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Results 1726–1750 of 2,457

Poole-frenkel piezoconductive element and sensor

Patent • #6,771,083. A new class of highly sensitive piezoconductive strain sensor elements and sensors has been invented. The new elements function under conditions such that electrical conductivity is dominated by Poole-Frenkel transport. A substantial piezoconductive effect appears in this regime, allowing the new sensors to exhibit sensitivity to applied strain as...

Porous materials via freeze-casting of metal salt solutions

Patent • #10,086,431. Disclosed here is a method for making a nanoporous material, comprising aerosolizing a solution comprising at least one metal salt and at least one solvent to obtain an aerosol, freezing the aerosol to obtain a frozen aerosol, and drying the frozen aerosol to obtain a nanoporous metal compound material....

Porous metals from sintering of nanoparticles

Patent • #9,981,313. A method including encapsulating or capping metallic nanoparticles by a dendrimer or a polymer with binding sites for metal particless or metal ions dispersed in a fluid; modifying the fluid to disrupt the interaction of the dendrimer or polymer with the particles; and subsequently or concomitantly sintering or partially...

Porous nanoparticle supported lipid bilayer nanostructures

Patent • #8,734,816. Various exemplary embodiments provide protocell nanostructures and methods for constructing and using the protocell nanostructures. In one embodiment, the protocell nanostructures can include a core-shell structure including a porous particle core surrounded by a shell of lipid bilayer(s). The protocell can be internalized in a bioactive cell. Various cargo...

Porous polymer media

Patent • #6,472,443. Highly crosslinked monolithic porous polymer materials for chromatographic applications. By using solvent compositions that provide not only for polymerization of acrylate monomers in such a fashion that a porous polymer network is formed prior to phase separation but also for exchanging the polymerization solvent for a running buffer using...

Porphyrin coordination polymer nanospheres and nanorods

Patent • #8,324,342. A porphyrin coordination polymer nanostructure comprising a network of pyridyl porphyrin molecules and coordinating metal ions coordinatively bound through the pyridyl groups. In some embodiments, the porphyrins are metalloporphyrins. A variety of nanostructures are formed by the network polymer, including nanospheres, polygonal nanostructures, nanorods, and nanofibers, depending on a...

Porphyrin coordination polymer nanospheres and nanorods

Patent • #8,530,614. A porphyrin coordination polymer nanostructure comprising a network of pyridyl porphyrin molecules and coordinating metal ions coordinatively bound through the pyridyl groups. In some embodiments, the porphyrins are metalloporphyrins. A variety of nanostructures are formed by the network polymer, including nanospheres, polygonal nanostructures, nanorods, and nanofibers, depending on a...

Portable apparatus for separating sample and detecting target analytes

Patent • #7,452,507. Portable devices and methods for determining the presence of a target analyte using a portable device are provided. The portable device is preferably hand-held. A sample is injected to the portable device. A microfluidic separation is performed within the portable device and at least one separated component detected by...

Portable Gas Leak Detection System

Featured Opportunity • Sandia National Laboratories has developed imaging systems for the detection, quantification and monitoring of gaseous leaks. Using the backscatter absorption gas imaging (BAGI) technique, these devices can remotely produce real-time video images of gases invisible to the human eye. This simplifies the leak-detection process and allows a broad area to...

Portable modular detection system

Patent • #7,602,307. Disclosed herein are portable and modular detection devices and systems for detecting electromagnetic radiation, such as fluorescence, from an analyte which comprises at least one optical element removably attached to at least one alignment rail. Also disclosed are modular detection devices and systems having an integrated lock-in amplifier and...

Portable outgas detection apparatus

Patent • #6,734,422. A portable device for detecting surface outgas contaminants of an article includes: (i) a portable housing that has a chamber which is in communication with a port that is adapted to be sealably attached to a surface of the article; (ii) a mass spectrometer that is coupled to the...

Portable positional scanning lane

Patent • #11827498. A positional lane scanner and method therefor includes a positional lane cargo scanning structure having a first frame portion, a second frame portion, and a top frame portion connected to define a passage lane for a cargo vessel. The first and second frame portions are located on opposite sides...

Portable vapor diffusion coefficient meter

Patent • #7,229,593. An apparatus for measuring the effective vapor diffusion coefficient of a test vapor diffusing through a sample of porous media contained within a test chamber. A chemical sensor measures the time-varying concentration of vapor that has diffused a known distance through the porous media. A data processor contained within...

Powder dispersion system

Patent • #8,020,726. A powder dispersion method and apparatus comprising an air eductor and a powder dispensing syringe inserted into a suction connection of the air eductor.

Powder Dispersion System

Featured Opportunity • A powder dispersion system that outputs up to 60 grams per syringe and achieves dispersion rates of at least 170 mg per minute Research and development settings sometimes require large-scale powder dispersion for experimental purposes. The best existing commercially available aerosol powder dispersion devices are small-scale powder disperser, fluidized bed...

Power meter ratio method of stabilizing a resonant modulator

Patent • #9,467,233. Methods and systems for stabilizing a resonant modulator include receiving pre-modulation and post-modulation portions of a carrier signal, determining the average power from these portions, comparing an average input power to the average output power, and operating a heater coupled to the modulator based on the comparison. One system...

Power packet networks for wave energy converter arrays

Patent • #11725622. One of the biggest challenges for all renewable energy sources (RES) is that they are variable power generators which will require reactive power or energy storage systems (ESS) to provide reliable power quality (ideally power factor of one) at the power grid generation side. The present invention is directed...

Power selective optical filter devices and optical systems using same

Patent • #8,854,713. In an embodiment, a power selective optical filter device includes an input polarizer for selectively transmitting an input signal. The device includes a wave-plate structure positioned to receive the input signal, which includes at least one substantially zero-order, zero-wave plate. The zero-order, zero-wave plate is configured to alter a...

Power spectrum analysis for defect screening in integrated circuit devices

Patent • #9,188,622. A device sample is screened for defects using its power spectrum in response to a dynamic stimulus. The device sample receives a time-varying electrical signal. The power spectrum of the device sample is measured at one of the pins of the device sample. A defect in the device sample...
Results 1726–1750 of 2,457