Project description
Optical tweezers pick up on the drying properties of particle–polymer–solvent mixtures
Many processes such as coating and ink-jet printing rely on particles dispersed in a solution and deposited onto a substrate. As the solution dries, undesirable effects can be produced much as dried coffee leaves a ringed stain. Scientists recently discovered that this ring-shaped deposit can be eliminated by coating the dispersed particles with surface-active polymers. With the support of the Marie Skłodowska-Curie Actions programme, the CoffeeRings project will investigate the mechanisms of the drying process with single-particle resolution using optical tweezers. The team will characterise the physiochemical properties of the polymer coating, its effect on the interactions of the particles and the drying behaviour of the particle dispersion.
Objective
"After spilling coffee, a tell-tale circular stain is left by the drying droplet. This universal phenomenon, known as the coffee ring effect, is observed independent of the dispersed material. However, for many technological processes (e.g. coating and ink-jet printing) a uniform particle deposition is required and the coffee ring effect is a major drawback. In preliminary work, I found that the coffee ring effect can be avoided by coating the dispersed particles with surface-active polymers, which leads to a homogeneous particle film independent of the dispersed material type, shape and liquid.
The aim of the project ""CoffeeRings"" is to provide a fundamental understanding on how the physio-chemical properties of the polymer coating affect the interactions of the particles and the drying behavior of the respective particle dispersion.
I will receive hands-on training on optical tweezers by the hosting group to fundamentally determine and systematically quantify the changes induced by the polymer coating throughout all stages of the drying process with single-particle resolution. In WP1, I will synthesize a series of model particles with a defined polymer coating and adjust polymer type, grafting density and chain length. In WP2, I will use optical tweezers to measure their interaction potential in bulk liquid, their adsorption rate to liquid interfaces, and their interaction potential when confined at liquid interfaces, which will mimic the involved interactions within drying dispersion droplets. In WP3, I will investigate the drying behavior of the particle dispersions and combine the macroscopic drying manifestations with the microscopic interactions determined in WP2.
The successful realization of this project will improve the compositions of particlepolymersolvent mixtures to obtain reliable, homogeneous deposits, which will stimulate technological advances coating and ink-jet printing processes.
"
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences polymer sciences
- engineering and technology materials engineering coating and films
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
-
HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
See all projects funded under this programme
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
See all projects funded under this funding scheme
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2021-PF-01
See all projects funded under this callCoordinator
Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
405 30 Goeteborg
Sweden
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.