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

X-ray Crystallography02:18

X-ray Crystallography

26.1K
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
26.1K
The Carbon Cycle01:14

The Carbon Cycle

43.6K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
43.6K
Carbon Skeletons01:12

Carbon Skeletons

114.8K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
114.8K
Gas Chromatography: Types of Detectors-I01:21

Gas Chromatography: Types of Detectors-I

1.5K
There are different types of detectors used in gas chromatography, each with its own specific properties that make it suitable for detecting certain types of analytes. The most commonly used detectors in GC are thermal conductivity detector (TCD), flame ionization detector (FID), and electron capture detector (ECD).
TCD is the earliest and most widely used detector that operates by measuring the changes in the thermal conductivity of the carrier gas. When a sample compound enters the detector,...
1.5K
Gas Chromatography: Overview of Detectors01:13

Gas Chromatography: Overview of Detectors

2.0K
Detectors in gas chromatography (GC) help identify and quantify the components of a mixture by translating chemical properties into measurable signals, which are displayed on a chromatogram. Detectors can be categorized into two main types: destructive and non-destructive.
A non-destructive detector allows a sample to be analyzed without altering or consuming it, meaning the sample can be collected after detection for further analysis. Examples include thermal conductivity detectors and...
2.0K
Gas Chromatography: Types of Detectors-II01:19

Gas Chromatography: Types of Detectors-II

1.2K
In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...
1.2K

You might also read

Related Articles

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

Sort by
Same author

Synergistic Enhancement of Ammonia Sensing Using ZnO/Au-Decorated Carboxylated SWCNT Heterostructures.

ACS sensors·2026
Same author

Effortless and controllable electrical amplification in single-PMOS sensor for chemical and biological sensing.

Biosensors & bioelectronics·2026
Same author

Backbone-Length-Optimized Inhibitors Deliver Long-Retention Selectivity in Area-Selective ALD of VO<sub>2</sub>.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Design and Experimental Realization of Ultra-High Green Index Electromagnetic Interference Shields With Opposing Magnetic and Conductivity Gradients.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Spaceflight stressors impact on mitochondrial function and the risk for development of ocular pathology.

NPJ microgravity·2026
Same author

Tellurium-Vacancy Engineering in Ultrathin Bi<sub>2</sub>Te<sub>3</sub> Enables Broadband Multifunctional Optoelectronic Synapse for Energy-Efficient Neuromorphic and Optical Information Processing.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Robust and Sensitive Electrochemical Biosensor Based on Cascade Interface Engineering for piRNA Detection in Breast Cancer Diagnosis.

ACS sensors·2026
Same journal

CRISPR-Cas-Based Platform for Single-Step Quantification of Monoclonal Antibodies at Point-of-Care.

ACS sensors·2026
Same journal

Engineering Guide RNAs for CRISPR-Based Biosensors.

ACS sensors·2026
Same journal

Multimodal Detection of Low Water Contents in Ethanol Using a Plasmon-Berreman-Enhanced Metasurface Infrared Absorber.

ACS sensors·2026
Same journal

3D-Printed Hollow Microneedle Potentiometric Sensors: A Modular Approach.

ACS sensors·2026
Same journal

A Genetically Encoded Fluorescent Sensor for Protein Arginine Phosphorylation.

ACS sensors·2026
See all related articles

Related Experiment Video

Updated: Jan 28, 2026

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy
08:10

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy

Published on: February 5, 2017

7.8K

Carbon Nanotube Based γ Ray Detector.

Sun Jin Kim, Honglu Wu1, Dong-Il Moon

  • 1NASA Johnson Space Center , Houston , Texas 77058 , United States.

ACS Sensors
|March 9, 2019
PubMed
Summary
This summary is machine-generated.

A novel single-walled carbon nanotube (SWCNT) γ ray detector bypasses traditional scintillation. It uses changes in SWCNT conductance, driven by radiation-induced oxygen adsorption, for sensitive detection and dose rate differentiation.

Keywords:
oxygen dissociationozone moleculeradiation damagesingle wall carbon nanotubeγ ray detector

More Related Videos

Transport of Surface-modified Carbon Nanotubes through a Soil Column
10:26

Transport of Surface-modified Carbon Nanotubes through a Soil Column

Published on: April 2, 2015

9.9K
Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
09:47

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

10.1K

Related Experiment Videos

Last Updated: Jan 28, 2026

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy
08:10

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy

Published on: February 5, 2017

7.8K
Transport of Surface-modified Carbon Nanotubes through a Soil Column
10:26

Transport of Surface-modified Carbon Nanotubes through a Soil Column

Published on: April 2, 2015

9.9K
Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
09:47

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes

Published on: February 19, 2016

10.1K

Area of Science:

  • Materials Science
  • Radiation Detection
  • Nanotechnology

Background:

  • Conventional gamma ray detectors often rely on scintillation mechanisms.
  • Single-walled carbon nanotubes (SWCNTs) possess unique electrical properties sensitive to surface interactions.

Purpose of the Study:

  • To demonstrate a gamma ray detector based on single-walled carbon nanotubes (SWCNTs).
  • To investigate the sensing mechanism involving radiation-induced oxygen adsorption on SWCNTs.
  • To evaluate the detector's response to total dose and dose rate.

Main Methods:

  • Fabrication of a two-terminal SWCNT resistor.
  • Exposure of the SWCNT resistor to gamma ray radiation.
  • Monitoring changes in the electrical conductance of the SWCNT in response to radiation.
  • Analysis of radiation-induced oxygen dissociation and adsorption on the SWCNT surface.

Main Results:

  • The SWCNT-based device functioned as a gamma ray detector without a scintillation mechanism.
  • Gamma ray exposure altered the electrical conductance of the SWCNT.
  • The detector demonstrated sensitivity to gamma ray total dose.
  • The detector successfully distinguished radiation dose rates from 2.4 to 16.4 R/min.

Conclusions:

  • A novel SWCNT-based gamma ray detector has been successfully demonstrated.
  • The sensing mechanism relies on the modulation of SWCNT electrical properties by radiation-induced surface oxygen species.
  • The detector exhibits potential for sensitive gamma ray detection and dose rate assessment.