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Revision as of 00:40, 22 October 2019
Education
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Entrepreneurship
We want to create new standards for medical diagnostics by becoming major actors in the field of health, in order to bring down the empirical antibiotic treatment era.
Play full video
Our Work
The birth of DIANE was possible thanks to a motivated, close-knit and dynamic team of 10 hardworking students from different fields of study (i.e law (Paris Sud), biology (Sup ‘Biotech), chemistry (Chimie ParisTech, ENS Cachan), and physics (ESPCI)).
Our main asset was the diversity of knowledge distributed amongst the team members: but we’re only students, and as such, we lack expertise. Thus, we have involved experts from diverse fields to help us build our project : Ms. Sylvie Renard Dubois, Dr Marcel Hollenstein, Dr Lebeaux, Dr Clauteaux, Ms. Couture and others, in order to learn from their experience and listen carefully to their advices. Our project relies on a strong bond between all the members of our team, and on mutual support. We have organized our working time by making sure we could all fully understand every aspect of the project, by reporting back to others during bi-weekly meetings. Those meetings helped us develop autonomous behaviors, by including the opinions of others on all the subjects.
Moreover, we have worked with short iterations, and by creating numerous milestones along the way. This working method, called Agile method (learn start up method) helped us minimize the risk of failure by involving as much customers and experts in our domain, to help us find solutions and answers to hypotheses we claimed, and ensure that we can get maximum reactivity on any oncoming problem. We kept in touch with reality by making little steps forward every day. We wanted to make sure that we would create a product that would stand up to the expectations of our market. In order to enforce this method in our team, at the end of each development phase, we have reviewed our strengths and weaknesses and made sure that we would get better at each new phase. This working mindset has helped us consolidate our project, by compensating our flaws with new solutions.
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Agile Methode : based on the Manifeste Agile written in 2001, this method is used for project development and relies on 4 fundamental values : individuals and interactions, working software, customer relationship, resilience.
Context
Sepsis is a major cause of death in the world, which consists in a widespread infection of the circulatory system or the severe infection of an organ. Today, sepsis affects more than 30 million people each year in the world. It causes 1 death every 5 seconds, and more than 60% of the people over the age of 65 are affected by organ failure after contracting sepsis, often leading to death or lifelong consequences.
Unfortunately, today, the only available treatments to fight bacterial infections are antibiotics. But with the recent progress of antibioresistance and the appearance of multi resistant bacteria, those treatments are becoming less effective for sepsis. Each year, more than 700 000 people die from resistant bacteria, and this number is not going to drop down any time soon, as in 2050, more than 10 million deaths will be caused by this disease. Thus, doctors now widely use large spectra antibiotics, which are less specific and more effective but more costly, and are our last weapon against the strongest of bacteria. This leads to the rise of new resistances, and puts at risk the sustainability of our treatments as well as to the prolongation of hospital stays for patient due to the lack of good diagnosis or good treatment.
The use of reserve antibiotics comes from the lack of effective diagnostics in order to identify the strain and the resistances of the bacteria causing the sepsis. Furthermore, actual methods require more than 24 hours of analysis before yielding results, or require specialists in order to use cutting-edge technologies like mass spectrometry of PCR. Therefore, it is crucial that we develop new rapid diagnostics methods to help doctors adapt the antibiotic treatment to the strain and the resistances of the bacteria, thus preserving our reserve antibiotics, while waiting for new treatments like gene therapies or phage therapies.
Our Business
DIANE has the ambition to become the next generation of rapid diagnosis device for the detection of infection-inducing pathogens in both bedside medicine and humanitarian context.
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We have elaborated a new rapid diagnostic method, used to precisely identify the strain causing an infection as well as to follow the status of the infection by measuring the concentration of bacteria in the sample. This will allow for the determination of the efficiency of the treatment given to the patient, and adapt it if need be.
Our method relies on the electrochemical detection of bacteria, using carbon nanotube electrodes functionalized with aptamers. Aptamers are single-strand DNA or RNA sequences, allowing for the identification of specific targets through binding properties. In presence of bacteria, aptamers will change their conformational structure, thus modifying the close environment of the electrode and enabling us to detect a potential difference. This signal is linear with the logarithm of the concentration of the bacteria, and this equilibrium between the two conformational structures of the aptamers only takes a minute to establish. We have integrated this technology in a new portable diagnosis device, usable in both laboratories by research, doctors or practicians, or even in harsh environment like in a humanitarian context.
A refined design and advanced features allow for a very simple use by any caregiver or doctor, without any expertise in synthetic biology. For example, an automated measurement and washing system will allow the physician to focus on the patient after inserting the biological sample into the machine. After only a few minutes, the result will be available and will allow the doctor to make an effective diagnosis and treat the patient with the appropriate antibiotic for the detected strain.