A case of surgical treatment combined with interventional therapy for refractory hemodialysis access with catheter-related right atrial thrombosis.

This case report describes a surgical treatment combined with interventional therapy for a patient with refractory hemodialysis access combined with catheter-related right atrial thrombosis (CRAT). During surgery, an artificial graft was established from the left brachiocephalic vein to the right atrium and the right atrial thrombus was removed. After the operation, the tunneled cuffed catheter (TCC) was replaced with digital subtraction angiography (DSA).

Reductive dechlorination for remediation of polychlorinated biphenyls.

Technologies such as thermal, oxidative, reductive, and microbial methods for the remediation of polychlorinated biphenyls (PCBs) have previously been reviewed. Based on energy consumption, formation of PCDD/F, and remediation efficiency, reductive methods have emerged as being advantageous for remediation of PCBs. However, many new developments in this field have not been systematically reviewed.

Deposition of platinum nanoparticles on carbon nanotubes by supercritical fluid method.

Carbon nanotube-supported platinum nanoparticles with a 5-15 nm diameter size range can be synthesized by hydrogen reduction of platinum(ll) acetylacetonate in methanol modified supercritical carbon dioxide. X-ray photoelectron spectroscopy and X-ray diffraction spectra indicate that the carbon nanotubes contain zero-valent platinum metal and high-resolution transmission electron microscopy images show that the visible lattice fringes of platinum nanoparticles are crystallites. Carbon nanotubes synthesized with 25% by weight of platinum nanoparticles exhibit a higher activity for hydrogenation of benzene compared with a commercial carbon black platinum catalyst.