In recent years, much effort have been dedicated to achieve thin, lightweight and even flexible energy-storage devices for wearable electronics. Here we demonstrate a novel kind of ultrathin all-solid-state supercapacitor configuration with an extremely simple process using two slightly separated polyaniline-based electrodes well solidified in the H(2)SO(4)-polyvinyl alcohol gel electrolyte. The thickness of the entire device is much comparable to that of a piece of commercial standard A4 print paper. Under its highly flexible (twisting) state, the integrate device shows a high specific capacitance of 350 F/g for the electrode materials, well cycle stability after 1000 cycles and a leakage current of as small as 17.2 μA. Furthermore, due to its polymer-based component structure, it has a specific capacitance of as high as 31.4 F/g for the entire device, which is more than 6 times that of current high-level commercial supercapacitor products. These highly flexible and all-solid-state paperlike polymer supercapacitors may bring new design opportunities of device configuration for energy-storage devices in the future wearable electronic area.

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A superaligned carbon nanotube (CNT) array is a special kind of vertically aligned CNT array with the capability of being converted into continuous fi lms and yarns. The as-produced CNT fi lms are transparent and highly conductive, with aligned CNTs parallel to the direction of drawing. After passing through volatile solutions or being twisted, CNT fi lms can be further condensed into shrunk yarns. These shrunk yarns possess high tensile strengths and Young’s moduli, and are good conductors. Many applications of CNT fi lms and shrunk yarns have been demonstrated, such as TEM grids, loudspeakers, touch screens, etc.

To summarize, modification of PLED ITO anodes with a silyl-functionalized triarylamine hole-transporting SAM leads to two orders of magnitude enhancement in the maximum luminance and quantum efficiency for a single-layer PFO-based blue PLED device. Even compared to a device with PEDOT± PSS as the HTL, the SAM-based device exhibits~3 times higher maximum luminance, as well as comparable quantum and power efficiencies. While good hole-injection capacity is shown to be an important factor in the improved performance, other SAM characteristics, such as ultra-low visible absorption, lower active layer thickness, and high interfacial stability are additional attractions. ExperimentalPFO Synthesis: The polymer was synthesized from 2,7-dibromo-9,9-dioctylfluorene and 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dioctylfluorene using conventional Suzuki coupling methodology [28], and was carefully purified by repetitive precipitation to remove ionic impurities and catalyst residues. The number-and weight-average molecular weights (M n and M w ) of PFO were determined to be 54 700 and 107 000 (polydispersity = 1.95), respectively, by gel permeation chromatography (GPC) using tetrahydrofuran as solvent and polystyrene standards. The PFO microstructure was additionally verified by NMR spectroscopy and elemental analysis.Self-Assembly of TPD-Si 2 : TPD-Si 2 was synthesized according to a procedure reported previously [25]. ITO-coated glass with a sheet resistance of 20 X/& was used as the substrate for the self-assembly of TPD-Si 2 and PLED fabrication. The substrates were first washed with organic solvents in an ultrasonic bath, then cleaned by oxygen plasma etching. TPD-Si 2 was self-assembled from a hot (90 C), dry toluene solution onto the aforementioned cleaned ITO substrates by procedures similar to those described before [20] and then dried in a vacuum oven before use.PLED Device Fabrication: All the substrates (SAM-modified ITO, bare ITO, ITO/PEDOT-PSS) were dried in a vacuum oven at 110 C overnight before PFO was spincast on top of them from a xylene solution to give an emissive layer of a thickness of~80 nm as measured by step profilometry. The resultant films were dried in a vacuum oven overnight. Inside an inert atmosphere glove box, Ca was thermally evaporated onto the PFO film in a vacuum < 10 ±6 torr, using a shadow mask to define the electrode area as 10 mm 2 , and followed by Al deposition as a protective layer. PLED devices were characterized inside a sealed aluminum sample container using instrumentation described elsewhere [19,20]. Electroluminescence spectra were recorded within 0.5 h after device fabrication. High-Density, Ordered Ultraviolet Light-Emitting ZnO Nanowire Arrays** By Changhong Liu, Juan Antonio Zapien, Yuan Yao, Xiangmin Meng, Chun Sing Lee, Shoushan Fan, Yeshayahu Lifshitz, and Shuit Tong Lee* The superior optical properties of zinc oxide (ZnO) make it an excellent material for exciting applications, including optical waveguides, [1,2] transparent conducting coatings, [3] ac...

Glioma is one of the most prevalent types of primary intracranial carcinoma with varying malignancy grades I–IV and histological subtypes, including astrocytomas, glioblastoma multiform (GBM), oligodendrogliomas and mixed tumors. Glioma is characterized by rapid cell proliferation and angiogenesis, and the WHO grade IV glioblastoma, which is highly malignant with poor prognosis because GBM stem-like cells (GSCs) are resistant to conventional therapy and easily recrudescent, accounts for the majority of gliomas. Consequently, investigations exploring the accurate molecular mechanisms and reliable therapeutic targets for gliomas have drawn extensive attention.Based on the increasing amount of functional lncRNAs aberrantly expressed in glioma tissues and cell lines, lncRNAs might be critical for glioma initiation, progression and other malignant phenotypes. This review summarizes the latest insights into the lncRNA field and their functional roles in glioma, therefore evaluating the potential clinical applications of lncRNAs as prospective novel biomarkers and therapeutic targets.

Paper-like carbon nanotube (CNT) materials have many important applications such as in catalysts, in filtration, actuators, capacitor or battery electrodes, and so on. Up to now, the most popular way of preparing buckypapers has involved the procedures of dispersion and filtration of a suspension of CNTs. In this work, we present a simple and effective macroscopic manipulation of aligned CNT arrays called 'domino pushing' in the preparation of the aligned thick buckypapers with large areas. This simple method can efficiently ensure that most of the CNTs are well aligned tightly in the buckypaper. The initial measurements indicate that these buckypapers have better performance on thermal and electrical conductance. These buckypapers with controllable structure also have many potential applications, including supercapacitor electrodes.

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