E-MRS Spring 2012 - Symposium K

Surface modifications of carbon-related materials II

 Full Program Sympo K 553.65 Kb

Diamond and carbon-based materials (diamond like carbon, carbon nanotubes, graphene, carbon onions,…) show exceptional properties in aqueous solutions with nearly perfect interfaces for bio-chemical sensors or for drug delivery applications.

Scope

Grafting of carbon materials for bioapplications...

This  symposium  focuses  on  chemical  modifications  applied  to  graft  surfaces  of  diamond,  nano-diamond particles, diamond-like carbon, graphene, graphite, carbon nano-tubes , and carbon dots with linker molecular layers for realization of bio-sensors, bio-markers, fillers in polymer composites, nanolubricants, drug delivery, separation techniques, and switchable chemical links.

Techniques can  span  from  spontaneous  bonding  to  photo-chemical  attachment,  electrochemical  modifications,  to Suzuki-coupling of aryl molecules. Special attention will be drawn to mechanisms driving bonding kinetics such  as  electron  transfer  reactions,  hydrogen  cleavage  reactions  by  nucleophilic  molecules  and  growths schemes  which  may  vary  from  correlated  two-dimensional  chain  reactions  to  three  dimensional  cross polymerization.  Hydrogen  terminations,  surface  defects,  surface  roughness  and  atomic  arrangements  of surface  carbon  atoms  are  of  interest  to  elucidate  bonding  mechanisms.  Approaches to avoid agglomeration of diamond nanoparticles during surface functionalization reactions will be of particular interest. Aim is  to  develop  basic understanding ranging from the atomic/molecular level to macroscopic properties of modified carbon related surfaces. 

The  symposium  will  draw  attention  towards  surface properties of various carbon materials like bonding  stability,  either  of  linker  molecules  or  of  complex functionalized  surfaces  with therapeutic molecules, DNA,  proteins  and  enzymes.  The  electronic  interface  will  be  of  interest, especially data deduced from spectroscopic measurements which allow to determine surface and interface defect  densities,  Fermi  level  pinning  and  electron  transfer  rates.  Miniaturization of sensor area  and application of new detection schemas will be major topics in this symposium. 

Diamond  nano-particles,  CNT and carbon dots are  used  as  biomarkers  in  drug  delivery  experiments  to  monitor  propagation  of biomolecules.  This  symposium  will  therefore  include  a  forum  where  a)  physical  properties,  b)  surface modifications, c) color-center formation, and d) size related limitations of cell penetration will be discussed. Of particular interest will be a discussion on ways to control content and state of doping elements (nitrogen and others) in the interior of diamond nanoparticles. 

"Controlled release" of drugs from nano-particles or from AFM tips will be a topic of this meeting taking into account: a) spontaneous release, b) triggered release by light induced bond breaking or c) electrochemical bond-breaking. Finally, a discussion of "bio-compatibility" of carbon related transducers and nano-particles will be of interest for this meeting.

Hot topics to be covered by the symposium

1. Photochemical surface modifications.
2. Surface grafting of diamond films and nanoparticles
3. Electrochemical formation of linker layers.
4. Adsorption effects of bio-molecules to transducer surfaces.
5. Carbon nanomaterials for drug delivery and novel therapies.
6. Interface electronic properties of transducers and buffers.
7. Sensing principles.
8. Stability of biofunctionalized surface.
9. Doping elements in diamond nanoparticles
10. Toxicity of nanoparticles for bioapplications.
11. Novel sensing and imaging applications.
12. Nanocarbon particles-polymer interfaces in nanocomposites 

Confirmed invited speakers

• C. Agnes (Néel Institute, Grenoble, France) "New route of diamond derivatization for biosensors fabrication"
• A. Bianco (ITC, Strasbourg, France) "Biocompatible and biodegradable multifunctional carbon nanotubes"
• C. Cabrera (Univ Puerto Rico) "Boron doped diamond nanoparticles"
• C. Fan (Shanghai Institute of Applied Physics, China) "Graphene-based biosensing and antibacterial applications".
• E. Flahault, (Toulouse University, France) "Double-walled Carbon Nanotubes: toxicity and environmental impact".
• J. Garrido (TUM, Germany) “Graphene: a novel carbon material for sensing applications”
• D. Ho (Northwestern University, USA) "Nanodiamond Platforms for Multi-Functional Therapeutic Agent Delivery"
• K. Holt (UCL, UK) "Redox chemistry of the nanodiamond surface"
• D. Pang (Wuhan University, China) "Electrochemical Tuning of Luminescent Carbon Nanodots: From Preparation to Luminescence Mechanism".
• B. Rezek (Institute of Physics, Prague, Czech Republic) "Analyzing properties and interactions of surface-functionalized diamonds by atomic and Kelvin force microscopy"

Sponsors:

	SKN, Snezhinsk, Russia

Symposium Organizers

Jean-Charles ARNAULT
CEA LIST
Laboratoire Capteurs Diamant
bâtiment 451, Point Courrier 45
91191 Gif sur Yvette
France
Tel: (+33) 1 69 08 71 02
Fax: (+33) 1 69 08 78 19
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Nianjun YANG
Fraunhofer Institut für Angewandte Festkörperphysik
Tullastrasse 72
79108 Freiburg, Germany
Tel: (+49) 761 5159647
Fax: (+49) 761 5159 71647
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Olga SHENDEROVA
International Technology Center
8100 Brownleight Dr., S.120
Raleigh, NC 27617, USA
Tel: (919)-881-0250(-226)
Fax: (919)-881-0440
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Naoki KOMATSU
Shiga University of Medical Science
Seta, Otsu 520-2192, Japan
Tel: (81) 77 548 2102
Fax: (81) 77 548 2405
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Zhuang LIU
Institute of Functional Nano & Soft Materials Soochow University
199 Ren-Ai Road, Suzhou Industrial Park
Suzhou 215123, China
Tel: (86) 512 65882036
Fax: (86) 512 65882846
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