ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
De Zhao,Zhihua Wu,Wei Zhang,Jian Yu,He Li,Wen Di,Yourong Duan
To date, ZnO array-based microfluidic fluorescence assays have been widely investigated and have exhibited excellent performance in the detection of cancer biomarkers. However, the requirements of highly sensitive detection necessitate further improvement of current Zn-based fluorescence detection devices. Here, a rhombus-like Zn(OH)F array-based microfluidic fluorescence detection device is proposed. Construction of Zn(OH)F arrays on the inner wall of a microchannel is carried out via a microfluidic chemical method. A substrate-induced growth strategy for Zn(OH)F arrays is proposed, and various micro/nanostructured Zn(OH)F arrays are successfully obtained. Zn(OH)F nanorod arrays with a high aspect ratio can be constructed on the columnar ZnO nanorod arrays, and the results indicate that the fluorescence enhancement factor (EF) of the Zn(OH)F arrays toward Cy3 is approximately 4-fold that of the ZnO nanorod arrays, which can be attributed to the higher excitation light absorption and evanescent electric field. In human epididymis-specific protein 4 (HE4) detection, the limit of detection (LOD) reaches 9.3 fM, and the dynamic linear range is 10 fM to 100 pM. It has been demonstrated that Zn(OH)F nanorod array-based microfluidic devices are excellent fluorescence assay platforms that also provide a new design and construction strategy for fluorescence enhancement substrates for the detection of biomarkers.
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JOURNAL OF PHYSICS D-APPLIED PHYSICS
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2023
·Vol. 56
·期 29
·294003
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IF 3.4
Y F Wang,B X Du,X X Kong,Fan Li,Xin Lin
Bisphenol A and F epoxy resins are often used as the primary insulation in power equipment. This paper investigates the influence of network structure on the dielectric properties of bisphenol A, bisphenol F epoxy resin and their blends. The results show that substituting isopropyl with methylene in epoxy resin enhances the molecular chain packing efficiency, thus limiting the polarization effect while reducing glass transition temperature (Tg). As the content of bisphenol F resin in the blends increases, the polarization loss of the blends continues to decrease, to even lower than that of bisphenol F resin. For the blend containing 20% bisphenol F resin, the Tg and AC breakdown strength at high temperatures are higher than that of bisphenol A resin. Furthermore, based on molecular dynamics simulation, the reason for the limited polarization effect of the blends is further discussed.
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Canadian Journal of Chemistry
·
2025
·
IF 1
Xin Guo,Pai Chen,Rui Wang,Ruijing Sun,Wei Jian,Yang Zhang,Yongsheng Bao,Shuai Wang
Most areas have long been affected by endemic fluorosis, which can lead to fluorosis bone disease and cardiovascular damage. The detection and treatment of fluoridated water has been of great concern. In this work, the sensors SP-1 and SP-2 were synthesized from naphthylamine and pyreneamine with carboxy-modified spiropyran via amidation reaction. The photoisomerization of spiropyran molecules under alternating ultraviolet/visible light irradiation resulted in changes in the conjugation system, which amplifies the combination between F− and the amide bonds of SP-1 and SP-2 molecules, enabling rapid and naked-eye detection of F−. Simultaneously, the impact of two distinct conjugated rings, pyridineamine and naphthaleneamine, on spiropyran detection of F− was investigated. Based on results from the UV spectrum, 1HNMR, and DFT theoretical calculation, it was determined that both sensor SP-1 and SP-2 can detect F− with a binding ratio of 1:1. The detection limits for sensor SP-1 are 0.978 µM for F−, and SP-2 are 0.173 µM for F−. The detection limit of SP-2, with a larger chromophore than SP-1, is lower and exhibits a more pronounced phenomenon. This study holds significant practical implications for rapid anion detection in aqueous environments, visual recognition without the need for specialized equipment, and energy conservation.
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Functional Materials Letters
·
2024
·
IF 1.2
Zhuqing Sun,Yongxia Li,Haowen Bai,Shenghang Jin,Haibo Zhang,Guanying Cao
All inorganic lead halide cesium perovskite quantum dots (QDs) have attracted much attention due to their excellent luminescence properties, but further development is restricted by their stability and the existence of toxic element lead. In this paper, F/Mn-doped CsPb ( Br / Cl ) 3 QDs glass was prepared by melt quenching and heat treatment, with reduced Pb content effectively. The result shows that the spectrum of the QD glass is adjustable between 450 nm and 515.4 nm by changing the feeding ratio of Mn-Pb ion and heat treatment temperature. Moreover, the indraught of Mn 2 + effectively improves the PLQY of CsPb ( Br / Cl ) 3 QDs glass and serves as a red-emitting. The prepared composites not only maintain good fluorescence characteristics, but also greatly improve the stability of QDs. And successfully coupled with blue LED chips to synthesize WLED, Under 20 mA current, the color coordinate is (0.3446, 0.3389).
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AQUATIC TOXICOLOGY
·
2025
·
IF 4.3
Hongbo Yang,Chan Xu,Jieyu Song,Jin Li,Chan Zhang,Chunli Teng,Kai Ma,Feng Xie
Perfluorooctane sulfonic acid (PFOS) and its alternative 6:2 chlorinated polyfluoroethersulfonate (6:2 Cl-PFESA, also known as F-53B), are frequently detected in a variety of environmental and human samples. These substances have been associated with hepatotoxic effects, including disorders in lipid metabolism and oxidative stress. However, the molecular mechanisms underlying the causal relationship between exposure to F-53B and hepatotoxicity remain inadequately understood. This study investigated the toxicokinetics and mechanisms of hepatotoxicity associated with prolonged exposure to F-53B in adult Chinese rare minnows. Specifically, 5-month-old adult Chinese rare minnow was exposed to concentrations of 10 μg/L and 200 μg/L of F-53B for a duration of 28 days for bioaccumulation assessment, followed by a 14-day period for metabolic evaluation. The findings indicated that the bioaccumulation of F-53B in the tissues was positively correlated with the exposure concentrations. The logarithmic bioconcentration factor (Log BCF28d) was determined to be 2.67 ± 0.02 for the low concentration group and 2.27 ± 0.01 for the high concentration group. The calculated half-lives (t 1/2 ) were 18.50 ± 1.67 days and 21.38 ± 0.31 days for the respective concentration groups. F-53B protein exhibited a distinct tissue-specific distribution in adult Chinese rare minnow, with the following order of enrichment: Blood > Liver > Gonad > Gill > Intestine > Brain > Muscle. F-53B was primarily concentrated in the blood and liver, where the protein content was significantly higher. Exposure to F-53B for 28 days significantly elevated biochemical levels associated with lipid metabolism and increased the activities of the enzymes FAS, PPARα, and ACC in the liver. This exposure also resulted in impairment of the hepatic oxidative system in the Chinese rare minnow, with F-53B significantly reducing most of the measured markers related to oxidative stress (e.g., GSH, SOD, CAT, and MDA). Proteomic analysis indicated that the toxicity of F-53B regulates the expression of proteins across several functional classes. Based on the functional information of the differential proteins provided in UniProt and KEGG, they were categorized into five main categories: Cellular Processes, Environmental Information Processing, Genetic Information Processing, Metabolism, and Organismal Systems. This study indicate that F-53B is bioaccumulative and persistent in Chinese rare minnow, and can further induce oxidative stress and lipid metabolism disorders. Combined with proteomic research methods, the toxicological effects of F-53B on Chinese rare minnow can be better explained.
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DOI
PubMed
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·Vol. 13
·期 6
·120116
·
IF 7.2
Wujian Zhang,Yongchao Zhao,Jidong Wang,Kangjun Wang,Hangjia Shen,Zongjian Liu,Wenfeng Han,Ying Li,Aimin Chen,Haodong Tang
The dehydrofluorination of 1,1-difluoroethane (R152a) is a Lewis acid–catalyzed reaction in which both catalytic activity and stability are governed by the coordination and acidity of aluminum sites. In this work, a mechanochemical fluorination strategy was developed to construct a partially fluorinated Al-based catalyst with tunable acid properties. By controlling the fluorine-aluminum ratio during ball milling, the in situ formation of AlF 2 (OH) was achieved, serving as a structural stabilizer and electronic modulator. The coexistence of F-Al-O units and unsaturated Al centers provides medium-strength Lewis acid sites, which favor selective C-F bond activation while suppressing side reactions. Comprehensive characterizations (XRD, XPS, 27 Al NMR, and NH 3 -TPD) confirmed that the defect-related F-Al-O structure maintains structural integrity and balanced acidity during reaction. Consequently, the optimized catalyst exhibits excellent activity, selectivity, and long-term stability in R152a dehydrofluorination.
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Surfaces and Interfaces
·
2025
·
IF 6.3
Kai Yang,Junhao Wang,Dian Yu,Pengqiuyue Pu,Hang Li,Zihao Chen,Yangyang Tang,Zhao Fang
As mineral resources are developed and exploited, the proportion of low-grade zinc ore increases. The concentrations of F - exceeding the optimal range may pose a risk to zinc hydrometallurgy . In the present research, Al 2 O 3 -ZnO microspheres (AZO) characterized by a substantial specific surface area were synthesized through a hydrothermal-roasting technique and applied in industrial zinc sulphate fluoride removal. The optimal adsorption conditions for AZO and the underlying adsorption mechanism were investigated. The results indicated that the adsorption at 12 g·L -1 dosage, original pH=5.32 of the solution and 323 K for 75 min, when the fluoride concentration was reduced to below 50 mg·L -1 , the fluoride removal percentage reached 73.32 %, and the adsorption capacity was 8.55 mg·g -1 . Kinetic studies revealed that AZO exhibited surface inhomogeneity, functioning as a heterogeneous adsorbent, with the fluoride adsorption process being predominantly chemical in nature. The isotherm model suggested that the removal process was characterized by homogeneous adsorption of a monomolecular layer, with a theoretical maximum adsorption capacity of AZO estimated at 9.479 mg·g -1 . FT-IR and XPS analyses demonstrated that the defluorination process occurs through ion exchange between F - and -OH, as well as the formation of Zn/Al-F complexes. Consequently, AZO present a novel approach for developing an effective adsorbent for defluorination in industrial ZnSO 4 solutions.
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Inorganic Chemistry Frontiers
·
2025
·
IF 6.4
Tian-Tian He,Chun-Li Hu,Ya-Ping Gong,Jiang-Gao Mao,Fang Kong
In this work, we present a targeted design strategy that combines Group IIIA metal cation and fluorine anion to simultaneously enhance the band gap and birefringence in selenite-based system. Three new ultraviolet (UV) transparent selenite fluorides, SrAl(SeO3)F3 (1), BaAl(SeO3)F3(H2O)0.25 (2), and ZnGa(SeO3)2F (3), were successfully synthesized under mild hydrothermal conditions. Remarkably, all three compounds exhibit wide band gaps as well as large birefringence. In particular, ZnGa(SeO3)2F (3) demonstrates a pronounced birefringence value of 0.176 at 546 nm, representing the highest birefringence reported among all known selenites with a band gap above 5.0 eV. Theoretical investigations indicate that the strong optical anisotropy is predominantly attributed to the stereochemically active lone-pair electrons of Se(IV) cations. The [Zn2O8] dimers and the infinite [GaO4F]∞ chains in ZnGa(SeO3)2F (3) crucially facilitate the optimal spatial arrangement of [SeO3] groups. This study expands the structural diversity of selenite fluorides and provides an effective pathway for designing high-performance birefringent crystals suitable for UV applications.
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ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Li-Qian Cheng,Xinyuan Xie,Kai Chen,Xuxia Hao,Min Jiang,Yanping Tang,Haijiao Xie,Zhaoyin Wen
The pursuit of high-power and prolonged service life lithium ion batteries has driven extensive research into novel anode materials. Titanium niobium oxide (TNO) has arisen as a prospective contender due to its high reaction potential and low strain performance, which effectively avoid side reactions and suppress the formation of lithium dendrite. However, challenges such as poor conductivity and structural instability during high-rate cycling have hindered their practical application. In this study, high-performance V5+ and F– codoping of the TiNb2O7 (V/F-TNO) anode is obtained by a facile solvothermal method and exhibits outstanding electrochemical properties in both liquid- and solid-state batteries. Under the synergistic effect of V5+ and F– doping, impurity bands and additional oxygen vacancies are introduced to enhance the conductivity, while the particle size is reduced, which significantly improves its rate performance. In addition, a more stable crystal structure improves its cycle life. Thereby, the V/F-TNO anode displays a high reversible capacity of 322.8 mAh g–1 at 0.1 C and a superior rate capability of 222.6 mAh g–1 at 20 C. During long-term cycles, the V/F-TNO anode presents an outstanding discharge capacity of 178.5 mAh g–1 after 1500 cycles at 10 C, equivalent to a capacity retention rate of 78.2%. LiFePO4 (LFP)|Li1.3Al0.3Ti1.7(PO4)3 composite polymer electrolyte (LATPCPEs)|V/F-TNO solid-state batteries (SSBs) are assembled and display ideal capacities of 129.3 mAh g–1 at 0.2 C and 83.5 mAh g–1 at 5 C. Moreover, they retain an extraordinary capacity of 101.7 mAh g–1 after 200 cycles at 0.5 C, corresponding to a high-capacity retention ratio of 86%. This study demonstrates that the V/F-TNO anode is a promising candidate for high-power liquid and solid-state batteries.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Peng Wei,Yanxiang Liu,Yarui Su,Ling Miao,Yangyang Huang,Yi Liu,Yuegang Qiu,Yuyu Li,Xiaoyu Zhang,Yue Xu,Xueping Sun,Chun Fang,Qing Li,Jiantao Han,Yunhui Huang
We are presenting a sol–gel method for building novel nanostructures made of nanosized F-doped Na1–2xTi2(PO4)3–xFx (NTP-Fx, x = 0, 0.02, 0.05, and 0.10) particles embedded in three-dimensional (3D) carbon matrices (NTP-Fx/C). This technique combines advantages of both zero-dimensional materials and 3D-carbon networks. Proper fluorine doping stabilizes the NTP structure and greatly enhances ion/electron transportation, leading to superhigh-rate electrochemical performance and ultralong cycle life. The composite electrode delivers high specific capacities of 121, 115, 112.2, 110.1, 107.7, 103.1, 85.8, and 62.5 mA h g–1 at 0.2, 0.5, 1, 2, 5, 10, 20, and 30 C, respectively. It retains an unbelievable ∼70% capacity after a thousand cycles at a rate as high as 10 C. Electroanalytical results reveal that fluorine doping significantly enhances Na+ diffusion kinetics. Meanwhile, density functional theory calculations demonstrate F-doped NTPs’ own outstanding electrochemical properties, which is due to the enhanced intrinsic ionic/electronic conductivity. The results show that anion doping is an efficient way to make high-performance NTP anodes for sodium-ion batteries.
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JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 139
·期 14
·51906
·
IF 3.125
Bin Du,Daodao Xue,Rubai Luo,Kenan Yang,Huailin Li,Shisheng Zhou
Epoxy resin is one of the most important matrix materials in the field of high performance composites. Its mechanical strength, toughness, and thermal stability are very important to the properties of composites. In this paper, the improvement of epoxy resin properties by carbon nanotubes (CNTs) is mainly studied. First, aniline trimer (AT) and polyethylene glycol octyl phenyl ether (Triton X-100) are combined to modify CNTs. Then the dispersed CNTs (treated-CNTs) are used to prepare bisphenol F epoxy nanocomposites. The dispersion of CNTs and fracture surface of composites are analyzed by SEM and TEM. The combination of AT and Triton X-100 with CNTs is analyzed by UV–vis and FTIR. The mechanical, thermodynamic, tribological properties, and crosslinking density changes of epoxy composites are evaluated. The results show that AT and Triton X-100 are successfully bonded to the surface of CNTs. The dispersion effect of treated-CNTs in the composites is better than that of the original CNTs, which have a better reinforcing and toughening effect on the composites. The introduction of treated-CNT reduces the crosslinking density and glass transition temperature of the composites, but does not affect the thermal stability of the composites before 300°C.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2011
·
IF 2.13
Xin Tian,Zhengping Dong,Yifan Huang,Jiantai Ma
In this work, molecular logic element modified multifunctional silica nanoparticles having high magnetization have been successfully prepared. These multifunctional nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), Elementary analysis, X-ray powder diffraction (XRD) and Vibrating sample magnetometer (VSM). The characterization datum indicated that the organic ligand was successfully grafted on the surface of the magnetic silica nanoparticles . The fluorescent changes of the hybrid material upon the addition of cations (H + , F − and their mixture) is utilized as an INHIBIT logic gate at the molecular level, using the fluorescence intensity signal as output.
研究领域:
纳米医学
·
生物传感器
·
分子诊断
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化学生物学
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智能材料
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危险品化学品经营许可证（带存储）