Showing 1-30 of 145 results for "196118"
Eric L Kendall et al.
Biomicrofluidics, 8(4), 044109-044109 (2014-11-08)
A technique for microfluidic, pH modulated DNA capture and purification using chitosan functionalized glycidyl methacrylate monoliths is presented. Highly porous polymer monoliths are formed and subsequently functionalized off-chip in a batch process before insertion into thermoplastic microchannels prior to solvent...
Alexa S Kuenstler et al.
Advanced materials (Deerfield Beach, Fla.), 32(17), e2000609-e2000609 (2020-03-17)
Liquid crystal elastomers (LCEs) are an attractive platform for dynamic shape-morphing due to their ability to rapidly undergo large deformations. While recent work has focused on patterning the director orientation field to achieve desired target shapes, this strategy cannot be...
Marieta L C Passos et al.
The Analyst, 145(7), 2701-2708 (2020-02-20)
In this work, two solid-phases based on imidazolium-based ionic liquids were obtained and characterized for solid-phase extraction of fluoroquinolones. The process of immobilization was performed replacing a toxic reagent by UV-irradiation to get a harmless process. The obtained solid-phases were...
Jianyu Tong et al.
ACS applied materials & interfaces, 11(9), 9317-9325 (2019-02-09)
In recent years, lead halide perovskite nanocrystals (NCs) have attracted significant attention in both fundamental research and commercial applications because of their excellent optical and optoelectrical properties. However, the protective ligands on the surface of the perovskite NCs could be...
Michael Samsom et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 106(5), 1818-1826 (2017-09-16)
Contact lens friction significantly correlates with subjective comfort. Hyaluronan (HA) and proteoglycan 4 (PRG4) are natural boundary lubricants present in the body. The objective of this study was to assess the effect of crosslinked HA into the bulk of model...
Prashant Agrawal et al.
ACS applied materials & interfaces, 11(31), 28327-28335 (2019-07-11)
Digital microfluidics employs water-repellant surfaces to exquisitely manipulate droplets of water for chemical analysis. However, the actuation and manipulation of organic droplets is still relatively unexplored as it is significantly more difficult to synthesize organic-repellent surfaces compared to water-repellent surfaces....
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...
Kyungmo Sung et al.
Journal of colloid and interface science, 564, 113-123 (2020-01-09)
Nacre-like polymer/clay nanocomposites are a fascinating material thanks to its superior mechanical property. However, it has been a great challenge to incorporate hydrophobic polymer components due to highly hydrophilic nature of clay, which limits further improvement of water-resistance and addition...
Richard P Witte et al.
Journal of biomedical materials research. Part A, 71(3), 508-518 (2004-09-24)
Semi-interpenetrating polymer networks (semi-IPNs) containing poly(ethylene glycol)-diacrylate (PEGdA) and modified gelatin were prepared with 2,2-dimethoxy-2-phenylacetophenone (DMPA) as a photoinitiator. The effect of (i) initiator and PEGdA concentration, and (ii) weight ratio and type of modified gelatin on the conversion of...
Miklós Bege et al.
Organic & biomolecular chemistry, 15(43), 9226-9233 (2017-11-01)
Sugar-modified nucleosides are prime synthetic targets in anticancer and antiviral drug development. Radical mediated thiol-ene coupling was applied for the first time on nucleoside enofuranoside derivatives to produce a broad range of thio-substituted d-ribo, -arabino, -xylo and l-lyxo configured pyrimidine...
Tomoyuki Yokota et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(47), 14533-14538 (2015-11-11)
We report a fabrication method for flexible and printable thermal sensors based on composites of semicrystalline acrylate polymers and graphite with a high sensitivity of 20 mK and a high-speed response time of less than 100 ms. These devices exhibit...
Tugce Nihal Gevrek et al.
Polymers, 12(6) (2020-05-30)
Multifunctionalizable hydrogel coatings on titanium interfaces are useful in a wide range of biomedical applications utilizing titanium-based materials. In this study, furan-protected maleimide groups containing multi-clickable biocompatible hydrogel layers are fabricated on a titanium surface. Upon thermal treatment, the masked...
Mariana R Gama et al.
Journal of chromatographic science, 55(4), 398-404 (2016-12-21)
Capillary columns containing butyl or lauryl methacrylate monoliths were prepared using two different free-radical polymerization methods: conventional free-radical polymerization and controlled/living free-radical polymerization, both initiated thermally, and these methods were compared for the first time. Both monolith morphology and chromatographic...
K Van Den Houwe et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 34(7), 1261-1269 (2017-05-18)
Contaminants in food packaging are a challenge of our time since the packaging material itself has been found to represent a source of food contamination through the migration of substances from it. Before first use, packaging materials destined for the...
Marta Goliszek et al.
Polymers, 12(5) (2020-05-23)
The preparation and the thermal and mechanical characteristics of lignin-containing polymer biocomposites were studied. Bisphenol A glycerolate (1 glycerol/phenol) diacrylate (BPA.GDA) was used as the main monomer, and butyl acrylate (BA), 2-ethylhexyl acrylate (EHA) or styrene (St) was used as...
Alfin Leo et al.
Sensors (Basel, Switzerland), 10(2), 1338-1354 (2010-01-01)
Pressure measurement in high temperature environments is important in many applications to provide valuable information for performance studies. Information on pressure patterns is highly desirable for improving performance, condition monitoring and accurate prediction of the remaining life of systems that...
Te Hu et al.
Journal of colloid and interface science, 569, 114-127 (2020-02-28)
The use of stabilizer with designer structures can effectively promote graphite exfoliation in common solvents to render functionalized graphene desirable for their various applications. Herein, a hyperbranched polyethylene copolymer, HBPE@Py@Acryl, simultaneously bearing multiple pyrene terminal groups and pendant acryloyl moieties...
Anne-Sophie Mertgen et al.
ACS applied materials & interfaces, 12(19), 21342-21367 (2020-04-15)
In the human body, cells in a tissue are exposed to signals derived from their specific extracellular matrix (ECM), such as architectural structure, mechanical properties, and chemical composition (proteins, growth factors). Research on biomaterials in tissue engineering and regenerative medicine...
Maria Nerantzaki et al.
Materials (Basel, Switzerland), 11(10) (2018-10-20)
In the present study, the newly synthesized castor oil-derived thioether-containing ω-hydroxyacid (TEHA) block copolymers with polycaprolactone (TEHA-b-PCL), with methoxypoly(ethylene glycol) (mPEG), (TEHA-b-mPEG) and with poly(ethylene glycol) (PEG) (TEHA-b-PEG-b-TEHA), were investigated as polymeric carriers for fabrication of naltrexone (NLX)-loaded microspheres by...
Deianira Lanteri et al.
Frontiers in chemistry, 8, 85-85 (2020-03-03)
Dye-sensitized photooxygenation reaction of bio-based double bond-containing substrates is proposed as sustainable functionalization of terpenes and terpenoids to transform them into polyoxygenated compounds to be employed for the synthesis of new bio-based polyesters. As proof of concept, citronellol 1 has...
Jae Suk Park et al.
Micromachines, 11(4) (2020-04-16)
Recently introduced nanoscale electrokinetic phenomenon called ion concentration polarization (ICP) has been suffered from serious pH changes to the sample fluid. A number of studies have focused on the origin of pH changes and strategies for regulating it. Instead of...
Mukul Sonker et al.
Electrophoresis, 38(13-14), 1743-1754 (2017-03-09)
Integration in microfluidics is important for achieving automation. Sample preconcentration integrated with separation in a microfluidic setup can have a substantial impact on rapid analysis of low-abundance disease biomarkers. Here, we have developed a microfluidic device that uses pH-mediated solid-phase...
Jingyao Bai et al.
Journal of chromatography. A, 1498, 37-45 (2016-12-25)
A macroporous hydrophilic organic-silica hybrid monolithic column was synthesized via photoinitiated thiol-ene click polymerization reaction of 1-thioglycerol-modified polyhedral oligomeric vinylsilsesquioxane (vinylPOSS) and dithiothreitol (DTT) in a binary porogenic system consisting of tetrahydrofuran (THF) and dodecanol. 1-Thioglycerol was used to modify...
Eyal Karzbrun et al.
Nature physics, 14(5), 515-522 (2018-05-16)
Human brain wrinkling has been implicated in neurodevelopmental disorders and yet its origins remain unknown. Polymer gel models suggest that wrinkling emerges spontaneously due to compression forces arising during differential swelling, but these ideas have not been tested in a...
Ameya R Narkar et al.
Langmuir : the ACS journal of surfaces and colloids, 34(32), 9410-9417 (2018-07-24)
Up to 30 mol % of acrylic acid (AAc) was incorporated into a pH-responsive smart adhesive consisting of dopamine methacrylamide and 3-acrylamido phenylboronic acid. Fourier transform infrared spectroscopy and rheometry confirmed that the incorporation of AAc shifted the pH of...
Randy M Wadkins et al.
Journal of medicinal chemistry, 48(8), 2906-2915 (2005-04-15)
Carboxylesterases (CE) are ubiquitous enzymes responsible for the metabolism of xenobiotics. Because the structural and amino acid homology among esterases of different classes, the identification of selective inhibitors of these proteins has proved problematic. Using Telik's target-related affinity profiling (TRAP)...
Hao Meng et al.
Acta biomaterialia, 17, 160-169 (2015-02-14)
To decouple the extracellular oxidative toxicity of catechol adhesive moiety from its intracellular non-oxidative toxicity, dopamine was chemically bound to a non-degradable polyacrylamide hydrogel through photo-initiated polymerization of dopamine methacrylamide (DMA) with acrylamide monomers. Network-bound dopamine released cytotoxic levels of...
Mohamed Elsherif et al.
Biosensors & bioelectronics, 137, 25-32 (2019-05-12)
Continuous glucose monitoring facilitates the stringent control of blood glucose concentration in diabetic and intensive care patients. Optical fibers have emerged as an attractive platform; however, their practical applications are hindered due to lack of biocompatible fiber materials, complex and...
Xiuzhong Zhu et al.
Polymers, 11(5) (2019-05-19)
In this study, a new pH-tunable thermoresponsive hydroxyl-terminated hyperbranched polyether (HTHP 2) was successfully prepared via a one-pot cationic polymerization technique and postmodification. In the first step, hydroxyl-terminated hyperbranched polyether containing double bonds (HTHP 1) were synthesized. Then, through thiol-ene...
Bingjie Wang et al.
Chemical Society reviews, 46(3), 855-914 (2017-01-21)
This article provides an up-to-date highly comprehensive overview (594 references) on the state of the art of the synthesis and design of macroporous materials using microfluidics and their applications in different fields.

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