Acta Biomaterialia
·
2025
·
IF 9.6
Zhizi Ma,Zhuang Yang,Jie Ma,Sainan Liu,Qi Meng,Wenying Zhang,Ziyong Cheng,Zhangfeng Wang,Abdulaziz A. Al Kheraif,Ping’an Ma,Jun Lin
With the deepening of research of sonodynamic therapy (SDT), it is shown that the efficacy of single component and single functional sonosensitizers is not satisfactory. Therefore, this study utilized multihole TiO 2 @Ag 2 O (TA) as sonosensitizer to achieve synergetic SDT and sonothermal therapy (STT) under US irradiation. As a p-n nanoformulation, the construction of TA is conducive to generate a built-in electric field and lead to energy band bending, which are efficient in separating electrons and holes. Besides, it can promote carrier relaxation between the different energy bands to produce abundant phonons, inducing lattice thermal vibration and realizing the conversion of mechanical energy to thermal energy. Moreover, the feasibility of enhancing cavitation effect for improving sonothermal capability is demonstrated for the first time. When TA enters tumor cells under US irradiation, plentiful ⚫OH and 1 O 2 are generated to attack mitochondria, causing dysfunction, disrupting energy supply and damaging DNA, thereby inducing apoptosis. Meanwhile, TA can also cause rapid local heating of surrounding environment to kill tumor cells by lattice thermal vibration and cavitation bubbles bursting on its surface. Obviously, this work effectively achieves both heterojunction enhanced SDT, and carrier relaxation and cavitation effect promoted STT combined anti-tumor therapy through designing multihole p-n TA. Statement of Significance None
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DOI
PubMed
高影响因子
CHEMICAL PAPERS
·
2025
·
IF 2.5
Gu Peng
Dielectric composites with high dielectric constant, minimal dielectric loss and low conductivity can well serve for energy storage capacitors. High dielectric loss is not favorable due to large energy waste. Here, to improve dielectric constant of poly(vinylidene fluoride–hexafluoropropylene) by electric percolation, semiconducting NiO filler was added to form composites. However, high leakage current from interfaces can lead to high dielectric loss. Doping insulating α-Al 2 O 3 particles with stable structure, low chemical activity and high modulus into above binary composites can reduce dielectric loss. By changing NiO dose, dielectric constant was well tailored. Dose of α-Al 2 O 3 was left unchanged. Dielectric loss, conductivity and dielectric constant of composites were measured. By the same NiO loading, dielectric loss, conductivity and dielectric constant in ternary composites can be reduced, compared with binary composites. The optimal ternary composite should contain 35 wt% NiO and 4 wt% α-Al 2 O 3 . Optimized dielectric traits of this composite can be reflected by dielectric constant of ~ 64 and dielectric loss of ~ 0.27 under 100 Hz electric field.
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DOI
高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Pai Peng,Tianhao Li,Yichun Cai,Yao Zhang,Zhuoxi Li,Zhao-Bin Ding,Qiang Chen
Selective hydrogenation of nitroaromatics to anilines is a kind of important reaction in pharmacy industry and fine chemical engineering. However, this reaction is restrained by lack of catalysts and reaction system with high efficiency, energy saving, environmental protection and high selectivity. Herein, Cu nanoclusters were successfully encapsulated into Silicalite-1 zeolite by in-situ hydrothermal synthesis with ligand protection to obtain Cu@S-1 catalyst. The catalyst showed an excellent selectivity of 98 % with substrate conversion of 100 % in the hydrogenation of p -nitrostyrene to 4-vinylaniline using ammonia borane as hydrogen source, which was due to the preferential adsorption effect of Cu@S-1 catalyst on the nitro group. The Cu@S-1 catalyst also exhibits good recycling performance and substrate compatibility.
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DOI
高影响因子
CHEMOSPHERE
·
2019
·
IF 5.108
Limin Hu,Peng Wang,Guoshuai Liu,Qingzhu Zheng,Guangshan Zhang
In this study, Fe 3 O 4 and microwave (MW) were combined to activate persulfate (PS) for the removal of organic matter, resulting in the enhanced degradation of p -nitrophenol (PNP) in solution. During the preparation of Fe 3 O 4 , the effect of sodium acetate was examined, and the results showed that the concentration of sodium acetate had little effect on the catalytic activity of the Fe 3 O 4 /PS/MW system but did have an effect on the Fe 3 O 4 yield. In addition, with regards to the representative environmental factors, the degradation experiment showed that humic acid and the co-existing anions of chloride, sulfate, nitrate, and phosphate had little effects on p -nitrophenol removal; however, carbonate had a negative effect. In addition, the Fe 3 O 4 /PS/MW system performed well in the initial pH range of 3.0–9.0. According to the quenching experiment and electron paramagnetic resonance (EPR) detection, sulfate radicals and a minority of hydroxyl radicals play dominant roles in the degradation process. In addition, the role of Fe 3 O 4 was confirmed to take part in the degradation process by X-ray photoelectron spectroscopy (XPS) analysis. Because of the good performance observed in the water matrices of tap water and the Songhua River, these results demonstrate the potential application of the Fe 3 O 4 /PS/MW system for wastewater treatment .
研究领域:
环境科学
·
化学工程
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2026
·
IF 2.5
Fan Qiao,Jingquan Liu,Xiaole Gong,Fei Li,Junhui Chen,Honglei Liu
Sodium alginate, a natural polysaccharide with renewable, biodegradable and multifunctional characteristics, represents an ideal sustainable material for diverse industrial applications. However, its potential for developing eco-friendly mosquito-repellent textiles remains largely unexplored, with only limited studies reported to date. This research gap persists despite the significant global health threat posed by mosquitoes, which are among the most dangerous disease vectors worldwide and spread diseases that cause millions of deaths every year. In view of the challenges, such as high volatility rate and complex fabrication processes, posed by the application of mosquito repellents to clothing through spraying or micro-encapsulation methods at present, developing textiles with simple preparation, high-efficiency and long-lasting mosquito repellency offers a highly promising solution to mosquito-related health issues. In this study, an eco-friendly synthesis strategy for grafting alginate derivatives with p-menthane-3,8-diol was developed through acidification and esterification reactions using environmentally friendly and biocompatible sodium alginate (SA) as a raw material. Furthermore, by exploring the optimal mosquito repellent ratio and coating thickness through the system, the synthesized p-menthane-3,8-diol-grafted alginate derivatives could be applied to wearable textiles, such as ice sleeves, exhibiting excellent mosquito-repellent performance while balancing air and moisture permeability, effectively preventing mosquitoes from approaching humans.
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DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2014
·
IF 1.178
Chang-Lei Liu,Gang Wu,Si-Chong Chen,Jiao You,Yu-Zhong Wang
Poly( p -dioxanone)-block-polyethylene glycol diblock copolymers functionalized with pyrene moieties (Py-PPDO-b-PEG) at the chain ends of PPDO blocks were synthesized for preparing anisotropic micelles with improved stability. The micellization and crystallization of the copolymers were investigated by nano differential scanning calorimetry (Nano DSC), transmission electron microscopy (TEM), UV–vis spectrophotometery, fluorophotometer, and dynamic light scattering (DLS), respectively. The results indicated that the aggregation of pyrene induced by intermolecular interaction lead to micellization of Py-PPDO-b-PEG at much lower concentrations than those of PPDO-b-PEG copolymers without pyrene moieties. The aggregation of pyrene moieties may also serve as nucleation agent and therefore enhance the crystallization rate of PPDO blocks. Fluorescence measurements by using Nile Red as the fluorescent agent indicated that the micelles of Py-PPDO-b-PEG have high stability and load capacity for hydrophobic molecules.
研究领域:
材料科学
·
高分子化学
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DOI
高影响因子
Functional Materials Letters
·
2019
·
IF 1.388
Lin Zhao,Yanzhao Xie,Qiuyu Lin,Rongze Zheng,Yong Diao
A series of composite catalysts of C, N and P co-doped TiO 2 were prepared by sol-gel method, using a biomass (soluble starch) dopant. The samples were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectroscopy (DRS), fourier transform infrared (FTIR) spectroscopy. The results show that TiO 2 is co-doped with C, N and P by one step. The resulting composite exhibited higher specific surface area, wider visible-light absorption band with respect to the pure TiO 2 . The sample calcined at 400 ∘ C for 2 h with a doping amount of 6 g soluble starch showed the best electrochemical performance. The C, N and P co-doped TiO 2 was also used for the degradation of methylene blue (MB) and degradation ratio was up to 98% in 80 min under visible light irradiation.
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DOI
高影响因子
INORGANIC CHEMISTRY
·
2026
·
IF 4.7
Yuguo Feng,Caikang Wang,Xueting Wang,Zhijuan Li,Liang Liu,Zihan Zhou,Zhe Xu,Xuanxiao Zhu,Meng Li,Dongmei Sun,Yawen Tang
The development of highly active and durable electrocatalysts for the alkaline hydrogen evolution reaction (HER) is essential for advancing sustainable hydrogen production through anion exchange membrane water electrolysis (AEMWE). In this work, we report the one-pot solvothermal synthesis of Ga-doped Ru nanosheets (RuGa NSs) as a high-performance alkaline HER catalyst, where Ga incorporation is shown to optimize the interfacial water structure to enhance catalytic activity. The optimized RuGa NSs exhibit outstanding alkaline HER performance, requiring a low overpotential of only 18 mV at 10 mA cm–2, coupled with a small Tafel slope of 37.2 mV dec–1. When integrated into an AEMWE device, the RuGa NSs||NiFe-LDH-based AEMWE enables a low cell voltage of 1.74 V to deliver 1.0 A cm–2 in 1.0 M KOH at 60 °C. Moreover, the AEMWE device shows exceptional long-term stability, operating continuously for 200 h at 0.5 A cm–2 with a minimal voltage decay of 5.5%. Operando Raman spectroscopy results demonstrate that Ga doping promotes the dynamic transformation of rigid, hydrogen-bonded water into more mobile free-water molecules. This restructuring creates a favorable local reaction environment by increasing the flexibility of the hydrogen-bond network, thereby facilitating water dissociation and proton transfer.
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DOI
PubMed
高影响因子
Polymers
·
2019
·Vol. 11
·期 12
·
IF 3.164
Tingting Chen,Xingqin Fu,Luzi Zhang,Yuejun Zhang
The poly(acryloyloxyethyl trimethyl ammonium chloride–co–acrylamide), P(DAC-AM), is a kind of cationic polyelectrolyte usually applied in a solution form, and its performance is affected by its structure and the environment where it is used. In particular, its viscosity properties in salt solutions are directly related to its efficacy in various applications, and the performance is one of the most important solution properties. Therefore, in this paper, the effects of the salt concentration and valence of seven kinds of inorganic salts, NaCl, LiCl, KCl, MgCl2, AlCl3, Na2SO4, and Na3PO4, on the values of apparent viscosity (ηa) of P(DAC-AM) samples with cationicity of 10%, 50%, and 90%, and intrinsic viscosity ([η]) of 5, 10, and 15 dL/g were investigated. Theηawas determined using a rotational viscometer. The interaction mechanism between the polymers and salt ions was also investigated. The results showed that depending on the salt concentration, theηafirstly decreased sharply to the inflection point which indicated the minimum volume of the molecule shrinking, and then either maintained the value unchanged or increased. The salt concentration corresponding to the inflection point decreased with the increase of the salt ion valence but with the reduction of the cationicity of the polymer. Theηaat the inflection point increased as the [η] of the polymer grew. This indicated that the salt concentration and the salt ion valence had a notable impact on the stretch of the cationic polymer molecule in the salt solutions. It was discovered that the phenomenon of the increase of theηaof P(DAC-AM) samples in the multivalent salt solutions after the inflection point was caused by not only the increase of theηaof the complexes formed from the pure salts, but also the viscosity resistance of the charge and volume between the polymer molecules and salt ions, as well as the complexes themselves. The linear relationship between the increasedηaand the salt concentration, representing the interaction both among the complexes themselves and between the polymer and complexes, was obtained. Furthermore, the interaction model between the salt ions and P(DAC-AM) molecules in a wide range of salt concentrations was illustrated.
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高影响因子
Small
·
2023
·Vol. 20
·期 19
·2306786
·
IF 13.3
Qinghui Jiang,Deng Pan,Yunfan Wang,Yong Liu,Yubo Luo,Junyou Yang,Baowen Li,Steve Dunn,Haixue Yan
There is increasing demand to power Internet of Things devices using ambient energy sources. Flexible, low-temperature, organic/inorganic thermoelectric devices are a breakthrough next-generation approach to meet this challenge. However, these systems suffer from poor performance and expensive processing preventing wide application of the technology. In this study, by combining a ferroelectric polymer (Polyvinylidene fluoride (PVDF, β phase)) with p-type Bi 0.5 Sb 1.5 Te 3 (BST) a thermoelectric composite film with maximum is produced power factor. Energy filter from ferroelectric-thermoelectric junction also leads to high Seebeck voltage ≈242 µV K −1 . For the first time, compelling evidence is provided that the dipole of a ferroelectric material is helping decouple electron transport related to carrier mobility and the Seebeck coefficient, to provide 5× or more improvement in thermoelectric power factor. The best composition, PVDF/BST film with BST 95 wt.% has a power factor of 712 µW•m −1 K −2 . A thermoelectric generator fabricated from a PVDF/BST film demonstrated P max T 12.02 µW and P density 40.8 W m −2 under 50 K temperature difference. This development also provides a new insight into a physical technique, applicable to both flexible and non-flexible thermoelectrics, to obtain comprehensive thermoelectric performance.
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DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·Vol. 11
·期 12
·9868-9880
·
IF 1.5
Hongying Li,Xueliang Wang,Tao Wang,Zhaoxia Wang,Wei Zhao
A modified electrode was fabricated by casting graphene oxide (GO) suspension onto the surface of active glassy carbon electrode (GCE), and it can significantly enhanced the oxidation peak currents of m-trihydroxybenzene (m-THB) and p-nitrophenol (p-NP). Based on this, a sensitive analytical method towards their simultaneous determination was established. Many influencing factors such as the type of electrolyte, acidity, scan rates and concentrations were explored. Under the optimal experimental conditions, the oxidation peak currents of m-THB and p-NP were linearly increased with their concentrations ranging from 9 to 100 μM, with the detection limits both of 1 μM. Comparing with other reported methods, this sensor showed wider linear range and lower detection limit. In addition, the proposed method was successfully used to analysis of real environmental water samples with satisfactory recoveries, which verified the practicability of the sensor.
研究领域:
分析化学
·
环境科学
·
电化学
·
传感器技术
·
污染物检测
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DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2011
·
IF 2.089
Xiqian Li,Xiao Zhou,Jun Mu,Lijun Lu,Dachuan Han,Chunmei Lu,Mingtai Wang
We have studied the adsorption of p-aminophenol on poly(aryl ether ketone) containing pendant carboxyl groups (PEK-L). The pH effect, adsorption kinetics, isotherms, and thermodynamics are investigated in batch experiments. The kinetics of the adsorption follows a pseudosecond-order model. Langmuir and Freundlich isotherms are employed to describe the adsorption process, indicating that the former fits the data better. The thermodynamic functions, ΔG°, ΔH°, and ΔS° are calculated. The method is applied to the determination of p-aminophenol in drug tablet samples, and the accuracy is assessed through recovery experiments.
研究领域:
环境化学
·
高分子科学
·
吸附科学
·
化学工程
·
分析化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）