Materials Literature
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Gas sensors based on semiconductor-metal-oxide nanomaterial have recently emerged due to their advantages of offering large surface to volume ratio. Unfortunately, these sensors are vulnerable to environmental humidity and lack of selectivity when exposed to common gases in air. In this letter, a novel morphology of Z…
This paper shows the results and the limitations of a 21% N-Cz 239-cm2screen-printed cell with blanket p+emitter and n+back surface field. In addition, we show the properties and impact of tunnel oxide capped with doped n+polysilicon and metal on the back side, which can overcome those limitations. Since both the dope…
SIGNIFICANCE: Recent research has identified key roles for reactive oxygen species (ROS)/reactive nitrogen species (RNS) in redox signaling, but much remains to be uncovered. Molecular imaging tools to study these processes must not only be selective to enable identification of the ROS/RNS involved but also reversible…
Silicon nanowires (SiNWs) attached to a wafer substrate are converted to inversely tapered silicon nanocones (SiNCs). After excitation with visible light, individual SiNCs show a 200-fold enhanced integral band-to-band luminescence as compared to a straight SiNW reference. Furthermore, the reverse taper is responsible…
Flaky silver powders with nano-thickness and a smooth surface were prepared through a nanofilm transition method which is environmentally-friendly.
A novel N-doped rattle-like hierarchical anatase superstructure with a spherical porous core and hierarchical shell composed of ultrathin nanosheets was synthesized via a facile template-free method, which exhibits enhanced photocatalytic activity under visible light illumination.
The piggyBac (PB) transposon is one of the most useful transposable elements, and has been successfully used for genetic manipulation in more than a dozen species. However, the efficiency of PB-mediated transposition is still insufficient for many purposes. Here, we present a strategy to enhance transposition efficien…
Selective removal of organic acids from biomass pyrolysis vapors was demonstrated. A broad adsorbent range was tested with CaCO3 showing the best selectivity. Extensive material characterization demonstrated that the acid removal occurred through monolayer adsorption on CaCO3. Adsorbent regeneration was achieved by in…
In this paper, we study the generalized thermoelastic vibration of a bounded nano-beam resonator under fractional order theory of thermoelasticity. The theory of generalized thermoelasticity with one relaxation time can be established in the limit as the special cases of the present model. The effect of fractional par…
AIM: The aim of the study is to develop scaffolds that mimic native tissue properties for effective regeneration of the myocardium, which is affected by the gradual thinning of left ventricular tissue after an infarction. MATERIALS & METHODS: Heterogenous nanofibrous scaffolds made of poly(lactide-co-caprolactone) and…
A diaryl-linked tripyridyl ligand (L), 2,6-bis[4-(3-pyridinyl)phenyl]-4-(hydroxymethyl)pyridine, was synthesised in good yield (57%) exploiting the Pd-catalysed Suzuki cross-coupling method and used to assemble a new [Pd2L4]4+ metallosupramolecular cage architecture. These systems have been characterised by NMR, IR an…
Abstract It is still open to question which method is the best for quantifying organic carbon ( OC ) and inorganic carbon ( IC ) in soils containing dolomite. The aims of this study were (1) to compare the accuracy of a novel thermal gradient (ThG), the classical calcimeter ( CALC ) and the loss‐on‐ignition ( LOI ) me…
Powering up silicon wafer with micropatterned functional polymer brushes: a new route towards the development of on-chip integrated electrochemical sensors.
To dispose of large volumes of oilfield-produced water, an environmentally friendly method that reuses advanced-softened, silica-rich, oilfield-produced water (ASOW) as feedwater was implemented via a 10-month pilot-scale test in oilfield. However, salt deposition detrimental to the efficiency and security of steam in…
OBJECTIVE: Early diagnosis of malignant tumors is essential to successfully plan a radical and curative approach. In this study we describe the direct radiolabeling of doxorubicin (DOX) at physiological pH to identify murine breast tumor (4T1 cells)-bearing BALB/c mice. MATERIALS AND METHODS: Technetium-99m (99mTc) DO…
Abstract The unprecedented dependence of final charge separation efficiency as a function of donor–acceptor interaction in covalently‐linked molecules with a rectilinear rigid oligo‐p‐xylene bridge has been observed. Optimization of the donor–acceptor electronic coupling remarkably inhibits the undesirable rapid decay…
Chlorin e6 is a tricarboxylic acid degradation product of chlorophyll a. Four chlorin e6 bis(amino acid) conjugates were regioselectively synthesized bearing two aspartate conjugates in the 13(1),17(3)- and 15(2),17(3)-positions, or at the 13(1),15(2)via an ethylene diamine linker. One additional conjugate bearing two…
Energy conversion schemes have attracted considerable attention in recent years. A large amount of research effort has focused on fullerenes, particularly C60 and its derivatives, as suitable electron acceptors, owing to their outstanding properties. In this context, C59 N-based donor-acceptor systems have lately attr…
This study describes how various loadings of two ions with different size and charge, such as silver and tantalum, can affect the mechanical and biological properties of calcium silicate (CS).
PEDOT/Fe 3 O 4 hybrid is in situ polymerized and used as Pt-free counter electrode in dye-sensitized solar cell. Owing to large active area and low charge transfer resistance for the hybrid, the cell achieves a high power conversion efficiency of 8.69%.