Precise optical and thermal regulatory systems are found in nature, specifically in the
microstructures on organisms' surfaces. In fact, the interaction between light and matter …

Natural creatures have evolved elaborate photonic nanostructures on multiple scales and
dimensions in a hierarchical, organized way to realize controllable absorption, reflection, or …

Highly reflective crystals of the nucleotide base guanine are widely distributed in animal
coloration and visual systems. Organisms precisely control the morphology and organization …

Biomimetic synthesis of guanine crystals has been focused on in the last years. However,
multi‐functional guanine crystals occluded with fluorescent molecules have not been …

Biological guanine crystals in organisms exhibit excellent optical properties and functions,
including broad-band and narrow-band reflectors, band-tunable reflectors, mirrors, and …

Biogenic twinning β-phase anhydrous guanine nanoplatelets are utilized as optical
materials in organisms. However, it is still a puzzle how to produce crystalline guanine …

Radiative cooling with eco-friendly and zero-energy advantages is considered one of the
most viable solutions to address the conflict between traditional energy-intensive cooling …

Hyperspectral data encode information from electromagnetic radiation (ie, color) of any
object in the form of a spectral signature; these data can then be used to distinguish among …

The skin color of koi carp (Cyprinus carpio L.) is one of the traits that most influence their
ornamental and economic values. The present study suggested the effects of temperature …

Highly reflective crystals of small organic molecules are the functional materials in a wide
variety of optical systems in animals. We present a perspective on this field of organic …