H2020Individual fellowship2019–2021

SHINEShift · Shape-shifting of vesicles induced by artificial tubular networks

Horizon 2020 — Marie Skłodowska-Curie Actions

Duration
2019-07-01 → 2021-06-30
EU contribution
€187,572
Participants
1
Scheme
MSCA-IF-EF-ST

Lines connect the coordinator with its partners.

Results in brief

Shape-shifting of vesicles induced by artificial tubular networks

Starting from the smallest unit of life, the cell, living systems are in constant motion. Cells migrate, divide and differentiate, supported by sophisticated supramolecular machinery, cellular cytoskeleton. In contrast, most artificial supramolecular systems are static. Vesicles are static structures consisting of a lipid bilayer surrounding a fluid. Yet, they are used as the most common artificial models of cell membranes, which are on the contrary dynamic, fluid structures. The SHINEShift project sought to transform vesicles into dynamic structures capable of resisting mechanical stress by employing a photo-responsive synthetic supramolecular tubules as an artificial cytoskeleton inside vesicles. In line with the overall aim, the objectives of the project were to: (i) design and synthesize organic molecules based on cyclic peptides bearing photo-responsive groups, (ii) characterize these molecules and investigate their ability to form tubular structures in a solution, (iii) encapsulate these compounds inside vesicles and (iv) observe their behavior under the influence of light. In parallel with the scientific objectives, the goal of the MSCA project was to promote the scientific training and overall career development of the Fellow in order to support her in becoming a prominent independent researcher. Despite the unforeseen difficulties resulting from the COVID-19 lockdown and the restrictions thereafter, the project provided many important scientific results, which were presented at international conferences and public lectures, and which will be published in scientific journals in the coming period. At the same time SHINEShift had a tremendous positive effect on the Fellow’s career development and personal scientific growth. The Fellow notably developed her transferable skills through everyday transfer of knowledge within the group, as well as through several courses, seminars and lectures. In parallel, this cutting edge interdisciplinary project widened her experience in the fields of self-assembly, supramolecular chemistry and dynamic biomimetic materials.

Data: CORDIS, © European Union

Project objective

The most commonly used artificial cell membrane models are vesicles. However, these static structures, consisting of a lipid bilayer surrounding a fluid, are poor in resisting mechanical stress. Enhancing their mechanical properties with a dynamic artificial cytoskeleton will both allow stabilizing their shape and transforming these passive objects into dynamic stimuli-responsive systems. In this MSCA project photo-responsive synthetic supramolecular tubules will be used as an artificial cytoskeleton inside vesicles. My aim is to develop stiff and at the same time responsive tubules based on cyclic peptide design that can grow and generate pushing forces during the fueling step, and disassemble when the fuel stops, both in a fully reversible manner. This cutting edge interdisciplinary project brings together several disciplines in chemistry, i.e. organic synthesis and supramolecular chemistry with colloidal chemistry (and/or microfluidics), and its scientific impact will spread through various fields – from supramolecular chemistry to material science (leap from static vesicles to dynamic ones), and synthetic biology (relevance for future applications in the field of artificial cells). My expertise as experienced researcher in the field of organic synthesis will be applied to the field of dynamic supramolecular systems based on photo-switchable compounds in which the host (Dr. Kudernac) has made notable recent progress. During this training-through-research project I will be able to learn the preparation processes for the vesicles and microscopy techniques that are fundamental for investigating (dynamic) supramolecular assemblies and which will further expand my horizontal skills. In addition, training activities during this fellowship will strongly enhance my leadership and transferable skills. Hence, the Fellowship will allow me to become a distinctive researcher in a highly competitive scientific environment.

Original text from CORDIS.

Participants

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Data: CORDIS, © European Union