Tiny detectors that can sniff out everything from explosives and biotoxins to smuggled humans
Sandia National Laboratories scientists are thinking small, building on decades of sensor work to invent tiny detectors that can sniff out everything from explosives and biotoxins to smuggled humans.
Their potential seems unlimited. The military needs to find low concentrations of chemicals, such as those used in roadside bombs or chemical warfare agents, before they hurt anyone, said researcher Ron Manginell. Soldiers often use detectors in less-than-ideal situations, looking for dangerous substances from among a rich miasma of diesel fumes, smoke and dust. They carry detectors into the field, where instruments must be portable, rugged, reliable and easy-to-use. In addition, inspectors at checkpoints and border crossings that see large numbers of containers lack automated ways to find trafficked people or contraband.
In the late 1990s, Sandia developed a simple-to-use handheld chemical detector for the military, the MicroChemLab. Ever since, Sandia has improved such microfluidics- and microelectromechanical (MEMS) systems-based instruments that identify chemicals based on gas chromatography, or GC, and resonator-style instruments such as surface acoustic wave (SAW) detectors.
Detection world needs new instruments
Manginell said SAW-based instruments will continue to be extremely important. But the world of detection also needs new instruments that can find compounds such as carbon dioxide, chemical signals unique to humans or the volatile signatures of pathogens and diseases in livestock and humans.
Manginell led a project to develop such a detector and couple it with GC. Together, they identify vapors by “sniffing” volatile organic compounds (VOCs). The prototype of the new detector, a miniature pulsed-discharge ionization detector, or mini-PDID, is about 1 inch by 1 inch by 2 inches, can be coupled with commercially produced micro-GCs and can run for nine hours on a charge of helium.
Experiments have shown the mini-PDID can detect explosives-related compounds, pesticides and toxic industrial compounds. “These are nasty things,” Manginell said. The detector also homes in on signatures of human odors and bacteria, light gases such as carbon monoxide and carbon dioxide and a broad range of organic compounds.
“We now have new detectors, like the PDID, with higher sensitivity and broader applicability that would integrate well with the SAW and micro-GCs to provide both sensitivity, the ability to detect a few molecules of a given compound, and selectivity, the ability to distinguish compounds from one another,” Manginell said. A miniaturized vapor detection unit and subsidiary electronics could fit in a format no larger than a cell phone, he said.
Looking at a detector for human cargo
The mini-PDID’s universal detection abilities are allowing researchers to look at vapor detection of bacteria, an approach aimed at bringing biological and chemical detection into a small, common platform, Manginell said. He highlighted the work, funded by Sandia’s Laboratory Directed Research and Development program, in a presentation at last fall’s International Breath Analysis meeting in Sonoma, CA. The Journal of Breath Research published a paper by the team in July 2013.
The team demonstrated the possibility of a VOC-based detector for humans as part of the project.
“People are brought across the border for many reasons, sometimes for a better life, sometimes for malevolent reasons” such as drug, weapons or explosives smuggling, Manginell said.
Current commercial detectors to find human cargo are about the size of a large shoebox, minus the electronics that operate them. Thus, Manginell’s team saw promise for a miniature vapor-based detector for what he calls “indications of human presence.”
In other words, sweat.
The Latest Bing News on:
Detection instruments
- Makati Life Medical Center pioneers in uMI 550 digital cancer detection use in Philippineson May 10, 2024 at 1:41 am
The newest premier healthcare center in Makati City—Makati Life—has partnered with United Imaging and healthcare solutions providers Operista Medical Solutions and Paeonmed Philippines for the ...
- Strong Q1 Performance and Strategic Acquisition Bolster Buy Rating for MKS Instrumentson May 9, 2024 at 4:25 am
MKS Instruments (MKSI) Company Description ... residual gas analysis, leak detection, control technology, ozone generation and delivery, RF & DC power, reactive gas generation, and vacuum technology ...
- MKS Instruments: Outperforming Expectations with Strong Financials and Positive Analyst Outlookon May 9, 2024 at 3:40 am
Mark Miller, an analyst from Benchmark Co., maintained the Buy rating on MKS Instruments (MKSI – Research Report). The associated price ...
- Waters Corporation: Waters ACQUITY QDa II Mass Detector Delivers Wider Range of Chemical Analysis within Cost-Effective, Lower Energy Instrumenton May 8, 2024 at 5:32 am
ACQUITY QDa II Mass Detector enhances confidence in routine compound identification using the specificity of mass analysis to boost efficiency, robustness, and productivity ...
- Waters ACQUITY QDa II Mass Detector Delivers Wider Range of Chemical Analysis within Cost-Effective, Lower Energy Instrumenton May 8, 2024 at 5:00 am
Waters Corporation (NYSE:WAT) today announced the release of the ACQUITY QDa II Mass Detector, the evolution of its highly successful, compact, and streamlined mass detection instrument that delivers ...
- Revolution in Methane Detection: Scientists Achieve Groundbreaking 500-Fold Sensitivity Increaseon May 5, 2024 at 1:24 pm
A research group headed by Professor Chen Chilai from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has significantly enhanced the detection sensitivity of dissolved ...
- Best Medical Alert Systems Of 2024on May 2, 2024 at 7:39 am
(‘The equipment we provide uses AT&T’s cellular ... Our Review “I’m happy to see that MobileHelp includes a fall detection neck or wrist wearable, as other brands on this list require ...
- Underwater mass spectrometry achieves 500-fold sensitivity enhancement for dissolved methane detectionon April 29, 2024 at 1:35 pm
A research team led by Prof. Chen Chilai from Hefei Institutes of Physical Science of Chinese Academy of Sciences, amplified the detection sensitivity of dissolved methane in water by over 500 times, ...
- Colorado State University lands $25 million grant to boost methane detection workon April 27, 2024 at 5:00 pm
So, it is just like a Hollywood set except it's for leak detection.” While CSU has been working on methane since 2011, the eight-acre facility outside of Fort Collins started in 2017 and operates more ...
- Top 5 Best Deepfake Detector Tools & Techniques in 2024on April 27, 2024 at 5:00 pm
As a result, the demand for effective deepfake detection instruments has surged. Luckily, a variety of tools and strategies are available that can assist individuals and organizations in ...
The Latest Google Headlines on:
Detection instruments
[google_news title=”” keyword=”detection instruments” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
The Latest Bing News on:
Detector for human cargo
- New AI Humanizer is Able to Bypass AI Detectorson May 7, 2024 at 5:00 pm
Ghost AI have launched their new AI humanizer that enables users to create AI generated content that passes as human on detectors.Northville, ...
- We've Listed The Most Valuable Treasure Ever Discovered In Your Stateon May 6, 2024 at 1:40 pm
Various groups of metal detector enthusiasts regularly get together to find historical ... The FBI also discovered around 2,000 human bones, which had been taken from Native American burial sites.
- Best Carbon Monoxide Detector for 2024on May 1, 2024 at 1:00 pm
Carbon monoxide, or CO, is a gas that can be extremely dangerous to human health ... Having a carbon monoxide detector in your home will help protect your household from this potentially deadly ...
- Best Smoke Detector for 2024on April 23, 2024 at 7:01 am
He is in charge of developing and carrying out testing procedures for a wide variety of home appliances and smart devices including robot vacuums, smoke/CO detectors and air conditioning units.
- Your Ultimate Carbon Monoxide Detector Guideon April 18, 2024 at 7:24 am
However, most CO poisoning can be avoided by installing carbon monoxide detectors throughout the home. Carbon monoxide detectors continually monitor the carbon monoxide levels in your home and ...
- Your Ultimate Smoke Detector Guideon April 18, 2024 at 5:29 am
Sadly, half of all house fire-related deaths occur in homes with working smoke detectors. That’s why smoke detector knowledge is so important. This smoke detector guide will help you protect ...
- 5 best metal detector apps for Android that actually workon April 17, 2024 at 5:00 pm
Before we go any further, it’s worth noting that a real metal detector is going to be much more effective than your phone. However, this is something you can really do, so it’s worth having an ...
- Particle Detectorson April 4, 2024 at 5:28 am
Detectors cover the measurement of energies spanning from the very low to the highest energies observed in cosmic rays. Describing the instrumentation for experiments in high energy physics and ...
- Joint Chemical Agent Detectoron March 2, 2024 at 8:40 am
The Joint Chemical Agent Detector (JCAD) M4A1 is a pocket-size, rugged, handheld detector that automatically detects, identifies, and alarms to chemical warfare agents and toxic industrial ...
- Best Metal Detectors of 2024on November 6, 2023 at 12:34 pm
When you use links on our website, we may earn a fee. Table of Contents A Norwegian man named Erlend Bore took his brand-new metal detector out into the hills near his hometown of Stola and came ...
The Latest Google Headlines on:
Detector for human cargo
[google_news title=”” keyword=”detector for human cargo” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]