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Variable stiffness for robotics is attracting increasing attention from researchers in the field of surgical robots. A surgical robot that can access the human colon or stomach via natural orifices must be flexible enough to pass through tortuous paths and to work in a confined space. Meanwhile, the robot must also be stiff enough to ensure pushability and to hold high payloads during the surgery...
10 kinds of common metal ions with concentration range from 1g/L to 3g/L were selected for investigating the effect of metal ions on degradation of fuchsine acid by laccase. The results showed that the degradation was promoted through the addition of Cu2+, Ca2+, Mn2+, Mg2+, Na+ and K+ with concentration range from 1g/L to 3g/L, while it was inhibited with Fe3+, Cr3+, Co2+ and Ni2+ with concentration...
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