Nanotechnology podcasts

Sean Carroll talks with Caltech researcher Erik Winfree about programming DNA to process information and build microscopic machines. They discuss molecular computation, self-assembly, biological information processing and the prospects for DNA-based robots in biology and medicine.

Hosted by Sean Carroll

Rajesh Menon discusses research combining optical systems with nanofabrication. The episode explores holographic lithography and how coordinated advances in light-based methods and fabrication can support new three-dimensional manufacturing technologies.

Hamish Johnston speaks with iGii co-founder Marco Caffio about Gii, a porous three-dimensional carbon nanomaterial. They discuss how it retains useful electronic, structural and chemical properties associated with graphene while offering different manufacturing and integration options. Applications include chemical sensors, batteries and heaters. The conversation also covers the company’s origins and career advice for physicists entering materials technology.

Hosted by Hamish Johnston

Sophia Chen interviews Matt Dickerson of the Air Force Research Laboratory about manufacturing nanofibrous ceramics with additive methods. The discussion explains how block copolymers direct preceramic polymers into fibers, followed by heating that removes the block polymer and converts the precursor to ceramic. Compared with electrospun mats, printing offers control over component geometry. Ceramic springs illustrate repeated deformation without degrading their mechanical properties, with possible applications in catalysts, batteries and high-temperature components.

Hosted by Sophia Chen

Nicholas Weiler talks with Guosong Hong about overcoming the limited penetration of light into brain tissue. Inspired by transparent tissues in glass frogs and the eye, Hong describes approaches involving fluorescent nanomaterials, focused ultrasound and molecules that temporarily reduce optical scattering. The conversation examines experiments with a common food dye and a project to genetically engineer mice with transparent brains from birth. These techniques could provide new ways to observe neural circuits and study how the brain develops and functions.

Hosted by Nicholas Weiler

Donna Blackmond discusses why biological molecules favour a single handedness and how that asymmetry might have emerged. The homochirality discussion begins at 6:18. The episode also covers antiparasitic medicines recognised by the 2015 medicine Nobel prize, blood-based estimates of time since death, Matt Gunther’s interview with chemistry laureate Tomas Lindahl about DNA repair, polymer additives designed to reduce aviation-fuel fires, and carbon quantum dots produced from urine.