site.ieee.orgsite.ieee.org/sfbanano/files/2016/07/NanoCON-Day-2-IEEE-Narayan.pdf · effect of...
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2011 U.S. Patent Leaders*1. IBM 6,1802. Samsung 4,8943. Canon 2,8214. Panasonic 2,5595. Toshiba 2,4836. Microsoft 2,3117. Sony 2,2868. Seiko Epson 1,5339. Hon Hai 1,51410. Hitachi 1,465
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Longer development periods are required for future technology node generations2 Year cycle is unsustainable – likely reverting 3 (or longer) year cyclesTranslates into longer time to recoup costs
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To illustrate the rapid introduction of new materials look at the number of elements used between 1990 to 2005.
And then beyond 2005 you see the number of elements that we are currently introducing into semiconductor manufacturing
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Vancomycin-Resistant Enterococci
Methylcillin Resistant S. Aureues
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Note this is a rough identification of which methods are useful in each category; these imply the skill sets needed for the different projects.
We have also surveyed and identified important topic areas in each category. These are not on a slide since many of them are open scientific questions, not technical capabilities or projects underway.
1. molecular interactions & reactions
monomer properties
interactions (ion-water, ion-monomer, water-monomer)
reactive processes (Cl attack, hydrolysis)
Molecular ions (Arsenic and beyond)
pH/pKa
2. structure & morphology
monomer structure – polymer property relationships
free volume & percolation
effect of polymerization process on material structure
role of crosslinking
distribution of functional groups
3. physical chemistry of desalination & filtration
ion distribution & dynamics
partitioning of ions & water into membrane
mechanism of diffusion in membrane
role of defects in transport
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fundamental limits of transport
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New materials are critical to both addressing many of the worlds challenges, and to the success of a wide variety of companies:
•Batteries for Electric Cars and power storage
•Lower cost ways of creating fresh water from salt water
•xxxx (one of spikes examples..... or we can fall back on "getting a toxic drug delivered only to the cancer cells")
•New product creation is dependent on new materials across semiconductors, electronics, CPG, aerospace and defense
Most New Materials innovation has not advance much beyond Thomas Edison's approach to creating his light bulb
•Trial and Error -- many expensive, failed experiments
•Difficulty levering information that is already know
•The process takes a long time, is very expensive, and is often dependent on just a few, very experienced experts
IBM can provide a better way, shortens the time, lowers the cost, reduces the risk
•unlock the existing information about materials (Journals, databases. Both Public and corporation private information)
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•Use computerized models and simulations to do "in silico" experiments to eliminate compounds that would not work, and design a few high probability ones that can be tested in the wet lab
•Pull it all together with Innovation transformation services enable a companies R&D groups get the benefits from these tools
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Slide could be used to introduce goal of NanoMRI work
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Current methods to determine molecular structure for large biomolecules (e.g., x-ray crystallography and NMR spectroscopy) have significant limitations. Consequently, the vast majority of proteins in the human body have no known structure. Our approach is to adopt some of the principles of magnetic resonance imaging (MRI) and use a new detection method in order to vastly improve the sensitivity and resolution of MRI. We have achieved a 100 million-fold improvement in MRI sensitivity by using a detection method based on ultrasensitive detection of magnetic force. We call the technique “magnetic resonance force microscopy” or MRFM. The work is being performed at IBM in collaboration with the NSF-funded Stanford University Center for Probing the Nanoscale.
MRFM uses ultrasensitive force detection to get around the limitations of the inductive detection used in normal MRI. MRI works by detecting the weak nuclear magnetism (or "spin") of the (typically hydrogen) nuclei in the sample object. In our MRFM technique, a nanomechanical cantilever made from single-crystal silicon carries the sample attached to its end. The cantilever with the sample attached is brought up close to a magnetic tip. The magnet exerts a magnetic force on the spins in the sample, just as two bar magnets either attract or repel. The orientation of the sample spins (up or down) can be manipulated through application of a radiofrequency (rf) magnetic rf field, applied by driving ac current through a microwire under the magnetic tip. If the rf field is applied at the natural precession frequency of the spins, the so-called Larmor frequency, the spins can be inverted,
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causing the force on the spins to be cycled between attractive and repulsive, which in turn causes cantilever to vibrate. The vibration of the cantilever, typically less than 1 angstrom in amplitude, is then detected with an optical-fiber based interferometer.
Because the Larmor frequency is directly proportional to the total field felt by the spins, only spins at certain locations will be manipulated. The region where the field just matches the resonant condition is known as the resonant slice. The thickness of the resonant slice can be only a few nanometers thick for a 200 nm tip, leading to the high lateral resolution for imaging. Scanning the resonant slice in 3 dimensions results in a data set that can be deconvolved to reconstruct the full 3D object.
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Slide could be used to introduce goal of NanoMRI work
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