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Colloids: Assembly, Structuration, Detection and Manipulation for Biological applications
 
BioColloNa leader - LTM‐CNRS UMR5129
Thu, Dec. 01st 2011, 11:00
NIMBE Bât.125, p.157, CEA-Saclay

Colloidal Nanostructures (CNs) are offently referred as ‘artificial atoms’ due to the control of the density of their electronic states/composition/size/shape. Due to their nanometer size, they scattered or emitted light opening the control of light propagation/optical sensing at the wavelength scale. Morevover, their high specific surface combined with CNs core‐shell functionalisation allows the development of biosensing applications. Finally, CNs are considered as as potential building blocks in the research field of nanobioscience. But to fully study and exploit their nanoscale properties, rapid and low‐cost technological ways must be develop to overcome colloidal Brownian motion and localize in a deterministic way CNs on a surface or in a microfluidic chip.

 

My intervention will firstly present original alternative strategies to handle (assembly, localize, separate,..) CNs. The integration of colloidal nanostructures into nanodevices is studied in realtime by exploiting capillary forces or by the use of an external field gradient (Electric–Optic). The physical properties of colloidal/supra‐colloidal nanostructure devices are determined: Plasmonic coupling ‐colloidal waveguiding…. Then, I will present several routes to create, manipulate and handle new types of multifunctional colloidal materials based on non‐contact forces. I will show the electrokinetics properties of particles, cells and from a particles‐cell complex in a microfluidic chip for cell handling. According to the cellular type, those complexes are characterized by a cell that has internalized particles or is decorated by particles attached on its membrane. Submitted to determined electrokinetic forces, those complexes show dual responses that are controllable on both particles or cell independently. By associating the engineering of colloidal particles and this electrokinetic contactless handling microfluidic technology, local forces can be exerted on cells via those particles.

 

 

 

Contact : Florent MALLOGGI

 

Séminaire LIONS - Informations pratiques

Entrée sur le site du CEA de Saclay pour les séminaires LIONS

 

Afin de pouvoir entrer sur le site du CEA de Saclay veuillez adresser les données personnelles suivantes par courriel à David Carrière et Michèle COLIN (secrétariat) un avis d’entrée vous sera alors délivré :

Nom :
Prénom :

Date et lieu de naissance :
Nationalité :

Nom de l'employeur :

Ces informations doivent être envoyées au mieux deux jours avant la date du séminaire.

Lors de votre venue vous devez vous présenter avec une carte d'identité ou un passeport en cours de validité. L'entrée sur le site se fait par l'entrée principale ou porte Nord (suivre le lien ci-dessous), un badge vous y sera remis. Demandez à l'accueil le Bât.125 ils vous renseigneront. Les séminaires se déroulent en pièce 157 (1er étage). En cas de problème vous pouvez contacter le secrétariat au 01.69.08.64.81.



 Formalities for entering the CEA Saclay site for LIONS seminars

 

To enter in CEA Saclay you need to send the following personal data to David Carrière and Michèle COLIN (secretariat):


Last Name :
First Name :

Place and date of birth :
Nationality :

Employer Name :


These informations must be preferably sent at least two days before the seminar date.

When you come you must have a valid ID card or passport with you.

The entrance in CEA Saclay is through the main entrance or north entrance (see link below), a pass will be delivered. Ask at the “accueil” the path for the building 125. LIONS seminars take place in room 157 (first floor).

Any questions/troubles do not hesitate to contact our secretariat: 01.69.08.64.81.

 

Informations:  Access
Contact:  David Carrière

#26 - Last update : 10/10/2012

 

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