COLLOIDS AND SURFACES B-BIOINTERFACES
·
2024
·
IF 5.4
Chen Liu,Wanchun Du,Liang Zhang,Jiacheng Wang
Curcumin (Cur) is a natural polyphenol that is one of the most valuable natural products. However, its use as a functional food is limited by low water solubility, chemical instability and poor bioavailability. In this study, a supramolecular co-assembly strategy was used to construct an oleanolic acid-curcumin (OLA-Cur) co-assembly composite nano-slow-release treatment system. As a co-assembled compound, OLA is a widely present pentacyclic triterpenoid compound with multiple biological activities in the plant kingdom, which is expected to jointly alleviate the damaging effects of papain-induced mouse osteoarthritis model. The OLA-Cur NPs shows the solid core-shell structure, which can effectively improve the water solubility of Cur and OLA, and has good stability and sustained release characteristics. The analysis results show that the two compounds are mainly assembled through hydrogen bonding interactions, hydrophobic interactions, and π - π stacking interactions. The OLA-Cur NPs can inhibit the release of pro-inflammatory cytokines TNF-α, IL-6, and IL-1β induced by LPS in RAW264.7 mouse macrophages, promote the secretion of anti-inflammatory cytokine IL-10, and improve the oxidative stress index of hydrogen peroxide induced human rheumatoid arthritis synovial fibroblasts. In addition, it has a certain improvement effect on cartilage and subchondral bone damage in mouse osteoarthritis models. These findings suggest that constructing co-assembled composite nanoparticles based on pure natural compounds may break through the limitations of a variety of important nutritional ingredients in functional foods.
✓ 已验证
DOI
PubMed
高影响因子
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 1.7
Al-Khazaal Abdulaal Zuhayr,Khalid Rimsha,Raza Saqlain,Ghias Warda,Bhatti Nadia,Abid Amin,Tan Bien,Masood Hafiz Tariq,Iqbal Javed
Hypercrosslinked polymers (HCPs) show a scalable family of porous materials that are ideal for post-combustion CO 2 capture. This study reports two HCPs based on 4-bromoaniline (HCP-BA-A and HCP-BA-B), synthesized via FeCl₃-catalyzed Friedel–Crafts alkylation, which produce durable networks featuring hierarchical micro and mesoporosity. The material’s architecture and morphology are verified through FTIR, SEM, and TEM, while N 2 adsorption–desorption isotherms support the porous structure. These HCPs achieve BET surface areas (919.08 m 2 g⁻ 1 for HCP-BA-A; 753.42 m 2 g⁻ 1 for HCP-BA-B), good CO₂ uptakes (HCP-BA-A: 4.24 mmol g⁻ 1 at 273 K/1 bar, 2.82 mmol g⁻ 1 at 298 K/1 bar; HCP-BA-B: 3.06 mmol g⁻ 1 at 273 K/1 bar, 1.98 mmol g⁻ 1 at 298 K/1 bar), low isosteric heats of adsorption (28–32 kJ mol⁻ 1 ), and excellent cyclability (> 95% retention after multiple cycles). The kinetics follow a pseudo-1st order model, indicating rapid, surface-dominated uptake, and the adsorption isotherms most closely match the Langmuir–Freundlich model, reflecting heterogeneous surface energies. These HCPs outperform a variety of conventional porous sorbents because of inexpensive synthesis from accessible aromatic compound, straightforward scalability and enhanced hierarchical porosity. Graphical abstract
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2021
·
IF 4.539
Xu Ouyang,Lan Zhou,Xinliang Xu,Zhangyan Yang,Lei Wang,Lizhe Lu,Guojin Liu,Guoqing Zhang
In order to improve the encapsulation efficiency and shell properties of PMMA capsules, poly(MMA-co-TMPTA)/fragrance microcapsules were fabricated by in-situ polymerization with Trimethylolpropane Triacrylate (TMPTA) as the co-monomer. The poly (MMA-co-TMPTA)/fragrance microcapsules were characterized by scanning electron microscopy (SEM), thermogravimetric analyzer (TGA), pyrolysis gas chromatography-mass spectrometer (PGC-MS) and electronic nose (PEN-3). The results indicate that the poly(MMA-co-TMPTA)/fragrance microcapsules present pomegranate shape with rough and sunk surface and have the particle size in the range of 10−20 μm. poly(MMA-co-TMPTA)/fragrance microcapsules has good thermal stability, high encapsulation efficiency of 91.6 % and good slow-release property, and the fragrance on the fabric can be retained for more than 3 months.
✓ 已验证
DOI
高影响因子
ChemNanoMat
·
2021
·Vol. 7
·期 8
·906-909
·
IF 3.154
Jin Yu,Yang Cao,Qian Liu,Yonglan Luo,Yang Liu,Xifeng Shi,Abdullah M. Asiri,Tingshuai Li,Xuping Sun
It's highly desirable to devise and develop non-precious metal catalysts for efficient water oxidation catalysis in alkaline solution. Herein, we report Co-MOF nanosheet arrays grown on the three dimensional conductive nickel foam (Co-MOF/NF) through a hydro-thermal process for efficient alkaline oxygen evolution electrocatalysis. Such catalyst displays an excellent electrochemical performance by achieving an overpotential of 290 mV at 20 mA cm −2 in 1.0 M KOH. Besides, it possesses both a good electrochemical stability and a high turnover frequency of 0.14 s −1 at the overpotential of 400 mV.
✓ 已验证
DOI
高影响因子
Materials Research Express
·
2021
·Vol. 8
·期 2
·025001
·
IF 1.62
Zeyang Luo,Huan Wang,Yuxin Ma,Guodong Zhang,Duanting Yan,Xinyu Bai,Dejun Wang,Runru Liu
In this study, a promising electrolyte material Bi0.76Lu0.16Ti0.08O1.5+δ (abbreviated as '8T16LSB') with high oxygen ion conductivity was obtained by co-doping with Lu2O3 and TiO2 into Bi2O3. The phase composition, microstructure, and conductivity of TLSB ceramics were respectively investigated by x-ray diffraction, scanning electron microscopy (SEM), and electrochemical impedance spectroscopy (EIS). XRD results exhibited that the sintered TLSB ceramics with an unchanged total doping concentration of 24 mol.% existed as a cubic fluorite structure. SEM results showed that the TLSB pellets were relatively dense. The relationship between temperature and conductivity showed that the 8T16LSB ceramic exhibited the highest conductivity of 0.56 S cm−1 at 700 °C, which was higher than the value of 0.37 S cm−1 for the representative single-doping Er0.4Bi1.6O3 (abbreviated as '20ESB'). The results certified that the electrochemical performance of Bi2O3 was promoted by the co-dopant of Lu3+and Ti4+.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yihan Tang,Shuaishuai Chen,Ming Wan,Hua Li,Qingliang You,Zhenlian Chen,Zhe Peng,Deyu Wang
Ni-rich layer-structured materials are some of the most promising cathodes owing to their attractive reversible capacity and cost-effectiveness. When the Ni content is increased to 90% and higher, mechanical deterioration becomes serious and leads to accelerated cyclic degradation, since removable Li+ is ∼0.85, accompanied by large lattice variation during operation. Here, we investigate the influences of Ti4+ bulky substitution, Nb5+ surface treatment, and their coutilization on the behavior of LiNi0.925Co0.065Mn0.01O2 (NCM92). In contrast to the limited positive effects of monousage, the coutilization of Ti4+ and Nb5+ obviously suppresses particles’ pulverization, relying on their synergistic effects of the shape of lattice variation and the protection of a tough shell layer. As a result, Ti & Nb-LiNi0.925Co0.065Mn0.01O2 (TiNb-NCM92) presents the best capacity retention, as high as 90.2% after 300 cycles, much higher than NCM92 (49.0%), Ti-NCM92 (76.3%), and Nb-NCM92 (72.4%). Our approaches demonstrate that the serious mechanical challenges of ultrahigh nickel cathodes could be alleviated by various remedies coutilized together.
✓ 已验证
DOI
高影响因子
Current Drug Delivery
·
2024
·
IF 2.8
Jiangtao Su,Xue Chen,Fan Ye,Chuchu Liu,Jiahao Liang,Xuejun Zhang,Xiaoxia Guo
Background: Multidrug resistance (MDR) is a key challenge in clinical chemotherapy. The combination of drugs can effectively reverse multi-drug resistance. Objective: In this study, doxorubicin (DOX) was capsulated into nanoparticles formed by an amphiphilic PEGylated-poly (α-lipoic acid)-methanamide analogue of celastrol (mPEG-PαLA-CEN) prodrug polymer. CEN was linked to the branched chain of poly (α-lipoic acid) by forming ester bonds. DOX was physically trapped inside the nanoparticles via electrostatic interaction. Both drugs can be simultaneously released in response to low pH and high GSH in order to overcome DOX resistance. Methods: The chemical structure of the mPEG-PαLA-CEN-DOX NPs was confirmed through 1H NMR, FT-IR spectroscopy, UV-Vis spectrum, DLS, and TEM. Drug-loading content, efficacy, and drug release were measured using HPLC. Cell toxicity was examined using an MTT assay. Results: CEN/DOX-loaded nanoparticles were found to have spherical shapes with diameters of around 229.7 nm. The NPs exhibited high biocompatibility and released 92% DOX and 71.8% CEN in response to low pH and high GSH of tumor microenvironments. As dual drug-loaded nanoparticles, the efficacy of mPEG-PαLA-CEN-DOX NPs against tumor cell lines in vitro was enhanced for both MCF-7 and MCF-7/ADR compared to free DOX. Compared to free DOX, the IC50 of mPEG-PαLA-CEN-DOX NPs reduced from 46.10 μM to 8.36 μM for the MCF-7/ADR cell line. Conclusion: In conclusion, this study demonstrated that PEGylated poly (α-lipoic acid)-CEN copolymers can be used not only as biocompatible, stimulation-responsive anticancer drug nanocarriers but also as chemosensitizers to overcome multidrug resistance, which provide a theoretical base for clinical application of CEN/DOX nanodrug.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2024
·
IF 5.8
Danning He,Zhongyang Wang,Shuangqian Ma,Lan Yang,Liping Tong,Xiao Zhou,Tongxiang Fan
Broadband absorber materials with high solar absorptivity and infrared emissivity are conducive to high-efficient and cost-effective heating technology in the civil and industrial field. The BaTi 1- x Co x O 3 ceramics are prepared by sol-gel method, showing mixed tetragonal/hexagonal phases. Co doping slightly reduces the phase transition temperature of BaTiO 3 . Meanwhile, BaTi 1- x Co x O 3 ceramics present a composite Mott/charge transform band nature and the Co-3d impurity level and oxygen vacancies level lead to a narrowed bandgap. The enhancement of the absorption induced by free carriers, impurity level and lattice vibration promote the UV-Vis-NIR absorption and mid-infrared radiation of BaTi 1- x Co x O 3 ceramics. In conclusion, the optimized BaTi 0.95 Co 0.05 O 3 ceramic achieves a high solar absorptivity (0.88) in 0.25–2.5 µm and a high infrared emissivity (0.83) in 8–14 µm. The radiative performance presents good temperature stability, unaffected by phase structure and lattice thermal expansion, which provides prospective applications in solar energy conversion and infrared radiation heating.
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2018
·
IF 5.116
Anni Li,Congwei Wang,Huinian Zhang,Zheng Zhao,Jie Wang,Miao Cheng,Huifang Zhao,Junying Wang,Minghong Wu,Junzhong Wang
Electrochemical water splitting by a robust electrocatalyst plays a key role in hydrogen production for clean and sustainable energy. In this work, a kind of nanohybrid of graphene supported atomic Co and nanocrystalline Co 3 O 4 was synthesized through electrochemical synthesis of atomic cobalt onto graphene using 1-Butyl-3-methylimidzolium tetrachlorocobalt [(BMIm) 2 CoCl 4 ] as an electrolyte. By virtue of the synergistic effect of single-cobalt atoms and Co 3 O 4 nanoparticles , the nanohybrid presents enhanced electrocatalytic performance toward the oxygen evolution reaction. The low onset potential is 0.49 V (vs. Ag/AgCl) and the overpotential of the current density of 10 mA cm −2 is 0.30 V in aqueous solution, which is comparable to commercial RuO 2 . Moreover, the nanohybrid exhibits remarkably long stability for over 45 h at a fixed potential of 0.6 V.
✓ 已验证
DOI
高影响因子
JOURNAL OF CATALYSIS
·
2020
·
IF 7.888
Jian Zhang,Yazhe Zhang,Jieqiong Zhao,Zhe An,Yanru Zhu,Xin Shu,Hongyan Song,Xu Xiang,Xiaodan Ma,Jing He
Oxidative carbonylation has attracted broad interest from both academia and industry in recent years. Oxycarbonylation of ethanol to diethyl carbonate (DEC) has been of great challenge due to the difficulty in the simultaneous activation of ethanol and CO. This work reports a heterogeneous Cu-Pd pair catalysis for simultaneous activation of ethanol and CO, affording a selectivity of 85.4% to DEC and a space–time yield (STY) of up to 207 mg∙g −1 ∙h −1 . Well distributed Cu-Pd pair affords more Cu (I) sites, promoting CO activation and the followed insertion to adsorbed ethanol. Further increasing ratio of Cu (I) species via the pre-treatment of catalyst with CO and ethanol promotes simultaneously the activation of ethanol and CO, affording a STY of 325 mg∙g −1 ∙h −1 of DEC.
✓ 已验证
DOI
高影响因子
Nano Research
·
2012
·Vol. 5
·期 7
·494-503
·
IF 6.97
Yang Tianshe,Liu Qian,Pu Shouzhi,Dong Zesheng,Huang Chunhui,Li Fuyou
Photoswitchable polymer nanoparticles (ps-PNPs) have been constructed by emulsion polymerization through embedding an iridium(III) complex, [Ir(bt) 2 (pic)](bt = phenylbenzothiazole, pic = picolinate), as a fluorophore and a diarylethene derivative (DTE) as a photochrome. The ps-PNPs show reversible luminescence modulation with DTE switching using UV light in aqueous solution and even in living cells. Such luminescent modulation only occurred in polymer nanoparticles and not in a simple mixed solution with low concentrations of [Ir(bt) 2 (pic)] and DTE. The ps-PNPs displayed good cellular uptake and fast intracellular luminescence modulation by photoswitching, indicating the nanoparticles could be developed as photoswitchable luminescent probes for a diversity of bioimaging applications.
✓ 已验证
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Hao Zou,Lei Liao,Gaoling Liang,Wanjiang You,Shilong Song,Ning Pan,Hao Lei,Weimin Li,Xiaoqiang Wang
The silver-based materials are widely used in nuclear fuel reprocessing plant for iodine capture. They are powerful but expensive. In this paper, the mercury-bismuth co-modified silica gel (Hg-Bi-Silica gel) was studied and tried to displace the silver-based materials. Firstly, the Hg-Bi-Silica gel was prepared through activating, impregnating and drying. Mercury and bismuth existed as Hg(OH)NO 3 and [Bi 6 O 5 (OH) 3 ](NO 3 ) 5 ·2H 2 O in Hg-Bi-Silica gel, respectively. Secondly, the iodine adsorption performances of Hg-Bi-Silica gel were investigated. The static trapping capacity of I 2 and CH 3 I was 209.1 ± 1.7 mg/g and 151.0 ± 6.9 mg/g, respectively, which was better than that of the commercial silver-based materials (148.6 ± 3.5 mg/g and 132.7 ± 3.0 mg/g). The dynamic adsorption efficiency of CH 3 131/127 I was 99.996 %, which was closed to that of the commercial silver-based materials (99.990 %). Thirdly, the possible mechanism for iodine capture in the Hg-Bi-Silica gel system was proposed. I 2 was captured by Hg-Bi-Silica gel mainly in the form of HgI 2 and Hg(IO 3 ) 2 , however, CH 3 I was captured by Hg-Bi-Silica gel mainly in the form of HgI 2 . Furthermore, [Bi 6 O 5 (OH) 3 ](NO 3 ) 5 ·2H 2 O was cooperated with Hg(OH)NO 3 on capturing iodine. Finally, the stabilities of Hg-Bi-Silica gel were evaluated. The Hg-Bi-Silica gel showed excellent thermal stability, NO x -corrosion resistance and irradiation resistance. In summary, the more cost-effective Hg-Bi-Silica gel was a potential effective substitution of silver-based materials.
✓ 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）