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显示 1-30 共 118 条结果 关于 "440159" 范围 论文
Sina Youssefian et al.
Journal of the mechanical behavior of biomedical materials, 18, 1-11 (2012-12-15)
Using stainless steel 316L for drug-eluting stents needs specific surface finishing due to corrosion phenomena that take place on the metal surface upon prolonged contact with human tissue. Poly (o-chloro-p-xylylene) (Parylene C) is one of the inert and biocompatible materials
Natasha Buwa et al.
FEBS letters, 595(4), 532-547 (2020-12-15)
Integrin-mediated adhesion regulates cellular responses to changes in the mechanical and biochemical properties of the extracellular matrix. Cell-matrix adhesion regulates caveolar endocytosis, dependent on caveolin 1 (Cav1) Tyr14 phosphorylation (pY14Cav1), to control anchorage-dependent signaling. We find that cell-matrix adhesion regulates
Cristina Martin et al.
Biochemical engineering journal, 53(2), 216-222 (2011-01-25)
A novel miniaturized system has been developed for measuring protein-protein interactions in solution with high efficiency and speed, and minimal use of protein. A chromatographic monolith synthesized in a capillary is used in the method to make interaction measurements by
Hongwei Wang et al.
Journal of chromatography. A, 1410, 110-117 (2015-08-04)
Monolithic poly(methacrylate epoxy cyclosiloxane-co-polyhedral oligomeric silsesquioxanes) (epoxy-MA-POSS) capillary columns have been prepared via either photo- or thermally-initiated polymerization of the corresponding monomers using a 1-propanol/PEG 400 mixture as porogens. Photochemical polymerization was accomplished by irradiation of the UV-transparent capillary for
Jianwen Hao et al.
Journal of hazardous materials, 244-245, 348-356 (2012-12-29)
By changing -COOH content in poly(acrylic acid-co-methacryloxypropyl trimethoxy silane (poly(AA-co-γ-MPS)), a series of PVA/SiO(2) cation exchange membranes are prepared from sol-gel process of poly(AA-co-γ-MPS) in presence of poly(vinyl alcohol) (PVA). The membranes have the initial decomposition temperature (IDT) values of
Fei Liu et al.
American journal of physiology. Lung cellular and molecular physiology, 308(4), L344-L357 (2014-12-17)
Pathological fibrosis is driven by a feedback loop in which the fibrotic extracellular matrix is both a cause and consequence of fibroblast activation. However, the molecular mechanisms underlying this process remain poorly understood. Here we identify yes-associated protein (YAP) (homolog
Nívea Regina de Godoy Fróes-Salgado et al.
Odontology, 103(2), 160-168 (2014-04-15)
This study evaluated the effect of the combination of two dimethacrylate-based monomers [bisphenol A diglycidyl dimethacrylate (BisGMA) or bisphenol A ethoxylated dimethacrylate (BisEMA)] with diluents either derived from ethylene glycol dimethacrylate (ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate
P Guillamat et al.
Nature communications, 8(1), 564-564 (2017-09-17)
Active matter embraces systems that self-organize at different length and time scales, often exhibiting turbulent flows apparently deprived of spatiotemporal coherence. Here, we use a layer of a tubulin-based active gel to demonstrate that the geometry of active flows is
Chi-Chih Kang et al.
Nature protocols, 11(8), 1508-1530 (2016-07-29)
This protocol describes how to perform western blotting on individual cells to measure cell-to-cell variation in protein expression levels and protein state. Like conventional western blotting, single-cell western blotting (scWB) is particularly useful for protein targets that lack selective antibodies
Haitham Askar et al.
Journal of dentistry, 43(7), 832-838 (2015-03-15)
Infiltrants are non-filled low-viscosity resins that have been developed to arrest lesion progression by penetrating into the porosities of non-cavitated lesions where they are hardened and arrest lesion progression. The addition of fillers to infiltrant resin might combine the high
Junmin Lee et al.
Science advances, 6(21), eaaz5913-eaaz5913 (2020-06-05)
Despite great progress in biomaterial design strategies for replacing damaged articular cartilage, prevention of stem cell-derived chondrocyte hypertrophy and resulting inferior tissue formation is still a critical challenge. Here, by using engineered biomaterials and a high-throughput system for screening of
Hwanseok Jang et al.
Journal of visualized experiments : JoVE, (152) (2019-10-29)
Cells change migration patterns in response to chemical stimuli, including the gradients of the stimuli. Cellular migration in the direction of a chemical gradient, known as chemotaxis, plays an important role in development, the immune response, wound healing, and cancer
Andrew C Payne et al.
Science (New York, N.Y.), 371(6532) (2021-01-02)
Understanding genome organization requires integration of DNA sequence and three-dimensional spatial context; however, existing genome-wide methods lack either base pair sequence resolution or direct spatial localization. Here, we describe in situ genome sequencing (IGS), a method for simultaneously sequencing and
Christopher A Werley et al.
PloS one, 12(3), e0172671-e0172671 (2017-03-24)
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) are a promising platform for cardiac studies in vitro, and possibly for tissue repair in humans. However, hiPSC-CM cells tend to retain morphology, metabolism, patterns of gene expression, and electrophysiology similar to that
Danqing Liu et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(13), 3880-3885 (2015-03-17)
In this work we propose randomly ordered polydomain nematic liquid crystal polymer networks to reversibly generate notable jagged relief patterns at a polymer coating surface by light illumination. The domain size is controlled by the addition of traces of partly
Saleh Zidan et al.
Materials (Basel, Switzerland), 14(12) (2021-07-03)
Objectives: The objective of this study was to investigate the mechanical properties of high-impact (HI) heat-cured acrylic resin (PMMA) reinforced with silane-treated zirconia nanoparticles. Methods: Forty-five PMMA specimens reinforced with zirconia were fabricated and divided into three groups: Pure HI
Saleh Zidan et al.
Materials (Basel, Switzerland), 12(8) (2019-04-28)
Acrylic resin PMMA (poly-methyl methacrylate) is used in the manufacture of denture bases but its mechanical properties can be deficient in this role. This study investigated the mechanical properties (flexural strength, fracture toughness, impact strength, and hardness) and fracture behavior
Renata Garcia Fonseca et al.
The journal of adhesive dentistry, 14(5), 453-459 (2012-04-21)
To evaluate the effect of surface treatments on the shear bond strength (SBS) of a resin cement to commercially pure titanium (CP Ti). Two hundred cast CP Ti disks were divided into 5 groups (n = 40), which were treated
Zachary M Geisterfer et al.
Current biology : CB, 30(15), 3016-3023 (2020-06-13)
The microtubule cytoskeleton plays critically important roles in numerous cellular functions in eukaryotes, and it does so across a functionally diverse and morphologically disparate range of cell types [1]. In these roles, microtubule assemblies must adopt distinct morphologies and physical
Guillaume Jacquemet et al.
Current biology : CB, 29(2), 202-216 (2019-01-15)
Filopodia are adhesive cellular protrusions specialized in the detection of extracellular matrix (ECM)-derived cues. Although ECM engagement at focal adhesions is known to trigger the recruitment of hundreds of proteins ("adhesome") to fine-tune cellular behavior, the components of the filopodia
M Ozcan et al.
Operative dentistry, 36(5), 563-566 (2011-08-13)
This clinical report describes a repair protocol for cusp fracture of a failed amalgam-dentin complex. A maxillary right first premolar with an amalgam restoration presented a buccal cusp fracture. Chairside repair has been undertaken by conditioning the existing amalgam restoration
Hiroyasu Koizumi et al.
The journal of adhesive dentistry, 14(4), 385-392 (2012-01-28)
This study evaluated and compared bonding characteristics of resin-based luting agents and special ceramic primers to zirconia. Disk specimens (n = 242) were fabricated from zirconium dioxide ceramics (Katana) and bonded with four resin-based luting agents without priming. In addition
Jiangdong Dai et al.
Journal of hazardous materials, 205-206, 179-188 (2012-01-21)
In the work, we reported an effective method for the preparation of molecularly imprinted nanoparticles with superparamagnetic susceptibility through atom transfer radical emulsion polymerization (ATREP), and then as-prepared magnetic molecularly imprinted nanoparticles (MMINs) were evaluated as adsorbents for selective recognition
Pankaj Aggarwal et al.
Journal of chromatography. A, 1364, 96-106 (2014-09-07)
Highly cross-linked monolithic networks (i.e., polyethylene glycol diacrylate, PEGDA) synthesized from monomers containing varying ethylene oxide chain lengths were fabricated inside fused silica capillary columns for use in liquid chromatography (LC) of small molecules. Tergitol was used as a surfactant
Juyeol Bae et al.
Nature communications, 10(1), 3209-3209 (2019-07-22)
Liquid foam consists of liquid film networks. The films can be thinned to the nanoscale via evaporation and have potential in bottom-up material structuring applications. However, their use has been limited due to their dynamic fluidity, complex topological changes, and
Chen Chen et al.
The journal of adhesive dentistry, 16(2), 169-176 (2014-04-01)
To evaluate the effects of a commercial zirconia primer (Choice or RelyX Unicem) on shear bond strength (SBS) of two different resin composite cements - Choice (a conventional bis-GMA-based resin cement) and RelyX Unicem (self-adhesive resin cement) - to zirconia.
Na Huang et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 15(9), 1785-1792 (2014-05-28)
Composite hydrogels--macroscopic hydrogels with embedded microgel particles--are expected to respond to external stimuli quickly because microgels swell much faster than bulky gels. In this work, the kinetics of the pH-induced swelling of a composite hydrogel are studied using turbidity measurements.
Hyunwoo Yuk et al.
Nature materials, 15(2), 190-196 (2015-11-10)
In many animals, the bonding of tendon and cartilage to bone is extremely tough (for example, interfacial toughness ∼800 J m(-2); refs ,), yet such tough interfaces have not been achieved between synthetic hydrogels and non-porous surfaces of engineered solids. Here, we report
Helen N Schwerdt et al.
Lab on a chip, 17(6), 1104-1115 (2017-02-25)
Dysregulation of neurochemicals, in particular, dopamine, is epitomized in numerous debilitating disorders that impair normal movement and mood aspects of our everyday behavior. Neurochemical transmission is a neuron-specific process, and further exhibits region-specific signaling in the brain. Tools are needed
Christie Ying Kei Lung et al.
Dental materials : official publication of the Academy of Dental Materials, 28(8), 863-872 (2012-06-05)
To evaluate and compare three novel coupling agents: 2-hydroxyethyl methacrylate, itaconic acid and oleic acid to two silane coupling agents, one commercial silane product and 3-acryloxypropyltrimethoxysilane on the bond durability of resin composite to zirconia. Zirconia samples were silica-coated by
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