Month: September 2022

MAG-SENSITIVITY. "There is a long history of experimental studies of magnetic-field sensitivity on radical-pair reactions in solution. However, in those early experiments sensitivity was observed only for field strengths between 10 mT and several tesla, much larger than Earth’s (~50 μT). Within the past decade, the observed sensitivity of such reactions has gradually increased." https://lnkd.in/eRUdQZj View in LinkedIn

ORDER OF MAGNITUDE. "Maeda et al., reported the most sensitive radical-pair reaction so far: a triad composed of linked carotenoid (C), porphyrin (P) and fullerene (F). They found magnetic field sensitivities down to 50 μT, of the same order as the geomagnetic field." https://lnkd.in/eRUdQZj View in LinkedIn

RADICAL PAIRS IN MIGRATION. "We study the suggestion that the geomagnetic field is detected by changes in the rates and yields of radical pair reactions. Assuming that photoreceptors involved in vision are involved in radical pair reactions, the magnetic field will result in a modulation of vision." http://www.ks.uiuc.edu/Research/quantum_biology/ View in LinkedIn

HOW PHYSICS CAN REVOLUTIONIZE BIOLOGY. https://lnkd.in/eV6XKcb View in LinkedIn

THE THIRD AREA where QB has made strong inroads, beyond photosynthesis and bird migration, is in the eye. The next short series will highlight some of these themes. View in LinkedIn

PHOTOTRANSDUCTION REVIEW. "The last few years have marked a turning point for the field of photoreceptor biology." https://lnkd.in/eyhMFMF View in LinkedIn

RETINAL PHOTOTRANSDUCTION "is a process by which light energy is converted to electrical and chemical signals in the photoreceptors. Photoisomerization occurs at a remarkable rapid rate of

"PHOTOISOMERIZATION involves transitioning of energy between different electronic states of the retinal molecule...quantum effects, particularly coherence, could play a role in phototransduction." https://lnkd.in/eTtJ_KE View in LinkedIn

"CRYPTOCHROME, a ubiquitous photoactive protein that resides in the eye and is also present in plants and bacteria, is a prime candidate as the host of the radical-pair mechanism." https://lnkd.in/eRUdQZj View in LinkedIn

CRYPTOCHROMES "are blue-light absorbing photoreceptors found in many organisms where they have been involved in numerous growth, developmental, and circadian responses." https://lnkd.in/ePWPwaU View in LinkedIn