Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Resonance02:52

Resonance

65.7K
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N-O and N=O bonds.
65.7K
The Sense of Self: Reflected Self-Appraisal and Social Comparison02:57

The Sense of Self: Reflected Self-Appraisal and Social Comparison

56.1K
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
56.1K
Self-Evaluation: Self-Enhancement and Self-Verification03:00

Self-Evaluation: Self-Enhancement and Self-Verification

5.8K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.8K
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals01:17

Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

3.5K
Ideally, an unpaired electron shows a single peak in the EPR spectrum due to the transition between the two spin energy states. However, coupling interactions can occur between the spins of the unpaired electron and any neighboring spin-active nuclei. This hyperfine coupling results in hyperfine splitting, where the EPR signal is split into multiplets. The signals split into 2nI + 1 peaks, where n is the number of equivalent nuclei and I is the nuclear spin. These splitting patterns provide...
3.5K
Introduction to Special Senses01:26

Introduction to Special Senses

7.6K
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
7.6K
Tactile and Chemical Senses01:27

Tactile and Chemical Senses

811
Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
811

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

High-speed and high-sensitivity multi-gas detection based on parallel heterodyne LITES sensor.

Light, science & applications·2026
Same author

A Dual-Domain Multiplexed QEPAS System for Multispecies Gas Detection Based on Wavelength-Selective LPFG.

Analytical chemistry·2026
Same author

Highly Sensitive Light-Induced Thermoelastic Spectroscopy Based on a Dual-Enhanced Quartz Crystal Tuning Fork via Gold Nanorods' LSPR Effect and High Thermal Conductivity.

Analytical chemistry·2026
Same author

On-off-beam differential resonance quartz-enhanced photoacoustic spectroscopy gas sensing technology.

Optics letters·2026
Same author

Orthogonal phase modulation and Lissajous mode decoupling in light-induced thermoelastic spectroscopy for real-time multi-component gas sensing.

Reports on progress in physics. Physical Society (Great Britain)·2026
Same author

"1"-shaped acoustic cascaded resonator enhanced light-induced thermoelastic spectroscopy gas sensing.

Optics letters·2026
Same journal

Strain-Level Food Surveillance of <i>Escherichia coli</i> Using a Specific-Nonspecific Hybrid Sensor Array Strategy.

Analytical chemistry·2026
Same journal

A Field-Portable Fe(IV)-Mediated Competitive Quenching Chemiluminescence Platform with a Synchronous Y-Shaped Flow-through Cell for Broad-Spectrum Quantification of Volatile Phenols.

Analytical chemistry·2026
Same journal

Single-Molecule Characterization of CRISPR-Cas12a for Amplification-Free Genetic Testing.

Analytical chemistry·2026
Same journal

Integrated Acoustofluidic Manipulation and Oscillation-Stabilized Magnetic Relaxation Biosensing for <i>Salmonella</i> Detection.

Analytical chemistry·2026
Same journal

A Self-Powered Sensing Platform Based on the Janus Heterostructure for Machine Learning-Assisted Dual-Mode Detection of 17β-Estradiol.

Analytical chemistry·2026
Same journal

Large Language Model-Generated Dietary Metabolite Biomarker Database Drives Deep Annotation of the Human Diet Metabolome.

Analytical chemistry·2026
See all related articles

Related Experiment Video

Updated: Feb 10, 2026

Switchable Acoustic and Optical Resolution Photoacoustic Microscopy for In Vivo Small-animal Blood Vasculature Imaging
10:17

Switchable Acoustic and Optical Resolution Photoacoustic Microscopy for In Vivo Small-animal Blood Vasculature Imaging

Published on: June 26, 2017

12.5K

Elliptical Acoustic Resonator-Based Dual-Quartz-Enhanced Photoacoustic Spectroscopy Sensing.

Shunda Qiao1,2,3, Bangyu Liu1,2, Ziheng Lv2

  • 1Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450000, China.

Analytical Chemistry
|February 9, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces a novel dual-quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor using an elliptical acoustic resonator (EAR). This innovative design significantly enhances signal intensity and detection limits for gas sensing applications.

More Related Videos

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces
10:21

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Published on: July 26, 2016

12.1K
Dual Raster-Scanning Photoacoustic Small-Animal Imager for Vascular Visualization
07:14

Dual Raster-Scanning Photoacoustic Small-Animal Imager for Vascular Visualization

Published on: July 15, 2020

4.5K

Related Experiment Videos

Last Updated: Feb 10, 2026

Switchable Acoustic and Optical Resolution Photoacoustic Microscopy for In Vivo Small-animal Blood Vasculature Imaging
10:17

Switchable Acoustic and Optical Resolution Photoacoustic Microscopy for In Vivo Small-animal Blood Vasculature Imaging

Published on: June 26, 2017

12.5K
Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces
10:21

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces

Published on: July 26, 2016

12.1K
Dual Raster-Scanning Photoacoustic Small-Animal Imager for Vascular Visualization
07:14

Dual Raster-Scanning Photoacoustic Small-Animal Imager for Vascular Visualization

Published on: July 15, 2020

4.5K

Area of Science:

  • Spectroscopy
  • Acoustic Resonators
  • Gas Sensing

Background:

  • Traditional QEPAS systems suffer from low acoustic energy utilization.
  • Acoustic focusing properties of resonators can improve energy collection.
  • Dual QTFs can enhance signal superposition.

Purpose of the Study:

  • To present a novel D-QEPAS sensor utilizing an elliptical acoustic resonator (EAR).
  • To address the low acoustic energy utilization issue in conventional QEPAS.
  • To improve gas detection sensitivity and limit.

Main Methods:

  • Developed a D-QEPAS sensor incorporating an EAR with dual QTFs at focal points.
  • Established and optimized an EAR theoretical model using finite element analysis.
  • Utilized acetylene (C2H2) as the target gas for performance evaluation.

Main Results:

  • The EAR-based D-QEPAS system demonstrated an approximately 13.05x enhancement in signal intensity compared to traditional QEPAS.
  • Achieved a gas detection limit of 134 ppb for acetylene at an average time of 500 s, confirmed by Allan deviation analysis.
  • The dual QTF configuration at the EAR's focal points enabled efficient acoustic energy collection and signal superposition.

Conclusions:

  • The novel EAR-based D-QEPAS sensor effectively overcomes the limitations of traditional systems.
  • This sensor architecture offers significantly improved performance for trace gas detection.
  • The findings pave the way for more sensitive and efficient photoacoustic spectroscopy applications.