Job Information
- Organisation/Company
- Université Paris Cité, ITODYS Laboratory
- Department
- Chemistry, ITODYS Laboratory
- Research Field
- Chemistry » Molecular chemistryChemistry » Physical chemistry
- Researcher Profile
- First Stage Researcher (R1)
- Country
- France
- Application Deadline
- Type of Contract
- Temporary
- Job Status
- Full-time
- Offer Starting Date
- Is the job funded through the EU Research Framework Programme?
- Not funded by an EU programme
- Is the Job related to staff position within a Research Infrastructure?
- No
Offer Description
PhD position in Paris, Laboratory ITODYS, BiOSS team (Bioelectronics and Smart Surfaces).
Open in Oct. 2024.
Monitoring biomarkers such as virus, biomolecules or hormones produced by the endocrine system holds paramount significance. Hormones, along with other biomarkers, serve as pivotal indicators of the body's physiological processes and functions. Even though optical transduction is nowadays the main detection modes used in biosensors, their replacement by electrochemical transduction would offer noteworthy advantages such as the possibility to operate in nontransparent or colored reaction mixtures and to directly produce an electronic signal that can be automatically treated and sent to the user. The PhD project aims to develop a generic printed biosensor for low cost, highly sensitive and quantitative hormones monitoring. To this end, a highly selective enzyme-linked aptamer assay (ELAA) will be combined to an Organic ElectroChemical Transistor (OECT) transducer functionalized with a new generation of hybrid electrocatalyst. Organic ElectroChemical Transistor (OECT) devices are promising according to their ability to amplify interfacial events occurring onto the channel or gate electrodes.
The objective of this PhD project is to modify the OECT gate with an H2O2 ultrasensitive nanostructured interface, a key element of the final printed biosensor.
Highly selective nanocatalysts (nanozymes) for H2O2 oxidation encompassing a metal core and H2O2-responsive supramolecular shell will be synthesized and characterized by several physico-chemical techniques available in the laboratory (NMR, GC-MS, IR, electrochemistry, STM, AFM, XPS, SEM-EDX). The formulation and the printing of H2O2-sensitive nanozymes inks onto the gate electrodes will be optimized in order to obtain a highly active nanostructured interface. Finally, the fabrication of coplanar OECT biosensor on flexible substrate encompassing the smart H2O2 nanozyme will be performed by printing techniques within the PrintUp platform (https://printupinstitute.fr/en/research-development/) led by the BiOSS team. The performance of the modified OECT will be assessed as a function of both the architecture and the nanocatalysis triggered by H2O2.
This project will integrate supramolecular and molecular synthesis, electrochemistry, surface functionalization and printing fabrication techniques (namely inkjet-printing).
Location/supervision: The thesis will be conducted within the ITODYS Laboratory in Université Paris Cité. The PhD project will be co-supervised by Prof Benoît Piro and Dr Samia Zrig
Requirements
- Research Field
- Chemistry » Molecular chemistry
- Education Level
- Master Degree or equivalent
- Research Field
- Chemistry » Physical chemistry
- Education Level
- Master Degree or equivalent
Profile: The PhD candidate with a Master’s degree in Chemistry should be a highly motivated student with a solid background in organic synthesis and supramolecular chemistry. The candidate should also have knowledge in molecular electrochemistry and/or spectroscopy.
Team-working abilities, organization and good communication and writing in English are required
How to apply? The applicant will send an email to Dr Samia Zrig (samia.zrig@u-paris.fr) and attach a CV, a short (max 2 pages) research summary about previous experiences/internships (if any), a motivation letter and the contact of 2 references he/she worked with.
- Languages
- ENGLISH
- Level
- Excellent
Additional Information
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- Université Paris Cité, ITODYS Laboratory
- Country
- France
- City
- Paris
- Postal Code
- 75013
- Street
- 15 rue Jean Antoine de Baïf
- Geofield
Where to apply
- samia.zrig@u-paris.fr
Contact
- Website
- samia.zrig@u-paris.frpiro@u-paris.fr