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Showing 1-30 of 116 results for "440159" within Papers
Ghadeer F Abu-Alsoud et al.
Journal of chromatography. A, 1629, 461463-461463 (2020-08-26)
Cross-reactivity is an important feature of molecularly imprinted polymers (MIPs), and is central to successful use of a pseudo-template in molecular imprinting. The adsorption and cross-reactivity of a molecularly imprinted polymer (MIP) designed for recognition of phenols from water was
Wan-Ling Liu et al.
Journal of chromatography. A, 1395, 32-40 (2015-04-15)
In this study, an organic polymer monolithic columns, which were prepared via in situ polymerization of alkyl methacrylate-ester (AMA), divinylbenzene (DVB) and vinylbenzyl trimethylammonium chloride (VBTA, charged monomer), were developed as adsorbent for solid-phase microextraction (SPME). Different parameters affecting the
Dariusz Lachowski et al.
Cancers, 13(13) (2021-07-03)
The tumor microenvironment plays a critical role in modulating cancer cell migration, metabolism, and malignancy, thus, highlighting the need to develop in vitro culture systems that can recapitulate its abnormal properties. While a variety of stiffness-tunable biomaterials, reviewed here, have
Matrix stiffness mechanically conditions EMT and migratory behavior of oral squamous cell carcinoma.
Bibiana F Matte et al.
Journal of cell science, 132(1) (2018-12-19)
Tumors are composed of heterogeneous phenotypes, each having different sensitivities to the microenvironment. One microenvironment characteristic - matrix stiffness - helps to regulate malignant transformation and invasion in mammary tumors, but its influence on oral squamous cell carcinoma (OSCC) is
Rainer Koeck et al.
Analytical and bioanalytical chemistry, 406(24), 5897-5907 (2014-07-25)
Short-term polymerization or the so-called low-conversion polymerization was applied for the preparation of N-vinylcarbazole (NVC) and 1,4-divinylbenzene (DVB) monolithic capillary columns. The synthesis was carried out by thermally initiated free radical copolymerization under the influence of inert micro- (toluene) and
M Özcan et al.
Operative dentistry, 38(1), 63-72 (2012-07-21)
Service life of discolored and abraded resin composite restorations could be prolonged by repair or relayering actions. Composite-composite adhesion can be achieved successfully using some surface conditioning methods, but the most effective adhesion protocol for relayering is not known when
Saleh Zidan et al.
Materials (Basel, Switzerland), 13(17) (2020-08-28)
Exposure of denture base acrylic resins to the oral environment and storage media for extended periods of time results in sorption of saliva or water, leading to a reduction in physical properties and thus clinical service life. The purpose of
F M Collares et al.
International endodontic journal, 45(1), 63-67 (2011-09-09)
To evaluate the effect of different concentrations of nanostructured hydroxyapatite on the radiopacity, flow and film thickness of an experimental root canal sealer. An experimental dual-cured root canal sealer was produced with a methacrylate-based co-monomer blend. Nanostructured hydroxyapatite/calcium tungstate solutions
Kristine Y Tan et al.
The Analyst, 145(10), 3732-3741 (2020-04-30)
In an open microfluidic device, we investigate protein polyacrylamide gel electrophoresis (PAGE) separation performance on single-cell lysate. Single-cell protein electrophoresis is performed in a thin layer of polyacrylamide (PA) gel into which microwells are molded. Individual cells are isolated in
Caroline Cvetkovic et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(28), 10125-10130 (2014-07-02)
Combining biological components, such as cells and tissues, with soft robotics can enable the fabrication of biological machines with the ability to sense, process signals, and produce force. An intuitive demonstration of a biological machine is one that can produce
Hui Lin et al.
Journal of chromatography. A, 1379, 34-42 (2014-12-30)
A facile approach based on thiol-methacrylate Michael addition click reaction was developed for construction of porous hybrid monolithic materials. Three hybrid monoliths were prepared via thiol-methacrylate click polymerization by using methacrylate-polyhedral oligomeric silsesquioxane (POSS) (cage mixture, n=8, 10, 12, POSS-MA)
Mohammad Mahdi Moein et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 967, 168-173 (2014-08-12)
In situ monolithic molecularly imprinted polymer sol-gel packed tips (MMSTs) were prepared and evaluated for the extraction of lung cancer biomarker L-tyrosine (Tyr) from human plasma and urine samples. Several extraction parameters such as the conditioning, washing and elution solutions
Mohammad Atai et al.
Dental materials : official publication of the Academy of Dental Materials, 28(2), 133-145 (2011-12-06)
The study evaluates properties of an experimental dental composite consisting of a porous thermally sintered nano-silica as filler. The properties are compared with those of an experimental composite containing micro fillers and a commercially available nano-composite, Filtek Supreme(®) Translucent. Different
Chen Ma et al.
Talanta, 209, 120526-120526 (2020-01-02)
A fast and robust approach was developed to fabricate and modify hybrid monolithic columns via two-step photo-initiated reactions. At first, acrylopropyl polyoctahedral silsesquioxane (acryl-POSS) and 3-(triallyl silyl) propyl acrylate (TAPA) were chosen as precursors to synthesize poly (POSS-co-TAPA) monolithic column
Chiara Finetti et al.
Talanta, 147, 397-401 (2015-11-26)
In this work, we demonstrate the efficacy of a Quantum Dot (QD) mass label strategy to enhance sensitivity in an interferometric technique called interferometric reflectance imaging sensor (IRIS). This biomass detection platform confers the advantage of absolute mass quantification and
Manando Nakasaki et al.
Nature communications, 6, 8574-8574 (2015-10-16)
Fibrosis is a pervasive disease in which the excessive deposition of extracellular matrix (ECM) compromises tissue function. Although the underlying mechanisms are mostly unknown, matrix stiffness is increasingly appreciated as a contributor to fibrosis rather than merely a manifestation of
Amalia Skarmoutsou et al.
Journal of the mechanical behavior of biomedical materials, 25, 48-62 (2013-06-04)
Bone tissue engineering has emerged as a promising alternative approach in the treatment of bone injuries and defects arising from malformation, osteoporosis, and tumours. In this approach, a temporary scaffold possessing mechanical properties resembling those of natural bone is needed
Alphonsus H C Ng et al.
Nature communications, 6, 7513-7513 (2015-06-25)
We report a new technique called Digital microfluidic Immunocytochemistry in Single Cells (DISC). DISC automates protocols for cell culture, stimulation and immunocytochemistry, enabling the interrogation of protein phosphorylation on pulsing with stimulus for as little as 3 s. DISC was used
Hisatomo Suzuki et al.
Colloids and surfaces. B, Biointerfaces, 94, 107-113 (2012-02-22)
A random copolymer of zwitterionic monomer, carboxymethylbetaine (CMB), and 3-methacryloyloxypropyl trimethoxysilane was prepared in ethanol using 2,2'-azobisisobutyronitrile as initiator. The incubation of ethanol solution of the copolymer with a glass plate gave a layer of the copolymer with a thickness
Jing Zhao et al.
Acta biomaterialia, 16, 94-102 (2015-02-01)
Polymeric micelles with cell outer membrane mimetic structure were prepared in water from amphiphilic random copolymers bearing both the hydrophilic phosphorylcholine zwitterions and hydrophobic octadecyl side chains of cell outer membrane. The polymeric micelles showed sizes ranging from 80 nm
Lei Tan et al.
Journal of chromatography. A, 1411, 69-76 (2015-08-11)
The major challenges in measuring plasma renin activity (PRA) stem from the complexity of biological matrix, as well as from the instability and low circulating concentration of angiotensin. In this study, an ultra-high performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) based
Marwa Ahmed et al.
Journal of chromatography. A, 1360, 100-109 (2014-08-19)
Single-walled carbon nanotubes were encapsulated into different polymer-based monolithic backbones. The polymer monoliths were prepared via the copolymerization of 20% monomers, glycidyl methacrylate, 20% ethylene glycol dimethacrylate and 60% porogens (36% 1-propanol, 18% 1,4-butanediol) or 16.4% monomers (16% butyl methacrylate
Christopher A Werley et al.
Biomedical optics express, 8(12), 5794-5813 (2018-01-04)
The rapid increase in the number and quality of fluorescent reporters and optogenetic actuators has yielded a powerful set of tools for recording and controlling cellular state and function. To achieve the full benefit of these tools requires improved optical
Pau Guillamat et al.
Proceedings of the National Academy of Sciences of the United States of America, 113(20), 5498-5502 (2016-05-04)
Living cells sense the mechanical features of their environment and adapt to it by actively remodeling their peripheral network of filamentary proteins, known as cortical cytoskeleton. By mimicking this principle, we demonstrate an effective control strategy for a microtubule-based active
Eva Kolb et al.
Journal of materials science. Materials in medicine, 22(10), 2165-2173 (2011-08-16)
Scan-LED-technology is a new rapid prototyping technique with increasing applications in the production of custom-made medical products. The present work is dealing with the examination of a silica/urethandimethacrylate (UDMA) nanocomposite for application in scan-LED-technology. The use of specific LED in
Andrew A Gill et al.
Biomedical microdevices, 17(2), 27-27 (2015-02-15)
This work reports first steps towards the development of artificial neural stem cell microenvironments for the control and assessment of neural stem cell behaviour. Stem cells have been shown to be found in specific, supportive microenvironments (niches) and are believed
Christie Ying Kei Lung et al.
Acta odontologica Scandinavica, 70(5), 405-413 (2012-03-10)
To study in vitro the effect of two cross-linking silanes, bis-1,2-(triethoxysilyl)ethane and bis[3-(trimethoxysilyl)propyl]amine, blended with an organofunctional silane coupling agent, (3-acryloxypropyl)trimethoxysilane, on the shear bond strength between resin-composite cement and silicatized zirconia after dry storage and thermocycling. Six tested groups
Guoqiang Liu et al.
Small (Weinheim an der Bergstrasse, Germany), 11(23), 2807-2816 (2015-02-05)
A facile route to fabricate a nanocomposite of Fe3O4@poly[N-isopropylacrylamide (NIPAM)-co-2-(dimethylamino)ethyl methacrylate (DMAEMA)]@Au (Fe3O4@PND@Au) is developed for magnetically recyclable and thermally tunable catalysis. The negatively charged Au nanoparticles with an average diameter of 10 nm are homogeneously loaded onto positively charged
Ahmad Aqel et al.
Journal of chromatographic science, 52(3), 201-210 (2013-02-21)
This paper describes the comprehensive fabrication of monolithic materials for use as stationary phases in capillary liquid chromatography. Several columns were synthesized in the confines of 320 µm i.d. fused-silica capillaries by single-step in situ copolymerization of benzyl methacrylate and
Mutlu Ozcan et al.
General dentistry, 60(1), e6-e12 (2012-02-09)
This study evaluated the bond strength of two resin cements (Panavia F and Super Bond) to titanium after various surface conditioning techniques. The cements were applied using polyethylene tubes. After thermocycling, the specimens were tested in a universal testing machine
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