| Patent application number | Description | Published |
|---|
| 20080269486 | Reconfigurable molecules and molecular switches, sensors, and dyes employing the same - Various embodiment of the present invention are directed to organic molecules that are reconfigurable under application of an external electric field. One organic molecule embodiment of the present invention has the structure: | 10-30-2008 |
| 20090002701 | Electric-field-enhancement structure and detection apparatus using same - Various aspects of the present invention are directed to electric-field-enhancement structures and detection apparatuses that employ such electric-field-enhancement structures. In one aspect of the present invention, an electric-field-enhancement structure includes a substrate having a surface. The substrate is capable of supporting a planar mode having a planar-mode frequency. A plurality of nanofeatures is associated with the surface, and each of nanofeatures exhibits a localized-surface-plasmon mode having a localized-surface-plasmon frequency approximately equal to the planar-mode frequency. | 01-01-2009 |
| 20090020892 | SELECTIVELY ALTERING A PREDETERMINED PORTION OR AN EXTERNAL MEMBER IN CONTACT WITH THE PREDETERMINED PORTION - A method for selectively altering a predetermined portion of an object or an external member in contact with the predetermined portion of the object is disclosed. The method includes selectively electrically addressing the predetermined portion, thereby locally resistive heating the predetermined portion, and exposing the object, including the predetermined portion, to the external member. | 01-22-2009 |
| 20090245718 | Optical Sensor And Method Employing Half-Core Hollow Optical Waveguide - An optical sensor, sensing system and method of sensing employ a half-core hollow optical waveguide adjacent to a surface of an optical waveguide layer of a substrate. The half-core hollow optical waveguide and the adjacent optical waveguide layer cooperatively provide both an optical path that confines and guides an optical signal and an internal hollow channel. The optical path and channel extend longitudinally along a hollow core of the half-core hollow optical waveguide. The system further includes an optical source at an input of the optical path and an optical detector at an output of the optical path. A spectroscopic interaction between an analyte material that is introduced into the channel and an optical signal propagating along the optical path determines a characteristic of the analyte material. | 10-01-2009 |
| 20090274874 | Photonic Device And Method For Forming Nano-Structures - A photonic device includes a substrate and at least one molecularly assembled or atomic layer deposited nano-structure defined on the substrate. The nano-structure has a controlled resolution less than or equal to 100 nm. | 11-05-2009 |
| 20100020327 | Plasmonic Conveyor Apparatus, System And Method - A plasmonic conveyor, system and method of plasmonic conveyance employ a surface plasmon that is controllably moved on a surface of a plasmonic element. The conveyor includes a first plasmonic element and a second plasmonic element that individually supports a respective surface plasmon. The conveyor further includes a controller that provides controlled movement of a location of the respective surface plasmon on a surface of the plasmonic element. The controlled movement facilitates translocation of an analyte particle around a periphery of the respective plasmonic element using a high field region of the respective surface plasmon. The system includes the conveyor and an excitation signal source that provides an excitation signal having one or both of a polarization and a frequency that are controllably variable. The method includes exciting a surface plasmon with the excitation signal and moving a location of the excited surface plasmon. | 01-28-2010 |
| 20100091274 | Plasmonic electric-field concentrator arrays and systems for performing raman spectroscopy - Various embodiments of the present invention relate to plasmonic electric-field concentrators and to systems incorporating the plasmonic electric-field concentrators to perform Raman spectroscopy. In one aspect, a plasmonic electric-field concentrator comprises two or more large features, and a relatively small feature similar in shape to large features positioned adjacent to the two or more large features. The features are arranged so that when light of an appropriate wavelength is incident on the features, surface plasmon polaritons form on the outer surfaces of the features. The surface plasmon polaritons have associated electric fields extending perpendicular to the surfaces of the features. The electric fields are concentrated in the space between features forming an electric field hot spot that enhances Raman scattered light emitted from an analyte proximate to or absorbed on the features. | 04-15-2010 |
| 20100109101 | Method of Positioning Catalyst Nanoparticle and Nanowire-Based Device Employing Same - A method of positioning a catalyst nanoparticle that facilitates nanowire growth for nanowire-based device fabrication employs a structure having a vertical sidewall formed on a substrate. The methods include forming the structure, forming a targeted region in a surface of either the structure or the substrate, and forming a catalyst nanoparticle in the targeted region using one of a variety of techniques. The techniques control the position of the catalyst nanoparticle for subsequent nanowire growth. A resonant sensor system includes a nanowire-based resonant sensor and means for accessing the nanowire. The sensor includes an electrode and a nanowire resonator. The electrode is electrically isolated from the substrate. One or more of the substrate is electrically conductive, the nanowire resonator is electrically conductive, and the sensor further comprises another electrode. The nanowire resonator responds to an environmental change by displaying a change in oscillatory behavior. | 05-06-2010 |
| 20100253940 | STRUCTURE FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - A structure for surface enhanced Raman spectroscopy is disclosed herein. A substrate has a stack configured vertically thereon. The stack encompasses at least two metal layers and at least one dielectric layer therebetween. Each layer of the stack has a controlled thickness, and each of the at least two metal layers is configured to exhibit a predetermined characteristic of plasmonic resonance. | 10-07-2010 |
| 20100321685 | TYPE SELECTIVE AND POLARIZATION SELECTIVE DEVICE FOR RAMAN SPECTROSCOPY - A type and polarization selective device for Raman spectroscopy includes a set of at least two antennas and a gap at their intersection. First antenna geometry is such that it is configured to resonate, for first or second (different from the first) polarization, at a predetermined stimulation frequency of a material for which Raman scattering is to be studied, or at a Stokes or anti-Stokes frequency corresponding with the material when excited at stimulation frequency. Second antenna geometry is such that it is configured to resonate, for the other of second or first polarization, at the Stokes frequency when the first antenna is configured to resonate at the stimulation or anti-Stokes frequency, or at the anti-Stokes frequency when the first antenna is configured to resonate at the stimulation or Stokes frequency, or at the stimulation frequency when the first antenna is configured to resonate at the Stokes or anti-Stokes frequency. | 12-23-2010 |
| 20110176353 | Memristive Device Having a Porous Dopant Diffusion Element - A memristive device ( | 07-21-2011 |
| 20110188033 | MOLECULE DETECTION USING RAMAN LIGHT DETECTION - An apparatus for detecting at least one molecule using Raman light detection includes a substrate for supporting a sample containing the at least one molecule, a laser source for emitting a laser beam to cause Raman light emission from the at least one molecule, a modulating element for modulating a spatial relationship between the laser beam and the substrate at an identified frequency to cause the Raman light to be emitted from the at least one molecule at the identified frequency, at least one detector for detecting the Raman light emitted from the at least one molecule, and a post-signal processing unit configured to process the detected Raman light emission at the identified frequency to detect the at least one molecule. | 08-04-2011 |
| 20110188034 | SURFACE ENHANCED RAMAN SPECTROSCOPY EMPLOYING VIBRATING NANORODS - A surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a plurality of nanorods configured to vibrate. The apparatus includes the nanorods having tips at free ends opposite an end attached to a substrate. The tips are configured to adsorb an analyte and to vibrate at a vibration frequency. The apparatus further includes a vibration source configured to vibrate the free ends of the nanorods at the vibration frequency in a back-and-forth motion. Vibration of the nanorods is configured to facilitate detection of a Raman scattering signal emitted by the analyte adsorbed on the nanorod tips. The system further includes a synchronous detector configured to receive the Raman signal and to be gated cooperatively with the vibration of the nanorods. The method includes inducing a vibration of the nanorods, illuminating the vibrating tips to produce a Raman signal, and detecting the Raman signal using the detector. | 08-04-2011 |
| 20110188035 | VIBRATING TIP SURFACE ENHANCED RAMAN SPECTROSCOPY - A vibrating tip surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a nano-needle configured to vibrate. The apparatus includes the nano-needle with a substantially sharp tip at a free end opposite an end attached to a substrate. The tip is configured to adsorb an analyte. The apparatus further includes a vibration source configured to provide an alternating current (AC) electric field that induces a vibration of the free end and the tip of the nano-needle. Vibration of the nano-needle under the influence of the AC electric field facilitates detection of a Raman scattering signal from the analyte adsorbed on the nano-needle tip. The system further includes a synchronous detector configured to be gated cooperatively with the vibration of the nano-needle. The method includes inducing the vibration, illuminating the vibrating tip to produce a Raman signal, and detecting the Raman signal using the detector. | 08-04-2011 |
| 20110227031 | Memristor Devices Configured to Control Bubble Formation - Various embodiments of the present invention are direct to nanoscale, reconfigurable, two-terminal memristor devices. In one aspect, a device ( | 09-22-2011 |
| 20110253966 | IONIC-MODULATED DOPANT PROFILE CONTROL IN NANOSCALE SWITCHING DEVICES - A nanoscale switching device is provided, comprising: a first electrode of a nanoscale width; a second electrode of a nanoscale width; an active region disposed between the first and second electrodes, the active region having at least one non-conducting layer comprising an electronically semiconducting or nominally insulating and a weak ionic conductor switching material capable of carrying a species of dopants and transporting the dopants under an electric field; and a source layer interposed between the first electrode and the second electrode and comprising a highly reactive and highly mobile ionic species that reacts with a component in the switching material to create dopants that are capable of drifting through the non-conducting layer under an electric field, thereby controlling dopant profile by ionic modulation. A crossbar array comprising a plurality of the nanoscale switching devices is also provided, along with a process for making at least one nanoscale switching device. | 10-20-2011 |
| 20110266605 | Memristive Transistor Memory - A memory device ( | 11-03-2011 |
| 20110267171 | SENSOR-LOCATION SYSTEM FOR LOCATING A SENSOR IN A TRACT COVERED BY AN EARTH-BASED SENSOR NETWORK - A sensor-location system for locating sensors in a tract covered by an earth-based sensor network. The sensor-location system includes at least one sensor-identification device, and at least one sensor locator. The sensor-identification device is affixed to a respective sensor in the earth-based sensor network. The sensor locator is configured for use from on board of an aircraft. In addition, the sensor locator is configured to acquire geographic-location data of said sensor including an identifying signature from the sensor-identification device of the sensor in the tract covered by the earth-based sensor network. | 11-03-2011 |
| 20110267607 | ENHANCING SIGNALS IN SURFACE ENHANCED RAMAN SPECTROSCOPY (SERS) - An integrated device for enhancing signals in Surface Enhanced Raman Spectroscopy (SERS). The integrated device comprising an array of nanostructures comprising a material, wherein the material is configured to allow light to pass through. The integrated device also comprising SERS active nanoparticles disposed on at least portion of the array of nanostructures and a mirror integrated below a base of the array of nanostructures. The mirror is configured to reflect light passing through the material into the array of nanostructures. | 11-03-2011 |
| 20110267608 | TUNABLE APPARATUS FOR PERFORMING SERS - A tunable apparatus for performing Surface Enhanced Raman Spectroscopy (SERS) includes a deformable layer and a plurality of SERS-active nanoparticles disposed at one or more locations on the deformable layer, wherein the one or more locations are configured to be illuminated with light of a pump wavelength to cause Raman excitation light to interact with the nanoparticles and produce enhanced Raman scattered light from molecules located in close proximity to the nanoparticles. In addition, a morphology of the deformable layer is configured to be controllably varied to modify an intensity of the Raman scattered light produced from the molecules. | 11-03-2011 |
| 20110267609 | APPARATUS FOR PERFORMING SERS - An apparatus for performing Surface Enhanced Raman Spectroscopy (SERS) includes a reflective layer positioned above the substrate, a plurality of tapered nanowires disposed above the reflective layer, each of the plurality of tapered nanowires having a tapered end directed away from the reflective layer. | 11-03-2011 |
| 20110267610 | COMPACT SENSOR SYSTEM - A compact sensor system comprising: an analysis cell configured for photon-matter interaction, where photons are received from a light source; and an integrated-optical spectral analyzer configured for identifying a set of frequencies, the integrated-optical spectral analyzer comprising: a waveguide coupled with the analysis cell, the waveguide configured for propagating a set of frequencies through the waveguide; one or more ring resonators coupled with the waveguide, the one or more ring resonators comprising a predetermined bandwidth and configured for capturing the set of frequencies corresponding to frequencies within the predetermined bandwidth; and one or more frequency detectors coupled with the one or more tunable ring resonators, the one or more frequency detectors configured for generating electrical signals that identify each of the set of frequencies. | 11-03-2011 |
| 20110267611 | SCATTERING SPECTROSCOPY APPARATUS AND METHOD EMPLOYING A GUIDED MODE RESONANCE (GMR) GRATING - A scattering spectroscopy apparatus, system and method employ guided mode resonance (GMR) and a GMR grating. The apparatus includes a GMR grating having a subwavelength grating, and an optical detector configured to receive a portion of a scattered signal produced by an interaction between an excitation signal and an analyte associated with a surface of the GMR grating. A propagation direction of the received portion of the scattered signal is substantially different from a propagation direction of a GMR-coupled portion of the excitation signal within the GMR grating. The system includes the apparatus and an optical source. The method includes exciting a GMR in a GMR grating, interacting a GMR-coupled portion of the excitation signal with an analyte to produce a scattered signal and detecting a portion of the scattered signal. | 11-03-2011 |
| 20110317160 | BROAD BAND STRUCTURES FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - Broad band structures for surface enhanced Raman spectroscopy are disclosed herein. Each embodiment of the structure is made up of a metal layer, and a dielectric layer established on at least a portion of the metal layer. The dielectric layer has a controlled thickness that varies from at least one portion of the dielectric layer to at least another portion of the dielectric layer. Nanostructures are established on the dielectric layer at least at the portion and the other portion, the nanostructures thus being configured to exhibit variable plasmon resonances. | 12-29-2011 |
| 20120013902 | MULTI-WAVELENGTH RAMAN LIGHT DETECTION FOR DETECTING A SPECIES - An apparatus for detecting at least one species using Raman light detection includes at least one laser source for illuminating a sample containing the at least one species. The apparatus also includes a modulating element for modulating a spatial relationship between the sample and the light beams to cause relative positions of the sample and the light beams to be oscillated, in which Raman light at differing intensity levels are configured to be emitted from the at least one species based upon the different wavelengths of the light beams illuminating the sample. The apparatus also includes a Raman light detector and a post-signal processing unit configured to detect the at least one species. | 01-19-2012 |
| 20120013903 | NANOWIRE LIGHT CONCENTRATORS FOR PERFORMING RAMAN SPECTROSCOPY - Embodiments of the present invention are directed to systems for performing surface-enhanced Raman spectroscopy. In one embodiment, a system ( | 01-19-2012 |
| 20120026493 | GRATING FOR MULTIPLE DISCRETE WAVELENGTHS OF RAMAN SCATTERING - Systems and methods employ a layer having a pattern that provides multiple discrete guided mode resonances for respective couplings of separated wavelengths into the layer. Further, a structure including features shaped to enhance Raman scattering to produce light of the resonant wavelengths can be employed with the patterned layer. | 02-02-2012 |
| 20120074378 | MEMORY ELEMENT HAVING ELASTICALLY DEFORMABLE ACTIVE REGION - A memory element is provided that includes a first electrode, a second electrode, and an active region disposed between the first electrode and the second electrode, wherein at least a portion of the active region comprises an elastically deformable material, and wherein deformation of the elastically deformable material causes said memory element to change from a lower conductive state to a higher conductive state. A multilayer structure also is provided that includes a base and a multilayer circuit disposed above the base, where the multilayer circuit includes at least of the memory elements including the elastically deformable material. | 03-29-2012 |
| 20120092660 | APPARATUS FOR PERFORMING SERS - An apparatus for performing SERS includes a substrate and flexible nano-fingers, each of the nano-fingers having a first end attached to the substrate, a free second end, and a body portion extending between the first end and the second end, in which the nano-fingers are arranged in an array on the substrate. The apparatus also includes an active material layer disposed on each of the second ends of the plurality of nano-fingers, in which the nano-fingers are to be in a substantially collapsed state in which the active layers on at least two of the nano-fingers contact each other under dominant attractive forces between the plurality of nano-fingers and in which the active material layers are to repel each other when the active material layers are electrostatically charged. | 04-19-2012 |
| 20120105840 | SENSING DEVICE AND METHOD PRODUCING A RAMAN SIGNAL - A sensing device that produces a Raman signal includes micro-rods or nano-rods arranged on a substrate in a two-dimensional (2D) array, each of the rods having a length in a single row being substantially the same, with the rod length of each row being different from the rod length of each other row. Each row of rods has a respective resonant vibration frequency that varies from row to row. A source of vibration energy, operatively connected to the substrate, excites vibration in each of the rods such that a responding row resonates when an exciting frequency approaches the resonant vibration frequency of the responding row. A method includes exposing the 2D array to a light source and analyzing Raman scattering at each rod of the 2D array to render a Raman map. | 05-03-2012 |
| 20120107569 | PREVENTING ADHESION BETWEEN NANOSTRUCTURES - A device for Surface Enhanced Raman Scattering (SERS). The device includes a plurality of nanostructures protruding from a surface of a substrate, a SERS active metal disposed on a portion of said plurality of nanostructures, and a low friction film disposed over the plurality of nanostructures and the SERS active metal. The low friction film is to prevent adhesion between the plurality of nanostructures. | 05-03-2012 |
| 20120107948 | LUMINESCENT CHEMICAL SENSOR INTEGRATED WITH AT LEAST ONE MOLECULAR TRAP - A luminescent chemical sensor integrated with at least one molecular trap. The luminescent chemical sensor includes at least one molecular trap and at least one metallic-nanofinger device integrated with at least one molecular trap. The molecular trap includes a plurality of electrodes that trap at least one analyte molecule. The metallic-nanofinger device includes a substrate, and a plurality of nanofingers coupled with the substrate. A nanofinger of the plurality includes a flexible column, and a metallic cap coupled to an apex of the flexible column. At least the nanofinger and a second nanofinger of the plurality of nanofingers are to self-arrange into a close-packed configuration with the analyte molecule. A method for using, and a chemical-analysis apparatus including the luminescent chemical sensor are also provided. | 05-03-2012 |
| 20120113419 | NANOWIRE-BASED SYSTEMS FOR PERFORMING RAMAN SPECTROSCOPY - Embodiments of the present invention are directed to nanowire-based systems for performing surface-enhanced Raman spectroscopy. In one embodiment, a system comprises a substrate ( | 05-10-2012 |
| 20120113420 | ELECTRICALLY DRIVEN DEVICES FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - An electrically driven device ( | 05-10-2012 |
| 20120119315 | SENSING DEVICES - A sensing device ( | 05-17-2012 |
| 20120154791 | SURFACE ENHANCED RAMAN SPECTROSCOPY SYSTEM - A surface enhanced Raman spectroscopy system includes a surface enhanced Raman spectroscopy substrate and a laser source configured to emit light within a spectrum of wavelengths toward a predetermined species on or near the surface enhanced Raman spectroscopy substrate. The system further includes a set of filters positioned to be in optical communication with light scattered after the laser light interacts with the predetermined species. Each of the filters in the set is respectively configured to pass scattered light within a different predetermined narrow band of wavelengths. The system also includes a plurality of photodetectors, where each photodetector is positioned adjacent to a respective one of the filters in the set and is configured to output a signal if the scattered light passes through the respective one of the filters. The set of filters is targeted for detection of characteristic peaks of the predetermined species. | 06-21-2012 |
| 20120188539 | NANOROD SURFACE ENHANCED RAMAN SPECTROSCOPY APPARATUS, SYSTEM AND METHOD - A nanorod surface enhanced Raman spectroscopy (SERS) apparatus, system and method of SERS using nanorods that are activated with a key. The nanorod SERS apparatus includes a plurality of nanorods, an activator to move the nanorods from an inactive to an active configuration and the key to trigger the activator. The nanorod SERS system further includes a Raman signal detector and an illumination source. The method of SERS using nanorods includes activating a plurality of nanorods with the key, illuminating the activated plurality of nanorods, and detecting a Raman scattering signal when the nanorods are in the active configuration. | 07-26-2012 |
| 20120188540 | RECONFIGURABLE SURFACE ENHANCED RAMAN SPECTROSCOPY APPARATUS, SYSTEM AND METHOD - A reconfigurable surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a stimulus responsive material to move nanorods of a plurality between inactive and active configurations. The apparatus includes the plurality of nanorods and the stimulus responsive material. The system further includes a Raman signal detector. The method of reconfigurable SERS includes providing the plurality of nanorods and exposing the stimulus responsive material to a stimulus. The exposure causes a change in one or more of a size, a shape and a volume of the stimulus responsive material that moves the nanorods between the inactive and active configurations. The active configuration facilitates one or both of production and detection of a Raman scattering signal emitted by the analyte. | 07-26-2012 |
| 20120200851 | RAMAN SPECTROSCOPY LIGHT AMPLIFYING STRUCTURE - A light amplifying structure | 08-09-2012 |
| 20120236298 | TUNABLE APPARATUS FOR PERFORMING SERS - A tunable apparatus for performing Surface Enhanced Raman Spectroscopy (SERS) includes a deformable substrate and a plurality of SERS-active nanoparticles disposed at a plurality of locations on the deformable substrate. The plurality of SERS-active nanoparticles are to enhance Raman scattered light emission from an analyte molecule located in close proximity to the SERS-active nanoparticles. In addition, the deformable substrate is to be deformed to vary distances between the SERS-active nanoparticles, in which varying distances between the SERS-active nanoparticles varies enhancement of an intensity of Raman scattered light emission from the analyte molecule. | 09-20-2012 |
| 20120281212 | SELF-COLLECTING SERS SUBSTRATE - A self-collecting substrate ( | 11-08-2012 |
| 20120281729 | ENVIRONMENT SENSITIVE DEVICES - An environment sensitive device is disclosed. The device includes a substrate, a three-dimensional structure established on the substrate, a first coating established on a first portion of the three-dimensional structure, and a second coating established on a second portion of the three-dimensional structure. The first and second coatings contain different materials that are configured to respond differently when exposed to a predetermined external stimulus. | 11-08-2012 |
| 20120300202 | AUTONOMOUS LIGHT AMPLIFYING DEVICE FOR SURFACE ENHANCED RAMAN SPECTROSCOPY - An autonomous light amplifying device for surface enhanced Raman spectroscopy includes a dielectric layer, at least one laser cavity defined by at least one light confining mechanism formed in the dielectric layer, at least one nano-antenna established on the dielectric layer in proximity to the at least one laser cavity, and a gain region positioned in the dielectric layer or adjacent to the dielectric layer. | 11-29-2012 |
| 20130027698 | SELF-ARRANGING, LUMINESCENCE-ENHANCEMENT DEVICE FOR SURFACE-ENHANCED LUMINESCENCE - A self-arranging, luminescence-enhancement device | 01-31-2013 |
| 20130037773 | IONIC DEVICES WITH INTERACTING SPECIES - An ionic device includes a layer ( | 02-14-2013 |
| 20130040862 | MULTI-PILLAR STRUCTURE FOR MOLECULAR ANALYSIS - A multi-pillar structure for molecular analysis is provided. The structure comprises at least two nanopoles, each nanopole attached at one end to a substrate and freely movable along its length. The opposite ends of the at least two nanopoles are each capable of movement toward each other to trap at least one analyte molecule at their opposite ends. Each nanopole is coated with a metal coating. An array of such multi-pillar structures is also provided. A method for preparing the multi-pillar structure is further provided. | 02-14-2013 |
| 20130120748 | OPTICAL FIBER SURFACE ENHANCED RAMAN SPECTROSCOPY (SERS) PROBE - A surface enhanced Raman spectroscopy (SERS) probe apparatus and a method of SERS probing employ Raman-active surfaces of a plurality of nanoscale field concentrator (NFC) structures at a terminal end of an optical fiber. The SERS probe apparatus includes an optical fiber having an optical path and a terminal end that terminates the optical path. The SERS probe apparatus further includes a plurality of NFC structures and nanoparticles on surfaces of the plurality of NFC structures. First ends of the NFC structures are adjacent to the terminal end of optical fiber. The nanoparticles are Raman active to an analyte. | 05-16-2013 |
| 20130195721 | METALLIC-NANOFINGER DEVICE FOR CHEMICAL SENSING - A metallic-nanofinger device for chemical sensing. The device includes a substrate, and a plurality of nanofingers. A nanofinger includes a flexible column, and a metallic cap coupled to an apex of the flexible column. At least the nanofinger and a second nanofinger are to self-arrange into a close-packed configuration with at least one analyte molecule disposed between at least the metallic cap and a second metallic cap of respective nanofinger and second nanofinger. A morphology of the metallic cap is to generate a shifted plasmonic-resonance peak associated with amplified luminescence from the analyte molecule. A coating encapsulating the metallic cap to respond upon exposure to a liquid, and a chemical-sensing chip including the metallic-nanofinger device are also provided. | 08-01-2013 |
| 20130217143 | CHEMICAL-ANALYSIS DEVICE INTEGRATED WITH METALLIC-NANOFINGER DEVICE FOR CHEMICAL SENSING - A chemical-analysis device integrated with a metallic-nanofinger device for chemical sensing. The chemical-analysis device includes a metallic-nanofinger device, and a platform. The metallic-nanofinger device includes a substrate, and a plurality of nanofingers coupled with the substrate. A nanofinger of the plurality includes a flexible column, and a metallic cap coupled to an apex of the flexible column. At least the nanofinger and a second nanofinger of the plurality of nanofingers are to self-arrange into a close-packed configuration with at least one analyte molecule. A morphology of the metallic cap is to generate a shifted plasmonic-resonance peak associated with amplified luminescence from the analyte molecule. A method for using, and a chemical-analysis apparatus including the chemical-analysis device are also provided. | 08-22-2013 |
| 20140086806 | SYSTEMS AND METHODS FOR SYNTHESIZING MOLECULES ON SUBSTRATES - Systems and methods for synthesizing molecules on a substrate surface are disclosed. In one aspect, a molecule synthesizing system includes a crossbar array with a planar arrangement of crossbar junctions. Each crossbar junction is independently switchable between a high-resistance state and a low-resistance state. The system also includes a slab with a first surface and a second surface parallel to the first surface. The second surface is disposed on the crossbar array. A current applied to a crossbar junction in a high-resistance state creates an adjacent heated site on the first surface for attaching thermally reactive molecules for molecular synthesis. | 03-27-2014 |
| 20140176942 | SURFACE ENHANCED RAMAN SPECTROSCOPY EMPLOYING A NANOROD IN A SURFACE INDENTATION - A surface enhanced Raman spectroscopy (SERS) apparatus employs a nanorod in an indentation in a surface of a substrate. The SERS apparatus includes the nanorod having a tip at a free end opposite to an end of the nanorod that is supported by the substrate indentation. The indentation has a tapered profile and supports the nanorod at a bottom of the indentation. The free end of the nanorod extends away from the indentation bottom. The SERS apparatus further includes a Raman-active material at a surface of one or both of the nanorod and the indentation. The indentation and the nanorod facilitate one or both of production and detection of a Raman scattering signal emitted by an analyte in a vicinity of the nanorod and indentation. | 06-26-2014 |
| 20140211195 | PLASMON RESONANCE BASED STRAIN GAUGE - A strain gauge or other device may include a deformable medium and discrete plasmon supporting structures arranged to create one or more plasmon resonances that change with deformation of the medium and provide the device with an optical characteristic that indicates the deformation of the medium. | 07-31-2014 |
