Materials Literature
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We have exploited a method for the lateral growth of multiple ZnO nanorods between electrodes in solution without the use of a metal catalyst to fabricate high performance field-effect transistors (FETs). This method enables us to directly align overlapped or overlap-free nanowires between electrodes by eliminating th…
A single-step LbL procedure to functionalize CTAB-capped GNRs via electrostatic self-assembly is reported. This approach allows for consistent biomolecule/GNR coupling using standard carboxyl-amine conjugation chemistry. The focus is on cancer-targeting biomolecule/GNR conjugates and selective photothermal destruction…
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTPoly(3,4-propylenedioxythiophene)s as a Single Platform for Full Color RealizationTanmoy Dey†, Michael A. Invernale†, Yujie Ding†, Zeki Buyukmumcu‡, and Gregory A. Sotzing*†View Author Information† The Polymer Program, Institute of…
Knowledge about the surface functionalization of nanodiamonds is of great importance for nanomedical and nanobiological applications. In this paper, we explore the relative stability of the nanodiamond passivated by amidogen (NH 2 ), imidogen (NH), and nitrogen (N) in N 2 + H 2 and ammonia environments, using density…
Inhibition of axonal outgrowth accompanied by neuroma formation appears in microsurgical nerve repair as reaction to common microsuture materials like silk, nylon, or polyglycolic acid. In contrast, recent findings revealed advantages of spider silk fibers in guiding Schwann cells in nerve regeneration. Here, we asked…
Ge${}_{2}$Sb${}_{2}$Te${}_{5}$, an extensively studied narrow-band-gap semiconductor for phase-change memories, always displays $p$-type conductivity. However, the defect physics and origin of the $p$-type conductivity are not yet clear. We have studied various types of defects in layered $n$GeTe\ifmmode\cdot\else\tex…
Controlling the decomposition pathways of methanol is of significant importance to applications such as methanol reforming and direct methanol fuel cells. An understanding of the reaction of methanol on tungsten carbide (WC) and metal-modified WC surfaces should provide useful input for the utilization of these materi…
Bio-based polymers and biocomposites are a relatively new and growing market in light of recent societal concerns including dwindling petroluem reserves, environmental and endof-live disposal issues (Mohanty et al., 2005; Vijay, 2009). Polymers derived from plants, especially those from non-food resources, are gaining…
Phase-change memory (PCM) has been researched extensively as a promising alternative to flash memory. Important studies have focused on its scalability, switching speed, endurance, and new materials. Still, reliability issues and inconsistent switching in PCM devices motivate the need to further study its fundamental…
Supramolecular liquid-crystalline polymer microparticles were fabricated by combining a simple phase reversion method with hydrogen-bonding formation between an azopyridyl polymer and a series of dicarboxylic acid compounds. Their surface morphologies and phase behaviors were studied by changing the molecular length o…
INTRODUCTION: X-ray crystallography provides the majority of our structural biological knowledge at a molecular level and, in terms of pharmaceutical design, is a valuable tool to accelerate discovery. It is the premier technique in the field, but its usefulness is significantly limited by the need to grow well-diffra…
Superbroadband emission from 1.0 to 1.7 μm wavelength was observed in thulium-bismuth (Tm-Bi) codoped sodium-germanium-gallate (NGG) glasses under 793 nm excitation. Efficient energy transfer process from Bi to Tm ions, with value as high as 67.7%, was achieved which is beneficial in achieving flat broadband lineshape…
Structure, magnetization, and dielectric permittivity of (1-x)BiFeO3-xBaTiO3 (BFO-BT) ceramics have been studied as a function of BT content (x = 0.0, 0.1, 0.2, and 0.3). In situ synchrotron x-ray diffraction result of BFO reveals a rhombohedral (R)–orthorhombic (O)–cubic (C) phase transition near 820 and 850 °C upon…
Quantum dots (QDs) are a novel class of inorganic fluorophores which are gaining widespread recognition as a result of their exceptional photophysical properties and their applications as a biomarker and in molecular biomedical imaging. The aim of this study was to evaluate the in vivo genotoxicity in mice exposed to…
Nanocomposite magnets (NCMs) consisting of hard and soft magnetic phases are expected to be instrumental in overcoming the current theoretical limit of magnet performance. In this study, structural analyses were performed on L1(0)-FePd/α-Fe NCMs with various hard/soft volume fractions, which were formed by annealing P…
We study optimal interfacial structures in multiferroic materials with a biquadratic coupling between two order parameters. We discover a new duality relation between the strong coupling and the weak coupling regime for the case of isotropic gradient terms. We analyze the phase diagram depending on the coupling consta…
The structural evolution of a body-centered cubic (bcc) superlattice of 6.6 nm diameter organic ligand-coated PbSe nanocrystals was studied in situ by small angle X-ray scattering (SAXS) as it was heated in air from room temperature to 350°C. As it was heated above room temperature, the superlattice contracted slightl…
Three novel transition-metal substituted polyoxotungstates based on Keggin fragments, Cs 3 K 3 [Co(H 2 O) 6 ] 2 [Co(H 2 O) 3 (α-GeW 11 CoO 38 ) 3 ]·30H 2 O ( 1 ), K 18 {[Mn(H 2 O) 3 ] 2 [Mn(H 2 O) 2 ][(B-β-SiW 9 O 33 (OH))Mn 3 (H 2 O)(B-β-SiW 8 O 30 (OH))] 2 }·16H 2 O ( 2 ), and K 8 [Cd(H 2 O) 3 ] 2 [Cd 4 (H 2 O) 2 (B…
High temperature luminescence-based sensing is demonstrated by embedding colloidal CdSe(ZnS) quantum dots into a high temperature SiO(2) dielectric matrix. The nanocomposite was fabricated by a solution process method. As-prepared CdSe(ZnS) quantum dots in the nanocomposite sensor show an absorption band at a waveleng…
Ion beams can be used to permanently bend and re-align nanowires after growth. We have irradiated ZnO nanowires with energetic ions, achieving bending and alignment in different directions. Not only the bending of single nanowires is studied in detail, but also the simultaneous alignment of large ensembles of ZnO nano…