Carbon nanotubes, their uses and health risks

The study analyzes the published literature data on key properties of one of the most important nanomaterials,carbon nanotubes. This material has a wide range of applications for biological and medical use. Among them there are visualization of molecular, cellular and tissue structures; construction of biosensors and electrodes; targeted delivery of various substances; and the use in radiation and photothermal therapies. It was demonstrated that depending on the route of administration and the dose, body carbon nanotubes are can be harmful to human body. At the same time, increasing use of this material suggests that further research of its characteristics and their impact on human health is needed.

A Welding Method for Carbon Nanotubes to Metal

A simple ultrasonic welding method was employed to bond the carbon nanotubes and metal electrodes, at the same time, macro-body carbon nanotubes was tried in the experimental. By the welding head exert suitable pressure on carbon nanotubes bridge on electrodes with frequency of 60 kHz and power of 1.8w, contact would be achieved between these, moreover, the image of SEM show that the bonding was tightly.