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Sung-Jin Kim et al.
Lab on a chip, 13(8), 1644-1648 (2013-02-23)
We present experiments and theory of a constant flow-driven microfluidic oscillator with widely tunable oscillation periods. This oscillator converts two constant input-flows from a syringe pump into an alternating, periodic output-flow with oscillation periods that can be adjusted to between
Carme Valls-Cantenys et al.
Analytica chimica acta, 770, 85-93 (2013-03-19)
An extraction and preconcentration procedure for the determination in water samples of several halogenated flame retardants (FRs), nine brominated diphenyls ethers (BDEs) and seven non-BDE FRs, was developed and validated. The optimised procedure is based on polydimethylsiloxane (PDMS) rods as
Daniela Karadzovska et al.
Cutaneous and ocular toxicology, 32(4), 283-289 (2013-04-18)
The membrane-coated fiber (MCF) array technique was previously demonstrated to be a rapid, quantitative assessment of the percutaneous absorption of volatile compounds, capable of studying chemical mixtures and their synergistic effects. In particular, three commercially available fiber coatings (polydimethylsiloxane, polyacrylate
Karthik R Balakrishnan et al.
Lab on a chip, 13(7), 1302-1307 (2013-02-07)
Resistive-pulse sensing (RPS), which is based on measuring the current pulse produced when a single particle transits a pore or channel, is an extremely versatile technique used to determine the size and concentration of cells and viruses and to detect
M C Prieto-Blanco et al.
The Science of the total environment, 503-504, 105-112 (2014-08-13)
This report describes a polydimethylsiloxane (PDMS)-thymol/nitroprusside delivery composite sensor for direct monitoring of ammonium in environmental water samples. The sensor is based on a PDMS support that contains the Berthelot's reaction reagents. To prepare the PDMS-thymol/nitroprusside composite discs, thymol and
Low-temperature atomic layer deposition of Al2O3 thin coatings for corrosion protection of steel: surface and electrochemical analysis.
Diaz B, et al.
Corrosion Science, 53(6), 2168-2175 (2011)
John R Fowler et al.
The Orthopedic clinics of North America, 44(3), 425-431 (2013-07-06)
Radial head fractures without associated bony or ligamentous injury can be safely treated with internal fixation, if possible, or arthroplasty if nonreconstructable. However, nonreconstructable radial head fractures in association with elbow dislocation and/or ligamentous injury in the elbow or forearm
Yuwei Liu et al.
Langmuir : the ACS journal of surfaces and colloids, 29(9), 2897-2905 (2013-02-12)
Poly(dimethylsiloxane) (PDMS) materials have been extensively shown to function as excellent fouling-release (FR) coatings in the marine environment. The incorporation of biocide moieties, such as quaternary ammonium salts (QAS), can impart additional antibiofouling properties to PDMS-based FR coating systems. In
Florent Badique et al.
Biomaterials, 34(12), 2991-3001 (2013-01-30)
We have recently demonstrated strong nuclear deformation of SaOs-2 osteosarcoma cells on poly-L-lactic acid (PLLA) micropillar substrates. In the present study, we first demonstrated that chemical and mechanical properties of the micropillar substrates have no dominant effect on deformation. However
M S Schlicht et al.
European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery, 46(4), 447-452 (2013-08-13)
This study was performed to determine the feasibility of measuring the elastic properties of the arterial wall in vivo. To prove this concept, elastic parameters were calculated from an aortic model of elastic behavior similar to a human aorta using
Sri Ram Krishna Vedula et al.
Nature materials, 13(1), 87-96 (2013-12-03)
The ability of skin to act as a barrier is primarily determined by the efficiency of skin cells to maintain and restore its continuity and integrity. In fact, during wound healing keratinocytes migrate collectively to maintain their cohesion despite heterogeneities
Lian-Jun Bao et al.
Environmental toxicology and chemistry, 32(9), 1946-1953 (2013-05-11)
Solid-phase microextraction (SPME) has often been used to estimate the freely dissolved concentration (Cfree ) of organic contaminants in sediments. A significant limitation in the application of SPME for Cfree measurement is the requirement for attaining equilibrium partition, which is
Thomas-Benjamin Seiler et al.
Chemosphere, 112, 77-84 (2014-07-23)
As part of the risk assessment process within REACh, prior to manufacturing and distribution of chemical substances their (eco)toxicological impacts have to be investigated. The fish embryo toxicity test (FET) with the zebrafish Danio rerio has gained a high significance
Sara Gonçalves et al.
Colloids and surfaces. B, Biointerfaces, 109, 228-235 (2013-05-11)
Poly(dimethyl siloxane) (PDMS) was surface-polymerized with poly(ethylene glycol)methacrylate (PEGMA) by surface-initiated atom transfer radical polymerization (SI-ATRP) in aqueous media at room temperature. Modification of the PDMS surface followed a three-step procedure: (i) PDMS surface hydroxylation by UV/ozone exposure, immediately followed
Mengting Chen et al.
Chemical communications (Cambridge, England), 49(16), 1612-1614 (2013-01-22)
We have manufactured a highly conductive and stretchable composite by backfilling a preformed graphene/MWCNT aerogel with poly(dimethylsiloxane) (PDMS). The electrical conductivity of our product can reach 2.8 S cm(-1) with only 1.3 wt% graphene/MWCNT loading, and remains constant after 100
Attila Gaspar et al.
Electrophoresis, 34(8), 1249-1252 (2013-02-13)
This paper demonstrates the use of surface plasmon resonance to study adsorption (either reversible or irreversible) of detergents on PDMS surfaces in real time. The surface plasmon resonance measurements can directly provide information about the adsorption/desorption processes of detergents on
Kristina Kreppenhofer et al.
Langmuir : the ACS journal of surfaces and colloids, 29(11), 3797-3804 (2013-02-23)
Here we demonstrate the generation of polymer monolithic surfaces possessing a gradient of pore and polymer globule sizes from ~0.1 to ~0.5 μm defined by the composition of two polymerization mixtures injected into a microfluidic chip. To generate the gradient
Editorial comment.
John M Gatti
The Journal of urology, 192(6), 1799-1800 (2014-08-30)
The future of microfluidics for biomarker detection.
Kazuo Hosokawa
Bioanalysis, 5(17), 2073-2075 (2013-08-22)
Cong Hu et al.
Journal of chromatography. A, 1356, 45-53 (2014-07-09)
In this work, metal-organic frameworks (MOFs, Al-MIL-53-NH₂) were synthesized via the hydrothermal method, and novel polydimethylsiloxane/metal-organic framework (PDMS/MOFs, PDMS/Al-MIL-53-NH₂)-coated stir bars were prepared by the sol-gel technique. The preparation reproducibility of the PDMS/MOFs-coated stir bar was good, with relative standard
M Findeisen et al.
Magnetic resonance in chemistry : MRC, 45(2), 175-178 (2006-12-13)
Most established NMR thermometers rely on temperature-dependent chemical shift differences measured from samples that are either neat or concentrated solutions (e.g. ethylene glycol, methanol). These are unsuitable for modern cryoprobes on account of strong radiation damping resulting from the high
M Krutyeva et al.
Physical review letters, 110(10), 108303-108303 (2013-03-26)
We present neutron spin echo experiments that address the much debated topic of dynamic phenomena in polymer melts that are induced by interacting with a confining surface. We find an anchored surface layer that internally is highly mobile and not
Daniel T Ginat et al.
JAMA otolaryngology-- head & neck surgery, 139(2), 199-201 (2013-02-23)
Silastic implants are popular for cosmetic cheek augmentation. We describe the computed tomographic (CT) and magnetic resonance imaging (MRI) findings in 5 cases (4 patients) with penetration of the medial aspect of Silastic cheek implants through the anterior maxillary sinus
Cong Hu et al.
Journal of chromatography. A, 1310, 21-30 (2013-09-03)
In this work, three kinds of metal-organic frameworks (MOFs), MOF-5, MOF-199 and IRMOF-3, were introduced in stir bar sorptive extraction (SBSE) and novel polydimethylsiloxane (PDMS)/MOFs (including PDMS/MOF-5, PDMS/MOF-199 and PDMS/IRMOF-3) coated stir bars were prepared by sol-gel technique. These PDMS/MOFs
Hamid SadAbadi et al.
Journal of nanoscience and nanotechnology, 13(10), 6880-6887 (2013-11-20)
In this paper a novel in-situ microwave-induced synthesis of the gold-polydimethylsiloxane nanocomposite is presented. Microwave-induced synthesis has the advantages of a very short reaction time, small particle size and narrow size distribution of the particles. The ethanol solution of gold
Amir Sanati Nezhad et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(20), 8093-8098 (2013-05-01)
Tip-growing cells have the unique property of invading living tissues and abiotic growth matrices. To do so, they exert significant penetrative forces. In plant and fungal cells, these forces are generated by the hydrostatic turgor pressure. Using the TipChip, a
Zhiyong Li et al.
Optics express, 21(1), 1281-1286 (2013-02-08)
A gold nanorod-facilitated optical heating method for droplets in microfluidic chips is reported. Individual and stream nanoliter level droplets containing gold nanorods are heated by a low power 808-nm-wavelength laser. Owing to the high photothermal conversion efficiency of gold nanorods
Christian Scholz et al.
Physical review letters, 109(26), 264504-264504 (2013-02-02)
We study the permeability of quasi-two-dimensional porous structures of randomly placed overlapping monodisperse circular and elliptical grains. Measurements in microfluidic devices and lattice Boltzmann simulations demonstrate that the permeability is determined by the Euler characteristic of the conducting phase. We
Katherine Moore et al.
The Journal of urology, 192(6), 1794-1799 (2014-06-15)
Endoscopic injection of a bulking agent is becoming a first-line treatment for low grade vesicoureteral reflux. We prospectively compared the efficacy of 2 such products commercially available in Canada. A total of 275 patients with documented grade I to V
Masahiro Imahashi et al.
Journal of colloid and interface science, 406, 186-195 (2013-06-27)
Sensors that recognize molecules are acquired for the comprehensive detection of great many kinds of gases. Adsorbents with high molecular recognition and condensation ability were developed for selective gas sensing with a molecular imprinting technique. Developed adsorbents have multilayer structures
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