One-pot facile synthesis of Janus particles with tailored shape and functionality
This communication describes a novel strategy for the synthesis of silica Janus particles with controlled shape and functionality using a facile wet-chemical approach.
Materials Literature
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Geometry Pattern for the Wire Organic Electrochemical Textile Transistor
Polyelectrolytes are promising materials as gate dielectrics in organic electrochemical transistor. On the other side, the fibre form transistor has become one of the most interesting topics in the field of smart textiles. The use of PEDOT:PSS to realize a parallel wire electrochemical textile transistor has been repo…
Synthesis and characterization of thianthrene-based poly(phenylene sulfide)s with high refractive index over 1.8
Highly refractive thianthrene-based poly(phenylene sulfide)s (TPPSs) have been developed. The TPPSs were prepared from 2,7-difluorothianthrene and dithiols, including 4,4′-thiobisbenzenethiol (TBBT), m-benzenedithiol (mBDT), or sodium sulfide nonahydrate based on aromatic nucleophilic substitution reactions, and showe…
Effect of Sr-Doped LaCoO3 and LaZrO3 Infiltration on the Performance of SDC-LSCF Cathode
The effects on performance of commercially produced solid oxide fuel cell (SOFC) were evaluated for two types of cathode infiltration: a mixed ionic-electronic conductor and an electronic insulator. The bi-layered cathode backbone consists of a thin, dual-phased functional layer containing Sm 2 O 3 -doped CeO 2 (SDC)…
Aggregation-induced emission of tetraphenylethene derivative as a fluorescence method for probing the assembling/disassembling of amphiphilic molecules
The aggregation-induced emission (AIE) of a 1,2-diphenyl-1,2-di(p-tolyl)ethene (TPE) was explored as a novel fluorescence method for probing the assembling/disassembling of amphiphilic molecules. The fluorescence intensity was able to monitor the formation of micelles and determine the critical micelle concentration (…
Fabrication of CoFe2O4 hollow fibers by direct annealing of the electrospun composite fibers and their magnetic properties
CoFe2O4 hollow fibers have been fabricated by direct annealing of electrospun polyvinylpyrrolidone (PVP)/nitrate salts composite nanofibers. In this approach, composite fibers were firstly synthesized by electrospinning PVP/nitrate salts solution, and then calcined at high temperature with appropriate heating rate to…
Suppressing the Electromagnetic Scattering With an Helical Mantle Cloak
Following our recent findings on achieving invisibility and transparency using low-profile mantle cloaks, we propose a practical implementation of an RF cloak made of a simple metallic helical sheath, whose anisotropic surface impedance can provide scattering cancellation for dielectric cylinders over a moderately bro…
Amplification of localized surface plasmon resonance signals by a gold nanorod assembly and ultra-sensitive detection of mercury
Controlled assembly of gold nanorods induced by Na(3)PO(4) leads to a significant amplification of localized surface plasmon resonance (LSPR) signals. The strong affinity between Au and Hg alters the coupled LSPR signals due to the amalgamation of Hg and Au. This allows detection of Hg in aqueous solutions with ultra-…
Water-Stable Electrospun Zein Fibers for Potential Drug Delivery
This paper reports the development of electrospun zein fibers with improved water stability and tensile strength for potential drug delivery. The low morphological stability in aqueous environment and poor mechanical properties in dry and wet states have restricted the applications of electrospun protein materials, th…
Low Pressure Chemical Vapor Deposition of Aluminum-Doped Zinc Oxide for Transparent Conducting Electrodes
We carried out comprehensive studies on structural, optical, and electrical properties of aluminum-doped zinc oxide (AZO) films deposited by low pressure chemical vapor deposition (LP-CVD). The growth rates of LP-CVD AZO films increased slightly with Al doping. In addition, the resistivity was strongly dependent on th…
Facile one-pot synthesis of Pt nanoparticles /SBA-15: an active and stable material for catalytic applications
Pt/SBA-15 with an enhanced surface area but unchanged pore diameter (compared to pure SBA-15) and a Pt average particle size of ∼9 nm shows a high and stable activity for both gas-phase CO oxidation and liquid-phase cyclooctadiene hydrogenation. No intrinsic change in the structure of the catalyst occurs after several…
Fused perylenebisimide–carbazole: new ladder chromophores with enhanced third-order nonlinear optical activities
A series of ladder chromophores featuring planar structures of fused perylenebisimide and carbazole have been efficiently synthesized via photocyclization under sun light. Compared to N,N'-bis(3-pentyl) perylenebisimide (PBI-1), they show remarkably enhanced nonlinear properties.
Direct conversion of polyamides to ω-hydroxyalkanoic acid derivatives by using supercritical MeOH
We examined the decomposition of polyamides such as nylon-6 and nylon-12 by using supercritical MeOH as the reaction media. The treatment of waste nylon-6 with supercritical MeOH resulted in smooth depolymerization, forming caprolactam as the first product which was then converted to a mixture of methyl 6-hydroxycapro…
Ca5La5(SiO4)3(PO4)3O2:Ce3+,Mn2+: A Color-Tunable Phosphor with Efficient Energy Transfer for White-Light-Emitting Diodes
A series of single-composition color-tunable phosphors Ca 5 La 5 (SiO 4 ) 3 (PO 4 ) 3 O 2 : Ce 3+ ,Mn 2+ (CLSPO:Ce 3+ ,Mn 2+ ) are synthesized by solid-state reaction, and their luminescence properties are investigated. The obtained phosphors exhibit high absorption and strong excitation bands in the wavelength range…
Foldamer with a spiral perylene bisimide staircase aggregate structure
Although the precise control of dye–dye interactions is known to be of fundamental importance to achieve desired functional properties in π-conjugated materials, there are only sporadic examples where precise structural control of dye–dye interactions could be achieved by the attachment of the chromophores to an oligo…
Experimental and DFT studies of gold nanoparticles supported on MgO(111) nano-sheets and their catalytic activity
A wet chemical preparation of MgO with the (111) facet as the primary surface has recently been reported and with alternating layers of oxygen anions and magnesium cations, this material shows unique chemical and physical properties. The potential to utilize the MgO(111) surface for the immobilization of metal particl…
Mesoporous Ce1−xZrxO2 solid solution nanofibers as high efficiency catalysts for the catalytic combustion of VOCs
Macroporous networks assembled by interconnected mesoporous Ce1−xZrxO2 solid solution nanofibers were prepared using an electrospinning technique followed by a self-sustaining combustion procedure. This hierarchical porosity helped the mass transfer and resulted in a much higher catalytic activity and stability for th…
The eccentric connectivity index of $TUC_4C_8(R)$ nanotubes
The eccentric connectivity index ${;\xi};(G)$ of a graph $G$ is defined as ${;\xi};(G) = \sum _{;u \in V(G)}; deg(u) \varepsilon (u)$, where $deg(u)$ denotes the degree of the vertex $u$ and ${;\varepsilon};(u)$ is the largest distance between u and any other vertex v of G. In this paper we present exact formulas for…
Comparative degradation kinetic studies of three biopolymers: Chitin, chitosan and cellulose
Cellulose, chitin and chitosan are the most abundant biopolymer on earth and constitute an important class of biodegradable materials. The decomposition of three major biopolymers viz. chitin, chitosan and cellulose are studied using simultaneous thermal analysis i.e. thermogravimetry/differential thermal analyzer (TG…
Flow Behavior of Nanoparticle Stabilized Drilling Fluids and Effect of High Temperature Aging
Nanoclay and nanosilica were used to stabilize invert emulsion model drilling fluids for HTHP application. Though each nanomaterial can stabilize the emulsion by itself, best properties were obtained when both were used. Yield stress and plastic viscosity were found to be dependent on composition and the hydrophobic/h…