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        <title>Free Patents Online: Nanotechnology</title>
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        <description>USPTO Class 977 Nanotechnology</description>
        <language>en-us</language>
        <lastBuildDate>Tue, 07 Feb 2012 08:00:00 EST</lastBuildDate>
        <item>
            <title><![CDATA[Optical ovonic threshold switch]]></title>
            <link>http://www.freepatentsonline.com/8111546.html</link>
            <description><![CDATA[A method and device for accomplishing transformation of a switching material from a resistive state to a conductive state. The method utilizes a non-electrical source of energy to effect the switching transformation. The switching material may be a chalcogenide switching material, where the non-electrical source of energy initiates switching by liberating lone pair electrons from bound states of chalcogen atoms. The liberated lone pair electrons form a conductive filament having the characteristics of a solid state plasma to permit high current densities to pass through the switching material. The device includes a switching material with electrical contacts and may be interconnected with other elements in a circuit to regulate electrical communication therebetween.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Phase-change memory device and firing method for the same]]></title>
            <link>http://www.freepatentsonline.com/8111545.html</link>
            <description><![CDATA[A phase-change memory device and its firing method are provided. The firing method of the phase-change memory device includes applying a writing current to phase-change memory cells, identifying a state of the phase-change memory cells after applying the writing current, and applying a firing current, in which an additional current is added to the writing current, to the phase-change memory cells in accordance with the state.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Carbon-coated metal oxide nano-particles and method of preparing the same]]></title>
            <link>http://www.freepatentsonline.com/8110520.html</link>
            <description><![CDATA[A method of preparing carbon-coated metal oxide nano-particles and carbon-coated metal oxide nano-particles prepared with the same method are described. The method includes the following steps at least. A precursor of a polymer is polymerized on metal oxide nano-particles to form polymer-coated metal oxide nano-particles. Then, pyrolysis is conducted to carbonize the polymer coated on the metal oxide nano-particles, so as to form carbon-coated metal oxide nano-particles.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Low temperature synthesis of nanowires in solution]]></title>
            <link>http://www.freepatentsonline.com/8110510.html</link>
            <description><![CDATA[Methods synthesizing nanowires in solution at low temperatures (e.g., about 400° C. or lower) are provided. In the present methods, the nanowires are synthesized by exposing nanowire precursors to metal nanocrystals in a nanowire growth solution comprising a solvent. The metal nanocrystals serve as seed particles that catalyze the growth of the semiconductor nanowires. The metal nanocrystals may be formed in situ in the growth solution from metal nanocrystal precursors. Alternatively, the nanowires may be pre-formed and added to the growth solution.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Memory cell that includes a carbon-based memory element and methods of forming the same]]></title>
            <link>http://www.freepatentsonline.com/8110476.html</link>
            <description><![CDATA[In accordance with aspects of the invention, a method of forming a memory cell is provided, the method including forming a steering element above a substrate, and forming a memory element coupled to the steering element, wherein the memory element comprises a carbon-based material having a thickness of not more than ten atomic layers. The memory element may be formed by repeatedly performing the following steps: forming a layer of a carbon-based material, the layer having a thickness of about one monolayer, and subjecting the layer of carbon-based material to a thermal anneal. Other aspects are also described.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Nanofludic field effect transistor based on surface charge modulated nanochannel]]></title>
            <link>http://www.freepatentsonline.com/8110410.html</link>
            <description><![CDATA[A field effect transistor device includes: a reservoir bifurcated by a membrane of three layers: two electrically insulating layers; and an electrically conductive gate between the two insulating layers. The gate has a surface charge polarity different from at least one of the insulating layers. A nanochannel runs through the membrane, connecting both parts of the reservoir. The device further includes: an ionic solution filling the reservoir and the nanochannel; a drain electrode; a source electrode; and voltages applied to the electrodes (a voltage between the source and drain electrodes and a voltage on the gate) for turning on an ionic current through the ionic channel wherein the voltage on the gate gates the transportation of ions through the ionic channel.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Fluorescent nanoscopy method]]></title>
            <link>http://www.freepatentsonline.com/8110405.html</link>
            <description><![CDATA[An analysis of an object dyed with fluorescent coloring agents carried out with the aid of a fluorescent microscope which is modified for improved resolving power and called a nanoscope. The method is carried out with a microscope having an optical system for visualizing and projecting a sample image to a video camera which records and digitizes images of individual fluorescence molecules and nanoparticles at a low noise, a computer for recording and processing images, a sample holder arranged in front of an object lens, a fluorescent radiation exciting source and a set of replaceable suppression filters for separating the sample fluorescent light. Separately fluorescing visible molecules and nanoparticles are periodically formed in different object parts, the laser produces the oscillation thereof which is sufficient for recording the non-overlapping images of the molecules and nanoparticles and for decoloring already recorded fluorescent molecules, wherein tens of thousands of pictures of recorded individual molecule and nanoparticle images, in the form of stains having a diameter on the order of a fluorescent light wavelength multiplied by a microscope amplification, are processed by a computer for searching the coordinates of the stain centers and building the object image according to millions of calculated stain center co-ordinates corresponding to the co-ordinates of the individual fluorescent molecules and nanoparticles. With this invention it is possible to obtain a two-dimensional and a three-dimensional image with a resolving power better than 20 nm and to record a color image by dyeing proteins, nucleic acids and lipids with different coloring agents.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Engineered toehold reactions and networks]]></title>
            <link>http://www.freepatentsonline.com/8110353.html</link>
            <description><![CDATA[A catalytic system and method of catalyzing reactions that uses a novel toehold exchange mechanism that allows a specified input to catalyze the release of a specified output, which in turn can serve as a catalyst for other reactions is provided. This toehold exchange catalyst system, which can be driven forward by the configurational entropy of the released molecule, provides an amplifying circuit element that is simple, fast, modular, composable, and robust. Using this toehold exchange catalyst system it has been possible to construct and characterize several circuits that amplify nucleic acid signals, including a feed-forward cascade with quadratic kinetics and a positive feedback circuit with exponential growth kinetics.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Conductive polymer-carbon nanotube composite and manufacturing method thereof]]></title>
            <link>http://www.freepatentsonline.com/8110170.html</link>
            <description><![CDATA[Provided are a conductive polymer-carbon nanotube composite including a carbon nanotube and a conductive polymer filled therein, and a method of manufacturing the same. The conductive polymer-carbon nanotube composite where a conductive polymer is filled in a carbon nanotube is manufactured by introducing a monomer of the conductive polymer into the carbon nanotube using a supercritical fluid technique and polymerizing the monomer. The conductive polymer-carbon nanotube composite is a novel nano-structure material which can overcome limitations that conventional materials may have, and thus can be applied to various applications such as sensors, electrode materials, nanoelectronic materials, etc.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Nanowire synthesis from vapor and solid sources]]></title>
            <link>http://www.freepatentsonline.com/8110167.html</link>
            <description><![CDATA[Methods of the present invention can be used to synthesize nanowires with controllable compositions and/or with multiple elements. The methods can include coating solid powder granules, which comprise a first element, with a catalyst. The catalyst and the first element should form when heated a liquid, mixed phase having a eutectic or peritectic point. The granules, which have been coated with the catalyst, can then be heated to a temperature greater than or equal to the eutectic or peritectic point. During heating, a vapor source comprising the second element is introduced. The vapor source chemically interacts with the liquid, mixed phase to consume the first element and to induce condensation of a product that comprises the first and second elements in the form of a nanowire.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Separation of carbon nanotubes in density gradients]]></title>
            <link>http://www.freepatentsonline.com/8110125.html</link>
            <description><![CDATA[The separation of single-walled carbon nanotubes (SWNTs), by chirality and/or diameter, using centrifugation of compositions of SWNTs in and surface active components in density gradient media.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
        </item>
        <item>
            <title><![CDATA[Synthesis of PtCo nanoparticles]]></title>
            <link>http://www.freepatentsonline.com/8110021.html</link>
            <description><![CDATA[Synthesis of nanoparticles with particle size control is provided by the method of using two different metal-containing precursors, a capping component, an optional reducing agent, and then contacting the two precursors with the capping component to form a reaction solution, which is heated to produce first and second metals-containing nanoparticles. By controlling the ratio of the concentration of the capping component to the total concentration of the two metal-containing precursors, the nanoparticles can have diameters ranging between about 1 nm to about 15 nm. A decrease in the concentration of the capping component typically increases the size of the nanoparticles. Preferred compositions include Pt and Co-containing alloy nanoparticles. Controlled synthesis of larger, about 6 nm to about 12 nm, sized nanoparticles can be achieved in a solvent-free reaction process.]]></description>
            <pubDate>Tue, 07 Feb 2012 08:00:00 EST</pubDate>
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