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Tica Lab - electrified mosquito net

Openhardware electrified mosquito net to fight malaria (paludism)

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Malaria kills each year more than 400 000 people. Insecticide-treated nets had been really effective in decreasing the number of contamination, but mosquitos are developping a resistance against these chemicals.

Squitosplit is a mosquito net which detects if a mosquito has land on, and then shocks. The detection works with a capacitive technology.
The net is able to distinguish a human from a mosquito, avoiding shocking a human.

We are working with universities, NGO and companies to respond to local needs and to have feedbacks from experts.

We are unified in a non-profit. This project is openhardware/opensource.

If you want to play your part, contact us!



The mosquito net is made of aluminium yarns and aramid yarns (Kevlar)

  • 4S innovation contest

    Mattis EYNARD3 days ago 0 comments

    Le Crédit Mutuel, which is a french bank, has created a contest: 4S Innovation.

    We have participated to it: there were lots of workshop to work on and improve our project. The final was yesterday, and we are one of the four winners!


    We win a coaching by credit mutuel and 4000€ to develop our project, that is an awesome help to us, thank you very much Credit Mutuel!

  • A crowdfunding to support our project

    Mattis EYNARD09/15/2021 at 12:51 0 comments

    Yesterday we published our new website, today we lauch our crowdfunding campaign .

    If you want to support our project, this is the link to our Helloasso page: https://www.helloasso.com/associations/tica-lab

    Thanks in advance!

  • New website!

    Mattis EYNARD09/15/2021 at 12:45 0 comments

    Jeanne Lallemand, who studies industrial design at ENSCI Les Ateliers and manage the communication team of Tica, has just published our new website!
    Jeanne has done lots of drawings to make it nice to look at.

    You can visit it here: tica-lab.org

    We hope that you will enjoy it! 

  • Global Industrie at Lyon: looking for a manufacturer

    Mattis EYNARD09/08/2021 at 07:41 0 comments

    Yesterday we have been to the "Global Industrie" exhibition at Lyon to meet different manufacturers.

    We have already a small prototype of the net (which had been made in China), now we are looking for a company that can make larger net to make a prototype of the whole mosquito net.

    We finally found someone who said that he could make it, we will keep you in touch!

  • Test at Pasteur Institute

    Mattis EYNARD08/24/2021 at 07:58 0 comments

    During the month of July we have been to Pasteur Institute at Paris to test our net directly on mosquitoes.

    We aimed to find the "perfect" voltage and current to electrocute them.

    For this, we have made a box in plexiglas, with a window closed by our electrified net. We applied different couple voltage-current. Then, we drew the survivor curve.

    We are analysing the datas and writing a little article which will be published in open access.

  • Measuring capacitance with ESP32 board

    Mattis EYNARD07/08/2021 at 10:32 0 comments

    To measure the capacitance of a capacitor, we have decided to make a RC circuit (resistor – capacitor): first, we charge the capacitor, then, it discharges itself in the resistor.

    We take (you can change the values, it depends in fact of the range that you want, mine is for capacitors around 1µF)

    R = 1k = 103 ohm

    t =  10-3 s

    V0 = Vcc = 3.3V, corresponding at 4095 when read with AnalogRead() on Esp32, or 1023 on Arduino uno

    Test:

    It works!

    I have left the loop running 24 791 times, and calculate the average and the standard deviation with Excel.

    We find 935,7 nF, with a standard deviation of 2.99, which is quite good!  

    Using my multimeter, I find 962.5nF. The difference is probably due to the internal resistance and capacitance of the ESP32 board.      

    We have used an esp32 devboard as microcontroller, but you can use an Arduino board. The code would be the same.

    Be careful: Arduino uno has a 10-bit ADC (analogic digital converter), ESP32 a 12-bit ADC: so the values returned by Arduino would be comprised between 0 and 1023 (210 values) and ESP32 between 0 and 4095 (212 values).

    Use in our mosquito net :  

    Our net is a sort of capacitor, the human body is a capacitor too. In fact, any material behaves as a capacitor. When a human approaches, the capacitance of the global system is modified. We can detect this variation in order to stop applying electric shocks.

    We don’t need to really calculate the capacity, we will only analyze the voltage of the capacitor (using the same circuit), because the voltage after a time t is related to the capacitance.

    Avoiding complicated calculations permits to limit the use of energy and time resources.

  • Test at Centrale Lyon

    Mattis EYNARD07/07/2021 at 17:20 0 comments

    At Centrale, an engineering school, we wanted to see if we can detect when the human body approaches the net.

    For that, we used an impedance meter. We have clearly seen that this technology could work for this application.

    Now, we have to make a system which measure the impedance and an algorithm which interpret if a human approaches or not.

  • Net prototype

    Mattis EYNARD02/18/2021 at 10:23 0 comments


    Here is our first net-prototype (nylon and aluminium) to experiment directly  on mosquitoes

  • Meet Doctors without Borders at Paris

    Mattis EYNARD11/19/2020 at 17:39 0 comments

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aldolo wrote 04/14/2021 at 02:14 point

don't you the fear to be electrocuted? last year i used regular nets on all the windows and doors. no insects in sight.

  Are you sure? yes | no

Mattis EYNARD wrote 04/14/2021 at 07:05 point

Thank you for your comment!

We are developping systems to limit current, so there is no risk!

Regular nets work, but are not totally proof, so isn't sufficient to fight against malaria.

  Are you sure? yes | no

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