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.
Carbon nanotubes, few-layer graphene, and etch tracks exposing insulating SiO2 regions are integrated into nanoscale systems with precise crystallographic orientations. These integrated systems consist of nanotubes grown across nanogap etch tracks and nanoribbons formed within the few-layer graphene films. This work is relevant to the integration of semiconducting, conducting, and insulating nanomaterials together into precise intricate systems.
Reduced graphene oxide ultrathin films are fabricated by a reproducible exfoliation method at the liquid/air interface, and they show high transparency, tunable sheet resistance, uniform electric conductivity, and structural homogeneity over a large area. A flexible relative humidity sensing matrix is demonstrated and it is shown to be excellent for close proximity sensing without touching it. This method opens up a novel avenue for future human-machine interaction applications.
We demonstrate that, through strain-mediated magnetoelectric coupling, the magnetocaloric effect of a ferromagnetic shape memory alloy can be controlled by an electric field. Large hysteresis and limited operating temperature region are effectively overcome by applying electric field on a laminate consisting piezoelectric and alloy. Accordingly, a model for active magnetic refrigerator with high efficiency is proposed in principle.
Free-standing and flexible sandwich-like MXene/carbon nanotube (CNT) paper, composed of alternating MXene and CNT layers, is fabricated using a simple filtration method. These sandwich-like papers exhibit high volumetric capacitances, good rate performances, and excellent cycling stability when employed as electrodes in supercapacitors.
Encapsulation of Pt nanoparticles (NPs) in a zirconia nanocage by area-selective atomic layer deposition (ALD) can significantly enhance both the Pt stability and activity. Such encapsulated Pt NPs show 10 times more stability than commercial Pt/C catalysts and an oxygen reduction reaction (ORR) activity 6.4 times greater than that of Pt/C.
Freestanding ultrathin rGO membranes, with thicknesses down to 17 nm, are fabricated via a facile approach using hydroiodic acid vapor and water-assisted delamination. These unique membranes provide the potential for addressing the key challenge that limits the performance of current forward osmosis membranes.
World-record-performing bulk-heterojunction (BHJ) small molecule solar cells are realized by careful optimization of their solid-state morphology. These BHJ films are transformed from an intimate mixture of the donor and acceptor phases to films with well-defined donor crystallites. In addition to correlating with a high photovoltaic response, the donor crystallites also appear to be linked with the emergence of donor singlet electroluminescence at low applied biases, where only charge-transfer-state emissi...
A record-breaking high electron mobility (up to 7.0 cm(2) V(-1) s(-1) ) is demonstrated with a diketopyrrolopyrrole (DPP)-based semiconductor (PDPP-CNTVT), of which a vinylene unit is simply incorporated with only one nitrile group, as described by Y.-H. Kim, Y.-Y. Noh, as described by S.-K. Kwon, and co-workers on page 7300. Both the strong electron-withdrawing property of the nitrile group and its low steric-hindrance effect in the conjugation backbone can help the hole-dominant polymer (PDPP-TVT) to be c...
Combining a yellow-emitting organic material with a blue-emitting inorganic light-emitting device (LED) provides a hybrid white-light LED. This approach, demonstrated by R. W. Martin, P. J. Skabara, and co-workers on page 7290, couples very efficient blue emission with the flexibility, fast modulation speed, and cost effectiveness of the organic material. For the latter, BODIPY is used as the emitter and linked to a conjugated unit designed to efficiently absorb a suitable fraction of the blue light.
On page 7295, F. Caruso and co-workers report a mesoporous silica templating method for preparing super-soft PEG particles. The elasticity of the particles can be tuned to mimic the deformability behaviour of human red blood cells in a microfluidic blood-capillary model. These particles provide a new platform for investigating bio-nano interactions.
At the convergence of organic electronics and biology, organic bioelectronics attracts great scientific interest. The potential applications of organic semiconductors to reversibly transmit biological signals or stimulate biological tissues inspires many research groups to explore the use of organic electronics in biological systems. Considering the surfaces of movable living tissues being arbitrarily curved at physiological environments, the flexibility of organic bioelectronic devices is of paramount impo...
As a novel class of dynamic and non-covalent polymers, supramolecular polymers not only display specific structural and physicochemical properties, but also have the ability to undergo reversible changes of structure, shape, and function in response to diverse external stimuli, making them promising candidates for widespread applications ranging from academic research to industrial fields. By an elegant combination of dynamic/reversible structures with exceptional functions, functional supramolecular polyme...
3D printing of reduced graphene oxide (rGO) nanowires is realized at room temperature by local growth of GO at the meniscus formed at a micropipette tip followed by reduction of GO by thermal or chemical treatment. 3D rGO nanowires with diverse and complicated forms are successfully printed, demonstrating their ability to grow in any direction and at the selected sites.
Materials and device designs are presented for electronic systems that undergo functional transformation by a controlled time sequence in the dissolution of active materials and/or encapsulation layers. Demonstration examples include various biocompatible, multifunctional systems with autonomous behavior defined by materials selection and layout.
Wiley has updated its publishing ethics guidelines, first published in 2006. These new guidelines provide guidance, resources, and practical advice on ethical concerns that arise in academic publishing for editors, authors, and researchers, among other audiences. New guidance is included about whistle blowers, animal research, clinical research, and clinical trial registration, addressing cultural differences, human rights, and confidentiality. The guidelines are uniquely interdisciplinary, and were reviewe...
A new methodology for manipulating transient-amorphous states of phase-change memory (PCM) materials is reported as a viable means to boost the speed, yet reducing the power consumption, of PC memories, and is applicable to new forms of PCM-based neuromorphic devices. Controlling multiple-pulse interactions with PC materials may provide an opportunity towards developing a new paradigm for ultra-fast neuromorphic computing.
High energy density and long term stability of Li-S batteries are achieved by employing a 3D sponge-like carbon nanotube cathode and a liquid-type polysulfide catholyte. Carbon nanotubes provide not only excellent electron pathways and polysulfide reservoirs but can also be used as a standalone cathode without current collectors, which greatly alleviates problems arising from insulating sulfur and polysulfide shuttles as well as remarkably increases the energy density.
A flexible uniform responsive microstructure (μFUR) array is reported by E. N. Wang and co-workers, on page 6442. The μFUR has continuous and extreme tilt angles via the application of a magnetic field and is used to dynamically manipulate liquid spreading directionality, control fluid drag, and tune optical transmittance over a large range. Cover art by Carly L. Sanker.
The atomic layer deposition technique is successfully applied to synthesize lithium iron phosphate using rationally designed surface reactions, as demonstrated for the first time by X. Sun and co-workers on page 6472. The lithium iron phosphate exhibits high power density, excellent rate capability, and ultra-long lifetime, showing great potential in vehicular lithium batteries and 3D all-solid-state microbatteries.
M. Ullah, E. B. Namdas, and co-workers present on page 6410 the first all-solution-processed hybrid light-emitting transistors, and demonstrate the effectiveness of their operation with three organic emissive materials. This approach involves the fabrication of a bilayer device structure using a solution of organic emissive material, and a sol-gel of zinc tin oxide. The use of nonplanar contacts is also demonstrated in this study as playing a crucial role in the enhanced optoelectronics characteristics.
Twelve-pointed graphene grains are controllably fabricated on a liquid Cu surface by ambient pressure chemical vapor deposition, as described by G. Yu and co-workers on page 6423. These novel-shaped grains are characterized as single-layer and single-crystalline. The distinct nature of the alternating edge types (zigzag and armchair edges in sequence) in such a grain may result in their promising application in spintronics and other areas.
C. S. Han and co-workers report on page 6394 the clean, fast, and inexpensive direct transfer of large-area monolayer CVD graphene from Cu foil to various substrates such as PET, PDMS, and glass using a mechano-electro-thermal (MET) process. This process leads to ultraconformal contact between the graphene and the target substrate, which increases the higher adhesion energy of the graphene to the substrate over Cu foil. This transferred graphene presents both excellent quality (with no residues or defects) ...