Objective
In the last decade, the rapidly developing optical imaging field has significantly improved our understanding of information processing in the brain. Although a number of promising tools have been designed, sensors of membrane potential are lagging behind. In this project we aim to characterize an innovative voltage sensor for neurons that is fundamentally different from the existing ones. Our sensor is based on targetable voltage-sensing semi-conductor nanorods (vsNRs) that self-insert into the neuronal membrane. The rods optically and non-invasively record action potentials at the single particle level, at multiple sites, and across a large field-of-view. Such vsNRs offer unique advantages, including: (1) large voltage sensitivity, (2) ratiometric imaging based on a large spectral shift as function of voltage, (3) very fast response times in the range of ns, (4) very high brightness that affords single-particle detection, and (5) excellent performance in the near-infrared spectral range.
The goal of this project is to validate, calibrate, and use vsNRs in neurons, focusing on dendritic spines and dendritic voltage spikes. After initial characterization of vsNRs in neurons, we will take advantage of the exceptional spatial and temporal resolution provided by vsNRs in order to access electrical properties of individual dendritic spines, as well as to make use of the red-shifted emission of vsNRs in order to record simultaneously membrane potential and calcium fluctuations at dendritic branch points.
The project is to be accomplished in the laboratory of Dr. Antoine Triller at the IBENS, Paris by Dr. Anastasia Ludwig, who has extensive experience in molecular neurobiology, including analysis of dendritic spine morphology and dynamics.
Based on our preliminary data, we are certain to be able to provide within two years a viable and user-friendly voltage-imaging technology that will be widely applicable for the study of signal integration in the brain.
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 inorganic chemistry alkaline earth metals
- natural sciences physical sciences optics microscopy super resolution microscopy
- natural sciences biological sciences biochemistry biomolecules proteins
- natural sciences computer and information sciences data science data processing
- natural sciences biological sciences molecular biology molecular neuroscience
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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.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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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.
MSCA-IF-EF-ST - Standard EF
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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) H2020-MSCA-IF-2016
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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.
75654 PARIS
France
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.