JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
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IF 9.9
Jiabing Luo,Xingzhao Wang,Shutao Wang,Wenle Li,Yanpeng Li,Tingyong Wang,Fengqi Xu,Yang Liu,Yan Zhou,Jun Zhang
Inducing the surface reconstruction of spinels is critical for improving the electrocatalytic oxygen evolution reaction (OER) activity. Herein, S-doped NiCo 2 O 4 hollow cubic nanocage was synthesized by anion etching Metal-Organic Frameworks (MOFs) template and air annealing strategies. The hollow structure possesses a large specific surface area and pore size, facilitating active site exposure and mass transport. S 2− doping regulates the electronic structure, reducing the oxidation potential of Ni sites during the OER process, thus promoting the surface reconstruction into γ-NiOOH active species. Meanwhile, S 2− doping enhances conductivity, accelerating interfacial charge transfer. As a result, S-NiCo 2 O 4 -6 exhibits superior OER activity (262 mV overpotential @ 10 mA cm −2 ) and stability in 1.0 M KOH solution. Furthermore, 20 % Pt/C‖S-NiCo 2 O 4 -6 only needs 1.832 V to achieve 50 mA (the electrochemical active area is 4 cm 2 ) in a homemade anion exchange membrane (AEM) electrolyzer. This work proposes a novel approach for preparing efficient anion-doped spinel-based OER electrocatalysts.
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SENSORS AND ACTUATORS B-CHEMICAL
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2023
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IF 8.4
Yunlong Yu,Zhiyan Ma,Xiaoya Miao,Yanyu Cui,Yaping Song,Sen Liu,Teng Fei,Tong Zhang
Low humidity detection has been a great challenge in the field of humidity sensing. In recent years, polyelectrolytes have been proven to be promising materials for highly sensitive humidity sensors . In this work, cross-linked poly(ionic liquid)s (PILs) were prepared for low humidity detection. The strong hydrophilicity of PILs contributes to humidity sensing while the cross-linked structure guarantees the stability of the sensing film. The optimized sensor shows high response (48.0) in 5–35% RH, with short response/recovery time (1 s/10 s) and a small humidity hysteresis (0.2% RH). The possible sensing mechanism of the sensors was discussed.
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INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2023
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IF 4.2
Runqian Yang,Rui Xiong,Kunpeng Wang,Yining Jiang,Qian Chen,Liping Ruan
The problem of microwave pollution becomes more serious with the widespread popularity of electronic equipment; the development of microwave absorption materials has assumed critical importance. However, most reported carbon-based microwave absorption materials have no obvious absorption performance in 2–4 GHz (S band), which seriously limits their application. In this work, Ni(OH)2-coated peach pit carbon [Ni(OH)2/C1] is prepared by simple precipitation to achieve a minimum reflection loss (RL) value of −46.2 dB (5.6 mm, at 2.9 GHz) and absorption band cover 2.54–4 GHz in the thickness range of 3.7–6 mm in the S-band. In addition, Ni(OH)2/C1 achieved an RLmin value of −58.05 dB (2.7 mm, at 7.68 GHz) and maximum effective absorption bandwidth (EAB) of 3.95 GHz in the range 2–18 GHz. Our work provides new insights into the microwave absorption in low frequencies and expands the application range and scenarios of carbon-based materials.
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INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2023
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IF 8.2
Xiao-Ling Lei,Kai Cheng,Yong-Guo Hu,Yong Li,Xiao-Lin Hou,Fang Zhang,Lin-Fang Tan,Zi-Tao Zhong,Jian-Hao Wang,Jin-Xuan Fan,Yuan-Di Zhao
Abscess wound caused by bacterial infection is usually difficult to heal, thus greatly affect people's quality of life. In this study, a biodegradable drug-loaded microneedle patch (MN) is designed for targeted eradication of S. aureus infection and repair of abscess wound. Firstly, the bacterial responsive composite nanoparticle (Ce6@GNP-Van) with a size of about 182.6 nm is constructed by loading the photosensitizer Ce6 into gelatin nanoparticle (GNP) and coupling vancomycin (Van), which can specifically target S. aureus and effectively shield the phototoxicity of photosensitizer during delivery. When Ce6@GNP-Van is targeted and enriched in the infected regions, the gelatinase secreted by the bacteria can degrade GNP in situ and release Ce6 , which can kill the bacteria by generating ROS under laser irradiation. In vivo experiments show that the microneedle is basically degraded in 10 min after inserting into skin, and the abscess wound is completely healed within 13 d after applying Ce6@GNP-Van-loaded MN patch to the abscess wound of the bacterial infected mice with laser irradiation, which can simultaneously achieve the eradication of biofilm and subsequent wound healing cascade activation, showing excellent synergistic antibacterial effect. In conclusion, this work establishes a synergistic treatment strategy to facilitate the repair of chronic abscess wound.
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Laser & Photonics Reviews
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2023
·Vol. 18
·期 1
·2300809
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IF 11
Xiankun Zheng,Lijin Wang,Jialin Bai,Han Zhang,Hanzhuang Zhang,Aiwei Tang,Wenyu Ji
Currently, the performance of quantum-dot light-emitting diodes (QLEDs) based on environmental-friendly Cu─In─Zn─S quantum dots (QDs) still lags far behind that of Cd-QDs-based devices. Here it is demonstrated that the unique trap-related recombination in Cu─In─Zn─S QDs is mainly responsible for the low device efficiency. The luminous efficiency of Cu─In─Zn─S-based QLEDs is rather sensitive to the temperature and hole-transporting layers (HTLs) due to the susceptible thermal-related trappingdetrapping processes of holes in radiative Cu-related traps. The holes in Cu-related traps can be quenched by escaping to the valence band of the QDs or/and transferring to the adjacent HTLs. An HTL with low highest occupied molecular orbitals is desired to enhance the hole injection and hinder the aforementioned hole transfer. As a result, a high device efficiency of 6.0 cd A −1 is achieved at room temperature, which is attributed to suppressed HTL-induced emission quenching and efficient valence-band-dominated hole injection from HTL to the QDs. The device efficiency is further increased to 13.2 cd A −1 at 150K by suppressing thermal-induced quenching.
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2023
·Vol. 30
·期 51
·111152-111164
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IF 5.8
Yang Qian,Wang Xueting,Shi Jing,Wei Jiaqi,He Yangqing
Despite S-doped C 3 N 4 can exhibit more efficient photo-reactivity than pure C 3 N 4 , there is still some space to further improve the detaching efficiency of electron-hole and enhance the photocatalytic efficiency of S-C 3 N 4 . The construction of heterojunction is an effective method to promote the photocatalytic efficiency. ZnIn 2 S 4 , as a novel photocatalyst, its VB (1.37 V) and CB (− 1.09 V) can match with S-C 3 N 4 . Therefore, we hope to construct the ZnIn 2 S 4 /S-C 3 N 4 heterojunction for boosting the photocatalytic activity of S-C 3 N 4 . In this paper, ZnIn 2 S 4 /S-C 3 N 4 heterojunction was prepared through hydrothermal method using S-C 3 N 4 , ZnCl 2 , InCl 3 ·4H 2 O, and thioacetamide as raw materials and heated at 160 °C for 16 h. The optimum 18% ZnIn 2 S 4 /S-C 3 N 4 nanocomposites exhibit dramatically enhanced photocatalytic performance for degradation of tetracycline with 86.3% removal rate within 120 min, higher than 50% degradation efficiency of pure S-C 3 N 4 . And in the process of photodegradation for tetracycline, the largest contribution rate is the photo-excited cavity (h + ), followed by ·O 2 − and ·OH. Herein, we have provided a good example for removing antibiotic residues by using S-C 3 N 4 -based heterojunction towards environmental remediation.
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EUROPEAN JOURNAL OF MEDICAL RESEARCH
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2023
·Vol. 28
·期 1
·1-10
·
IF 4.2
Gu Shanshan,Lin Chen,Li Yanguo,Wei Zhengyu,cao Bing,Shen Zhisen,Deng Hongxia
Head and neck squamous carcinoma (HNSCC) is the seventh most common cancer worldwide. Targeted therapeutic drugs for HNSCC are still being explored. Among them, (S)-10-hydroxycamptothecin (10-HCPT), a specific inhibitor of TOP1, functions by DNA double-strand breaks that can inhibit DNA replication and trigger apoptotic cell death subsequently. Previous studies have reported that MLN4924 exerts potent anti-tumor effects by inhibiting cullin–RING ligases and causing substrate accumulation in a variety of cancers. Here, we show that MLN4924 effectively causes dose-dependent accumulation of topoisomerase I (TOP1) and blocks TOP1 ubiquitination. Importantly, neddylation inhibition with MLN4924 acts synergistically with 10-HCPT to suppress cell growth, migration and apoptosis in HNSCC cells. Mechanistically, transcriptome sequencing shows that the cytotoxic effects of the combination of MLN4924 and 10-HCPT may involve activation of the NFKB1 pathway. Taken together, our results suggest that combined treatment with MLN4924 and 10-HCPT may be an effective strategy in HNSCC.
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JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH
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2021
·
IF 1.571
Zhi-Ping Che,Jin-Ming Yang,Song Zhang,Di Sun,Yue-E Tian,Sheng-Ming Liu,Xiao-Min Lin,Jia Jiang,Gen-Qiang Chen
Endeavor to discover biorational natural products-based insecticides, two series (27) of novel 9R/S-acyloxy derivatives of cinchonidine and cinchonine were prepared and assessed for their insecticidal activity against Mythimna separata in vivo by the leaf-dipping method at 1 mg/mL. Among all the compounds, especially derivatives 6l and 6o exhibited the best insecticidal activity with final mortality rates of 75.0% and 71.4%, respectively. Overall, a free 9-hydroxyl group is not a prerequisite for insecticidal activity and C9-substitution is well tolerated; the configuration of C8/9 position is important for insecticidal activity, and 9S-configuration is optimal; 6’-OCH3 moiety is not necessary, removal of it is also acceptable.
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NANO
·
2021
·
IF 1.556
Qian Zhang,Renxia Zhu,Chenyu Zhao,Runze Fan,Yong Zhang,Yurong Cai
Application of lithium-sulfur battery has been limited due to polysulfide dissolution, the insulating nature of sulfur and the volumetric strain produced during charge and discharge process. To improve the performance of Li-S batteries, two kinds of bimetallic sulfides of NiCo 2 S 4 with flaky (F-NiCo 2 S 4 ) and sea urchin-like (S-NiCo 2 S 4 ) structures were synthesized by using simple hydrothermal method, which were used as sulfur carriers in lithium-sulfur batteries and showed excellent electrochemical properties. At 0.2 C, both electrodes of F-NiCo 2 S 4 /S and S-NiCo 2 S 4 /S have high pristine discharge specific capacities of 986 mAh g − 1 and 959 mAh g − 1 . At high current density of 4 C, the F-NiCo 2 S 4 /S electrode still has a high pristine discharge specific capacity of 673 mAh g − 1 and a coulombic efficiency of 97.00%. The specific capacity can remain at 526 mAh g − 1 with a low average attenuation of 0.17% even after 130 cycles. The excellent electrochemical performances of the cathode material can be ascribed to the synergistic effect of tubular morphology, good electrical conductivity and strong adsorption ability of NiCo 2 S 4 matrix for polysulfide. The job provides a new scheme and material for application of lithium-sulfur batteries with high performance.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2021
·
IF 4.098
Xueqing Guo,Yang Liu,Wenjuan Dong,Qin Hu,Yong Li,Shaomin Shuang,Chuan Dong,Lishuai Cai,Xiaojuan Gong
Azithromycin (AZM) 1 is one of the most widely used antibiotics. AZM abuse is easy to cause great harm to human body, so developing a rapid and sensitive method to detect AZM is of great importance. Herein, 3-aminothiophenol as only reaction precursor, nitrogen and sulfur co-doped carbon quantum dots (N,S-CQDs) 2 were fabricated by one-step hydrothermal carbonization method. All characteristics demonstrate that N,S-CQDs possess good water solubility, high fluorescence stability and low cytotoxicity. Without being disturbed by amino acids and drugs, the most interesting finding is that AZM can efficiently quench the fluorescence of N,S-CQDs by a synergistic effect of electrostatic interaction and static quenching. A fluorescent probe for the detection of AZM was constructed with high selectivity and good sensitivity, achieving two linear ranges of 2.5–32.3 μM and 37.2–110 μM and a limit of detection of 0.76 µM. The proposed fluorescent method was used for the detection of AZM in cells with fulfilling results. More importantly, the fluorescent probe was successfully used to the detection of AZM in tablets and human urine with recovery rate and relative standard deviations of 98.2–104.8% and 0.04–3.46%, respectively, which was confirmed by the standard method of HPLC-UV. This finding illustrates the usefulness and feasibility of N,S-CQDs as an effective fluorescent probe for the detection of AZM in tablets and human urine, which is helpful for supervising and guiding pharmacy.
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CHEMISTRY-A EUROPEAN JOURNAL
·
2021
·Vol. 27
·期 21
·6538-6544
·
IF 5.236
Yi Huang,Le Gao,HaoHai Yu,Zhihua Yang,Junjie Li,Shilie Pan
Graphical Laser damage limitation : Promising ternary infrared nonlinear optical (NLO) materials, Na 6 MQ 4 (M=Zn, Cd; Q=S, Se), with unique [NaQ 4 ] NLO-active groups, are successfully prepared. Theoretical calculations and statistical analyses indicate that the second-harmonic generation effect and band gap in the compounds originate mainly from the distorted NaQ 4 NLO-active units with a short Na−S bond length. Four sodium-based ternary IR nonlinear optical (NLO) materials, Na 6 MQ 4 (M=Zn, Cd; Q=S, Se), were prepared through a high-temperature flux method. The crystal structure of the compounds is built up of isolated [MQ 4 ] tetrahedra and a 3D framework formed by the NaQ n ( n =4, 5) units. The two selenides, Na 6 MSe 4 (M=Zn, Cd), as promising IR NLO materials, show moderate second-harmonic generation (SHG) responses (0.9 and 0.5×AgGaS 2 ) with good phase-matching behavior, as well as high laser damage thresholds (2 and 1.9×AgGaS 2 ). The two sulfides, Na 6 MS 4 (M=Zn, Cd), exhibit higher laser damage thresholds (13 and 4×AgGaS 2 ), but smaller SHG responses (0.3 and 0.2×AgGaS 2 ). Theoretical calculations and statistical analyses indicate that the SHG effect and band gap in the compounds originate mainly from the distorted NaQ 4 NLO-active units with a short Na−S bond length, which provides a new insight into the design of novel IR NLO materials.
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SOLID STATE SCIENCES
·
2021
·
IF 3.059
Lin Liu,Moying Li,Peng Jiang,Kunyang Cui,Yuqian Wang,Jianlei Kuang,Wenbin Cao
The solid solution of YIn 1- x Mn x O 3 shows intense blue colors as well as excellent properties. In this paper, N- and N/S- doped YIn 1- x Mn x O 3 samples are successfully prepared by the high-energy ball milling method with hexamethylenetetramine (C 6 H 12 N 4 ), urea (CH 4 N 2 O) and thiourea (CH 4 N 2 S). The X-ray diffraction patterns of samples with various anion doping all show single phase and the oxidation state of Mn are maintained as +3. In C 6 H 12 N 4 treated YIn 0.7 Mn 0.3 O 3 , N is in the interstitial site while in CH 4 N 2 O treated YIn 0.7 Mn 0.3 O 3 , N exists in both interstitial site and substitution site. In CH 4 N 2 S treated YIn 0.7 Mn 0.3 O 3 , both S and N are in the substitution site and interstitial site. Due to the anion doping by N and S, the optical properties of the samples are modified and analyzed.
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