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Flower-like CuS/graphene oxide with photothermal and enhanced photocatalytic effect for rapid bacteria-killing using visible light

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Rare Metals 2022年第2期41卷 639-649页

作者： Rui Lv Yan-Qin Liang Zhao-yang Li Sheng-Li Zhu Zhen-duo Cui Shui-LinWu School of Materials Science&Engineering the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin 300072China The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China Tianjin UniversityTianjin 300072China

Pathogenic bacteria have been threatening the daily life of human *** effective methods without causing drug-resistance of bacteria need to be developed to fight against these ***,flower-like CuS/-graphene oxide(GO)hybrids have been successfully synthesized via simple one-pot hydrothermal *** worked as an excellent electron acceptor to transport the photogenerated electrons from CuS,which can suppress the recombination of hole–electron pairs efficiently,thus enhancing the photocatalytic *** addition,the morphology of CuS and GO with high specific surface area and the increased defect in GO also improved photocatalytic performance of the *** to the synergy of photothermal,enhanced photocatalytic effect and released Cu ions,CuS/GO exhibited outstanding antibacterial efficacy under visible light irradiation for 15 ***,the hybrid showed great biocompatibility to L929 ***,the synthesized CuS/GO would be a promising antibacterial material for daily life including rapid water disinfection and wounds sterilization.

关键词： Antibacterial Photocatalytic CuS Graphene oxide Photoresponsive

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新疆棉秆皮纤维提取工艺

印染助剂 2025年第1期42卷 41-44页

作者：刘阳常涛陈珺玮喻惠许多塔里木大学纺织服装学院新疆阿拉尔843300 塔里木大学信息工程学院新疆阿拉尔843300 塔里木大学现代纺织材料与技术兵团重点实验室新疆阿拉尔843300

为了提高新疆废弃棉秆皮的利用价值,采用浸碱超声辅助碱氧脱胶法提取新疆棉秆皮纤维。探究过氧化氢质量浓度、氢氧化钠质量浓度、脱胶时间、脱胶温度、浴比对新疆棉秆皮脱胶效果的影响。结果表明:当过氧化氢质量浓度为10 g/L,氢氧化钠... 详细信息

为了提高新疆废弃棉秆皮的利用价值,采用浸碱超声辅助碱氧脱胶法提取新疆棉秆皮纤维。探究过氧化氢质量浓度、氢氧化钠质量浓度、脱胶时间、脱胶温度、浴比对新疆棉秆皮脱胶效果的影响。结果表明:当过氧化氢质量浓度为10 g/L,氢氧化钠质量浓度为10 g/L,脱胶时间为90 min,脱胶温度为70℃,浴比为1∶25时,脱胶率为69.25%,回潮率为5.3%,断裂强力为73.12 cN,细度为46.38μm,手扯长度为72 mm,白度为58.4%,结晶度为57.69%。

关键词：新疆棉秆皮脱胶超声辅助

Numerical investigation of droplet pre-dispersion in a monodisperse droplet spray dryer

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Particuology 2018年第3期16卷 44-60页

作者： Jie Xiao yang Li Oluwafemi Ayodele George Zhihao Li Shujun yang Meng Wai Woo Winston duo Wu Xiao Dong Chen Suzhou Key Laboratory of Green Chemical Engineering School of Chemical and Environmental Engineering College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu Province 215123 China Department of Chemical Engineering Faculty of Engineering Monash University Clayton Campus Victoria Australia

Monodisperse droplet spray dryers have great advantages in particle formation through spray drying because of their ability to produce uniform sized particles. Experimental analyses of this system have shown that droplets atomized through the piezoceramic nozzle need to be sufficiently well dispersed before entering the drying chamber to achieve sufficiently dried particles. However, the dispersion dynamics cannot be readily observed because of experimental limitations, and key factors influencing the dispersion state currently remain unclear. This study carried out numerical simulations for droplet dispersions in the dispersion chamber, which allow this important process to be visualized. The system- atic and quantitative analyses on the dispersion states provide valuable data for improving the design of the dispersion chamber, and optimizing the spray drying operation.

关键词： Spray drying Monodisperse droplet spray dryer Droplet dispersionCFD simulation Reaction engineering approach (REA) Discrete phase model (DPM)

Three-dimensional printed talar prosthesis with biological function for giant cell tumor of the talus:A case report and review of the literature

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World Journal of Clinical Cases 2021年第13期9卷 3147-3156页

作者： Qian-Dong yang Mi-duo Mu Xu Tao Kang-Lai Tang Sports Medicine Center The First Affiliated Hospital of Army Medical UniversityChongqing 400038China

BACKGROUND Giant cell tumors(GCT)are most commonly seen in the distal *** tumors are uncommon in the small bones of the hand and feet,and a very few cases have been reported.A giant cell tumor of the talus is rarely seen clinically and could be a challenge to *** SUMMARY We report a rare case of GCT of the talus in one patient who underwent a new reconstructive surgery technique using a three-dimensional(3D)printing talar *** prosthesis shape was designed by tomographic image processing and segmentation using technology to match the intact side by mirror symmetry with 3D post-processing *** patient recovered nearly full range of motion of the ankle after 6 *** visual analogue scale and American Orthopaedic Foot and Ankle Society scores were 1 and 89 points,*** We demonstrated that 3D printing of a talar prosthesis is a beneficial option for GCT of the talus.

关键词： Three-dimensional printing technology Giant cell tumor Talar prosthesis Case report

Prolonging the plasma circulation of proteins by nano- encapsulation with phosphorylcholine-based polymer

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Nano Research 2016年第8期9卷 2424-2432页

作者： Linlin Zhang yang Liu Gan Liu duo Xu Sheng Liang Xinyuan Zhu Yunfeng Lu Hui Wang Department of Nuclear Medicine Xinhua Hospital Affiliated to Shanghai Jiao Tong University Shanghai Jiao Tong University Shanghai 200092 China Department of Chemical and Biomolecular Engineering University of California Los Angeles California 90095 USA The Shenzhen Key Laboratory of Gene and Antibody Therapy Center for Biotechnology and Biomedicine and Division of Life and Health Sciences Tsinghua University Shenzhen 518055 China School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China Key Laboratory of Functional Polymer Materials Ministry of Education Institute of Polymer Chemistry Nankai University Tianjin 300071 China

Short in vivo circulation is a major hindrance to the widespread adoption of protein therapeutics. Protein nanocapsules generated by encapsulating proteins with a thin layer of phosphorylcholine-based polymer via a two-step encapsulation process exhibited significantly prolonged plasma half-life. Furthermore, by constructing nanocapsules with similar sizes but different surface charges and chemistry, we demonstrated a generic strategy for prolonging the plasma half-life of therapeutic proteins. In an in vitro experiment, four types of bovine serum albumin （BSA） nanocapsules were incubated with fetal bovine serum （FBS） in phosphate buffer saline （PBS）; the cell uptake by HeLa cells was monitored to systematically evaluate the characteristics of the surface chemistry during drculation. Single positron emission tomography-computed tomography （SPECT） was employed to allow real-time observation of the BSA nanoparticle distribution in vivo, as well as quantification of the plasma concentration after intravenous administration. This study offers a practical method for translating a broad range of proteins for clinical use.

关键词： phosphorylcholine-basedpolymer nano-encapsulation function protein delivery protein therapy long-circulation

Novel conservative treatment for peritoneal dialysis-related hydrothorax:Two case reports

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World Journal of Clinical Cases 2020年第24期8卷 6437-6443页

作者： Bin-Bin Dai Bei-duo Lin Li-Yan yang Jian-Xin Wan yang-Bin Pan Department of Nephrology The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005Fujian ProvinceChina Department of Nephrology Shanghai Pudong HospitalShanghai 201399China

BACKGROUND Peritoneal dialysis (PD) is an important renal replacement therapy for patientswith end-stage renal disease. PD-related hydrothorax is a rare but seriouscomplication in PD patients, produced by the movement of peritoneal dialysatethrough pleuroperitoneal fistulas. In previous reports, patients with hydrothoraxsecondary to PD were usually recommended to discontinue PD and transfer tohemodialysis (HD). Herein, we describe another method of managing thiscomplication—with an adjusted PD prescription and continuous drainage ofpleural effusion, patients could continue PD without recurrence of *** SUMMARY In this report, we present the medical records of 2 patients with hydrothoraxsecondary to PD. We recommended intermittent PD with continuous drainage ofpleural effusion. A type 18Ga soft catheter was placed to drain pleural ***-guided thoracentesis was performed, and the soft catheter was placedin the pleural cavity for a long period (3 mo and 2 mo, respectively). The pleuralcatheter was removed when no fluid was drained from the pleural cavity. Afterseveral months, pleuroperitoneal fistulas were closed in both patients and PD wascontinued. These patients did not transfer to HD, had no recurrence ofhydrothorax and were still treated with PD after 1 *** These 2 case reports show that continuous drainage of pleural effusion with an18Ga soft catheter is a useful method for hydrothorax secondary to PD.

关键词： Peritoneal dialysis End-stage renal disease Hydrothorax Treatment Conservative Case report

Electrical Properties of Hydrous Forsterite Derived from First-Principles Calculations

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Chinese Physics Letters 2011年第5期28卷 289-291页

作者： WANG duo-Jun LIU Zai-yang YI Li SHI Bao-Ping Key Laboratory of Computational Geodynamics Graduate UniversityChinese Academy of SciencesBeijing 100049 Institute of Earthquake Science China Earthquake AdministrationBeijing 100039

We investigate electrical properties of anhydrous and hydrous forsterite crystalwith 3.2 wt%water by using firstprinciples *** calculation results indicate that the pressure weakly affects the electrical properties of anhydrous *** types of defect configurations involving the two hydrogen atoms in different positions are *** 1 involves the entrapment of two hydrogen atoms in a Mg vacancy,which demonstrates little effect on the electronic density of states(DoS)of the forsterite *** 2 corresponds to the replacement of one hydrogen atom into the Mg vacancy with the other one located in different orientations(free proton model).It is this configuration that can significantly change the DoS of the forsterite *** gap energy of the free proton model derived at different orientations is in the range of 0.693-1.007eV.

关键词： DoS vacancy configuration

Mercury in alpine fish from four rivers in the Tibetan Plateau

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Journal of Environmental Sciences 2016年第1期28卷 22-28页

作者： Junjuan Shao Jianbo Shi Bu duo Chengbin Liu Yan Gao Jianjie Fu Ruiqiang yang Guibin Jiang State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental SciencesChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences Science Faculty Tibet University

As a global pollutant, high levels of mercury（Hg） have been found in remote ecosystem due to the long range atmospheric transport. In this study, a total of 60 fish samples were collected from four rivers across the Tibetan Plateau to study the accumulation of Hg in remote and high-altitude aquatic environment. The total Hg（THg） and methylmercury（MeHg） in fish muscles ranged from 11 to 2097 ng/g dry weight（dw）（average： 819 ng/g dw）and from 14 to 1960 ng/g dw（average： 756 ng/g dw）, respectively. Significantly positive linear relationships were observed between the THg（r = 0.591, p 〈 0.01, n = 36） and MeHg concentrations（r = 0.473, p 〈 0.01, n = 36） with the trophic level of fish from Lhasa River,suggesting trophic transfer and biomagnification of Hg in this aquatic ecosystem. Moreover,the THg levels in fish had significantly positive correlations with the length（r = 0.316,p 〈 0.05, n = 60） and weight（r = 0.271, p 〈 0.05, n = 60） of fish. The high levels of Hg were attributed to the slow growth and long lifespan of the fish under this sterile and cold environment. Risk assessment revealed that the consumption of Oxygymnocypris stewartii,Schizothorax macropogon, Schizothorax waltoni, Schizopygopsis younghusbandi and Schizothorax o＇connori would lead to a high exposure to Me Hg.

关键词： Mercury Methylmercury Fish The Tibetan Plateau Trophic level Risk assessment

Microstructure and mechanical properties of TC4 joints brazed with Ti-Zr-Cu-Sn amorphous filler alloy

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Rare Metals 2021年第7期40卷 1881-1889页

作者： Hui-Hui Zhang Zhen-duo Cui Sheng-Li Zhu Shi-Wei Guo Xian-Jin yang Akihisa Inoue School of Materials Science and Engineering Tianjin UniversityTianjin 30007China Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationTianjin 300072China Tianjin Key Laboratory of Composite and Functional Materials Tianjin 300072China Department of Physics King Abdulaziz UniversityJeddah 22254Saudi Arabia

The Ti_(51.44)Zr_(16.26)Cu_(30)Sn_(2.3)(at%)amorphous filler alloy in a ribbon form was prepared by melt *** Ti-6 Al-4 V alloy was brazed in vacuum furnace by using the Ti_(51.44)Zr_(16.26)Cu_(30)Sn_(2.3)amorphous filler *** effects of brazing temperature and holding time on the interfacial microstructure and mechanical properties of the Ti-6 Al-4 V brazed joints were *** brazed joints are composed ofα-Ti,β-Ti,and(Ti,Zr)_(2)Cu *** shear strength of the joints increases with brazing temperature increasing from 1153 to 1193 K and holding time from 10 to 15 min,while decreases with brazing temperature and time further *** temperature brazing results in the formation of microcracks and voids in the seams,which are harmful for the shear strength of the *** the joint brazed at 1193 K for 15 min,a fineα+βWidmansta¨tten structure beneficial to the mechanical property is formed,and the joint exhibits relatively high joint strength of 180 MPa.

关键词： Amorphous alloy Brazing Titanium alloy Microstructure Mechanical property