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Antifouling Technology Trends in Marine Environmental Protection

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Journal of Bionic Engineering 2021年第2期18卷 239-263页

作者： limei tian Yue Yin Wei Bing E Jin Key Laboratory of Bionic Engineering Ministry of EducationJilin UniversityChangchun 130022China Weihai Institute for Bionics-Jilin University Weihai 264207China School of Chemistry and Life Science Changchun University of TechnologyChangchun 130012China

Marine fouling is a worldwide problem,which is harmful to the global marine ecological environment and economic *** traditional antifouling strategy usually uses toxic antifouling agents,which gradually exposes a serious environmental ***,green,long-term,broad-spectrum and eco-friendly antifouling technologies have been the main target of engineers and *** recent years,many eco-friendly antifouling technologies with broad application prospects have been developed based on the low toxicity and non-toxicity antifouling agents and *** this review,contemporary eco-friendly antifouling technologies and materials are summarized into bionic antifouling and non-bionic antifouling strategies(2000-2020).Non-bionic antifouling technologies mainly include protein resistant polymers,antifoulant releasing coatings,foul release coatings,conductive antifouling coatings and photodynamic antifouling *** antifouling technologies mainly include the simulated shark skin,whale skin,dolphin skin,coral tentacles,lotus leaves and other biology *** future research directions and challenges are also discussed in the end,and we expect that this review would boost the development of marine antifouling technologies.

关键词： biofouling antifouling technologies bionic non-bionic biofilm

Corrosion Resistance and Antifouling Bioinspired Coating with Doped Polyaniline and TO@CA Self-Healing Nanocapsules

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Journal of Bionic Engineering 2023年第6期20卷 2826-2839页

作者： Hongli tian Wenbo Du Yuchao Zhan limei tian Jie Zhao Jiyu Sun Key Laboratory of Bionic Engineering(Ministry of Education China)Jilin UniversityChangchun130022China National Key Laboratory for Remanufacturing Army Academy of Armored ForcesBeijing100000China

In this study,an integrative bioinspired coating system for antifouling and corrosion resistance was investigated,in which self-healing nanocapsules(tung oil calcium alginate,TO@CA),doped polyaniline and nano-titanium dioxide nanocomposites(SPAn–TiO_(2))and a biostructure metal surface were *** antifouling property of the bioinspired coating resulted from the synergistic antifouling effect of nano-TiO_(2)and acid-doped polyaniline in SPAn–TiO_(2).The protonated nitrogen with a positive charge in SPAn–TiO_(2)and the intrinsic bactericidal property of nano-TiO_(2)could damage negatively charged single-celled chlorella,endowing the composite coating with good antifouling performance(less algae attached on the surfaces after a 90-day antifouling test and a conductivity test).The composite bioinspired coating had excellent corrosion resistance,which was due to the good synergistic anticorrosion barrier effect of SPAn–TiO_(2)with TO@CA nanocapsules and the repairing ability of microcracks of TO@CA nanocapsules during the corrosion *** bioinspired coating with 2 wt%SPAn–TiO_(2)and 2 wt%TO@CA nanocapsules exhibited a better adhesion,corrosion resistance and antifouling performance than the other coatings did.

关键词： Corrosion resistance Antifouling Self-healing Multifunctional bioinspired coating Doped polyaniline

牛粪对双孢菇菌渣堆肥过程中碳氮转化及真菌群落的影响

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农业环境科学学报 2024年第1期43卷 162-173页

作者：王萌萌范博文赵立琴孙宁杨凤军田丽美吴瑕黑龙江八一农垦大学园艺园林学院黑龙江大庆163000

为揭示牛粪对双孢菇菌渣堆肥过程中真菌群落动态及其对碳氮转化的影响,使用高通量测序技术探索了牛粪和菌渣堆肥过程中真菌群落组成、结构的变化,利用生物信息学的方法分析了真菌群落及其与碳、氮组分间的相互作用关系。以牛粪和菌渣作... 详细信息

为揭示牛粪对双孢菇菌渣堆肥过程中真菌群落动态及其对碳氮转化的影响,使用高通量测序技术探索了牛粪和菌渣堆肥过程中真菌群落组成、结构的变化,利用生物信息学的方法分析了真菌群落及其与碳、氮组分间的相互作用关系。以牛粪和菌渣作为研究对象,采用条垛式堆肥的方法共堆肥42 d,设CK(100%双孢菇菌渣)和CD(双孢菇菌渣∶牛粪=7∶3)两个处理。结果表明:CD处理比CK堆肥总有机碳(TOC)降低2.17%,腐熟期碳、氮分别提高48.69%和4.01%,发芽指数(GI)提高49.33%。添加牛粪提高了菌渣堆肥中真菌群落丰富度和多样性,堆体温度高且高温期延长23 d;子囊菌门和担子菌门是两处理的优势菌门;CD处理食线虫菌属(Duddingtonia)、Coprinellus、鬼伞属(Coprinopsis)、细粒嗜热菌属(Thermomyces)的相对丰度均高于CK,有利于碳氮转化。利用Pearson相关系数构建网络模型,分析筛选出与碳氮转化相关的核心真菌属,CD处理有2个与TOC相关的核心真菌属(50%正相关),CK处理中有7个属与TOC相关(28.6%正相关)。菌渣牛粪联合堆肥真菌共现网络的关联性和复杂性更高,真菌群落间竞争减弱,平均路径长度较低,网络更敏感。菌渣堆肥添加牛粪可改变核心真菌与TOC和总氮(TN)间的关系,在CD处理中TOC核心菌与TOC呈正相关,而在CK处理中呈负相关。两处理TN核心菌与TN间均呈显著正相关关系,与TOC负相关。研究表明,菌渣与牛粪联合可使堆体快速升温,延长堆体的高温期,核心真菌通过增加与其他微生物的相互作用,影响碳氮转化,降低TOC损失率,提高堆肥品质。

关键词：堆肥菌渣牛粪真菌群落碳氮转化核心真菌

Novel Anti-fouling Strategies of Live and Dead Soft Corals(Sarcophyton trocheliophorum):Combined Physical and Chemical Mechanisms

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Journal of Bionic Engineering 2020年第4期17卷 677-685页

作者： limei tian E Jin Benli Yu Hang Sun Yangeng Shang Wei Bing Key Laboratory of Bionic Engineering Ministry of EducationJilin UniversityChangchun 130022China Weihai Institute for Bionics-Jilin University Weihai 264207China Yantai Ice Wheel Casting Co. LtdYantai 264002China Yantai Ice Wheel Intelligent Machinery Technology Co. LtdYantai 264006China School of Chemistry and Life Science Changchun University of TechnologyChangchun 130012China

At present,biomimetic antifouling research objects are mostly concentrated on the fast-moving marine organism,but the anti-fouling effect of the low-speed or static marine equipment is not *** paper describes the anti-fouling mechanism of soft coral(Sarcophyton trocheliophorum),including the physical defense mechanism and the bactericidal ability of mucus and coral *** a sessile organisms,soft coral lacks escape ***,the study on its antibacterial strategy is significant because it can provide theoretical guidance for static *** showed that the live soft coral would molt in unfriendly environment,and the secreted mucus could defend themselves against fouling ***,Liquid Chromatography-Mass Spectrometry(LC-MS)analysis was conducted to identify the bioactive compounds of the coral powder and *** revealed that both powder and mucus contained a wide variety of toxic components,which had bactericidal ***,at the same concentration,the inhibitory effect of the main components on Gram-negative bacteria was stronger than that on positive *** findings enhance the understanding about the antifouling mechanism of soft coral and provide new ideas for design and prepare novel antifouling strategy to combat biofouling under static condition.

关键词： biomimetic antifouling soft coral antibacterial marine bacteria mucus

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手术联合药物成功治疗持久性隆起性红斑1例

中国皮肤性病学杂志 2024年第10期38卷 1127-1130页

作者：田丽梅紫薇周镁史静吴昕哲葛新红宁夏医科大学宁夏银川750003

患者男,55岁,双手反复起疹伴破溃5年。皮肤科情况:双手背、指腹可见散在黄豆至蚕豆大小暗红色结节,触之质韧,活动度差,部分结节表面破溃,形成浅表溃疡。皮损组织病理示:角化过度,表皮增生肥厚,真皮全层见席纹状纤维组织增生,部分血管壁... 详细信息

患者男,55岁,双手反复起疹伴破溃5年。皮肤科情况:双手背、指腹可见散在黄豆至蚕豆大小暗红色结节,触之质韧,活动度差,部分结节表面破溃,形成浅表溃疡。皮损组织病理示:角化过度,表皮增生肥厚,真皮全层见席纹状纤维组织增生,部分血管壁纤维性增厚伴中性粒细胞浸润。诊断:持久性隆起性红斑。治疗:给予氨苯砜联合沙利度胺口服,针对隆起性结节给予手术切除,治疗2个月后无新发结节。

关键词：持久性隆起性红斑手术

Bio-inspired Graphene-enhanced Thermally Conductive Elastic Silicone Rubber as Drag Reduction Material

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Journal of Bionic Engineering 2017年第1期14卷 130-140页

作者： limei tian E Jin Haoran Mei Qingpeng Ke Ziyuan Li Hailin Kui Key Laboratory of Bionic Engineering (Ministry of Education) Jilin University Changchun 130022 China Siping People's Government Office Siping 136000 China Transportation College Jilin University Changchun 130022 China

This study presented a graphene platelet/silicone rubber （GPL/SR） composite as a drag reduction material, inspired by the boundary heating drag reduction mechanism of dolphin skin. Graphene was added as a thermally conductive filler at weight fractions of 0.17 wt%, 0.33 wt% and 0.67 wt% to pristine silicone rubber （PSR）. Tests of the thermal conductivity and tensile properties showed that the thermal conductivity of all three GPL/SR materials of 0.17 wt%, 0.33 wt% and 0.67 wt% graphene were 20%, 40% and 50% higher than that of the P SR, respectively, and the elastic modulus of the 0.17 wt% GPL/SR materials was lowest. Droplet velocity testing, which can reflect the drag reduction mechanism of the heating boundary controlled by the GPL/SR composite, was performed between 0.33 wt% GPL/SR, which typically exhibits good mechanical properties and thermal conductivity performance, and the PSR. The results showed that on the 0.33 wt% GPL/SR, the droplet velocity was higher and the rolling angle was lower, implying that the GPL/SR composite had a drag-reducing function. In terms of the drag reduction mechanism, the heat conductivity performance of the GPL/SR accelerated the heat transfer between the GPL/SR composite surface and the droplet. The forces between the molecules decreased and the droplet dynamic viscosity was reduced. The drag of a sliding water droplet was proportional to the dynamic viscosity, which resulted in drag reduction. The application of GPL/SR material to the control fluid medium should have important value for fluid machinery.

关键词： silicone rubber thermal conductivity elastic modulus bio-inspiration drag reduction

Construction and application of bionic antifouling coatings inspired by soft coral

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Biosurface and Biotribology 2022年第3期8卷 244-253页

作者： Wei Bing EJin limei tian Huichao Jin Zhuo Liu Key Laboratory of Bionic Engineering Ministry of EducationJilin UniversityChangchunChina School of Chemistry and Life Science Changchun University of TechnologyChangchunChina College of Mechanical and Electrical Engineering Henan Agricultural UniversityZhengzhouChina Weihai Institute for Bionics‐Jilin University WeihaiChina Department of the Lymphatic and Vascular Surgery Key Laboratory of Lymphatic Surgery Jilin ProvinceChina‐Japan Union Hospital of Jilin UniversityChangchunChina

Marine biofouling will bring a series of environmental and social problems,which restrict the development and utilisation of marine ***,how to prevent biofouling has become a global *** the exploration of antifouling methods,bionic antifouling technology with environmentally friendly,broad‐spectrum,and long‐term advantages has gradually attracted people's *** by the antifouling strategy of soft coral(Sarcophyton trocheliophorum),the silicone rubber(RTV‐2)with similar elasticity to coral skin was selected as the *** composite structure of the upper transparent layer and the lower porous layer was prepared by simulating the structure of soft coral as the structural factors of the bionic antifouling ***,several organic antifouling components with high content contained in soft coral were added to the transparent layer and porous layer,respectively,as the component factors of biomimetic *** bionic antifouling coatings,which are highly consistent with the coral structure,obtained the best antifouling performance under static and dynamic *** above results provide new ideas for the synthesis of environmentally friendly bionic antifouling coatings.

关键词： antifouling bacteria bionics soft coral silicon rubber

Bio-inspired Superhydrophobic Self-healing Surfaces with Synergistic Anticorrosion Performance

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Journal of Bionic Engineering 2020年第6期17卷 1196-1208页

作者： Xiaona Yang limei tian Wei Wang Yong Fan Jiyu Sun Jie Zhao Luquan Ren Key Laboratory of Bionic Engineering Minitry of EducationJilin UniversityChangchun 130022China College of Chemistry Jilin UniversiyChangchun 130022China

The past decade has witnessed significant efforts in addressing the global metallic corrosion challenge,with a focus on avoiding or mitigating huge economic losses incurred by corrosion and on the development of protective coatings on ***,a synergistic anticorrosion coating with both superhydrophobicity and self-healing properties was reported,through a facile replica molding method by mixing the polyvinylidene fluoride(PVDF)matrix with nano-sized SiO2 particles and 2-mercaptobenzothiazole(MBT)loaded halloysites(HNTs).The surface exhibits robust self-cleaning behavior under harsh conditions and high liquid repellence to withstand the osmosis of corrosive *** self-healing performance of the coating,due to the introduction of MBT-loaded HNTs,enhances the anticorrosion capability,which is still valid once the protective layer is *** polarization(PDP)and Electrochemical Impedance Spectroscopy(EIS)measurements demonstrate that the synergetic effects in anticorrosion performances significantly enhance the long-term corrosion protection of ***,this type of dual-action coating may find unique applications in metal corrosion resistance where both super-repellency and self-healing properties are desired.

关键词： superhydrophobic anticorrosion self-healing corrosion inhibitor

A customized model for 3D human segmental kinematic coupling analysis by optoelectronic stereophotogrammetry

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Science China(Technological Sciences) 2010年第11期53卷 2947-2953页

作者： ZHAO GuoRu REN Lei tian limei QIAN ZhiHui WANG Lei REN LuQuan Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Key Laboratory for Biomedical Informatics and Health Engineering Chinese Academy of SciencesShenzhen 518055China School of Mechanical Aerospace and Civil EngineeringUniversity of ManchesterManchester M601QDUK Key Laboratory of Bionic Engineering(Ministry of Education) Jilin UniversityChangchun 130022China

The study of three-dimensional human kinematics has significant impacts on medical and healthcare technology innovations. As a non-invasive technology, optoelectronic stereophotogrammetry is widely used for in-vivo locomotor evaluations. However, relatively high testing difficulties, poor testing accuracies, and high analysis complexities prohibit its further employment. The objective of this study is to explore an improved modeling technique for quantitative measurement and analysis of human locomotion. Firstly, a 3D whole body model of 17 rigid segments was developed to describe human locomotion. Subsequently, a novel infrared reflective marker cluster for 17 body segments was constructed to calibrate and record the 3D segmental position and orientation of each functional body region simultaneously with high spatial accuracy. In addition, the novel calibration procedure and the conception of kinematic coupling of human locomotion were proposed to investigate the segmental functional characteristics of human motion. Eight healthy male subjects were evaluated with walking and running experiments using the Qualisys motion capture system. The experimental results demonstrated the followings: (i) The kinematic coupling of the upper limbs and the lower limbs both showed the significant characteristics of joint motion, while the torso motion of human possessed remarkable features of segmental motion; (ii) flexion/extension was the main motion feature in sagittal plane, while the lateral bending in coronal plane and the axial rotation in transverse plane were subsidiary motions during an entire walking cycle regarding to all the segments of the human body; (iii) compared with conventional methods, the improved techniques have a competitive advantage in the convenient measurement and accurate analysis of the segmental dynamic functional characteristics during human locomotion. The modeling technique proposed in this paper has great potentials in rehabilitation engineering

关键词： human movement analysis in-vivo skeletal system kinematics calibration technique kinematic coupling