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Case report of neurofibromatosis type 1 combined with primary ciliary dyskinesia

Frontiers of Medicine 2021, Volume 15, Issue 6,   Pages 933-937 doi: 10.1007/s11684-021-0860-7

Abstract: Further electron microscopy analysis of cilia and identification of homozygous mutations in the RSPH4A

Keywords： primary ciliary dyskinesia     neurofibromatosis     bronchiectasis     transmission electron microscopy     genetic    

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A multi-integrated approach on toxicity effects of engineered TiO

Ana PICADO,Susana M. PAIXÃO,Liliana MOITA,Luis SILVA,Mário S. DINIZ,Joana LOURENÇO,Isabel PERES,Luisa CASTRO,José Brito CORREIA,Joana PEREIRA,Isabel FERREIRA,António Pedro Alves MATOS,Pedro BARQUINHA,Elsa MENDONCA

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 793-803 doi: 10.1007/s11783-015-0775-0

Abstract: The new properties of engineered nanoparticles drive the need for new knowledge on the safety, fate, behavior and biologic effects of these particles on organisms and ecosystems. Titanium dioxide nanoparticles have been used extensively for a wide range of applications, e.g, self-cleaning surface coatings, solar cells, water treatment agents, topical sunscreens. Within this scenario increased environmental exposure can be expected but data on the ecotoxicological evaluation of nanoparticles are still scarce. The main purpose of this work was the evaluation of effects of TiO nanoparticles in several organisms, covering different trophic levels, using a battery of aquatic assays. Using fish as a vertebrate model organism tissue histological and ultrastructural observations and the stress enzyme activity were also studied. TiO nanoparticles (Aeroxide® P25), two phase composition of anatase (65%) and rutile (35%) with an average particle size value of 27.6±11 nm were used. Results on the EC for the tested aquatic organisms showed toxicity for the bacteria, the algae and the crustacean, being the algae the most sensitive tested organism. The aquatic plant showed no effect on growth. The fish showed no effect on a 21 day survival test, though at a biochemical level the cytosolic Glutathione-S-Transferase total activity, in intestines, showed a general significant decrease ( <0.05) after 14 days of exposure for all tested concentrations. The presence of TiO nanoparticles aggregates were observed in the intestine lumen but their internalization by intestine cells could not be confirmed.

Keywords： ecotoxicity     enzymatic analysis     histology     transmission electron microscopy (TEM)     TiO2-nanoparticles    

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Nanobubble Dynamics in Aqueous Surfactant Solutions Studied by Liquid-Phase Transmission Electron Microscopy Letter

Yuna Bae, Sungsu Kang a,b, Byung Hyo Kim, Kitaek Lim, Sungho Jeon, Sangdeok Shim, Won Chul Lee, Jungwon Park

Engineering 2021, Volume 7, Issue 5,   Pages 630-635 doi: 10.1016/j.eng.2021.02.006

Abstract: Using liquid-phase transmission electron microscopy (TEM) with multi-chamber graphene liquid cells, bulk

Keywords： Nanobubbles     In situ TEM     Liquid-phase TEM     Surfactant    

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Analysis of behavior of melted dark green silty soil

TANG Yiqun, ZHOU Nianqing, YANG Ping, SHEN Feng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 242-245 doi: 10.1007/s11709-008-0022-x

Abstract: The behavior of dark green silty soil of the 6th storey is studied by means of scanning electron microscopy

Keywords： electron microscopy     mechanic     microscopic perspective     addition     dynamic    

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Experimental flexural behavior of SMA-FRP reinforced concrete beam

Adeel ZAFAR, Bassem ANDRAWES

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 341-355 doi: 10.1007/s11709-013-0221-y

Abstract: Manufacturing technique of new proposed composite is validated using microscopy images.

Keywords： re-centering     shape memory alloys     concrete     composite     fiber reinforced polymer     scanning electron microscopy    

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Experimental study on capturing CO 2 greenhouse gas by mixture of ammonia and soil

Ying WU, Yifei WANG, Qinghua ZENG, Xin GONG, Zunhong YU,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 468-473 doi: 10.1007/s11705-009-0257-7

Abstract: Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) are utilized to

Keywords： electron microscopy     product     physical adsorption     capacity     spectroscopy    

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4-Amino-1,8-naphthalimide based fluorescent photoinduced electron transfer (PET) pH sensors as liposomal

Miguel Martínez-Calvo, Sandra A. Bright, Emma B. Veale, Adam F. Henwood, D. Clive Williams, Thorfinnur Gunnlaugsson

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 1,   Pages 61-75 doi: 10.1007/s11705-019-1862-8

Abstract: Four new fluorescent sensors ( - ) based on the 4-amino-1,8-naphthalimide fluorophores ( ) have been synthesized based on the classical fluorophore-spacer-receptor model. These four compounds all gave rise to emission bands centred at 535 nm, which were found to be highly pH dependent, the emission being ‘switched on’ in acidic media, while being quenched due to PET from the amino moieties to the excited state of the at more alkaline pH. The luminescent pH dependence for these probes was found to be highly dependent on the substitution on the imide site, as well as the polyamine chain attached to the position 4-amino moiety. In the case of sensor the presence of the 4-amino-aniline dominated the pH dependent quenching. Nevertheless, at higher pH, PET quenching was also found to occur from the polyamine site. Hence, is better described as a receptor -spacer -fluorophore-spacer -receptor system, where the dominant PET process is due to (normally less favourable) ‘directional’ PET quenching from the 4-amino-aniline unit to the site. Similar trends and pH fluorescence dependences were also seen for and . These compounds were also tested for their imaging potential and toxicity against HeLa cells (using DRAQ5 as nuclear stain which does now show pH dependent changes in acidic and neutral pH) and the results demonstrated that these compounds have reduced cellular viability at moderately high concentrations (with IC values between ca. 8‒30 µmol∙L ), but were found to be suitable for intracellular pH determination at 1 µmol∙L concentrations, where no real toxicity was observed. This allowed us to employ these as lysosomal probes at sub-toxic concentrations, where the based emission was found to be pH depended, mirroring that seen in aqueous solution for , with the main fluorescence changes occurring within acidic to neutral pH.

Keywords： sensors     pH     photoinduced electron transfer     cellular imaging     confocal microscopy    

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Plasma-enabled healing of graphene nano-platelets layer

Xiuqi Fang, Carles Corbella, Denis B. Zolotukhin, Michael Keidar

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 350-359 doi: 10.1007/s11705-018-1787-7

Abstract: Damaging and re-growth of GPN samples were systematically characterized by scanning electron microscopy

Keywords： graphene platelet networks     anodic arc discharge     plasma healing     scanning electron microscopy     Raman spectroscopy    

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Copolymerization of polyketones catalyzed by polyacrylonitrile resin-supported palladium acetate

GUO Jintang, ZHANG Hongxin, WANG Bo, YE Yaqin

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 2,   Pages 165-170 doi: 10.1007/s11705-008-0010-7

Abstract: catalyst and the copolymerization product were characterized by infrared spectroscopy (IR) and Scanning ElectronMicroscopy (SEM).

Keywords： copolymerization     Electron Microscopy     monoxide     excellent catalytic     Polyketone    

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Studies on catalytic reduction of nitrate in groundwater

GENG Bing, ZHU Yanfang, JIN Zhaohui, LI Tielong, KANG Haiyan, WANG Shuaima

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 357-361 doi: 10.1007/s11783-007-0061-x

Abstract: characterized by brunauer-emmett-teller (BET), inductive coupled plasma (ICP), X-ray diffraction (XRD), transmissionelectron microscopy (TEM) and energy dispersive X-ray (EDX).

Keywords： dispersive     electron microscopy     considerable decrease     Catalytic reduction     brunauer-emmett-teller    

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Preparation and performance of novel thermal stable composite nanofiltration membrane

WU Chunrui, ZHANG Shouhai, YANG Fajie, YAN Chun, JIAN Xigao

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 402-406 doi: 10.1007/s11705-008-0063-7

Abstract: surface morphologies of the substrate and the composite membranes were observed by means of scanning electronmicroscopy (SEM) and atomic force microscopy (AFM).

Keywords： electron microscopy     rejection     composite membrane     interfacial polymerization     thermal stability    

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Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 268-278 doi: 10.1007/s11465-012-0331-6

Abstract: A clear picture of the surface damage was obtained using a scanning electron microphotograph.

Keywords： spur gear     power recirculating test rig     altered tooth-sum gearing     scanning electron microscopy (SEM)    

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Fouling mechanisms in the early stage of an enhanced coagulation-ultrafiltration process

Haiqing CHANG,Baicang LIU,Wanshen LUO,Guibai LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 1,   Pages 73-83 doi: 10.1007/s11783-014-0692-7

Abstract: Then we analyzed the fouling mechanisms in the early stage of UF using mathematical models and microscopyMembrane autopsy analysis using scanning electron microscopy (SEM) images of the membrane surface sampled

Keywords： coagulation-UF     trans-membrane pressure (TMP)     permeability     membrane fouling resistance     scanning electronmicroscopy (SEM)    

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Preparation and catalytic performance of La0.8Sr0.2CoO3 supported on the mullite fiber ceramic

ZENG Lingke, LIU Yanchun, LIU Ping′an, WANG Hui, SHUI Anze, DUAN Bilin

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 372-376 doi: 10.1007/s11705-007-0067-8

Abstract: porous ceramics was prepared by means of the impregnating method, and was then characterized by scanning electronmicroscopy (SEM) and X-ray diffraction (XRD); thus we can come to the conclusion that the perovskite-type

Keywords： porous     conversion     catalytic activity     electron microscopy     perovskite-type LaSrCoO    

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Applications of atomic force microscopy in immunology

Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang

Frontiers of Medicine 2021, Volume 15, Issue 1,   Pages 43-52 doi: 10.1007/s11684-020-0769-6

Abstract: The principle of atomic force microscopy (AFM) and its three running modes are introduced for the mechanical

Keywords： cellular mechanics     atomic force microscopy     neutrophil extracellular trap     macrophage phagocytosis     pore    

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Title Author Date Type Operation

Case report of neurofibromatosis type 1 combined with primary ciliary dyskinesia

Journal Article

A multi-integrated approach on toxicity effects of engineered TiO

Ana PICADO,Susana M. PAIXÃO,Liliana MOITA,Luis SILVA,Mário S. DINIZ,Joana LOURENÇO,Isabel PERES,Luisa CASTRO,José Brito CORREIA,Joana PEREIRA,Isabel FERREIRA,António Pedro Alves MATOS,Pedro BARQUINHA,Elsa MENDONCA

Journal Article

Nanobubble Dynamics in Aqueous Surfactant Solutions Studied by Liquid-Phase Transmission Electron Microscopy

Yuna Bae, Sungsu Kang a,b, Byung Hyo Kim, Kitaek Lim, Sungho Jeon, Sangdeok Shim, Won Chul Lee, Jungwon Park

Journal Article

Analysis of behavior of melted dark green silty soil

TANG Yiqun, ZHOU Nianqing, YANG Ping, SHEN Feng

Journal Article

Experimental flexural behavior of SMA-FRP reinforced concrete beam

Adeel ZAFAR, Bassem ANDRAWES

Journal Article

Experimental study on capturing CO 2 greenhouse gas by mixture of ammonia and soil

Ying WU, Yifei WANG, Qinghua ZENG, Xin GONG, Zunhong YU,

Journal Article

4-Amino-1,8-naphthalimide based fluorescent photoinduced electron transfer (PET) pH sensors as liposomal

Miguel Martínez-Calvo, Sandra A. Bright, Emma B. Veale, Adam F. Henwood, D. Clive Williams, Thorfinnur Gunnlaugsson

Journal Article

Plasma-enabled healing of graphene nano-platelets layer

Xiuqi Fang, Carles Corbella, Denis B. Zolotukhin, Michael Keidar

Journal Article

Copolymerization of polyketones catalyzed by polyacrylonitrile resin-supported palladium acetate

GUO Jintang, ZHANG Hongxin, WANG Bo, YE Yaqin

Journal Article

Studies on catalytic reduction of nitrate in groundwater

GENG Bing, ZHU Yanfang, JIN Zhaohui, LI Tielong, KANG Haiyan, WANG Shuaima

Journal Article

Preparation and performance of novel thermal stable composite nanofiltration membrane

WU Chunrui, ZHANG Shouhai, YANG Fajie, YAN Chun, JIAN Xigao

Journal Article

Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Journal Article

Fouling mechanisms in the early stage of an enhanced coagulation-ultrafiltration process

Haiqing CHANG,Baicang LIU,Wanshen LUO,Guibai LI

Journal Article

Preparation and catalytic performance of La0.8Sr0.2CoO3 supported on the mullite fiber ceramic

ZENG Lingke, LIU Yanchun, LIU Ping′an, WANG Hui, SHUI Anze, DUAN Bilin

Journal Article

Applications of atomic force microscopy in immunology

Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang

Journal Article