Materials Literature
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Nanotechnology has the potential to revolutionize the management and treatment of cardiovascular disease. Controlled drug delivery and nanoparticle-based molecular imaging agents have advanced cardiovascular disease therapy and diagnosis. However, the delivery vehicles (dendrimers, nanocrystals, nanotubes, nanoparticl…
Oxygen vacancies play a role in various proposed degradation mechanisms of Pb(Zr x Ti 1− x )O 3 (PZT)‐based applications. Hence, 18 O tracer diffusion experiments investigated by time‐of‐flight‐secondary ion mass spectrometry were used in order to evaluate oxygen diffusion in donor‐doped polycrystalline PZT. The PZT s…
The effects of surface roughness on secondary electron emission (SEE) are investigated for copper. The surface of the copper samples was modified using a high-power neodymium-doped yttrium aluminum garnet laser, where the degree of surface modification depended on the duration and intensity of the laser exposure. Four…
Chitosan (CTS) is biocompatible, biodegradable, and can be formed into 3D porous structures for bone tissue engineering applications. Although studies have reported on the effects of molecular weight (MW) on CTS physicochemical properties, studies evaluating CTS biological property relationships often do not account f…
A comprehensive study using liquid chromatography electrospray ionization multistage mass spectrometry (LC-ESI MS(n)) was performed to get detailed structural information on poly(butylene adipate-co-butylene terephthalate) co-polyester and its product of partial degradation. LC-MS and LC-MS(n) identified the existence…
The novel thiol bridging "staple motif RS-Au-SR" discovered at the Au-thiolate interface has tremendously advanced the structural understanding of monolayer protected Au clusters (AuMPCs). In this paper, multidentate dithiol ligands are introduced into the monolayer of the Au clusters. The impacts of dithiols on the A…
Here we report on controlling the effective hybridization and charge transfer of rare-earth elements inside a carbon nanotube (CNT) nanoreactor. The tubular space inside CNTs can encapsulate one-dimensional (1D) crystals such as ErCl${}_{3}$, which we have used as a starting material. Applying a thermochemical reactio…
CdSe semiconductor nanocrystal quantum dots are assembled into nanowire-like arrays employing microtubule fibers as nanoscale molecular "scaffolds." Spectrally and time-resolved energy-transfer analysis is used to assess the assembly of the nanoparticles into the hybrid inorganic biomolecular structure. Specifically,…
Understanding the mechanisms of clustering in colloids, nanoparticles, and proteins is of significant interest in material science and both chemical and pharmaceutical industries. Recently, using an integral equation theory formalism, Bomont et al. [J. Chem. Phys. 132, 184508 (2010)] studied theoretically the temperat…
Carbon nanotubes (CNTs) constitute a novel class of nanomaterials with remarkable applications in diverse domains. However, the main intrincsic problem of CNTs is their insolubility or very poor solubility in most of the common solvents. The basic key question here is: are carbon nanotubes dissolved or dispersed in li…
Thermal-driven cis-to-trans supramolecular isomerization without losing crystallinity was first discovered in a two-dimensional coordination polymer system of [FeII(2,4-bpt)2]⋅xH2O (2,4-bpt=3-(2-pyridyl)-5-(4-pyridyl)-1,2,4-triazole), confirmed by PXRD, DSC, IR, EA, and Raman spectra. Gloriously, both samples are spin…
In searching appropriate candidates of magnetic semiconductors compatible with mainstream Si technology for future spintronic devices, extensive attention has been focused on Mn-doped Ge magnetic semiconductors. Up to now, lack of reliable methods to obtain high-quality MnGe nanostructures with a desired shape and a g…
We present measurements of the spectra of electrons with energy between 0.6 and 2.25 keV elastically and inelastically scattered from Ar and Ne over large angles (from 3${}^{ˆ}$ to 135${}^{ˆ}$). The intensity of the first loss feature [$\mathit{np}\ensuremath{\rightarrow}(n+1)s$], relative to that of the elastic peak,…
INTRODUCTION: The tolyporphins are metabolites isolated from the cyanobacterium Tolypothrix nodosa, comprising a porphyrin-like macrocycle with C-glycoside, hydroxide or acetate substituents. Previous studies of porphyrins by MALDI/LDI-TOF MS indicate that strong radical cations and anions are usually observed in the…
A closed-form analytic formula for the radial distribution function (RDF) or g(r) of inverse power fluids is proposed. The RDF is expressed as a sum of separate component functions, one monotonic and a series of exponentially damped oscillatory functions. Unlike previous treatments in the literature, this formula does…
We investigate the effects of point and line defects in monolayer graphene within the framework of the Hubbard model, using a self-consistent mean-field theory. These defects are found to induce characteristic patterns into the electronic density of states and cause nonuniform distributions of magnetic moments in the…
Abstract CdSe:In films were prepared by electron beam evaporation technique using CdSe and In2Se3 (purity ∼99.9%) pellets. The crystal structure of the films with and without Indium, measured by X‐ray diffraction (XRD), showed a typical wurtzite structure, higher Indium doping shifts the peak angle to higher side alon…
The phase transformation of guanosine 5-monophosphate (GMP) during drowning-out crystallization in a continuous Couette−Taylor (CT) crystallizer was studied experimentally and numerically. At a steady state, the phase transformation of the amorphous GMP into hydrate crystals was monitored along the axial direction of…
Elf Freunde: Eine Metallkette aus vier zweikernigen gemischtvalenten Ni23+-Einheiten, die durch drei quadratisch-planare Ni2+-Einheiten verbunden sind, wurde hergestellt (im Bild ist das Molekülmodell aus der Lobby des Chemiegebäudes der National Taiwan University gezeigt), und die elektronischen und magnetischen Eige…
We investigate theoretically the statistics of the equilibria of two-dimensional droplets over random topographical substrates. The substrates are appropriately represented as families of certain stationary random functions parametrized by a characteristic amplitude and wavenumber. In the limit of shallow topographies…