公开(公告)号：US20030099271A1

公开(公告)日：2003-05-29

申请号：US10040598

申请日：2001-11-09

发明人： Aleksander Maksimov ,  Peter Novak

IPC分类号： H01S003/09

CPC分类号： G01R33/60 ,  G01N24/10 ,  G01R33/345

摘要： A method for exciting chemical bonds in molecules using an electromagnetic field includes the step of generating a plurality of electromagnetic oscillation modes. The oscillation modes redistributing respective mode energies between themselves. Energy derived from the redistributed mode energies is used to impart energy to at least one pair of electrons comprising a chemical bond, thus exciting these electrons. The process can be used even when all electrons are paired. The method can be used for synthesizing compounds, quantum mechanical pumping of chemical bonds and for characterization of materials. An apparatus for exciting chemical bonds in molecules using an electromagnetic field includes a structure for generating a plurality of electromagnetic oscillation modes, the oscillation modes redistributing respective mode energies between themselves. The structure for generating a plurality of electromagnetic oscillation modes preferably includes a self-sustained oscillation system having distributed parameters.

摘要翻译： 使用电磁场激发分子中的化学键的方法包括产生多个电磁振荡模式的步骤。 振荡模式在它们之间重新分配各自的模式能量。 从再分布模式能量得到的能量用于向包含化学键的至少一对电子赋予能量，从而激发这些电子。 即使所有电子配对，也可以使用该过程。 该方法可用于合成化合物，化学键的量子力学抽吸和材料表征。 使用电磁场激发分子中的化学键的装置包括用于产生多个电磁振荡模式的结构，所述振荡模式在它们之间重新分配各自的模式能量。 用于产生多个电磁振荡模式的结构优选地包括具有分布参数的自持振荡系统。

公开(公告)号：US5258313A

公开(公告)日：1993-11-02

申请号：US723188

申请日：1991-06-28

申请人： Mehdi Moussavi

发明人： Mehdi Moussavi

IPC分类号： A61B5/145 ,  A61K49/06 ,  C07D487/22 ,  G01N24/10 ,  G01N33/49 ,  G01N33/52 ,  G01R33/60 ,  G01N33/00

CPC分类号： A61K49/06 ,  G01N24/10 ,  G01R33/60 ,  Y10T436/20 ,  Y10T436/207497 ,  Y10T436/209163 ,  Y10T436/24

摘要： The present invention relates to a process for the detection or determination of molecular oxygen by EPR spectrometry using radical lithium phthalocyanines and a composition usable for in vivo determination. In the process, a medium is contacted with a radical lithium phthalocyanine in accordance with the formula: ##STR1## in which R.sup.2, R.sup.3, R.sup.6, R.sup.7, R.sup.10, R.sup.11, R.sup.14 and R.sup.15 represent an alkyl or an alkoxy radical group with 1-3 carbon atoms and R.sup.1, R.sup.4, R.sup.5, R.sup.8, R.sup.9, R.sup.12, R.sup.13 and R.sup.16 represent a hydrogen or deuterium atom, and the EPR signal of the radical lithium phthalocyanine in contact with the medium is examined.

摘要翻译： 本发明涉及通过使用自由基锂酞菁的EPR光谱法和可用于体内测定的组合物来检测或测定分子氧的方法。 在该方法中，使介质与根据式（Ⅰ）的基团锂酞菁接触，其中R2，R3，R6，R7，R10，R11，R14和R15表示烷基或烷氧基基团 具有1-3个碳原子且R 1，R 4，R 5，R 8，R 9，R 12，R 13和R 16表示氢或氘原子，并且检查与介质接触的碱性锂酞菁的EPR信号。

公开(公告)号：US4849346A

公开(公告)日：1989-07-18

申请号：US13671

申请日：1987-02-12

申请人： John M. Wood ,  Karin U. Schallreuter

发明人： John M. Wood ,  Karin U. Schallreuter

IPC分类号： C12Q1/26 ,  G01N24/10

CPC分类号： G01N24/10 ,  C12Q1/26 ,  Y10S436/803 ,  Y10T436/13 ,  Y10T436/24

摘要： The present invention provides a method for measuring the activity of thioredoxin reductase in mammalian cells by contacting the cells in vivo or in vitro with a quaternary ammonium salt spin-labelled with a stable nitroxide free radical, and measuring the rate of reduction of the uncomplexed nitroxide free radical at the cell surface by electron spin resonance. This rate of reduction provides a measure of thioredoxin reductase activity at the surface of the cells.

摘要翻译： 本发明提供了一种通过使细胞体内或体外与稳定的氮氧自由基自旋标记的季铵盐接触来测量哺乳动物细胞中硫氧还蛋白还原酶的活性的方法，并测量未络合的氮氧化物的还原速率 通过电子自旋共振在细胞表面的自由基。 该降低速率提供在细胞表面的硫氧还蛋白还原酶活性的量度。

公开(公告)号：US4376264A

公开(公告)日：1983-03-08

申请号：US231178

申请日：1981-02-04

申请人： Hendrik D. Dokter ,  Roelof Hildering ,  Adrianus Mackor

发明人： Hendrik D. Dokter ,  Roelof Hildering ,  Adrianus Mackor

IPC分类号： B44F1/12 ,  D21H21/48 ,  G01N24/10 ,  G07D7/00 ,  G01N27/00

CPC分类号： D21H21/48 ,  G01N24/10 ,  G07D7/00

摘要： A method of checking the authenticity of papers, such as banknotes, is provided which comprises using authentic paper containing a minor amount of substance showing an ESR spectrum at room temperature and checking the authenticity by ESR spectroscopy, as well as paper for use in said method, containing a minor amount of a compound showing an ESR spectrum at room temperature, said compound being either an oxide or salt having a crystal lattice of cubic symmetry doped with such a metal, or an oxide or salt of arbitrary symmetry doped with a freely rotatable ion containing such a metal.

摘要翻译： 本发明提供了一种检查纸币的真伪性的方法，该方法包括使用含有少量在室温下显示ESR光谱的物质的真实纸张，并通过ESR光谱法检查真伪，以及用于所述方法的纸张 ，含有少量在室温下显示ESR光谱的化合物，所述化合物是具有掺杂有这种金属的立方对称晶格的氧化物或盐，或掺杂有可自由旋转的任意对称的氧化物或盐 含有这种金属的离子。

公开(公告)号：US20240353359A1

公开(公告)日：2024-10-24

申请号：US18756171

申请日：2024-06-27

申请人： YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.

发明人： Amir CAPUA ,  Nirel BERNSTEIN ,  Maayan KORCIA ,  Shimon ELIAV ,  Ma’yan MERON ,  Tal DAVID ,  Amit ROTHSCHILD

IPC分类号： G01N24/10

CPC分类号： G01N24/10

摘要： Disclosed herein is a system for magnetic testing of samples. The system includes: (i) a magnetic field generator configured to, by rotating a magnet(s), which is permanent, produce a temporally modulated magnetic field over a region whereat a sample is positioned; (ii) a waveguide positioned adjacently to the sample; (iii) a first sensor configured to obtain a first signal by directly and/or indirectly measuring a modulation rate of the produced magnetic field; (iv) an electromagnetic signal generator coupled to a first end of the waveguide; (v) a second sensor coupled to a second end of the waveguide and configured to obtain a measured signal by measuring a power of an electromagnetic signal transmitted through the waveguide; and (vi) a heterodyne-based demodulator communicatively associated with the first and second sensors and configured to use a reference signal, constituted by or obtained from the first signal, to demodulate the measured signal.

公开(公告)号：US12105037B2

公开(公告)日：2024-10-01

申请号：US17801215

申请日：2021-03-22

申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

发明人： Patrice Bertet ,  Emmanuel Flurin

IPC分类号： G01V3/00 ,  G01N24/10 ,  G01R29/08 ,  G01R33/46

CPC分类号： G01N24/10 ,  G01R29/0807 ,  G01R33/4608

摘要： A method of detecting spins in a sample, includes exciting the spins of the sample by means of a radio-frequency or microwave electromagnetic pulse for flipping the spins, and detecting a noise signal produced by the return of the spins to equilibrium by means of a device for counting radio-frequency or microwave photons.

公开(公告)号：US20240319304A1

公开(公告)日：2024-09-26

申请号：US18278368

申请日：2022-02-23

申请人： B. G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD.

发明人： Yishay MANASSEN

IPC分类号： G01R33/60 ,  G01N24/10 ,  G01Q60/10

CPC分类号： G01R33/60 ,  G01N24/10 ,  G01Q60/10

摘要： Detection of spin nucleus resonance (NMR) precession signal/peak of at least one atom or molecule of a sample material placed on a sample electrode while a static uniform magnetic field of a determined strength is induced through it is achieved by applying an alternating bias voltage to a tunneling tip in a frequency at least greater than an NMR frequency range and smaller than a hyperfine electron spin resonance (ESR) frequency range for alternatingly changing within each cycle of the alternating bias voltage at least one atom or molecule of a sample material between diamagnetic and paramagnetic states, and analysing a measured electrical tunneling current passing through the sample electrode. A plurality of hyperfine ESR signals/peaks are identified in the measured electrical tunneling current, each of which associated with a respective cycle of the alternating bias voltage, and a respective hyperfine ESR frequency thereof is determined.

公开(公告)号：US20240248052A1

公开(公告)日：2024-07-25

申请号：US18595333

申请日：2024-03-04

申请人： NEW YORK UNIVERSITY

发明人： Alexej JERSCHOW ,  Andrew J. ILOTT ,  Mohaddese MOHAMMADI ,  Emilia SILLETTA ,  Konstantin ROMANENKO

IPC分类号： G01N24/08 ,  G01N24/10 ,  G01R31/36 ,  G01R33/56

CPC分类号： G01N24/08 ,  G01N24/10 ,  G01R31/3644 ,  G01R33/5602 ,  G01R33/5608

摘要： A method of diagnosing a conducting structure includes providing the conducting structure in a magnetic field, immersing the conducting structure in a detection medium, or placing a detection medium in the vicinity of the conducting structure, exciting nuclear or electronic spins within the detection medium using a broad-band excitation pulse, receiving an NMR or ESR spectrum from the detection medium, obtaining a frequency distribution of the detection medium, and indirectly measuring internal characteristics of the conducting structure by characterizing frequency changes in the frequency distribution. Conducting structures are analyzed on the basis of changes in magnetic susceptibilities and internal electric current distributions, which may change over the course of a charging/discharging cycle, and a result of degradation and failure of the conducting structure. The conducting structure may be, for example, a battery, a capacitor, a supercapacitor, a fuel cell, or a catalyst material.

公开(公告)号：US12031929B2

公开(公告)日：2024-07-09

申请号：US17915987

申请日：2021-03-17

申请人： TOKYO INSTITUTE OF TECHNOLOGY

发明人： Yuji Hatano ,  Takayuki Iwasaki ,  Mutsuko Hatano

IPC分类号： G01N24/10 ,  G01N24/00

CPC分类号： G01N24/10 ,  G01N24/006

摘要： A physical state measurement apparatus includes a main solid material which generates fluorescence by excitation light from a light source part. A microwave application part applies microwaves to the main solid material so as to control an electron state of the main solid material. A detection part detects the physical state of an object to be measured by the fluorescence from the main solid material. A feedback part has a solid material for feedback and a control part and detects a difference in amplitude between operating points on a low-frequency side and a high-frequency side of a lowering portion of a spectrum amplitude centered on a resonance frequency of an electron spin resonance spectrum of fluorescence from the solid material for feedback and feedback-controls the microwave application part such that the difference becomes zero.

公开(公告)号：US11828899B2

公开(公告)日：2023-11-28

申请号：US17531855

申请日：2021-11-22

申请人： MICROSILICON INC.

发明人： Manuel Godoy ,  Aydin Babakhani ,  Omar Kulbrandstad ,  John Lovell

IPC分类号： G01V3/14 ,  E21B49/08 ,  G01N24/10

CPC分类号： G01V3/14 ,  E21B49/08 ,  G01N24/10

摘要： Certain aspects of the present disclosure provide methods and apparatus for performing electron paramagnetic resonance (EPR) spectroscopy on a fluid from a flowing well, such as fluid from hydrocarbon recovery operations flowing in a downhole tubular, wellhead, or pipeline. One example method generally includes, for a first EPR iteration, performing a first frequency sweep of discrete electromagnetic frequencies on a cavity containing the fluid; determining first parameter values of reflected signals from the first frequency sweep; selecting a first discrete frequency corresponding to one of the first parameter values that is less than a threshold value; activating a first electromagnetic field in the fluid at the first discrete frequency; and while the first electromagnetic field is activated, performing a first DC magnetic field sweep to generate a first EPR spectrum.