Track topics on Twitter Track topics that are important to you
A dispersant for multiwall carbon nanotubes (MWCNTs) is proposed that fulfils the requirements of creating a uniform dispersion in the matrix and obtaining a good interface between CNTs and the matrix, and is soluble in generic nonpolar solvents. This dispersant is based on a long chain surfactant, called in this work dabcosil stearate, containing a stearate-based 18-carbon alkyl chain as an anion, and a silsesquioxane containing a bridged, positively charged 1,4-diazoniabicyclo[2.2.2]octane group. It provides not only a very good dispersion medium for the MWCNTs, but also a very good interface between MWCNTs and ceramic matrices, such as alumina and zirconia, prepared by the sol-gel method.
Instituto de Física, Universidade Federal do Rio Grande do Sul , PO Box 15051, CEP 91501-970 Porto Alegre, RS Brazil.
This article was published in the following journal.
Name: Langmuir : the ACS journal of surfaces and colloids
We study for the first time the resonant torsional behaviors of inorganic nanotubes, specifically tungsten disulfide (WS2) and boron nitride (BN) nanotubes, and compare them to that of carbon nanotube...
Uniform N-doped carbon nanotubes were obtained for the first time via a morphology-preserving thermal transformation of organic polymer nanotubes without any additional templates. These carbon nanotub...
A facile approach to prepare Cu complexes for an efficient oxygen reduction reaction (ORR) was developed. Copper complexes of 5-nitrophenanthroline were sandwiched between polyvinylimidazole layers wr...
We present a high-speed humidity sensor based on immobilization of Bovine Serum Albumin upon Multiwall Carbon Nanotube (IBC). A simple and versatile drop casting technique was employed to make the hum...
Carbon nanotubes (CNTs) have long been regarded as efficient free radical scavenger because of the large-conjugation system in their electronic structures. Hence, in spite of abundant reports on CNT r...
The objectives of this study are to characterize the clinical performance and wear mechanisms of all-ceramic posterior crowns. The wear rate of all-ceramic crowns and opposing enamel in s...
The present study was designed to evaluate, in premature babies with RDS breathing spontaneously, the efficacy of combined treatment with nasal continuous positive airway pressure (CPAP) a...
The objective of this pilot study is to examine the feasibility and safety of performing a larger trial to assess outcomes following treatment of meconium aspiration syndrome with surfacta...
The most frequent reason for failure of laminate veneers made of glass ceramics (feldspathic, leucite based and lithium silicate based ceramics) was fracture of the ceramic, Therefore, cer...
Inherited deficiencies in any one of 3 genes (surfactant protein B, surfactant protein C, and ATP-binding cassette transporter A3) can cause neonatal respiratory distress syndrome by disru...
A dark powdery deposit of unburned fuel residues, composed mainly of amorphous CARBON and some HYDROCARBONS, that accumulates in chimneys, automobile mufflers and other surfaces exposed to smoke. It is the product of incomplete combustion of carbon-rich organic fuels in low oxygen conditions. It is sometimes called lampblack or carbon black and is used in INK, in rubber tires, and to prepare CARBON NANOTUBES.
Nanometer-sized tubes composed of various substances including carbon (CARBON NANOTUBES), boron nitride, or nickel vanadate.
Nanometer-sized tubes composed mainly of CARBON. Such nanotubes are used as probes for high-resolution structural and chemical imaging of biomolecules with ATOMIC FORCE MICROSCOPY.
NANOTUBES formed from cyclic peptides (PEPTIDES, CYCLIC). Alternating D and L linkages create planar rings that self assemble by stacking into nanotubes. They can form pores through CELL MEMBRANE causing damage to cells.
A pulmonary surfactant associated protein that plays a role in alveolar stability by lowering the surface tension at the air-liquid interface. It is a membrane-bound protein that constitutes 1-2% of the pulmonary surfactant mass. Pulmonary surfactant-associated protein C is one of the most hydrophobic peptides yet isolated and contains an alpha-helical domain with a central poly-valine segment that binds to phospholipid bilayers.
A generic drug (generic drugs, short: generics) is a drug defined as "a drug product that is comparable to brand/reference listed drug product in dosage form, strength, route of administration, quality and performance characteristics, and intended u...