Saccharin as a salt former. Enhanced solubilities of saccharinates of active pharmaceutical ingredients
Saccharin, acting as a weak acid, forms salts with basic APIs and these salts have the desirable property of enhanced water solubility.
Materials Literature
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Microstructure and Mechanical Properties of Cu-Ni-Si Alloys
The microstructure and mechanical properties of thermo-mechanically treated Cu-2.0mass%Ni-0.5mass%Si alloys with and without 0.1mass%Mg have been investigated. The Mg addition increases the formation rate of disk-shaped Ni2Si particles. The Mg addition produces higher strength and resistance to stress relaxation. The…
Large pore cage type mesoporous carbon, carbon nanocage: a superior adsorbent for biomaterials
Novel large pore cage type mesoporous carbon molecular sieves, carbon nanocage, (CKT) with various pore diameters have been prepared from KIT-5 as inorganic templates synthesized at different temperature. It has been found that the textural parameters of the above mesoporous carbons can be easily tuned by a simple adj…
Chemical synthesis of PEDOT nanofibers
A one-step, room-temperature method is described to chemically synthesize bulk quantities of microns long, 100-180 nm diameter nanofibers of electrically conducting poly(3,4-ethylenedioxythiophene)(PEDOT) in the form of powders, or as optically transparent, substrate-supported films using a V2O5 seeding approach.
Highly sensitive signal detection of duplex dye-labelled DNA oligonucleotides in a PDMS microfluidic chip: confocal surface-enhanced Raman spectroscopic study
Rapid and highly sensitive detection of duplex dye-labelled DNA sequences in a PDMS microfluidic channel was investigated using confocal surface enhanced Raman spectroscopy (SERS). This method does not need either an immobilization procedure or a PCR amplification procedure, which are essential for a DNA microarray ch…
Fabrication and Performance of GDC-Impregnated (La,Sr)MnO[sub 3] Cathodes for Intermediate Temperature Solid Oxide Fuel Cells
High-performance (LSM) cathodes for intermediate temperature solid oxide fuel cells were fabricated by the ion impregnation of oxygen ion conducting Gd-doped (GDC) oxide. The microstructure of the GDC-impregnated LSM electrode was characterized by the uniform dispersion of very fine GDC particles in the LSM porous fra…
Fluorescence resonance energy transfer between a quantum dot donor and a dye acceptor attached to DNA
We show that direct coupling of a dye-labelled DNA (acceptor) to a quantum dot (QD) donor significantly reduces the donor-acceptor distance and improves the FRET efficiency: a highly efficient FRET (approximately 88%) at a low acceptor-to-donor ratio of 2 has been achieved at the single-molecule level.
Characterization and Properties of P(VdF-HFP)-Based Fibrous Polymer Electrolyte Membrane Prepared by Electrospinning
Microporous fibrous membranes were prepared from poly(vinylidenefluoride- co -hexafluoropropylene) P(VdF-HFP) solutions in an acetone/ N,N -dimethylacetamide mixture using the electrospinning method. Varying the P(VdF-HFP) polymer concentration in electrospinning can easily control the pore size and the porosity of th…
Phosphate Sorption in Aluminum‐ and Iron‐Rich Humus Soils
Groundwater discharge areas in boreal forest ecosystems can potentially be areas where Fe and Al accumulate in the forest floor and affect the solubility of P. This study was conducted to determine phosphate sorption properties using humus soils containing high native amounts of Al and Fe. Humus soils were collected f…
Cu Wettability and Diffusion Barrier Property of Ru Thin Film for Cu Metallization
The main issue of Cu metallization is the electromigration of Cu through the interface between Cu and the barrier or capping layer. To improve electromigration resistance at the Cu and barrier metal interface, insertion of a glue layer which enhances the adhesion of Cu onto the under layer may be effective. The wettab…
Organic–inorganic polymer hybrids prepared by the sol-gel method
This review focuses on some aspects of organic-inorganic hybrid materials prepared by the sol-gel method. This field has been studied worldwide as one of the nanotechnologies, and is now of current interest for both organic and inorganic scientists. The elaboration of organic–inorganic polymer hybrid materials using t…
The mineral phase in the cuticles of two species of Crustacea consists of magnesium calcite, amorphous calcium carbonate, and amorphous calcium phosphate
The cuticules (shells) of the woodlice Porcellio scaber and Armadillidium vulgare were analysed with respect to their content of inorganic material. It was found that the cuticles consist of crystalline magnesium calcite, amorphous calcium carbonate (ACC), and amorphous calcium phosphate (ACP), besides small amounts o…
Role of Orbitals in the Physics of Correlated Electron Systems
Rich properties of systems with strongly correlated electrons, such as transition metal (TM) oxides, is largely connected with an interplay of different degrees of freedom in them: charge, spin, orbital ones as well as crystal lattice. Specific and often very important role is played by orbital degrees of freedom. The…
The effect of the size, shape, and structure of metal nanoparticles on the dependence of their optical properties on the refractive index of a disperse medium
The effect of the size, shape, and structure of gold and silver nanoparticles on the dependence of their extinction and integral scattering spectra on the dielectric environment has been investigated. Calculations were performed using the Mie theory for spheres and nanoshells and the T -matrix method for chaotically o…
Mesoporous carbons with graphitic structures fabricated by using porous silica materials as templates and iron-impregnated polypyrrole as precursor
Templated mesoporous carbons containing graphitic structures and a well-developed porosity were synthesised by using mesoporous silica materials (i.e. SBA-15 and silica xerogel) as templates and polypyrrole as carbon precursor. The polypyrrole was synthesised by in situ polymerization of pyrrole which was infiltrated…
Organogel of an 8-quinolinol platinum(ii) chelate derivative and its efficient phosphorescence emission effected by inhibition of dioxygen quenching
A newly synthesized 8-quinolinol platinum(II) chelate derivative gelates various organic solvents, and the gel formed shows unique thermo- and solvatochromism of visible and phosphorescent colour in response to a sol-gel phase transition and possesses an attractive ability to inhibit dioxygen quenching of excited trip…
Shape-memory polymers as stimuli-sensitive implant materials.
Shape-memory polymers are stimuli-responsive materials. Upon exposure to an external stimulus, e.g. an increase in temperature, they have the capability of changing their shape. The shape-memory effect results from the polymer's structure and morphology in combination with a certain processing and programming technolo…
Luminescent oligo(tetraphenyl)silole nanoparticles as chemical sensors for aqueous TNT
Colloidal oligo(tetraphenyl)silole nanoparticles in THF/H2O suspensions show increased luminescence and offer a method to detect TNT in an aqueous environment.
Role of Chloride Ion in Passivity Breakdown on Iron and Nickel
The effects of Cl -on the electronic properties of the n-type passive film on Fe and the p-type passive film on Ni in pH 8.5 buffer solution were investigated using photocurrent spectroscopy and Mott-Schottky analysis in order to elucidate the mechanism of passivity breakdown on metals.Metastable pitting events were o…
Structural and Electrical Characterizations of Electrodeposited p-Type Semiconductor Cu[sub 2]O Films
Structural and Electrical Characterizations of Electrodeposited p-Type Semiconductor Cu2O Films, Mizuno, Kotaro, Izaki, Masanobu, Murase, Kuniaki, Shinagawa, Tsutomu, Chigane, Masaya, Inaba, Minoru, Tasaka, Akimasa, Awakura, Yasuhiro