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A carbon dioxide (CO(2))-based microencapsulation technique was used to impregnate indomethacin, a model drug, into biodegradable polymer nanoparticles. Compressed CO(2) was emulsified into aqueous suspensions of biodegradable particles. The CO(2) plasticizes the biodegradable polymers, increasing the drug diffusion rate in the particles so that drug(More)
Thrombotic thrombocytopenic purpura has been treated with plasmapheresis, exchange transfusion, splenectomy, antiplatelet compounds, glucocorticoids, and vincristine sulfate infusion. We describe a patient with thrombotic thrombocytopenic purpura who has failed on treatment with plasmapheresis, antiplatelet compounds, glucocorticoids, and vincristine, was(More)
Membranes are crucial in modern industry and both new technologies and materials need to be designed to achieve higher selectivity and performance. Exotic materials such as nanoparticles offer promising perspectives, and combining both their very high specific surface area and the possibility to incorporate them into macrostructures have already shown to(More)
Although emergent properties from self-assembly of carbon nanotubes have been described in various forms there is so far no systematic process for the preparation of dense arrays of aligned nanotubes. Here we present a systematic study on the analysis of the alignment of carbon nanotubes within solvent densified carbon nanotube forests. Highly periodic(More)
The effect of sonication temperature on the debundling of carbon nanotube (CNT) macro-bundles is reported and demonstrated by analysis with different particle sizing methods. The change of bundle size over time and after several comparatively gentle sonication cycles of suspensions at various temperatures is reported. A novel technique is presented that(More)
Pancoast syndrome is usually secondary to lung cancer. We report a patient with Pancoast syndrome in whom a biopsy specimen of a cervical mass at first thought to be anaplastic carcinoma was found to stain positively for leukocyte common antigen and negatively for keratin, epithelial membrane antigen, and alpha-fetoprotein. A diagnosis of malignant lymphoma(More)
In this study, we focus on processing and characterizing composite material structures made of carbon nanotubes (CNTs) and reproducibly engineering macro-pores inside their structure. Highly porous bucky-papers were fabricated from pure carbon nanotubes by dispersing and stabilizing large 1 μm polystyrene beads within a carbon nanotube suspension. The(More)
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