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Armazenamento de hidrogénio num aparelho Sievert com controlo térmico
Glória, Paulo Ricardo Rosa Marcelo daA optimização das condições de armazenagem representa um dos grandes passos em falta para a tecnologia do hidrogénio se tornar um vector energético de utilização intensiva. O método experimental mais comum de classificar potenciais materiais para armazenamento de hidrogénio é o método volumétrico de Sievert. O aparelho Sievert calcula a quantidade de gás sorvida através da medição da alteração de pressão em con...
Squaric acid: a valuable scaffold for developing antimalarials?
Kumar, S. Praveen; Glória, Paulo M. C.; Gonçalves, Lídia M.; Gut, Jiri; Rosenthal, Philip J.; Moreira, Rui; Santos, Maria M. M.We describe here the synthesis of a library of thirty-eight squaric derivatives and the evaluation of activity against papain-, falcipain-2- and a chloroquine-resistant strain of P. falciparum. The most active compounds combine significant antiplasmodial activity with minimal cytotoxicity.
Monitoring antibiotic consumption in the surgery and orthopaedics.
Caldeira, Luís; Teixeira, Inês; Vieira, Isaura; Batel Marques, Francisco; Santiago, Luiz Miguel; Rodrigues, Victor; Fonseca, António; Varanda, JorgeMonitoring antibiotic consumption is a valuable tool which has been increasingly used in the last years due to the current concern with the emergence of resistant microbial strains. The present study aimed at monitoring antibiotic consumption, evaluating the economic impact of hospital antibiotic prescription and assessing the relationship between the prescribed antibiotics and the indications for either prophy...
SbCl5—wet acetonitrile: a new system for chemoselective O-desilylation
Glória, Paulo M. C.; Prabhakar, Sundaresan; Lobo, Ana M.; Gomes, MárioAbstract—A new efficient method for deprotection of TBDMS derivatives of phenols, primary alcohols, carboxylic acids and secondary amines, consisting of SbCl5 and MeCN with 0.1% water (w/v), is reported. It effects inter alia desilylation of a CH2OTBDMS group in the presence of a ketal function.
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