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An optofluidic platform based on liquid-gradient refractive index microlens for the isolation and quantification of extracellular vesicles

Project description

A novel platform for extracellular vesicle isolation

Extracellular vesicles (EVs) represent an important communication pathway between cells and deliver various molecules, such as proteins, lipids and RNA. EVs are increasingly being recognised as promising disease biomarkers, but their characterisation and purification from biological samples is challenging and time-consuming. The key objective of the EU-funded MNSWLGM project is to develop an optofluidic platform with a size selection criterion for EV identification, sorting and fractionation. The platform is expected to overcome current technological limitations in EV research and pave the way for the utilisation of EVs in clinical diagnosis.

Objective

Extracellular vesicles (EVs) describe distinct populations of small (30-200 nm) and large (500 nm-2 μm)
microvesicles actively or passively secreted by cells. Whilst, they are recognized as promising biomarkers for
diseases diagnosis, prognosis and therapy, their purification, selective enrichment, and characterization remains
immensely challenging. The goal of the current proposal is to develop an optofluidic platform able to
manipulate and characterize single EVs and facilitate their efficient purification and quantitation from
biological samples. The optofluidic platform will incorporate a dynamically reconfigurable optical lattice
(constructed from a liquid gradient refractive index - L-GRIN microlens) for separation followed by a viscoelastic
focusing module for single EV imaging. The strength of the interaction between a nanoparticle and the optical
lattice will depend on the optical polarizability of the particle, thus providing a size selection criterion to allow
identification and isolation. Put simply, we aim to develop a size-selective optofluidic platform integrated for
non-invasive EVs sorting and fractionation that can be applied to a wide range of biological matrices and
addresses the most challenging technological bottleneck in EVs research.

Fields of science (EuroSciVoc)

Programme(s)

Topic(s)

Funding Scheme

MSCA-IF-EF-ST - Standard EF

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Call for proposal

(opens in new window) H2020-MSCA-IF-2017

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Coordinator

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
Net EU contribution
€ 187 419,60
Address
Raemistrasse 101
8092 Zuerich
Switzerland
Region
Schweiz/Suisse/Svizzera Zürich Zürich
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 187 419,60