Anisotropically structured magnetic aerogel monoliths.

Texturing of magnetic ceramics and composites by aligning and fixing of colloidal particles in a magnetic field is a powerful strategy to induce anisotropic chemical, physical and especially mechanical properties into bulk materials. If porosity could be introduced, anisotropically structured magnetic materials would be the perfect supports for magnetic separations in biotechnology or for magnetic field-assisted chemical reactions. Aerogels, combining high porosity with nanoscale structural features, offer an exceptionally large surface area, but they are difficult to magnetically texture.

Osteochondromas of the cervical spine in atypical location.

In the current article we review the available English literature by pubmed search engine on the topic of osteochondromas and their location in the cervical spine. The focus is to investigate the location of the lesions in cervical spine and to analyze clinical presentations and symptoms of patients, the aetiology and histopathology examination of the masses. In addition we report a rare illustrative case of a 62 year-old man with an osteochondroma of the cervical spine.