RESEARCHER PROFILE: PhD / R1: First stage Researcher
RESEARCH FIELD(S)1: Engineering
MAIN SUB RESEARCH FIELD OR DISCIPLINES1: Engineering
JOB /OFFER DESCRIPTION
The intensive use of plastic materials has given rise to an alarming pollution linked to the presence of micro- and nanoplastics. The latter have dimensions of less than 1 µm, making them an even greater threat to biodiversity and human health. While current analysis methods are limited to particles larger than 5 µm, the detection of nanoplastics remains a major challenge.
This PhD project aims to break new ground in the quantitative detection of nanoplastics by exploiting time-resolved ultraviolet (UV) autofluorescence. Plastics emit intrinsic autofluorescence when illuminated in the UV, providing superior sensitivity to current Raman and infrared spectroscopies. The central objective is to improve detection sensitivity thanks to this autofluorescence property, targeting particles as small as 30 nm in diameter. A further original feature is the ability to differentiate between types of plastic by exploiting their autofluorescence lifetime.
Developing this approach requires the development of suitable characterization methods, as well as a deeper understanding of the UV photophysics of nanoplastics. The project aims to fill this gap by exploiting joint developments in spectroscopy, nanophotonics and the synthesis of calibrated plastic nanoparticles. The project builds on our recent progress and preliminary results.
This novel UV approach promises enhanced sensitivity, the ability to detect nanoscale particles, and a direct, label-free application ideal for in situ scenarios. The project will open up new perspectives for the detection of nanoplastics, helping to better understand and quantify this invisible pollution.
The Institut Fresnel is a research state laboratory based in Marseille / France, devoted to research and higher education with affiliation to both CNRS and Aix Marseille University. Institut Fresnel is seeking to recruit talented, enthusiastic young scientists who are highly motivated to boost their research career in the areas of nanosciences, biosensing, and nano/biotechnologies. Jerome Wenger’s group has acquired a wide expertise in the nanoscale control of light fields in plasmonic nanostructures and its application to enhance fluorescence spectroscopy applications.
The PhD fellowship is offered for a period of three years. Extensions will be possible based on context and performance. A PhD degree from Aix Marseille Université will be granted after successful completion of the PhD research.
TYPE OF CONTRACT: TEMPORARY / JOB STATUS: FULL TIME / HOURS PER WEEK: 38
APPLICATION DEADLINE: 30/04/2025 & TIME 00:00
ENVISAGED STARTING DATE: 01/11/2025
ENVISAGED DURATION: 36 months
WORK LOCATION(S): Institut Fresnel, faculté des sciences de St Jerome, 52 avenue Escadrille Normandie Niémen, 13013 Marseille, FRANCE
WHAT WE OFFER:
- Close supervision by an internationally recognized expert in the field of nanophotonic and single molecule fluorescence techniques.
- Access to state-of-the-art equipment and technology, allowing to perform cutting-edge research and stay at the forefront of the field.
- The opportunity to work on groundbreaking research projects that have the potential to make a significant impact in the field of nanophotonic.
- Attendance at weekly seminars and opportunities to present at major international conferences, giving a platform to showcase their research and make valuable connections.
- Personal and professional development training, including leadership and communication skills to prepare for a successful career in academia or industry.
- The opportunity to contribute to the advancement of knowledge in the field and make a meaningful impact on the world through their research.
Additional information: The Euraxess Center of Aix-Marseille Université informs foreign visiting professors, researchers, postdoc and PhD candidates about the administrative steps to be undertaken prior to arrival at AMU and the various practical formalities to be completed once in France: visas and entry requirements, insurance, help finding accommodation, support in opening a bank account, etc. More information on AMU EURAXESS Portal
QUALIFICATIONS, REQUIRED RESEARCH FIELDS, REQUIRED EDUCATION LEVEL, PROFESSIONAL SKILLS, OTHER RESEARCH REQUIREMENTS
To apply for a PhD fellowship, candidates must hold or be in the final stages of completing an internationally-recognized Master-equivalent degree in physics, chemistry or engineering. Experience in experimental and/or theoretical research on nano-optics and/or biophotonics will be highly appreciated, but is not mandatory.
No restrictions of citizenship apply to the PhD position.
Soft skills: Strong motivation for optics, curiosity for nanoscience, English for science, autonomy, analytical and critical thinking, writing skills, presentation skills
REQUESTED DOCUMENTS OF APPLICATION, ELIGIBILITY CRITERIA, SELECTION PROCESS
Suitable candidates are requested to submit:
- a Curriculum Vitae
- a presentation letter with declaration of interests and a description of your past achievements (max. 1 page)
- contact email of two potential references
- a scanned copy of your university academic transcripts in English
- a scanned copy of the Master degree, if available at the time of application
- a scanned copy of standardized English test results (TOEFL, TOEIC…) if available
HOW TO APPLY: Jerome.wenger@fresnel.fr
