Sustainable Radiative Cooling of Microstructure Modulated Flexible poly(lactic Acid) Films.

The optimization of polymer microstructures to enable resonant light scattering within the solar spectrum offers significant potential for passive cooling, however, achieving precise microstructural control remains technically challenging. Herein, we present a strategy for fabricating polylactide radiative cooling film with adjustable microstructure. The surface pore structure and internal spherical structure of the film are precisely controlled by polyethylene glycol, which in turn modulates the film's optical properties.

Advancing fatty liver research in dairy cows: Development of a bovine liver organoid model.

Aiming to enhance disease modeling and drug screening for fatty liver disease, a bovine liver organoid model was developed using R-spondin-1 conditioned medium. Adult stem cells from calf liver were cultured and differentiated into organoids, exhibiting specific liver markers and functions. These organoids, treated by a mixture of oleic acid and palmitic acid, demonstrated significant accumulation of total cholesterol and triglycerides, effectively mimicking the fatty liver condition observed in high-yielding dairy cows during the periparturient period.