Related Experiment Video
Updated: Feb 21, 2026
10:22
MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T
Published on: January 16, 2021
5.9K
Increasing the detection distance of remote NMR using wireless inductive coupling coil
Mario Henrique M Killner1,2, Giancarlo Tosin3, André S Carvalho4
1Embrapa Instrumentação, Rua XV de Novembro 1452, São Carlos, SP, 13560-970, Brazil.
Scientific Reports
|October 6, 2017
Summary
Wireless inductive coupling enhances remote unilateral nuclear magnetic resonance (UNMR) detection. This method significantly increases the detection distance for UNMR sensors, expanding their application range.
Area of Science:
- Analytical Chemistry
- Spectroscopy
- Physics
Background:
- Unilateral nuclear magnetic resonance (UNMR) spectrometers are used in diverse fields like petrochemistry and materials science.
- UNMR signal intensity decreases exponentially with increasing sample-to-sensor distance.
- Current remote UNMR applications are limited by short detection ranges.
Purpose of the Study:
- To enhance the detection limits of remote UNMR sensors.
- To investigate the effectiveness of wireless inductive coupling for UNMR.
- To expand the applicability of UNMR technology.
Main Methods:
- Implementation of wireless inductive coupling for remote UNMR sensing.
- Testing the proposed strategy to reduce signal attenuation.
- Measuring the change in detection distance with the new method.
Main Results:
- Wireless inductive coupling significantly reduces signal attenuation.
- Detection distance increased by one order of magnitude (millimeters to centimeters).
- The novel approach proved effective in expanding remote sensing capabilities.
Conclusions:
- Wireless inductive coupling is a viable strategy to improve remote UNMR sensor performance.
- This advancement broadens the potential applications of UNMR.
- New opportunities arise in chemical, biomedical, and other fields.
More Related Videos
Related Concept Videos
01:27¹H NMR: Long-Range Coupling
2.8K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
2.8K
01:12Double Resonance Techniques: Overview
797
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
Spin decoupling is usually achieved by...
797
01:28Magnetic Field Due To A Thin Straight Wire
6.3K
Consider an infinitely long straight wire carrying a current I. The magnetic field at point P at a distance a from the origin can be calculated using the Biot-Savart law.
6.3K
01:18Magnetic Field Due to Two Straight Wires
4.9K
Consider two parallel straight wires carrying a current of 10 A and 20 A in the same direction and separated by a distance of 20 cm. Calculate the magnetic field at a point "P2", midway between the wires. Also, evaluate the magnetic field when the direction of the current is reversed in the second wire.
4.9K
01:08NMR Spectroscopy: Spin–Spin Coupling
3.3K
The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
3.3K
01:04¹³C NMR: ¹H–¹³C Decoupling
1.9K
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
1.9K