H2020Индивидуална стипендия2017–2019

PaCDoC · Electric field driven propulsion and collective dynamics of homogeneous and patchy colloidal capsules.

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-04-01 → 2019-03-31
Финансиране от ЕС: 134 462 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Колоидни капсули от маслени капки, покрити с микрочастици, се движат чрез електрическо поле. Това помага за разработването на наномашини за пренос на лекарства или почистване на токсични вещества от водата и човешкото тяло.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Electric field driven propulsion and collective dynamics of homogeneous and patchy colloidal capsules.

The research project studied capsules that were made by covering oil droplets with nano- and micrometer sized particles. The overall objective of the project was to achieve electric field-induced propulsion of homogenous (made out of same type of particles) and patchy capsules (capsules with domains of different chemical or physical properties) over millimeter distances, both in carrier fluids and at boundaries. Enabling capsule propulsion extend the capsules’ capabilities, applications and potential for performing multiple tasks. To realize, understand and control capsule propulsion is therefore highly desirable in fields such as biology, medicine, environmental science and material science. Benefits from capsule propulsion in these fields include: targeted drug delivery, cargo transport, forming nanomachines, removing toxic materials from water or human bodies, or actively controlling material behavior. Particle capsules, and especially patchy particle capsules are challenging to fabricate. To realize the potential applications of these capsules, it is also important to consistently produce capsules with tailored physical and mechanical properties. One of the objectives of this action was therefore to combine microfluidic devices and electric fields for high-throughput fabrication of patchy capsules. Realizing this objective was also necessary to study the collective dynamics of multiple propelling capsules which was the last objective of this research project. While single capsules can be used for encapsulation and controlled release for cargo transport, a larger number of capsules can additionally self-assemble into complex materials, form remarkable large-scale patterns and exhibit swarming behavior or coherent motion. Understanding and imitating these phenomena are helpful in many aspects, for example, for the control of rheological properties, diffusion of bacteria suspensions, to lower human infertility, as models for active complex systems and control of microbial infections.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Colloidal capsules are interesting from the point of view of both physics and application. They can be used for controlled material transport and targeted release, and they have shown tremendous potential for fabricating advanced materials through self-assembly. Recently, such capsules have also been able to propel in carrier fluid by methods including magnetic fields, thermal gradients and bubble propulsion mechanisms. Building on former research by the Experienced Researcher and the main supervisor, as well as new areas of expertise, this project will develop novel fabrication routes for microcapsules with and without functionalised shells (patchy capsules) and propel them over milimeter distances using external fields. The main objective of this action is to experimentally demonstrate propulsion of microcapsules via novel methods involving anisotropic electrodeformation and electrorotation. The experimental research will fill the missing gap in the field of propelling capsules, now mostly presented by computational and theoretical work. There are many examples of collective phenomena in nature, ranging from swarming bacteria colonies to flocking animals, and much attention has been devoted to understanding and imitating their collective properties and behaviour. The research project will give the first experimental realisation of collective capsule dynamics by propelling hundreds of electrorotating capsules at boundaries. Such a system has enormous potential for future technology and will be helpful in many aspects, for example, to lower human infertility, design microrobots for drug delivery, biodegradation of environmental pollutants and control of material properties. This proposal includes both the training of the candidate and a two-way transfer of knowledge with the host institution and partner organisations. The interdisciplinary aspect of the action is strong, involving a combination of soft-matter physics, medicine, engineering and applied sciences.

Оригинален текст от CORDIS (на английски).

Участници

UNIWERSYTET IM. ADAMA MICKIEWICZA WPOZNANIU · PoznanКоординаторПолша