Materials Literature
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Absorbent layers of semiconductor quantum dots (QDs) are now used as material platforms for low-cost, high-performance solar cells. The semiconductor metal oxide nanoparticles as an acceptor layer have become an integral part of the next generation solar cell. To achieve sufficient electron transfer and subsequently h…
Martensitic stainless steels are commonly used in cutlery fabrication requiring high hardness and sufficient corrosion resistance. The heat treatment process affects the mechanical and electrochemical behavior of martensitic stainless steels due to the precipitation of chromium carbides. Depending on the heat treatmen…
In this study, hyaluronic acid (HA)/poly(lactic-co-glycolic acid, PLGA) core/shell fiber meshes loaded with epigallocatechin-3-O-gallate (EGCG) (HA/PLGA-E) for application to tissue engineering scaffolds for skin regeneration were prepared via coaxial electrospinning. Physicochemical properties of HA/PLGA-E core/shell…
A single nanowire resistive nano-heater (RNH) is fabricated, and it is demonstrated that the RNH can induce highly localized temperature fields, which can trigger highly localized thermo-chemical reactions to grow hierarchical nanowires directly at the desired specific spot such as ZnO nanowire branch growth on a sing…
Graphene nanoplatelets (xGnP) were investigated as a novel nanoreinforcement filler in poly (lactic acid)(PLA)/poly (ethylene glycol)(PEG) blends by melt blending method. The prepared nanocomposites exhibited a significant improvement in tensile properties at a low xGnP loading. The tensile properties demonstrated the…
Utilization of photons of sub‐bandgap energy, mostly near‐infrared (NIR) photons, is highly desirable for photovoltaic devices. We show that (NaYF 4 :Yb‐Tm)/(Cu 2 O) composite films formed by electrodeposition exhibit robust photoactive current generation under NIR light excitation. The composite films consist of hom…
We report on the preparation of mono- and bi-layer molybdenum disulfide (MoS2) from a bulk crystal by facile wet chemical etching. We show that concentrated nitric acid (HNO3) effectively etches thin MoS2 crystals from their edges via formation of MoO3. Interestingly, etching of thin crystals on a substrate leaves beh…
We report on the design and fabrication of a highly angular dependent high contrast grating (HCG) mirror. The modeling and experiment on amorphous-Si/SiO 2 HCG clearly show the large angular dependence of reflectivity, which enables single transverse-mode operations of large-area VCSELs. We fabricate 980 nm VCSELs wit…
OBJECTIVE: The objective of the present investigation was to assess and compare the effect of surface capping by different groups (-OH, -COOH and -NH2) on tumor targeting potential of folate conjugated poly (propylene imine) (PPI) (F-PPI) dendrimers using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (…
We probe the onset and effect of contact changes in soft harmonic particle packings which are sheared quasistatically. We find that the first contact changes are the creation or breaking of contacts on a single particle. We characterize the critical strain, statistics of breaking versus making a contact, and ratio of…
Motivated by the recent findings of potential topological insulators and good high-temperature thermoelectric materials in the half-Heusler compounds based on heavy metals, we combine first-principles and Boltzmann transport theory to systematically study the electronic structure and thermoelectric performance of half…
We performed density functional theory calculations on heterostructures of single layers of hexagonal BN and ${\mathrm{MoS}}_{2}$ to assess the effect of doping in the BN sheet and of interstitial Na atoms on the electronic properties of the adjacent ${\mathrm{MoS}}_{2}$ layer. Our calculations predict that $n$ doping…
Ultrafast photoinduced transitions of a one-dimensional Mott insulator into two distinct electronic phases, metal and charge-density-wave (CDW) state, were achieved in a bromine-bridged Pd-chain compound [$\mathrm{Pd}{(\mathrm{en})}_{2}\mathrm{Br}]{({\mathrm{C}}_{5}\text{\ensuremath{-}}\mathrm{Y})}_{2}{\mathrm{H}}_{2}…
A manganese(II) complex with a ligand containing an oxidizable quinol group serves as a turn-on sensor for H2O2. Upon oxidation, the relaxivity of the complex in buffered water increases by 0.8 mM(-1) s(-1), providing a signal that can be detected and quantified by magnetic resonance imaging. The complex also serves a…
Although the use of nickel oxide in supercapacitor electrodes has been reported extensively, the effect of incorporating copper in the binary compound is not known. Arrays of nickel copper oxide nanowires on the current collector via a simple and industrially compatible route have been successfully synthesized. A syst…
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 Nancy A. Burns, Michael A. Naclerio, Saad A. Khan, Akbar Shojaei, Srinivasa R. Raghavan; Nanodiam…
The structure of Bi2Te3 (Seebeck coefficient Standard Reference Material (SRM™ 3451)) and the related phase Sb2Te3 have been characterized as a function of temperature using the neutron powder diffraction (NPD) and the extended X-ray absorption fine structure (EXAFS) techniques. The neutron structural studies were car…
ABSTRACT Incorporating active agents, reinforcing structure by crosslinking, thus changing release properties, can be listed as possible modifications in preparation methods of biopolymer fibers. This study introduces oleuropein, major component of olive leaf extract (OLE), as a natural functional crosslinker for elec…
Employing nitronyl nitroxide lanthanide(III) complexes as metallo-ligands allowed the efficient and highly selective preparation of three series of unprecedented hetero-tri-spin (Cu-Ln-radical) one-dimensional compounds. These 2p-3d-4f spin systems, namely [Ln3Cu(hfac)11(NitPhOAll)4] (Ln(III) = Gd 1Gd, Tb 1Tb, Dy 1Dy;…
PURPOSE: Conventional MRI using contrast agents is semiquantitative because it is inherently sensitive to extravoxular susceptibility artifacts, field inhomogeneity, partial voluming, perivascular effects, and motion/flow artifacts. Herein we demonstrate a quantitative contrast-enhanced MRI technique using ultrashort…