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Chemically robust superhydrophobic surfaces with a self‐replenishing nanoscale liquid coating

丛书名： Materials for language practice

1985年

作者： green j

来源：畅想之星图书光盘版（南... 评论

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Droplet 2024年第1期3卷 136-148页

作者： Xiaoteng Zhou Pranav Sudersan Diego Diaz Benjamin Leibauer Chirag Hinduja Fahimeh Darvish Pravash Bista Lukas Hauer Manfred Wagner Werner Steffen jie Liu Michael Kappl Hans‐jürgen Butt Max Planck Institute for Polymer Research MainzGermany Key Laboratory of green Printing Institute of ChemistryChinese Academy of SciencesBeijingChina School of Chemical Sciences University of Chinese Academy of SciencesBeijingChina

Due to poor chemical robustness,superhydrophobic surfaces become susceptible to failure,especially in a highly oxidative *** ensure the longterm efficacy of these surfaces,a more stable and environmentally friendly coating is required to replace the conventional salinization ***,soottemplated surfaces with re‐entrant nanostructures are precoated with polydimethylsiloxane(PDMS)*** additional nanometer‐thick lubricant layer of PDMS was then applied to increase chemical *** surface is superhydrophobic with a nanoscale liquid *** the lubricant layer is thin,ridge formation is suppressed,which leads to low drop sliding friction and fast drop *** introducing a bottom“reservoir”of a free lubricant as an oil source for self‐replenishing to the upper layer,the superhydrophobic surface becomes more stable and heals spontaneously in response to alkali erosion and O2 plasma *** design also leads to a higher icing delay time and faster removal of impacting cooled water drops than for uncoated surfaces,preventing icing at low temperatures.

关键词： coating friction liquid

Microglia as hackers of the matrix:sculpting synapses and the extracellular space

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Cellular & Molecular Immunology 2021年第11期18卷 2472-2488页

作者： joshua D.Crapser Miguel A.Arreola Kate I.Tsourmas Kim N.green Department of Neurobiology and Behavior University of CaliforniaIrvineCAUSA

Microglia shape the synaptic environment in health and disease,but synapses do not exist in a ***,pre-and postsynaptic terminals are surrounded by extracellular matrix(ECM),which together with glia comprise the four elements of the contemporary tetrapartite synapse *** research in this area is still just beginning,accumulating evidence points toward a novel role for microglia in regulating the ECM during normal brain homeostasis,and such processes may,in turn,become dysfunctional in *** it relates to synapses,microglia are reported to modify the perisynaptic matrix,which is the diffuse matrix that surrounds dendritic and axonal terminals,as well as perineuronal nets(PNNs),specialized reticular formations of compact ECM that enwrap neuronal subsets and stabilize proximal *** interconnected relationship between synapses and the ECM in which they are embedded suggests that alterations in one structure necessarily affect the dynamics of the other,and microglia may need to sculpt the matrix to modify the synapses ***,we provide an overview of the microglial regulation of synapses,perisynaptic matrix,and PNNs,propose candidate mechanisms by which these structures may be modified,and present the implications of such modifications in normal brain homeostasis and in disease.

关键词： Neuroscience Perineuronal nets Microglia Extracellular matrix Neuroinflammation

Gestational heat stress alters skeletal muscle gene expression profiles and vascularity in fetal pigs in a sexually dimorphic manner

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journal of Animal Science and Biotechnology 2022年第6期13卷 1785-1798页

作者： Weicheng Zhao Mark P.green Christina D.Marth Fan Liu Hieu H.Le Gordon S.Lynch Alan W.Bell Brian j.Leury Frank R.Dunshea jeremy j.Cottrell School of Agriculture and Food Faculty of Veterinary and Agricultural SciencesThe University of MelbourneParkvilleVIC 3010Australia School of BioSciences Faculty of ScienceThe University of MelbourneParkvilleVIC 3010Australia Melbourne Veterinary School Faculty of Veterinary and Agricultural SciencesThe University of MelbourneWerribeeVIC 3030Australia Rivalea Australia Pty Ltd CorowaNSW 2646Australia Centre for Muscle Research Department of Anatomy and PhysiologyThe University of MelbourneParkville 3010Australia Department of Animal Science Cornell UniversityIthacaNY 14853-4801USA Faculty of Biological Sciences The University of LeedsLeeds LS29JTUK

Background: There is evidence that sow heat stress(HS) during gestation affects fetal development with implications for impaired muscle growth. We have previously demonstrated that maternal HS during early to midgestation compromised muscle fibre hyperplasia in developing fetal pigs. Thus, we hypothesised these phenotypic changes are associated with a change in expression of genes regulating fetal skeletal muscle development and metabolism. To test this, at d 60 of gestation, RNA sequencing and immunohistochemistry were performed on fetal longissimus dorsi(LD) muscle biopsies collected from pregnant gilts that had experienced either thermoneutral control(CON, 20 ℃, n = 7 gilts, 18 LD samples) or controlled HS(cyclic 28 to 33 ℃, n = 8 gilts, 23 LD samples)conditions for 3 ***: A total of 282 genes were differentially expressed between the HS and CON groups in female LD muscles(false discovery rate(FDR) ≤ 0.05), whereas no differentially expressed genes were detected in male LD muscles between the two groups(FDR > 0.05). Gestational HS increased the expression of genes associated with transcription corepressor activity, adipogenesis cascades, negative regulation of angiogenesis and pro-inflammatory signalling in female LD muscles. Immunohistochemical analyses revealed a decreased muscle vascularity density in fetuses from HS group for both sexes compared to those from the CON group(P = 0.004).Conclusions: These results reveal gilt HS during early to mid-gestation altered gene expression profiles in fetal LD muscles in a sexually dimorphic manner. The molecular responses, including transcription and angiogenesis repressions and enhanced adipogenesis cascades, were exclusively observed in females. However, the associated reductions in muscle vascularity were observed independently of sexes. Collectively this may indicate female fetal pigs are more adaptive to gestational HS in terms of gene expression changes, and/or there may be sexually dimorphic differences

关键词： Adipogenesis Angiogenesis Fetal pig Gestation Heat stress Sexual dimorphism Skeletal muscle Sows

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Structural,morphological,optical and antibacterial performances of rare earth(Sm)-doped ZnO nanorods

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journal of Rare Earths 2024年第11期42卷 2119-2127页

作者： A.Ravi j.Samuel S.Sahaya jude Dhas S.Usharani Turibius Simon D.Senthil Kumar S.K.jasmin Vijitha A.Sivakumar Raju Suresh Kumar C.S.Biju Department of Physics University College of Engineering Department of Physics and Research Centre Malankara Catholic College Manonmaniam Sundaranar University Saveetha School of Engineering Saveetha Institute of Medical and Technical SciencesSaveetha University Department of Chemistry S.I.V.E.T College Department of Biotechnology Vivekanandha College of Arts and Science for Woman (Autonomous) Department of Physics Vel Tech Rangarajan Dr.Sagunthala R & D Institute of Science and Technology Department of Physics & Research Centre Muslim Arts College Key Laboratory of High-temperature and High-pressure Study of the Earth's Interior Institute of GeochemistryChinese Academy of Sciences Department of Chemistry College of ScienceKing Saud University Department of Physics St. Alphonsa College of Arts and Science

The significant rise of ultra-violet（UV） radiation and pathogenic infectious bacteria poses a serious threat to global *** researchers' interests are attracted by novel materials with strong UVblocking ability,antibacterial activity and low toxicity to other *** this case,a simple wet chemical method with different annealing temperatures（400,500,and 600℃） was employed to create highly effective rare earth（Sm）-doped ZnO ***（101） plane of wurtzite ZnO shifts towards a lower angle with increasing annealing temperature,according to the X-ray diffraction（XRD） study findings,which additionally establishes the consequence of lattice *** of doublet peaks of Sm 3d(Sm 3d5/2and Sm 3d3/2) in the X-ray photoelectron spectroscopy（XPS） spectrum clearly validates the substitution of Sm3+ions in the 500℃-annealed *** 500℃-annealed nanorods exhibit combined performances of the wide band gap,improved UV absorbance,and vivid green luminescent emission（563 nm）.Additio nally,the nanorods have favorable UV-blocking execution of 96% for UVA at 360 nm,92% for UVB at 320 nm,and 57% for UVC at 225 nm,which is greater than the majority of ZnO-related materials that have been reported up to this *** doping is also appropriate for improving bacterial inhibition against the two studied strains（Escherichia coli and Staphylococcus aureus）,in addition to the intriguing features discussed ***,with maximum inhibition zone diameters of 20±0.72 and 18±0.57 mm,respectively,these nanorods exhibit high inhibitory action against *** and *** bacterial *** rare earth-doped material developed during the current experiment,which was annealed at 500℃,could potentially serve as an effective replacement for UV-blocking and antibacterial material,especially for biomedical applications.

关键词： Bacterial inhibition Metal oxide Rare earth doping UV-Shielding Wet chemical method

Emergence of flexible kesterite solar cells:progress and perspectives

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npj Flexible Electronics 2023年第1期7卷 398-412页

作者： jianjun Li Kaiwen Sun Xiaojie Yuan jialiang Huang Martin A.green Xiaojing Hao Australian Centre for Advanced Photovoltaics School of Photovoltaic and Renewable Energy EngineeringUniversity of New South WalesSydneyNSW 2052Australia

Flexible photovoltaics have been and will be increasingly in demand in modern and future society in various *** for ideal flexible photovoltaic technologies that can perfectly meet these expanding demands has long been an active branch of photovoltaic *** kesterite Cu_(2)ZnSn(S,Se)_(4)(CZTSSe)has emerged in recent years owning to its great potential to be an abundant,low-cost,stable,and high-efficiency‘green’photovoltaic material that can be widely deployed with the lowest detrimental environmental ***,we review the recent progress with flexible kesterite solar cells in thin-film and monograin technologies,discuss the key challenges and strategies associated with the flexible substrates,and finally provide the future perspectives on further pushing the efficiency toward commercial-competitive levels.

关键词： finally competitive flexible

南极洲万达盐湖水中方解石饱和指数的垂直变化及其控制因素

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湖泊科学 1992年第1期4卷 79-84页

作者：于昇松 W.j.green 中国科学院青海盐湖研究所西宁810008 美国俄亥俄州迈阿密大学

南极洲万达盐湖为饱和方解石湖水。计算出的方解石饱和指数随水深增加而变化。在Ca^(2+)及HCO_3^-活度值均一的上部氧化环境湖水中,pH及溶解氧(DO)是控制该变化的主要因素,在下部还原环境湖水中,Ca^(2+)及HCO_3^-的活度对方解石的饱和指... 详细信息

南极洲万达盐湖为饱和方解石湖水。计算出的方解石饱和指数随水深增加而变化。在Ca^(2+)及HCO_3^-活度值均一的上部氧化环境湖水中,pH及溶解氧(DO)是控制该变化的主要因素,在下部还原环境湖水中,Ca^(2+)及HCO_3^-的活度对方解石的饱和指数SI的变化起主要作用。这充分揭示了湖底部近代沉积物中分布较多方解石矿物的原因。

关键词：方解石溶解氧盐湖饱和指数

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南极洲赖特谷万达盐湖中铬的垂直迁移

海洋与湖沼 1992年第6期23卷 591-598页

作者：于昇松 W.j.green G.A.Delanoy 中国科学院盐湖研究所西宁810008 School of Interdisciplinary studies Miami University OhioU.S.A. Department of Chemistry Miami UniversityOhioU.S.A.

南极洲万达湖湖水上部为氧化环境,铬浓度较低,Cr^(6+)占主导地位,主要以CrO_4^(2-)形式存在;下部为还原环境,铬浓度高,Cr^(3+)为主,以Cr(OH)_2^+和Cr(OH)^(2+)形式存在。湖水中锰、铁的氧化物及氢氧化物颗粒对铬离子的吸附和释放过程,... 详细信息

南极洲万达湖湖水上部为氧化环境,铬浓度较低,Cr^(6+)占主导地位,主要以CrO_4^(2-)形式存在;下部为还原环境,铬浓度高,Cr^(3+)为主,以Cr(OH)_2^+和Cr(OH)^(2+)形式存在。湖水中锰、铁的氧化物及氢氧化物颗粒对铬离子的吸附和释放过程,控制了湖水铬浓度的变化。

关键词：铬盐湖万达湖南极洲

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Efficient DIPA-CRISPR-mediated knockout of an eye pigment gene in the white-backed planthopper,Sogatella furcifera

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Insect Science 2024年第4期31卷 1015-1025页

作者： Meng-Qi Zhang Lang-Lang Gong Ya-Qin Zhao Yun-Feng Ma Gui-jun Long Huan Guo Xuan-Zheng Liu j.joe Hull Youssef Dewer Chao Yang Ning-Ning Zhang Ming He Peng He National Key Laboratory of green Pesticides Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyangChina Pest Management and Biocontrol Research Unit US Arid Land Agricultural Research CenterUSDA Agricultural Research ServicesMaricopaArizonaUSA Phytotoxicity Research Department Central Agricultural Pesticide LaboratoryAgricultural Research CenterDokkiGizaEgypt Guizhou jifeng Seed Industry Limited Liability Company XingyiGuizhou ProvinceChina Shandong Facility Horticulture Bioengineering Research Center Weifang University of Science and TechnologyWeifangShandong ProvinceChina

Although CRISPR/Cas9 has been widely used in insect gene editing,the need for the microinjection of preblastoderm embryos can preclude the technique being used in insect species with eggs that are small,have hard shells,and/or are difficult to collect and maintain outside of their normal *** is the case with Sogatella furcifera,the white-backed planthopper(WBPH),a significant pest of Oryza sativa(rice)that oviposits inside rice *** extraction from the stem runs the risk of mechanical damage and hatching is heavily influenced by the micro-environment of the rice *** bypass these issues,we targeted embryos prior to oviposition via direct parental(DIPA)-CRISPR,in which Cas9 and single-guide RNAs(sgRNAs)for the WBPH eye pigment gene tryptophan 2,3-dioxygenase were injected into the hemocoel of adult *** at varying numbers of days posteclosion were evaluated to determine at what stage their oocyte might be most capable of taking up the gene-editing *** evaluation of the offspring indicated that the highest G0 gene-edited efficacy(56.7%)occurred in females injected 2 d posteclosion,and that those mutations were heritably transmitted to the G1 *** study demonstrates the potential utility of DIPA-CRISPR for future gene-editing studies in non-model insect species and can facilitate the development of novel pest management applications.

关键词： CRISPR/Cas9 DIPA-CRISPR gene editing tryptophan 2,3-dioxygenase WBPH

Visual function alterations in essential tremor: A case report

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journal of Innovative Optical Health Sciences 2015年第5期8卷 94-98页

作者： david P.Pinero Begona Monllor Vicenta Moncho Vicent j.Camps Dolores de Fez Grupo de Optica y Percepcion Visual(GOPV)Department of Optics Pharmacology and Anatomy University of AlicanteSpain Department of Ophthalmology(OFTALMAR)Medimar International Hospital AlicanteSpain Foundation for the Visual Quality(Fundacion para la Calidad Visual FUNCAVIS)

Our purpose is to report alterations in contrast sensitivity function(CSF)and in the magno,parvo and koniocellular visual pathways by means of a multichannel perimeter in case of an essential tremor(ET).A complete evaluation of the visual function was performed in a 69-year old patient,including the analysis of the chromatic discrimination by the Fansworth–Munsell 100 hue test,the measurement of the CSF by the CSV-1000E test,and the detection of potential alteration patterns in the magno,parvo and koniocellular visual pathways by means of a multichannel *** acuity and intraocular pressure(IOP)were within the ranges of normality in both *** abnormalities were detected in the fundoscopic examination and in the optical coherence tomography(OCT)*** results of the color vision examination were also within the ranges of normality.A signi¯cant decrease in the achromatic CSFs for right eye(RE)and left eye(LE)was detected for all spatial *** statistical global values provided by the multichannel perimeter confirms that there were significant absolute sensitivity losses compared to the normal pattern in *** the LE,only a statistically significant decrease in sensitivity was detected for the blue-yellow(BY)*** pattern standard deviation(PSD)values obtained in our patient indicated that there were significant localized losses compared to the normality pattern in the achromatic channel of the RE and in the red-green(RG)channel of the *** color vision alterations may be present in ET that cannot be detected with conventional color vision tests,such as the FM 100 Hue.

关键词： Multichannel perimetry essential tremor color vision visual pathways contrast sensitivity