Résumé
Graphene, as a new two-dimensional nanomaterial, is isolated and prepared for various industries application, which has become a hot research topic at present. It is also used in biomedicine for drug carriers, biological detection, cancer treatment, and tissue engineering. Graphene and its derivatives have great potential in the application of wound dressings attributed to the unique and good properties, including self-antibacterial property and antibacterial property in combination with different substances, excellent mechanical property, biocompatibility, etc. This article reviews the research of graphene and its derivatives in wound dressings.
Résumé
In this paper,a portable chemical oxygen generator was discribed. It mainly consists of oxygen-generating bag and oxygen-generating pow- der.The oxygen-generating bag is made of PVC plastic film,and the oxygen-generating powder is sodium carbonate peroxide.This oxygen ge- nerator can be used to produce oxygen gas for human respiration.and is particularly applicable to first aid for emergency patients,home treatm- ent for respiratory patients and oxygen supply in field hospitals or in clinics in rural and remote areas.