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Organizations and Websites for Nanotechnology Resources

Nanotechnology is a growing interdisciplinary technology. People from different background could work together to speed up the R&D and many research and indistrial opportunity exist in nanotechnology. Here organizations and websites in the area of nanotechnology are listed. Creative Design Compact Photocatalyst Ionizer Air Purifier, 7 Step Adjustable LED Desk Lamp, Nanotechnology and Fashion Design, No Consumable Item USA National Nanotech Initiative (NNI) http://www.nano.gov Food Read full article »

Tyndall Effect for Colloidal System

Tyndall effect (also known as Tyndall scattering) is a light scattering by particles in a colloid or a fine suspension. Example of Tyndall effect includes the visible beam of headlight in a foggy night.  Tyndall scattering is similar to the Rayleigh scattering. The fundamental difference is that the scattering particle is much smaller than the wavelength (less than one tenth) in Rayleigh scattering, while the Read full article »

Future and Challenges in Carbon Materials

Following is my notes based on the seminar by Prof. Ajayan from Rice University at UT AUstin on April 15, 2011.  Seminar Name: "Engineering nanocarbons: future and challenges"  How to make better carbon? Grierson, JAP 107, 0333523, 2010 Sp2/sp3 transform (beautiful TEM images), Banhart, Ajayan, Nature 1996 Defect engineering sp2- disc, cone, tube, - Thomas Ebbesen Sp2  carbon lattice- substitution and segregation, eg boron, Blasé Read full article »

New Eyes for Carbon Nanostructures

The following are my notes based on the seminar by Prof. Jiwoong park from Cornell at the UT Austin on April 14, 2011. Functionality New material new devices, achieving potential  applications need manipulation Challenges: Single CNT devices, not many publications, challenging part is you need to locate CNT and use lithography to define electrodes, CdSe/ZnS quantum nanocrystal,  Small change make big difference Synthesis—characterization—assembly/purification Synthesis: down to atomic details Characterization: Read full article »

Nobel Prize Goes to Graphene

Graphene research has helped two physists Andre Gein and Konstantin Novoselov from University of Machesterwin the Nobel Prize in physics this year. Graphene material is a planar structure where carbon atoms form hexagonal cells through sp2 bond. Graphene is recogonized as it has many super electrical, mechanical and thermal properties. It is strongly beleived that graphene materials will revoluze the way we use materials. Although Read full article »