Versatile acid solvents for pristine carbon nanotube assembly.

Chlorosulfonic acid and oleum are ideal solvents for enabling the transformation of disordered carbon nanotubes (CNTs) into precise and highly functional morphologies. Currently, processing these solvents using extrusion techniques presents complications due to chemical compatibility, which constrain equipment and substrate material options. Here, we present a novel acid solvent system based on methanesulfonic or -toluenesulfonic acids with low corrosivity, which form true solutions of CNTs at concentrations as high as 10 g/liter (≈0.

Washable, Sewable, All-Carbon Electrodes and Signal Wires for Electronic Clothing.

Smart wearable electronic accessories (e.g., watches) have found wide adoption; conversely, progress in electronic textiles has been slow due to the difficulty of embedding rigid electronic materials into flexible fabrics.

Temperature and pressure dependence of methane correlations and osmotic second virial coefficients in water.

We report methane's osmotic virial coefficient over the temperatures 275 to 370 K and pressures from 1 bar up to 5000 bar evaluated using molecular simulations of a united-atom description of methane in TIP4P/2005 water. In the first half of this work, we describe an approach for calculating the water-mediated contribution to the methane-methane potential-of-mean force over all separations down to complete overlap. The enthalpic, entropic, heat capacity, volumetric, compressibility, and thermal expansivity contributions to the water-mediated interaction free energy are subsequently extracted from these simulations by fitting to a thermodynamic expansion over all the simulated state points.

Note: Nonpolar solute partial molar volume response to attractive interactions with water.

The impact of attractive interactions on the partial molar volumes of methane-like solutes in water is characterized using molecular simulations. Attractions account for a significant 20% volume drop between a repulsive Weeks-Chandler-Andersen and full Lennard-Jones description of methane interactions. The response of the volume to interaction perturbations is characterized by linear fits to our simulations and a rigorous statistical thermodynamic expression for the derivative of the volume to increasing attractions.

Nd:YAG photodestruction of a presumed corneal Toxocara canis larva.

Purpose: To describe the technique of Nd:YAG photodestruction of a presumed Toxocara canis corneal larval migrans and to report the unique clinical combination of a corneal nematode and diffuse unilateral subacute neuroretinitis (DUSN).

Methods: Clinical case report.

Results: A 63-year-old white male presented with idiopathic neuroretinitis treated empirically with systemic anti inflammatory therapy.