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Search Patents

Displaying 251 - 275 of 286

Advanced Nanofabrication Process for High-Precision Nanodevices

NIST Inventors
Samuel M. Stavis and Michael Gaitan
This invention introduces a nanofabrication process that enables the creation of highly complex and precise nanodevices. It enhances the ability to manipulate biomolecules and other microscopic structures. The process improves dimensional control, allowing for more intricate designs. It also
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
The NIST Compact Atomic Magnetometer 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 than one propagation direction permits longitudinal optical pumping of the

A Smarter Way to Separate and Analyze Substances

NIST Inventors
Wyatt N. Vreeland
This invention introduces a method and device for affinity gradient focusing, which directs analytes in a solution containing a pseudo-stationary phase within a channel, such as a capillary or microchannel. It establishes a steady-state spatial gradient in the retention factor of the pseudo

A Safer and More Efficient Way to Store Hydrogen for Clean Energy

NIST Inventors
Taner Yildirim and Craig Brown
This invention introduces a hydrogen fuel storage system that uses metal-organic frameworks (MOFs) to efficiently store molecular hydrogen. The MOFs are designed with a porous re-centered oxygen-type aluminum formate structure, allowing for high-density hydrogen storage. The system improves storage
Depiction of Circuit of Invention

AC and DC Bipolar Voltage Source Using Quantized Pulses

NIST Inventors
Samuel P. Benz and Charles J. Burroughs
This invention solves this problem. It is a Josephson circuit that provides accurate, stable, arbitrary waveform generation with a pre-determined frequency spectrum. It will enable the synthesis of both AC and DC bipolar waveforms, where voltage pulses of both positive and negative polarity are
Diagram showing the system and process for controlling database access.

Next Generation Access Control System and Process for Controlling Database Access

NIST Inventors
Joshua Roberts , Gopi Katwala and David Ferraiolo
Provides a universal access control layer between applications and DBMSs, following a standardized ABAC model (NGAC*) that is a) DBMS-agnostic, b) does not require modification of the DBMS software, and c) can enforce types of access policies and at a granularity not typically available in database
Chip-scale atomic magnetometers arranged in an array around a human head to detect brain magnetic fields.

Atomic Magnetometer and Method of Sensing Magnetic Fields

NIST Inventors
John Kitching and Vladislav Gerginov
NIST has made long-awaited advances in the creation of magnetometers and in detecting magnetic fields. The chip-size NIST atomic magnetometer has at least one sensor head void of extraneous metallic components, electrical contacts, or electrically conducting pathways. This novel sensor contains an

Body Cube And Process For Culturing Tissue

NIST Inventors
Mandy B. Esch, PhD
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

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 , Wenqi Zhu and Shawn Divitt
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
Displaying 251 - 275 of 286
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