ACS Applied Polymer Materials
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2023
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IF 5
Jizhen Huang,Zhaoqing Lu,Jiaoyang Li,Fengfeng Jia,Yafang Wang,Li Hua
The public health and water ecosystems are affected by industrial wastewater, resulting in water pollution including heavy metal ions and organic matter, so that adsorbents with multiple adsorption effects are developed to achieve efficient adsorption. In this work, the porous zeolitic imidazolate framework-8 (ZIF-8) was assembled onto cellulose nanofiber (CNF)/poly(vinyl alcohol) (PVA)/aramid nanofiber (ANF) composites and the ZIF-8@CNF/PVA/ANF (ZIF-8@CPA) composite aerogel was designed and fabricated. The composite aerogel has good physical properties and optimal adsorption performance assembled with 20% ZIF-8 content. The ZIF8-20@CPA composite aerogel has high porosity of about 99.62%; the specific surface area is 120.53 m2/g, and pore size is as low as 11.82 μm with a lower volume shrinkage of 1.31%. The adsorption capacity of Cr6+ and rhodamine B about lightweight ZIF8-20@CPA composite aerogels reached 231 mg/g and 201 mg/g, respectively. Due to the 3D porous structure, electrostatic interaction, and ion synergism generated by its assembly with ZIF-8, the composite aerogels have good adsorption performance for heavy metal ions and conform to the relationship of a pseudo-second-order kinetic model. Thus, this study suggests a route to fulfill the multiple adsorbents.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2023
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IF 6.1
Yulin Zhao,Haoyan Huang,Ning Lv,Chunyan Huang,Huili Chen,Han Xing,Chaorui Guo,Ning Li,Di Zhao,Xijing Chen,Yongjie Zhang
Genipin (GP), the reactive metabolite of geniposide (GE), is responsible for GE-induced hepatotoxicity. As a potential detoxification pathway, the inactivation of GP by glutathione S-transferases (GSTs) has not yet been characterized. In this study, the thiol-GSH conjugates of GP, M532-1 and M532-2 were first identified and the catalytic activities of GSTs were investigated both in vitro and in vivo. GSTA1-1 and GSTA4-4 showed high activity in the formation of both thiol-GSH conjugates, whereas GSTA4-4 specifically catalyzed M532-2 formation in vitro. The active GST isoforms protect against alkylation of N-acetylcysteine (NAC), a classic model nucleophile. GST inhibition attenuated M532-1 formation in rat bile, confirming the in vivo catalytic role of GSTs. In conclusion, this study demonstrated the inactivation of GP by GSTs and implied that interindividual variability of GSTs may be a risk factor for susceptibility to GE-induced hepatotoxicity.
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MICROCHEMICAL JOURNAL
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2022
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IF 5.304
Jinjie Xu,Yuehong Pang,Zhuying Yan,Xiaofang Shen
Glyphosate, a widely used herbicide, is prone to residue in the environment that may cause harm to humans. In this work, titanium ion-modified melamine foams (MF/PDA/Ti 4+ ) were prepared as sorbents to achieve rapid extraction of glyphosate by pipette-tip solid-phase extraction (PTSPE). The MF/PDA/Ti 4+ was characterized by SEM, EDS, XPS, and TGA, and its adsorption properties were evaluated by adsorption kinetics and isotherm experiments. The porous structure and good mechanical properties of MF made the MF/PDA/Ti 4+ fill into the pipette-tip easily and could achieve low back pressure. The developed PTSPE method showcased short extraction time (<2 min) for glyphosate and the limits of detection (LOD, 3σ/k) was 4.9 μg/L. It was applied in aqueous samples (tap water, lake water, tea drink, and orange juice) with recoveries ranging from 82.8 % to 108.2 % and the relative standard deviation (RSD, n = 3) was less than 7.7 %, demonstrating broad perspectives on the extraction of glyphosate from the aquatic and terrestrial environment.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
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IF 9.9
Long Ye,Na Lu,Bao Zhang,Haozhe Qin,Chunhui Wang,Xing Ou
Though numerous framework structures have been constructed to strengthen the reaction kinetics and durability, the inevitable generation of polysulfide dissolution during conversion-process can cause irreparable destruction to ion-channel and crystal structure integrality, which has become a huge obstacle to the application of metal-sulfide in potassium-ion batteries. Herein, the quantum dot structure with catalytic conversion capability is synchronously introduced into the design of FeS 2 anode materials to heighten its K + -storage performance. The constructed quantum dot structure anchored by the graphene with space-confinement effect can shorten the ion diffusion path and enlarge the active area, thus accelerating the K + -ions transmission kinetics and absorption action, respectively. The intermediate phase of formed Fe-nanoclusters possesses high-active catalysis ability, which can effectively suppress the polysulfide shuttle combined with the enhanced absorption effect, fully guaranteeing the structure stability and cycling reversibility. Predictably, the fabricated quantum dot FeS 2 can express a prominent advantage in rapid potassiation/depotassiation processes (518.1 mAh g −1 , 10 A g −1 ) and a superior cycling lifespan with gratifying reversible capacity at superhigh rate (177.7 mAh g −1 , 9000 cycles, 5 A g −1 ). Therefore, engineering quantum dot structure with self-induced catalysis action for detrimental polysulfide is an achievable strategy to implement high-performance sulfide anode materials for K-ions accommodation.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2023
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IF 9.5
Yaxin Wang,Can Yuan,Ke Zhou,Qilin Gu,Wenheng Jing,Zhaoxiang Zhong,Weihong Xing
Given that the membrane emulsification process involves the interaction between the membrane surfaces and two different phases (i.e., oil and water), separately manipulating the wettability of each surface would be crucial to achieve the high emulsification efficiency. Herein, the Janus silicon carbide (SiC) membranes were designed and prepared by using an emerging reactive sintering method and the subsequent chemical grafting modification on one of the hydrophilic surfaces. The surface wettability was selectively controlled by using hexadecyltrimethoxysilane (HDTMS) and 1H, 1H, 2H, 2H-perfluorooctyltrichlorosilane (FOTS) as the hydrophobic or amphiphobic modifiers, respectively. Meanwhile, the modified side of Janus SiC membranes showed super-hydrophobicity under oil. It was found that the hydrophobic surface can inhibit the spread of water on membrane surface and the oleophobic surface can reduce the pollution of the membrane, which both affected the membrane emulsification performance. The water-in-oil (W/O) emulsions with mean water droplet size of 1.26–1.57 μm can be prepared using amphiphobic-hydrophilic Janus membranes at a high emulsification flux (1910 L·m −2 ·h −1 ). Importantly, the pure water permeance only declined 15.6% of the original value after three times of membrane emulsification. Moreover, the polluted membranes can be easily and effectively regenerated by ultrasonic cleaning in ethanol with a flux recovery ratio of 95.8%. Therefore, the amphiphobic Janus SiC membranes showing improved anti-fouling ability can be effectively utilized in the emulsification of high-viscosity oil.
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高影响因子
Materials Today Sustainability
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2022
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IF 7.244
Wenhua Li,Shule Zhang,Fengye Guo,Run Yu,Qianqiao Chen,Qin Zhong
Designing and constructing a delicate structure is an effective strategy to ensure the electrocatalytic stability of catalysts with excellent performance in quantum dot sensitized solar cells (QDSSCs) but remains challenging. Herein, ultrafine Co 4 N nanoparticles are encapsulated in a fish-scale-like N-doped carbon framework (Co 4 N@NC) in the form of Co–N–C bonds via a facile three-step method, including precursor construction, calcined carbonization and nitridation process. Notably, in the exquisite precursor construction process , the gelatinous chitosan induced by citric acid effectively bonds Co(Ⅱ) ions, and a fish-scale-like structure is designed under the action of template F127. The construction of this composite structure can increase contact with the electrolyte, favor electron conduction between particles, and improve the stability of the catalyst, thereby dramatically boosting the polysulfide reduction performance for QDSSCs. Co 4 N@NC is employed as the counter electrode (CE) of QDSSCs for the first time, its charge transfer resistance ( R ct ) is as low as 1.12Ω, and the power conversion efficiency of CdS/CdSe QDSSC reaches 5.54%, confirming extraordinary reduction activity towards S n 2− . Especially, compared with Co 4 N CE, Co 4 N@NC CE has better tolerance to polysulfide electrolytes and shows excellent electrochemical stability. This work provides a new strategy to improve the performance and stability of Co 4 N for the polysulfide reduction reaction.
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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2022
·Vol. 23
·期 23
·14831
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IF 6.208
Aiyun Yang,Shen Li,Yan Zhang,Xiuwei Wang,Zhen Guan,Zhiqiang Zhu,Yingchao Liang,Lijiao Zhao,Jianhua Wang
Neural-tube defects (NTDs) are one type of the most serious birth defects. Studies have shown that inositol deficiency is closely related to the occurrence of NTDs. Bone morphogenetic protein (BMP)-mediated Smad signaling pathways have been implicated in neurogenesis and neural-tube closure. However, the role of the BMP/Smad pathway in inositol-deficiency-induced NTDs remains unclear. Inositol-deficiency models in C57 mice and mouse neural stem cells (mNSCs) were induced with Li2CO3treatment or inositol withdrawal. The role of the BMP/Smad pathway in the regulation of cell proliferation and the development of NTDs was determined utilizing qRT-PCR, HE staining, Western blot, immunostaining, MTT assay, EdU staining, and flow cytometry. The intraperitoneal injection of Li2CO3at Embryonic Day 7.5 induced the occurrence of NTDs. The mRNA levels ofBmp2,Bmp4,Smad1,Smad5,Smad8andRunx2, the phosphorylation of Smad1/5/8, and the nuclear translocation of Runx2 were significantly increased in NTD embryonic brain tissues and mNSCs exposed to Li2CO3or an inositol-free medium, which were suppressed by BMP receptor selective inhibitor LDN-193189. The Li2CO3-induced phosphorylation of Smad1/5/8 was inhibited by inositol supplementation. Cell proliferation was significantly promoted by Li2CO3exposure or the absence of inositol in mNSCs, which was reversed by LDN-193189. These results suggest that the activation of the BMP/Smad signaling pathway might play an important role in the development of NTDs induced by maternal Li2CO3exposure via inositol deficiency.Keywords:inositol;BMP signaling;neural-tube defects;neural stem cell;proliferation
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CHEMICAL ENGINEERING JOURNAL
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2023
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IF 15.1
Hai Liu,Guoying Tan,Mengxuan Li,Zhuang Zhang,Marshet Getaye Sendeku,Yaping Li,Yun Kuang,Xiaoming Sun
Hydrogen evolution reaction is an important half-cell reaction in electrocatalytic water splitting process, which is an efficient way to store renewable energy into hydrogen fuel. However, grid scale water splitting always require high current densities up to amperes per square centimeter, which results change in local pH on the electrode surface, leading to instability risk of cathodic catalyst. Herein, a single atomic Ru doped WO 3 catalyst was fabricated, which exhibit excellent hydrogen evolution reaction (HER) activity with only 28.0, 17.6, and 83.0 mV in acidic, alkaline, and neutral media respectively as well as robust stability for 100 h at ampere-level current density is reported. Synchrotron radiation and density functional theory (DFT) calculations revealed that the defective oxygen and strong electron transfer from W sites to Ru not only achieved moderate H adsorption but also protected Ru sites from agglomeration, leading to superior HER activity and stability at industrial current density.
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CHEMOSPHERE
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2022
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IF 8.943
Lei Pan,Xiuping He,Junhui Chen,Jinhui Jeanne Huang,Yuning Wang,Shengkang Liang,Baodong Wang
Paralytic shellfish toxins (PSTs) producing algae are widely distributed in the global coastal aquatic environment, posing a threat to coastal ecosystem health and mariculture safety. However, the levels and potential environmental risks of PSTs frequently detected in shellfish remain largely unexplored in seawater of mariculture zones. In this study, a new method for trace detection of 13 common PSTs (<1.0 ng/L) in seawater was established based on off-line solid phase extraction (SPE) and on-line SPE-liquid chromatography-tandem mass spectrometry (on-line SPE-LC-MS/MS), and a systematic investigation of PSTs in seawater of the Laizhou Bay, a typical aquaculture bay in China, was conducted to understand their pollution status, environmental impact factors and ecological risks for the first time. Eleven PSTs were detected in the seawater of Laizhou Bay with total concentrations ranging from 0.75 to 349.47 ng/L (mean, 176.27 ng/L), which indicates the rich diversity of PSTs in the mariculture bay and demonstrates the reliability of the proposed analytical method. C1, C2, GTX2, GTX3, dc GTX2, and dc GTX3 were found to be the predominant PSTs, which refreshed the knowledge of PST contamination in the coastal aquatic environment. PST levels in seawater exhibited the highest levels in the southeastern mouth of Laizhou Bay and decreased toward the inner bay. Correlation analyses showed that climatic factors , nutrient status and hydrological conditions had significant effects on the distribution of PST in mariculture bay. Preliminary environmental risk assessments revealed that aquatic organisms throughout the waters of Laizhou Bay are at risk of chronic PST toxicity. These findings imply that the risk of PST in seawater of mariculture bay has previously been grossly underestimated, and that the coastal aquatic environment in North China and even the world may be at more serious risk of PST pollution, which should be taken seriously.
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Journal of Analysis and Testing
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2023
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IF 4.7
Zhang Xianfen,Wang Wenxian,Guan Lijiao,Chen Huajie,Li Dai,Zhang Lipeng,Huang Saipeng
Trace ferric ion (Fe 3+ ) detection has attracted increasing attention as an essential and indispensable role in many physiological and pathological research. The green-emitting carbon quantum dots (Green-CQDs) were obtained through a green and facile one-step hydrothermal method for the specific recognition and trace detection of Fe 3+ in this paper. The optimal excitation and emission wavelengths of the CQDs were 395 nm and 490 nm, respectively. The stokes shift was up to 95 nm, which can effectively reduce the background fluorescence interference. In addition, it also exhibited good water solubility, stability, and high biocompatibility. The fluorescence intensity of Green-CQDs was linearly related to the concentration of Fe 3+ (range of 0–80 μmol/L), and the detection limit was as low as 59 nmol/L. These good properties were favorable and successful for Fe 3+ detection in tap water, human serum samples and living cells. In addition, a fluorescence visual test paper (FP@CQDs) was prepared utilizing filter paper as carrier, which can quickly identify Fe 3+ in real time, and is suitable for the visualization analysis of Fe 3+ in environment. As an efficient nanoprobe, the Green-CQDs held great promise and bright prospects in practical application in prevention and early clinical diagnosis of Fe 3+ -associated diseases.
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FOOD HYDROCOLLOIDS
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2023
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IF 10.7
Yuqin Huang,Zerong Lu,Feitong Liu,Jonathan Lane,Juchun Chen,Xiong Fu,Qiang Huang,Ruibiao Hu,Bin Zhang
Encapsulation is usually adapted to improve probiotic viability under adverse environmental conditions, and used to ensure adequate amount of probiotics reach the distal gastrointestinal tract and achieve probiotic action. In the present study, sub-species of Bifidobacterium were encapsulated with pectin or alginate by an emulsification/internal gelation method. Bovine milk osteopontin (OPN) was used as an excipient with potential to improve the protection of the probiotics during processing and/or gastrointestinal digestion. Here, we reported that the use of OPN significantly improved probiotic viability during freeze drying and simulated infant gastrointestinal digestion. The viability of Bifidobacterium bifidum R0071 and Bifidobacterium breve M-16V loaded in pectin-based freeze-dried microcapsules with 0.5% OPN addition remained at over 10 6 CFU·g −1 after simulated infant digestion. In comparison, the microcapsules without OPN had a probiotic viability of only 10 3 CFU·g −1 . The protective effect of OPN was proven to be dose dependent. For example, the B. bifidum R0071 viability was 6.1 log CFU·g −1 after the gastrointestinal digestion for the pectin-based microencapsulation without OPN addition, while the value remained at 8.4 log CFU·g −1 when OPN concentration reached 5%. In this study, we also demonstrated that extracellular calcium ions could chelate with OPN molecules which could be attributed to preventing damage of the probiotic cell wall and the improved protective effective of microencapsulation. Overall, these results provide new insight into the use of OPN as a microencapsulation excipient to promote probiotic viability and its potential future application in functional foods such as infant formula with enhanced gut health.
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MATERIALS & DESIGN
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2023
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IF 8.4
Xuan Pei,Linnan Wang,Lina Wu,Haoyuan Lei,Zhimou Zeng,Lei Wang,Changchun Zhou,Xi Yang,Yueming Song,Yujiang Fan
3D printed porous titanium cage is believed with physiology mechanical properties and biocompatibility for orthopedic usage. Typical split cage design with a grafting window and infilled bone graft has raised a lot of questions. In this research, a modified hydrothermal approach, employing chelated calcium to enhance the medium stability and increase the generated amount, is proposed to construct bioactive hydroxyapatite coating inside the porous structure of 3D printed porous titanium cage. The in vitro and transcriptomic results indicated the hydroxyapatite enhanced the cells physical sensing system, therefore enhanced the osteogenesis inside titanium/hydroxyapatite cage. The in vivo goat spinal fusion experiment indicated the integrative titanium/hydroxyapatite cage, compared with typical split cage/graft cage, showed better bone tissue ingrowth and spinal fusion ability. This research provides a promising hydroxyapatite coating strategy for complex porous structure and revealed the potential advantage of integrative titanium/hydroxyapatite intervertebral cage design.
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