Materials Literature
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Polymer–peptide conjugates (also known as biohybrids) are attracting considerable attention as injectable materials owing to the self-assembling behavior of the peptide and the ability to control the material properties using the polymer component. To this end, a simple method for preparing poly(ethylene oxide)-oligop…
In the present work, the in situ incorporation of polystyrene in styrene suspension polymerization reactions is studied, aiming at recycling discarded and off-spec polymer materials. A number of issues related to the effects of the incorporated material on the reaction kinetics and on some polymer properties are studi…
Shape memory alloy (SMA) wire meshes are being investigated for their potential effectiveness as active layers in self-folding origami laminates. The currently studied meshes consist of two orthogonal sets of equally spaced parallel SMA wires. The modeling of self-folding laminates with SMA wire meshes becomes computa…
In this paper, a 2D model with detailed heterogeneous chemical mechanism has been employed to investigate the heat transfer phenomenon of premixed CH4/air catalytic combustion in a Pt coated microtube. Especially, the thermal processes such as coupled heat transfer between the internal surface of the microtube and the…
In this study, we produce InGaN/GaN microcolumn LED (MC-LED) arrays having nonpolar metal sidewall contacts using a top-down method, where the metal contacts only with the sidewall of the columnar LEDs with an open top for transparency. The trapezoidal profile of the as-etched columns was altered to a rectangular prof…
This work is devoted to the systematic study of the optical and magneto-optical properties of sputter deposited CuFe₂O₄ thin films in the photon energy region between 2 and 5 eV using spectroscopic ellipsometry and magneto-optical Kerr spectroscopy. The spectral dependence of both the diagonal and off-diagonal element…
At anticipated high electron temperatures in ITER, the effects of electron thermal motion on phase measurements made by the toroidal interferometer/polarimeter (TIP) and poloidal polarimeter (PoPola) diagnostics will be significant and must be precisely treated or the measurement accuracy will fail to meet the specifi…
InN was grown over nanoporous GaN by metal-organic chemical vapor deposition. Additional free surfaces in the numerous GaN nanopores reduced the surface energy and encouraged extensive nucleation and uniform growth of InN nanoislands. Conversely, coarse and poorly distributed InN islands grew on planar GaN surfaces. N…
A magnetic field-assisted finishing (MAF) process has been developed to reduce the sidewall surface roughness of the 5–20 μm wide curvilinear pores of microelectromechanical systems micropore X-ray optics to <1 nm Rq. Although the feasibility of this process has been demonstrated on these optics, a clear understanding…
Dissipative particle dynamics (DPD) simulation was used to study the self-assembly of laterally nanostructured vesicles in aqueous solution from μ-[poly(ethylethylene)]-[poly(ethylene oxide)][poly(perfluoropropylene oxide)] (μ-EOF) star terpolymers. The simulated results show that the laterally nanostructured vesicle…
The interfacial chemistry of atomic layer deposition (ALD) of Al2O3 on chemically treated GaP (100) has been studied using in situ X-ray photoelectron spectroscopy. A “self-cleaning” effect for Ga-oxide upon exposure to trimethylaluminum is seen to be efficient on the native oxide and chemically treated surfaces. The…
We report an all-optical logic binary encoder based on two asymmetric plasmonic nanogrooves etched in a gold film coated a polyvinyl alcohol layer. The physical mechanism originates from the unique capability of plasmonic nanogrooves in modulating the propagation properties of surface plasmon polaritons. The incident…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Takeshi Seki, Kyoko Hotta, Hiroshi Imamura, Yukio Nozaki, Koki Takanashi; Characteristic field an…
The electron momentum density (EMD) in liquid silicon (Si) has been measured by synchrotron-based Compton scattering. The observed variation in the valence EMD upon melting, reflecting a semiconductor-metal transition of Si, is well explained by the collapse of the Jones zone of crystalline Si. However, the shape of t…
As the number of cores and threads in throughput accelerators such as Graphics Processing Units (GPU) increases, so does the importance of on-chip interconnection network design. This article explores throughput-effective Network-on-Chips (NoC) for future compute accelerators that employ Bulk-Synchronous Parallel (BSP…
Photoreceptor cell-specific receptor (PNR/NR2E3) is an orphan nuclear receptor that plays a critical role in retinal development and photoreceptor maintenance. The disease-causing mutations in PNR have a pleiotropic effect resulting in varying retinal diseases. Recently, PNR has been implicated in control of cellular…
A density-functional-theory method for analyzing effects of strong electron correlation is presented, based on a single Kohn-Sham determinant. It yields the population of effectively unpaired (odd) electrons and depicts the strength of nondynamic correlation, both locally and globally. It provides also a quantitative…
Abstract In dye‐sensitized solar cells (DSSCs), the charge recombination at the TiO2/dye/electrolyte interface greatly influences the photoelectron conversion efficiency. Hybrid semiconductor materials with matched band potentials are designed to reduce the charge recombination. In this study, SrTiO3/TiO2 hybridstruct…
The comprehensive control of morphology and structure is of extreme importance in semiconducting polymers when used as active layers in optoelectronic devices. In the work reported here, a systematic investigation of the structural and dynamical properties of poly(9,9-di- n -octyl-fluorene- alt -benzothiadiazole), kno…
Nanoparticles (NPs) fabricated from the biodegradable copolymer poly(lactic- co -glycolic acid) (PLGA) were investigated as a drug delivery system to enhance the photodynamic efficacy of 5-aminolevulinic acid (5-ALA) in mice bearing Ehrlich ascites carcinoma. The PLGA-encapsulated 5-ALA NPs were prepared using binary…