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Strengthening poly(2-hydroxyethyl methacrylate) hydrogels using biochars and hydrophobic aggregations

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International Journal of Smart and Nano Materials 2022年第4期13卷 561-574页

作者： Ping Zhang Ziyi Xu zhiying wu Ping Xu Canhui Yang Shenzhen Key Laboratory of Soft Mechanics&Smart Manufacturing Department of Mechanics and Aerospace EngineeringSouthern University of Science and TechnologyShenzhenP.R.China Department of Chemistry City University of Hong KongHong KongP.R.China Department of Respiratory and Critical Care Medicine Peking University Shenzhen HospitalShenzhenGuangdongP.R.China

As the first version of synthetic hydrogel,poly(2-hydroxyethyl methacrylate)hydrogels have found broad ***,their poor mechanical performances have been longstanding hurdles for practical ***,we report on strengthening the poly(2-hydroxyethyl methacrylate)hydro-gels with biochar nanoparticles and hydrophobic aggregations,which are induced by solvent exchange and reinforced by *** the vast anchoring points on the multifunc-tional surfaces of the biochar nanoparticles and the aggregates formed between poly(2-hydroxyethyl methacrylate)chains engender strong and dissipative physical *** result-ing hydrogels exhibit marked mechanical properties,encom-passing high stretchability~7,high fracture toughness~1360 J m−2,high elastic modulus~180 kPa,low friction coefficient~0.2,self-recovery,and ***,we demonstrate the versatility of the proposed strategy by using water/ionic liquid binary solvent as the sol-vent system,Laponite as the nano-reinforcement,and dryanneal as the hydrophobic aggregation enhancer to synthesize mechanically robust ***(2-hydroxyethyl methacry-late)hydrogels of superior mechanical properties are expected to enable previously inaccessible applications in biomedicine and engineering.

关键词： Hydrogel PHEMA mechanical properties biochar hydrophobic aggregation

Recyclingg plastic Waste into multifunctional superhydrophobic textiles

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Nano Research 2022年第11期15卷 9921-9925页

作者： Qinglang Ma zhiying wu Vlad Andrei Neacșu Sai Zhao Yu Chai Hua Zhang Frontiers Science Center for High Energy Material Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsKey Laboratory of Cluster ScienceMinistry of EducationAdvanced Research Institute of Multidisciplinary ScienceSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081China Department of Chemistry City University of Hong KongHong Kong 999077China Hong Kong Branch of National Precious Metals Material Engineering Research Center(NPMM) City University of Hong KongHong Kong 999077China Shenzhen Research Institute City University of Hong KongShenzhen 518057China Center for Programmable Materials School of Materials Science and EngineeringNanyang Technological University50 Nanyang AvenueSingapore 639798Singapore Department of Physics City University of Hong KongHong Kong 999077China

The plastic pollution has become one of the top environmental *** effort has been devoted into recycling waste plastic materials in a facile and economical *** this work,we have successfully recycled a common type of plastic waste,i.e.,polystyrene(PS),into value-added functional materials through a cost-effective and facile dip-coating *** resulted mixture of waste PS and SiO_(2),referred to as PS/SiO_(2),coated textile material is superhydrophobic and superoleophilic,showing an excellent resistance towards corrosive solutions(acid,alkaline,and saline),high temperature treatment,and mechanical *** a proof-of-concept application,the PS/SiO_(2)-coated textile is used to selectively separate oil/water mixtures through either absorption or filtration *** also exhibits a surface self-cleaning property,which may be used as fabrics for dust-preventing *** work offers a new strategy to treat the waste for preparation of novel low-cost superhydrophobic materials for various applications.

关键词： waste recycling superhydrophobic oil water separation self-cleaning

Highly robust supramolecular polymer networks crosslinked by metallacycles

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Chinese Chemical Letters 2024年第12期35卷 35-37页

作者： Xiaoman Dang zhiying wu Tangxin Xiao Zhouyu Wang Leyong Wang School of Petrochemical Engineering Changzhou University Department of Chemistry Xihua University Department of Chemistry Xihua University Chengdu 610039 China Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University

Supramolecular polymer networks(SPNs), which integrate principles from both supramolecular chemistry and traditional polymer science, offer a multitude of advantages, including dynamic,reversible, recoverable, and stimuli-responsive characteristics [1,2].These unique attributes render them exceedingly appealing as prospective adaptive materials. Nonetheless, owing to the utilization of relatively weak non-covalent bonds, supramolecular polymers often exhibit weaker mechanical properties when compared with their covalent counterparts.

关键词： supramolecular polymer networks metallacycles metal-coordination interactions stimuli-responsiveness

An amphiphilic molecule with a single fluorophore exhibits multiple stimuli-responsive behavior

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Chinese Chemical Letters 2023年第11期34卷 159-162页

作者： Dongxing Ren Lu Tang zhiying wu Qiaona Zhang Tangxin Xiao Robert B.P.Elmes Leyong Wang School of Petrochemical Engineering Changzhou UniversityChangzhou 213164China Department of Chemistry Maynooth UniversityNational University of IrelandMaynoothCo.KildareIreland Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Fluorescent materials that respond to multiple stimuli have broad applications ranging from sensing and bioimaging to information ***,we report the design and synthesis of a single-fluorophorebased amphiphile DCSO,which shows temperature-,solvent-,humidity-,and radiation-dependent *** consists of a dicyanostilbene(DCS)group as a rigid hydrophobic core with oligo(ethylene glycol)(OEG)chains at both ends as a flexible hydrophilic *** DCS group acts as a highly efficient fluorophore,while the OEG chain endows the molecule with *** colors can vary from blue to green to yellow in response to external *** the basis of light radiation,we demonstrate that this system can be applied to time-dependent information encryption,in which the correct information can only be read at a specific time under *** work further demonstrates the usefulness and application of single-fluorophore-based luminescent materials with multiple stimuli-responsive functions.

关键词： Self-assembly Multi-responsive fluorescence Single fluorophore Information encryption Smart materials

DIMENSIONS AND GAUGES FOR SYMMETRIC CANTOR SETS

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Analysis in Theory and Applications 1995年第4期11卷 108-110页

作者： Feng Dejun, Rao Hui, Wen zhiying, wu Jun(wuhan University, China) Department of Mathematics Wuhan University Wuhan PRC

*** definitions and notions 1.1. Hausdorff gauge and Packing gaugeA funciton h:[0.1]→ R is said to be a dimension function if it has the following properties:(1)h(t)is continuous and increasing, h(0)=0, h(t)>0 when t... 详细信息

关键词： DIMENSIONS AND GAUGES FOR SYMMETRIC CANTOR SETS

Atypical features in two adult patients with Cockayne syndrome and analysis of genotype-phenotype correlation

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Chinese Medical Journal 2023年第17期136卷 2110-2112页

作者： Haoling Cheng Dianfu Chen zhiying wu Ning Wang Department of Neurology First Affiliated HospitalFujian Medical UniversityFuzhouFujian 350005China Department of Neurology and Research Center of Neurology in Second Affiliated Hospital and Key Laboratory of Medical Neurobiology of Zhejiang ProvinceZhejiang University School of MedicineHangzhouZhejiang 310000China Fujian Key Laboratory of Molecular Neurology Fujian Medical UniversityFuzhouFujian 350005China

To the Editor:Cockayne syndrome(CS;Mendelian Inheritance in Man#133540,216400)is a rare autosomal recessive neurodegenerative disorder described by Edward Cockayne in 1936.[1]The prevalence of CS is 2.7 per million live births,[2]and the disease is probably *** major clinical features are progressive growth failure and microcephaly as well as other characteristics such as a“cachectic dwarfism”appearance with sunken eyes,cutaneous photosensitivity,mental retardation,demyelinating peripheral neuropathy,pigmentary retinopathy,cataracts,deafness,dental anomalies,and premature death.[1,3]There is considerable variation in the severity of the disorder,leading to classification into three main types.

关键词： dwarf analysis retardation

Differentiation of neuromyelitis optica from multiple sclerosis in a cohort from the mainland of China

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Chinese Medical Journal 2014年第18期127卷 3213-3218页

作者： Liu Ying ZhaoGuixian Yu Hai Lyu Chuanzhen Li Zhenxin wu zhiying Department of Neurology and Institute of Neurology Huashan Hospital Shanghai Medical College Fudan University Shanghai 200040 China

Background Although there were criteria for diagnosis of neuromyelitis optica （NMO） and multiple sclerosis （MS）,it is still difficult to differentiate NMO from MS,due to the overlapping clinical *** it is necessary to characterize clinical features of NMO and MS patients in the mainland of China,to simplify the process of disease diagnosis,and to identify criteria for the differential diagnosis of NMO and *** A total of 138 Chinese Han patients from the mainland of China including 73 NMO,60 MS and 5 MS-like patients with positive NMO-IgG were included in the *** records were reviewed retrospectively and the results of clinical examination,laboratory experiments,magnetic resonance imaging （MRI） and evoked potentials （EPs） were compared between NMO and MS *** addition,the relationship between the NMO-IgG serologic status and clinical characteristics were *** Compared with MS patients （1.3∶ 1.0）,more female prevalence was observed in NMO patients （4.2∶ 1.0; P=0.003）.There were also statistically significant differences in visual EPs,oligoclonal bands,brainstem lesions in MRI and longitudinally extensive spinal cord lesions （LESCLs） between NMO and MS *** lesions observed in brain MRI were found in 17.9% of MS patients,over 3.7 times higher than in NMO patients （4.8%,P=0.024）.When stratified NMO patients by NMO-IgG,LESCLs were found in 42.1% of NMO-IgG-negative NMO patients,over 3.5 times higher than in NMO-IgG-positive patients （11.9%,P=0.008）.Statistical difference was also observed in CD4＋/CD8＋ ratios between NMO-IgG-positive and-negative NMO *** Comprehensive analysis of MRI,laboratory and EPs data can facilitate differential diagnosis of MS and *** addition,the combination of LESCLs and brain MRI findings failing to satisfy MRI criteria for MS is highly sensitive and specific for NMO.

关键词： neuromyelitis optica multiple sclerosis Chinese

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神经遗传病基因诊断的困境与对策

中华神经科杂志 2023年第2期56卷 121-124页

作者：吴志英浙江大学医学院附属第二医院神经内科和医学遗传科杭州310009

随着基因检测技术的日益成熟和检测成本的逐年下降,基因诊断逐渐成为诊断神经遗传病的终极手段。由于神经遗传病具有高度的临床变异性和遗传异质性,临床医生在基因诊断过程中经常面临各种困境。文中针对这些困境提出相应对策,建议神经... 详细信息

随着基因检测技术的日益成熟和检测成本的逐年下降,基因诊断逐渐成为诊断神经遗传病的终极手段。由于神经遗传病具有高度的临床变异性和遗传异质性,临床医生在基因诊断过程中经常面临各种困境。文中针对这些困境提出相应对策,建议神经遗传病领域的专家不仅要熟悉神经遗传病的临床、遗传、致病基因及基因检测技术的特点,从而制定最合理的基因检测方案,还要学会正确分析和解读基因检测结果,避免漏诊和误诊。

关键词：神经遗传病基因诊断困境对策

小流域水污染治理示范工程——杭州长桥溪的生态修复

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湖泊科学 2008年第1期20卷 33-38页

作者：吴芝瑛陈鋆杭州市西湖水域管理处杭州310002

长桥溪是杭州西湖上游四大溪流之一.长桥溪生态修复工程利用长桥溪流域的微地貌和水动力作用,通过地埋式污水处理系统与人工湿地相结合的方法,将污水处理工艺与景观园林紧密结合,综合运用物理、化学、生物等手段对长桥溪流域内污水进行... 详细信息

长桥溪是杭州西湖上游四大溪流之一.长桥溪生态修复工程利用长桥溪流域的微地貌和水动力作用,通过地埋式污水处理系统与人工湿地相结合的方法,将污水处理工艺与景观园林紧密结合,综合运用物理、化学、生物等手段对长桥溪流域内污水进行处理,从而减少该溪向西湖的污染物排放.工程经过两年运行,2006年其入湖湖水的TP、TN、NH4+-N和CODMn浓度分别降至0.067±0.041mg/L、3.54±1.23 mg/L、0.59±0.46mg/L和2.11±0.38mg/L,较2003年依次降低了88.5%、68.8%、89.1%和68.0%.

关键词：长桥溪地埋式污水处理人工湿地生态修复杭州西湖