PNAS Science Sessions
Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us.
Latest episodes
Jun 10, 2019 • 5min
Building new biological objects
Frances Arnold explains how she harnesses the power of evolution to create proteins and organisms with applications in medicine and in alternative energy.
Jun 10, 2019 • 5min
Virus-fighting bacteria
Akiko Iwasaki explains how gut bacteria boost immunity to influenza virus.
Jun 10, 2019 • 5min
Bugging the immune system
Sarkis Mazmanian talks about how gut bacteria interact with the immune system to influence health and disease.
Jun 10, 2019 • 5min
Bacterial invisible ink
David Walt discusses his research on using fluorescent bacteria to send secret messages.
Jun 10, 2019 • 5min
Gatekeepers of our immune system
2011 Nobel Prize winner Bruce Beutler talks about his discovery of the first mammalian innate immune receptors, our first line of defense against the threat of microorganisms.
Jun 10, 2019 • 5min
Thwarting dengue transmission
Medical entomologist Scott O'Neill explains how an intracellular bacterium could help curb the spread of dengue virus.
Jun 10, 2019 • 5min
Cancer immunotherapy comes of age
Cell biologist Ira Mellman discusses cancer immunotherapy at Genentech.
Jun 10, 2019 • 5min
Revolutionizing microscopy
Changhuei Yang and Guoan Zheng talk about their inexpensive, lens-free biomedical imaging device, which could change the way we do microscopy.
Jun 10, 2019 • 5min
Making physics palatable
Spanish chef Ferran Adrià and physicist David Weitz discuss the science of cooking.
Jun 10, 2019 • 5min
The benefits of gut bacteria
Lora Hooper talks about the complex bacterial ecosystem in our gut and its important role in metabolism and immunity.
