Patent application number | Description | Published |
20100000882 | Detection of Explosive Materials - Among other things, methods and systems are described for detecting chemicals including explosive materials. For example, a system for detecting materials includes a sample gathering unit designed to obtain a portion of a target material to be tested. In addition, the system includes a sample holding unit that has a first end designed to attach to the sample gathering unit and form a housing that retains at least the obtained portion of the target material. Further, a reagent holding unit is included and designed to attach to a second end of the sample holding unit. The reagent holding unit is designed to introduce the reagent into the formed housing to mix with the obtained target material and start a chemical reaction. | 01-07-2010 |
20100193377 | Electrochemical Detection of Silica Species - A systems and apparatus for measuring non-electroactive materials in liquids using electrochemical detection. A first electrical activity of a electroactive material is detected in absence of a target non-electroactive material (Step | 08-05-2010 |
20110284395 | Simultaneous Electrochemical Detection of Multiple Heavy Metal Ions in Liquid - Among others, techniques and systems are disclosed for detecting trace levels of heavy metal ions in a sample liquid. A voltage is applied to a sample liquid that includes metal complexes. A current signal associated with the metal complexes is measured. The measured current signal is processed to simultaneously detect a presence of two or more metal ions associated with the metal complexes. | 11-24-2011 |
20120211467 | NANOMOTOR-BASED PATTERNING OF SURFACE MICROSTRUCTURES - Among other things, methods, systems and apparatus are described for implementing nanomotor-based micro- and nanofabrication. In one aspect, a method of fabricating nanoobjects comprises functionalizing a nanomotor with a reagent. The method also includes controlling a movement of the functionalized nanomotor in a solution containing material to react with the reagent to induce a localized deposition or precipitation of a product onto a surface of a substrate or etching of the substrate. | 08-23-2012 |
20130065257 | ENZYME-LOGIC BIOSENSING - Techniques, apparatus and systems are disclosed for implementing enzyme-logic based diagnosis that uses patterns of multiple markers and biochemical processing of the signal information for reliably identifying cardiac abnormalities and providing a final digital binary answer. In one aspect, a biochemical logic sensing system includes a network of enzyme-biocatalyzed logic gates adapted to receive biomarker input signals and perform an enzyme-biocatalyzed reaction resembling a Boolean logic operation using the received biomarker input signals to generate an output signal of the enzyme-biocatalyzed reaction. A signal processing unit is connected to the network of enzyme-biocatalyzed logic gates. The signal processing unit processes the generated output signal of the enzyme-biocatalyzed reaction and generates a digital binary output having a value of zero or one. The generated digital binary output indicates a type of an injury. | 03-14-2013 |
20130084569 | NANOMOTORS AND MOTION-BASED DETECTION OF BIOMOLECULAR INTERACTIONS - Techniques and systems are disclosed for detecting biomolecular interactions based on the motion of nanomotors. In one aspect, a method of detecting biomolecular interactions based on a motion of a nanomachine includes functionalizing a nanomachine with a capture probe adapted to interact with biological targets; and detecting a presence of the biological targets in an environment based on a motion of the nanomachine. | 04-04-2013 |
20130144131 | TEXTILE-BASED PRINTABLE ELECTRODES FOR ELECTROCHEMICAL SENSING - Techniques and systems are disclosed for implementing textile-based screen-printed amperometric or potentiometric sensors. The chemical sensor can include carbon based electrodes to detect at least one of NADH, hydrogen peroxide, potassium ferrocyanide, TNT or DNT, in liquid or vapor phase. In one application, underwater presence of chemicals such as heavy metals and explosives is detected using the textile-based sensors. | 06-06-2013 |
20130241344 | FUEL-FREE NANOWIRE MOTORS - Techniques and systems are disclosed for locomoting fuel-free nanomotors in a fluid. In one aspect of the disclosed technology, a system for locomoting fuel-free nanomotors can include an electrically-driven nanowire diode formed of two or more segments of different electrically conducting materials, a fluid container, and a mechanism that produces an electric field to drive the nanowire diode to locomote in the fluid. In another aspect, a system for locomoting fuel-free nanomotors can include a magnetically-propelled multi-segment nanowire motor formed of a magnetic segment and a flexible joint segment, a fluid container, and a mechanism that generates and controls a magnetic field to drive the multi-segment nanowire motor to locomote in the fluid. The disclosed fuel-free nanomotors can obviate fuel requirements and can be implemented for practical in vitro and in vivo biomedical applications. | 09-19-2013 |
20140045179 | NANO/MICROSCALE VEHICLES FOR CAPTURE AND ISOLATION OF TARGET BIOMOLECULES AND LIVING ORGANISMS - Techniques, systems, devices and materials are disclosed for capturing, isolating and transporting target biomolecules and living organisms. In one aspect, a device includes a tube structured to include a large opening and a small opening that are on opposite ends of the tube, and a tube body connecting the openings and having a cross section spatially reducing in size from the large opening to the small opening, in which the tube includes a layered wall including an inner layer having a catalyst material that is reactive with a fuel fluid to produce bubbles exiting the tube from the large opening to propel the tube to move in the fuel fluid and an external layer formed of a material capable of being functionalized, and a molecular layer functionalized onto the external layer of the tube and structured to attach to a targeted molecule in the fuel fluid. | 02-13-2014 |
20140106441 | BIOAFFINITY SENSORS BASED ON SURFACE MONOLAYERS - Methods, systems, devices and materials are disclosed for implementing a bioaffinity sensor having a self-assembled monolayer interface for detection of a target molecule. In one aspect, a sensor device for detecting a target molecule includes a surface capable of attaching a thiol and a molecular monolayer formed on the surface that includes a molecular capture probe having a thiol region, a linear alkanethiol molecule having one thiol region, and a linear alkanedithiol molecule having two thiol regions, in which the molecular capture probe includes a region for receiving a target substance having a complimentary region that couples with the region of the molecular capture probe to generate a detectable signal. | 04-17-2014 |
20140162870 | MEMBRANE TEMPLATE SYNTHESIS OF MICROTUBE ENGINES - Methods, structures, devices and systems are disclosed for fabrication of microtube engines using membrane template electrodeposition. Such nanomotors operate based on bubble-induced propulsion in biological fluids and salt-rich environments. In one aspect, fabricating microengines includes depositing a polymer layer on a membrane template, depositing a conductive metal layer on the polymer layer, and dissolving the membrane template to release the multilayer microtubes. | 06-12-2014 |
20140322617 | PRINTED BIOFUEL CELLS - Methods, systems, and devices are disclosed for implementing a biofuel cell device for extracting energy from a biofuel. In one aspect, a biofuel cell device includes a substrate, an anode including a catalyst to facilitate the conversion of a fuel in a biological fluid in an oxidative process that releases electrons captured at the anode, thereby extracting energy from the fuel substance, a cathode configured on the substrate adjacent to the anode and separated from the anode by a spacing region, and a load electrically coupled to the anode and cathode via electrical interconnects to obtain the extracted energy as electrical energy. | 10-30-2014 |
20140336487 | MICRONEEDLE ARRAYS FOR BIOSENSING AND DRUG DELIVERY - Methods, structures, and systems are disclosed for biosensing and drug delivery techniques. In one aspect, â device for detecting an analyte and/or releasing a biochemical into a biological fluid can include an array of hollowed needles, in which each needle includes a protruded needle structure including an exterior wall forming a hollow interior and an opening at a terminal end of the protruded needle structure that exposes the hollow interior, and a probe inside the exterior wall to interact with one or more chemical or biological substances that come in contact with the probe via the opening to produce a probe sensing signal, and an array of wires that are coupled to probes of the array of hollowed needles, respectively, each wire being electrically conductive to transmit the probe sensing signal produced by a respective probe. | 11-13-2014 |
20150013304 | ACOUSTICALLY TRIGGERED NANO/MICRO-SCALE PROPULSION DEVICES - Techniques, devices and systems are disclosed for implementing acoustically triggered propulsion of nano- and micro-scale structures. In one aspect, an ultrasound responsive propulsion device includes a tube that includes one or more layers including an inner layer having an electrostatic surface, and an ultrasound-responsive substance coupled to the inner layer and configured to form gaseous bubbles in a fluid in response to an ultrasound pulse, in which the bubbles exit the tube to propel the tube to move in the fluid. | 01-15-2015 |