Materials Today Chemistry
·
2026
·
IF 6.7
Bo Wang,Maosheng Wan,Li Hua,Feiqing Rao,Jialin Liang,Zejie Zhao,Chunquan Li
HDPE has attracted significant attention owing to its outstanding corrosion resistance, ease of processing, and cost effectiveness. Nevertheless, it has low toughness and is prone to aging, which results in a decline in mechanical properties and restricts its application in special fields. Using diethanolamine, boric acid, phenol, 2,4,6 -trichloro- 1,3,5 -triazine and long chain primary amines as raw materials, a series of multifunctional double chain tricyclic borate coupling agents 8a-f with novel structures were designed and synthesized. The structure of the target compounds was characterized by FT-IR and 1 H NMR. Thermal analysis showed that the double long chain tricyclic coupling agents had high thermal stability and the thermal decomposition temperature was as high as 270 °C. The oil absorption value of GCC powder treated with compound 8f decreased from 30.4 g/100 g– 13.6 g/100 g, and the contact angle increased from 0° to 135.4° . Compared with the unmodified composite, the mechanical properties of the modified GCC/HDPE composite were significantly enhanced, and its impact strength, tensile strength and bending strength were increased by 48.7 %, 48.6 % and 58.2 %, respectively. After 1000 h of UV aging, the tensile strength of the modified composite decreased by only 0.6 %, and there was no yellowing phenomenon, indicating that it has excellent aging resistance. This study provides a reference strategy for the development of functional coupling agents and high-performance composite materials.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·
IF 3.9
Wang Rong,Tian Xiao-Li,Li Jin,Chen Jia-Jia,Hu Yue,Zhang Ji
Ferroptosis is a non-apoptotic form of cell death that offers unique advantages in various cancer therapies. Gene therapy, on the other hand, involves transferring therapeutic genes into cancer cells to regulate related proteins and exert therapeutic effects. Nanomaterials that combine the ability to induce ferroptosis in cancer cells with gene delivery functionality hold great potential for tumor therapy. Herein, we designed and synthesized a series of ferrocene-containing (Fc) cationic lipids (NFC-1~4) based on the Ugi reaction. Fc, as a typical Fenton reaction catalyst, can effectively trigger ferroptosis in cancer cells. The results showed that NFC-1~3 lipoplexes could be efficiently taken up by A549 cells and exhibit excellent gene transfection capabilities, with the best transfection efficiency surpassing that of Lipofectamine 2000. Reactive oxygen species (ROS) detection experiments revealed that NFC-2 possesses Fenton characteristics, enabling it to induce the Fenton reaction and produce ROS. In vitro antitumor experiments demonstrated that NFC-2 LNPs could inhibit tumor cell growth to some extent, with its efficacy significantly enhanced after DNA encapsulation. Mechanistic studies indicated that the Fenton reaction mediated by NFC-2@DNA lipoplexes converted endogenous H 2 O 2 into highly toxic ·OH, leading to increased intracellular ROS levels, glutathione (GSH) depletion, and inactivation of glutathione peroxidase 4 (GPX4). The disruption of the cellular redox balance caused excessive accumulation of lipid peroxides (LPOs), ultimately inducing ferroptosis. NFC-2 holds promise as an efficient ferroptosis agent and a dual-function lipid for co-delivering DNA, offering potential for combined gene therapy and ferroptosis-based cancer treatment. Graphical abstract
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BIOMACROMOLECULES
·
2025
·
IF 5.4
Yanyao Wang,Chengcheng Zhao,Taohong He,Weipeng Zhao,Annela M. Seddon,Dave J. Adams,Honghui Yang
Abundant reversible noncovalent interactions contribute greatly to the anisotropy of supramolecular morphologies and the transformation across multiple structures. However, the trigger (group) to drive the transformation remains obscure. Herein, H-bonding between free N-terminal amines of l-tryptophan derivatives (GTCn) and DMSO, triggering a morphological transition is revealed from flat to twisted nanoribbons by tuning DMSO/H2O ratios. Corresponding dynamic macroscopic morphology evolution from an aggregated cluster to a flower-like sphere of gel is observed under an optical microscope. Combined experiments and molecular dynamics (MD) simulations establish this H-bonding as the submolecular trigger, which simultaneously induces the change of π–π stacking, from the J-type to H-type. Alkyl chains at the C-terminus modulate structural dimensions, while gel thixotropy is governed by chiral morphology. These results provide a molecular strategy for precisely triggering twisted ribbon formation in self-assembly alongside the injectable chiral gel systems visible under optical microscopy.
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ACS ES&T Engineering
·
2023
·
IF 7.1
Chao Zhang,Huike Zhang,Xin Wan,Yue Xie,Michael J. Bentel,Zhanjiang Yu,Zhenguo Chen,Jiaan He,Junlang Li,Xuezhu Xiang,Xinzhi Wang,Zhaoli Wang,Guang-Guo Ying,Dionysios D. Dionysiou,Mingzhi Huang
Pollution removal via peroxymonosulfate (PMS)-mediated advanced oxidation processes provides an effective approach for water remediation. Although numerous carbon allotropes have been applied in PMS activation, the application of graphdiyne-based catalysts has been practically unexplored in this process despite their excellent electronic properties. In this study, the first instance of exploiting N-doped graphdiyne nanotubes (NGNTs) for metal-free PMS activation is presented to remove recalcitrant heterocyclic contaminants in aqueous environments. This mechanistic study demonstrates that the NGNT–PMS system decomposes heterocyclic contaminants via electron-transfer-mediated nonradical oxidation, where metastable NGNT–PMS* complexes were the primary oxidants. The apparent reaction rate constant for the NGNT–PMS system is 2.4 and 3.1 times higher than those for the counterpart systems by N-doped carbon nanotubes (NCNTs) and graphene oxide (NGO) systems, respectively. The NGNT exhibits excellent N-doping potential, demonstrated by a 7-fold increase in atomic nitrogen compared to NCNT in an identical N-doping procedure. The possible N-doping sites in NGNT were determined as mainly sp-N-1, sp-N-2, pyridinic-N, amino-N, and graphitic-N atoms by the N K-edge X-ray absorption near-edge structure spectra and X-ray photoelectron spectroscopy. Theoretical calculations demonstrate the relatively obvious electron transfer between PMS and different N-sites in NGNT, indicating the possible formation of NGNT–PMS* complexes. Additionally, the NGNT–PMS system plays an important role in the cleavage of pyridine heterocycles and C–Cl bonds as demonstrated by the destruction of nitenpyram. This study provides mechanistic insights into the roles of NGNT in the metal-free activation of PMS for the remediation of recalcitrant heterocyclic contaminants.
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CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Yixing Cai,Yangyang Zhang,Shuaibing Gao,Jian Chen,Meilin Wan,Yongming Hu,Yunbin He,Qingfeng Zhang
Currently semiconductor-based near ultraviolet and ultraviolet self-powered photodetectors usually display low detectivity and responsivity due to weak photogenerated electron and hole separation ability and not suitable electrode. BaTiO 3 possesses a high depolarization electric field throughout the bulk and wide band gap (> 3 eV), and hence is a good candidate for fabricating near-ultraviolet and ultraviolet self-powered photodetectors. Cu nanowires (NWs) have been regarded as promising transparent electrode for photodetectors because they have not only equivalent optical transparency and electrical conductivity relative to Ag NWs currently in use, but also far lower cost. But, weak resistance to oxidation in the environment of light and electricity prevents large-scale use of Cu NWs in photodetectors. Herein, an organic corrosion inhibitor , benzotriazole (BTA), is used to passivate Cu NWs, and interestingly, the passivated NW networks exhibit significantly increased resistance to oxidation. At zero field, the BaTiO 3 photodetector coated with Cu@BTA NWs exhibits stable photocurrent, high responsibility of 6.45 × 10 −7 A/W, large detectivity of 1.97 × 10 8 Jones, and fast response rate (rise and decay time being 28.8 ms and 37.2 ms, respectively) at the wavelength of 405 nm, which is far better than indium-tin-oxide electrode-coated BaTiO 3 photodetector. This work provides a strong guideline for large-scale fabrication of low-cost and high-stability transparent electrodes applicable in near-ultraviolet and ultraviolet photoelectric devices.
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JOURNAL OF MOLECULAR LIQUIDS
·
2023
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IF 6
Shengfeng Ye,Zhaolan Zhai,Zhanqian Song,Shibin Shang,Binglei Song
Wormlike micelles are attractive soft materials, their further combinations with nanoparticles providing a novel kind of functional materials in various applications. Using rosin as the starting materials, a biobased surfactant (CMPA2Na) was synthesized. Its structure was characterized using 1 H NMR, FT-IR and MS. Viscoelastic wormlike micelles were prepared using CMPA2Na with cetyltrimethylammonium bromide (CTAB). Wormlike micellar system enchanced by cellulose nanocrystals (CNCs) was further constructed. The viscoelasticity, microstructure and interaction mechanism of the CMPA2Na/CTAB/CNCs system were comprhesively investigated using FT-IR, rheology and Cryo-TEM. The viscoelasticity monotonously increased with increasing addition amount of CNCs. And the viscoelastic solutions transformed into hydrogels as the addition amount of CNCs was larger than 0.5 %. Unexpectedly, a dramatical increase of 67 times in viscosity and 10 times in elasticity were obtained, surpassing the reported wormlike micelles combined with nanoparticles. In addition, the wormlike micelles enhanced with CNCs could maintain the excellent viscoelasticity under high temperature. The network of the wormlike micelles was prominently strengthened by the strong hydrogen bonds and electrostatic interactions between the wormlike micelles and CNCs. The study provided a biobased wormlike micelle modified by nanoparticles with high viscoelasticity and excellent temperature-resistance, facilitating the applications of biomass resources in the petroleum industry.
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Small
·
2023
·Vol. 19
·期 18
·2207240
·
IF 13.3
Yuanmeng Zhao,Yunhao Jiang,Yan Mo,Yueming Zhai,Juejing Liu,Andrew C. Strzelecki,Xiaofeng Guo,Changsheng Shan
It is critical to develop high-performance electrocatalyst for electrochemical nonenzymatic glucose sensing. In this work, a single-atom Pt supported on Cu@CuO core–shell nanowires (Pt 1 /Cu@CuO NWs) for electrochemical nonenzymatic glucose sensor is designed. Pt 1 /Cu@CuO NWs exhibit excellent electrocatalytic oxidation toward glucose with 70 mV lower onset potential (0.131 V) and 2.4 times higher response current than Cu NWs. Sensors fabricated using Pt 1 /Cu@CuO NWs also show high sensitivity (852.163 µA mM −1 cm −2 ), low detection limit (3.6 µM), wide linear range (0.01–5.18 µM), excellent selectivity, and great long-term stability. The outstanding sensing performance of Pt 1 /Cu@CuO NWs, investigated by experiments and density functional theory (DFT) calculations, is attributed to the synergistic effect between Pt single atoms and Cu@CuO core–shell nanowires that generates strong binding energy of glucose on the nanowires. The work provides a new pathway for exploring highly active SACs for electrochemical nonenzymatic glucose sensor.
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LANGMUIR
·
2023
·
IF 3.9
Jia Zhang,Xiaoyin Cao,Rui Jiao,Wenwen Luo,Yingjiao Ma,Yanjun Chen,Jiyan Li,Hanxue Sun,An Li
Composite phase change materials (PCMs) are of great importance for the storage and conversion of energy. In this study, a multishell metal oxide hollow microsphere (CuOHS) was prepared by the hydrothermal method, and a new composite PCM (CuOHS@PCMs) for energy storage and conversion purposes was developed by effectively absorbing fatty amines [namely, tetradecylamine (TDA), hexadecylamine (HDA), and octadecylamine (ODA)] PCMs into the CuOHS via the abundant micropores located on the surface of the microsphere. The incorporation of uncontaminated phase alteration substances with CuOHS yields superior light absorption and leak prevention traits. The three CuOHS@PCMs, specifically CuOHS@TDA, CuOHS@HDA, and CuOHS@ODA, possess considerable latent heats of 198.8, 192.6, and 196.0 J·g–1, respectively, and exhibit desirable thermal properties even after completing 50 and 100 thermal cycles. Moreover, under illumination, the photothermal conversion efficiencies of the three variations of CuOHS@PCMs were 84.0, 81.4, and 78.0%. This CuOHS@PCMs, which are based on CuOHS, have considerable potential in the fields of photothermal conversion, solar energy harvesting, and storage.
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Nature Communications
·
2023
·Vol. 14
·期 1
·1-10
·
IF 16.6
Du Wei,Gao Feng,Cui Peng,Yu Zhiwu,Tong Wei,Wang Jihao,Ren Zhuang,Song Chuang,Xu Jiaying,Ma Haifeng,Dang Liyun,Zhang Di,Lu Qingyou,Jiang Jun,Wang Junfeng,Pi Li,Sheng Zhigao,Lu Qingyi
The reversible transformation of a nanohelix is one of the most exquisite and important phenomena in nature. However, nanomaterials usually fail to twist into helical crystals. Considering the irreversibility of the previously studied twisting forces, the reverse process (untwisting) is more difficult to achieve, let alone the retwisting of the untwisted crystalline nanohelices. Herein, we report a new reciprocal effect between molecular geometry and crystal structure which triggers a twisting-untwisting-retwisting cycle for tri-cobalt salicylate hydroxide hexahydrate. The twisting force stems from competition between the condensation reaction and stacking process, different from the previously reported twisting mechanisms. The resulting distinct nanohelices give rise to unusual structure elasticity, as reflected in the reversible change of crystal lattice parameters and the mutual transformation between the nanowires and nanohelices. This study proposes a fresh concept for designing reversible processes and brings a new perspective in crystallography.
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INORGANIC CHEMISTRY
·
2023
·
IF 4.6
Shaokang Su,Wei Zhang,Ying Xie,Lihong Qi,Song Wang,Limin An,Kai Pan
Cobalt phosphide has been widely used in various catalytic reactions due to its excellent catalytic activity and stability. In contrast to the conventional synthesis of Co2P nanorods using expensive and toxic trioctylphosphine (TOP), this study employs a dual-ligand strategy to prepare iron-atom-doped monodisperse Co2P nanorods. The strategy involves the use of triphenylphosphite (TPOP) as a cost-effective and relatively less toxic strong ligand, alongside hexadecylamine (HDA) as a weaker ligand. The resultant atom-doped Co2P nanorods exhibited a large aspect ratio, providing a plentiful supply of active sites for electrocatalytic hydrogen evolution. In both alkaline and acidic electrolytes, achieving a current density of 10 mA cm–2 required overpotentials of 91 and 141 mV, respectively, with the optimal Co:Fe molar ratio of 1:0.2. The introduction of Fe atoms through doping increased the electron density at the Co atom sites, thereby enhancing H adsorption. This research offers a cost-effective and relatively low-toxicity method for the controlled fabrication of monodisperse transition-metal phosphide nanorods, enabling efficient catalytic reactions.
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JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Chenglong Xie,Xinxin Zhang,Haitao Yu,Ying Xie
Designing efficient, stable, and inexpensive catalysts for water splitting was critical for efficient, sustainable energy conversion. Here, a one-pot hot-colloidal route was adopted to synthesize the mono-dispersed NiCoP catalyst with a particle size of∼5.0 nm. To further improve the structural stability and electronic conductivity of the catalysts, carbon nanotubes (CNTs) were introduced. The theoretical calculations suggested that a synergistic effect between Ni and Co in the NiCoP catalyst not only leads to an obvious charge redistribution but also facilitates the electron transfer from the surface to the reactant intermediates, being responsible for the optimal ΔG H* of the catalyst. As a result, NiCoP/CNTs exhibited good HER performance both in acidic and alkaline electrolytes . The overpotentials under alkaline and acidic electrolytes were 110 mV and114 mV at a current density of 10 mA cm −2 , respectively. In comparison with pristine Ni 2 P(Co 2 P), the overpotential of NiCoP/CNTs in acidic and alkaline electrolytes was reduced by 50(24) and 62(30) mV at the current density of 10 mA cm −2 . Even at the current densities of 50 and 200 mA cm −2 , NiCoP/CNTs still retains a much lower overpotential than other samples. Our results revealed the important roles of the synergistic effect between the transition metals and the interaction between CNTs and the phosphides, which provides some useful information for the design and optimization of relevant HER catalysts.
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CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Jing Sun,Xiaowei Li,Yuhong Huang,Guiling Luo,Duanjian Tao,Jiangtao Yu,Linlin Chen,Yanhong Chao,Wenshuai Zhu
Extraction of lithium from liquid lithium resources has become a popular research field, among which H 2 TiO 3 material has great application potential. In this work, we further explored the correlation that the hydrophilicity of H 2 TiO 3 with its adsorption performance based on the existing work. The double surfactants method was used to regulate the morphology and hydrophilic functional groups of the surface to regulate the material hydrophilia and prepare nano-sized lithium ion sieve. The effect of surfactant and preparation method on the hydrophilicity and adsorption properties of the materials were investigated. The results show that the synthesized lithium ion sieve H 2 TiO 3 -4 (HTO-4) has excellent hydrophilicity and adsorption performance reflected with the maximum adsorption capacity of 56.03 mg·g −1 . Meanwhile, the adsorption capacity loss of the material is only 3.8 % after five cycles, which shows a satisfactory cyclic stability.
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