Articles tagged with Radioisotopes
Researchers at the University of Tokyo have demonstrated that incorporating satellite measurements of water vapor isotopes into weather models improves forecasts of atmospheric conditions. This addition leads to more accurate weather forecasts, particularly for heavy rainfall predictions.
The University of Tennessee has appointed Carolyn J. Anderson as a UT-Oak Ridge National Laboratory Governor's Chair for Nuclear Medicine. She will focus on researching radioisotopes produced at ORNL for targeted alpha-emitting radiotherapy, which can precisely kill cancer cells with minimal side effects.
A study of human remains from an Italian necropolis provides clues about the daily lives of people 2,700 years ago. The analysis of isotopes in bones, teeth, hair, and nails reveals differences in diet between men and women, as well as a society with significant mobility and contact with other populations.
The European Association of Nuclear Medicine (EANM) has launched a new award to accelerate alpha radioligand therapy (α-RLT) research in prostate cancer. The EANM Young Scientist Network Award offers €40,000 in funding for promising researchers.
Researchers have identified a field of tektites in Brazilian territory, which may have been formed by a single cosmic collision event. The geraisites, named after the Brazilian state of Minas Gerais where they were first discovered, have distinct geochemical signatures and date back approximately 6.3 million years.
Studies presented at the inaugural Multidisciplinary Radiopharmaceutical Therapy Symposium highlight the growing potential of RPTs to improve cancer outcomes. A meta-analysis shows Lu-177 PSMA-617 consistently prolongs progression-free survival without adding severe side effects for patients with advanced prostate cancer.
Researchers at FRIB have measured proton capture on arsenic-73 to produce selenium-74, providing new constraints on the formation and destruction of p-nuclei. This experiment brings closer understanding of rare isotope origins in the universe.
Researchers at Virginia Tech have developed a new method for attaching fluorine-18 to trifluoromethyl groups, enabling the tagging of previously inaccessible targets in PET scans. This breakthrough expands the range of molecules that can be imaged, potentially leading to earlier diagnoses and more targeted treatments for diseases.
Researchers analyzed sediment cores from three sites in the Arctic, finding that year-round ice coverage corresponded with less cosmic dust. This study suggests that tracking cosmic dust can help predict changes to sea ice coverage and understand warming trends.
Researchers found 'roof drainage' to be the main cause of radioactive cesium flow, with baseflow varying by air temperature. The study provides insights for improving monitoring systems and environmental management.
A new study from Mizzou's College of Veterinary Medicine analyzed the effects of radioactive iodine therapy on thyroid cancer in dogs. The research found that tailoring the dose of radiation more precisely for each dog could improve outcomes and potentially lead to more targeted care.
Researchers at MIT introduce the concept of a neutrino laser that uses cooled radioactive atoms to produce amplified neutrino beams. By cooling rubidium-83 to near absolute zero, the team predicts accelerated radioactive decay and production of neutrinos. This innovation could lead to new applications in medicine and communication.
Researchers at MURR have optimized Terbium-161 for radiopharmaceutical use, enabling targeted destruction of cancer cells with high-energy electrons. The breakthrough could add extra therapeutic effectiveness to existing treatments without requiring new drug development.
The US Department of Energy's Isotope Program will supply a U.S. company with accelerator-produced actinium-225 for the first FDA-approved targeted cancer therapy clinical trial. This milestone marks a new pipeline for this lifesaving isotope, addressing its limited production due to complex manufacturing.
The University of Leicester and NASA's Glenn Research Center have successfully combined cutting-edge radioisotope power system technology with high-efficiency power convertor technology, demonstrating a new breed of space nuclear power systems.
Researchers at Lawrence Berkeley National Laboratory have discovered the first organometallic molecule containing berkelium, a highly radioactive element. The discovery reveals that berkelium exhibits a unique tetravalent oxidation state, challenging traditional understanding of its behavior in the periodic table.
Researchers have found an unexpected accumulation of rare beryllium-10 isotopes in Pacific seabed samples, which could serve as a global time marker for dating geological archives spanning millions of years. The team proposes two possible explanations for the anomaly: changes in ocean currents or astrophysical events 10 million years ago.
A recent study resolves contradictions in the Moon's age and composition. Researchers found that the Moon's crust was melted twice, with the second heating event resetting its geological clock and altering the age of lunar rocks. This discovery sheds light on the Moon's turbulent history and volcanic past.
The University of Leicester is collaborating with NASA to develop a novel Radioisotope Power System design and conduct laboratory tests. This collaboration aims to improve the efficiency of electrically heated simulators and Stirling convertor technologies, enabling spacecraft to venture into new frontiers. The project builds on previo...
Researchers from the University of Liverpool and international collaboration measure nuclear radius of nobleium and fermium isotopes using laser spectroscopy. The study reveals smooth trends in charge radii and reduced influence of shell effects at superheavy element levels.
The American Physical Society has recognized the X-10 Graphite Pile as an APS historic site, commemorating its role in producing plutonium for the Manhattan Project. The reactor served as a facility for groundbreaking scientific research and radioisotope production from 1943 to 1963.
Researchers predicted promising reactions for creating double magic nuclei, such as <sup> 298 </sup> Fl and <sup> 304 </sup> 120. These elements could have unique properties and deepen understanding of atomic forces. The study is a step closer to the 'Island of Stability', where long-lasting superheavy nuclei might exist.
Researchers developed a novel compound to target prostate cancer using radioactive atom astatine-211, potentially overcoming issues with previous compounds like deastatination. The study found high accumulation in tumors and low accumulation in vital organs, highlighting the potential of this new compound for targeted alpha therapy.
A research team from the University of Göttingen has developed a new method to analyze the oxygen isotope composition of coral skeletons, allowing for more accurate temperature reconstructions and insights into biomineralization processes. This breakthrough enables scientists to correct for 'vital effects' that can distort climate data.
A new alpha-ray therapeutic agent ([At-211] PSMA-5) has been developed to target prostate-specific membrane antigen (PSMA) in refractory prostate cancer patients. The therapy has shown efficacy in animal models and is now being tested in a first-in-human clinical trial.
The University of Leicester is collaborating with ispace to explore lunar night survivability using Radioisotope Heater Units on the Series 3 lunar lander and rovers. The team aims to develop new technology to survive the cryogenic environment of lunar nights, which can drop temperatures to -170 degrees Celsius.
Researchers at MIT and LBNL created a simplified array of four pixels in tetromino shapes to detect radiation direction, achieving accuracy comparable to large expensive systems. The design reduces engineering costs while improving performance for handling multiple radiation sources.
The new department will expand and improve isotope research and production to meet the nation's growing need for critical isotopes. Cathy Cutler plans to leverage the Lab's nuclear physics accelerator infrastructure to develop novel isotopes and applications.
A new study enhances radiocarbon dating by creating a precise record of atmospheric shifts over 14,000 calendar years BP. This improvement allows for more accurate dating of sub-fossil samples, enabling researchers to reconstruct past environmental and climate changes during glacial times.
Researchers have developed a new technique to generically treat several kinds of cancer, showing tumors grew almost three times less and survival rates reached 100% after just one injection. The method targets cancer cells with alpha radiation, sparing healthy tissue.
Researchers have developed radiation-resistant inorganic resin scaffolds to separate radium, actinium, and lead from each other. The zirconium-based materials demonstrate good separation capabilities and remarkable radiopurities using relatively simple chemicals.
Researchers highlight gaps in tritium studies, focusing on species uptake and human health risks through the food chain. A global assessment is needed to minimize tritium's impact on individual species and the environment.
The use of 3D printing techniques can optimize the shape of uranium targets to increase the production of molybdenum-99. This method allows for a larger active surface area and more effective heat dissipation, resulting in higher processing efficiency.
A novel radiopharmaceutical treatment targeting prostate-specific membrane antigen effectively shrinks prostate tumors in mice, with minimal impact on major organs. Researchers plan to launch a clinical trial for refractory prostate cancer patients in two years.
Researchers have made a surprising discovery that liquid smoke can enhance plant defense against pests and diseases, leading to new farming practices. The study found that sunflowers grown in soil treated with liquid smoke had larger, thicker, and greener leaves and appeared less prone to pests and disease.
Researchers found that inland water carbon emissions are on the rise, with estimates suggesting 4.4 billion metric tons of carbon are released annually, primarily as carbon dioxide or methane. A new thermal insulation composite made from silica particles also shows promise for improving energy efficiency and reducing moisture damage.
Researchers have created a noninvasive method to identify tumors causing hypertension by reducing radiation exposure. The new fluorine-based agent replaces an iodine-based agent and may allow for screening of patients with hypertension-linked aldosterone adenomas.
Fossils found in the 'Cradle of Humankind' in South Africa are estimated to be between 3.4 and 3.7 million years old, making them older than previously thought. This new age range places these fossils at the beginning of the Australopithecus era, challenging previous theories that they were near the end.
A new ultra-low dose PET technique eliminates the need for a CT scan, significantly reducing patient radiation exposure. The technique uses background radiation to reconstruct attenuation maps and quantitative PET images, with an average organ quantitative error of 4.8-10 percent.
Researchers at University of Tokyo develop alternative production method for radioisotope technetium-99m, reducing reliance on aging nuclear reactors. The new method uses linear particle accelerators and activated carbon to produce the isotope with similar effectiveness as conventionally produced versions.
Researchers are developing radioconjugate drugs that combine radiation with a tumor-targeting agent to selectively kill cancer cells. Two approved drugs, Lutathera and Pluvicto, demonstrate the potential of this therapy, which could change the future of cancer treatment.
Duke University scientists developed isotope-based tests to identify lead contamination origins and assess risk in urban soils. The new test can distinguish between legacy and modern sources of lead, helping public health officials track and remediate contaminated areas. Elevated lead levels pose long-term health risks for children.
A recent study from Penn State and Lawrence Livermore National Laboratory has discovered a natural protein called lanmodulin that can recover and purify radioactive metals like actinium. The protein-based approach simplifies the purification process, reduces costs, and enables the production of higher-purity actinium.
Oak Ridge National Laboratory (ORNL) has produced a key radioisotope, actinium-225 nitrate, for pharmaceutical companies developing new cancer treatments. ORNL's production of Ac-225 enables the support of applications without disclosing proprietary information, fulfilling FDA requirements.
Researchers at Berkeley Lab have developed new methods for producing cerium-134, a radioisotope that could serve as a tunable PET imaging surrogate for several alpha-emitting therapeutic isotopes. This breakthrough enables the creation of single molecular systems for both diagnosing and treating cancer in real time.
The high flux neutron generator produces boutique neutrons ideal for dating fine-grained rocks and analyzing evidence. The device expands the capability of dating materials like clay minerals associated with ore deposits.
Scientists at the University of Alabama at Birmingham have successfully produced and purified two rare medical isotopes, Sc-43 and Sc-47, which can be used for visualizing and destroying solid tumors. The team's innovative approach uses a combination of particle accelerators and purification techniques to overcome production challenges.
A study found that a significant release of radioactive ruthenium occurred in October 2017, with highest levels detected over Romania. The release is believed to have originated from the Mayak nuclear complex in Russia, consistent with air mass movements and deposition patterns.
Kanazawa University researchers have synthesized a radiotheranostic system using astatine and iodine as alpha-particle and gamma-radiation sources, respectively. The system utilizes a peptide carrier molecule to target tumors, achieving high accumulation in cancer cells.
A Northwestern University research team has developed a new semiconductor device that can detect gamma rays and identify radioactive isotopes at room temperature. The device, made of cesium lead bromide, offers high spectral resolution and can be scaled up for widespread use in biomedical imaging, astronomy, and spectroscopy.
Researchers from North Carolina State University have discovered a key flaw in the widely used radioisotope dating technique, which may lead to overestimated ages of geological samples. The technique's accuracy depends on accounting for differential mass diffusion, a process that was previously overlooked.
Researchers at the University of Missouri are exploring alternative materials to recycle metals used in radioisotope production. They found that adding sulfides to tungsten, osmium, and molybdenum can recover up to 93% of the metals while producing needed radioisotopes, potentially cutting healthcare costs.
Researchers at Nagoya Institute of Technology have developed a new molecular pump that can transport cesium using light. The pump, inspired by rhodopsins found in bacteria, has the potential to facilitate collection and storage of cesium from the environment.
A team of scientists from Purdue University and other institutions dated the 'Little Foot' skeleton at 3.67 million years old using a new radioisotopic dating technique called isochron burial dating. This places Little Foot as an older relative of Lucy, a famous Australopithecus skeleton dated at 3.2 million years old.
A compact source of X-rays and other forms of radiation has been invented by a University of Missouri engineering team, enabling the creation of inexpensive and portable X-ray scanners for medical diagnosis and terrorism prevention. The device could improve healthcare services in remote regions and reduce costs.
Scientists warn of a global shortage of medical isotopes, used for diagnostic and treatment procedures, putting patient care at risk. The lack of these life-saving materials could lead to less accurate tests, higher radiation doses, and increased healthcare costs.
A global shortage of medical isotopes, used in diagnostic and therapeutic procedures, poses a threat to patient care and may force doctors to use less accurate tests. The shortage is attributed to the unexpected shutdown of major isotope production facilities, leaving only 10-15% of isotopes produced domestically.
Researchers at SNM's 55th Annual Meeting present a study on pre-targeting strategies that combine molecular imaging techniques with targeted therapy, offering personalized medicine to cancer patients. This approach can increase the effectiveness of therapies and minimize discomfort during treatment.
Researchers found that radium-223 significantly reduced levels of bone alkaline phosphatase, a marker for HRPC progression, by 66% and prolonged median survival time by 41 weeks. However, treatment had no significant effect on skeletal-related events.
Researchers at Albert Einstein College of Medicine successfully targeted and destroyed HIV-infected cells in mice using radioimmunotherapy. The treatment aims to eliminate the virus-infected cells that make infections chronic, potentially leading to a cure for HIV-infected patients.