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TiFuN

Tiny Functional Au Nanorods: Novel NIR-Photothermal Nanoprobes for Single-Molecule Tracking at Confined Cellular Environment

Total Cost €

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EC-Contrib. €

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Partnership

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 TiFuN project word cloud

Explore the words cloud of the TiFuN project. It provides you a very rough idea of what is the project "TiFuN" about.

haystack    core    chemistry    dynamics    length    spectral    rods    fellow    resonance    nir    background    cellular    cell    valuable    confined    correlative    dr    prof    electron    brilliant    imaging    dgu    needle    neurotransmitter    nanoparticles    bioconjugated    gradient    probes    photostability    proteins    nanoprobe    size    nanorods    tiny    adhesion    exceptional    np    lounis    bioconjuagted    sources    spr    density    regions    specificity    nps    smaller    choquet    organelles    limits    surface    window    detection    microscopy    ultrahigh    labeling    owing    laser    multicolor    neural    diameter    utilize    property    ratio    integrin    receptors    lt    group    tool    interdisciplinary    nanoprobes    elongated    world    sites    expertise    sensitivity    individual    technique    tunable    subsequently    tifun    centered    nm    light    530    centrifugation    signal    synapse    phi    harvested    small    display    neuroscience    combination    detected    domain    single    molecule    plasmon    volume    easily    gold    photothermal    toxicity    biology    optics    absorption    nanochemistry    protocol    tackle    synapses    setup   

Project "TiFuN" data sheet

The following table provides information about the project.

Coordinator
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS 

Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794
website: www.cnrs.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website http://onlinelibrary.wiley.com/doi/10.1002/advs.201600280/epdf
 Total cost 185˙076 €
 EC max contribution 185˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2015
 Duration (year-month-day) from 2015-04-01   to  2017-03-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS FR (PARIS) coordinator 185˙076.00

Map

 Project objective

Photothermal Imaging (PhI) is an absorption detection technique used for the detection of single gold nanoparticles (NPs), which can be a valuable tool to tackle complex cellular activities. In order to study the dynamics of individual proteins in confined regions such as in neural synapses or in cell adhesion sites, small nanoprobes are needed. Gold NPs (~ 5 nm) can be used, however their surface plasmon resonance (SPR) is centered at 530 nm, a spectral domain where absorption of cellular organelles results in a background signal, which limits the sensitivity of PhI. A brilliant way to find the needle in the haystack is the development of a novel nanoprobe having NIR-absorption, smaller size and high specificity. In “TiFuN”, we will achieve this goal by developing tiny (length/diameter <10 nm/5 nm) gold nanorods (T-rods), an elongated gold NP with tunable SPR in the NIR-window. Different aspect ratio T-rods harvested using Density Gradient Ultrahigh (DGU) centrifugation protocol will be highly promising probes for multicolor labeling and detection of proteins. A dedicated PhI setup based on NIR-laser sources will also be built. Subsequently, the bioconjuagted T-rods and NIR-PhI will be used to study the dynamics of neurotransmitter receptors in synapse and integrin proteins in cell adhesion sites owing to their small core volume, NIR-absorption, exceptional photostability, and non-toxicity. Bioconjugated T-rods will also display the unique property of being easily detected with light and electron microscopy at the single- molecule level, and therefore will be a valuable tool for light/electron correlative microscopy. This highly interdisciplinary project (optics, chemistry and biology) will utilize the fellow’s expertise in nanochemistry in combination with world-leading expertise of Prof. Lounis group in single-molecule detection and Dr. Choquet institute in neuroscience and cell biology.

 Publications

year authors and title journal last update
List of publications.
2017 Edakkattuparambil Sidharth Shibu, Nadezda Varkentina, Laurent Cognet, Brahim Lounis
Small Gold Nanorods with Tunable Absorption for Photothermal Microscopy in Cells
published pages: 1600280, ISSN: 2198-3844, DOI: 10.1002/advs.201600280
Advanced Science 4/2 2019-07-23

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