Articles tagged with Chemical Warfare
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Researchers at Washington University in St. Louis are developing a new way to detect sulfur mustard, a highly toxic chemical warfare agent, using nucleic acid molecular recognition and dendrimers.
Researchers led by Judith Su will develop a portable FLOWER sensing device for detecting zeptomolar concentrations of chemical warfare agents. The device has shown record-breaking sensitivity and could preserve the lives of active-duty service members.
Research finds military veterans exposed to low doses of chemical warfare agents have higher rates of mortality from genitourinary diseases and deaths attributable to alcohol. However, overall cancer incidence is not significantly associated with Porton Down attendance.
Guinea grass, an invasive species in Texas, uses a combination of crowding and chemical toxins to suppress native plants. The researchers found that the toxicity of guinea grass increases dramatically when its shading effect is combined with its chemical warfare, making it harder for native plants to survive.
A Rutgers team designed a synthetic protein that quickly detects molecules of VX, a deadly nerve agent classified as a weapon of mass destruction. The protein can detect VX at levels a thousand times more sensitive than current technologies, with no false positives.
Researchers from Chung-Ang University have developed a novel device that uses respiration to power sensors in gas masks, allowing for a continuous electrical output. The device, called IVF-TENG, demonstrates potential applications in portable electronics and wireless data transmission.
Researchers developed an automated method to create 3D images of leaked gas clouds, enabling precise location, volume, and concentration determination. This technology can provide early leak warnings, assess risk, or determine the best way to fix leaks in large facilities with stored toxic chemicals.
Researchers found blow flies can be used to detect chemical warfare agents and pollutants, providing a safer alternative for investigating environmental contamination. The insects' guts store information about the environment, which can be analyzed using mass spectrometry.
Researchers developed a versatile composite fabric that can deactivate both biological threats like SARS-CoV-2 and chemical threats like chemical warfare. The material is also reusable and scalable.
Researchers from the University of Warwick have developed a cheap way to switch bacteria into chemical production mode using a natural nutrient, drastically reducing costs. This breakthrough brings closer the realization of sustainable industrial-scale production of high-value chemicals from cheap feedstocks.
The gut's immune system plays a critical role in regulating nutrient absorption and warding off toxic chemicals and life-threatening bacteria. Researchers found that gamma delta T cells suppress interleukin-22 expression, allowing for the activation of digestive enzymes and nutrient transporters.
A University of Gothenburg study reveals that survivors of the 1988 Halabja poison-gas attack struggle with uncertainty about survival, forming couple relationships, and having children due to CWAs exposure
Scientists are developing new ways to mitigate climate change while enabling people and ecosystems to survive and thrive. Researchers are reengineering crops to increase yield and resist disease, modifying coral DNA to make reefs more resilient, and creating innovative solutions for cities to protect infrastructure from extreme weather.
A new UC Riverside study reveals that commuters exposed to a known carcinogen called TDCIPP for less than a week experience elevated levels of the chemical. The research found that the longer one commutes, the higher their exposure to TDCIPP.
Researchers have developed a series of new catalysts for the asymmetric synthesis of alcohols, which could be used to make high-value chemicals such as pharmaceuticals and electronics chemicals. The new method is faster, cheaper and more sustainable than traditional methods, requiring less material and reducing waste.
A qualitative study of 16 patients in Halabja, Iraq, exposed to sulfur mustard in the 1980s reveals severe physical and mental health impairments. The study highlights the need for holistic care and detection of somatic and mental ill-health to minimize deterioration in health outcomes.
A new study found that warmer water temperatures combined with low-level chemical exposure influence the expression of genes in the offspring of a North American fish species. The finding threatens organisms sensitive to water temperature and highlights the need for reevaluating regulatory decisions based on short-term testing.
The US military seeks to protect its troops against chemical attacks with a new color-changing fabric developed by University of Cincinnati Professor Anastasios Angelopoulos. The fabric, made from the polymer Nafion, detects chemical agents in the air while preventing them from interacting with the skin.
A new stamp-sized sensor can detect trace amounts of sarin within minutes, allowing for early treatment and preventing permanent damage. The technology uses a 'chemical black hole' to attract negatively charged fluoride ions, which are easy to detect electrochemically.
Researchers discover a precursor to create phosphorus compounds, bypassing hazardous substances. The new anions, bis(trichlorosilyl)phosphide, work well in various reactions, producing diverse phosphorus-containing compounds.
Researchers have created a smart fabric that can detect and neutralize nerve gas, with the ability to absorb up to 7g of toxin per gram of Cu. The fabric uses copper-based nanoparticles to break down nerve gas surrogates, making it a potential tool for detecting chemical warfare agents.
A new study describes a method to save lives in chemical attacks by predicting the trajectory of released chemical plumes. The research team developed an early warning prediction system using a weather forecasting model and local sensor data, which was able to accurately predict the spread of gas in a recent Syrian attack.
Researchers at Northwestern University designed a quantum cascade laser (QCL) frequency comb that is one order of magnitude more efficient than previous iterations. The new design emits over four times the output power, making it suitable for detecting industrial emissions, explosives, and chemical warfare agents.
Researchers have created a fabric material capable of degrading chemical warfare agents (CWAs), rendering them harmless. The unique 'nano-kebab' structure, formed by metal-organic frameworks (MOFs) on nanofibers, breaks down CWAs with half-lives as brief as 2.3 minutes.
Researchers at the University of Pittsburgh are developing new hybrid materials that use light to detect chemical warfare agents. The team, led by J. Karl Johnson, is exploring the use of multifunctional metal-organic frameworks (MOFs) with plasmonic cores to selectively transport toxic chemicals for detection and neutralization.
A new method for extracting, enriching and identifying chemical warfare agents from oils and organic liquids has been developed, using nanoparticles to capture the chemicals. The method can identify agents at low concentrations, overcomes challenges of detecting water-repellent agents, and has potential to save lives.
A special issue of Deep Sea Research II explores the global issue of chemical munitions dumped at sea, finding that while some munitions pose little risk to humans, others can have adverse effects on fish populations. International collaboration has shed light on techniques for investigating munitions dumpsites and mitigating damage.
A new method of predicting the path of weaponized chemical agents has been developed by UTSA associate professor Kiran Bhaganagar, with a focus on tracking environmental conditions that affect the direction and movement of released chemical agents. The project aims to enable faster evacuation and response to chemical terrorist attacks.
Scientists have developed a new hydrogel coating that can neutralize both mustard gas and nerve agent VX in under 20 minutes. This breakthrough could lead to the creation of protective clothing and paints that safeguard against chemical warfare agents.
A new thin-film material rapidly changes color in response to chemical nerve agents, offering a potential solution for real-time detection of deadly CWAs. This innovation is based on a distinct color change, a technique that could help save lives and hold aggressors accountable.
Scientists have developed micromotors that use water as fuel to rapidly neutralize chemical and biological warfare agents. The micromotors propelled titanium dioxide to accelerate the decontamination process, showing promise in combating these dangerous agents.
Environmental scientists warn that synthetic food packaging chemicals can leach into foods and harm human health over the long term. The authors argue that little is known about their impact on chronic conditions like cancer, obesity, and neurological disorders.
Researchers found that competition between corals and seaweeds leads to an increase in toxic compounds in seaweeds, making them more attractive to herbivorous fish. This response is a first demonstration of how seaweeds can adapt their chemical defenses in response to competition with corals.
Researchers at the University of Warwick have developed a way to control the speed and direction of motion of microscopic structures in water using chemotaxis. By adding a chemical catalyst, they can propel matchstick particles towards a specific location, demonstrating a versatile method for directing colloidal motion.
Fish can determine their size relative to others using chemical cues alone. This ability helps form groups with strength in numbers, reducing individual risk from predators. The study found that both species used chemical self-referencing to locate similarly sized fish of the same species.
Scientists have developed proteins that can destroy chemical warfare agents up to 15,000 times more effectively than their natural counterparts. The new substances have potential uses in protecting soldiers and others from nerve gas attacks.
A study is underway to document the consequences of low-dose exposure to organophosphates, a common pesticide that can impact nerves and cause chronic disabilities such as learning and memory problems. The researchers aim to identify ways to mitigate the effects of these chemicals on brain function.
Researchers from Boston College and Brandeis University found that mosquitoes use TRPA1 channels to distinguish between heat and chemical odors. This discovery could lead to the development of solutions to target disease-spreading mosquitoes, reducing their ability to sense humans and transmit diseases.
A Baylor University study investigated links between Gulf War Illness (GWI) and veterans' locations during the war. GWI was most prevalent in forward areas of Iraq and Kuwait, where it was strongly associated with use of a medication given to troops to protect them from nerve agent effects.
Researchers at Yale University have developed a practical method to synthesize huperzine A, a natural enzyme inhibitor that has been used to treat Alzheimer's disease in China. The compound shows promise in combating the effects of chemical warfare agents and may offer improved therapeutic benefits compared to existing treatments.
Researchers found cardiac damage in mice exposed to low-dose sarin, including left ventricular dilation and prolonged ventricular repolarization. The study suggests a potential link between low-dose chemical warfare agent exposure and long-lasting heart problems.
Researchers at Purdue University and NASA found that compounds containing fluorine atoms are more efficient at blocking radiation, contributing to global warming. These compounds, such as chlorofluorocarbons, hydrofluorocarbons, and sulfur and nitrogen fluorides, have the potential to quickly slam the atmospheric window shut, unlike ca...
A new study by UT Southwestern Medical Center researchers has pinpointed damage inside the brains of Gulf War syndrome patients, linking their illness to chemical exposures. The research identifies areas of the brain that function abnormally, including the basal ganglia, hippocampus, and thalamus.
Researchers found evidence of ancient chemical warfare in a Roman siege, with the Persians using bitumen and sulphur crystals to create choking gases. The discovery sheds new light on the tactics used by the Sasanian Persians during the 256 AD siege.
A study by UCSD researchers reveals a link between chemical exposure and chronic, multi-symptom health problems in Persian Gulf War veterans. The study found that symptoms such as fatigue, muscle pain, and memory problems were more prevalent among veterans exposed to certain chemicals.
A credit-card-sized gas chromatography platform is being developed to analyze volatile compounds in seconds, enabling faster diagnosis and monitoring of diseases like diabetes and breast cancer. The new architecture, named GC Matrix, will separate complex compounds using MEMS technology, improving speed, portability, and power efficiency.
The MIT gas sensor is a tiny energy-efficient device that can detect minute quantities of hazardous gases in 4 seconds. It uses gas chromatography and mass spectrometry techniques on a miniature scale, reducing the size and power consumption compared to current devices.
Researchers from Sandia National Laboratories tested the system during a series of games, achieving broad coverage of over 40 different chemicals using multiple detection technologies. The Rapidly Deployable Chemical Detection System offers a fast and potentially lifesaving capability to event managers, providing swift protection again...
Research at Yale School of Medicine found significant psychological distress among Iranians exposed to high-intensity warfare and chemical attacks. Fifty-nine percent of Sardasht residents experienced PTSD in their lifetime, with severe depressive symptoms also prevalent.
Researchers at Purdue University have developed a method to detect trace quantities of hazardous materials, including explosives, on surfaces such as luggage and skin. The portable device can analyze samples within seconds, making it potentially useful for security screening in public places.
A study published in Neurology reveals that Gulf War veterans under 45 have developed ALS, a neurodegenerative disorder, at an alarming rate. The Department of Veterans Affairs confirms the findings using a different method, raising questions about environmental exposures during the war and potential links to Gulf War syndrome.
The Lancet reports a severe decline in Iraq's healthcare infrastructure, exacerbated by the Gulf War and 12 years of economic sanctions. The US military's preparation for chemical and biological warfare has also contributed to the humanitarian disaster.
A study of Gulf War veterans found no significant difference in health indicators between those exposed to low levels of chemical warfare agents and those not exposed. Veterans deployed to the region were more likely to experience psychological and physical ailments, but these effects were not unique to those with exposure.
Researchers have identified mutant enzymes with improved detoxifying properties against chemical warfare agents and agricultural insecticides. By modifying amino acids, the team has created faster-detoxifying enzymes that can efficiently degrade these compounds.
Scientists use ion-trap secondary ion mass spectrometer (IT-SIMS) to detect chemical warfare agents like HD and VX at part-per-million levels. The technique offers increased specificity, speed, and minimal sample preparation, making it ideal for environmental restoration and national security applications.