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Cavity-Photon Controlled Thermoelectric Transport through a Quantum Wire
We investigate the influence of a quantized photon field on thermoelectric transport of electrons through a quantum wire embedded in a photon cavity. The quantum wire is connected to two electron reservoirs at different temperatures leading to the generation of a thermoelectric current. The transient thermoelectric cu…
Photoluminescence Quenching of Colloidal CdSe and CdTe Quantum Dots by Nitroxide Free Radicals
Quantum dots (QDs) and other quantum confined semiconductor nanomaterials are emerging as an important class of materials for a variety of applications involving electronic processes. Here, we investigate QD–free radical interactions, focusing on II–VI semiconductor QDs (CdSe and CdTe) and TEMPO (2,2,6,6-tetramethylpi…
Investigation of Scale Inhibition Mechanisms Based on the Effect of HEDP on Surface Charge of Calcium Carbonate
Abstract 1-Hydroxyethylidene-1,1-diphosphonic acid is a widely used CaCO3 scale inhibitor. To probe its inhibition mechanisms, the effect of 1-Hydroxyethylidene-1,1-diphosphonic acid on surface charge and crystalline form of CaCO3 scale was investigated. The results show that CaCO3 originated from the equimolar mixtur…
Electromagnetically Induced Transparency Analogue by Self‐Complementary Terahertz Meta‐Atom
In the past years, many researchers have tried to realize the electromagnetically induced transparency (EIT) phenomena from the metamaterial arrays for the attractable applications such as slow light devices, novel optical communication systems, and nonlinear optical devices. Most of metamaterial enabled EIT analogues…
Synthesis of polyaniline-modified mesoporous-silica containers for anticorrosion coatings via in-situ polymerization and surface-protected etching
An efficient type of container for anticorrosion coating based on polyaniline (PANI) modified mesoporous silica (pS) sphere has been first prepared via in-situ polymerization and surface-protected etching. The PANI-modified containers not only show higher concentration of loaded inhibitor than pS, but also protect ste…
MFM Study of a Sintered Nd–Fe–B Magnet: Analyzing Domain Structure and Measuring Defect Size in 3-D View
This paper describes the use of magnetic force microscopy (MFM) to investigate the domain structure of sintered Nd-Fe-B magnet in a thermally demagnetized state. Observations are made at both perpendicular and parallel surfaces to the alignment axis (easy axis). Clear magnetic contrast images in 3-D view with defined…
Exfoliation of Boron Nitride Platelets by Enhanced Interfacial Interaction with Polyethylene
Hexagonal boron nitride (BN) platelets are used for fabrication of ultrahigh molecular weight polyethylene (UHMWPE)/BN composite fibers using a flow‐crystallization process. As‐spun fibers are subsequently drawn near the UHMWPE melting temperature. Interfacial crystallization of UHMWPE is observed on the surfaces of t…
On clarification of haze in polypropylene
The mechanism of reducing light scattering in isotactic polypropylene (i-PP), through the addition of so-called clarifying agents, is studied with small-angle light scattering (SALS) and scanning electron microscopy (SEM). The clarifying agents used in this study depict monotectic phase behavior with i-PP, crystallizi…
Slip-mediated dewetting of polymer microdroplets
Classical hydrodynamic models predict that infinite work is required to move a three-phase contact line, defined here as the line where a liquid/vapor interface intersects a solid surface. Assuming a slip boundary condition, in which the liquid slides against the solid, such an unphysical prediction is avoided. In thi…
Application of Gold Nanorods for Photothermal Therapy in Ex Vivo Human Oesophagogastric Adenocarcinoma
Gold nanoparticles are chemically fabricated and tuned to strongly absorb near infrared (NIR) light, enabling deep optical penetration and therapy within human tissues, where sufficient heating induces tumour necrosis. In our studies we aim to establish the optimal gold nanorod (GNR) concentration and laser power for…
Delivering Single-Walled Carbon Nanotubes to the Nucleus Using Engineered Nuclear Protein Domains
Single-walled carbon nanotubes (SWCNTs) have great potential for cell-based therapies due to their unique intrinsic optical and physical characteristics. Consequently, broad classes of dispersants have been identified that individually suspend SWCNTs in water and cell media in addition to reducing nanotube toxicity to…
Unipolar Fatigue Behavior of BCTZ Lead‐Free Piezoelectric Ceramics
( Ba , Ca )( Ti , Zr ) O 3 lead‐free piezoelectric ceramics have been considered to be one of the most potential lead‐free alternatives for PZT in the room‐temperature range. The stability of the piezoelectric performance during unipolar cycling is investigated in this study. It is found that the unipolar fatigue beha…
Preparation and photoluminescence enhancement in terbium(III) ternary complexes with β-diketone and monodentate auxiliary ligands
A series of new solid ternary complexes of terbium(III) ion based on β-diketone ligand acetylacetone (acac) and monodentate auxiliary ligands (aqua/urea/triphenylphosphineoxide/pyridine-N-oxide) had been prepared. The structural characterizations of synthesized ternary compounds were studied by means of elemental anal…
The Partial Oxidation of Methane Over Pd/Al2O3 Catalyst Nanoparticles Studied In-Situ by Near Ambient-Pressure X-ray Photoelectron Spectroscopy
Near ambient-pressure X-ray photoelectron spectroscopy (NAP-XPS) is used to study the chemical state of methane oxidation catalysts in-situ. Al 2 O 3 –supported Pd catalysts are prepared with different particle sizes ranging from 4 to 10 nm. These catalysts were exposed to conditions similar to those used in the parti…
Catalytically Active Rh Sub‐Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures
Abstract The discovery that gold catalysts could be active for CO oxidation at cryogenic temperatures has ignited much excitement in nanocatalysis. Whether the alternative Pt group metal (PGM) catalysts can exhibit such high performance is an interesting research issue. So far, no PGM catalyst shows activity for CO ox…
Hydrogelation and Crystallization of Sodium Deoxycholate Controlled by Organic Acids
The gelation and crystallization behavior of a biological surfactant, sodium deoxycholate (NaDC), mixed with l-taric acid (L-TA) in water is described in detail. With the variation of molar ratio of L-TA to NaDC (r = n(L-TA)/n(NaDC)) and total concentration of the mixtures, the transition from sol to gel was observed.…
Effect of Polyhydroxybutyrate (PHB) storage on l-arginine production in recombinant Corynebacterium crenatum using coenzyme regulation
BACKGROUND: Corynebacterium crenatum SYPA 5 is the industrial strain for L-arginine production. Poly-β-hydroxybutyrate (PHB) is a kind of biopolymer stored as bacterial reserve materials for carbon and energy. The introduction of the PHB synthesis pathway into several strains can regulate the global metabolic pathway.…
In Vitro Effect of 30 nm Silver Nanoparticles on Adipogenic Differentiation of Human Mesenchymal Stem Cells
With the combined use of silver nanoparticles (Ag NPs) and human bone marrow derived mesenchymal stem cells (hMSCs) in bone tissue engineering, more knowledge of the effects of Ag NPs on hMSCs is required. Up to date, researches mainly focused on the cytotoxicity and genotoxicity of Ag NPs, only few studies discussed…
Effects of firing temperature on the microstructures and properties of porous mullite ceramics prepared by foam-gelcasting
Porous mullite ceramics were prepared at 1300–1600°C for 2 h via a foam-gelcasting route using industrial-grade mullite powders as the main raw material, Isobam 104 as the dispersing and gelling agent, triethanolamine lauryl sulphate as the foaming agent and sodium carboxymethyl cellulose as the foam stabilising agent…