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Nano Electro-Mechanical Systems (NEMS) are tiny
machines built at the nanometer scale. Current
NEMS applications are simple machines, such as
the tiny cantilever shown at the right. An electrical circuit measures the deflection
of the lever. A larger version of this device,
with dimensions at the micrometer or millimeter
scale, is commonly used as an airbag sensor in
automobiles. A sudden stop causes a strong
deflection of the lever, which signals that
the airbags should be deployed. At the nano
scale, such a lever is sensitive enough to
measure the weight of individual atoms or
molecules resting upon it.
Learn more about NEMS from the
resources available on this site, listed below.
Gated Chemical Transport through Vertically Aligned Carbon Nanotube Membranes
out of 5 stars
08 Apr 2005 |
A promising architecture for ion-channel mimetics is a composite membrane structure containing vertically aligned carbon nanotubes, with inner core diameters of 7 nm, passing across a polystyrene matrix film. Plasma oxidation during the fabrication process introduces carboxylic acid groups on...
Electrochemical Gating and Molecular Adsorption on Carbon Nanotubes
Highly sensitive response of semiconducting single-walled carbon naotubes (SWNTs) to molecular adsorption provides a simple and effective direction in exploiting their unique electrical properties. For example, simultaneous doping and nearly ideal gate efficiencies are achieved with polymer...
Computational Studies of Confined & Externally Flowing Gases on the Mechanical Properties of Carbon
08 Apr 2005 | | Contributor(s):: Susan Sinnott
Historically, molecular dynamics simulations have played an important role in elucidating the mechanical responses of carbon nanotubes to external forces. Here, they are used to explore the interactions of carbon nanotubes with gases that are either confined to the nanotube interiors or are...
08 Apr 2005 | | Contributor(s):: Narayan Aluru
In this talk, I will present our recent results on computational analysis of electric field mediated transport of liquids and electrolytes in nanochannels.
Nanotechnology-Enabled Direct Energy Conversion
25 Mar 2005 | | Contributor(s):: Gang Chen
Energy transport in nanostructures differs significantly from macrostructures because of classical and quantum size effects on energy carriers such as on phonons, electrons, photons, and molecules. Nanoscale effects can be tailored to develop more efficient direct energy conversion technologies...
Self-Heating and Scaling of Silicon Nano-Transistors
05 Aug 2004 | | Contributor(s):: Eric Pop
The most often cited technological roadblock of nanoscale electronics is the "power problem," i.e. power densities and device temperatures reaching levels that will prevent their reliable operation. Technology roadmap (ITRS) requirements are expected to lead to more heat dissipation problems,...
Nanotechnology 501 Lecture Series
22 Feb 2005 | | Contributor(s):: Gerhard Klimeck (editor), Mark Lundstrom (editor), Joseph M. Cychosz (editor)
Welcome to Nanotechnology 501, a series of lectures designed to provide an introduction to nanotechnology. This series is similar to our popular lecture series Nanotechnology 101, but it is directed at the graduate students and professionals.
Lecture 4: Sensing Methodologies (cont), Integrated BioMEMS and Nanodevices
07 Feb 2005 | | Contributor(s):: Rashid Bashir
Lecture 3: Microfluidic Transport (cont), Sensing Methodologies
Lecture 2: Essentials of Microbiology, Introduction to Microfluidics
Lecture 1: Introduction, Device Fabrication Methods, DNA and Proteins
The Network for Computational Nanotechnology (NCN) held a workshop entitled Challenges and Opportunities in the Development of Nanoelectromechanical Systems on April, 8, 2005. The workshop was held at the Entrepreneurship Center at Purdue University and featured presentations and discussion on...
Single Electron Switching with Nano-Electromechanical Systems and Applications in Ion Channel Transport
01 Nov 2004 | | Contributor(s):: Robert H. Blick
Taking classes in physics always starts with Newtonian mechanics. In reducing the size of the objects considered however the transition into the quantum mechanical regime has to occur. The 'mechanics' of quantum mechanics is best studied in nano-structured semiconductor systems often termed...
Bioinformatics and Systems Biology: At the Crossroads of Biology, Engineering, and Computation
08 Oct 2004 |
Traditional biological research has relied on a "deconstructive" mode where piece-wise analysis of the components of complex systems was carried out in detail. The genome projects have spurred the discovery of new genes/molecules to add to the existing inventory of "parts" that make up living...
Construction of an Imitating Nano-motor Driven by Six ATP-binding RNAs of Bacterial Virus phi29
02 Dec 2004 |
A switchable imitating DNA-packaging motor was constructed in the laboratory. The motor is driven by six synthetic ATP-binding pRNA (packaging RNA) molecules that bind to the connector and function in a manner similar to the driving of a bolt with a hex nut. Conformational change and sequential...
Computational Prototyping Tools For Biological Applications
03 Dec 2004 |
Computational tools are playing a rapidly expanding role in biology, both for engineering design and in exploratory science. The main reason is that the dramatic improvements in the measurement and mathematical modeling of basic biochemical and biological processes is making it possible to...
Nanotechnology 101 Lecture Series
25 Aug 2004 |
Welcome to Nanotechnology 101, a series of lectures designed to provide an undergraduate-level introduction to nanotechnology. In contrast, the Nanotechnology 501 series offers lectures for the graduate-level and professional audiences.
Multiscale Modeling of the Mechanical Behavior of Polymer-Based Nanocomposites
25 Mar 2004 |
Polymers filled with nanoscale fillers (carbon nanotubes or nanoparticles) exhibit enhanced properties compared with the neat polymer and with the polymer filled with micron-sized fillers at same volume fraction. Most interestingly, combinations of exceptional properties may be obtained as, for...
BioMEMS and Bionano Devices for Bio/Medicine
26 Jul 2004 | | Contributor(s):: Rashid Bashir
BioMEMS and Bionano Devices for Bio/Medicine
2004 Linking Bio and Nano Symposium
26 Jul 2004 |
Explore ways universities can work together in Bio-NanoTechnology. Discover research opportunities in this emerging area. Network with professionals and researchers who share common interests. Hear the latest on current research topics