Posts tagged with "Center for Accelerator Mass Spectrometry"

radiocarbon

Laser tracks therapeutics, nutrients, toxins

May 15, 2017 -  
Lawrence Livermore National Laboratory (LLNL) researchers have developed a laser-based tabletop device to measure carbon-14 (radiocarbon). In biological systems, carbon-14 ( 14 C ) can be used as a biochemical tracer to track micro-doses of nutrients, toxins and therapeutics in humans and animals...
ocean floor

New measurements of oceanic organic matter help scientists in understanding of climate

Nov. 16, 2016 -  
Researchers have found that new measurements of the size, age and composition of organic matter in the Pacific Ocean affects short-term and long-term climate impacts. The findings could have implications for climate in terms of how long organic matter is stored in the ocean before being converted...
For article Biological sample prep time cut dramatically -- from days to minutes

Biological sample prep time cut dramatically -- from days to minutes

Oct. 15, 2014 -  
When Lawrence Livermore National Laboratory researchers invented the field of biological accelerator mass spectrometry (AMS) in the late 1980s, the process of preparing the samples was time-consuming and cumbersome. Physicists and biomedical researchers used torches, vacuum lines, special...
For article Insulin-creating cell research may lead to better diabetes treatment

Insulin-creating cell research may lead to better diabetes treatment

Oct. 28, 2010 -  
Beta cells, which make insulin in the human body, do not replicate after the age of 30, indicating that clinicians may be closer to better treating diabetes. Type 1 diabetes is caused by a loss of beta cells by auto-immunity while type 2 is due to a relative insufficiency of beta cells. Whether...