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PubMed Journal Database | Advanced materials (Deerfield Beach, Fla.) RSS

11:26 EDT 17th April 2014 | BioPortfolio

The US National Library of Medicine and National Institutes of Health manage PubMed.gov which comprises of more than 21 million records, papers, reports for biomedical literature, including MEDLINE, life science and medical journals, articles, reviews, reports and  books.  BioPortfolio aims to publish relevant information on published papers, clinical trials and news associated with users selected topics.

For example view all recent relevant publications on Epigenetics and associated publications and clincial trials.

Showing PubMed Articles 1–25 of 2,800+ from Advanced materials (Deerfield Beach, Fla.)

986990

Self-Recovering Tough Gel Electrolyte with Adjustable Supercapacitor Performance.

A self-recovering gel with integrated functions synthesized via self-initiated UV poly-merization is described, which offers an effective platform for a gel electrolyte to attain adjustable supercapacitor performances for energy storage devices.

986931

Cationic Conjugated Polymers for Discrimination of Microbial Pathogens.

A new cationic poly(phenylene vinylene) derivative (PPV-NMe3 (+) ) is synthesized, and it exhibits differential binding ability to microbial cell walls with different components. By varying the ion strengths of the buffer solution, single PPV-NMe3 (+) molecules can discriminate fungi, Gram-positive bacteria, and Gram-negative bacteria in a rapid and simple manner. Thus cationic conjugated polymers exhibit a high potential as a diagnostic material for the detection and discrimination of pathogens.

986882

Silk Protein Lithography as a Route to Fabricate Sericin Microarchitectures.

Photolithographic fabrication via a "silk sericin photoresist" is used to form precise protein microstructures directly and rapidly on a variety of substrates. High resolution and fidelity architectures in two and three dimensions with line widths down to 1 micron are formed. Photo-crosslinked protein structures provide structural iridescence and guide cell adhesion with precise spatial control.

986863

Fabrication of a Multifunctional Nano-in-micro Drug Delivery Platform by Microfluidic Templated Encapsulation of Porous Silicon in Polymer Matrix.

A multifunctional nano-in-micro drug delivery platform is developed by conjugating the porous silicon nanoparticles with mucoadhesive polymers and subsequent encapsulation into a pH-responsive polymer using microfluidics. The multistage platform shows monodisperse size distribution, pH-responsive payload release, and the released nanoparticles are mucoadhesive. Moreover, this platform is capable of simultaneously loading and releasing multidrugs with distinct properties.

985910

Mechanically Adaptive Organic Transistors for Implantable Electronics.

A unique form of adaptive electronics is demonstrated, which change their mechanical properties from rigid and planar to soft and compliant, in order to enable soft and conformal wrapping around 3D objects, including biological tissue. These devices feature excellent mechanical robustness and maintain initial electrical properties even after changing shape and stiffness.

985895

Carbon Nanotube and Graphene Hybrid Thin Film for Transparent Electrodes and Field Effect Transistors.

Single-walled carbon nanotubes and graphene hybrid films with complementary properties are combined for use in high-performance transparent electrodes and field effect transistors (FETs). Based on the transfer characteristics for the hybrid film-based FETs, an improved Ion /Ioff and on-state current are achieved compared with pristine graphene. Notably, the hybrid film has a sheet resistance of 300 Ω/sq with 96.4% transparency.

985142

Phononic crystal with adaptive connectivity.

The band structure of a phononic crystal can be controlled by tuning the mechanical stiffness of the links connecting its constituting elements. The first implementation of a phononic crystal with adaptive connectivity is obtained by using piezoelectric resonators as variable stiffness elements, and its wave-propagation properties are experimentally characterized.

985141

Control of functional responses via reversible oxygen loss in La₁-xSrxFeO₃-δ films.

La0.3 Sr0.7 FeO3-δ films undergo dramatic changes in electronic and optical properties due to reversible oxygen loss induced by low-temperature heating. This mechanism to control the functional properties may serve as a platform for new devices or sensors in which external stimuli are used to dynamically control the composition of complex oxide heterostructures.

985140

Thin film metal nanocluster light-emitting devices.

Light-emitting devices that utilize thin films of metal nanoclusters as quantum emitters are presented. Implementing Ag as well as Au nanoclusters, the versatility of the approach is demonstrated, and it is shown that the electroluminescence measured from these devices is tunable by the choice of nanocluster. Ultimately, it is demonstrated that metal nanoclusters represent an additional option for future light-generating applications.

985139

High contrast fluorescence patterning in cyanostilbene-based crystalline thin films: crystallization-induced mass flow via a photo-triggered phase transition.

A facile and innovative method for the fabrication of highly fluorescent micro-patterns is presented, which operates on the principle of phototriggered phase transition and physical mass migration in the crystalline film of a cyanostilbene-type aggregation-induced enhanced emission (AIEE) molecule ((Z)-2,3-bis(3,4,5-tris(dodecyloxy)phenyl) acrylonitrile) with liquid-crystalline (LC) mesomorphic behavior.

985050

Liquid-Crystalline Elastomers: High-Resolution 3D Direct Laser Writing for Liquid-Crystalline Elastomer Microstructures (Adv. Mater. 15/2014).

Liquid-crystalline elastomers (LCEs) are great candidates for smart artificial materials. On page 2319, D. S. Wiersma, C. Parmeggiani, and co-workers use direct laser writing to fabricate 3D LCE structures with sub-micrometer resolution and maintaining the designed molecular orientation. This technique opens up the road towards 3D microphotonics in elastomers, and lays the basis for creating 3D, micrometer-size robotic structures, which can be controlled by light.

985049

Microfluidic chips: active digital microfluidic paper chips with inkjet-printed patterned electrodes (adv. Mater. 15/2014).

Active, paper-based, microfluidic chips driven by electrowetting are fabricated and demonstrated for reagent transport and mixing by K. Shin, O.-S. Kwon, and co-workers on page 2335. The key advantage in fabricating the paper-based microfluidic chips is that electrode patterns can be designed and printed on paper quickly, finely, and precisely without complicated wet-lab processes. The cover image showes that the inkjet-printed patterned electrodes can be employed to actuate liquid drops on paper, not only...

985048

Contents: (adv. Mater. 15/2014).

985047

Active digital microfluidic paper chips with inkjet-printed patterned electrodes.

Active, paper-based, microfluidic chips driven by electrowetting are fabricated and demonstrated for reagent transport and mixing. Instead of using the passive capillary force on the pulp to actuate a flow of a liquid, a group of digital drops are transported along programmed trajectories above the electrodes printed on low-cost paper, which should allow point-of-care production and diagnostic activities in the future.

985046

Plasmonic Nanostructures: 3D Nanostar Dimers with a Sub-10-nm Gap for Single-/Few-Molecule Surface-Enhanced Raman Scattering (Adv. Mater. 15/2014).

Giant electromagnetic field enhancement in specifically designed hot-spots plays a key role in chemical sensing via plasmon-assisted Raman spectroscopy. On page 2353, A. Toma and co-workers present novel 3D nanostar dimer structures that enable field confinement in highly localized regions, which are decoupled from the substrate surface by their elevated architecture. These nanostar dimers can be exploited for single/few molecules detection.

985045

Organic electronics: bulk interpenetration network of thermoelectric polymer in insulating supporting matrix (adv. Mater. 15/2014).

On Page 2359, X. Yang, G. Lu, and co-workers introduce a method to improve the thermoelectric properties of polymers, upon constructing an interpenetrating network of a thermoelectric polymer within an insulating polymer matrix. The local one-dimensional charge transport along the conductive network simultaneously leads to lower thermal conductivity and higher electrical conductivity without sacrificing the Seebeck coefficient. This work promotes a conjugated-/insulating-polymer blend towards its applicatio...

985044

Photonic Crystals: Two-Dimensional Programmable Manipulation of Magnetic Nanoparticles on-Chip (Adv. Mater. 15/2014).

P. Vavassori and co-workers demonstrate on page 2384 that field-controlled displacement of magnetic domain walls in ferromagnetic nano-ring structures allows for capture and 2-dimensional remote manipulation of fluidborne magnetic nanoparticles over a chip surface.

985043

Masthead: (adv. Mater. 15/2014).

984941

Continuous Self-Healing Life Cycle in Vascularized Structural Composites.

By incorporating 3D microvascular networks containing a two-part reactive chemistry within a fiber-reinforced composite, continuous cycles of self-healing after interlaminar delamination are achieved. An interpenetrating vasculature shows improved in situ fluid mixing over segregated microchannels, resulting in full recovery (>100%) of mode-I fracture resistance.

984924

A Novel Poly(amido amine)-Dendrimer-Based Hydrogel as a Mimic for the Extracellular Matrix.

The extracellular matrix is mimicked by a novel dendrimer-based hydrogel, which exhibits a highly interconnected porous network, enhanced mechanical stiffness, and a low swelling ratio. The hydrogel system supports the proliferation and differentiation of mesenchymal stem cells without any cytotoxic effects. This dendrimer-based hydrogel may serve as a model for developing new advanced materials with applications in tissue engineering.

984846

A Bubble-Mediated Intelligent Microscale Electrochemical Device for Single-Step Quantitative Bioassays.

An intelligent microscale electrochemical device (iMED) for one-step, quantitative and multiplexed electrochemical detection of biomarkers for infectious diseases and tumors is developed. A "plug-in-cartridge" technology is introduced and adapted for use in screen-printed electrodes (SPEs) in electrochemical devices. Using this iMED, biomarkers for two types of tumors and one infectious disease are detected at sub-ng/mL levels in less than 30 min.

984818

Lessons Learned: From Dye-Sensitized Solar Cells to All-Solid-State Hybrid Devices.

The field of solution-processed photovoltaic cells is currently in its second spring. The dye-sensitized solar cell is a widely studied and longstanding candidate for future energy generation. Recently, inorganic absorber-based devices have reached new record efficiencies, with the benefits of all-solid-state devices. In this rapidly changing environment, this review sheds light on recent developments in all-solid-state solar cells in terms of electrode architecture, alternative sensitizers, and hole-transp...

984792

Electronic Properties of Isosymmetric Phase Boundaries in Highly Strained Ca-Doped BiFeO3.

Anisotropic electronic conductivity is reported for isosymmetric phase boundaries in highly strained bismuth ferrite, which are the (fully epitaxial) connecting regions between two different structural variants of the same material. Strong correlations between nanoscale phase transition and local electronic conductivity are found. A high degree of control over their electronic properties can be attained through non-local electrical switching.

984779

Controllable Synthesis of Hollow Si Anode for Long-Cycle-Life Lithium-Ion Batteries.

A versatile and surfactant-free method is developed to synthesize hollow Si materials using carbonates as templates without the use of hazardous hydrofluoric acid. The morphology of Si is controllable from hollow cubes, spheres, tubes, to flowers and other shapes. Such hollow Si materials as anodes of lithium-ion batteries show excellent cyclic performance, which is promising for practical applications.

984757

Sn4+x P3 @ Amorphous Sn-P Composites as Anodes for Sodium-Ion Batteries with Low Cost, High Capacity, Long Life, and Superior Rate Capability.

Sn4+x P3 @ amorphous Sn-P composites are a promising cheap anode material for sodium-ion batteries with high capa-city (502 mA h g(-1) at a current density of 100 mA g(-1) ), long cycling stability (92.6% capacity retention up to 100 cycles), and high rate capability (165 mA h g(-1) at the 10C rate).


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