[Application of electric coagulation treatment via bronchoscopy in the management of congenital vallecular cyst in children].

Objective: To discuss the effect of electric coagulation through bronchoscopy in diagnosis and treatment of congenital vallecular cyst in children.

Method: Ten cases of congenital vallecular cyst in the study with age ranged from 21 days to 4 years and 10 months were treated with electric coagulation through bronchoscopy. The therapeutic effect was evaluated by endoscopic and clinical manifestation.

Research on the structure and performance of bacterial magnetic nanoparticles.

Magnetite nanocrystals have been widely used in many fields. Recently, a new magnetite nanocrystals, called magnetosome, has been found in magnetotactic bacteria. In this article, we researched on the properties of magnetosomes in detail, such as crystalline, morphology, crystal-size distributions, vitro cytotoxicity, and magnetic properties and quantified primary amino groups on the magnetosomes membrane surface by fluorescamine assay for the first time.