Optical properties of carbon nanotubes

people about nanotechnology changed as the once hidden properties of nanotechnology are slowly showing their capability to be harmful and less beneficial to society. Even though most of the people do not know anything about

What is Nanotechnology? First, we go through the definition word by word. Nanometer is a unit of number that represents 1x10-⁹ m. Next is technology, in this millennium era there are a loads of stuff and things that are related to technology. So generally speaking, technology is the application of scientific knowledge for practical purposes. Hence, from my point of view nanotechnology is something that I define as an application of scientific knowledge for inventing something in a nan scale which

Research Statement As a Research Associate (and a former Research Fellow) at the Harvard T. H. Chan School of Public Health (HSPH), my research has focused on i) the development of novel platforms to investigate exposure to particulate matter (Coarse, Fine, and Ultrafine Particles) and gaseous pollutants and ii) to understand the exposure risk, pathways, dose, and health effects. To attain these goals, I implemented state-of-the-art analytical techniques to characterize the exposures, developed novel

Ever since their discovery in 1991, Carbon nanotubes (CNTs) have gained a lot of interest due to their many unique physical and chemical properties. They are almost one dimensional structures with high mechanical strength (100 times stronger than Steel), ultra-light weight (1/6th the weight of steel) and exhibit excellent electrical and thermal conductivity. Most importantly, CNTs have the ability to effectively cross biological barriers and cellular membrane allowing their use in a wide spectrum

Matthew Chun ESS 102 Dr. Harnett 1/22/16 Space Elevator A way to push mankind forward we must explore further into space. The World famous physicist Stephen Hawking said that, “I believe that the long term future of the human race must be space and that it represents an important life insurance for our future survival, as it could prevent the disappearance of humanity by colonizing other planets” so it proves yet again that it is essential that we humans explore and colonize space. One of the biggest

two-dimensional material (2D), composed of layers of carbon atoms packed into a honeycomb network, has become a sparkling rising star on the horizon of material science in the last several years. Even though GN is the mother of all graphitic forms, including 0D fullerene, 1D carbon nanotubes (CNT) and 3D graphite, which have been intensively studied for decades, not too much attention was paid to GN before. Graphene, a monolayer of sp2 hybridized carbon atoms arranged in a honeycomb lattice, is an interesting

to restore the individual’s vision as it was before his/her specific disease. There are currently two main types of retinal prosthesis available commercially: those that use an external system for image capture and those that use the patient’s own optical focusing system. Being an example of each the Argus II retinal prosthetic system and the Alpha-IMS one, respectively. Both work with the same three-step mechanism that consists of capturing the visual images from the outside world, transducing them

challenge (such as anelectrical or an optical stimulus) to a PUF produces a unique response (a security key).Hence, this concept generates security keys that are unique for each electronic device. APUF construct must be easy to produce at low cost and yet have a physical structure that isimpossible to replicate,i.e.physically unclonable. Notably, the physical unclonability andthe uniqueness of the response are the core defining properties of a PUF5.Silicon-based PUFs have garnered

6.5.2. Diamond-Like Carbon Diamond-like carbon (DLC), exhibits a number of properties similar to diamond. DLC is a family of amorphous carbon materials, existing in seven different forms that contain sp2 and sp3 hybridised carbon atoms. Sp2 refers to the graphite bonding structure, whilst sp3 refers to a diamond bonding structure. Graphite and diamond have very similar structures, but the bonding type differentiates them. By altering the ratio of sp2 to sp3 bonding and hydrogen content, different

unique wettability, super hydrophobic and oleophilic surface property. This can be achieved with surface modification using nanoparticles. These types of modified nanomaterials will be able to absorb oil or toxic organic compounds from the contaminated