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Search Patents

Displaying 226 - 250 of 271

Authentication Article and Process for Making Same

NIST Inventors
Yaw S. Obeng and Joseph J. Kopanski
An authentication article includes: a substrate including: a first surface; a second surface disposed laterally to the first surface and at a depth below the first surface; and a plurality of indentations including the depth at the second surface of the substrate; and an array disposed on the
Picture of the Ice Maker with the words "Ice Maker" displayed above it

Icemaker, Process for Controlling Same and Making Ice

NIST Inventors
David A. Yashar
A system to make ice includes a refrigeration unit and an icemaker disposed in the refrigeration unit. The refrigeration unit is configured to be subjected to a refrigeration cycle; the icemaker is configured to be subjected to a freeze cycle; and the system is configured such that the freeze cycle

Methods And Apparatus For Transplantation Of Nucleic Acid Molecules

In exemplary implementations, transplantation of nucleic acids into cells occurs in microfluidic chambers. The nucleic acids may be large nucleic acid molecules with more than 100 kbp. In some cases, the microfluidic chambers have only one orifice that opens to a flow channel. In some cases, flow
A metal cube (RPPM) mounted on a metal surface has round holes cut in each side.

Optical Meter and Use of Same

NIST Inventors
John H. Lehman and Paul A. Williams
An optical meter includes a force member to receive a force and a reflector disposed on the force member to receive radiation and to communicate a pressure of the radiation to the force member. The reflector includes a reflective surface, and the force member is configured to be displaced in
Photonic thermometer packages

Optical Temperature Sensor

NIST Inventors
Zeeshan Ahmed , Steve Semancik , Jacob Taylor and Gregory F. Strouse
A thermometer includes a substrate; an optical resonator disposed on the substrate and including an optical resonance, the optical resonator being configured to receive a resonant frequency corresponding to the optical resonance; and a waveguide disposed on the substrate proximate to the optical

Multiple Specimen Testing

NIST Inventors
Dave McColskey and Andrew Slifka
Systems and methods are described for concurrently applying loads to multiple test specimens. The systems and methods are useful for cyclical tensile loading of specimens such as in fatigue strength evaluations. The systems and methods are also useful for low frequency cyclical loading evaluations.
Diagram shows ethanol, shields, vapor cell, reservoir, heater.

Detection of J-Coupling Using Atomic Magnetometer

NIST Inventors
John Kitching
An embodiment of a method of detecting a J-coupling includes providing a polarized analyte adjacent to a vapor cell of an atomic magnetometer; and measuring one or more J-coupling parameters using the atomic magnetometer. According to an embodiment, measuring the one or more J-coupling parameters

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

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

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
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
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
Fiber magnetometer

Atomic Magnetometer and Method of Sensing Magnetic Fields

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
Depiction of Circuit of Invention

AC and DC Bipolar Voltage Source Using Quantized Pulses

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

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
Electron Spin Resonance Spectrometer and Method for Using Same_Image

Electron Spin Resonance Spectrometer and Method for Using Same

The new High Definition-E S R(HD-E S R ) spectrometer utilizes a superior detection scheme to perform electron spin resonance measurements. The major innovation centers on the use of a shorted coaxial “probe” (as small as a few nanometers) to excite the sample under test using near-field microwave

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
Displaying 226 - 250 of 271
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