Huang et al. produced some astonishing images of graphene grains that resembled a patchwork quilt. To obtain these images the researchers used TEM and diffraction-filtered imaging to show the location, orientation and boundaries of hundreds of graphene grains.
By integrating a Raman spectrometer within a state-of-the-art confocal microscope setup, Raman imaging with a spatial resolution down to 200 nm laterally and 500 nm vertically can be achieved using visible light excitation.
Our MEMS (Micro Electro Mechanical System) da Vinci chip boasts three familiar designs, imitating da Vinci's mechanical concepts: mechanical lion, the Vitruvian man, and a winged machine which is a combination of two of da Vinci's visions for flying devices.
By Mr. Austin Welborn
23 Jan 2011
In UV-NIL, a substrate is spin coated or drop dispensed with a UV-curable monomer or oligomer. Imprinting is carried out with a transparent template (quartz glass or soft working stamps) and the imprinted structures are cured by UV-light exposure which cross-links the resist.
Hot embossing technology is a low cost, flexible fabrication method, which has demonstrated polymer high aspect ratio microstructures as well as nanoimprinting patterns. It uses polymer substrates to imprint structures created on a master stamp.
The challenge of micro- and nano-fabrication lies in the difficulties and costs associated with patterning at such high resolution. Instead of relying on tradition fabrication techniques -- largely inherited from the semiconductor industry -- for microfluidic applications.
By Professor Michelle Khine
22 Dec 2010
Assembly, packaging, and testing activities account for 85% of the cost of many microsystems. This is primarily due to the lack of backend standards or general methodology. This presentation focuses on concurrent microengineering and the need for designing for micromanufacturability.
By Professor Harry Stephanou
15 Dec 2010
Remarkable properties of carbon nanotube assemblies (forests, sheets, yarns) are expected to lead to a variety of applications. It has recently been reported1 that freestanding multi-walled carbon nanotube (MWNT) sheets generate sound when heated with alternating current (ac).
By Dr. Mikhail Kozlov
8 Dec 2010
In this paper, the design of a generic in-vivo implantable biomedical device capable of detecting threshold values for targeted concentrations (i.e. detection of glucose levels) has been presented.
By Professor Esteve Juanola-Feliu
8 Dec 2010
This concept is based on the idea to mix on same device MEMS and NEMS technologies. The MEMS part is used for the mass to keep sufficient inertial force, and the NEMS is used as a very sensitive sub-µm suspended stress gage.
By Dr. Philippe Robert
30 Nov 2010