Team:HSiTAIWAN/Product

　

  • Product

    • Framework
    • Design of Biosensor Function
    • Design of Biosafety
    • User Guide
    • 　　 　　

    Product

    Framework

    We designed an E.coli biosensor to detect the poison in the Chinese Medicine. When E.coli detects the poison, the device will show fluorescence to quickly warn the user of the existence of poison in Chinese medicine. Our product fulfills most of the requirements and the standards that the government set for detecting toxins/heavy metals in Chinese Medicine. We also innovated design for eco-friendly biosafety guarantee.

    Figure 1 Product of Shen-Nong Biosensor

    　　

    Design of Biosensor Function

    Our device can detect four kinds of toxins, copper, lead, arsenic, and aflatoxin. The contents of these four toxins in Chinese Medicines are limited by FDA. If there’s any of those toxins are detected in the Chinese Medicine, the E.coli will perform fluorescence, so the user can see the result only by watching the fluorescence.

    Figure 1 Product of Shen-Nong Biosensor

    * Herb Safe / Hibiscus: To inhibit the growth of E. coli when leakage from the device.

    * Latch: To lock the plate in the device, so user can’t take them out again.

    * Filter: To remove the impurities in the Chinese Medicine

    * Sodium Percarbonate: To clean all E.coli

    　　

    1-3 Design of Biosafety

    For the safety concern, we innovated a three-step bio-safety guarantee. First, we designed a latch that can lock the E. coli inside the plate when they are loaded. Second, we designed a way, which is no harm to the environment, to prevent the leakage of E.coli from the device, inside of which the inner layer is covered by hibiscus. Hibiscus is a special plant which has great function of bacteria sterilization. We also conducted experiments to verify hibiscus's function of bacteria sterilization.(Figure 2) Third, after use of this device, the user presses a button to inflow sodium percarbonate to the bacteria plate. The interaction of soidum percarbonate with any organic compounds (E. coli in our case) produces hydrogen peroxide, which diffuse into the plate and kill all E.coli. These three steps secure the users safety of use.

    　　

    1-4 User Guide

    1-4text

    Figure 3 User Guide of Shen-Non Biosensor