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Synthesis of C60(OH)18-20 in aqueous alkaline solution under O2-atmosphere
Alves,Gustavo Catão; Ladeira,Luiz Orlando; Righi,Ariete; Krambrock,Klaus; Calado,Hállen Daniel; Gil,Rossimiriam Pereira de FreitasIn this work we report on an alternative synthesis of water-soluble fullerenes known as fullerols, aiming for biomedical applications. The synthesis is based on a process in which polyethylene glycol (PEG400) is used as phase-transfer catalyst between fullerene/benzene and aqueous NaOH solutions. The polyhydroxylation of the fullerenes occurs in the NaOH solution under a continuous flow of O2 to enhance the rea...
Pulmonary emphysema in a patient with Turner's syndrome.
de Sousa, A M; Serviço de Medicina I., Hospital Santo António dos Capuchos, Lisboa.; Lourenço, C; Barros, I; Martinho, T; Brás, A; Santos, T; Veloso, BTurner's Syndrome was first described in 1938 by Henry Turner and has an incidence of 1:3000 live female births. The authors present an unusual case of a 48-year-old woman with late diagnosed Turner's Syndrome. Whose karyotype was (46,X,i(Xq)), associated with a pulmonary emphysema and pulmonary hypertension. The case and the methods of study are presented. Some aspects of this case, namely the hypothesis of an...
Carcinoma of the lung. Review of a caseload of 12 years at a service of interna...
Colaço, M I; Serviço 1 Medicina, Hospital de Santo António dos Capuchos, Lisboa.; Estrada, H; Moreno, R; Veloso, BThe authors present a retrospective study of medical records of patients with lung cancer, admitted at the Service 1 of Internal Medicine of Santo António dos Capuchos Hospital during a 12 year period (1978-1989). Of the 112 selected patients, 50% had histologic diagnosis, the remaining had strong clinical radiographic, endoscopic and/or autopsic evidence of pulmonary malignancy or malignant cytology in sputum,...
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