Upcoming Events

Recent Advances in Diamond Nanoparticles

June 27, 2012 4:00PM to 5:00PM
Presenter 
Olga Shenderova, International Technology Center
Location 
Building 440, Room A105-106
Type 
Colloquium
Series 
CNM Nanoscience Colloquium
Refreshments will be available at 3:30 p.m.

Abstract:
Within the last few years, world-wide interest in applications of nanodiamond (ND) particles has grown rapidly [1]. Nanodiamond particles with the smallest crystal size of just a few nanometers are produced by detonation of carbon-containing explosives (so called detonation nanodiamonds) or by grinding microdiamond powders manufactured by static high-pressure, high-temperature synthesis. Diamond particles smallerthan 10 nm have remarkable optical and mechanical properties in combinationwith biocompatibility, high specific surface area, and tunable surface structure. They are the least toxic of all carbon nanoparticles and their properties make them a favorable platform for drug delivery and cellular labeling/imaging.

Numerous applications of NDs are under development, including high precision polishing, wear resistant additives to metal coatings, anti-friction additives to lubricants and oils, polymer nanocomposites and coatings with enhanced strength and scratch resistance, UV-protection coatings, seeding slurries for growth of CVD diamond films and many others applications. Recently, several important new application areas have been implied based on the potential of incorporating foreign atoms in the lattice of nanodiamond particles. Major thrust areas where controlled doping of NDs and on-demand production of N-V centers can revolutionize the field include quantum information processing, quantum computing, magnetometry and photoluminescent probes. Synthesis, structure, surface chemistry, phase transformations, andapplications of diamond nanoparticles will be surveyed and areas of future scientific research highlighted.

References:
[1] V. N.Mochalin, O. Shenderova, D. Ho and Y. Gogotsi The properties and applications of nanodiamonds, (2012) Nature Nanotechnology, 7 (1) 11-23.

Biography:
Dr. Olga A. Shenderova is a President of Adámas Nanotecnologies Inc. Raleigh, and the Head of the Nanocarbon Laboratory of International Technology Center (ITC), Raleigh, USA. She received her Ph.D. in Computational Materials Science from the St. Petersburg State Technical University, Russia (1991). Then during her appointment at North Carolina State University (1995-2001) she performed atomistic simulations of mechanical and electronic properties of carbon nanostructures. Since 2001 she works at ITC on applied research projects.

Her areas of expertise include: nanodiamond particle surface modification and fractioning; influence of synthesis conditions on ND composition; nitrogen state in nanodiamond; development of ND-based additives for lubricants, development of ND-polymer composites, optical and biological applications of ND; development of ND slurries for seeding; electroplating with NDs; development of ND-CNT-OLC composites and slurries; onion-like carbon (OLC) synthesis, modification and characterization; atomistic simulations of mechanical and electronic properties of carbon nanostructures.

Other programs in which she was involved include photonic composites research, application of field emission cathodes for high power amplifiers, design of diffractive optics elements, and design of phototherapy bandages. She has given more than 70 invited talks and authored over 100 papers in peer reviewed journals, 15 book chapters, and edited 4 books related to nanodiamonds. She has 19 patents (issued and pending). She is a Chair, MRS Symposium FF: Nanodiamond Particles and Related Materials— From Basic Science to Applications, San-Francisco, USA, 2012.