United States Patent Application 20100133513
Kind Code A1
Schmidt; Howard K. June 3, 2010
NANOPARTICLE / NANOTUBE-BASED NANOELECTRONIC DEVICES AND CHEMICALLY-DIRECTED ASSEMBLY THEREOF
Abstract
According to some embodiments, the present invention provides a nanoelectronic device based on a nanostructure that may include a nanotube with first and second ends, a metallic nanoparticle attached to the first end, and an insulating nanoparticle attached to the second end. The nanoelectronic device may include additional nanostructures so a to form a plurality of nanostructures comprising the first nanostructure and the additional nanostructures. The plurality of nanostructures may arranged in a network comprising a plurality of edges and a plurality of vertices, wherein each edge comprises a nanotube and each vertex comprises at least one insulating nanoparticle and at least one metallic nanoparticle adjacent the insulating nanoparticle. The combination of at least one edge and at least one vertex comprises a diode. The device may be an optical rectenna.
Inventors: Schmidt; Howard K.; (Cypress, TX)
Correspondence Name and Address:
WINSTEAD PC
P.O. BOX 50784
DALLAS
TX
75201
US
Assignee Name and Adress: William Marsh Rice University
Houston
TX
Serial No.: 910521
Series Code: 11
Filed: February 2, 2007
PCT Filed: February 2, 2007
PCT NO: PCT/US07/61563
371 Date: October 2, 2007
U.S. Current Class: 257/25; 257/E21.04; 257/E31.033; 438/57
U.S. Class at Publication: 257/25; 438/57; 257/E31.033; 257/E21.04
Intern'l Class: H01L 31/0352 20060101 H01L031/0352; H01L 31/18 20060101 H01L031/18
Goverment Interests
STATEMENT OF GOVERNMENT SPONSORSHIP
[0002]The present invention was made in part with United States Government support under a grant awarded by the Office of Naval Research, Grant No. N00014-04-1-0765 and the Department of Energy, Grant No. DE-FC36-050015073. The U.S. Government has certain rights in this invention.
Claims
1. A nanoelectronic device, comprising:a first nanostructure, comprising:a nanotube having first and second opposing ends;a metallic nanoparticle attached to the first end; and an insulating nanoparticle attached to the second end.
2. The nanoelectronic device according to claim 1, wherein the nanotube is conducting.
3. The nanoelectronic device according to claim 1, wherein the nanotube absorbs light.
4. The nanoelectronic device according to claim 3, wherein the nanotube comprises an antenna.
5. The nanoelectronic device according to claim 4, wherein the length between the first and second ends is about half a wavelength of the light.
[0046]The nanoelectronic device may be arranged so as operate as an optical rectenna. The optical rectenna may display frequency response some 10,000 times higher than achieved with prior optical rectennae and deliver useful power conversion well into the optical regime at 30,000 TH. The optical rectenna may find application in photovoltaics for conversion of light to electricity.
Source
Amazing - and as from ANI's grandfather, of interest here. Will ANI participate????
Showing posts with label Howard K. Schmidt. Show all posts
Showing posts with label Howard K. Schmidt. Show all posts
Thursday, June 3, 2010
Thursday, February 19, 2009
(WO/2009/023778) OPTICAL RECTIFICATION DEVICE AND METHOD OF MAKING SAME
- Biblio. Data
- Description
- Claims
- National Phase
- Notices
- Documents
| Latest bibliographic data on file with the International Bureau | ||||||||||||
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| IPC: | H01G 9/20 (2006.01) | |||||||||||
| Applicants: | WILLIAM MARSH RICE UNIVERSITY [US/US]; 6100 Main Street, Houston, TX 77005 (US) (All Except US). SCHMIDT, Howard, K. [US/US]; (US) (US Only). DUQUE, Juan [US/US]; (US) (US Only). | |||||||||||
| Inventors: | SCHMIDT, Howard, K.; (US). DUQUE, Juan; (US). | |||||||||||
| Agent: | SHADDOX, Robert, C.; Winstead Pc, P.o. Box 50784, Dallas, TX 75201 (US). | |||||||||||
| Priority Data: |
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| Title: | OPTICAL RECTIFICATION DEVICE AND METHOD OF MAKING SAME (Click pic to enlarge) |
| Abstract: |  A general approach is provided for producing devices that absorb optical photons (visible to near IR) and performs charge separation with a useful voltage between holes and electrons. These holes and electrons may be collected in electrodes for performing useful work outside the device. The described technology is generally based upon rectification of plasmons (collective electric excitations) generated by absorbing light with tuned metallic antennas. According to some embodiments, the present invention provides a spatial array of nanoscale conductors forming an optical rectenna that responds to an incident light source and generates a current offset that may be rectified by a rectification-inducing material. The present inventors foresee an extensive use of these optical rectennas as photovoltaic devices, as well as a wide interest in diverse fundamental research and applied technologies. |
| Designated States: | AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. African Regional Intellectual Property Org. (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW) Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM) European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR) African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG). |
| Publication Language: | English (EN) |
| Filing Language: | English (EN) |
Thursday, December 25, 2008
(WO/2008/156504) SELF-ASSEMBLED NANOPARTICLES - NANOTUBE STRUCTURES BASED ON ANTENNA CHEMISTRY OF CONDUCTIVE NANORODS
Link
[0047] The present inventors observed clear evidence that SWNT behave as antennas in the presence of light, microwaves and radio frequency fields. The present inventors also found a mechanism to produce high yields of SWNT rings and novel split-ring structures. The present inventors contemplate that these results support the idea that EM-stimulated therapies based on SWNT antennas are possible, and that tunable structures may be developed to optimize RF thermoablation therapies.
- Biblio. Data
- Description
- Claims
- National Phase
- Notices
- Documents
| Latest bibliographic data on file with the International Bureau | ||||||||||||||||
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| IPC: | B81B 3/00 (2006.01) | |||||||||||||||
| Applicants: | WILLIAM MARSH RICE UNIVERSITY [US/US]; 6100 Main Street, Houston, TX 77005 (US) (All Except US). SCHMIDT, Howard, K. [US/US]; (US) (US Only). DUQUE, Juan, G. [US/US]; (US) (US Only). PASQUALI, Matteo [IT/US]; (US) (US Only). | |||||||||||||||
| Inventors: | SCHMIDT, Howard, K.; (US). DUQUE, Juan, G.; (US). PASQUALI, Matteo; (US). | |||||||||||||||
| Agent: | SHADDOX, Robert, C.; Winstead PC, P.O. Box 50784, Dallas, TX 75201 (US). | |||||||||||||||
| Priority Data: |
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| Title: | SELF-ASSEMBLED NANOPARTICLES - NANOTUBE STRUCTURES BASED ON ANTENNA CHEMISTRY OF CONDUCTIVE NANORODS |
| Abstract: |  The present invention relates in general to nanostructured materials and processes for making same. More particularly, the present inventions relates to a nanoscale composite structure and methods for making same involving a conductive nanorod comprising a tip at each of the nanorod extrema; and a material deposited on at the least the tips, wherein the material comprises a reduced form of a redox species, wherein the redox species is adapted for electrochemical reaction with the conductive nanorod when the conductive nanorod is stimulated as an antenna by an electric field. |
[0047] The present inventors observed clear evidence that SWNT behave as antennas in the presence of light, microwaves and radio frequency fields. The present inventors also found a mechanism to produce high yields of SWNT rings and novel split-ring structures. The present inventors contemplate that these results support the idea that EM-stimulated therapies based on SWNT antennas are possible, and that tunable structures may be developed to optimize RF thermoablation therapies.
[0048] The present inventors anticipate that using SWNT, or similar elongated conductive particles, to generate free radicals in solution may be useful for a variety of applications. By way of example and not limitation, one application may be as a cytotoxic agent in healthcare. In conjunction with a targeting, or localization process, the present process may include stimulating the SWNT with body-penetratine electric fields to generate high concentrations of ROS (Reactive Oxygen Species). These may then have a toxic effect on local tissues. The fields may be localized further by using phased array electro-magnetic sources. This field emission mediated process may be non-linearly dependent (as all field emission processes, described by Fowler-Nordheim i-v curves are) on the applied field and the length of the antennas (length of SWNT). Further the present inventors expect that controlled precipitation/bundling of SWNT (by targeting multiple SWNT to a given target cell) may 'construct' antennae long enough to produce ROS, while individual SWNT may remain essentially inert under electric stimulation. By one or a combination of these means, the present process and nanostructured materials may readily achieve a very selective agent for destroying undesirable tissues, e.g. cancer, perhaps even at the level of individual cells. This may tend to be more desirable than the generalized cytotoxins or radiation-based treatments commonly used today.
Monday, June 2, 2008
(WO/2008/063683) ELECTROMAGNETIC HEATING OF SINGLE WALLED CARBON NANOTUBES IN AQUEOUS SOLUTIONS AND BIOLOGICAL SYSTEMS
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| IPC: | C01B 31/02 (2006.01), A61B 18/12 (2006.01), B01J 19/12 (2006.01) | |||||||||||||||
| Applicants: | WILLIAM MARSH RICE UNIVERSITY [US/US]; 6100 Main Street, Houston, TX 77005 (US) (All Except US). MAREK, Irene, M. [US/US]; 3 Stagestop Circle, Houston, TX 77024 (US) (US Only). SCHMIDT, Howard, K. [US/US]; 20702 Bradford Creek Court, Cypress, TX 77433 (US) (US Only). KITTRELL, W., Carter [US/US]; 2408 N. Braeswood, No. 315, Houston, TX 77030 (US) (US Only). HAUGE, Robert, H. [US/US]; 4031 Turnberry Circle, Houston, TX 77025 (US) (US Only). CHERUKURI, Paul [US/US]; 3800 County Road 94, No. 4304, Mandell, TX 77578 (US) (US Only). MOORE, Valerie, C. [US/US]; 2255 Braeswood Park Drive, No. 139, Houston, TX 77030 (US) (US Only). | |||||||||||||||
| Inventors: | SMALLEY, Richard, E.. MAREK, Irene, M. [US/US]; 3 Stagestop Circle, Houston, TX 77024 (US). SCHMIDT, Howard, K. [US/US]; 20702 Bradford Creek Court, Cypress, TX 77433 (US). KITTRELL, W., Carter [US/US]; 2408 N. Braeswood, No. 315, Houston, TX 77030 (US). HAUGE, Robert, H. [US/US]; 4031 Turnberry Circle, Houston, TX 77025 (US). CHERUKURI, Paul [US/US]; 3800 County Road 94, No. 4304, Mandell, TX 77578 (US). MOORE, Valerie, C. [US/US]; 2255 Braeswood Park Drive, No. 139, Houston, TX 77030 (US). | |||||||||||||||
| Agent: | SHADDOX, Robert, C.; Winstead P.C., P.O. Box 50784, Dallas, TX 75201 (US). | |||||||||||||||
| Priority Data: |
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| Title: | ELECTROMAGNETIC HEATING OF SINGLE WALLED CARBON NANOTUBES IN AQUEOUS SOLUTIONS AND BIOLOGICAL SYSTEMS |
| Abstract: | Disclosed herein is a new application of carbon nanotubes for biological environments. In various embodiments, electromagnetic field coupling of carbon nanotubes induces a local deposition of radio frequency (RF) energy along the nanotube and imparting the capability of RF ablation that can be used to target certain cells, tissues, and/or the like. |
[0017] In general, various embodiments of the present invention generally relate to methods and systems for the heating a target, such as at least one nanotube wherein the at least one nanotube targets a desired at least one virus, at least one cell, at least one tissue, at least one retrovirus, at least one bacteria, at least one fungus, or component thereof, and/or the like. In an embodiment, a nanotube is injected about the target and radio frequency (RF) radiation is directed at or about the nanotube such that the nanotube is heated, hi various embodiments, the nanotube is heated to a temperature sufficient to kill the target. In alternate embodiment, the nanotube is heated to a temperature sufficient to modify the target, hi alternate embodiment, the nanotube is heated to a temperature sufficient to ablate the target. In general, the sufficient temperature can be any temperature capable of performing the required task.
1. A method of treating a target tissue comprising the steps of: a. dispersing at least one nanotube in a solution; b. injecting said solution into a medium containing a target; and, c. applying radio frequency (RF) radiation towards said at least one tube for a sufficient time to at least one of kill said target, ablate said target, modify said target, and/or the like.
Source
Kinda reminds me of Kanzius and his RF treatments for cancer using metals introduced into the cancer cells. He also is involved with CNTs as well but this looks to be the sole property of Rice from this filing. However Kanzius noted in the audio segment in this post that carbon nanotubes are a bit new and not FDA approved for anything in the human body [and suspect as well (asbestos, mesothelioma) - my thoughts!] and as gold nanoparticles have FDA approval already for other uses - Kanzius and his group will employ gold particles in trials to be attached or attracted to the cancer cells whereupon the RF field will heat these and kill the cancer cells.
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