A prototype for a double cap for secure water sample collection with a confined bioreporter.
AIM :
• Assuring secure samples collection in the field
• Keeping the GMO reporter bacteria from being released into the environment
• No extra wastes produced
IDEA :
• A double cap to connect the water sample one side and the bioreporter on the other side
• An aluminum seal coverts the bioreporter vial to prevent GMO outflow
• The seal is pierced by a connector between the two caps after starting screwing
WORKFLOW OF THE DOUBLE CAP :
- The bioreporter is prepared in the lab and the vial is sealed. Then the vial is closed by a cap for the transport.
- Water is collected with a second vial
- The double cap is screwed on the water collection vial (side without connector)
- After removing the cap, the bioreporter vial is screwed to the other side (with connector)
- The two substances are mixed, the two vials stays fixed one with the other by the double cap
- The GMO are returned to the lab to be destroyed
(see the picture "Worklow - DoubleCap.png" on this folder)
MATERIAL NEEDED :
• 3D printer (one head is sufficient)
• PLA or ABS filaments (both have been tested for this piece and worked) at least 0.7m long
• File .stl of the whole double cap
OTHER POSSIBILITY :
If you already have two perforated caps, you can also 3D-print the connector part, which allows to pierce the aluminium and the contact between the two samples.
After printing the connector, you just have to glue it with a hermetic and waterproof glue between the two cap.
Two files .stl are available for this connector : one for a thickness of 0.5mm and the other one for 1mm.