RARE METALS
·
2023
·
IF 8.8
Xing Shun,Wang Dong-Hui,Zhang Hai-Feng,Liu Li-Dan,Li Cheng-Ce,Wei Chao,Liu Jun-Yu,Ge Nai-Jian,Liu Xuan-Yong
Malignant obstruction makes gallbladder cancer have a high mortality rate. Nickel–titanium alloy (nitinol) stents are commonly used as a local intervention to maximize patient survival time, but the stents lack antitumor and antibacterial capacity and are vulnerable to secondary obstruction. Arsenic-based drugs show good therapeutic promise against gallbladder cancer. To meet clinical needs, the layered double hydroxides (LDHs) film is constructed on the nitinol, whose arsenite loading amounts rose by 60% after simple heat treatment compared with the conventional anion-exchange strategy. In addition, calcination promotes the dissolution of nickel ions from the LDHs lattice, resulting in a powerful synergistic killing effect on tumor cells together with the released arsenic. More importantly, the calcined arsenic-loaded LDHs are sensitive to the acidic microenvironment of tumor tissues, which presents a much lower arsenic and nickel release amount in the normal tissues, guaranteeing its biosafety. Meanwhile, the vertically sharp LDHs nanosheets can synergize with arsenic to achieve effective physical cleavage and chemical killing of adherent and planktonic bacteria. In short, we attempt to use arsenic drugs for local interventions and reasonably avoid their toxic side effects, which provides a new design idea for nitinol stents applied in the treatment of gallbladder cancer. Graphical abstract
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高影响因子
Nano Research
·
2023
·
IF 9.9
He Xiaowei,Wang Tianshuai,Tian Lidong,Zhang Qiuyu
Heterostructure engineering by coupling different nanocrystals has received extensive attention because it can enhance the reaction kinetics of the anode of sodium-ion batteries (SIBs). However, constructing high-quality heterostructure anode materials through green and environmentally friendly methods remains a challenge. Herein, we have proposed a simple one-step method by recycling the electronic waste metal materials to synthesize the Cu 1.94 S/ZnS heterostructure materials. Combined with the experimental analysis and first principle calculations, we find that the synergistic effect of different components in heterostructure structures can significantly enhance the reversible capacity and rate performance of anode materials. Based on the constructed Cu 1.94 S/ZnS anode, we obtain a superior reversible capacity of 440 mAh·g −1 at 100 mA·g −1 and 335 mAh·g −1 after 3000 cycles at 2000 mA·g −1 . Our work sheds new light on designing high-rate and capacity anodes for SIBs through the greenness synthesis method.
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高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-19
·
IF 16.6
Sang Zhentao,Xu Lu,Ding Renyu,Wang Minjun,Yang Xiaoran,Li Xitan,Zhou Bingxin,Gou Kaijun,Han Yang,Liu Tingting,Chen Xuchun,Cheng Ying,Yang Huazhe,Li Heran
The oral delivery of nano-drug delivery systems (Nano-DDS) remains a challenge. Taking inspirations from viruses, here we construct core–shell mesoporous silica nanoparticles (NPs, ~80 nm) with virus-like nanospikes (VSN) to simulate viral morphology, and further modified VSN with L-alanine (CVSN) to enable chiral recognition for functional bionics. By comparing with the solid silica NPs, mesoporous silica NPs and VSN, we demonstrate the delivery advantages of CVSN on overcoming intestinal sequential barriers in both animals and human via multiple biological processes. Subsequently, we encapsulate indomethacin (IMC) into the nanopores of NPs to mimic gene package, wherein the payloads are isolated from bio-environments and exist in an amorphous form to increase their stability and solubility, while the chiral nanospikes multi-sited anchor and chiral recognize on the intestinal mucosa to enhance the penetrability and ultimately improve the oral adsorption of IMC. Encouragingly, we also prove the versatility of CVSN as oral Nano-DDS.
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PubMed
高影响因子
JOURNAL OF POLYMER RESEARCH
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2023
·Vol. 30
·期 12
·1-10
·
IF 2.8
Liu Chengyi,Du Guicai,Guo Qunqun,Li Ronggui,He Hongwei,Li Changming
Polylactic acid (PLA) is a kind of widely used, biodegradable, biomass polymer material, and the PLA fibrous material with high antibacterial efficiency has attracted more and more attention. In this article, the electrospinning (e-spinning) technique was employed to fabricate PLA nanofiber membrane and by adding the reducing natural rosmarinic acid (RosA) and graphene oxide (GO) into the e-spinning solution, it was found that RosA and GO reacted to a certain extent, which led to a stable e-spinning solution system. After carried out e-spinning, the as-prepared fiber of PLA/Rosa0.1/GO was thinner in average diameter, 520 nm, lower than those of pure PLA or PLA/RosA. The strength of the fibrous membrane was enhanced, reaching 2.4 times of pure PLA one, and its water contact angle decreased from 137° to 123°. At the same time, the as-obtained membrane of PLA/Rosa0.1/GO had high porosity (82.8%) and filtration efficiency (91.0%), with high QF value of 0.077 Pa -1 . More importantly, due to the synergy of RosA and GO, the antibacterial efficiency has been greatly improved. This electrospun nanofiber membrane has promising applications in personal protective equipment and air filtration industry.
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JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2023
·Vol. 332
·期 12
·5059-5070
·
IF 1.6
Guo Zifang,Zhang Yang,Jiao Limin,Li Yifan,Lin Zijian,Du Xiangyi,Zhao Xing,Gao Xuan,Yu Guobing,Liu Chunyu,Lin Mingzhang
The radiolytic behaviors of aqueous ammonia solutions under γ-ray irradiation were investigated, focusing on several factors, including initial ammonia concentration, absorbed dose, and H 3 BO 3 concentration. The main species including ammonia, H 2 O 2 , nitrogen oxides, and H 2 , were quantitatively analyzed. The results revealed the significant influence of the initial ammonia concentration on the radiolytic behavior of the aqueous ammonia solution. The existence of ammonia in the solution exhibited suppression of the concentrations of H 2 O 2 and O 2 . Furthermore, the radiolysis of aerated aqueous ammonia solution led to the formation of nitrogen oxides (NO 2 − and NO 3 − ). This process was driven by multiple oxidation reactions, in which O 2 and ·OH played crucial roles. Interestingly, the addition of H 3 BO 3 provided protection to ammonia during γ irradiation, while the concentration of H 2 O 2 was increased.
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JOURNAL OF POLYMERS AND THE ENVIRONMENT
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2023
·
IF 5.3
Lin Xiaoxia,Zhao Jie,Zhang Yongqi,Li Yuqi,Liao Yiqiang,Zhang Hui
Photocatalytic water treatment is an advanced and efficient technology for water purification. Among various photocatalysts, iron-based metal–organic frameworks (Fe-MOFs) are widely applied for mineralizing organic wastewater due to their excellent water stability and photocatalytic activity. However, their practical application is impeded by insufficient photocatalytic performance, irreversible collapse of the framework structure during repeated use, and difficulty in recovery. In this study, we fabricated a Graphene oxide (GO) structure-oriented NH 2 -MIL-88B(Fe)/graphene oxide/sodium alginate (NM88B/GO/SA) aerogel for the removal of dyes and antibiotics, using GO interface regulation and dual-network crosslinking methods. In this hybrid system, a NM88B/GO heterostructure was formed through the directional growth of NM88B on the surface of GO. The introduction of sodium alginate (SA) enhanced the robustness and stability of the matrix, and effectively avoided aerogel fragmentation. With 30 wt% catalyst loading, the composite aerogel exhibited excellent photocatalytic degradation performance towards high-concentration (50 ppm) tetracycline hydrochloride (TC-HCl), achieving over 99% removal rate in 150 min. It also effectively degraded methylene blue (MB) at 10–30 ppm with over 99% removal rate. Furthermore, the aerogel showed excellent shape recovery ability, stability, and reusability. After five repeated tests, it maintained over 95% degradation efficiency for both TC-HCl and MB. This advanced aerogel holds great promise as a highly efficient and reusable photocatalyst for removing antibiotics and dyes from wastewater. Graphical Abstract
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高影响因子
Nano Research
·
2023
·
IF 9.9
Wang Jiaen,Song Tianliang,Ming Wei,Yele Moxi,Chen Longfu,Zhang Hao,Zhang Xiaojuan,Liang Benliang,Wang Guangsheng
The high power density and intelligence of next-generation flexible electronic devices bring many challenges to fabricate flexible composite films with electromagnetic interference (EMI) shielding effectiveness (SE) property and excellent toughness via a simple method. Herein, inspired by the layered structure and biopolymer matrix networks in natural nacre, nacre-like layered Ti 3 C 2 T x (MXene)/aramid nanofiber (ANF) films were fabricated through sol-gel, vacuum-assisted filtration, and hot-pressing. Three-dimensional (3D) interconnected aramid nanofibers networks between adjacent layered MXene result in an ultralong strain-to-failure of the film. Even though the functional filler MXene contents are as high as 60 wt.% and 70 wt.%, the strain-to-failure of the films could reach astonishing values of 18.34% ± 1.86% and 14.43% ± 1.26%, respectively. And the tensile strength could maintain about 85 MPa. Excitingly, with such a high filler, the film can also withstand double folding and vigorous rubbing without damage, which could better adapt to a harsh application environment. The result means that this work provides a convenient way to prepare other high functional filler composite films with excellent mechanical performance. The EMI SE values could reach 45 and 52.15 dB at 60 wt.% and 70 wt.% MXene in 8.2–12.4 GHz. Meanwhile, the films have prominent Joule heating properties, high sensitivity (< 15 s), small voltage operation (0.5 V), and high operation constancy (1300 s). Therefore, nacre-inspired MXene/ANF composite films in this work have ability to apply in many areas including communication technology, military, and aerospace.
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Science China-Materials
·
2023
·Vol. 66
·期 12
·4639-4649
·
IF 8.1
Li Shuangshuang,Du Yunmei,Wang Mengmeng,Liu Jie,Li Bin,Gu Yuanxiang,Wang Lei
Nitride modification is focused on boosting reaction kinetics by optimizing the hydrogen evolution reaction (HER) pathway of nitrides. This study adopted a creative co-doping strategy of using a P-anion and a Ce-cation to construct a P,Ce-FeNi 3 N/nickel foam (NF) electrode. At an overpotential of 200 mV, the well-designed P,Ce-FeNi 3 N/NF electrode showed a current density of 340 mA cm −2 , which was twice that of the commercial Pt/C@NF electrode (174 mA cm −2 ). Theoretical calculations revealed that unlike the single Ni active site in FeNi 3 N/NF, P,Ce-FeNi 3 N/NF possessed two active sites Ni and P. As a result, reaction kinetics during the alkaline HER process was considerably optimized. Furthermore, the assembled NiFeCe-layered double hydroxides/NF‖P,Ce-FeNi 3 N/NF cell only needed a voltage of 1.537 V to achieve a high current density of 500 mA cm −2 . Overall, this study provides a new strategy for achieving superior electrocatalytic performance of nitrides by optimizing and improving reaction kinetics.
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高影响因子
Science China-Chemistry
·
2023
·
IF 9.6
Ambreen Ambreen,Zhou Yue,Gu Wanmiao,You Qing,Fang Liang,Bian Guoqing,Yan Nan,Xia Nan,Wu Zhikun
Surface thiolates play important roles in evincing the structures and properties of thiolated metal nanoclusters—one type of recently emerging inorganic-organic hybrids, and thus the thiolate substitution, especially single thiolate substitution, is highly desirable for subtly tailoring the structures and properties of metal nanoclusters. However, such a single-thiolate substituting is challenging, and its influence on the metal-metal and metal-sulfur bonds remains mysterious due to the absence of the single-thiolate-substituted structure. Here, we developed a combined method, concurrently synthesized the single-thiolate-substituted nanocluster and its parent nanocluster, and successfully resolved their structures by single crystal X-ray crystallography, which reveals that the single thiolate substitute has an obvious influence on the metal-metal and metal-sulfur bond lengths although it has no effect on the absorption profile. Interestingly, the metal-metal and metal-sulfur bonds show various thermal extensibility and even the negative thermal expansion phenomena of the Au–S bond were observed in the single-thiolate-substituted nanocluster. The bond length-related stability was also observed. Overall, this study highlights a novel synthesis method and offers novel structural insights and an in-depth structure-property correlation of thiolated metal nanoclusters.
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APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
·
2023
·
IF 3
Sun Ziyi,Zhang Gaoning,Li Xiaoru,Cui Qingqi,Gong Lili,Tian Zhenhua
This study investigated the chemical and volatile characteristics of sea buckthorn fruits from three different regions in China. The chemical composition of the volatile oil was determined by using a non-targeted gas chromatography and mass spectrometry (GC/MS) method and the differences in chemical composition among the three producing areas were compared by heatmap providing a visual basis for researchers. A total of 93 compounds were identified, including 52 compounds from the Northeast China, 51 from the Xinjiang region, and 37 from Inner Mongolia region. Then, the in vitro antioxidant activity of sea buckthorn fruit oil was measured using DPPH, ABTS, and SOD inhibition tests, and the results showed that sea buckthorn fruit oil in northeast China was the strongest antioxidant, followed by Inner Mongolia and Xinjiang. The results of the CCK-8 experiment indicated that within the tested concentration, there is no cell cytotoxicity of the essential oil in human umbilical vein endothelial cells (HUVECs) cells. The results could supply reference to distinguish sea buckthorn fruit from different production areas and, meanwhile, clarify the activity and safety of sea buckthorn oil.
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高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-15
·
IF 16.6
Lu Xiangyu,Kuai Le,Huang Fang,Jiang Jingsi,Song Jiankun,Liu Yiqiong,Chen Si,Mao Lijie,Peng Wei,Luo Ying,Li Yongyong,Dong Haiqing,Li Bin,Shi Jianlin
Psoriasis is a common inflammatory disease of especially high recurrence rate (90%) which is suffered by approximately 3% of the world population. The overexpression of reactive oxygen species (ROS) plays a critical role in psoriasis progress. Here we show that biomimetic iron single-atom catalysts (FeN 4 O 2 -SACs) with broad-spectrum ROS scavenging capability can be used for psoriasis treatment and relapse prevention via related gene restoration. FeN 4 O 2 -SACs demonstrate attractive multiple enzyme-mimicking activities based on atomically dispersed Fe active structures, which are analogous to those of natural antioxidant enzymes, iron superoxide dismutase, human erythrocyte catalase, and ascorbate peroxidase. Further, in vitro and in vivo experiments show that FeN 4 O 2 -SACs can effectively ameliorate psoriasis-like symptoms and prevent the relapse with augmented efficacy compared with the clinical drug calcipotriol. Mechanistically, estrogen receptor 1 (ESR1) is identified as the core protein upregulated in psoriasis treatment through RNA sequencing and bioinformatic analysis. Together, this study provides a proof of concept of psoriasis catalytic therapy (PCT) and multienzyme-inspired bionics (MIB).
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高影响因子
JOM
·
2023
·
IF 2.6
Guo Yufeng,Wang Chao,Wang Shuai,Chen Feng,Yang Lingzhi,Zheng Yu
Avoiding the formation of anosovite phase during the ilmenite reduction process is crucial for the preparation of boiling chloride stove. In this study, the dominant regions of different reduction products of ilmenite in CO-CO 2 system and the phase transformation behavior of pure ilmenite in the reduction process were studied by XRD and SEM-EDS analysis. It was confirmed that the reduction of ilmenite (FeTiO 3 ) at < 1150°C went through two stages: the formation of metal iron (Fe) with rutile (TiO 2 ) and metal iron (Fe) with anosovite (Ti 3 O 5 ). At > 1150°C, the reduction of ilmenite went through two stages: the formation of metal iron (Fe) with pseudobrookite (FeTi 2 O 5 ) and metal iron (Fe) with anosovite (Ti 3 O 5 ). As a typical ilmenite resource, Panzhihua ilmenite is used to study the reduction behavior of actual ore in CO-CO 2 system. The reaction of forming metal iron (Fe) with pseudobrookite (FeTi 2 O 5 ) could occur at 1000°C, and magnesium was dissolved in the product during the formation of anosovite. The presence of magnesium reduces the dominant area of metal iron (Fe) with rutile (TiO 2 ), which is not conducive to the reduction of iron.
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