Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
The ink lable have optimized
the traditional way of illustrating the valid time of some drugs.Using the principle of invisible ink.Through controlling the balance of acid and NaOH to cater the drugs that have different valid times.Meanwhile ,it can make the colour disappear in a period of fixed time.Making the users observe the valid time of drugs more directly.
shanghai normal university