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Control and measurement of single macromolecules in space and time

Objective

The desire to “freely suspend the constituents of matter” in order to study their behaviour can be traced back over 200 years to Lichtenberg’s diaries. From radio-frequency ion traps to optical tweezing of colloidal particles, existing methods to trap matter in free space or solution rely on the use of external fields that often strongly perturb the integrity of a macromolecule in solution. Recently, I invented the ‘electrostatic fluidic trap’, a “field-free” principle that supports stable, non-destructive confinement of single macromolecules in room temperature fluids, representing a paradigm shift in a nearly century-old field. The spatio-temporal dynamics of a single electrostatically trapped molecule reveals fundamental information on its properties, e.g. size and electrical charge. The charge of a macromolecule is in turn a strong function of its 3D conformation - the molecular basis of biological function. I now aim to develop a new platform to study 3D macromolecular structure and temporal conformation by measuring the electrical charge of a single trapped molecule in real time, using both optical microscopy and electrical detection. Beyond the conformational dynamics of a single molecule, we will also examine interactions between two or more molecules, and the detection of minute structural differences between closely related molecular isoforms. We will further develop a novel approach to electrical transport measurements on single molecules aimed at generating for the first time a catalog of ‘electrical signatures’ for biomolecules in solution. The ability to experimentally link electrical charge and molecular structure will not only open up a new physical dimension in our understanding of macromolecules, but also advance the development of ultrasensitive, high-throughput molecular sensors for biomedical detection and analytics, potentially enabling an optical or electrical “single-snapshot” read-out of the proteome or transcriptome of a single cell.

Fields of science (EuroSciVoc)

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Keywords

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.

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.

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.

ERC-COG - Consolidator Grant

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) ERC-2016-COG

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Host institution

THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD
Net EU contribution

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.

€ 2 124 965,00
Address
WELLINGTON SQUARE UNIVERSITY OFFICES
OX1 2JD Oxford
United Kingdom

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Region
South East (England) Berkshire, Buckinghamshire and Oxfordshire Oxfordshire
Activity type
Higher or Secondary Education Establishments
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Total cost

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.

€ 2 124 965,00

Beneficiaries (2)

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