Objective
Currently, the two prominent schemes for single-molecule fluorescence detection (SMFD), confocal microscopy and camera-based total-internal-reflection or wide-field microscopy, are ultimately limited in their ability to combine the detection of many molecules with obtaining data at sufficiently high time resolution, necessary for resolving fast dynamics with single-molecule fluorescence resonance energy transfer (smFRET). In particular, monitoring enzymatic reactions using smFRET is extremely challenging and remains to a large extent unexplored.
Here, I propose a novel nanofluidic device to overcome these limitations by using nanochannels, which provide a well-defined flow path for a
fluorescent species through the excitation/detection focus of a conventional wide-field microscope. Using an array of nanochannels offers several advantages: First, the geometrical confinement enables long observation times of non-immobilized molecules. Second, the residence time of molecules in the channels is easily controlled by the flow velocity set by the syringe pump. Third, faster flow rates together with using a CCD camera in ‘streaking mode’ enable a sub-millisecond
time resolution. Fourth, a high-throughput detection is achieved by using a parallel array of channels. Fifth, enzymatic reactions can be directly triggered by mixing necessary components on-the-fly using an additional inlet.
The described device will pave the way for high-throughput single-molecule detection, which will greatly expand the possibilities for researchers to apply single-molecule methods in the area of Life Sciences.
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: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.
- engineering and technology electrical engineering, electronic engineering, information engineering electronic engineering sensors optical sensors
- natural sciences physical sciences optics microscopy confocal microscopy
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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.
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.
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.
FP7-PEOPLE-2013-CIG
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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.
MC-CIG - Support for training and career development of researcher (CIG)
Coordinator
6708 PB Wageningen
Netherlands
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.