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Search Patents

Displaying 226 - 250 of 257

Highly Sensitive Oxygen Sensor For Cell Culture

NIST Inventors
Samuel P. Forry
An oxygen sensor comprising an oxygen sensing compound and configured to substantially mitigate leaching of the oxygen sensing compound from the oxygen sensor to an outer surface thereof is provided. The oxygen sensor may comprise one or more layers. A first portion of the oxygen sensor is
Schematic of magnetometer/gyroscope shows layers with photodetectors on top and laser at bottom.

Compact Atomic Magnetometer and Gyroscope

NIST Inventors
John Kitching and Elizabeth Donley
An atomic magnetometer that simultaneously achieves high sensitivity, simple fabrication and small size. This design is based on a diverging (or converging) beam of light that passes through an alkali atom vapor cell and that contains a distribution of beam propagation vectors. The existence of more
Image of a spreadhsheet with some records

Next Generation Access Control System and Process for Controlling Database Access

NIST Inventors
Joshua Roberts , Gopi Katwala and David Ferraiolo
A computer-implemented method included: receiving, by an access manager, a query from a source; communicating the query from the access manager to a translator; translating the query into a next generation access control (NGAC) input; communicating the NGAC input to an NGAC engine, the NGAC engine

Atomic Vapor Cell And Making An Atomic Vapor Cell

NIST Inventors
Christopher L. Holloway , Alexandra (Aly) Artusio-Glimpse , Vladimir Aksyuk , Matt Simons and John Kitching
Research over the past ten years into atomic sensors has allowed for controlled ensembles of room temperature atoms in such a manner that we are able to develop interesting and unique devices. Beside SI traceable E-field probes, other applications range from atom-based receivers to imaging

Body Cube And Process For Culturing Tissue

NIST Inventors
Mandy Esch
This invention describes a microphysiologic body cube that holds multiple organ chips and that can be operated with near physiologic amounts of blood surrogate. The invention can be used to culture multiple tissues with near-physiologic amounts of blood surrogate within one systems. Microphysiologic

Calibration Apparatus And Calibrating A Laser Doppler Vibrometer

NIST Inventors
Michael Gaitan , Benjamin Reschovsky and Akobuije Chijioke
We have developed and demonstrated a new method to calibrate laser Doppler vibrometers (LDVs). The method uses two acousto-optic modulators to frequency shift the light from the LDV under test by a known quantity to create a synthetic velocity shift that is traceable to a time and frequency
Fiber magnetometer

Chip-Scale Atomic Magnetometer

NIST Inventors
John Kitching and Vladislav Gerginov
A magnetometer and method of use is presently disclosed. The magnetometer has at least one sensor void of extraneous metallic components, electrical contacts and electrically conducting pathways. The sensor contains an active material vapor, such as an alkali vapor, that alters at least one

Cryogenic Thermometer Based On A Two-Level System (TLS)

NIST Inventors
Michael Vissers , Jordan Wheeler and Maxime Malnou
We have invented a new type of cryogenic thermometer for use at temperature below 1 Kelvin. The device consists of a superconducting resonator with dielectric two-level systems (TLS) material deposited or naturally formed on the surface. The temperature is read out by measuring the resonance

DNA Nanotechnology-Based Biomarker Measurement Platform

NIST Inventors
Arvind Balijepalli and Jacob Majikes
We developed a new approach that utilizes the precise addressability of DNA nanotechnology constructs to allow quantitative biomolecule sensing with high sensitivity, specificity and reproducibility. Novel approaches to engineering DNA nanostructures allow the realization of tunable gain elements

Ferrocene-Bodipy: A Single Electron Transfer Activatable Fluorescent Molecular Probe

NIST Inventors
Jeremiah Woodcock and Veronika Szalai
Industrial electrochemical processes have been growing in importance for decades. However, with the need for improved efficiency in these processes comes the need for better fundamental understanding. For example, improved battery performance requires accessible, more precise metrology to aid in

High-Performance Ultaviolet Optical Elements Based On Metasurface Technology

NIST Inventors
Henri Lezec and Wenqi Zhu
Shrinking conventional optical systems to chip-scale dimensions will benefit custom applications in imaging, displaying, sensing, spectroscopy, and metrology. Towards this goal, metasurfaces — planar arrays of subwavelength electromagnetic structures that collectively mimic the functionality of

Infrared Thermal Desorption Methods And Systems

NIST Inventors
Matthew E Staymates and Thomas P. Forbes
Methods and systems are provided for infrared thermal desorbers that incorporate broad spectrum infrared radiation and thermal energy storage for high temperature desorption of trace chemicals from wipe collected samples and directly from target surfaces for chemical analysis. The systems described

Method And Apparatus For Carbon Nanotube Alignment

NIST Inventors
Jeffrey Fagan
Embodiments of the disclosure provide for machine-vision automation and parallelization to simultaneously produce globally-aligned SWCNT films from an aqueous solution using pressure-driven filtration. Feedback control enables filtration to occur with a constant flow rate that not only improves the

A Method Of Mode Identification In Photonic Resonator

NIST Inventors
Zeeshan Ahmed
We describe a method for distinguishing optical modes of a resonator based on the characterization of the temperature sensitivity of a mode’s resonance frequency and its dispersion characteristics. This method requires an interrogator (made up of a tunable laser, broadband light source, frequency

Method And Process For Tantala Integrated Nonlinear Photonics

NIST Inventors
Scott Papp , David Carlson and Kartik Srinivasan
Integrated photonics that enable nonlinear optical processes are important for numerous applications, including precision metrology; microresonator frequency comb generation; optical signal generation and processing; sensing, positioning, and navigation; and generation and manipulation of quantum

Multiplexed Amplitude Modulation Fluorometry

NIST Inventors
Anthony J. Kearsley , Gregory A Cooksey and Paul Patrone
Improving accuracy of cytometers is challenging because optical configuration, flow control methods, and calibration issues make it difficult to characterize geometric factors associated with signal collection. State-of-the-art tools only collect a small solid angle of emitted light, so that minor

Nanotube Spectrometer Array And Making A Nanotube Spectrometer Array

NIST Inventors
Ming Zheng
This invention discloses a design of an array of micron-sized spectrometer units that can measure the spectrum of incoming light in the wavelength range of 200 nm to 2000 nm, with a spatial resolution comparable to the size of a single spectrometer unit. Each spectrometer unit is composed of a set

Physiologically Stable Fluorophore For Digestion Toxicology Studies

NIST Inventors
Jeremiah Woodcock and Professor Douglas M. Fox
The diversity of materials used industrially has been increasing, as well as the demand for more renewable feed stocks. As a result, new strategies to assay the impact on the environment and human physiology is needed. Typical methods involving radioactive isotopic labeling and fluorescent labeling

Qubit Gate And Producing A Generalized Controlled-Not Quantum Gate

NIST Inventors
Adam Kaufman and Alexey Gorshkov
Electric dipoles such as Rydberg atoms and polar molecules are among the most promising candidates for building a quantum computer. We propose a protocol that uses long-range dipole-dipole interactions in these systems to quickly implement a generalized controlled-not (CNOT) quantum gate, in which

Serial Cytometry

NIST Inventors
Gregory A Cooksey , Paul Patrone and Anthony J. Kearsley
Flow cytometers can make thousands of single-cell measurements per second, but the limited ability to quantify uncertainty in individual measurements reduces their effectiveness for characterizing biomarker distributions, discriminating cell populations, and detecting rare events. To facilitate
Displaying 226 - 250 of 257