NIST Develops New Technology for Rapid and Accurate Assessment of DNA Damage from Ionizing Radiation

A team of scientists at the National Institute of Standards and Technology (NIST) has developed a groundbreaking technology that can swiftly and accurately measure DNA damage caused by ionizing radiation, such as X-rays and gamma rays. This novel method, which uses nanopores to detect radiation damage, has the potential to revolutionize cancer treatment and emergency response by providing real-time measurements of radiation exposure. "With nanopore sensing, we're not just measuring radiation damage; we're rewriting the rules on how quickly and effectively we can respond to both cancer care and emergencies," said NIST physical scientist Joseph Robertson.

Key Takeaways:

• The new technology uses nanopores to detect radiation damage in DNA molecules, resulting in faster and more accurate measurements than existing methods.
• The technique has the potential to improve cancer treatment by allowing doctors to tailor therapies more precisely to each patient's needs.
• The technology can measure radiation exposure in real-time, enabling first responders to provide timely and effective care in radiological emergencies.
• The NIST breakthrough has the potential to save lives by ensuring that individuals receive the appropriate care as quickly as possible.
• The new technology has been demonstrated in the laboratory using carefully prepared DNA, and future plans involve developing a portable version for use in hospitals and emergency response situations.
• The research has been published in Analytical Chemistry, showcasing the technology's effectiveness in measuring doses between 2 Gy and 10 Gy.

Statistics:

• The new technology can produce results within minutes, compared to the existing methods which take at least two or three days.
• The technique is particularly effective for measuring doses between 2 Gy and 10 Gy, a crucial range of radiation exposure in humans that necessitates immediate medical care.
• A gray (Gy) is a unit that expresses the amount of radiation energy absorbed by the body or an object per kilogram of mass.
• The existing techniques have a limited range and cannot measure doses above about 5 gray, which is lower than what an individual may be exposed to in a major radiological incident.

Sources:

• National Institute of Standards and Technology (NIST)
• Analytical Chemistry