The observation and investigation of phenomena in the natural world can inspire the
discovery of new materials and a greater understanding of the underlying physical …

Melanin is a biological pigment formed by indoles and phenolic compounds. It is widely
found in living organisms and has a variety of unique properties. Due to its diverse …

In this article, we review the current state of knowledge concerning the physical and
chemical properties of the eumelanin pigment. We examine properties related to its …

Imaging techniques based on retinal autofluorescence have found broad applications in
ophthalmology because they are extremely sensitive and noninvasive. Conventional fundus …

This review attempts to summarize molecular mechanisms, spectral and intensity properties,
detection techniques and applications of ultra-weak photon emission. Ultra-weak photon …

This paper reviews the biosynthesis and physicochemical properties of the ocular melanin.
Age-related changes of melanin granules and the corresponding formation of lipofuscin …

The retina represents a paradox, in that, while light and oxygen are essential for vision,
these conditions also favour the formation of reactive oxygen species leading to …

purpose. To evaluate the origin of the near-infrared autofluorescence (AF) of the fundus
detected by scanning laser ophthalmoscopy and compare the distribution of this AF with that …

Polydopamine (PDA) has fascinating properties such as inherent biocompatibility, simple
preparation, strong near-infrared absorption, high photothermal conversion efficiency, and …

We report absolute values for the radiative relaxation quantum yield of synthetic eumelanin
as a function of excitation energy. These values were determined by correcting for pump …