response to Pb 2+ . This study revealed that Zn 2+ and Cu 2+ competed with Pb 2+ for complex sites on the DOM surface in different ways, altering the ability of Pb 2+ to bind with DOM. The results suggest that using differential log-transformed spectroscopy combined with ∆S 350-400 and 2D-COS analyses is a promising approach to understanding the mechanisms of Zn 2+ /Cu 2+ effects on Pb-DOM interactions, which may provide new insights into the prevention, control, and remediation of environmental Pb pollution.
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