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1.
J Parasit Dis ; 46(4): 941-944, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36457772

RESUMO

Echinococcosis, commonly known as hydatid disease, is a zoonotic infection caused by dog tapeworm Echinococcus granulosus. Hydatid disease of the head and neck region is scarcely reported even in endemic areas. We herein report a case with with neck swelling and respiratory symptoms subsequently diagnosed to have disseminated echinococcosis of the neck and left lung.

2.
J Hazard Mater ; 182(1-3): 162-8, 2010 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-20580161

RESUMO

A series of novel composites based on graphene oxide (GO) cross-linked with ferric hydroxide was developed for effective removal of arsenate from contaminated drinking water. GO, which was used as a supporting matrix here, was firstly treated with ferrous sulfate. Then, the ferrous compound cross-linked with GO was in situ oxidized to ferric compound by hydrogen peroxide, followed by treating with ammonium hydroxide. The morphology and composition of the composites were analyzed by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The ferric hydroxide was found to be homogenously impregnated onto GO sheets in amorphous form. These composites were evaluated as absorbents for arsenate removal from contaminated drinking water. For the water with arsenate concentration at 51.14 ppm, more than 95% of arsenate was absorbed by composite GO-Fe-5 with an absorption capacity of 23.78 mg arsenate/g of composite. Effective arsenate removal occurred in a wide range of pH from 4 to 9. However, the efficiency of arsenate removal was decreased when pH was increased to higher than 8.


Assuntos
Arseniatos/isolamento & purificação , Carbono/química , Compostos Férricos/química , Poluentes Químicos da Água/isolamento & purificação , Abastecimento de Água/análise , Concentração de Íons de Hidrogênio , Microscopia Eletrônica de Varredura , Microscopia Eletrônica de Transmissão
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