Only seldom are square/rectangular shapes found in nature. One notable exception is the bird feather shaft -why?

Only seldom are square/rectangular shapes found in nature. One notable exception is the bird feather shaft -why?
Glass-glass fluidic devices for large-area integration with adaptive façades and smart windows
Researchers have developed a biosensor to detect Sortase A (SrtA) in chronic wounds to assist in early diagnosis of infection.
Liu et al. have developed a template-free, one-pot synthesis of amphoteric Janus-type yolk-shell nanoparticles (YSN) with dual adsorption capability.
A team of researchers from the U.K. and Germany present the technology behind an exciting phase of solar cell technology: solar trees.
Researchers linked a polymeric transfection reagent into a hollow protein nanocage for drug delivery.
Researchers in China have developed a simple technique for patterning functional organic materials over a large area via an indirect, solution processable method.
Photoluminescent spectral conversion as a promising route to increase the quantum yield in natural and artificial photosynthesis.
Researchers in China have developed a novel probe for in vivo sialome imaging. Based on the click reaction the fluorophore is generated in situ.
A new 1D gold nanowire is proposed for novel nanoelectronics by researchers in China. The design of the new structure was achieved by carefully considering the stability of 0D, 1D, and 2D gold nanostructures.