Liens entre formulation et stabilité d'émulsions étudiés par microfluidique // Links between formulation and stability of emulsions studied with microfluidics
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ABG-136843
ADUM-70889 |
Thesis topic | |
| 2026-03-18 | Public funding alone (i.e. government, region, European, international organization research grant) |
ESPCI Ecole supérieure de physique et de chimie industrielles de la ville de Paris (PSL)
Paris - Ile-de-France - France
Liens entre formulation et stabilité d'émulsions étudiés par microfluidique // Links between formulation and stability of emulsions studied with microfluidics
- Chemistry
Formulation, microfluidique, émulsion, molécules amphiphiles, surfactant bio-sourcé, coalescence
Formulation, microfluidics, emulsion, amphiphilic molecules, bio-based surfactant, coalescence
Formulation, microfluidics, emulsion, amphiphilic molecules, bio-based surfactant, coalescence
Topic description
Les émulsions, un mélange hétérogène de deux liquides non miscibles sous forme de gouttelettes dispersées dans une phase continue contenant des tensioactifs, sont des matériaux utilisés dans de nombreux domaines industriels. Un des enjeux actuels est de formuler des émulsions avec des matériaux bio-sourcés de façon efficace. L'objectif principal de ce projet de thèse est de mettre en place une méthodologie et des systèmes microfluidiques dédiés afin d'étudier la stabilité d'émulsions modèles en fonction de leur formulation en vue d'établir un lien entre structure des molécules amphiphiles et fonction stabilisante tout en découplant l'étape d'émulsification de celle de déstabilisation. La méthodologie sera développée avec des tensioactifs synthétiques et issus de la biomasse dont la structure est connue, mais une exploration avec des molécules amphiphiles produites par des microorganismes est envisagée.
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Emulsions, a heterogeneous mixture of two immiscible liquids in the form of droplets dispersed in a continuous phase containing surfactants, are materials used in many industrial fields. One of the current challenges is to efficiently formulate emulsions with bio-based materials. The main objective of this thesis project is to establish a methodology and dedicated microfluidic systems to study the stability of model emulsions as a function of their formulation, with the aim of establishing a link between the structure of amphiphilic molecules and their stabilizing function, while decoupling the emulsification step from the destabilization step. The methodology will be developed using synthetic and biomass-derived surfactants with known structures, but exploration with amphiphilic molecules produced by microorganisms is also planned.
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Début de la thèse : 01/10/2026
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Emulsions, a heterogeneous mixture of two immiscible liquids in the form of droplets dispersed in a continuous phase containing surfactants, are materials used in many industrial fields. One of the current challenges is to efficiently formulate emulsions with bio-based materials. The main objective of this thesis project is to establish a methodology and dedicated microfluidic systems to study the stability of model emulsions as a function of their formulation, with the aim of establishing a link between the structure of amphiphilic molecules and their stabilizing function, while decoupling the emulsification step from the destabilization step. The methodology will be developed using synthetic and biomass-derived surfactants with known structures, but exploration with amphiphilic molecules produced by microorganisms is also planned.
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Début de la thèse : 01/10/2026
Funding category
Public funding alone (i.e. government, region, European, international organization research grant)
Funding further details
Concours pour un contrat doctoral - PSL
Presentation of host institution and host laboratory
ESPCI Ecole supérieure de physique et de chimie industrielles de la ville de Paris (PSL)
Institution awarding doctoral degree
ESPCI Ecole supérieure de physique et de chimie industrielles de la ville de Paris (PSL)
Graduate school
388 Chimie Physique & Chimie Analytique de Paris-Centre
Candidate's profile
Nous recherchons un/e candidat/e ayant un fort intérêt et des connaissances en formulation, physico-chimie de la matière molle et plus particulièrement des émulsions, en mécanique des fluides et si possible ayant un savoir-faire en microfabrication. Mis à part une réelle motivation pour mener à bien des expériences en physicochimie, mariant formulation et mesures physiques, pour apprendre de nouvelles techniques de mesure ou bien de microfabrication, une aptitude à analyser et à rationaliser les phénomènes mis en jeu à partir de modèles mathématiques simplifiés est un atout.
We are looking for a candidate with a strong interest in and knowledge of formulation, the physical chemistry of soft matter, particularly emulsions, and fluid mechanics, and ideally with experience in microfabrication. Beyond a genuine motivation to conduct experiments in physical chemistry, combining formulation and physical measurements, and to learn new measurement or microfabrication techniques, an aptitude, or at least a willingness, to analyze and rationalize the phenomena involved using simplified mathematical models is an asset.
We are looking for a candidate with a strong interest in and knowledge of formulation, the physical chemistry of soft matter, particularly emulsions, and fluid mechanics, and ideally with experience in microfabrication. Beyond a genuine motivation to conduct experiments in physical chemistry, combining formulation and physical measurements, and to learn new measurement or microfabrication techniques, an aptitude, or at least a willingness, to analyze and rationalize the phenomena involved using simplified mathematical models is an asset.
2026-05-11
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