Materials Literature
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Although many Archaea have AMP-Acs (acetyl-coenzyme A synthetase) and ADP-Acs, the extant methanogenic genus Methanosarcina is the only identified Archaeal genus that can utilize acetate via acetate kinase (Ack) and phosphotransacetylase (Pta). Despite the importance of ack as the potential urkinase in the ASKHA phosp…
The accurate estimation of drug release kinetics of polymeric vehicles is an indispensable prerequisite for the developments of successful drug carriers for cancer therapy. The present investigation reports the development of time-resolved fluorescence spectroscopic approach for the real-time release kinetics of fluor…
A ratiometric fluorescent probe 2-(benzimidazol-2-yl)phenyl phosphoric acid (1) for alkaline phosphatase (ALP) is designed and synthesized. The method employs the modulation of the excited-state intramolecular proton transfer (ESIPT) process of 2-(2'-hydroxyphenyl)benzimidazole (HPBI) through the hydroxyl group protec…
In this letter, we report a fast, simple, and single step approach to the preparation of transparent super-hydrophobic coatings on a copper conductor via atmosphere pressure arc discharges. The preparation procedures, hydrophobic characteristics, anti-pollution capability, and transparency of the super-hydrophobic coa…
Molecular dynamics simulations are performed to develop new parameters for acetamide using a systematic procedure proposed by Salas et al., where the atomic charges were fitted to reproduce the experimental dielectric constant and the Lennard-Jones parameters to match the surface tension and density. The parameters fo…
We employ phase-field modeling to explore the elastic properties of artificially created 1-D domain walls in (001)p-oriented BiFeO3 thin films, composed of a junction of the four polarization variants, all with the same out-of-plane polarization. It was found that these junctions exhibit peculiarly high electroelastic…
The threshold displacement energy ${E}_{d}$ has been determined for graphene and 216 different ($n, m$) single-walled carbon nanotube chiralities, with $5\ensuremath{\le}n\ensuremath{\le}20$ and $0\ensuremath{\le}m\ensuremath{\le}n$, under several model conditions using classical molecular dynamics. The model conditio…
ABSTRACT Sensitive nanohydrogels were prepared via surfactant free emulsion copolymerization of N ‐vinylcaprolactam and poly(ethylene glycol) methyl ether methacrylate, and either N ‐vinylpyrrolidone (VP) or 2‐methacryloyloxybenzoic acid (2MBA) to adjust the transition temperature ( T tr ). The crosslinker ethylene gl…
Differential optical detection of a magnetic resonance induced in nitrogen-vacancy (NV) centers in diamond is shown to enable a high-spatial-resolution room-temperature magnetic-field gradiometry on a fiber platform. An ultracompact design of this fiber-based solid-state magnetic gradiometer is achieved by integrating…
We study the stability of weak polyacid brush (WPAB) gradients in aqueous media covering a range in grafting density (σ) spanning 0.05–0.5 chains/nm 2 using two analogous surface-anchored bromoisobutyrate-based initiators for atom transfer radical polymerization (ATRP) bearing either an ester or amide linker. Variatio…
We report neutron scattering measurements which reveal spin-liquid polymorphism in an "11" iron chalcogenide superconductor. It occurs when a poorly metallic magnetic state of FeTe is tuned toward superconductivity by substitution of a small amount of tellurium with isoelectronic sulfur. We observe a liquid-like magne…
The unique properties and applications of iron oxide and Au nanoparticles have motivated researchers to synthesize and optimize a combined nanocomposite containing both. By using various polymers such as chitosan, some of the problems of classic core-shell structures (such as reduced saturation magnetization and thick…
Emission of N2O from mobile and off-road engine is now being currently regulated because of its high impact compared to that of CO2, thereby implying that N2O formation from the exhaust gas after-treatment system should be suppressed. Selective catalytic reduction using vanadium supported TiO2 catalyst in mobile and o…
We study alkali-metal adsorption on supported graphene by means of density-functional-theory calculations that include dispersion corrections. Graphene supported by the Au/Ni(111) surface is an important system for fundamental studies because this surface allows one to support graphene, preserving the electronic prope…
Abstract This paper discloses that the oxygenation of cyclohexane by dioxygen (O 2 ) to cyclohexanol and cyclohexanone over three vanadium‐substituted tungstophosphoric acids (PW 11 V 1 , PW 10 V 2 , PW 9 V 3 ) can occur in MeCN under visible‐light irradiation, but provides very low cyclohexane conversion (0.8–2.4 %)…
// Chao-Chih Wu 1, 3 , Yuh-Cheng Yang 2 , Yun-Ting Hsu 3 , T.-C. Wu 5, 6, 7, 8 , Chien-Fu Hung 5, 6, 7, 8 , Jung-Tang Huang 1 , Chih-Long Chang 2, 3, 4 1 Graduate Institute of Mechanical and Electrical Engineering, National Taipei University of Technology, Taipei City, Taiwan 2 Department of Obstetrics and Gynecology,…
A type of composite photovoltaic system that can improve the absorption of longer wavelength photons for ultrathin silicon solar cells is presented by synergistically exploiting spectral upconversion and plasmonic light manipulation under a reconfigurable platform where individual module components can be independentl…
Phage shock protein A (PspA) belongs to the highy conserved PspA/IM30 family and is a key component of the stress inducible Psp system in Escherichia coli. One of its central roles is the regulatory interaction with the transcriptional activator of this system, the σ(54) enhancer-binding protein PspF, a member of the…
Multicolor polymer nanoparticles (or dots) were prepared via the reaction between hyperbranched polyethyleneimine (PEI) and aldehydes, and when the concentration of aldehydes was lower, the final mixture displayed gelation behavior. This phenomenon can be applied to visual detection of aldehydes. Moreover, the colors…
A method is described for determining the solubility of multicomponent crystalline compounds from clear points upon sample dilution at a constant temperature. Clear points are established by continuously adding a solvent mixture to a suspension of known composition until a clear solution appears. For validation, this…