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显示 1-29 共 29 条结果 关于 "172405" 范围 论文
Bin Liu et al.
ChemSusChem, 8(21), 3697-3703 (2015-10-13)
The development of highly efficient catalysts is critical for the practical application of lithium-oxygen (Li-O2) batteries. Nanosheet-assembled ZnCo2O4 (ZCO) microspheres and thin films grown in situ on single-walled carbon nanotube (ZCO/SWCNT) composites as high-performance air electrode materials for Li-O2 batteries are
Malinda Salim et al.
Lab on a chip, 7(4), 523-525 (2007-03-29)
This Technical Note presents the direct surface modification of a glass/PTFE hybrid microfluidic chip, via radio frequency glow discharge plasma polymerisation of tetraethlylene glycol dimethylether (tetraglyme), to produce hydrophilic, non-fouling, PEO-like surfaces. We use several techniques including X-ray photoelectron spectroscopy
Yoshiyuki Gambe et al.
Scientific reports, 5, 8869-8869 (2015-03-10)
The development of high energy-density lithium-ion secondary batteries as storage batteries in vehicles is attracting increasing attention. In this study, high-voltage bipolar stacked batteries with a quasi-solid-state electrolyte containing a Li-Glyme complex were prepared, and the performance of the device
Hun-Gi Jung et al.
Nature chemistry, 4(7), 579-585 (2012-06-22)
Although dominating the consumer electronics markets as the power source of choice for popular portable devices, the common lithium battery is not yet suited for use in sustainable electrified road transport. The development of advanced, higher-energy lithium batteries is essential
Lan Cao et al.
Journal of biomedical materials research. Part A, 79(4), 788-803 (2006-08-03)
Previous studies from our lab have shown that fibrinogen adsorption (Gamma(Fg)) must be reduced below 10 ng/cm(2) to significantly reduce platelet adhesion, and that radio frequency glow discharge (RFGD) treatment of polymeric films in the presence of tetraethylene glycol dimethyl
Lan Cao et al.
Journal of biomedical materials research. Part A, 81(1), 12-23 (2006-11-17)
In this study, a glow discharge plasma deposition system previously used for treating flat substrates was successfully modified and optimized to produce a PEO-like coating on the inner surface of 1-3 mm ID polyethylene tubing by deposition of tetra ethylene
Claire R Hurley et al.
Langmuir : the ACS journal of surfaces and colloids, 26(12), 10203-10209 (2010-03-25)
Plasma-polymerized tetraglyme films (PP4G) have been modified by exposure to ultraviolet (UV) light from a frequency-doubled argon ion laser (244 nm) and characterized using X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). XPS data indicated that the ether component
Konstantin S Taletskiy et al.
The journal of physical chemistry. B, 119(45), 14472-14478 (2015-10-17)
Chemical stability of primary radical cations (RCs) generated in irradiated matter determines substantially the radiation resistance of organic materials. Transformations of the RCs of the glyme molecules, R(-O-CH2-CH2-)nO-R (R = CH3, n = 1-4) has been studied on the nanosecond
Frank Y Fan et al.
Advanced materials (Deerfield Beach, Fla.), 27(35), 5203-5209 (2015-08-11)
The kinetics of Li2 S electrodeposition onto carbon in lithium-sulfur batteries are characterized. Electrodeposition is found to be dominated by a 2D nucleation and growth process with rate constants that depend strongly on the electrolyte solvent. Nucleation is found to
Thelma I Valdes et al.
Biomaterials, 29(10), 1356-1366 (2007-12-25)
Nafion is the membrane material preferred for in situ glucose sensors. Unfortunately, surface properties of Nafion promote random protein adsorption and eventual foreign body encapsulation thus leading to loss of glucose signal over time. Here we detail surface modifications made
Yongguang Zhang et al.
Nanoscale research letters, 9(1), 137-137 (2014-03-25)
A novel sulfur/graphene nanosheet (S/GNS) composite was prepared via a simple ball milling of sulfur with commercial multi-layer graphene nanosheet, followed by a heat treatment. High-resolution transmission and scanning electronic microscopy observations showed the formation of irregularly interlaced nanosheet-like structure
Emily E Fenn et al.
Journal of the American Chemical Society, 131(15), 5530-5539 (2009-03-28)
Poly(ethylene) oxide (PEO) is a technologically important polymer with a wide range of applications including ion-exchange membranes, protein crystallization, and medical devices. PEO's versatility arises from its special interactions with water. Water molecules may form hydrogen-bond bridges between the ether
Luisa M Szott et al.
Journal of biomedical materials research. Part A, 95(4), 1252-1260 (2010-10-13)
The role of complement C3 in mediating adhesion of monocytes to plasma deposited tetraglyme surfaces was studied. Although fibrinogen (Fg) is usually considered the main factor in mediating phagocyte attachment, plasma deposited PEO-like tetraethylene glycol dimethyl ether (tetraglyme) coatings that
Min Zhang et al.
Journal of biomedical materials research. Part A, 89(3), 791-803 (2008-05-23)
Previous studies have showed that radio-frequency plasma deposited tetraglyme coatings greatly reduced fibrinogen adsorption (Gamma(Fg)) from highly diluted plasmas (0.1 and 1%) and subsequent platelet adhesion under static conditions. In this study, the protein resistant properties of tetraglyme were re-examined
Thelma I Valdes et al.
Biointerphases, 6(2), 43-53 (2011-07-05)
An ideal surface for implantable glucose sensors would be able to evade the events leading to chronic inflammation and fibrosis, thereby extending its utility in an in vivo environment. Nafion™, a perfluorinated ionomer, is the membrane material preferred for in
Luisa Mayorga Szott et al.
Journal of biomedical materials research. Part A, 96(1), 150-161 (2010-11-26)
Nonspecific protein adsorption, particularly fibrinogen (Fg), is thought to be an initiating step in the foreign body response (FBR) to biomaterials by promoting phagocyte attachment. In previous studies, we therefore prepared radiofrequency glow discharge (ethylene oxide)-like tetraglyme (CH(3)O(CH(2)CH(2)O)(4)CH(3)) coatings adsorbing
Mingchao Shen et al.
Journal of biomaterials science. Polymer edition, 13(4), 367-390 (2002-08-06)
Polyethylene oxide (PEO) surfaces reduce non-specific protein and cell interactions with implanted biomaterials and may improve their biocompatibility. PEO-like polymerized tetraglyme surfaces were made by glow discharge plasma deposition onto fluorinated ethylene propylene copolymer (FEP) substrates and were shown to
Adam L Sturlaugson et al.
The journal of physical chemistry. B, 114(16), 5350-5358 (2010-04-09)
Optical heterodyne-detected optical Kerr effect (OHD-OKE) experiments and pulsed field-gradient spin-echo NMR (PFGSE-NMR) experiments were performed to measure the rotational and translational diffusion constants of a polyether, tetraethylene glycol dimethyl ether (TEGDE), in binary mixtures with water over concentrations ranging
Malinda Salim et al.
Electrophoresis, 30(11), 1877-1887 (2009-06-12)
This paper presents a study of EOF properties of plasma-polymerized microchannel surfaces and the effects of protein (fibrinogen and lysozyme) adsorption on the EOF behavior of the surface-modified microchannels. Three plasma polymer surfaces, i.e. tetraglyme, acrylic acid and allylamine, are
M Shen et al.
Journal of biomaterials science. Polymer edition, 12(9), 961-978 (2002-01-15)
Monocytes and macrophages play important roles in host responses to implanted biomedical devices. Monocyte and macrophage interactions with biomaterial surfaces are thought to be mediated by adsorbed adhesive proteins such as fibrinogen and fibronectin. Non-fouling surfaces that minimize protein adsorption
Jiri Pinkas et al.
Ultrasonics sonochemistry, 15(3), 257-264 (2007-05-18)
Amorphous nanoscopic iron(III) oxide with interesting magnetic properties was prepared by sonolysis of Fe(acac)(3) under Ar in tetraglyme with a small amount of added water. The organics content and the surface area of the Fe(2)O(3) nanoparticles can be controlled with
Christopher H Dalton et al.
Journal of applied toxicology : JAT, 35(5), 543-550 (2014-09-16)
The risk of penetrating, traumatic injury occurring in a chemically contaminated environment cannot be discounted. Should a traumatic injury be contaminated with a chemical warfare (CW) agent, it is likely that standard haemostatic treatment options would be complicated by the
Rajeev S Assary et al.
ChemSusChem, 6(1), 51-55 (2012-12-05)
Crosstown traffic: Further development of Li-O(2) batteries may eventually lead to their use in transportation applications. One problem that needs to be addressed is electrolyte decomposition, which has been partially mitigated by using ether- rather than carbonate-based solvents. The influence
A Goessl et al.
Journal of biomaterials science. Polymer edition, 12(7), 739-753 (2001-10-06)
In this study we present methods to physico-chemically modify micropatterned cell culture substrates that were manufactured using plasma lithography to incorporate affinity structures for specific cell binding. The surfaces consist of a pattern of a fluorocarbon plasma polymer with feature
Sheryl R Kane et al.
Journal of materials science. Materials in medicine, 21(4), 1037-1045 (2010-01-22)
The predominant cause of late-state failure of total hip replacements is wear-mediated osteolysis caused by wear particles that originate from the ultrahigh molecular weight polyethylene (UHMWPE) acetabular cup surface. One strategy for reducing wear particle formation from UHMWPE is to
Lan Cao et al.
Journal of biomedical materials research. Part A, 81(4), 827-837 (2007-01-20)
The ability of tetraethylene glycol dimethyl ether (tetraglyme) plasma deposited coatings exhibiting ultralow fibrinogen adsorption to reduce blood activation was studied with six in vitro methods, namely fibrinogen and von Willebrand's factor adsorption, total protein adsorption, clotting time in recalcified
T Huybrechts et al.
Journal of chromatography. A, 922(1-2), 207-218 (2001-08-07)
A recently developed method for the sampling and analysis of volatile organic compounds in air has been evaluated. The system is based on the enrichment of analytes in tetraethylene glycol dimethyl ether or tetraglyme, a water-soluble organic liquid. The subsequent
A Goessl et al.
Journal of biomaterials science. Polymer edition, 12(7), 721-738 (2001-10-06)
Plasma lithography, combining plasma deposition with photolithography, is described as a versatile method to manufacture all-polymeric substrates with thin-film patterns for applications in biomedical engineering. Patterns of a hydrophobic fluorocarbon plasma polymer with feature sizes between 5 and 100 microm
Gautam Mishra et al.
Langmuir : the ACS journal of surfaces and colloids, 26(5), 3720-3730 (2009-12-03)
Physical and photolithographic techniques are commonly used to create chemical patterns for a range of technologies including cell culture studies, bioarrays and other biomedical applications. In this paper, we describe the fabrication of chemical micropatterns from commonly used plasma polymers.
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